中文摘要：

以废旧印刷线路板微生物湿法冶金过程中产出的细菌浸出液为研究对象,用电沉积的方法将浸出液中离子态铜以单质形式高效回收,考察废旧线路板细菌浸出液在恒流条件下电流密度、初始pH以及浸出液中有机物对铜回收率及阴极电流效率的影响。结果表明,随着电流密度增大铜回收率呈明显上升趋势,阴极电流效率总体呈下降趋势,当电流密度为200 A·m（-2）,铜回收率达到93.24%,阴极电流效率总体达到80%以上。初始pH对铜回收率无明显影响。有机物对铜回收率、阴极电流效率有较为明显的影响,去除有机物后铜回收率、阴极回收效率明显提升,电沉积120 min后分别达到90.41%、92.14%。

英文摘要：

Taking Bacterial Leaching of Waste Printed Circuit Boards（WPCBs） as the researching object investigated the influences of current density, initial pH and organics on the efficiency and cathodic current efficiency of copper recovery from bacterial leaching by using an electro-deposition approach. The results indicate that copper recovery rate was significantly increased with the increasing of current density, while the cathodic current efficiency decreased. Copper recovery rate reached 93.24 % and the cathode current efficiency can reach above 80 % when the current density is 200 A/m~（-2）. The initial pH has no significant effect on copper recovery rate. Organics has obvious influence on the recovery of copper and the cathode current efficiency, 120 min later they were significantly enhanced up to 90.41 %and 92.14 % after removal of organic matter.