To address the scarcity of urban land resources and the high standards for effluent discharge,a combined process of aeration grit setting tank-multi-stage AAO biological pool-denitrification deep bed filter-air flotation pool-ultraviolet disinfection was adopted in an undergraound sewage treatment plant,the effluent water quality complied with the requiremets of DB 34/2710-2016 Discharge standards of pollutants for urban wastewa-ter treatment plants and major industrial sectors in Chaohu basin.The content of BOD5,NH3-N and TP met the requirement of class Ⅳ in GB 3838-2002 Environmental quality standards for surface water,and the phospho-rus removal target:ρ(TP)≤ 0.1 mg/L can be achieved.The process selection,process flow,process layout and design parameters of the main structures of the underground sewage treatment plant were introduced with the characteristics of the process design summarized at the same time.The actual operation results showed that,the said sewage treatment plant had a reasonable process technology,stable operation and the effluent water quality met the design requirements.
关键词
地下式污水处理厂/曝气沉砂池/多段AAO生物池/反硝化深床滤池/气浮池
Key words
underground sewage treatment plant/aeration grit setting tank/multi-stage AAO biological pool/denitrification deep bed filter/air flotation pool
维普
万方数据