Inhibitory Effect of High Concentration of Metal Ions on the Activity of Acidithiobacillus ferrooxidans in Bioleaching System

Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:

EICONF02_027

تاریخ نمایه سازی: 19 اردیبهشت 1395

Abstract:

The aim of this study was to determine the effect of low-grade ore pulp density on dissolution of metal by Acidithiobacillus ferrooxidans (A. ferrooxidans). The bioleaching experiments was carried with 9k medium and different pulp densities (2.5,15%) of anomaly II of Saghand in Yazd at 150rpm and 35oC. The results demonstrated that the variations of Eh, pH, ferrous iron and metal extraction in the bioleaching system of the bacteria cultivated with 15% (w/v) pulp density lag behind that bacteria with 2.5% (w/v) pulp density. Study on the bioleaching with A. ferrooxidans has indicated that high concentration of metal can decrease leaching capacity.

Authors

Saba miri

Department of Biotechnology, Faculty of Life Science, Alzahra University, Tehran,Iran.

Ezat Asgarani

Department of Biotechnology, Faculty of Life Science, Alzahra University, Tehran,Iran.

Faezeh Fatemi

Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran,

Samaneh Jahani

Nuclear Fuel Cycle Research School, Nuclear Science and Technology Research Institute, Tehran, Iran,

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