宜昌市某园区难降解工业废水深度处理试验及改造工程设计  

Advanced Treatment Experiment and Reconstruction Project Design for Non-Degradable Industrial Wastewater in an Industrial Zone of Yichang City

作　　者：王子麟 柳蒙蒙 高彦瑾 陈亚松 王浩 余海涛 WANG Zilin;LIU Mengmeng;GAO Yanjin;CHEN Yasong;WANG Hao;YU Haitao(Yangtze River Eco-Environmental Engineering Research Center,China Three Gorges Corporation,Beijing 100038,China;Three Gorges Base Development Co.,Ltd.,Yichang 443002,China)

机构地区：[1]中国长江三峡集团有限公司长江生态环境工程研究中心,北京100038 [2]三峡基地发展有限公司,湖北宜昌443002

出　　处：《净水技术》2024年第7期141-148,182,共9页Water Purification Technology

摘　　要：工业园区难降解工业废水的经济性达标一直是亟待解决的难题。宜昌市某工业园区污水处理厂主要处理造纸厂及食品加工厂预处理后的难降解工业废水,长期存在出水不达标、运行成本高的难题。研究以现状污水处理厂难降解有机污染物为研究对象,开展了活性炭静态吸附、混凝沉淀和类芬顿催化氧化对比试验研究,比较了3种方法的处理效果。结果表明,在pH值=5.0~5.5时,类芬顿催化氧化工艺对CODCr的总体去除率最高可达73%以上,出水水质可稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)一级A排放标准,新增运行成本为0.905元/m^(3)。基于深度处理对比试验结果,针对该污水处理厂用地紧张的现状,结合现有土地及各构筑物单元布置情况,提出了提标改造方案,可为类似高比例工业污水厂升级改造提供参考借鉴。Economical treatment of non-degradable industrial wastewater in industrial zones has been an urgent problem to be solved.The wastewater treatment plant(WWTP)of an industrial zone in Yichang City mainly accepts the refractory industrial wastewater after pretreatment from paper mills and food processing plants,which has been facing the problem of substandard effluent and high operation cost for a long time.In this study,the non-degradable organic pollutants in the current WWTP were taken as the research object,and the Fenton-like catalytic oxidation experiment was carried out.The results showed that when pH value was adjusted from 5.0 to 5.5,the overall removal rate of CODCr by Fenton-like advanced treatment process could reach more than 73%,the effluent quality could reach the first grade A discharge standard of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918—2002)stably,and the additional pharmaceutical cost was 0.905 yuan/m^(3).Based on the test results,combined with the existing land and WWTP structures layout,the advanced treatment technology based on Fenton-like catalytic oxidation was proposed.It can provide reference for the upgrading of similar WWTPs with high proportion of industrial wastewater.

关 键 词：污水处理厂 工业废水 升级改造 类芬顿催化氧化 活性炭 混凝沉淀 深度处理 难降解有机物 

分 类 号：TU992[建筑科学—市政工程]