氯碱工业PVC离心母液废水处理工程设计与运行  

Design and operation of PVC centrifuge wastewater treatment project in chlor-alkali industry

作　　者：刘从彬 张成帅 刘峻 朱亚飞 赵雯雯 Liu Congbin;Zhang Chengshuai;Liu Jun;Zhu Yafei;Zhao Wenwen(Henan Branch Jiangsu Rainfine Environmental Science and Technology Corportation Ltd.,Zhengzhou 450000,China;Henan Institute of Science and Environmental Protection,Zhengzhou 450004,China)

机构地区：[1]江苏润环环境科技有限公司河南分公司,河南郑州450000 [2]河南省环境保护科学研究院,河南郑州450004

出　　处：《煤炭与化工》2019年第8期153-156,共4页Coal and Chemical Industry

摘　　要：为了减少废水排放及环境污染,节约水资源,采用水解酸化法-生物接触氧化法-混凝沉淀法-过滤法组合工艺处理氯碱工业PVC离心母液废水。工程设计处理规模为1000m3/d,设计进水水质COD为200~350mg/L、BOD5为60~150mg/L、SS为100~300mg/L、温度为60~70℃。经此工艺处理后出水水质满足《城市污水再生利用工业用水水质》(GB/T19923-2005)规定的冷却用水标准并回用于生产,即COD≤60mg/L、BOD5≤10mg/L、浊度≤5NTU。工程实例证明该工艺具有操作简单、投资及运行成本低且无二次污染等特点,实现了良好的经济效益和环境效益。In order to reduce wastewater discharge and environmental pollution,and save water resources,the combined process of hydrolysis acidization,biological contact oxidation,coagulation and sedimentation and filtration was used to treat PVC centrifuge liquid wastewater in the chlor-alkali industry.The engineering design and treatment scale is 1 000 m3/d,the design water quality COD is 200 to 350 mg/L,the BOD5 is 60 to 150 mg/L,the SS is 100 to 300 mg/L,and the temperature is 60 to 70℃.After this process,the effluent water quality meets the cooling water quality standards stipulated in the"Industrial Water Quality for Urban Sewage Recycling"(GB/T19923-2005)and is reused for production.That is,COD≤60 mg/L,BOD5≤10 mg/L,turbidity≤5 NTU.The engineering example proves that the technology has the characteristics of simple operation,low investment and operation cost and no secondary pollution,and has achieved good economic and environmental benefits.

关 键 词：氯碱工业 PVC离心母液废水 水解酸化法 生物接触氧化法 混凝沉淀法 过滤法 

分 类 号：X781.2[环境科学与工程—环境工程]