摘要
根据电镀废水的水质情况、化学指标等,氧化还原反应是处理电镀废水的一种重要方法。含氰和含铬电镀废水处理时须先在碱性环境下去通过氧化反应除去氰根,再使用还原剂还原六价铬,然后使用沉淀剂形成沉淀并进行分离;含铜的电镀废水中由于存在的络合铜对水处理造成了不便,水合肼化学还原法、铁碳微电解法及载铁竹炭非均相Fenton催化处理法均能发生破络反应,使铜废水治理得以进行。为电镀废水的综合治理提供了一定的理论依据。
According to the water quality and chemical indexes of electroplating wastewater,redox reaction is an important method for treating electroplating wastewater.The cyanide-containing and chromium-containing electroplating wastewater must be treated in an alkaline environment to remove cyanide by an oxidation reaction,then a reducing agent is used to reduce the hexavalent chromium,and then a precipitating agent is used to form a precipitate and separate.In the copper-containing electroplating wastewater,the complex copper is inconvenient for water treatment,and the hydrazine chemical reduction method,the iron-carbon micro-electrolysis method and the iron-loaded bamboo charcoal heterogeneous Fenton catalytic treatment method all can cause the destruction of complex reaction,then make copper Wastewater treatment is carried out.It provides a theoretical basis for the comprehensive treatment of electroplating wastewater.
作者
郭春红
孙好芬
Guo Chunhong;Sun Haofen(Shandong Weifang Middle School,Chemical Group,Weifang 261031,China;School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266033,China)
出处
《山东化工》
CAS
2019年第19期232-233,共2页
Shandong Chemical Industry
基金
山东省教改课题(2012286,2015M090)
关键词
含氰废水
含铬废水
含铜废水
碱性氧化
cyanide-containing wastewater
chromium-containing wastewater
copper-containing wastewater
oxidation under alkaline conditions
作者简介
郭春红(1968—),大学本科;通讯作者:孙好芬,女,博士,副教授,主要从事本科教学和环境污染治理研究。
