Phosphates In Water Pollution Essay

Phosphates In Water Pollution Essay

While the free essays can give you inspiration for writing, they cannot be used 'as is' because they will not meet your assignment's requirements. If you are in a time crunch, then you need a custom written term paper on your subject (phosphates in water pollution)
Here you can hire an independent writer/researcher to custom write you an authentic essay to your specifications that will pass any plagiarism test (e.g. Turnitin). Waste no more time!

Phosphates may be created by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary phosphate. Primary and secondary phosphates contain hydrogen and are acid salts. Secondary and tertiary phosphates, with the exception of those of sodium, potassium and ammonium are insoluble in water. Tertiary sodium phosphate is valuable as a detergent and water softener. The primary phosphates tend to be more soluble. Phosphates, which are an important component to metabolism in both plants and animals, help in the first step in oxidation of glucose in the body. Primary calcium phosphate is an ingredient of plant fertilizer. Phosphates have caused increasing attention recently. The focus is on the environmentally harmful effects in household detergents. Wastewater, from laundering agents, contains phosphates, which are said to be a water pollutant. Most laundry detergents contain approximately 35% to 75% sodium triphosphate (Na5P3O10), which serves two purposes. Providing an alkaline solution (pH 9.0 to 10.5) is necessary for effective cleansing and also to tie up calcium and magnesium ions found in natural waters and prevent them from interfering with the cleansing role of the detergent. Eutrophication is the progressive over-fertilization of water, in which festering masses of algae's blooms, choking rivers and lakes. Phosphorus compounds act as a fertilizer for all plant life, whether free-floating algae or more substantial rooted weeds, and are implicated in eutrophication. Many countries control phosphate levels, whereas Switzerland has banned the use of phosphates. The marine environment is both fragile and more resistant than the terrestrial ecosystem. It is fragile for the reasons that nutrients are generally present in very low concentrations, permanently consumed by living organisms and pollutants diffuse rapidly. Lakes and rivers are extremely complex ecosystems. Nutrients are taken up by both algae and rooted weeds. The weeds act as a shelter for fish larvae and zooplankton, both of which eat algae and are, in turn, eaten by larger fish. Scientists have concluded that unpolluted lakes can absorb surprisingly large amounts of phosphates without uncertainty. When a fertilizer, such as a phosphate, is added more algae will grow, and consequently will the populations of zooplankton and fish. Difficulties only arise when the lake is already impure. Zooplankton are sensitive to their environment and many substances are toxic to them. If any of these substances, including phosphates, are present the zooplankton population cannot increase. Adding phosphates to this polluted system will case algae growth. The floating masses cut off the light supply. Weeds die and
The rest of the paper is available free of charge to our registered users. The registration process just couldn't be easier. Log in or register now. It is all free!

More College Papers

Philosophy And Fantasy essay
Symbolism of the Ring Symbolism of the Ring: The Embodiment of Evil "One Ring to rule them all, One Ring to find them, One Ring to bring them all and in the Darkness bind them" (1 LotR II,2 The Council of Elrond) One of t

Philosophy essay
Along with other noted philosophers, John Stuart Mill developed the nineteenth century philosophy known as Utilitarianism - the contention that man should judge everything in life based upon its ability to promote the greatest individual happiness. While Bentham, in particular, is acknowledged as th

Philosophical Foundations Of Poverty And Distribution essay
Any Lockeian scholar would be lying if they told you that any topic in the secondary literature on the Two Treatises of Government was more famous (or infamousÉdepending on who you talk to), widely debated, or caused more controversy than the old Oxford gradÕs theory of property. S