Heavy metals uptake by Euglena proxima isolated from tannery effluents and its potential use in wastewater treatment

Heavy metals uptake by Euglena proxima isolated from tannery effluents and its potential use in... The flagellate, Euglena proxima, isolated from industrial wastewater showed tolerance against Cr6+ (20 μg/ml) and Pb2+ (30 μg/ml). The metal ions slowed down the growth of the organism after 4–5 days of exposure. The reduction in cell population was 68% for Cr6+ and 59% for Pb2+ after 8 days of metal stress. The order of resistance to heavy metals, in terms of reduction in the cellular population, was Pb2+ > Cr6+. Chromium and lead processing capabilities of Euglena proxima were worked out for its potential use as biore-mediator of wastewater. The reduction in the amount of Cr6+ after 7, 14 and 21 days of flagellate culturing containing 5 μg Cr6+/ml of culture medium was 76, 80 and 88%, respectively. Euglena proxima could also remove 78% Pb2+ after 7 days, 82% after 14 days and 90% after 21 days from the culture medium. The acid digestion of Euglena proxima showed 84% of Cr6+ and 88% of Pb2+ ions accumulated in the organism. The heavy metal uptake ability of Euglena proxima can be exploited for metal detoxification and environmental clean-up operations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Ecology Springer Journals

Heavy metals uptake by Euglena proxima isolated from tannery effluents and its potential use in wastewater treatment

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2011 by Pleiades Publishing, Ltd.
Subject
Life Sciences; Environment, general; Ecology
ISSN
1067-4136
eISSN
1608-3334
D.O.I.
10.1134/S1067413611010085
Publisher site
See Article on Publisher Site

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