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گواهی نمایه سازی مقاله Investigation the effects of pulp density on the uranium bioleaching in stirred tank reactor

عنوان مقاله: Investigation the effects of pulp density on the uranium bioleaching in stirred tank reactor
شناسه (COI) مقاله: ICHEC07_393
منتشر شده در هفتمین کنگره ملی مهندسی شیمی در سال ۱۳۹۰
مشخصات نویسندگان مقاله:

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

خلاصه مقاله:
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.

کلمات کلیدی:
uranium, bioleaching, pulp density, Acidithiobacillus ferrooxidans, stirred tank reactor

صفحه اختصاصی مقاله و دریافت فایل کامل: https://www.civilica.com/Paper-ICHEC07-ICHEC07_393.html