BIOLEACHING OF MOLYBDENUM BY TWO NEW THERMOPHILIC STRAINS ISOLATED AND CHARACTERIZED

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ROSHANI MAHSHID; SAFDARI SEYED JABER; VASHEGHANI FARAHANI EBRAHIM; MIRJALILI KAZEM; MANAFI ZAHRA; SHOJAOSADATI SEYED ABBAS

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Journal: Iranian Journal of Chemistry and Chemical Engineering Year:2017 | Volume:36 | Issue:4 Page(s): 183-194

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Title

BIOLEACHING OF MOLYBDENUM BY TWO NEW THERMOPHILIC STRAINS ISOLATED AND CHARACTERIZED

Author(s)

Keywords

BIOLEACHING

THERMOPHILIC BACTERIA

MOLYBDENUM EXTRACTION

SULFOLOBUS SOLFATARICUS

ACIDIANUS AMBIVALENS

Abstract

This study involves the isolation and characterization of a bacterial strain capable of BIOLEACHING molybdenum ore. Bacterial growth was observed when rock sample was incubated in 9K at 70oC. The isolates were identified as extremely acidophilic, thermophilic and chemolithotroph archaebacteria. Following PCR amplification of the 16S rDNA of the isolated strain, the sequencing of this region and comparison with the Gen-Bank database identified the strains as ACIDIANUS AMBIVALENS and SULFOLOBUS SOLFATARICUS. An experimental design was carried out to optimize BIOLEACHING of molybdenum by these bacteria. Factors of pulp density, initial pH, the concentration of Fe3+and the ratio of two bacteria are the variables and molybdenum and uranium recovery were selected as responses. BIOLEACHING was carried out using molybdenum ore and pulp density of 4%, initial pH of 1.5, Fe3+concentration of 11.5 g/L and SULFOLOBUS SOLFATARICUS to ACIDIANUS AMBIVALENS ratio of 2.0 were selected as optimum conditions. Molybdenum and uraniumrecoveries were 43.2% and 79.1% respectively.

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APA: Copy

ROSHANI, MAHSHID, SAFDARI, SEYED JABER, VASHEGHANI FARAHANI, EBRAHIM, MIRJALILI, KAZEM, MANAFI, ZAHRA, & SHOJAOSADATI, SEYED ABBAS. (2017). BIOLEACHING OF MOLYBDENUM BY TWO NEW THERMOPHILIC STRAINS ISOLATED AND CHARACTERIZED. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 36(4), 183-194. SID. https://sid.ir/paper/712145/en

Vancouver: Copy

ROSHANI MAHSHID, SAFDARI SEYED JABER, VASHEGHANI FARAHANI EBRAHIM, MIRJALILI KAZEM, MANAFI ZAHRA, SHOJAOSADATI SEYED ABBAS. BIOLEACHING OF MOLYBDENUM BY TWO NEW THERMOPHILIC STRAINS ISOLATED AND CHARACTERIZED. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2017;36(4):183-194. Available from: https://sid.ir/paper/712145/en

IEEE: Copy

MAHSHID ROSHANI, SEYED JABER SAFDARI, EBRAHIM VASHEGHANI FARAHANI, KAZEM MIRJALILI, ZAHRA MANAFI, and SEYED ABBAS SHOJAOSADATI, “BIOLEACHING OF MOLYBDENUM BY TWO NEW THERMOPHILIC STRAINS ISOLATED AND CHARACTERIZED,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 36, no. 4, pp. 183–194, 2017, [Online]. Available: https://sid.ir/paper/712145/en

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