Abstract: Fenton-coagulation precipitation method has been used for treating the wastewater from lithium battery cover-board 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%.

Key words: Fenton reagent, coagulation, precipitation, lithium battery processing wastewater

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% H₂O₂投加量为12.5 mL/L、FeSO₄·7H₂O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%。

关键词: Fenton试剂, 混凝, 沉淀, 锂电池加工废水

CLC Number: 

• X703