生物除铁除锰在钢铁废水回用处理中的应用  

Application of iron and manganese biological removal technology to the treatment of steel recycling wastewater

作　　者：徐竟成[1] 范海青[1] 黄翔峰[1] 张宜莓[2] 叶正[2] 金磊[2] 

机构地区：[1]同济大学环境科学与工程学院,上海200092 [2]宝山钢铁股份有限公司,上海201900

出　　处：《工业水处理》2007年第11期31-34,共4页Industrial Water Treatment

基　　金：上海市重点科技攻关项目(05DZ12017);宝山钢铁股份有限公司技术开发项目(2005K060BF)

摘　　要：研究了锰砂过滤工艺在钢铁废水回用处理中除铁除锰的应用。在滤速5.0 m/h、工作周期4 d、反冲洗强度21 L/(m2.h)和反冲洗时间6 min的操作条件下,经过自然生物培养成熟的锰砂滤层对钢铁回用废水中的总铁、锰的去除率达80%以上,出水总铁和锰都达到再生水用作循环冷却用水的水质要求。同时成熟的锰砂滤料还具有一定的COD和氨氮去除能力。The application of manganese mineral filter technology to the iron and manganese removal from the steel wastewater recycling treatment has been studied. With the operating parameters of filtering speed 5.0 m/h,working cycle 4 d,backwash strength 21 L/（m^2.h） and backwash time 6 min,the bio-matured manganese mineral filter layer which was bio-cultured naturally has effect on the total Fe and Mn^2＋ removal rate in steel recycling wastewater and the removal rate is as high as 80%. The residual condition of TFe and Mn^2＋ in the outflow water conforms to the requirement of the water quality of the regenerated water that is used as circulating cooling water. At the same time, the bio-matured manganese mineral filter layer also has the ability to remove COD and NH4^＋-N.

关 键 词：钢铁废水 锰砂生物过滤 除铁除锰 

分 类 号：X757[环境科学与工程—环境工程]