有机硅生产行业重金属废水膜分离技术研究  

Membrane Technology for Heavy Metal Separation from Organic Silicon Production Industry Wastewater

作　　者：周荣忠 谢锦文 李攀荣 代振鹏 王佳琪 易佳璐 李文 ZHOU Rong-zhong;XIE Jin-wen;LI Pan-rong;DAI Zhen-peng;WANG Jia-qi;YI Jia-lu;LI Wen(Jiangxi JDL Environmental Protection Co.Ltd.,Nanchang 330000,China;Key Laboratory of Electronic Electroplating Wastewater Treatment and Recycling of Jiangxi Province,Nanchang 330000,China)

机构地区：[1]江西金达莱环保股份有限公司,江西南昌330000 [2]江西省电子电镀废水处理与资源化重点实验室,江西南昌330000

出　　处：《中国给水排水》2022年第13期90-96,共7页China Water & Wastewater

基　　金：国家科技支撑计划项目(2014BAC04B01);江西省重点研发计划项目(20151BCD40015)。

摘　　要：选用0.4μm的PVDF中空纤维膜,在抽停比为7 min∶2 min、曝气量为70 m^(3)/(m^(2)·h)、初始膜通量为0.5 m^(3)/(m^(2)·d)、悬浮液浓度在20000 mg/L以内的条件下,对含铜锌重金属有机硅生产废水进行处理,出水Cu^(2+)、Zn^(2+)浓度分别为0.20、0.36 mg/L,去除率分别为99.80%、99.07%,且凝聚体污泥干基中Cu含量均值达到17.64%,超过《铜精矿》(YS/T 318—2007)四级品标准,可直接资源化回收,产生经济效益,冲抵后废水处理成本为4.60元/m^(3)。A PVDF hollow fiber membrane with pore size of 0.4μm was selected to treat organic silicon production wastewater containing copper and zinc under the following conditions:pumping work/stop time of 7 min to 2 min,aeration rate of 70 m^(3)/(m^(2)·h),initial membrane flux of 0.5 m^(3)/(m^(2)·d)and suspended solids concentration less than 20000 mg/L.The concentrations of Cu^(2+) and Zn^(2+) in effluent were 0.20 mg/L and 0.36 mg/L,and the removal efficiencies were 99.80%and 99.07%,respectively.The average copper content in the dry base of condensed sludge reached 17.64%,which exceeded the fourth-grade product standard of Copper Concentrate(YS/T 318-2007)and could be directly recycled to generate economic benefits.The cost of wastewater treatment after cost compensation was 4.60 yuan/m^(3).

关 键 词：膜分离 重金属废水 有机硅 Cu^(2+) Zn^(2+) 资源化回收 

分 类 号：TU992[建筑科学—市政工程]