Thursday, September 19, 2019

Truth and Hypocrisy in Animal Farm and The Scarlet Letter :: essays research papers fc

Truth and Hypocrisy In Animal Farm and The Scarlet Letter   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Lies are often distorted into truth by those in power, who eventually become hypocrites as they continue to delude for selfish gain. In the process of this distortion, they will do everything possible to conceal and maintain their hunger for dominance and deference. This theme of truth ( or lack thereof ) and ultimate hypocrisy is skillfully shown through Napoleon in George Orwell’s Animal Farm, and Reverend Dimmesdale in Nathaniel Hawthorne’s The Scarlet Letter.   Ã‚  Ã‚  Ã‚  Ã‚  One of the most notable characteristics shared by Napoleon and Reverend Dimmesdale is their ability to skillfully twist lies into the truth. In Animal Farm, Napoleon is relentless in his deception of the other animals. According to Graham Greene ( Bloom, 1996, 21), he is a â€Å"consummate powermonger† who can skillfully undermine any idea that isn’t his own. The first signs of his dishonesty are shown when he hoards the milk and apples, with a message to the others that â€Å" It is for your sake that we drink that milk and eat those apples.† ( Orwell, 52 ) From there, the lies only increase in frequency and size. It’s easy to compare this to the deceptive nature of Reverend Arthur Dimmesdale of The Scarlet Letter. The young minister veils his sin from his Puritanical community by â€Å"cultivating an image that is far from the real truth.† ( Johnson, 14) From the revelation of Hester’s scarlet letter to that of his own, Dimmesdale conceals his shame by portraying himself as a â€Å"miracle of holiness†. ( Hawthorne, 139) Thus, both Napoleon and the minister share the negative attribute of fraudulence throughout their respective novels.   Ã‚  Ã‚  Ã‚  Ã‚  Another notable comparison between the two novels is that both Napoleon and Dimmesdale lie for ambition. This is distinctly observable in Animal Farm, where the pigs take the immediate initiative to establish themselves as the leaders. Napoleon is instantly placed as a head, being the only Berkshire boar on the farm that has â€Å" a reputation for getting his own way.† ( Orwell, 35 ) From the moment the animals beat Jones out of the farm, it’s obvious that Napoleon is shrewdly planning to fill the farmer’s position. He envisions plans that will benefit only himself, yet â€Å"make him appear to be working for everyone’s advantage.† ( Allen, 37 ) Thus, he will rise in the animals’ eyes as a caring and considerate leader. This is exemplified by his

Wednesday, September 18, 2019

Personal Narrative - Slumber Party :: Personal Narrative Essays

Personal Narrative -Slumber Party Thump-thump, breathe thump-thump, breath. My heart beat as if it was pounding out through my brain; I tried to catch my breath. I heard footsteps coming up behind me like an elephant chasing at my heels. A scream pierced my ears and echoed many times in my mind. My thoughts raced from one thing to another. After locking the door, the four of us clinched in a corner for nearly an hour. My day had begun normal. I remember I woke up, went to school and found myself with my friends that afternoon. My company was five of my closest pals; Becky, Alex, Meredith, Lee, and my boyfriend Cody. We all had hung out many times before and knew each other well. For most of the evening, we sat around telling horror stories and gossiping about classmates. Time passed quickly and soon, it was time to head home. The girls were all planning a slumber party at Becky's. Her parents had gone out of town for the weekend, and she was not willing to stay alone. We began our evening of leisure by getting into our P.J s, and returning to our scary stories. Before realizing it, another hour had passed. All the stories must have gotten to us because before we went upstairs we made sure every light was on in the house. The hair on the back of my neck began to rise as we listened to the cold aching silence. In the distance we listened to three loud car horns and a door slam. We, then, jumped away from the window and started down the stairs. Half way down the stairs, we stopped dead in our tracks. The roof began to rattle as if someone was climbing across it. Our pulses raced as we flew down the remainder of the stairs. Thump-thump, breath. We huddled together in the kitchen. For our safety, we gathered a sharp knife and a phone. We came up with explanations to relieve our minds deciding that the horn was a neighbor and the thump on the roof was the cat. Calming our thoughts down, we relaxed into a group, sitting on the counter. We laughed at the fools we had been, and grew quiet as we heard several car doors slamming, again. Silently staring at one another our eyes grew wide as we hesitated to jump. Alex tried to explain "It's just the neighbors.

Tuesday, September 17, 2019

Causes of WWI Essay

Wars are large and complicated affairs. The first word war was the product of many, many things. Although the war officially began on July 28th, 1914, it had been building up for a while. The beginning of the war was much like a domino affect. It started when Austria-Hungary declared war on Serbia. On July 29, Russia ordered a mobilization only against Austria-Hungary in support of Serbia. The Germans threatened war on July 31 if the Russians did not demobilize. France then mobilized. On August 1, Germany declared war on Russia, and two days later, on France. The German invasion of Belgium to attack France, which violated Belgium’s official neutrality, prompted Britain to declare war on Germany. World War I had begun. Nationalism, militarism, and imperialism all prompted the rivalry between nations which led to WWI. Nationalism, the love and support of one’s country, has always existed. At this time, however, it was so prominent, it helped cause the first world war. Since so much pride was devoted to countries, it made the possibilities of peace between past rivals less probable. People felt great loyalty and were willing to do anything for their country. In history, many wars have been over territorial disputes. A country feels nationalistic, and people’s pride leads to people wanting to expand with more land. A country can feel so strongly about this, that they will fight for it. The spark of the world was the assassination of the Archduke Francis Ferdinand and his wife. They were shot by a Serbian nationalist because of the crisis in the Balkans. The Balkan Peninsula was a mountainous area below Austira-Hungary and consisted of many different ethnic groups. Each group was very nationalistic and wanted to extend its borders, especially Serbia. Austria-Hungary took over two Balkan Slavic areas. Document 6 describes the tension in this region at the time. Serbia did not want Austria-Hungary to have Bosnia and Herzegovina. The archduke was shot because the Serbians feared that when he became in power he would continue to persecute the Serbs who lived in the Austro-Hungarian borders. The assassination, however, only created more problems. A harsh ultimatum was given to Serbia and when Serbia tried to negotiate that harsh terms, war was declared upon them. Serbia’s ally, Russia joined right in the war, and soon after many other European countries. Nationalism was also a contributing factor to the alliance  system. A country having more people on its side meant they felt more powerful, and more nationalistic. During World War I there were two alliance systems; the Triple Alliance and the Triple Entente. The Triple Alliance included Germany, Austria-Hungary, and Italy. The Triple Entente included Great, Britain, France, and Russia. Later on in the war, the United States entered the war on the Triple Entente side, and Russia left. Members of the Triple Alliance were also known as the Central Powers. This is because the three countries were grouped together in the center of Europe. On each side of them, they has enemies, which is why this was a two-front war. This is shown on document 2’s map. Germany’s Schlieffen Plan was a plan to have a large part of the German army go west to fight France, and then go east to fight Russia. Nationalism is what made Great Britain join the war. Under the Schliefeen Plan, German troops invaded Belgium (a neutral country) because they refused to let the Germans pass through on their way to France. Great Britain was closely tied with Belgium so after the Germans attacked Belgium, Great Britain declared war on Germany. Although not the only cause of the large, complex war, Nationalism was the cause of many of the other causes. In many ways Nationalism can be a positive thing. It can improve economy by increasing competition and devotion and make a country more prosperous. Theses feelings created by nationalism can go to far. Nationalis m can also cause rivalry, feelings of superiority, and competition can lead to aggressiveness which leads to wars. Around 9 million people died in World War One. Tension between countries led to a arms race in Europe. Countries were over nationalistic and felt that having a large army made them more powerful. Glorifying military power and having an strong army is known as militarism. When a country has a strong army who is ready to fight, they are more likely to use war as a way of getting what they want. The main countries who participated in WWI all had significant increases in the amount of money they spent on weapons. Germany increased its per capitata expenditures on armaments from $1.28 in 1870, to $8.19 in 1914 (document 1). Propaganda, a way of persuading people to think one way, was used to keep up morale and support for the war. Posters like the one shown in document 5 was used to recruit soldiers for battle. People felt patriotic when they went to fight in the war. Countries competed to  have the largest militaries, and the best weapons. Militarism at this time led to the creation of many new weapons. Fritz Harber invented a method of using nitrogen from the air. It was used to create one of the worst weapons of the time, poison gas. The machine gun was also a new weapon of the time. It fired ammunition automatically and was extremely deadly because it was quick and easy. Other weapons of war included the tank, the airplane and the submarine. Submarines were used in unrestricted warfare and fired torpedoes. Militarism is why the war was so deadly. It caused rivalry between nations. Kaiser Wilhelm II of Germany envied Britain for having such a strong navy so he increased the German navy and built many warships. Britain responded by increasing its navy and building more warships too. Things like this started the arms race and created even more competition between countries and alliances. Leaders looked at militarism and saw war as the only way to solve problems, which is not true at all. Another factor which contributed to the increase in rivalry in Europe was imperialism. Great Britain, Germany and France needed foreign markets after the increase in manufacturing caused by the Industrial Revolution. These countries competed for economic expansion in Africa. Africa between 1880 and 1914 was split up between Britain, France, Germany, Italy and several other nations (document 4). Long before the war there was competition between these countries for resources, land, and markets. Each country wanted to be the most powerful and felt that they could do this by obtaining as much land and wealth as possible. Many forms of imperialism were used to do this with. Germany and France disputed over who would control Morocco a couple times, so the mistrust between these countries was already at a high level. Before the war, grudges had already been formed. Document 8 describes the tension and the trouble spots prior the WWI. The reason why the became and world war so quickly was because of all the factors that were already in place. Mainly rivalry, which imperialism contributed to greatly. World War One was ended with the Treaty of Versailles. The treaty was intended to make peace between the countries. The treaty was unfair and created with revenge in mind. It made Germany pay $33 billion in reparations and forced them to accept war guilt. Adolph Hitler himself was a product of  the First World War. In many ways, the end of World War I was the cause of World War II.

Monday, September 16, 2019

Greatest Chinese Inventions

The Greatest Chinese Inventions Gene R. Kelsey Strayer University The ancient Chinese culture produced major inventions that some of which still are relevant and useful to our modern culture all over world even today. When an Italian merchant named Marco Polo traveled to China in during the Song Dynasty in 1271 he discovered a place so technologically advanced far greater than any Western European nation of its time. The following is a listing of 9 important inventions instrumental to our growth as modern Human Beings.It would be a technical pilgrimage for me to win this contest. I would love to visit China. (1) The Process of Paper making. Although first used as wrapping and padding for over 100 years before it became a medium for writing upon around AD 105. Paper along with printing changed the way the world documented everything from history to science and many years later paper currency. Even though our modern culture is moving away from paper it will always be used in one form o r another. There is no such thing as electronic toilet paper. 2) The invention of the printing press with moveable text symbols by Bi Sheng. It was this invention that was eventually taken over to the West and used by Gutenberg for the printing of the Bible. Needless to say, this had a profound effect on the nature of knowledge and the development of literature, (The Franklin Institute). (3) Gun Powder and Fireworks. The use of gunpowder in weapons gave those with access to the technology a greater ability to protect themselves from enemies or to conquer and control others. It greatly affected the balance of power in many parts of the world.Whether we agree or not the invention of Gun Powder and the weapons that followed were huge game changers for Humanity. (4) The Compass which was really pre-dated by the discovery of magnetism by the Chinese which was first noted in a book from the Song Dynasty. However, the first suspended magnetic needle compass was written of by Shen Kuo in hi s book of AD 1088. The wet Compass was the most used. Eventually the Dry Compass took shape but was not as well accepted by the Chinese. (The Science Forum 2007) (5) The Great Wall of China. One of the wonders of the world its construction began in 221 BC in an effort to keep Mongol invaders out. The Sui Emperor Yang Di began the reconstruction and repairs of the wall around the 600’s AD. Hundreds of thousands of laborers were used to do the work. As some perished they were buried where they fell and remain in the wall. It is the biggest man made structure on earth and is said to be the only one visible from space. However, upon going to the NASA web site (www. nasa. gov/vision/space/workinginspace/great_wall. html) you will find some contradiction to that story.Only from low level orbit can it be made out to the unaided eye. (6) Cast Iron. In the 4th century BCE due to the prior discovery of refractory clays to allow for construction of a blast furnace that could handle the heat required to melt down iron the Chinese were able to pour and mold cast iron. That along with the use of phosphorus to reduce the heat required using coal as the fuel. With the development of annealing ploughshares, longer swords, and buildings were also using iron in their construction. (Asiasociety. Org). (7) Row Crop Planting 6th Century BC. 200 years before the western world adapted this practice the Chinese were growing stronger crops much faster than previously done by planting in rows. This process allows for greater access to the plant for watering, weeding, and harvesting along with greater protection for the plant from the elements. This practice is still used today as it still remains the perfect way to grow and harvest. (8) Deep Drilling. Around the 1st Century BC the technology to drill deep bore holes using equipment that would be recognizable today.They used Derricks that towered has high as 180 feet and could reach depths of 4800 feet. They captured natural gas i n bamboo tubes to use as fuel for evaporating water by boiling brine to produce salt. There is also evidence that they may have burned it in lanterns for light. It wasn’t until the 1800’s before western nations adapted the use of deep drilling. (9) Porcelain. To this day Chinese porcelain is prized by all cultures. The process of using materials such as glass and mineral compounds in a kiln at high heat. Invented during the Sui Dynasty and perfected in the Tang Dynasty most notably by Tao-yue (c. 08 – c. 678). By the time the Sung Dynasty it reached its peak around the 10th century. It wasn’t until over 500 years later the monopoly was broken by a German Physicist Tschirnhausen who invented European porcelain. Generally speaking most scholars believe the 1st four I have in order are the most important contributions to humanity. Although the greatest written works of man may have eventually reached the pages of a book using other materials other than paper . And printing hadn’t been created when it was following paper by the Chinese.Take the time to consider the Chinese were hundreds of years or more ahead of the west so think how many works would have been lost if man continued to carve in wood and write on cloth. And of course Gun Powder which led to fireworks and firearms. And lastly the compass so one can find their way home at the end of the fireworks show. I think the greatest invention from the Chinese is their diverse culture. China is one of the four ancient civilizations (alongside Babylon, India, and Egypt) with 3600 years of written history. Out of the nine I have chosen Cast Iron which eventually became steel as something I couldn’t live without as I do.The Chinese invented the process but it wasn’t perfected until a British inventor names Henry Bessemer mass produced it in his facility in Sheffield, England in 1856. Steel is still produced using the process of blowing air through molten pig iron to o xidize the material to separate the impurities. Why would I choose cast iron and steel? All my life I have worked with iron and steel. I build cars and restore them by welding in new metal where old has rusted away. I build iron gates and art work with iron and steel. I have my work adorning many friends and family’s homes.The art of blacksmithing holds great interest for me. What other material on earth is so strong yet can be heated and molded into any shape. While doing research for this paper I ran into some of the writings of Shen Kuo. We have been studying the Renaissance of Italy. Shen Kuo was the Leonardo da Vinci of China. He was a mathematician, astronomer, meteorologist, geologist, zoologist, botanist, pharmacologist, agronomist, archeologist, ethnographer, cartographer, encyclopedias, general, diplomat, hydraulic engineer, inventor, academy chancellor, finance minister and it goes on.In the Song Dynasty he was the head of the bureau of astronomy in the Song court. One of the greatest Western sinologists of this century, Joseph Needham wrote â€Å"The Science and Civilization in China†. This Book is now one of the main references about Shen Kuo’s work in a western language. What this tells me is that genius is not limited to the west or east. The Renaissance was not limited to the west. Great minds are of the nature of the human race. They don’t come around that often. But every century has had a few of them since the eginning of man. And China has had their fair share dating back to the origin of what is China! References Secrets of Lost Empires (The Science Forum 2007) Bodde, Derk (1991). Chinese Thought, Society, and Science. On Shen Kuo. The Needham Research Institute (NRI), home of the Science and Civilization in China project. (www. nasa. gov/vision/space/workinginspace/great_wall. html) (The Franklin Institute, 2012). The Humanities: Culture, Continuity, & Change: Volume 1 Second edition.

Sunday, September 15, 2019

Alternative Method for Onsite Sewage Disposal

WASTEWATER TREATMENT PLANT DESIGN Term Paper 1 ALTERNATIVE METHOD FOR ONSITE SEWAGE DISPOSAL (29 Pages) March 2nd, 2012 TABLE OF CONTENTS 1. INTRODUCTION3 2. INFORMATION4 3. 1 Soil Absorption System in a septic tank4 3. 2 Soil Failures6 3. 3 Soils7 3. ALTERNATIVE METHODS FOR ONSITE TREATMENTS 8 AND SYSTEMS OF DISPOSALS 4. 4 Alternative method for soil treatment and disposal systems8 4. 5 Alternative treatment devices13 4. 6 In-house alteration of wastewater16 4. REGULATION OF ALTERNATIVE ONSITE SYSTEMS21 5. CONCLUSION22 6. 7 Funding of existing state onsite programs22 6. Operation and maintenance22 6. 9 Failing systems23 6. 10 Water Conservation24 References25 List of Figures26 1. 0 INTRODCUTION Nearly 30% of the homes in the United States of America depend on onsite wastewater treatment and disposal. This percentage remained constant for the last two decades and is also estimated to be constant in the coming future. It is estimated that up to one half of the septic tanks do not perf orm perfectly or may even fail even before their expected life. The risk of contamination of ground water and surface water quality increases with the failing of an onsite system.These result in degradation of water quality, health hazards, outbreak of diseases and lowered property values. Nationally septic tank leachate is the most frequently reported cause for the contamination of the ground water and consumption of contaminated ground water is responsible for over 50% of all reported outbreaks of waterborne diseases. Lack of affordable and effective onsite sewage disposal is a national issue. Less than 35% of the land in the United States of America is suitable for conventional septic tank soil absorption systems.These limitations and requirements have resulted in developing many alternatives for onsite technologies. This study discusses recent research on alternative onsite technologies. 2. INFORMATION 2. 1 Soil Absorption System in a Septic Tank The soil absorption system in a septic tank is one of the most common treatment systems onsite. This soil absorption system consists of a septic tank, a water tight container which is usually large, and a field of soil absorption. It also contains a series of perforated pipes that are buried in the soil. This system performs two functions, the treatment of wastewater and the disposal.The septic tank provides biological treatment by removing large solids and greases. Further treatment followed by the final disposal is provided by the soil absorption field. A septic tank is made up of a large container which is water tight (usually 1000gal). This container is generally buried slightly below the ground and also adjacent to the building to which it is serving. The greases and fats are collected in a layer on the upper liquid surface whereas the solids settle to the bottom of the tank. For the liquid to be discharged from the layers between the solids and the scum, an outlet is constructed in the septic tank.For approx imately every three years, the solids and scum are pumped from the tank. The treatment or stabilization of contaminants in the wastewater are treated by anaerobic microorganisms. This process occurs in the absence of O2. The soil absorption field consists of a series of pipes. These pipes are placed in trenches which are usually 2 to 3 feet wide and 2 to 4 feet deep. These pipes are perforated. The pipes are placed in Gravel and it is covered with top soil. The effluent from the septic tank first flows down to the pipes, then out of the perforations and finally is absorbed by the adjacent soil.The microorganisms in the soil below the trenches absorb and treat the organic material in the effluent. This treated water percolates into ground water or may also evaporate. 2. 2 FAILURES The main causes for the failure of the system are * The water table being very high. * The surrounding soil being impermeable. * Improper Construction * Lacking in maintenance of the tank. The failed system can usually be defined as * When sewage effluent is collected on the surface of the ground. * When the wastewater is no longer being evacuated by the toilets or drainage systems.Main Causes for these types of Failures * Clogging of the Soil under the system * The rising of the water table to very close of the distribution trenches. * The soil being impermeable. The Clogging of the soil is being considered as the unavoidable occurrence for a soil absorption system over a period. The design of the system, the maintenance of the tank, and the characteristics and amount of wastewater being treated greatly influence the rate of clogging. The immediate clogging of the soil is also occurred when proper pumping of the septic tank is neglected.If the soil under the field of soil absorption is too permeable, even then the system failures occur. If this happens then the effluent directly enters the ground water without proper treatment in the soil. In this case it becomes more difficult to id entify, as there are no problems that can be found out or noticed in the disposal system. A sample of ground water may be taken to detect such failures. 2. 3 SOILS The ultimate disposal of the liquid part of the wastes treatment process depends mainly on soil for all onsite systems. The soil also provides the ultimate treatment in most of the onsite systems.The wastewater is made free of contaminant particles when the contaminants pass through soil by contact with the aerobic microorganisms and also absorption to soil particles. The pathogens and contaminants are completely removed from the wastewater if it travels slowly through 2 to 4 feet of unsaturated soil. If at all the wastewater is travelled quickly the treatment is not done completely and resulting in the contamination of the underground water. Even if the wastewater travels too slowly the saturation of the soil takes place aerobic treatment will also not take place.The time at which the wastewater is to be passed should be determined by the soil permeability. It is mainly affected by texture and structure of the soil. The texture of the soil means the physical nature of the soil with respect to portions of sand, silt and clay. The travelling of the water depends on the particle size of the soil. It travels quickly through the coarse soil and slowly in clayey soils. Soils whose structure is stable will allow more water to pass through than that of those soils whose structure is unstable.The kind of soil absorption system that has to be determined is mainly based on the characteristics of the soil. 3. 0 ALTERNATIVE METHODS FOR ONSITE TREATMENTS AND SYSTEMS OF DISPOSALS The conventional septic tank absorption system is used in less than 35% of the land in the United States of America. There are some areas that are not suitable for the conventional absorption system because of the soil. For the past several years alternative methods to the conventional method of absorption system have been provided to de velop effective sewage treatment to those soils which were formerly not suitable.Most of the alternative methods are still in the experimental stage. This chapter describes the ongoing status of the research being carried out on a number of alternative methods to the conventional septic tank-soil absorption system. The alternative systems for the soil absorption system are divided into three groups * Alternative method for soil treatment and disposal systems * Alternative treatment devices * Alteration of wastewater in-house 3. 1 ALTERNATIVE METHOD FOR SOIL TREATMENT AND DISPOSAL SYSTEMS The main factor in identifying the onsite sewage treatment and disposal systems is the soil.For this reason, the research has been primarily focused mainly on developing alternative soil absorption methods. Five alternatives to the standard soil absorption field are described here. Of which three of them are the alternative methods of distributing effluent to standard soil absorption field, a mound or fill system, and an evapotranspiration system. Soil Clogging over time is an unavoidable occurrence for soil absorption systems. This problem is caused by the manner in which effluent Is delivered to the system.The flows occur to a soil absorption field when the effluent is displaced from a septic tank by a water use event in the household. Such low volumes and irregular waste utilize only a small portion of the disposal trench area on all times. These cause clogging, progressive creeping failure and localized overloading. The following figure illustrates how the progressive failure reaches a state of equilibrium along the entire absorption field with respect to the time. To provide more uniform application of effluent over the complete trench area two systems have been developed. The two systems are Dosing system and Pressure Distribution systems.DOSING SYSTEMS The dosing systems are present in the dosing tank. These dosing systems store the pretreated effluent and apply large d oses to the soil absorption field by gravity, siphon or pump at regular intervals of time. The surface of the soil is returned to an unsaturated condition by allowing the system to drain. The soil type determines the frequency of dosing. It usually ranges from one to four doses per day. EALUATION: The specific cause for soil clogging is not well understood, and some question still exists whether dosing is effective or not. Clogging still occurs in dosing systems as well as standard systems.More research and careful tracking of installed systems is necessary. An additional dosing chamber and pump adds up to approximately $880 to $1000 to the price of the standard system. REGULATORY STATUS: Washington State Guidelines for dosing systems have been issued. There are 57 systems on the state inventory. PRESSURE DISTRIBUTION SYSTEMS Pressure distribution systems like the dosing system store pretreated effluent for periodic distribution to the soil absorption field. Diameters of small radiu s are used to pump the effluent over the entire absorption field. The pressure distribution system provides the most uniform distribution.Such accurate distribution avoids the localized overloading problems. The additional benefit of dosing are also achieved with the Pressure Distribution system. EVALUATION: The Pressure distribution systems are mostly suitable for permeable and coarse textured soils. This is because they improve the potential for treatment by the distribution of the effluent evenly over the entire absorption field and reduce the potential for direct bypass of effluent to the ground water. The installation cost, operational cost and the maintenance cost are much more in a pressure distribution system when compared with the gravity system.This is because of the additional cost of the dosing chamber and pumps which approximately adds to $800 to $1000 to the price of a standard system. The cost of installation of the absorption field is similar to that of the standard field. It is obvious that these systems result in the most effective treatment in coarse textured soils, but it is not clear whether or not the life of the absorption field is long lasted in fine grained soils. REGULATORY STATUS: Washington State Guidelines for pressure distribution Systems have been issued (revised SEPT 1984).There are a total of 52 systems on the state inventory. ALTERNATING DISTRIBUTION SYSTEMS The effluent is not stored by the alternating distribution systems. Instead the disposing of the pretreated effluent is carried out between two separate absorption fields. These absorption fields are constructed in close proximity and the fields are usually alternated annually. This allows the unused field to drain and aerobic decomposition of clogging mat to take place. The residential systems are generally constructed with two equal fields each containing 75% to 100% of the required surface area.EVALUATION: Washington alternative system guidelines require each component field to contain 100% of the area required for a single field. In a conventional system it is also required that the soil meet its standards. Hence the installation cost is more and the benefit received is the increased life time of the absorption field. REGULATORY STATUS: Washington state guidelines have been issued. There are two systems on the state inventory. MOUND OR FILL SYSTEMS This is a pressure distribution system installed in a mound constructed on top of the natural soil.Such systems are used when the GWL is too close to the surface or when the soil is not permeable enough or is too permeable. This mound is constructed of a coarse grained material usually sand through which the pretreated effluent travels before it reaches the original surface of the soil. Vegetable cover and top soil are used to cover the mound. Usually the soil absorption field is constructed below the top soil. The mound system is placed on the top of the top soil layer and thus gains the additional be nefit of this soil layer for the treatment.The treated effluent is dispersed over laterally through the top soil until it is absorbed into the sub soil. EVALUATION: These mound systems have emerged as an effective alternative for sites whose soils are unsuitable. Anyhow construction of a mound requires the transportation of large amounts of new soil to the site and the mound must be carefully designed and constructed properly in order to see that no problem occurs in the future. The design and installation cost of the mound system can cost between $4000to$8000. Therefore this the last option for installation.REGULATORY STATUS: Final state guidelines have been issued for the mound systems and there are 257 systems on the state inventory. EVAPOTRANSPIRATION BEDS The evapotranspiration beds discharge the wastes into the air instead of the soil. The use of such beds is not allowed in those areas where the annual evaporation is more than the annual precipitation. These beds are lined wit h water tight materials such as plastic, filled with crushed rock and sand, and again covered with top soil. Perforated pipe lines are used distribute pretreated effluents to the bed as in the conventional absorption system.EVALUATION: Testing of 17systems took place in Easter Oregon and that revealed out poor performance. All but one of the systems developed holes in the linear. They allowed the untreated effluent to enter the ground water. REGULATORY STATUS: An experimental system permit would be required for installation of the evapotranspiration beds. 3. 2 ALTERNATIVE TREATMENT DEVICES The focus has mainly been on the disposal systems in an onsite research in the USA. However there has been some interest in reducing the clogging of soil absorption fields. This has led to in improving the quality or purity of the effluent from treatment devices.If the purity of the effluent is improved then the clogging in coarse unstructured soils is reduced. There are 2 devices in the pretreatm ent of wastewater, the septic tank and the aerobic tank. To provide an extra treatment to the effluents from septic tank and aerobic tank several technologies have been developed. Some of the devices are capable enough to produce the effluent suitable for surface discharge. However the surface discharge is not allowed in all states and so these types of systems can be utilized to improve the performance of the soil absorption field. AEROBIC TANKSAn aerobic tank is a watertight container which runs on the mechanism where the wastewater comes in contact with air. The decomposition of waste products takes place when they are in contact with the air. The separation of the solids and greases take place and the liquid waste is discharged into a disposal system. The solids must be pumped from the final chamber regularly. Aerobic tanks can reduce the BOD by 85% to 98% under ideal conditions and also reduce the Suspended Solids by 40% to 80%. A septic tank reduces BOD by 25% to 65% and suspe nded solids by 40% to 80%.EVALUATION: Aerobic treatment devices are sensitive to any changes in the quantity of wastewater or the characteristics of the wastewater they are treating. In normal conditions, the effluent has not been shown to be of a higher purity than the septic tank effluent and the purity of the septic tank changes vastly with time. These are mechanical devices which require skilled men to operate it and also to maintain it. Since the aerobic tanks need regular inspections and frequent maintenances, they are best suited for conditions where the management is done by Wastewater Management District or utility.REGULATORY STATUS: Final state guidelines were issued in 1975 for the aerobic devices. No systems are illustrated on the state inventory. ANAEROBIC FILTERS These filters are mainly designed to provide secondary treatment to septic tank effluent before they discharge to a soil absorption system. The filter is a water tight container which is filled with crushed ro ck or other soil type which will support microbial growth. Effluent is treated when it comes in contact with anaerobic organisms on the surfaces of the anaerobic filters. EVALUATION: Development is still in the experimental stage for small residential systems.It is reported that anaerobic filters can reduce the BOD of septic tank effluent by 30% to 80% and can further reduce fecal coliform by 43% to 95%. No additional source of energy is required and the maintenance cost is almost similar to that for a septic tank. Cost Estimations are not available. More research and field tests are needed. REFULATORY STATUS: No state guidelines are there for anaerobic filters and an experimental system permit would be required. SAND FILTERS Many sand filter designs have been installed on an experimental basis for residential onsite use.Sand filters operate by directing pretreated effluent into or onto a layer of sand allowing it to drain through the sand where aerobic decomposition of the wastewat er takes place and collecting the filtrate in a perforated pipe at the bottom of the filter. Filters may be constructed either above or below the ground. The systems that are constructed below the ground can be contained in a water tight vault or can also be uncontained in direct contact with the surrounding soil. Some filters send back part of the filtrate through the filter for further treatment. The liquid filtrate is ultimately disposed of in a soil absorption field.Sand filters are capable of producing very high quality of effluent with reported BOD and SS reductions of 99% and 97%, respectively. EVALUATION: The Oregon Department of Environmental quality has conducted extensive research into the use of sand filters for residential use. Their research has shown good success at improving the ability of soils to accept and treat effluent on sites with soils that are not acceptable for the conventional systems. In cases where the soil conditions are very poor, an installation of sa nd filter is made to treat the effluent coming out of the septic tank before the disposal in the mound system.However this system might cost up to $1000. REGULATORY STATUS: Washington State interim guidelines for sand filters have been issued and are currently being revised. 3. 3 IN-HOUSE ALTERATION OF WASTEWATER The main factors that are taken into consideration when designing onsite treatment and disposal systems are the quantity and quality of the wastewater being treated. These factors also have an important effect on the long term performance of those systems. Wastewater is created and its characteristics are determined by the water use habits of the residents belonging to the household.The quality of the wastewater is also influenced by the water use habits of the residents. One technique of altering the waste stream is one technique considered to permit onsite treatment and disposal on sites with less suitable soils. HOUSEHOLD WASTEWATER CHARACTERISTICS Household wastewater c haracteristics vary widely with the time of day and the season. Wastewater from residential houses is affected by high utilization of water like the day of wash, holidays and guests and periods of no flow in times of vacations. Below are given the values of average residential wastewater.Typical household wastewater is 99. 9% water by weight, and 0. 02% to 0. 03% suspended solids, plus minor amounts of other soluble and insoluble organic and inorganic substances. Wastewater also contains bacteria, viruses and other microorganisms from the digestive tract, respiratory tract and skin. Some of the physical and chemical characteristics of wastewater produced by various activities are listed below. TABLE 3. 1 HOUSEHOLD WASTEWATER – PHYSICAL AND CHEMICAL COMPOSITION ACTIVITY| BIOLOGICAL OXYGEN DEMAND| SUSPENDED SOILS| Kitchen activities| 42%| 27%| Bathing and showering| 6. %| 6. 8%| Clothes washing| 29. 9%| 31. 3%| Toilet Flushing| 21. 8%| 35. 8%| TOTAL| 100%| 100%| WASTE SEGREGATI ON Toilet flushes or black wastes contribute approximately 35% of the water, 36% of the suspended solids, and 68% of the total nitrogen to the household waste stream. The volume and pollutant load of remaining water which is called grey water is reduced if the toilet wastes are treated separately without using water. VAULT PRIVIES Vault privies and holding tank systems store the waste products from toilet in a storage vessel which is water tight and is pumped out periodically?EVALUATION: The storage systems are generally used to correct a temporarily correct a failing system but not always applicable to residential uses. REGULATORY STATUS: Washington state guidelines have been issued and the use is restricted to non-residential applications. INCINERATING TOILETS The use of natural gas and electricity is made to incinerate toilet wastes in the incinerating toilets. In these toilets the solids are reduced to ash and the liquids are evaporated and vented to the outside. Later the ash i s disposed of at regular intervals of time.EVALUATION: Incinerating systems consume energy either from electricity or from natural gas and should go through a fifteen minutes treatment cycle after every use. Five to Six units installed in Kentucky in the early 1970s had been abandoned by 1978 because of high operation costs, associated doors and frequent problems of repairs. REGULATORY STATUS: Washington state interim guidelines for incinerating toilets were issued. BIOLOGICAL TOILETS Biological toilets treat human wastes by composting. Composting takes place under specific conditions of temperature, moisture, exposure to Oxygen and the availability of carbon and nitrogen.This process of composting usually results in a relatively dry end product which is free from harmful components. This end product is intended for disposal as a soil additive. To assure successful treatment of wastes, proper maintenance of design and operation of composting toilets within the composting chamber. Th ere are two common designs used, (1) small units where the entire unit is on the floor in the toilet room and (2) large toilets where the composting unit is below the floor. EVALUATION: Even though they have been in use for many years, the design of composting or biological toilets is still evolving.Field testing in the United States of America has resulted in some problems. Two studies sponsored by U. S. EPA (Environmental Protection Agency) and conducted in California and Oregon report generally poor performance including certain problems like excess buildup of liquid, problems caused by insects and rodents, structural failures and incomplete treatment of wastes. For certain units to operate efficiently an added heat and forced ventilation are required. REGULATORY STATUS: No existing regulations in the state of Ohio. GREYWATER TREATMENT AND DISPOSALGrey water contains concentrations of organic materials, solids, nutrients and fecal bacteria which require treatment to that of the t otal household wastewater. A significant amount of wastewater created can be reduced by segregating the waste. EVALUATION: Even though the conventional treatment and disposal methods are required, the segregation of black wastes allows the size of the system to be reduced significantly. Septic tank size can be reduced by 50% and the capacity of the soil absorption field can be reduced by 40%. REGULATORY STATUS: Guidelines for grey water treatment are included in the state regulations. . REGULATION OF ALTERNATIVE ONSITE SYSTEMS To prevent the spread of diseases, the need for regulation of onsite sewage disposal became necessary. However specific construction requirements are many times difficult to justify in terms of preventing the spread of diseases. This difficulty led to vast differences in policy and allowed regulations to be influenced by political purposes as well as public health purposes. A national survey of existing state codes in 1947 found considerable variation in requi rements for onsite sewage disposal systems (Weibel, 1947, in Kreissl, 1982a).These findings prompted the U. S. Public Health Service to become involved, and in 1957 they published the Manual of Septic-Tank Practice. A survey of all the states was conducted in 1971 and showed that most state codes had incorporated the recommendations of the manual (Patterson, 1971, in Kreissl, 1984). Since that time, states have been revising their codes in response to local experience and new research. In 1980 the U. S. Environmental Protection Agency published a Design Manual for Onsite Wastewater Treatment and Disposal.Newer or â€Å"alternative† onsite treatment technologies are more complex than that of the conventional systems and incorporate pumps, recirculation piping, aeration, and other features (e. g. , greater generation of residuals) that require ongoing or periodic monitoring and maintenance. However, the current management programs of most of the jurisdictions do not typically o versee routine operation and maintenance activities or detect and respond to changes in wastewater loads that can overwhelm a system. In addition, in many cases onsite system planning and siting functions are not linked to larger ground water and watershed protection programs.The challenge for onsite treatment regulators in the new millennium will be to improve traditional health based programs for ground water and surface water protection while embracing a vigorous role in protecting and restoring the nation's watersheds. 5. CONCLUSION There are important problems not addressed by existing regulations 5. 1 Funding of Existing State Onsite Programs The Department of Social and Health Services currently has 1. 8 staff statewide for the entire onsite program. Department officials estimate that 4 to 5 full time staff would be required to adequately perform the state’s duties (Lenning, 1987). . 2 Operation and Maintenance The U. S. EPA (Environmental Protection Agency) Design Man ual for Onsite Wastewater Treatment and Disposal Systems (1980) suggests that there are three distinct phases in the life of onsite systems that required to be controlled. * Installation * Operation * Maintenance The above phases of installation, operational cost and maintenance cost cause problems that may result in system failures that threaten public health or damage the environment. Guidelines for alternative and experimental systems require some monitoring of operation as mentioned in Section 4. 2.The difference between using an onsite system and being connected to a municipal sewer is usually not known to the home owners. Careful operation and careful maintenance is required for an onsite system to function properly. For example, there might be a serious effect on the operation of an onsite system with the use of garbage grinders or excessive water volumes (Refer Chapter 3. 3). An important maintenance function for most of the systems is pumping of septic tank. If this is not done properly it may result in the rapid failure of the soil treatment and disposal system (Refer Chapter 2. 2).Special operation and maintenance requirements are present in most alternative systems so that they can function properly. As of now there are no statewide requirements for operation and maintenance of conventional or alternative onsite systems. There are two possibilities to control the onsite system operation and maintenance. * Regular Inspection and documentation of maintenance * Community or regional wastewater management districts REGULAR INSPECTION AND DOCUMENTATION OF MAINTENANCE To adequately protect public health and the environment regular maintenance of the onsite wastewater systems is required.In some areas, the local governments require the property owners to provide local health authorities with evidence that their wastewater system is being operated and maintained properly. Inspections are conducted by health officials or licensed individuals, such as plumbe rs who are well trained and also are certified to carry out inspections. COMMUNITY OR REGIONAL WASTEWATER MANAGEMENT DISTRICTS In the previous days onsite wastewater systems were considered temporary solutions until one of the areas were sewered. From then they have become an important wastewater treatment practice for many areas.The induced and often dramatic growth can be reduced with onsite system in low density areas. With the help of an onsite system the high costs for the construction of the traditional centralized sewer and treatment systems can also be reduced. The degradation of the ground water and the environment can be avoided if the management district sees that the maintenance of the onsite systems within the district is functioning properly or not. In some states wastewater management districts have been formed using a combination of alternative including individual and communal systems. . 3 FAILING SYSTEMS The repairs are usually difficult when a system fails because of its high repairing cost. The health officials find it difficult in the issues of failing systems. They are difficult to detect the cause of the failure and are even more difficult rectify the defect or to repair it. There are two regulatory problems, related to alternate systems that arise when a system fails. * If there is not enough land to construct an approved replacement system then a failing system may be located on this lot.If there is flexibility in the guidelines for the application of an alternative system or replacement systems, then this could allow people to improve their wastewater treatment system even if they are not able to meet all applications. * The Property owner not being able to afford the cost of an approved replacement system Some funding assistance is required to help low income householders to rectify the onsite system deficiencies. For example if the failing system is located on soil that is not suitable for a conventional system, an alternative syste m may be required.The installation cost and operational cost are very high for alternative systems. 5. 4 WATER CONSERVATION The advantages of water conservation on the treatment of soil and disposal systems are described in section 3. 3. Some of the advantages of water conservation are. * The performance of soil absorption system is increased. * Savings in energy costs * Potential for correcting a system which is failing Several applications for water conservation to regulate to onsite regulations are: * Regulations allow for soil-absorption field sizes to be decreased when it can be shown that low water use fixtures require a decrease.However some officials might be hesitant to permit the decreases in soil absorption field size fearing that the occupants in future might install non efficient fixtures and cause the system to fail. * Water conservation can be a cost effective method for correcting the failures of the system (Refer section 3. 3). There are currently no state guideline s for the application of this method. * Some states like Oregon and California have enacted a legislation which requires the installation of some water efficient fixtures in new construction (Puget Sound Water Quality, 1986). REFERENCES 1.Metcalf and Eddy (2002) Wastewater Engineering: Treatment, Disposal and Reuse, 4th Edition. McGraw-Hill, New York, New York 2. Syed R Qasim, Wastewater Treatment Plants- Planning, Design and Operation, Second Edition. 3. Wikipedia www. wikipedia. org 4. Environmental Protection Agency(EPA) FIGURES 1. Typical Septic Tank – Soil Absorption System 2. Septic Tank (Adapted from Environmental Protection Agency, 1980) 3. Soil Absorption Field Cross Section 4. Typical Dosing Chamber with Pump 5. Mound System 6. Aerobic Treatment Unit (Aerobic Tank) 7. Sand Filter 8. Biological Toilets

Saturday, September 14, 2019

Health & Hygiene

Change in health & hygiene There has been towering change in the area of health and hygiene in rural Bangladesh. Almost all the villages have a health complex and a pharmacy nearby. People are coming out of the ignorance and consulting the doctors when necessary unlike earlier times. Health consciousness has modulated the rate of mortality especially in case of women and children. People at village are now more aware of the healthy ways of living their lives. Health campaigns by government and NGOs assisted a lot in framing up the health awareness.People at village are more concerned about taking care of the pregnant mothers and their health. Most of the families now know about the vaccination of the infants and almost all of them give effort to ensure the good health of the infants. Taking â€Å"Polio â€Å"vaccine has already been a common trend there in every year. All these resulted in a noticeable decline in mortality rate of infants and pregnant mother. Not only that, importa nce of having pure drinking water has also been realized by rural people. The campaign against arsenic in last decade has been totally worthwhile. Proper sanitation is also encouraged now.A massive change has taken place in terms of outlook. Family planning is no longer discouraged in village since villagers are moving away from orthodox religious practices that might harm. In terms of health and hygiene almost all of the changes have been in public interest till now but there are rooms for further development. Villagers do still lack good doctors and nurses. Points for presentation * Establishment of hospitals and pharmacies in rural areas * Public health awareness * More caring attitude towards pregnant mothers & infants * Awareness about family planning * Need for more skilled doctors & nurses

Friday, September 13, 2019

Out of Hart, Dworkin and Altman, who provided the best understanding Essay

Out of Hart, Dworkin and Altman, who provided the best understanding of judicial discretion What implication do their position have for the legitimacy of judic - Essay Example After Roper says he would cut down every law in England that kept him from pursuing and capturing the Devil, More answers: Oh And when the last law was down, and the Devil turned 'round on you, where would you hide, Roper, the laws all being flat This country is planted thick with laws, from coast to coast, Man's laws, not God's! And if you cut them down, and you're just the man to do it, do you really think you could stand upright in the winds that would blow then Yes, I'd give the Devil benefit of law, for my own safety's sake! (Bolt 46) In other words, from More's perspective, the protections that the law affords everyone are worth the protections that the law offers the accused, no matter how obvious his or her guilt may seem. More clearly advocates a fairly literal application of the law and would frown on a great deal of legislation from judicial benches. More, of course, lived four centuries ago. Legal philosophy has changed a great deal since then. One movement that has been particularly influential in the past century has been the advent of legal positivism. This idea asserts a fundamental difference between law and morality. By extension, this idea suggests that there is room for judges to act as social activists, and use rulings to ameliorate the damage that the gaps between the laws as they stand and the ethics of particular situations can wreak. H.L.A. Hart, Ronald Dworkin, and Alfred Altman all have perspectives on the proper role of judicial activism and discretion. Dworkin and Hart come in on basically opposite sides of the argument. While Dworkin views the law as a system that always provides a correct answer, through his Theory of Adjudication (Gaffrey 22), Hart asserts that laws themselves are "open-textured" and that there is room for judges to use discretion to plug the gaps between legal rules and morals (Bix 52). Altman takes a middle view based on his idea of "truncation," which basically refers to a judge knowing when to apply the law to its most literal extent, and when to abridge its extension (Altman 5). Given the liberal ideals of the modern rule of law in the United Kingdom, it would seem that this middle way provides the most room for compromises in cases where compromises are clearly needed, without permitting judges to become too activist in their rulings. Hart's concept of legal positivism divides the law into two categories: primary, or duty-imposing, rules, and secondary, or power-imposing rules. Primary rules confer rights or set obligations: criminal law is made up of only primary rules, for example. Secondary rules dictate the ways in which primary rules are made and enforced. An example would be the rules that dictate the makeup of Parliament, and the rules governing the enactment of acts in Parliament (Bix 51). One of the most crucial elements of Hart's theory is the "open texture theory." Hart uses the term "open texture" to mean that there are some situations in which judges should apply discretion when there is a case that may be said to fall outside existing rule of law. He supports this assertion with three reasons. First, language itself, which comprises laws, contains many loopholes, just by virtue of its very nature. While words in a legal rule may well