摘要
某大型污水处理厂一期工程现有生化处理工艺为UCT工艺,设计规模20万m3/d,出水水质执行《城镇污水处理厂污染物排放标准》(GB18918-2002)一级B标准。应要求,提标后出水水质标准应执行《地表水环境质量标准》(GB3838-2002)中的准Ⅳ标准。本文对多种提标改造工艺进行比对分析,为类似工程提供技术参考。
The existing biochemical treatment process of a large-scale sewage treatment plant in Shenzhen is UCT process with a design scale of 200,000 m^3/d. The effluent quality is in accordance with Class B standard of Pollutant Discharge Standard for Urban Sewage Treatment Plant (GB18918-2002). As required, the standard of effluent water quality should be implemented in the quasi-IV standard of surface water environmental quality standard (GB3838-2002). In this paper, a variety of upgrading processes are compared and analyzed to provide technical reference for similar projects.
