城市污水厂二级处理出水深度处理组合工艺研究  

Research on advanced treatment of second effluent by ozone and biological aerated filter process

作　　者：李魁晓[1] 白雪[2] 李鑫玮[1] 甘一萍[1] 

机构地区：[1]北京城市排水集团有限责任公司科技研发中心,北京100124 [2]北京城市排水集团有限责任公司清河污水处理厂,北京100085

出　　处：《环境工程学报》2012年第1期63-67,共5页Chinese Journal of Environmental Engineering

基　　金：国家"863"高技术研究发展计划项目(2008AA062502);国家"水体污染控制与治理"科技重大专项(2008ZX07314-008)

摘　　要：为了研究臭氧-曝气生物滤池二级处理出水深度处理组合工艺的处理效果,采用臭氧-曝气生物滤池(biologi-cal aerated filter,BAF)组合工艺对城市污水处理厂二级生化处理出水进行深度处理。结果表明,组合工艺对造成水中色度的主要物质腐植酸和富里酸类有机物和嗅味物质中的二甲基三硫和二甲基异莰醇(MIB)能够进行有效去除。臭氧氧化能够显著提高后续BAF单元对CODMn的去除。在进水CODMn6～8 mg/L、色度为25～30度、浊度约为8 NTU的条件下,当臭氧投加量为5～6 mg/L、BAF的水力停留时间为1～1.5 h时,出水CODMn<5 mg/L、色度<5度、浊度<1 NTU,出水水质可满足生产工艺对回用水的水质要求。Pilot plant with process of ozone and biological aerated filter（BAF） was conducted for advanced purification of the effluent from wastewater treatment plant,which with routine process of AO.Experimental results showed that organics such as humic acid,fulvic acid,dimethyl trisulfide and 2-methyl isoborneol（MIB） can be effectively removed by the combined process.Ozone oxidation can significantly improve the removal of CODMn by subsequent treatment unit of BAF.CODMn,chroma and turbidity of the combined process effluent were less than 5 mg/L,5°and 1 NTU,respectively.The effluent can meet the requirement of the reclaimed water standard.

关 键 词：二级出水 深度处理 臭氧 曝气生物滤池 

分 类 号：X703.1[环境科学与工程—环境工程]