monuments :: essays research papers

Monuments   Ã‚  Ã‚  Ã‚  Ã‚  Monuments are a symbol of a significant time in history. Monuments represent life, death, success, and struggle just to name a few. They have become as important to society as the events they represent. They bring history alive to new generations and memories to those who experience them firsthand. Monuments create a bridge between generations. Many parents feel a certain indescribable joyfulness when they see the look in their child’s eyes they had went they viewed the same monument.   Ã‚  Ã‚  Ã‚  Ã‚  Many people feel a strong sense of patriotism and nationalism when they view a monument. Pride in one’s country is a great feeling. Monuments help bring out those feelings of nationalism. Homeland monuments such as the Statue of Liberty and Madison Square Garden makes one feel special. Millions of people from all over the world come to where you call home to view something that is special to you. We take such things for granted too often.   Ã‚  Ã‚  Ã‚  Ã‚  I came across many monuments in my research for this paper. I was very intrigued by monuments in New York City. Many people forget about the less talked about monuments. Such as the Flatiron Building and Gracie Mansion. Of course they are those well-known monuments as well. There is the UN building, which has been around since 1949. Penn Station is also another well-known monument. It has been around since the early 1900’s. There are many others including Grand Central Station, the George Washington Bridge, the Cathedral of St. John and Yankee Stadium just to name a few.   Ã‚  Ã‚  Ã‚  Ã‚  I have seen and been to a few monuments in my life. The one that’s sticks out in my mind the most is my visit to the World Trade Center after the first bombing. I remember the first couple of floors were being worked on, and you couldn’t really walk pass the building. Still, it was a magnificent site to see. I must have looked like a tourist because my eyes were constantly focus on all the huge skyscrapers that surrounded me.   Ã‚  Ã‚  Ã‚  Ã‚  Another monument I recently visited is the Reynolda House in North Carolina. The mansion was transformed from a place of living to a thriving monument.

Trouble with Women in Hills Like White Elephants :: Hills Like White Elephants Essays

Trouble with Women in Hills Like White Elephants The short story, "Hills Like White Elephants," by Ernest Hemingway, has a lot to do with how the author lived. The time period the story mostly relates to is when he was married to Hadley and having an affair with Pauline. The story shows problems within a relationship and a lack of communication between a couple. While Hemingway was writing this story, he wrote a letter to F. Scott Fitzgerald about Pauline. He wrote about sitting in the shade and talking with her while waiting at a station. In the story, "The American and the girl with him sat at a table in the shade, outside the building" (Hemingway 731). The girl comments on the hills in the background, how they like white elephants. Her boyfriend just ignores her and every time she talks about the hills, he changes the subject. According to James Mellow, "Another oddity is that in the earliest manuscript fragment relating to the story, written in 1925, is that Hemingway who remarks to Hadley, ‘look at those god-damn white mountains,’ and she answers, ‘They are the most mysterious things I have ever seen’" (348). This shows how Hemingway came up with the idea of the white elephants. Another part of the story that relates to his life is the setting. While Hemingway was in Spain, the setting of the story, he found out that Hadley was pregnant for the second time. The story might have shown his true feelings about the pregnancy. In the story, the boyfriend is moody and wants the girl to do what he wants. This could be the same way Hemingway felt towards Hadley towards the end of their marriage. Also, on the manuscript of the story, he wrote a note about Pauline. This shows that he cared about her while writing the story. Another relationship between the two is the way Hemingway dealt with women. He was married four times, and one can assume that he had his share of trouble in finding the right woman. The man in the story has trouble communicating with his girlfriend, which creates a problem in their relationship. Basically, he wants her to do what he wants and won’t have it any other way. As Mellow puts it, "It is a classic, understated Hemingway story of failure of communication between the sexes" (348). Trouble with Women in Hills Like White Elephants :: Hills Like White Elephants Essays Trouble with Women in Hills Like White Elephants The short story, "Hills Like White Elephants," by Ernest Hemingway, has a lot to do with how the author lived. The time period the story mostly relates to is when he was married to Hadley and having an affair with Pauline. The story shows problems within a relationship and a lack of communication between a couple. While Hemingway was writing this story, he wrote a letter to F. Scott Fitzgerald about Pauline. He wrote about sitting in the shade and talking with her while waiting at a station. In the story, "The American and the girl with him sat at a table in the shade, outside the building" (Hemingway 731). The girl comments on the hills in the background, how they like white elephants. Her boyfriend just ignores her and every time she talks about the hills, he changes the subject. According to James Mellow, "Another oddity is that in the earliest manuscript fragment relating to the story, written in 1925, is that Hemingway who remarks to Hadley, ‘look at those god-damn white mountains,’ and she answers, ‘They are the most mysterious things I have ever seen’" (348). This shows how Hemingway came up with the idea of the white elephants. Another part of the story that relates to his life is the setting. While Hemingway was in Spain, the setting of the story, he found out that Hadley was pregnant for the second time. The story might have shown his true feelings about the pregnancy. In the story, the boyfriend is moody and wants the girl to do what he wants. This could be the same way Hemingway felt towards Hadley towards the end of their marriage. Also, on the manuscript of the story, he wrote a note about Pauline. This shows that he cared about her while writing the story. Another relationship between the two is the way Hemingway dealt with women. He was married four times, and one can assume that he had his share of trouble in finding the right woman. The man in the story has trouble communicating with his girlfriend, which creates a problem in their relationship. Basically, he wants her to do what he wants and won’t have it any other way. As Mellow puts it, "It is a classic, understated Hemingway story of failure of communication between the sexes" (348).

Caring for Individuals with Additional Needs Essay

A brief introduction to the introductory pack including aims and objectives Include a definition of additional needs Explain why it is important for care practitioners to be aware of the different additional needs that people may have (150 words) P1 –Outline reasons why individuals may experience additional needs – Produce a newsletter What are additional needs – What is a physical disability and how does it have an impact on an individual to be classed as an additional need? What is a sensory disability? Give examples What is a cognitive disability? Give examples (200 words) Define and describe the different types of disabilities, signs and symptoms, cause of the additional need and why they have an additional need – e.g. Down’s syndrome; cystic fibrosis, autistic spectrum, people with mental health problems, asthma, multiple sclerosis, paraplegia ( 1000 words) For example Attention deficit hyperactivity disorder (ADHD) & (ADD) are conditions which result in problem behaviour and poor attention span. Children find it hard to control their behaviour. They might be impulsive, restless and inattentive. Children can have problems learning and socialising. The causes of ADHD are not clear. Possible causes are thought to be brain injury, chemical imbalance in the brain, genetic links, environmental factors and a possible link to diet. Some of these children present more challenging behaviour than others and may require support when socialising and in the learning context. This may result in one-to-one support in class. P2 – Describe models of disability –Booklet to include Define the differences between disability; impairment Explain the different models of disability – such as medical; social, charity and holistic or person centred model and give examples of that substantiate your understanding. Key questions to consider: Is it a positive or negative approach? Does it focus on the ability or disability of people with additional needs? Is there an aim to the model? Is the disabled person labelled as a victim? Give an example of the impact on service provision because of the model of disability P3- Explain the barriers which may be experienced by people with additional needs Define what a barrier could in reference to health and social care settings Identify the barriers that people with additional needs may face e.g. attitudinal barriers; discrimination, barriers to access and opportunities, cultural, stereotyping and discrimination, impact on self-esteem and the effects of this on a disabled person’s well-being and give examples of each barrier described P4 – Explain positive working practice with individuals with additional learning needs – written piece What is an additional learning need? Give examples of this with an explanation What support services can a client with additional learning needs access? What are the principles of positive working practice? E.g. explain empowering care and explain the importance of this when working with clients with additional learning needs What do you understand by person centred planning and why this is an example of positive working practice when working with clients with additional learning needs? What is safeguarding and how significant is this when working with people with additional learning needs? What is positive reinforcement and explain the relevance of this when promoting independence? What is ‘Guidance’ and how can this influence positive working practice / the conduct of carers? Why is it important for care workers to be registered with a regulatory body as positive working practice for people with additional learning needs? ( 2,000 words for p2, p3 and p4 ) Bibliography Boys D and Michie V (2008) BTEC National Health & Social Care Book 2: Cheltenham: Nelson Thornes (in your college library pages 196-237 has unit 26 Caring for people with additional needs – be aware the legislation may vary)

Macbeth: A King in Name Only Essay

â€Å"I am, indeed, a king, because I know how to rule myself† (Pietro Aretino). Effective kings know how to rule themselves and their people. Throughout William Shakespeare’s Macbeth, the protagonist shows that he lacks verity, or the ability to be truthful. Similarly, Macbeth is in need of stability. Finally, Macbeth shows that he lacks patience. The characteristics that Macbeth demonstrates in the play suggest that he is an ineffective ruler due to his lack of verity, stability, and patience, several qualities which Malcolm describes as required of an effective ruler. Being truthful is a necessary and important characteristic for a ruler to be effective. A ruler who lacks verity will be challenged and others will not trust him. A ruler needs the support of his people and can gain their respect by being truthful. Throughout the play, Macbeth shows a lack of truthfulness to many people, including himself. When Macbeth finishes discussing the details of how he and Lady Macbeth will murder King Duncan, he leaves her by saying, â€Å"[Go], and mock the time with the fairest show: / False face must hide what the false heart doth know† (Mac. 1.7.82-83). Macbeth is telling Lady Macbeth to act like a welcoming and friendly hostess for their special guest, Duncan, while hiding her dark desires to kill him and take his rule over Scotland. Early in the play, this shows that Macbeth is very untruthful and wants other people to think the opposite of what he is thinking. This parallels the theme of appearance versus reality because Macbeth wants his wife to look like she is friendly and warm, but in her heart know her intentions of killing the king. After killing Duncan, Macbeth regrets his bad choice, but then lies when he is talking to Banquo about the witches’ prophecies by saying, â€Å"I think not of them† (2.1.22). This demonstrates Macbeth’s lack of verity because he tells Banquo that he is not thinking about the witches’ prophecies, but he certainly is. Macbeth’s over-ambitious nature causes him to be untruthful in his thoughts and his actions. His thoughts are now starting to take control of his actions. Not only does Macbeth lack the truthfulness required of an effective ruler, but his stability is also questionable. To be effective, a ruler must exhibit stability. He must be calm and be able to control his emotions. He cannot  make careless or irrational decisions and must act in the best interest of others, rather than focusing on himself. Demonstration of this quality through these actions is important in winning trust and respect from those under his rule. Macbeth’s mental stability starts to deteriorate and this leads to impure and insane behaviour. Macbeth is still contemplating killing Duncan, when he has a hallucination and says: Is this a dagger which I see before me, The handle toward my hand? Come, let me clutch thee. I have thee not, and yet I see thee still. Art thou not, fatal vision, sensible To feeling, as to sight? or art thou but A dagger of the mind, a false creation, Proceeding from the heat-oppressed brain? (2.1.33-39) Macbeth sees a dagger with drops of blood all over it, the blade pointing to Duncan and the handle to him. This suggests that fate is telling Macbeth to kill Duncan. This shows Macbeth’s mental instability because he is imagining the image of a bloody dagger, which indeed suggests that he is unstable and not fit to be an effective king. Macbeth’s mental deterioration starts to show even more when he sees Banquo’s ghost at a banquet he holds for his lords. Macbeth appears to get angry at the ghost of Banquo when he slams his cup down saying, â€Å"Avaunt! and quit my sight! let the earth hide thee! / Thy bones are marrowless, thy blood is cold; / Thou hast no speculation in those eyes / Which thou dost glare with† (3.4.93-96). At this point, even Macbeth’s guests start to question him and Lady Macbeth tries to calm him down. This suggests he is feeling guilty from all of the evil deeds he has committed, especially the murder of his dear friend, Banqu o. Throughout the play, Macbeth’s instability causes him to commit selfish and illogical deeds, which leads to great chaos in Scotland. An unstable ruler will cause chaos in his land and will therefore be an ineffective ruler. Since Macbeth’s mental state is quickly deteriorating, he is being forced to make quick decisions which he does not think through. Finally, in order to deal with people effectively, a strong ruler needs patience. People have different opinions and needs and a ruler must react to challenges calmly,  taking time to consider all facts to make decisions in the best interest of the country. A ruler who shows patience becomes more approachable to his subjects who trust the ruler to make good decisions. Macbeth does not demonstrate this quality and his lack of patience leads him to make irrational decisions and to overthink things, thus contributing to his downfall. Macbeth’s great ambition controls his actions and makes him more impatient. Macbeth shows his ambition early in the play, after he and Banquo receive their prophecies from the â€Å"weird† sisters. At first, they question the prophecies they receive, but then Macbeth becomes impatient and wants to be king as quickly as possible and against all odds. At the king’s palace, he proves his impatience by saying, â€Å"The Prince of Cumberland! That is a step,/ On which I must fall down, or else o’erleap† (1.4.48-49). Macbeth means that he must either stay where he is right now, or he must commit evil deeds to get what he wants, which is to become king. This shows he is impatient because the prophecies could have meant that Macbeth was going to become king by fate, but instead he took it into his own hands to become king. He did not want to wait for fate to take its course. It is Lady Macbeth who persuades Macbeth to kill the king and she fuels Macbeth’s ambition by calling him a coward and unmanly. He feels that he has to prove himself to Lady Macbeth, so he follows through and kills the king rather than taking time to think through the consequences. Macbeth again proves his blind ambition and shows his impatient nature when he prepares to kill the king. Macbeth recognizes his blind ambition because â€Å"[he has] no spur/ To prick the sides of [his] intent, but only/ Vaulting ambition, which o’erleaps itself,/ And falls on the other† (1.7.25-28). Macbeth admits his ambition and says that this is the only reason he can give for wanting to kill the king so quickly. Macbeth’s impatience and ambition later lead him to kill Banquo and Macduff’s family in order to quickly remove obstacles he perceives are in the way of him becoming king. Macbeth’s impatience to become king continues as he becomes an ineffective ruler and disrupts the order of the once happy Scotland. The protagonist, Macbeth, brings chaos to Scotland because of his lack of verity, stability, and patience, all qualities which Malcolm states are necessary for a good king. Macbeth shows he lacks truth through his many lies. That he also lacks stability is proven in his many hallucinations. Finally, Macbeth’s impatience is proven through  his blindly ambitious murders. Macbeth is clearly an in effective ruler, but if you were king, would you know how to rule yourself? Works Cited Shakespeare, W. Macbeth. Toronto: Canadian School Book Exchange, 1996. Print.

Analysis Of The Fall Of Ferdinand Marcos Essay

October 10, 2001 Word Count: 2466 Research Question: How did Ferdinand E. Marcos eventually fall from power? INTRODUCTION Ferdinand E. Marcos was the longest reigning Philippine president in history. His rule spanned 20 years, beginning in 1965 up to his downfall in 1983. He was the first and only president re-elected so far (first in 1969 and second in 1981). After his second term, corruption in his administration was rampant. For 20 years he ruled the Philippines with an iron fist, and amassed a personal fortune. According to all sources, he managed to prolong his term for so long through his â€Å"private military† (Sonia M. Zaide, 217) that crushed or silenced opposition against him. His attempts to prolong his term however, were also responsible for the dissatisfaction of his people and the growth in opposition and against him which eventually led to his downfall, after the assassination of Benigno Aquino on 1983. BACKGROUND ON MARCOS’ RISE TO POWER Marcos came from a rich and politically prominent family in Ilocos, a province in the northern part of the Philippines. He began his political career in 1949, being elected to the House of Representatives as congressman of Ilocos. In 1965, he was elected as President of the Senate. He then (as a Nacionalista, one of the 2 main political parties) ran for president and gained victory over the incumbent president, Diosdado Macapagal. Marcos promised to â€Å"make the nation great again,† and during his first term of 6 years Marcos gained widespread popularity through his extensive economic and political achievements. In 1969 Marcos became the first (and up to the moment, still the only) re-elected president of the Philippines. During his second term however, Marcos lost popularity due to the extensive graft and corruption of his favoured cronies, and the human rights violations of the Marcos administration when he proclaimed Martial Law on September 21, 1972. He lifted Martial La w in 1981 after reducing the opposition by intimidation. During his second re-election in 1981, Marcos had only one opponent, Alejo Santos of the Nacionalista party, because Senator Benigno Aquino (who was his only credible opponent) was living in exile in the United States. During the next years, the Philippine economy was considered â€Å"the sick man of Asia† (Time Magazine). In 1982, Marcos was sickly and he was absent in many official ceremonies. During this time, his wife (Imelda Marcos) and her  cronies were unofficially running the country. It was during this time, when on August 21, 1983, his long time rival, Benigno Aquino (wife of Benigno Aquino), returned to the Philippines. He was assassinated in broad daylight in the Manila International Airport by one of the government military escorts and this incident was captured by camera (Don Lawson, 1). This infuriated the Filipino people, which was the final blow to his rule. After days of mass rallies and demonstrations all over the country, he called as snap election as part of his strategy to maintain his credibility in the international body. He was declared the official winner because of massive vote buying and cheating and intimation. The mass rallies and demonstrations continued nationwide which paralyzed the government operations † for example, banks were closed and transport services were on strike, and part of the military rebelled, and all these led to the now popular EDSA Revolution (also known as â€Å"People Power†) on February 16, 1986 which toppled Marcos’ rule. ANALYSIS OF THE CAUSES OF MARCOS DOWNFALL The causes of Marcos’ downfall can be divided into two parts † long term causes and short term causes. Marcos’ acts of corruption which include: his attainment of large sums of money from the Philippine treasury during his reign, abuse of military power to suppress opposition and maintain a firm grip on presidency, and his political schemes to prolong his rule were responsible for creating an atmosphere of hatred and discontent on Marcos’ rule, under the overriding atmosphere of fear created by the resulting suppression of any threats to his power. These doings cultivated the seeds of dissatisfaction which soon developed into unified hatred towards Marcos’ reign. There was widespread discontent, but this discontent was still silent. The short-term or immediate cause of Marcos’ downfall was the Assassination of Ninoy Aquino. The â€Å"assassination brought Philippine’s economic shambles to world attention† (Fred Poole and Max Vanz i, 244) and lead to Marcos’ fall from power after the EDSA revolution. MARCOS’ MILITARY The military was the initial basis of Marcos’ power. Marcos’ military control provided him with a huge political advantage. Marcos used the military to create an atmosphere of terror, to discourage opposition and  eliminate any threats to his power to enable him to continue his rule over the country. During his reign, bribery and intimidation of voters during elections was rampant. As the corruption in the Marcos administration became widespread, demonstrations occurred as student activism rose, but were quickly suppressed by his military. An example of this is the â€Å"Battle of Mendiola† on January 1970, in which demonstrators tried to storm in the gates of the Malacanang Palace (the Philippine Presidential building, similar to the White House). It was the most violent of the student demonstrations (Florida C. Leuterio, 151). Due to the increase in violence Marcos imposed martial law in 1972. According to all sources consulted, there may have been a possibil ity that some acts of violence were planned by Marcos to ensure the legitimacy of his declaration of martial law. Since the constitution limited his presidency for merely two terms, he was due to step down on December 30 1973. However, upon the proclamation of martial law, he would be able to perpetuate his rule over the Philippines, because the 1935 constitution had not stated the limitations for the length of martial law (Florida C. Leuterio, 153). Marcos then used the military to detain Filipinos suspected of subversion. This included all critics/activists (ranging from students to professionals), and potential political opponents. They were tortured by their captors and many were then held in military detention camps. Marcos’ â€Å"military establishment tightened its grasp into a stranglehold through increased terror† (Fred Poole and Max Vanzi, 208). Although POLITICAL SCHEMES TO PROLONG HIS TERM AND GAIN POWER For more than 20 years Marcos was able to prolong his term. Through his political schemes and manipulations, Marcos was able to continue with his presidency despite the limitation of only eight consecutive years, the decline of his country’s economy, and the harsh conditions suffered by the majority of its citizens. Even before the presidential elections of 1965 Marcos received numerous military decorations which made him one of the most decorated heroes of World War II. Through this, Marcos gained popular American support, and gained an edge in the 1965 Elections. Sterling Seagrave (author of The Marcos Dynasty) states that Marcos had merely invented the feats made the Philippines most decorated World War II hero. Don Lawson (author of Marcos and the Philippines) however, does not state that Marcos has invented those feats. During 1971 a Constitutional Convention was held to rewrite the 1935  constitution which would then enable Marcos to continue in power under the new constitution. On 1973 he enforced the new constitution which would give him both the powers of a president and a prime minister (until one is elected). The constitution was ratified through citizen assemblies by raise of hands. Due to the prevailing atmosphere, the people adopted to the new constitution. During elections, Marcos engaged in massive fraud to ensure his victory. ILL-GOTTEN WEALTH According to Australian investigator Reiner Jacobi the Marcos rule was economically disastrous for the Philippines. Financial he discovered showed that Marcos had â€Å"systematically looted his country for over 20 years.† He states that the Marcos’ taken at least $5 billion in â€Å"ill-gotten wealth† and that there is other material suggesting that Marcos took even more. Marcos â€Å"used his favourites†Ã‚ ¦ to take charge of the nation’s natural and human resources and its big economic ventures.† Journalist Ron Whittaker goes on to prove that as Marcos and his family amassed a personal fortune, through stealing from the Philippine treasury. He states that â€Å"Despite the hundreds of millions of dollars from the United States each year, Marcos’ government was falling increasingly into debt; and, even as his personal fortunes rapidly escalated, the majority of his people were living in poverty.† Although Marcos succeeded in intimidating his opposition and prolonging his term, his abuse of power exposed his corruptness to the people, which thus created an atmosphere of discontent towards him which continued to build up and would eventually cause his downfall. However, due to the atmosphere of fear Marcos has created, there was still a lack of motivation to call for reform and stand up against the threat of Marcos’ military. THE AQUINO ASSASSINATION AND THE EVENTS THAT FOLLOWED The final blow happened when Benigno Aquino, his only credible opponent, was assassinated by his military escorts, with this incident captured in video tape and broadcast in the foreign media. The event shocked the not only the Filipino people, but the whole world, as footage of the assassination was aired internationally (Sonia M. Zaide, 217). The Assassination was the last act of injustice that the people would take from Marcos. This infuriated the Filipino people, who  became bold because of their outrage. Benigno Aquino was transformed into a national idol (Florida C. Leuterio). It created anger in the Filipino’s that was able to supersede the atmosphere of fear. His death awakened the Filipinos to the â€Å"Evils of Marcos.† In addition to this militant groups (the August Twenty-One movement, Justice for Aquino, Justice for all, and BAYAN† were organized. They staged demonstrations calling for an end to Marcos’ rule. Aquino’s death caused a ch ain reaction of events that eventually forced Marcos out of power. As the Philippine economy deteriorated the Filipinos became poorer and poorer. Anti-Marcos demonstrations cause the decline of the tourism industry. Rampant corruption discouraged foreign investors. High oil prices, and the price decline of traditional exports caused a slow down in economic activity. The government was forced to borrow from the IMF, World Bank, the US and its foreign creditors pressured Marcos to implement reforms as a condition for granting him economic and financial assistance. Their actions were like a vote of no confidence to the Marcos rule and legitimacy as the living conditions of the Filipino’s had furthermore worsened (Florida C. Leuterio, 165). Their actions resulted in further depreciation of the Philippine Peso. As many businesses slowed down, there were mass layoffs which, in turn, caused more poverty and the further disenchantment of the people. Marcos’ effort to survive by calling and winning the snap elections on 1986 failed because of the massive cheating, and the people truly believed Cory Aquino was the true victor. Doubt and scepticism on Marcos furthermore threatened his rule. A group of reformist lead by Fidel V. Ramos, and Juan Ponce Enrile made plans to face the Marcos loyalist and overthrow Marcos. In an attempt to prevent a bloody civil war Cory Aquino launched civil disobedience nationwide in a movement which became known as EDSA or â€Å"People Power.† The Filipinos made a human barricade that prevented the two forces from attacking each other. US senator Paul Laxalt advised him to â€Å"cut, and cut clean.† Marcos was forced to exile in Hawaii on February 25, 1986. According to Dr. Florida C. Leuterio (author of Philippine History and Government), despite the hopelessness of the situation, Marcos had not yet  give up and attempted to impose martial law once again. The plan was code-named â€Å"Everlasting.† He was to send soldiers dressed in civilian clothing to spread violence and terror. This incident would eventually give him an excuse to once again impose martial law and thus, furthermore prolonging his term. However, before he could put his plan into act, the EDSA revolution took place. This truly exposes the corruptness of Marcos’ and furthermore proves his unjust nature and his illegitimacy as president. Sterling Seagrave adds that just before the inauguration of Cory Aquino, Marcos had contacted Enrile offering to set up a provisional government were Cory Aquino, Enrile, and Marcos would rule. This goes to show Marcos’ sheer determination to retain his presidency and prolong his term. ROLE OF THE MEDIA IN THE DOWNFALL OF MARCOS Ron Whittaker (a journalist who studies the effects on Media in politics) believes that the media has had a crucial role in contributing to the downfall of Marcos (both in exposing his corruption, and also in helping organize the EDSA revolution) and that Marcos might have retained his presidency if it were not for the media. He states that because of Marcos’ control over the media, the international community was not aware of the situation in the Philippines because unless certain attention is required, the â€Å"international media take their cues from local press coverage.† I strongly support this and believe that the media was essential in the downfall of Marcos. The assassination of Benigno Aquino was a key factor and the immediate cause of Marcos’ fall from power. It was the event that fuelled the Filipino’s angers and made them take action. It was the event that caused international eyes to observe the situation in the Philippines. This in turn, forced Marcos to think twice before carrying out his military abuses. CONCLUSION The Marcos experience teaches us that power corrupts and creates a situation which ultimately impoverishes the country and its people. The main cause of Marcos downfall is the suffering and poverty he created during his rule. Not even his control of the military can sustain him forever. Eventually he lost major support of the people, the church, and part of the military mutinied. (Unlike Lee Kuan Yu of Singapore who was also an  authoritarian leader, but he was perceived as honest and he was able to improve the economy of Singapore and the standard of living of his people. Even up to now Lee Kuan Yu is still active as a senior minister and highly respected all over the world, a sharp contrast to what happened to Marcos). Even if Marcos did not commit the fatal mistake of assassinating Benigno Aquino, I believe that it merely hastened the process and it would be only a question of time, before he will replaced by the people in a popular election or uprising. In this world of modern television and CNN, a corrupt leader like Marcos would not be able to sustain his image as a legitimate leader of his people. In many ways, the experience of Soeharto, who also had complete control of the military, also proves that a leader today cannot survive if there is widespread corruption and poverty in his country. With the help of the pouring international media, Marcos not only gained opposition locally, but abroad as well, and as a result of this Marcos was eventually forced to step down from power.

Evaluating The Waste Water Treatment Processes Environmental Sciences Essay

Domestic effluent intervention or sewerage intervention, is the procedure of taking contaminations from effluent and family sewerage, both overflow ( wastewaters ) and domestic. It includes physical, chemical, and biological procedures to take physical, chemical and biological contaminations. Its aim is to bring forth an environmentally-safe fluid waste watercourse ( or treated wastewater ) and a solid waste ( or treated sludge ) suitable for disposal or reuse ( normally as farm fertiliser ) . Using advanced engineering it is now possible to re-use sewerage wastewater for imbibing H2O, although Singapore is the lone state to implement such engineering on a production graduated table in its production of NEWater. 1.2 ORIGIN OF WASTE WATER Sewage is created by residential, institutional, and commercial and industrial constitutions and includes family waste liquid from lavatories, baths, showers, kitchens, sinks and so forth that is disposed of via cloacas. In many countries, sewerage besides includes liquid waste from industry and commercialism. The separation and draining of family waste into greywater and blackwater is going more common in the developed universe, with greywater being permitted to be used for irrigating workss or recycled for blushing lavatories. Sewage may include stormwater overflow. Sewage systems capable of managing stormwater are known as combined systems. Combined sewer systems are normally avoided now because precipitation causes widely changing flows cut downing sewerage intervention works efficiency. Combined cloacas require much larger, more expensive, intervention installations than healthful cloacas. Heavy storm overflow may overpower the sewerage intervention system, doing a spill or flood. Sanitary cloacas are typically much smaller than combined cloacas, and they are non designed to transport stormwater. Backups of natural sewerage can happen if inordinate Infiltration/Inflow is allowed into a healthful cloaca system. Modern sewered developments be given to be provided with separate storm drain systems for rainwater. As rainfall travels over roofs and the land, it may pick up assorted contaminations including dirt atoms and other deposit, heavy metals, organic compounds, carnal waste, and oil and lubricating oil. ( See urban overflow. ) Some legal powers require stormwater to have some degree of intervention before being discharged straight into waterways. Examples of intervention procedures used for stormwater include keeping basins, wetlands, buried vaults with assorted sorts of media filters, and vortex centrifuges ( to take harsh solids ) . Chapter TWO 2.1 OVERVIEW OF WASTE WATER TREATMENT PROCESSES Sewage can be treated near to where it is created, a decentralized system, ( in infected armored combat vehicles, biofilters or aerophilic intervention systems ) , or be collected and transported via a web of pipes and pump Stationss to a municipal intervention works, a centralized system, ( see sewage and pipes and substructure ) . Sewage aggregation and intervention is typically capable to local, province and federal ordinances and criterions. Industrial beginnings of effluent frequently require specialised intervention processes as shown in the diagram below: Procedure Flow Diagram for a typical intervention works via Subsurface Flow Constructed Wetlands ( SFCW ) Sewage intervention by and large involves three phases, called primary, secondary and third intervention. Primary intervention consists of temporarily keeping the sewerage in a quiescent basin where heavy solids can settle to the underside while oil, lubricating oil and lighter solids float to the surface. The settled and floating stuffs are removed and the staying liquid may be discharged or subjected to secondary intervention. Secondary intervention removes dissolved and suspended biological affair. Secondary intervention is typically performed by autochthonal, water-borne microorganisms in a managed home ground. Secondary intervention may necessitate a separation procedure to take the microorganisms from the treated H2O prior to dispatch or third intervention. Third intervention is sometimes defined as anything more than primary and secondary intervention in order to let rejection into a extremely sensitive or delicate ecosystem ( estuaries, low-flow rivers, coral reefs etc. ) . Treated H2O is sometimes disinfected chemically or physically ( for illustration, by lagunas and microfiltration ) prior to dispatch into a watercourse, river, bay, laguna or wetland, or it can be used for the irrigation of a golf class, green manner or park. If it is sufficiently clean, it can besides be used for groundwater recharge or agricultural intents. 2.2 PRE-TREATMENT Pre-treatment removes stuffs that can be easy collected from the natural waste H2O before they damage or clog the pumps and skimmers of primary intervention clarifiers ( rubbish, tree limbs, foliages, etc. ) . Screening The inflowing sewerage H2O is screened to take all big objects like tins, shreds, sticks, fictile packages etc. carried in the sewerage watercourse. This is most normally done with an automated automatically raked saloon screen in modern workss functioning big populations, whilst in smaller or less modern workss a manually cleaned screen may be used. The raking action of a mechanical saloon screen is typically paced harmonizing to the accretion on the saloon screens and/or flow rate. The solids are collected and subsequently disposed in a landfill or incinerated. Bar screens or mesh screens of changing sizes may be used to optimise solids remotion. If gross solids are non removed they become entrained in pipes and traveling parts of the intervention works and can do significant harm and inefficiency in the procedure. GRIT REMOVAL Pre-treatment may include a sand or grit channel or chamber where the speed of the entrance effluent is adjusted to let the colony of sand, grit, rocks, and broken glass. These atoms are removed because they may damage pumps and other equipment. For little healthful cloaca systems, the grit Chamberss may non be necessary, but grit remotion is desirable at larger workss. FAT AND GREASE REMOVAL In some larger workss, fat and lubricating oil is removed by go throughing the sewerage through a little armored combat vehicle where skimmers collect the fat natation on the surface. Air blowers in the base of the armored combat vehicle may besides be used to assist retrieve the fat as a foam. In most workss nevertheless, fat and lubricating oil remotion takes topographic point in the primary colony armored combat vehicle utilizing mechanical surface skimmers. 2.3 PRIMARY TREATMENT In the primary deposit phase, sewerage flows through big armored combat vehicles, normally called â€Å" primary clarifiers † or â€Å" primary deposit armored combat vehicles. † The armored combat vehicles are used to settle sludge while lubricating oil and oils rise to the surface and are skimmed off. Primary settling armored combat vehicles are normally equipped with automatically goaded scrapers that continually drive the gathered sludge towards a hopper in the base of the armored combat vehicle where it is pumped to sludge intervention installations. Grease and oil from the drifting stuff can sometimes be recovered for saponification. The dimensions of the armored combat vehicle should be designed to consequence remotion of a high per centum of the floatables and sludge. A typical deposit armored combat vehicle may take from 60 to 65 per centum of suspended solids, and from 30 to 35 per centum of biochemical O demand ( BOD ) from the sewerage. 2.4 SECONDARY TREATMENT Secondary intervention is designed to well degrade the biological content of the sewerage which are derived from human waste, nutrient waste, soaps and detergent. The bulk of municipal workss handle the settled sewerage spirits utilizing aerophilic biological procedures. To be effectual, the biology necessitate both O and nutrient to populate. The bacterium and Protozoa consume biodegradable soluble organic contaminations ( e.g. sugars, fats, organic short-chain C molecules, etc. ) and adhere much of the less soluble fractions into floc. Secondary intervention systems are classified as fixed-film or suspended-growth systems. Fixed-film or affiliated growing systems include dribbling filters and revolving biological contactors, where the biomass grows on media and the sewerage passes over its surface. Suspended-growth systems include activated sludge, where the biomass is assorted with the sewerage and can be operated in a smaller infinite than fixed-film systems that treat the same sum of H2O. However, fixed-film systems are more able to get by with drastic alterations in the sum of biological stuff and can supply higher remotion rates for organic stuff and suspended solids than suspended growing systems. [ 6 ] :11-13 Rough ining filters are intended to handle peculiarly strong or variable organic tonss, typically industrial, to let them to so be treated by conventional secondary intervention procedures. Features include filters filled with media to which effluent is applied. They are designed to let high hydraulic burden and a high degree of aeration. On larger installings, air is forced through the media utilizing blowers. The attendant effluent is normally within the normal scope for conventional intervention procedures. A generalised, conventional diagram of an activated sludge procedure. A filter removes a little per centum of the suspended organic affair, while the bulk of the organic affair undergoes a alteration of character, merely due to the biological oxidization and nitrification taking topographic point in the filter. With this aerophilic oxidization and nitrification, the organic solids are converted into coagulated suspended mass, which is heavier and bulkier, and can settle to the underside of a armored combat vehicle. The wastewater of the filter is hence passed through a deposit armored combat vehicle, called a secondary clarifier, secondary subsiding armored combat vehicle or humus armored combat vehicle. ACTIVATED SLUDGE In general, activated sludge workss encompass a assortment of mechanisms and procedures that use dissolved O to advance the growing of biological floc that well removes organic stuff. The procedure traps particulate stuff and can, under ideal conditions, convert ammonium hydroxide to nitrite and nitrate and finally to nitrogen gas. SURFACE-AERATED BASINS ( LAGOONS ) Many little municipal sewerage systems in the United States ( 1 million gal./day or less ) usage aerated lagunas. Most biological oxidization processes for handling industrial effluents have in common the usage of O ( or air ) and microbic action. Surface-aerated basins achieve 80 to 90 per centum remotion of BOD with keeping times of 1 to 10 yearss. The basins may run in deepness from 1.5 to 5.0 meters and utilize motor-driven aerators drifting on the surface of the effluent. In an aerated basin system, the aerators provide two maps: they transfer air into the basins required by the biological oxidization reactions, and they provide the commixture required for scattering the air and for reaching the reactants ( that is, O, effluent and bug ) . Typically, the drifting surface aerators are rated to present the sum of air tantamount to 1.8 to 2.7A kilograms O2/kWA ·h. However, they do non supply as good commixture as is usually achieved in activated sludge systems and hence aerated basins do non accomplish the same public presentation degree as activated sludge units. Biological oxidization procedures are sensitive to temperature and, between 0 A °C and 40 A °C, the rate of biological reactions increase with temperature. Most surface aerated vass operate at between 4 A °C and 32 A °C. CONSTRUCTED WETLANDS Constructed wetlands ( can either be surface flow or subsurface flow, horizontal or perpendicular flow ) , include engineered reedbeds and belong to the household of phytorestoration and ecotechnologies ; they provide a high grade of biological betterment and depending on design, act as a primary, secondary and sometimes third intervention, besides see phytoremediation. One illustration is a little reedbed used to clean the drainage from the elephants ‘ enclosure at Chester Zoo in England ; legion CWs are used to recycle the H2O of the metropolis of Honfleur in France and legion other towns in Europe, the US, Asia and Australia. They are known to be extremely productive systems as they copy natural wetlands, called the â€Å" Kidneys of the Earth † for their cardinal recycling capacity of the hydrological rhythm in the biosphere. Robust and dependable, their intervention capacities improve as clip spell by, at the antonym of conventional intervention workss whose machine ry age with clip. They are being progressively used, although equal and experient design are more cardinal than for other systems and infinite restriction may hinder their usage. FILTER BEDS ( OXIDIZING BEDS ) In older workss and those having variable burdens, dribbling filter beds are used where the settled sewerage spirits is spread onto the surface of a bed made up of coke ( carbonized coal ) , limestone french friess or specially fabricated fictile media. Such media must hold big surface countries to back up the biofilms that form. The spirits is typically distributed through perforated spray weaponries. The distributed spirits drips through the bed and is collected in drains at the base. These drains besides provide a beginning of air which percolates up through the bed, maintaining it aerophilic. Biological movies of bacteriums, Protozoa and fungi signifier on the media ‘s surfaces and eat or otherwise cut down the organic content. This biofilm is frequently grazed by insect larvae, snails, and worms which help keep an optimum thickness. Overloading of beds increases the thickness of the movie taking to clogging of the filter media and ponding on the surface. SOIL BIO-TECHNOLOGY A new procedure called Soil Bio-Technology ( SBT ) developed at IIT Bombay has shown enormous betterments in procedure efficiency enabling entire H2O reuse, due to highly low runing power demands of less than 50 Js per kilogram of treated H2O. Typically SBT systems can accomplish chemical O demand ( COD ) degrees less than 10A mg/L from sewerage input of COD 400A mg/L. SBT workss exhibit high decreases in COD values and bacterial counts as a consequence of the really high microbic densenesss available in the media. Unlike conventional intervention workss, SBT workss produce undistinguished sums of sludge, preventing the demand for sludge disposal countries that are required by other engineerings. BIOLOGICAL AERATED FILTERS Biological Aerated ( or Anoxic ) Filter ( BAF ) or Biofilters combine filtration with biological C decrease, nitrification or denitrification. BAF normally includes a reactor filled with a filter media. The media is either in suspension or supported by a crushed rock bed at the pes of the filter. The double intent of this media is to back up extremely active biomass that is attached to it and to filtrate suspended solids. Carbon decrease and ammonium hydroxide transition occurs in aerophilic manner and sometime achieved in a individual reactor while nitrate transition occurs in anoxic manner. BAF is operated either in upflow or downflow constellation depending on design specified by maker. Conventional diagram of a typical revolving biological contactor ( RBC ) . The treated wastewater clarifier/settler is non included in the diagram. ROTATING BIOLOGICAL CONTACTORS Revolving biological contactors ( RBCs ) are mechanical secondary intervention systems, which are robust and capable of defying rushs in organic burden. RBCs were foremost installed in Germany in 1960 and have since been developed and refined into a dependable operating unit. The revolving discs back up the growing of bacteriums and micro-organisms nowadays in the sewerage, which break down and brace organic pollutants. To be successful, micro-organisms need both O to populate and nutrient to turn. Oxygen is obtained from the ambiance as the discs rotate. As the micro-organisms grow, they build up on the media until they are sloughed off due to shear forces provided by the revolving phonograph record in the sewerage. Effluent from the RBC is so passed through concluding clarifiers where the microorganisms in suspension settee as a sludge. The sludge is withdrawn from the clarifier for farther intervention. A functionally similar biological filtering system has become popular as portion of place fish tank filtration and purification. The fish tank H2O is drawn up out of the armored combat vehicle and so cascaded over a freely whirling corrugated fiber-mesh wheel before go throughing through a media filter and back into the fish tank. The whirling mesh wheel develops a biofilm coating of micro-organisms that feed on the suspended wastes in the fish tank H2O and are besides exposed to the ambiance as the wheel rotates. This is particularly good at taking waste. MEMBRANE BIOREACTORS Membrane bioreactors ( MBR ) combine activated sludge intervention with a membrane liquid-solid separation procedure. The membrane constituent uses low force per unit area microfiltration or extremist filtration membranes and eliminates the demand for elucidation and third filtration. The membranes are typically immersed in the aeration armored combat vehicle ; nevertheless, some applications utilize a separate membrane armored combat vehicle. One of the cardinal benefits of an MBR system is that it efficaciously overcomes the restrictions associated with hapless subsiding of sludge in conventional activated sludge ( CAS ) processes. The engineering permits bioreactor operation with well higher assorted spirits suspended solids ( MLSS ) concentration than CAS systems, which are limited by sludge subsiding. The procedure is typically operated at MLSS in the scope of 8,000-12,000A mg/L, while CAS are operated in the scope of 2,000-3,000A mg/L. The elevated biomass concentration in the MBR procedure allows for really effectual remotion of both soluble and particulate biodegradable stuffs at higher burden rates. Therefore increased sludge keeping times, normally transcending 15 yearss, guarantee complete nitrification even in highly cold conditions. SECONDARY SEDIMENTATION The concluding measure in the secondary intervention phase is to settle out the biological floc or filter stuff through a secondary clarifier and to bring forth sewage H2O incorporating low degrees of organic stuff and suspended affair. TERTIARY TREATMENT The intent of third intervention is to supply a concluding intervention phase to raise the outflowing quality before it is discharged to the receiving environment ( sea, river, lake, land, etc. ) . More than one third intervention procedure may be used at any intervention works. If disinfection is practiced, it is ever the concluding procedure. It is besides called â€Å" outflowing shining. † Filtration Sand filtration removes much of the residuary suspended affair. Filtration over activated C, besides called C surface assimilation, removes residuary toxins. LAGOONING Lagooning provides colony and farther biological betterment through storage in big semisynthetic pools or lagunas. These lagunas are extremely aerophilic and colonisation by native macrophytes, particularly reeds, is frequently encouraged. Small filter feeding invertebrates such as Daphnia and species of Rotifera greatly assist in intervention by taking all right particulates. NUTRIENT REMOVAL Effluent may incorporate high degrees of the foods N and P. Excessive release to the environment can take to a physique up of foods, called eutrophication, which can in bend encourage the giantism of weeds, algae, and blue-green algaes ( bluish green algae ) . This may do an algal bloom, a rapid growing in the population of algae. The algae Numberss are unsustainable and finally most of them die. The decomposition of the algae by bacteriums uses up so much of O in the H2O that most or all of the animate beings die, which creates more organic affair for the bacteriums to break up. In add-on to doing deoxygenation, some algal species produce toxins that contaminate imbibing H2O supplies. Different intervention procedures are required to take N and P. NITROGEN REMOVAL The remotion of N is effected through the biological oxidization of N from ammonium hydroxide to nitrate ( nitrification ) , followed by denitrification, the decrease of nitrate to nitrogen gas. Nitrogen gas is released to the ambiance and therefore removed from the H2O. Nitrification itself is a two-step aerophilic procedure, each measure facilitated by a different type of bacteriums. The oxidization of ammonium hydroxide ( NH3 ) to nitrite ( NO2a?’ ) is most frequently facilitated by Nitrosomonas spp. ( nitroso mentioning to the formation of a nitroso functional group ) . Nitrite oxidization to nitrate ( NO3a?’ ) , though traditionally believed to be facilitated by Nitrobacter spp. ( nitro mentioning the formation of a nitro functional group ) , is now known to be facilitated in the environment about entirely by Nitrospira spp. Denitrification requires anoxic conditions to promote the appropriate biological communities to organize. It is facilitated by a broad diverseness of bacteriums. Sand filters, lagooning and reed beds can all be used to cut down N, but the activated sludge procedure ( if designed good ) can make the occupation the most easy. Since denitrification is the decrease of nitrate to dinitrogen gas, an negatron giver is needed. This can be, depending on the effluent, organic affair ( from fecal matters ) , sulfide, or an added giver like methyl alcohol. PHOSPHORUS REMOVAL Phosphorus remotion is of import as it is a confining food for algae growing in many fresh H2O systems. ( For a description of the negative effects of algae, see Nutrient remotion ) . It is besides peculiarly of import for H2O reuse systems where high P concentrations may take to fouling of downstream equipment such as rearward osmosis. Phosphorus can be removed biologically in a procedure called enhanced biological P remotion. In this procedure, specific bacterium, called polyphosphate roll uping beings ( PAOs ) , are selectively enriched and roll up big measures of P within their cells ( up to 20 per centum of their mass ) . When the biomass enriched in these bacteriums is separated from the treated H2O, these biosolids have a high fertiliser value. Phosphorus remotion can besides be achieved by chemical precipitation, normally with salts of Fe ( e.g. ferrous chloride ) , aluminium ( e.g. alum ) , or lime. This may take to inordinate sludge production as hydrated oxides precipitates and the added chemicals can be expensive. Chemical P remotion requires significantly smaller equipment footmark than biological remotion, is easier to run and is frequently more dependable than biological P removalA . Another method for P remotion is to utilize farinaceous laterite. Once removed, P, in the signifier of a phosphate-rich sludge, may be stored in a land fill or resold for usage in fertiliser. Disinfection The intent of disinfection in the intervention of waste H2O is to well cut down the figure of micro-organisms in the H2O to be discharged back into the environment. The effectivity of disinfection depends on the quality of the H2O being treated ( e.g. , cloud cover, pH, etc. ) , the type of disinfection being used, the bactericidal dose ( concentration and clip ) , and other environmental variables. Cloudy H2O will be treated less successfully, since solid affair can screen organisms, particularly from ultraviolet visible radiation or if contact times are low. By and large, short contact times, low doses and high flows all militate against effectual disinfection. Common methods of disinfection include ozone, Cl, ultraviolet visible radiation, or Na hypochlorite. Chloramine, which is used for imbibing H2O, is non used in waste H2O intervention because of its continuity. Chlorination remains the most common signifier of waste H2O disinfection in North America due to its low cost and long-run history of effectivity. One disadvantage is that chlorination of residuary organic stuff can bring forth chlorinated-organic compounds that may be carcinogenic or harmful to the environment. Residual Cl or chloramines may besides be capable of chlorinating organic stuff in the natural aquatic environment. Further, because residuary Cl is toxic to aquatic species, the treated wastewater must besides be chemically dechlorinated, adding to the complexness and cost of intervention. Ultraviolet ( UV ) light can be used alternatively of Cl, I, or other chemicals. Because no chemicals are used, the treated H2O has no inauspicious consequence on beings that subsequently devour it, as may be the instance with other methods. UV radiation causes harm to the familial construction of bacteriums, viruses, and other pathogens, doing them incapable of reproduction. The cardinal disadvantages of UV disinfection are the demand for frequent lamp care and replacing and the demand for a extremely treated wastewater to guarantee that the mark micro-organisms are non shielded from the UV radiation ( i.e. , any solids nowadays in the treated wastewater may protect micro-organisms from the UV visible radiation ) . In the United Kingdom, UV visible radiation is going the most common agencies of disinfection because of the concerns about the impacts of Cl in chlorinating residuary organics in the effluent and in chlorinating organics in the receiving H2O. Some sewerage intervention s ystems in Canada and the US besides use UV visible radiation for their outflowing H2O disinfection. Ozone ( O3 ) is generated by go throughing O ( O2 ) through a high electromotive force possible resulting in a 3rd O atom going attached and organizing O3. Ozone is really unstable and reactive and oxidizes most organic stuff it comes in contact with, thereby destructing many infective micro-organisms. Ozone is considered to be safer than Cl because, unlike Cl which has to be stored on site ( extremely toxicant in the event of an inadvertent release ) , ozone is generated onsite as needed. Ozonation besides produces fewer disinfection byproducts than chlorination. A disadvantage of ozone disinfection is the high cost of the ozone coevals equipment and the demands for particular operators. ODOUR CONTROL Smells emitted by sewerage intervention are typically an indicant of an anaerobic or â€Å" infected † status. Early phases of processing will be given to bring forth fetid gases, with H sulphide being most common in bring forthing ailments. Large procedure workss in urban countries will frequently handle the smells with C reactors, a contact media with bio-slimes, little doses of Cl, or go arounding fluids to biologically capture and metabolise the objectionable gases. Other methods of odour control exist, including add-on of Fe salts, H peroxide, Ca nitrate, etc. to pull off H sulphide degrees. Package Plants AND BATCH REACTORS To utilize less infinite, dainty hard waste and intermittent flows, a figure of designs of intercrossed intervention workss have been produced. Such workss frequently combine at least two phases of the three chief intervention phases into one combined phase. In the UK, where a big figure of effluent intervention workss serve little populations, bundle workss are a feasible option to constructing a big construction for each procedure phase. In the US, bundle workss are typically used in rural countries, main road remainder Michigans and dawdler Parkss. One type of system that combines secondary intervention and colony is the sequencing batch reactor ( SBR ) . Typically, activated sludge is assorted with natural entrance sewerage, and so assorted and aerated. The settled sludge is run away and re-aerated before a proportion is returned to the headworks. SBR workss are now being deployed in many parts of the universe. The disadvantage of the SBR procedure is that it requires a precise control of timing, blending and aeration. This preciseness is typically achieved with computing machine controls linked to detectors. Such a complex, delicate system is unsuited to topographic points where controls may be undependable, ill maintained, or where the power supply may be intermittent. Extended aeration bundle workss use separate basins for aeration and subsiding, and are slightly larger than SBR workss with decreased timing sensitiveness. Package workss may be referred to every bit high charged or low charged. This refers to the manner the biological burden is processed. In high charged systems, the biological phase is presented with a high organic burden and the combined floc and organic stuff is so oxygenated for a few hours before being charged once more with a new burden. In the low charged system the biological phase contains a low organic burden and is combined with flocculate for longer times. SLUDGE TREATMENT AND DISPOSAL The sludges accumulated in a effluent intervention procedure must be treated and disposed of in a safe and effectual mode. The intent of digestion is to cut down the sum of organic affair and the figure of disease-causing micro-organisms present in the solids. The most common intervention options include anaerobiotic digestion, aerophilic digestion, and composting. Incineration is besides used albeit to a much lesser grade. Sludge intervention depends on the sum of solids generated and other site-specific conditions. Composting is most frequently applied to small-scale workss with aerophilic digestion for mid sized operations, and anaerobiotic digestion for the larger-scale operations. ANAEROBIC DIGESTION Anaerobic digestion is a bacterial procedure that is carried out in the absence of O. The procedure can either be thermophilic digestion, in which sludge is fermented in armored combat vehicles at a temperature of 55A °C, or mesophilic, at a temperature of around 36A °C. Though leting shorter keeping clip ( and therefore smaller armored combat vehicles ) , thermophilic digestion is more expensive in footings of energy ingestion for heating the sludge. Anaerobic digestion is the most common ( mesophilic ) intervention of domestic sewerage in infected armored combat vehicles, which usually retain the sewerage from one twenty-four hours to two yearss, cut downing the BOD by approximately 35 to 40 per centum. This decrease can be increased with a combination of anaerobiotic and aerophilic intervention by put ining Aerobic Treatment Units ( ATUs ) in the infected armored combat vehicle. One major characteristic of anaerobiotic digestion is the production of biogas ( with the most utile constituent being methane ) , which can be used in generators for electricity production and/or in boilers for warming intents. AEROBIC DIGESTION Aerobic digestion is a bacterial procedure happening in the presence of O. Under aerophilic conditions, bacteriums quickly consume organic affair and change over it into C dioxide. The operating costs used to be characteristically much greater for aerophilic digestion because of the energy used by the blowers, pumps and motors needed to add O to the procedure. Aerobic digestion can besides be achieved by utilizing diffuser systems or jet aerators to oxidise the sludge. COMPOSTING Composting is besides an aerophilic procedure that involves blending the sludge with beginnings of C such as sawdust, straw or wood french friess. In the presence of O, bacterium digest both the effluent solids and the added C beginning and, in making so, produce a big sum of heat. Incineration Incineration of sludge is less common because of air emanations concerns and the auxiliary fuel ( typically natural gases or fuel oil ) required to fire the low calorific value sludge and zap residuary H2O. Stepped multiple fireplace incinerators with high abode clip and fluidized bed incinerators are the most common systems used to burn effluent sludge. Co-firing in municipal waste-to-energy workss is on occasion done, this option being less expensive presuming the installations already exist for solid waste and there is no demand for subsidiary fuel. Chapter THREE TERTIARY TREATMENT 3.1 SLUDGE DISPOSAL When a liquid sludge is produced, farther intervention may be required to do it suited for concluding disposal. Typically, sludges are thickened ( dewatered ) to cut down the volumes transported off-site for disposal. There is no procedure which wholly eliminates the demand to dispose of biosolids. There is, nevertheless, an extra measure some metropoliss are taking to superheat sludge and change over it into little pelletized granules that are high in N and other organic stuffs. In New York City, for illustration, several sewerage intervention workss have dewatering installations that use big extractors along with the add-on of chemicals such as polymer to farther take liquid from the sludge. The removed fluid, called centrate, is typically reintroduced into the effluent procedure. The merchandise which is left is called â€Å" bar † and that is picked up by companies which turn it into fertilizer pellets. This merchandise is so sold to local husbandmans and sod farms as a di rt amendment or fertiliser, cut downing the sum of infinite required to dispose of sludge in landfills. Much sludge arising from commercial or industrial countries is contaminated with toxic stuffs that are released into the cloacas from the industrial procedures. Elevated concentrations of such stuffs may do the sludge unsuitable for agricultural usage and it may so hold to be incinerated or disposed of to landfill. 3.2 TREATMENT IN THE RECEIVING ENVIRONMENT Many procedures in a effluent intervention works are designed to mime the natural intervention processes that occur in the environment, whether that environment is a natural H2O organic structure or the land. If non overloaded, bacteriums in the environment will devour organic contaminations, although this will cut down the degrees of O in the H2O and may significantly alter the overall ecology of the receiving H2O. Native bacterial populations feed on the organic contaminations, and the Numberss of disease-causing micro-organisms are reduced by natural environmental conditions such as predation or exposure to ultraviolet radiation. Consequently, in instances where the receiving environment provides a high degree of dilution, a high grade of effluent intervention may non be required. However, recent grounds has demonstrated that really low degrees of specific contaminations in effluent, including endocrines ( from animate being farming and residue from human hormonal contraceptive me thod methods ) and man-made stuffs such as phthalates that mimic endocrines in their action, can hold an unpredictable inauspicious impact on the natural biology and potentially on worlds if the H2O is re-used for imbibing H2O. [ 21 ] In the US and EU, uncontrolled discharges of effluent to the environment are non permitted under jurisprudence, and rigorous H2O quality demands are to be met. ( For demands in the US, see Clean Water Act. ) A important menace in the coming decennaries will be the increasing uncontrolled discharges of effluent within quickly developing states. 3.3 SEWAGE TREATMENT IN DEVELOPING COUNTRIES Few dependable figures on the portion of the effluent collected in cloacas that is being treated in the universe exist. In many developing states the majority of domestic and industrial effluent is discharged without any intervention or after primary intervention merely. In Latin America about 15 % of gathered effluent base on ballss through intervention workss ( with varying degrees of existent intervention ) . In Venezuela, a below mean state in South America with regard to wastewater intervention, 97 per centum of the state ‘s sewerage is discharged natural into the environment. In a comparatively developed Middle Eastern state such as Iran, Tehran ‘s bulk of population has wholly untreated sewerage injected to the metropolis ‘s groundwater. However now the building of major parts of the sewerage system, aggregation and intervention, in Tehran is about complete, and under development, due to be to the full completed by the terminal of 2012. In Israel, approximately 50 per centum of agricultural H2O use ( entire usage was 1 billion three-dimensional meters in 2008 ) is provided through reclaimed cloaca H2O. Future programs call for increased usage of treated cloaca H2O every bit good as more desalinization workss.

Human rights Research Paper Example | Topics and Well Written Essays - 3500 words

Human rights - Research Paper Example The current international human rights paradigm emerges from the Universal Declaration of Human Rights of 1948. This supra-national charter focused on the specific principles and goals of international human rights legislation and has served to guide the behavior of nations. (Beitz, 2009) The Declaration lays out the structure of rights system and describes the mechanisms that must exist within institutions. What this means is that a legal system can be understood as a control system which is instrumental in controlling and regulating the actions of its individuals. Yet, there is also an urgent necessity to restrain government in its wielding of power to avoid civil liberty and human rights abuses (Glendon, 2001). Therefore, a mechanism must exist to ensure proper redress within an institution or society to protect this vital but delicate balance. Examples of the fragility of this balance are plentiful. While many societies will agree that for instance freedom of assembly is guarante ed in many situations the government and police have failed to protect this right.