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Acid mine drainage Essay Example

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Acid mine drainage

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Increase the acidity level i.H value, as the value of the P.H decreases, the oxidation process of the metals equally increases increases and this significantly reduces the water quality and culminate into water pollution (Drever 133).The formation of the acid mines drainage process can also be facilitated by through biological processes. The microorganism thiobaccillus ferroxidants is an acid tolerant microbe and is known to be associated with acid mines drainage sites as it enhances the oxidation of the compounds that contain sulphur compounds (Drever 147). . The resultant water in the acid mines drainages are very hazardous to health, in that the acidity and the components of water from the mines contain lethal chemicals. As stated above, without the buffering processes of the process, the acidity level will exponentially increase accelerating weathering process and subsequent development and continuation of the acid mines drainages (Drever 151).Several factors can bring about development of the acid mines drainages, coming into contact between the surface water (oxygenated) with the pyritic ores is one of the ways that largely contribute to the formation of the acid mines drainage. This interaction takes place in three different ways; when the mining processes change the direction of flow of the water pattern to areas endowed with rocks that have been in constant touch with the ground water that is anoxically stagnant (Berner and Berner 98). The other possibility is when the spoils form the pyritic mining is disposed in an area of percolating oxygenated water, and when the pyritic minerals waste materials are directly discharged into the aquatic environment.The formation of the acid mines drainages results into several environmental degradative processes that are vey detrimental to the survival biological life, in such, measures are always put into place as precautionary obligation to ensure that the negative sides of the mining do not surpass the positives. In a round up, the formation of the acid mines results into any of the following; the high acidity realized in the AMD coupled wit the presence of the heavy metals realized during oxidation of the pyrites when access the aquatic environment can lead to serious chronic health problems when consumed by man or other animals (Berner and Berner 103). The oxidation of iron metals in the AMD leads to the formation of a coat that inhibit infiltration of the sunlight in aquatic environment

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Drever, J.I. The Geochemistry of Natural Waters, surface and groundwater environments, Third Edition, Prentice-Hall, 1997. 

Berner, R.A. and Berner, E.K. The global water cycle, geochemistry and environment, Prentice-Hall, 1987. 

Domenico, P. and Schwartz, F. Physical and chemical hydrogeology , Second Edition, 1997, John Wiley and Sons. 

Younger, P.L. Banwart, S. A. and Hedin, R.S. 2002 Mine water, hydrology, pollution, remediation, Kluwer Academic Publishers

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