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Metals, Changsha 410015, China)Abstract:Bench-scale soil column experiments were carried out to evaluate the effectiveness of Cr(VI) bioremediation process in soils by using indigenous bacteria with the addition of bacteria nutrient media. Effects of particle size, spray intensity, initial Cr(VI) concentration, circulation mode and soil depth on Cr(VI) remediation were studied. Results show......
J. Cent. South Univ. (2020) 27: 1373-1385 DOI: https://doi.org/10.1007/s11771-020-4373-3 Comparison of leaching of bornite from different regions mediated by mixed moderately thermophilic bacteria... in the leaching residue was almost dissolved. Key words: bornite; bioleaching; thermophilic mixed bacteria; XPS; XRD Cite this article as: CAO Li-bo, HUANG Zhi-hua, SUN Xin, JIN Kai, CHANG Ke-xin, QIN Wen-qing, QIU......
was studied. After leaching for 29 days, the leaching ratio of zinc was 91%. Three kinds of bacteria, mixture-based bacteria, 9K-based bacteria and sulfur-based bacteria were used in marmatite leaching, of which the mixture-based bacteria have the best leaching result while the sulfur-based bacteria have the worst. By analyzing the leaching residue using SEM and EDXA, the marmatite leaching mechanism......
Comparison on the leaching kinetics of chalcocite and pyrite with or without bacteriaRUAN Renmana,b,ZHOU Ec,LIU Xingyub,d,WU Biaod,ZHOU Guiyingd,and WEN Jiankangd a School of Minerals Processing... National Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals,Beijing 100088,China摘 要:The acid leaching,ferric......
are quite distinct. Arsenopyrite is active and quickly eroded in bacteria-bearing solution. With a high leaching rate over 95%, the arsenopyrite phase cannot be detected by X-ray diffraction(XRD... show that the crystal structure and arsenic valency of arsenic-bearing sulphides play a vital role during the leaching process of bacterial oxidation. Key words: thermophilic bacteria; bacterial......
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, and a large quantity of sulfur floccules deposited on the surface of the ores. The mechanism for leaching of CuFeS2-MnO2 in the presence of the bacteria is proposed as a successive reaction of two... Mechanism of electro-generating leaching of chalcopyrite-MnO2 in presence of Acidithiobacillus thiooxidans XIAO Li(肖 利)1, 2, LIU Jian-she(柳建设)3, FANG Zheng(方 正)1, QIU Guan-zhou(邱冠周)4 1. School......
Treatment of simulated wastewater from in situ ching uranium mining byzerovalent iron and sulfate ducing bacteria YI Zheng-ji(易正戟)1, 2, LIAN Bin(连 宾)1, YANG Ying-qun(杨颖群)2, ZOU Jian-ling(邹建陵)2 1...) and sulfate reducing bacteria (SRB) can function synergistically and accelerate pollutant removal. Batch experiments suggest that combining ZVI with SRB can enhance the removal of U(Ⅵ) synergistically......
; Abstract: The process of bioleaching marmatite using moderately thermophilic bacteria was studied by comparing marmatite leaching performance... the transfer of O2 and CO2 in solution and promote the growth of bacteria and therefore, enhance the leaching efficiency. Under the venting levels of 50, 200 and 800 mL/min, the zinc extraction......
