Efficacy of indigenous soil microbes in arsenic mitigation from contaminated alluvial soil of India

Majumder, Aparajita; Bhattacharyya, Kallol; Kole, S. C.; Ghosh, Sagarmoy

Efficacy of indigenous soil microbes in arsenic mitigation from contaminated alluvial soil of India

2013

Majumder, Aparajita | Bhattacharyya, Kallol | Kole, S. C. | Ghosh, Sagarmoy

Selected arsenic-volatilizing indigenous soil bacteria were isolated and their ability to form volatile arsenicals from toxic inorganic arsenic was assessed. Approximately 37 % of AsIII (under aerobic conditions) and 30 % AsV (under anaerobic conditions) were volatilized by new bacterial isolates in 3 days. In contrast to genetically modified organism, indigenous soil bacteria was capable of removing 16 % of arsenic from contaminated soil during 60 days incubation period while applied with a low-cost organic nutrient supplement (farm yard manure).

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