Impact assessment of fly ash on ground water quality: An experimental study using batch leaching tests

Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA
Rahul DandautiyaSanghamitra Kundu

Abstract

The fly ash, generated at the coal-based thermal power plant, is always a cause of concern to environmentalists owing to its adverse impact on air, water and land. There exists a high environmental risk when it is disposed to the environment. Thus, two different type of fly ash samples (FA-1 and FA-2) have been considered in this study to examine the leaching potential of the elements magnesium, aluminium, silicon, calcium, titanium, vanadium, chromium, manganese, iron, nickel, cobalt, copper, zinc, arsenic, selenium, strontium, cadmium, barium and lead for different types of leachant. Toxicity characteristics leaching procedure and ASTM tests have been performed in the laboratory to simulate different natural leaching scenarios. Characterisation of samples have been done through X-ray diffraction and field emission gun scanning electron microscope. The effect of different liquid to solid ratios (i.e. 5, 10, 20 and 50) on the mobilisation of elements has been analysed. The results indicated that the maximum leaching of all elements occurred at a liquid to solid ratio of 5 except for arsenic, barium and silicon. The groundwater analysis has also been done to understand the actual effects of leachate. The elements presenting the ...Continue Reading

References

Jul 31, 2001·Journal of Environmental Quality·B R StewartM L Jackson
Apr 6, 2002·Environment International·T PraharajS Tripathy
Jul 26, 2002·Journal of Hazardous Materials·Ramasubramania Iyer
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Jul 1, 1996·Journal of the Air & Waste Management Association·D L Chichester, S Landsberger
Jul 7, 2017·Environmental Monitoring and Assessment·Ajit Pratap SinghAnjaney Singh

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Citations

Oct 7, 2019·Environmental Science and Pollution Research International·Vikas PandeyVipin Kumar
Apr 24, 2020·Reviews on Environmental Health·Kristina M Zierold, Chisom Odoh

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Methods Mentioned

BETA
column leaching
X-ray

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