摘要
南方某污水厂提标扩建工程,一期A^(2)/O好氧区采用MBBR工艺改造并增大缺氧区容积;二期提标采用高效沉淀池+纤维转盘滤池+紫外消毒工艺,强化脱氮除磷及SS去除,并对全厂进行除臭设计。提标扩建后总规模12×10^(4)m^(3)/d,直接运行成本约0.63元/m^(3),出水均值为COD 17.10 mg/L、BOD55.40 mg/L、SS 5.80 mg/L、NH_(4)^(+)-N 0.90 mg/L、TN 5.90 mg/L、TP 0.30 mg/L。均优于《城镇污水处理厂污染物排放标准》(GB 18918-2002)一级A标准,其经验可供其他污水厂借鉴。
Transformation and upgrading engineering design of a sewage treatment plant in South China,the aerobic section of the A^(2)/O tank in phase I was transformed by the MBBR process,and the volume of the anoxic zone was increased.In phase II,the process of A^(2)/O tank+secondary sedimentation tank+high-efficiency sedimentation tank+fiber rotary disc filter+UV disinfection was adopted to strengthen nitrogen and phosphorus removal and SS removal,and the deodorization design of the whole plant was carried out.The total capability after extension was 120000 m^(3)/d.The direct operation cost was about 0.63 yuan/m^(3).The average value of effluent:COD is 17.10 mg/L,BOD5 is 5.40 mg/L,SS is 5.80 mg/L,NH_(4)^(+)-N is 0.90 mg/L,TN is 5.90 mg/L,TP is 0.30 mg/L.All of them were better than the level A criteria of the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB18918-2002).The experience could be used as a reference for the sewage treatment plants.
作者
姚瑞珍
周国胜
杨新春
陶敏
汪瀚
YAO Ruizhen;ZHOU Guosheng;YANG Xingchun;TAO Ming;WANG Han(School of Environmental Science and Engineering,Hubei Polytechnic University,Huangshi Huli Environmental Protection and Energy Saving Industrial Technology Research Institute Co.,Ltd.,Huangshi 435003,China;Fuzhou Kanggan Water Service Co.,Ltd.,Fuzhou 344100,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2024年第2期148-152,共5页
Technology of Water Treatment
基金
湖北省自然科学基金面上项目(2018CFB778)
湖北理工学院重点项目(08yjz08A)。
关键词
A^(2)/O工艺
MBBR工艺
高效沉淀池
纤维转盘滤池
提标改造
A^(2)/O process
MBBR process
high-efficiency sedimentation
fiber rotary disc filter
upgrading and reconstruction
