PCB线路板厂铜铵络合废水回收利用技术研究  

Study on Recycling Technology of Copper Ammonium Complex Wastewater in PCB Circuit Board Factory

作　　者：郑晓凤 Zheng Xiaofeng(Shenzhen Shentou Environment Technology Co., Ltd., Shenzhen 518049, China)

机构地区：[1]深圳市深投环保科技有限公司,广东深圳518049

出　　处：《广东化工》2019年第8期149-151,共3页Guangdong Chemical Industry

摘　　要：采用芬顿-离子交换-DTRO-抛光树脂技术处理PCB线路板厂蚀刻工段铜铵络合废水。研究结果表明:芬顿条件pH=4、投加ω(FeSO_4·7H_2O)1%、ω(H_2O2)1.5%情况下,废水中络合态铜可以基本转化为离子态,COD可降至40 mg·L-1以下,Cu降低至15 mg·L-1以下;经过D001*7离子交换树脂,出水氨氮小于0.5 mg·L-1;后续经过DTRO碟管膜+抛光树脂处理后水质可达GB/T 11446.1-2013中EW-I标准,实现回收利用。The Fenton-Ion Exchange-DTRO-Polishing Resin technology was used to treat the copper-ammonium complex wastewater in the etching section of the PCB circuit board factory. The experimental results show that the complexed copper in the wastewater can be basically converted into an ionic state and the COD can be reduced to 40 under the conditions of Fenton condition pH=4, addition of ω(FeSO4·7 H2O) 1 %, and ω(H2O2) 1.5 %. Below 0.5 mg·L-1 Cu is reduced to 15 mg·L-1 or less;after D001*7 ion exchange resin, the effluent ammonia nitrogen is less than 0.5 mg·L-1;after DTRO disc membrane + polishing resin treatment, the water quality can reach GB/T 11446.1-2013 EW-I standard for recycling.

关 键 词：PCB线路板 铜铵络合废水 芬顿 D001*7 DTRO 

分 类 号：X703.1[环境科学与工程—环境工程]