曝气／铁炭微电解预处理制膜废水试验研究  

Study on the pretreatment of membrane-making wastewater by aeration/iron carbon micro-electrolysis

作　　者：洪飞宇[1] 李德生[1] 韩丹[2] 王晓伟[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《工业水处理》2009年第4期42-45,共4页Industrial Water Treatment

摘　　要：以浙江某制膜公司的生产废水为研究对象，采用曝气微电解对含DMF、DMAC等强有机溶剂的制膜废水进行预处理。结果表明，曝气微电解最佳pH为2～3，最佳停留时间为120min，其COD去除率较普通微电解工艺至少提高5％。串联曝气微电解反应器处理中COD去除率存在二次跃迁曲线。历时30d的稳定运行结果表明．当进水COD为10000～20000mg／L时，COD去除率达52％以上．可以使原水B／C由0.22提高到0．45以上。The wastewater in a membrane-making Co., in Zhejiang has been studied. Aeration/micro-electrolysis method is used for treating the membrane-making wastewater which contains strong organic solvents, such as DMF, DMAC and so on. The results show that the best pH of aeration/micro-electrolysis is between 2 and 3, and HRT is 120 min, and the removal rate of COD is at least 5% higher than that by ordinary micro-electrolysis technology. The COD removal rate in the combined aeration/micro-electrolysis reactor has a 2nd transition curve. The investigation on the stable running which lasted for 30 d shows that when the influent COD changes between 10 000-20 000 mg/L, the COD removal rate is more than 52%, and the B/C could be improved from 0.22 to 0.45 above.

关 键 词：制膜废水 曝气 微电解 铁炭微电解 

分 类 号：X703.1[环境科学与工程—环境工程]