Fenton—混凝沉淀法预处理锂电池加工高浓度废水  

Pretreatment of high-concentration lithium battery processing wastewater by Fenton-coagulation precipitation method

作　　者：管锡珺[1] 仇模凯 夏丽佳 张明辉[1] 陈修硕 刘晓茹 唐振 Guan Xijun;Qiu Mokai;Xia Lijia;Zhang Minghui;Chen Xiushuo;Liu Xiaoru;Tang Zhen(School of Environmental and Municipal Engineering,Qingdao University of Technology,Qingdao 266033,China)

机构地区：[1]青岛理工大学环境与市政工程学院,山东青岛266033

出　　处：《工业水处理》2018年第12期76-80,共5页Industrial Water Treatment

摘　　要：采用Fenton—混凝沉淀法处理锂电池盖板冲洗废水,研究其最佳反应条件,并探讨各因素的影响机理。结果表明:室温条件下,在Fenton反应阶段,30%H_2O_2投加量为12.5 m L/L、FeSO_4·7H_2O投加量为4.0 g/L、pH为2.5、反应时间为1 h时,COD去除率可达91.81%;Fenton反应出水用PAC混凝沉淀法进行再处理,pH为中性或偏碱性、PAC投加量为80 mg/L条件下,最终出水COD去除率可达93.9%。Fenton-coagulation precipitation method has been used for treating the wastewater from lithium battery coverboard rinsing.The optimal reaction conditions of COD removal by Fenton-coagulation precipitation method have been investigated,and then the influence mechanisms of factors discussed.The results show that the removal rate of COD is 91.81%,at room temperature,in Fenton reaction stage,when the dosage of 30%H2O2 is 12.5 mL/L and the dosage of FeSO4·7H2O 4.0 g/L,pH=2.5 and reaction time 1 h.The effluent from Fenton reaction should be retreated by PAC coagulation sedimentation method.Under the following conditions:pH is neutral or slightly alkaline,and the dosage of PAC 80 mg/L,the removal rate of COD is 93.9%.

关 键 词：FENTON试剂 混凝 沉淀 锂电池加工废水 

分 类 号：X703[环境科学与工程—环境工程]