NDLI: TECHNOLOGY Effect of Seasonal Variation on Metal Speciation in Leachate from a Thermal Power Plant Ash Pond: Impact on Ground Waters

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TECHNOLOGY Effect of Seasonal Variation on Metal Speciation in Leachate from a Thermal Power Plant Ash Pond: Impact on Ground Waters

Content Provider	Semantic Scholar
Author	Pani, Balaram Sirohi, Sidhharth Barwa, Manjeet Singh
Copyright Year	2013
Abstract	The concentration and extent of speciation of three environmentally important heavy metals, viz., Cd, Cu and Zn in the form of free ions and labile complex (C+F), slowly labile complex (CS1) and stable complex (CS) has been investigated in terms of percentage (%) in the Leachates from an ash pond of a 720mw thermal power plant in Delhi. The seasonal variations also have great infl uence on the total concentrations and speciation of these heavy metals in the ground water as well as in the leacha tes. The total concentration and speciation of thes e heavy metals is influenced by the physico-chemical parameters of th e water column and also on the seasonal variations. For seasonal variation, the study has been carried out on the mo nsoon(MON) period (June, July and August), pre-monsoon(PRE) period (March, April and May), Post monsoon(POS) period (September, October and November) and the winter (WIN) season (December, January and February). Leachates containing different species of these heavy m etals and other contaminants may have a deleterious effect on the receiving waters of the river Yamuna. Lysimete r studies simulating the generation of ash pond leachates hav e been conducted to ascertain the seasonal variatio n on leachability of different metal species. This may i mpart metal toxicity to the water body. Estimation of the speciation of these three heavy metals in the leach ates and ground water, a picture of heavy metal dis tribution and the nature or extent of the speciation may be obtai ned.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.ijesrt.com/issues%20pdf%20file/Archives%202013/Oct-2013/50.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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