锂电池生产废水处理工程设计和运行实例  

Design and operation of wastewater treatment project for lithium battery production

作　　者：杨伟球[1] 史广宇[2] YANG Weiqiu;SHI Guangyu(Suzhou Polytechnic Institute of Agriculture,Suzhou 215008,China;College of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou 215009,China)

机构地区：[1]苏州农业职业技术学院,江苏苏州215008 [2]苏州科技大学环境科学与工程学院,江苏苏州215009

出　　处：《工业水处理》2025年第3期206-211,共6页Industrial Water Treatment

基　　金：2019年江苏高校“青蓝工程”资助项目“优秀青年骨干教师”研究成果(苏教师[2019]3号);苏州市高等职业教育教师创新团队建设项目(苏教高职[2021]58号);教育部第三期供需对接就业育人项目——北控水务集团有限公司“苏农”人力资源提升项目(2023121519186)。

摘　　要：针对锂电池生产废水水质特征,采用阴极废水预处理去除重金属离子后和阳极废水合并,然后通过电Fenton-混凝反应-DF-厌氧反应器-AO组合工艺对锂电池生产废水进行处理。研究结果表明,该工艺对锂电池废水中的污染物有较高的去除率,对Ni^(2+)、COD_(Cr)、BOD_(5)、NH_(3)-N、TN、TP和SS的去除率分别达到了89.3%、98.7%、97.6%、94.9%、84.5%、93.6%和98.5%,出水水质可以达到《电池工业污染物排放标准》(GB 30484—2013)表2新建企业水污染物间接排放标准要求。最后对工程投资和运行费用进行了分析,采用该工艺处理锂电池生产废水,设计处理量为1000 m^(3)/d,工程投资共计866万元,其中土建投资435万元,设备投资431万元,运行费用包括电费、药剂费、人工费和污泥处置费,实际水量为900 m^(3)/d时,运行费用合计为7.48元/m^(3),为类似企业生产废水的处理提供参考。Based on the water characteristics of lithium battery production wastewater,the cathode wastewater was combined with the anode wastewater after pre-treatment,and then treated by a combination process of electro-Fenton-coagulation-DF-anaerobic reactor-AO.The results indicated that this process had a high removal rate of pollutants in lithium battery wastewater,with removal rates of Ni,COD_(Cr),BOD_(5),NH_(3)-N,TN,TP,and SS as 89.3%,98.7%,97.6%,94.9%,84.5%,93.6%,and 98.5%,respectively.The effluent could meet the indirect emission standard requirements in Table 2 of new enterprises in Emission Standard of Pollutants for Battery Industry(GB 30484-2013).Finally,it analyzed and studied the engineering investment,operating costs.The process was used to treat lithium battery production wastewater,with designed treatment capacity of 1000 m^(3)/d.The total project investment was 8.66 million yuan,including 4.35 million yuan for civil engineering and 4.31 million yuan for equipment.The operating costs included electricity,chemical agent,labor,and sludge disposal fees.When the actual water volume was 900 m^(3)/d,the total operating cost was 7.48 yuan/m^(3),which provided reference for the treatment of similar enterprise production wastewater.

关 键 词：锂电池废水 重金属 混凝沉淀 电FENTON 管式微滤膜 厌氧反应器 

分 类 号：X703[环境科学与工程—环境工程]