Fenton试剂强化二级铁炭微电解预处理有机助剂废水  

Pretreatment of organic promoter wastewater by Fenton reagent enhanced two-stage ferric-carbon micro-electrolysis

作　　者：冯晓娟[1] 李德生[2] 洪飞宇[3] 祝栋年[4] 

机构地区：[1]兰州交通大学环境与市政工程学院,兰州730070 [2]北京交通大学土木建筑工程学院,北京100044 [3]郑州大学综合设计研究院,郑州450002 [4]北京城建设计研究总院,北京100037

出　　处：《工业用水与废水》2010年第5期35-38,共4页Industrial Water & Wastewater

基　　金：甘肃省自然科学基金资助项目(ZS021-A25-021-G);兰州交通大学"青蓝"人才工程基金资助项目(QL-05-08A)

摘　　要：针对单级曝气铁炭微电解对高浓度难生化有机废水CODCr去除效率低的问题,研究了Fenton试剂强化一级出水下的二级曝气铁炭微电解预处理法。结果表明:将一级铁炭微电解出水的pH值调为2,投加200 mg/LH2O2(30%)后,使其进入二级铁炭微电解反应器;反应60 min,CODCr去除率较一级微电解处理可提高25%左右,较直接串联两级微电解处理提高16%,强化反应出水的m(BOD5)/m(CODCr)从小于0.21提高至0.45,达到较好的预处理效果,可作为高浓度难生化降解有机化工废水预处理的理想方法。In view of the low CODCr removal rate when using single stage ferric-carbon micro-electrolysis（FCME） to treat high concentration hard-biodegradable organic wastewater,the two-stage FCME with Fenton reagent enhancing the treated water from the first stage was investigated.The results showed that： the effluent water from the first stage FCME was added into the two-stage FCME reactor after its pH value had been adjusted at 2 and 200 mg / L of H2O2（30%） had been added.Through 60 min of reaction,the removal rate of CODCr was about 25% higher than that by the first stage FCME,and 16% higher than that by the series two-stage FCME,the mass ratio of BOD5 to CODCr was increased from below 0.21 to 0.45,the pretreatment effect was satisfying.It could be seen that,two-stage FCME was a proper process for high concentration hard-biodegradable organic chemical industrial wastewater treatment.

关 键 词：化工废水 难生化 预处理 铁炭微电解 FENTON试剂 

分 类 号：X783.031[环境科学与工程—环境工程]