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中文摘要：
考察了生物淋滤对5种电池中重金属的溶出效果,比较了化学浸提和生物淋滤对三种电池中重金属的溶出效率,研究了起始pH值对生物淋滤溶出电池中重金属的影响模式.结果表明,生物淋滤对5种电池中6种离子的平均浸出浓度超过350mg·l^-1,锌锰电池（华太）锰浸出浓度、锌锰电池（南孚）锌浸出浓度和镍氢电池的镍浸出浓度分别达524mg·l^-1,600mg·l^-1和750mg·l^-1;而化学浸提对3种电池中5种金属的溶出浓度均不超过10mg·l^-1.起始pH值对生物淋滤电池的离子浸出效率影响巨大.起始pH值愈低,离子浸出浓度愈高.在起始pH值为2.0的生物淋滤体系中,镍镉电池的镍镉浸出平均浓度为350mg·l^-1,而起始pH值为4.0和5.5的淋滤体系中,在整个反应时间内镍镉几乎未能检出.
英文摘要：
Bioleaching is attempted to release heavy metals from the wasted batteries. The bioleaching efficiency of different heavy metals from 5 kinds of batteries was investigated ; The comparison in release efficiency between bioleaching and chemical extraction was carried out; The influence of initial pH on the bioleaching efficiency was studied. The results showed that the average concentration of 6 kinds of heavy metals released from 5 kinds of batteries by bioleaching was over 350 mg·l^-1, the released concentration of Mn from the Zn-Mn dry battery （huatai）, Zn from the Zn-Mn dry battery（nanfu） and Ni from the Ni-MH battery reached 524 mg·l^-1, 600 mg·l^-1 and 750 mg·l^-1 respectively, while the released concentration by chemical extraction is lower than 10 mg·l^-1. Initial pH greatly affected the bioleaching efficiency of heavy metals. The average bioleaching concentration of Ni and Cd from the Cd-Ni battery was 350 mg·l^-1 at initial pH 2. 0, while both Ni and Cd cannot be detected at initial pH 4. 0 or higher. The results demonstrated that bioleaching has great potential in releasing heavy metals from wasted batteries.
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