Efficacy of indigenous soil microbes in arsenic mitigation from contaminated alluvial soil of India |
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Authors: | Aparajita Majumder Kallol Bhattacharyya S C Kole Sagarmoy Ghosh |
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Institution: | 1. Arsenic Research Laboratory, Bidhan Chandra Krishi Viswavidyalaya, Kalyani, 741235, West Bengal, India 2. Department of Microbiology, University of Calcutta, Calcutta, India
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Abstract: | 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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