拉链生产企业含重金属废水处理工程实例  

Practice of Heavy Metal Wastewater Treatment Project in a Zipper Manufactory

作　　者：蒋涛[1] 许青兰[1] 李亚 李欲如[1] 梅荣武[1] 王震[1] JIANG Tao;XU Qing-lan;LI Ya;LI Yu-ru;MEI Rong-wu;WANG Zhen(Environmental Science Research and Design Institute of Zhejiang Province,Hangzhou 310007,China)

机构地区：[1]浙江省环境保护科学设计研究院,浙江杭州310007

出　　处：《中国给水排水》2018年第20期101-104,共4页China Water & Wastewater

基　　金：国家水体污染控制与治理科技重大专项(2017ZX07206-002)

摘　　要：嘉兴某拉链生产企业在除油、清洗、固色等工序中产生含磷及铜、锌、铬等重金属的废水。采用还原反应+中和沉淀法预处理含铬废水,采用两级混凝沉淀工艺处理含磷、铜及锌重金属的综合废水,处理出水水质稳定达到《污水综合排放标准》(GB 8978—1996)的三级标准以及《工业企业废水氮、磷污染物间接排放限值》(DB 33/887—2013)要求。介绍了主要构筑物及设备的设计参数,可为同类工程提供借鉴。A treatment system was built in a zipper manufactory in Jiaxing for the wastewater con- taining high concentrations of phosphorus and heavy metals such as copper, zinc and chromium, pro- duced from oil-removing, cleaning and color fixing processes. Phosphorus, copper and zinc were removed by two-stage coagulation-precipitation treatment process, and chromium was removed through reduction reaction and neutralizing precipitation process. The effluent quality of the wastewater treatment system could reach the requirements of level Ⅲ in Integrated Wastewater Discharge Standard （GB 8978 -1996） as well as Indirect Discharge for Emission Limitation of Nitrogen and Phosphorus for Industrial Wastewater （DB 33/887- 2013）. Designing parameters of main structures and equipment were introduced, which could be used as reference for similar projects.

关 键 词：重金属废水 含铬废水 还原反应 磷酸盐 沉淀 

分 类 号：TU993[建筑科学—市政工程]