生物法深度处理印刷线路板含铜废水的试验研究  

STUDY ON THE REMOVAL OF COPPER FROM PRINTED CIRCUIT BOARD FACTORY WASTEWATER BY BIOLOGICAL METHOD

作　　者：曹强[1] 徐乐中[1] 黄天寅[1] 吴玮[1] 刘寒寒[1] 

机构地区：[1]苏州科技学院环境科学与工程学院,江苏苏州215009

出　　处：《水处理技术》2013年第10期112-117,共6页Technology of Water Treatment

基　　金：江苏省科技计划(社会发展)项目(BE2009607)

摘　　要：针对传统物化法无法彻底破除印刷线路板生产废水中络合态铜的特点，在经过一系列物化处理的基础上，采用UASB＋好氧组合工艺对其进行深度处理。试验研究中，通过控制污水在反应器中的停留时间、pH等参数，来优化反应器的运行效果。试验结果表明，控制厌氧阶段pH=7±0．5、温度30~35℃、水力停留时间12h；好氧阶段水力停留时间10h、DO质量浓度为2～4mg／L，处理系统对COD的去除率在85％以上，总铜去除率保持在80％左右，氨氮去除率达到90％，处理出水稳定达到污水综合排放标准（GB8978—1996）中规定的一级排放标准。As we know, the traditional chemical method can not completely remove the copper of complex state in the printed circuit board production wastewater. So, we used UASB and aerobic combined technique for advanced treatment on the basis of a series of physico-chemical treatment. In the study, we optimized the effects of the operation of the reactor by controlling the parameters of the effluent in the reactor, the residence time, pH, etc. The results show that, during the control of anaerobic phase, pH=7± 0.5, temperature was 30~35 degree, hydraulic retention time was 12 h, hydraulic retention time at aerobic stage was 10 h, DO was in the range of2~4 mg/L, the removal rate of COD was above 85%, the total copper removal rate remained at around 80% and the ammonia nitrogen removal rate reached 90%, which means the effluent reached the first class discharge standard specified in the integrated wastewater discharge standard （GB 8978-- 1996）.

关 键 词：生物法 印刷线路板 含铜废水 COD 氨氮 络合铜 

分 类 号：X796[环境科学与工程—环境工程]