[1]陈侃,张志浩,叶超,等.磷酸铁系电池正极材料生产废水处理工程实例[J].中国给水排水,2024,40(8):130-136.
　CHENKan,ZHANGZhi-hao,YEChao,et al.Organic Wastewater Treatment Project Case of Iron Phosphate Cathode Material Production for Battery[J].China Water & Wastewater,2024,40(8):130-136.
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磷酸铁系电池正极材料生产废水处理工程实例

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第40卷 期数: 2024年第8期 页码: 130-136 栏目: 出版日期: 2024-04-17
Title:
Organic Wastewater Treatment Project Case of Iron Phosphate Cathode Material Production for Battery
作者:
陈侃1,2， 张志浩1， 叶超2， 房睿3,4， 王琦3,4， 张琨3,4， 马楫2， 郑彤1
（1.哈尔滨工业大学 环境学院，黑龙江 哈尔滨 150001；2.苏州苏净环保工程有限公司，江苏 苏州 215000；3.哈尔滨工业大学水资源国家工程研究中心有限公司，黑龙江 哈尔滨 150001；4.广东粤海水务投资有限公司，广东 深圳 518000）
Author(s):
CHEN　Kan1，2， ZHANG　Zhi-hao1， YE　Chao2， FANG　Rui3，4， WANG　Qi3，4， ZHANG　Kun3，4， MA　Ji2， ZHENG　Tong1
（1. School of Environment， Harbin Institute of Technology， Harbin 150001， China； 2. Suzhou Sujing Environmental Engineering Co. Ltd.， Suzhou 215000， China； 3. Urban Water Resources Development and Utilization National Engineering Research Center， Harbin 150001， China； 4. Guangdong Yuehai Water Investment Co. Ltd.， Shenzhen 518000， China）
关键词:
动力电池;  炉窑废水;  尾气喷淋废水;  磷酸铁系正极材料;  蒸发干燥;  生化处理
Keywords:
automotive battery;  furnace wastewater;  exhaust gas scrubber wastewater;  iron phosphate cathode material;  evaporative drying;  biochemical treatment
摘要:
某动力电池用磷酸铁系正极材料生产企业排放的炉窑废水与尾气喷淋废水水量为15 m3/d，该废水含有大量呋喃、有机胺、噻唑等高浓度含硫含氮有机污染物及悬浮物，可生化性差，处理成本高。采用混凝沉淀+单效蒸发+刮板滚筒干燥将有机废水中大部分悬浮物、COD、氨氮、总氮固定进入固废中去除，随后与150 m3/d经混凝沉淀的厂区生产循环冷却水排水混合稀释，再通过AO+MBR生化处理进一步脱氮并去除有机物。该项目投资1 200万元，建成后有机废水处理费较原委外处理方式降低77.2%。运行结果显示，该组合工艺对COD、氨氮、总氮的平均去除率分别达到99.79%、99.87%、99.90%，最终出水指标稳定在COD≤200 mg/L、氨氮≤40 mg/L、总氮≤60 mg/L，满足《无机化学工业污染物排放标准》（GB/T 31573—2015）的间接排放标准。
Abstract:
The furnace wastewater and exhaust gas scrubber wastewater generated by an enterprise producing iron phosphate cathode materials for automotive batteries has the volume of 15 m3/d, and contains high concentrations of sulfur and nitrogen organic pollutants such as furans, organic amines, and thiazoles, as well as suspended solids, which have poor biodegradability and high treatment costs. Most of suspended solids, COD, NH3-N, and TN in the organic wastewater are fixed into the solid waste for removal by coagulation sedimentation, single-effect evaporation, and scraper drum drying. The treated wastewater is mixed and diluted with 150 m3/d of circulating cooling water from the plant area after coagulation sedimentation, and is further treated using an AO and MBR technology to achieve denitrification and removal of organic substances. The total investment in this project amounted to 12 million yuan, resulting in a 77.2% reduction in treatment cost compared to previous commissioned treatment. Operational results demonstrate that the average removal efficiency of COD, NH3-N, and TN of the combined treatment process achieve 99.79%, 99.87% and 99.90%, respectively. The final effluent quality meets the indirect discharge standards specified in the Emission Standards of Pollutants for Inorganic Chemical Industry (GB/T 31573-2015), with COD≤ 200 mg/L, ammonia nitrogen less than 40 mg/L, and total nitrogen less than 60 mg/L.
更新日期/Last Update: 2024-04-17