环境工程学报2012，Vol.6Issue(3)：860-864,5.
线路板园区综合废水碱法除铜优化实验
Optimization experiment on copper removal of comprehensive wastewater from printed circuit board industrial park by alkaline method
摘要
Abstract
The copper in printed circuit board（PCB） wastewater mainly exists in complex compound.Breakdown of chelated copper is the key unit in treating PCB wastewater.Various factors were studied,including optimal pH,molar ratio of Na2S/Cu,chemical reaction time,flocculant type,in order to reduce the operating cost and sludge production,also,to provide the reference for further upgrading reconstruction project.Considering the efficiency of copper removal,dosage cost and sludge production together,optimal operating conditions and parameters were determined： the best pH was adjusted to 10.5 by NaOH,the optimal molar ratio of Na2S/Cu was 1.5∶ 1~2∶ 1,reaction time lasted 30 min and it was coagulated by PAC of 100 mg/L and PAM of 3 mg/L.After 0.5 h settlement,Cu concentration of effluent was lower than 0.3 mg/L,which could meet the emission standard of pollutants for electroplating（GB 21900-2008）.关键词
线路板废水/除铜/碱法破络/Na2S/Cu摩尔比/优化Key words
wastewater from printed circuit board plants/copper removal/eliminating chelated copper by alkaline method/molar ratio of Na2S/Cu/optimization分类
资源环境引用本文复制引用
王建芳,刘志刚,沈耀良,朱耀明..线路板园区综合废水碱法除铜优化实验[J].环境工程学报,2012,6(3):860-864,5.基金项目
江苏省六大人才高峰资助项目 （）
