电镀园区废水提标改造工程实例介绍  

Introduction of engineering example of wastewater standard upgrading and reconstruction project in electroplating park

作　　者：侯爱国 Hou Aiguo(Jingjiang Huasheng Heavy Metal Prevention and Control Co.,Ltd.,Jingjiang 214500,China)

机构地区：[1]靖江市华晟重金属防控有限公司,江苏靖江214500

出　　处：《电镀与精饰》2024年第3期102-107,共6页Plating & Finishing

摘　　要：介绍了靖江市电镀园区废水提标改造工程的处理工艺、主要构筑物参数及运行效果。在原有处理工艺的含镍废水处理末端增加芬顿氧化、电化学及树脂吸附,含铬废水处理末端增加焦亚还原、微电解及平板超滤膜。各类预处理单元混合后,生化处理增加“厌氧水解-两级A/O+PACT-MBR”工艺,另外采用臭氧、芬顿高级氧化及树脂吸附作为终端保障措施把关。提标改造后工艺运行平稳,自动化程度高,出水水质从原来的《电镀污染物排放标准》(GB21900—2008)表2提升至表3特别排放限值,有效改善了周围的水环境,对同类型电镀园区污水处理厂的提标改造具有一定的参考意义优势。This paper presents the treatment process,main structure parameters and operation effect of the wastewater upgrading and reconstruction project in Jingjiang Electroplating zone.Fenton oxidation,electrochemistry and resin adsorption were added at the end of the original nickel-containing wastewater treatment,and pyrolytic reduction,micro-electrolysis and flat ultrafiltration membranes were added at the end of the chromium-containing wastewater treatment.After these various pretreatment units were mixed,the process of"anaerobic hydrolysis-two-stage A/O+PACT-MBR"was added for biochemical treatment.Furthermore,to ensure the final effluent quality,ozone,advanced Fenton oxidation,and resin adsorption were employed as additional safeguards.The upgraded process demonstrated stable operation and a high degree of automation.As a result,the effluent quality was significantly improved,surpassing the standards outlined in Table 2 of the"Discharge Standards for Electroplating Pollutants"(GB21900—2008)and meeting the more stringent special discharge limits specified in Table 3.These improvements effectively enhance the surrounding water environment and serve as a valuable reference for similar upgraded wastewater treatment facilities in electroplating parks.

关 键 词：电镀园区 提标改造 高级氧化 可生化性 

分 类 号：TQ153.1[化学工程—电化学工业]