摘要
采用氧化还原、化学沉淀法处理广西某五金有限公司电镀废水,先用碱性氯化法和化学还原法分别对含氰废水和含铬废水进行预处理,处理后混入酸碱废水进入化学沉淀处理工序。结果表明:该方法技术成熟,运行费用较低,出水水质达到GB 21900—2008《电镀污染物排放标准》中新建企业水污染物排放限值要求。
In this case,we adopted redox and chemical precipitation to treat the electroplate wastewater from a hardware company in Guangxi. Firstly,cyanide- containing and chromium- containing wastewater was separately preprocessed by chlorination and chemical reduction,and then mixed with acid- base wastewater and went into chemical precipitation process. The application showed that,this technology was matured and cost saving,and its effluent was able to meet the requirements of Emission Standard of Pollutants for Electroplating（ GB 21900- 2008）.
出处
《环保科技》
2016年第2期30-33,共4页
Environmental Protection and Technology
关键词
电镀废水
含氰废水
含铬废水
工程实例
electroplate wastewater
cyanide-containing wastewater
chromium-containing wastewater
case
