电催化-生化法处理印染废水零排放工艺研究  

Combined electro-catalytic and biochemical treatment of dyeing wastewater and the development of zero-discharge technology

作　　者：赵佳树[1] 魏刚[1] 曾海燕[1] 乔宁[1] 

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《北京化工大学学报（自然科学版）》2012年第2期13-17,共5页Journal of Beijing University of Chemical Technology(Natural Science Edition)

基　　金：国家"863"计划(2009AA03Z802)

摘　　要：以河北某印染企业的生产废水为研究对象,采用电催化-生化组合工艺探索了印染废水处理及回用技术。通过实验优化了电催化预处理工艺:槽电压3V,处理时长60min,有效电极工作面积与处理废水体积数值之比为1∶6时,废水的CODCr去除率达44.8%。以该工艺对印染废水预处理,可将BOD5与CODCr之比由0.27提高到0.48,使其生化性显著提高。再配合活性污泥(SBR)生化法进行深度降解后,出水水质可达循环冷却水水质要求,可直接作为循环冷却水回用,实现印染废水零排放。The wastewater from a printing and dyeing plant in Hebei province was treated by a combined electrocatalytic and biochemical process. The optimal treatment was attained under the following conditions： the wastewater was first treated by electro-catalytic oxidation with a voltage of 3 V, reaction time of 60 min and ratio of effective working area to volume of 1：6 giving 44. 8% CODcr removal . In this process, the value of BOD5/CODcr was increased from 0.27 to 0.48 and the biodegradability of the treated wastewater was greatly improved. After acti- vated sludge treatment, the treated wastewater can be directly used as cooling water resulting in zero discharge of wastewater.

关 键 词：电催化 生化处理 零排放 

分 类 号：TU991.27[建筑科学—市政工程]