摘要
退镀镍漂洗水中的镍以化学性质稳定的络合物形式存在,难以通过沉淀、过滤等传统工艺予以去除,因此处理络合镍废水的关键在于破络合处理。研究芬顿(Fenton)法→混凝沉淀的工艺对络合镍去除的影响因素及条件,考察H2O2投加量、Fe2+与H2O2的摩尔比、反应时间、混凝沉淀PH对废水中COD和镍离子去除率的影响。结果表明,反应后出水COD和镍离子的去除率分别可达到68.92%、74.62%,可以满足后续深度处理的进水要求,减轻膜处理单元和三效蒸发器的运行压力,为进一步的工程设计提供实验依据。
Nickel in rinsing water of nickel stripping is in the form of complex with stable chemical properties,which is difficult to be removed by traditional processes such as precipitation and filtration.Therefore,the key to the treatment of nickel complex wastewater is complex breaking treatment.In this paper,the influence factors and conditions of Fenton process on the removal of complex nickel were studied.The effects of H2O2 dosage,molar ratio of Fe2+to H2O2,reaction time and pH value of coagulation and sedimentation on the removal rate of COD and nickel ion in wastewater were investigated.The results show that the removal rates of COD and nickel ions in the effluent can reach 68.92%and 74.62%respectively,which can meet the requirements of the influent water for the subsequent advanced treatment,reduce the operating pressure of the membrane treatment unit and the three effect evaporator,and provide experimental basis for further engineering design.
作者
周安东
赵永
ZHOU Antong;ZHAO Yong(Hefei Hengli Equipment Co.,Ltd,Anhui 230088,China)
出处
《电子技术（上海）》
2020年第2期158-160,共3页
Electronic Technology
基金
安徽省中小企业科技创新课题项目。
关键词
水处理工程
退镀镍漂洗水
芬顿(Fenton)法
破络合
water treatment engineering
stripping nickel plating rinsing water,Fenton method,complex breaking
