某精细化工企业废水处理工程实践  

An engineering example of wastewater treatment in a fine chemical enterprise

作　　者：陈凯 Chen Kai(Hangzhou Environmental Protection Research Institute Co.,Ltd.,Hangzhou 311201)

机构地区：[1]中煤科工集团杭州研究院有限公司,浙江杭州311201

出　　处：《石化技术》2024年第12期12-14,共3页Petrochemical Industry Technology

摘　　要：某精细化工企业针对增塑剂废水高化学需氧量(CODcr)、高有机氮和难生物降解的特点,采用“水解脱酯+臭氧氧化”工艺对其进行预处理,综合废水采用“水解酸化+两级厌氧颗粒污泥膨胀床反应器+两级缺氧-好氧+两级曝气生物流化池+混凝沉淀”主体工艺处理。处理出水满足《石油化学工业污染物排放标准》(GB31571—2015),达到园区污水处理厂接纳标准。A combined process of hydrolysis de esterification and ozone oxidation is designed for the pretreatment of plasticizer wastewater characterized by high CODcr concentration,high organic nitrogen content and poor biodegradability in a fine chemical enterprise.The main process of“hydrolysis acidification+two-stage expended granular sludge bed(EGSB)+two-stage anoxic-oxic(A/O)+two-stage aerobic biological fluidized tank(ABFT)+coagulation-sedimentation”is used for the treatment of the comprehensive wastewater.The effluent water quality met the Emission standard of pollutants for petroleum chemistry industry(GB31571—2015),and reached the required standard of the sewage treatment plant in the park.

关 键 词：精细化工废水 臭氧氧化 厌氧颗粒污泥膨胀床反应器 缺氧-好氧 曝气生物流化池 

分 类 号：X70[环境科学与工程—环境工程]