Investigation the effects of pulp density on the uranium bioleaching in stirred tank reactor
Publish place: 07th International Congress on Chemical Engineering
Publish Year: 1390
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC07_393
تاریخ نمایه سازی: 25 فروردین 1394
Abstract:
Uranium bioleaching was carried out with low grade uranium ore from anomaly II of Saghand in Yazd. The bacterial which was used for these experiments was the native strain of Acidithiobacillus ferrooxidans. In these experiments, the effect of pulp density on the efficiency of uranium bioleaching was examined. It is observed that increasing the pulp density cause increasing the lag time of bacterial growth and leaching time and in a given time cause lower uranium extraction. In these experiments the uranium extraction percentage reached to 99% after 7 days for 5% (w/v) pulp density at both agitation speeds of 400 (rpm) and 600 (rpm) and 96% and 97% after 8 and 9 days for 15% (w/v) pulp density at agitation speeds of 400 (rpm) and 600 (rpm), respectively.
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Authors
m eisapour
Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
m.a moosavian
Department of Chemical Engineering, Faculty of Engineering, University of Tehran, Tehran, Iran
a keshtkar
Nuclear Fuel Cycle School, Nuclear Science and Technology Research Institute, Tehran, Iran
a rashidi
Nuclear Fuel Cycle School, Nuclear Science and Technology Research Institute, Tehran, Iran
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