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氧化亚铁硫杆菌耦合砷黄铁矿还原浸出软锰矿
Authors
冯雅丽
李浩然
+3 more
杨志超
滕青
程玉龙
Publication date
1 January 2015
Publisher
Abstract
将氧化亚铁硫杆菌(T.f)用于砷黄铁矿与软锰矿共同浸出,设置无菌体系作为对照,提出有氧和无氧条件下Fe As S-Mn O2的反应模型。研究结果表明:氧化亚铁硫杆菌对砷黄铁矿还原浸出软锰矿具有明显的催化作用,在砷黄铁矿与软锰矿的质量比为1:3.6、反应p H为1.8的最优条件下,有菌体系下锰的浸出率达99%,后续金的氰化浸出率达95%以上;Mn2+会抑制细菌的生长,当ρ(Mn2+)≥30 g/L时,Mn2+对细菌有致死作用;从软锰矿与砷黄铁矿的循环伏安曲线可看出两矿均有明显的氧化还原峰,且在有菌的条件下两矿的电化学活性要远远比无菌条件下的强;T.f菌的作用机理是催化Fe2+和Fe3+的相互转化..
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Last time updated on 09/11/2016
Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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oai:ir.ipe.ac.cn:122111/45988
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Institutional Repository of Institute of Process Engineering, CAS (IPE-IR)
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Last time updated on 05/12/2019