含氰含铜电镀废水处理工程实例研究  

Engineering Examples of Wastewater Containing Cyanide and Copper

作　　者：刘琪[1] 刘泽航 

机构地区：[1]陕西职业技术学院汽车工程学院,陕西西安710104 [2]西安市环境保护局新城分局,陕西西安710040

出　　处：《环境科学与管理》2017年第6期110-112,127,共4页Environmental Science and Management

摘　　要：采用重力分离、二氧化氯氧化、化学沉淀+过滤方法分别对某镀铜车间的含油、含氰、含铜废水进行分类处理,在pH=9的条件下,采用二氧化氯作为氧化剂将CN-氧化为N2;金属铜离子在碱性条件下与氢氧根产生难溶的氢氧化铜,经沉淀过滤后出水,主要污染物去除率达到98.2%,处理后水质达到《电镀污染物排放标准》(GB 21900-2008)和《黄河流域(陕西段)污水综合排放标准》(DB61/224-2011)相关排放要求。西安市某厂镀铜车间,根据电镀生产废水特征,对含氰、含铜、含油废水进行分类收集处理,最后采用化学沉淀法使处理后废水达标排放。运行结果表明该电镀生产废水处理工艺运行稳定,处理效果好,主要污染物去除率达到98.2%,处理后水质达到《电镀污染物排放标准》(GB 21900-2008)和《黄河流域(陕西段)污水综合排放标准》(DB61/224-2011)相关排放要求。The processes of gravity separation,chlorine dioxide oxidation,precipitation separation and filtration technology have been used for treating the electroplating wastewater. The electroplating wastewater is classified into cyanide-containing,copper-containing,grease-containing wastewater. The CN-was oxidized to N2 by carbon dioxide under the conditions of pH9. Copper hydroxide was reacted by copper ions and hydroxide under the conditions of alkaline. Clean water which the removal rates of the main pollutants are higher than 98. 2%. After the treatment,the water quality of the effluent water reaches Electroplating Pollutants Emission Standard（GB 21900-2008） and Discharge Standard for Shanxi Section in Yellow River Basin（DB61/224-2011）.

关 键 词：电镀废水 含铜废水 含氰废水 含油废水 

分 类 号：X703.1[环境科学与工程—环境工程]