A novel approach in red mud neutralization using cow dung

Environmental Science and Pollution Research International
Sucharita PatelRaj Kishore Patel

Abstract

In this study, cow dung was identified as a neutralizing agent for red mud (RM). Present research estimated a significant reduction in pH value of red mud (10 g) from 10.28 to 8.15 and reduction in alkalinity of ~148 mg/L from ~488 mg/L by adding 80 g of cow dung in 40 days of anaerobic condition. XRD results exhibit a high intensity of quartz and found new compound, the calcium carbide. The acid neutralizing capacity (ANC) of NRM reduces to ~0.87 from ~1.506 mol H+/kg. Based on the resultant research, present study proposes cow dung as an efficient neutralizing agent for reducing the pH and alkalinity in the red mud.

References

Feb 20, 2004·Journal of Colloid and Interface Science·Hülya Genç-FuhrmanDavid McConchie
Dec 6, 2005·Journal of Hazardous Materials·Anna F BertocchiAntonio Zucca
Mar 30, 2010·Journal of Hazardous Materials·Ramesh Chandra SahuBankim Chandra Ray
Jul 4, 2012·Waste Management & Research : the Journal of the International Solid Wastes and Public Cleansing Association, ISWA·Suchita RaiJyoti Mukhopadhyay
Feb 18, 2014·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·K SwapnaG Vijaya Prakash

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