重庆某污水处理厂提标改造工程工艺路线探讨
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摘要
重庆某污水处理厂一期设计规模3万m3/d,提标改造工程采用在原二级生物处理单元基础上增加深度处理单元,深度处理工艺采用高效沉淀池—滤布滤池工艺,在高效池前端投加铁盐和PAM、奥贝尔氧化沟缺氧段投加碳源,最后经过滤布滤池过滤。提标改造后各项出水指标均从GB 18918—2002城镇污水处理厂污染物排放标准一级B标准达到一级A标准。
The first phase design capacity of a wastewater treatment plant is 30 000 m~3/d in Chongqing,the advanced treatment unit is used in the upgrading and reform project which is added to the original secondary biological treatment unit. The combined process of high efficiency sedimentation tank,cloth-media filter was adopted in the advanced treatment process. Dosing iron salts and PAM at the front of high efficiency sedimentation tank,carbon source in the anoxic ditch of Orbal Oxidation ditch,the final effluent that was filtered by the cloth-media filter. As a result,the effluent indexes were all raised from the first level B criteria of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant( GB 18918—2002) close to the first level A criteria.
The first phase design capacity of a wastewater treatment plant is 30 000 m~3/d in Chongqing,the advanced treatment unit is used in the upgrading and reform project which is added to the original secondary biological treatment unit. The combined process of high efficiency sedimentation tank,cloth-media filter was adopted in the advanced treatment process. Dosing iron salts and PAM at the front of high efficiency sedimentation tank,carbon source in the anoxic ditch of Orbal Oxidation ditch,the final effluent that was filtered by the cloth-media filter. As a result,the effluent indexes were all raised from the first level B criteria of Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant( GB 18918—2002) close to the first level A criteria.
引文
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[2]鲁海峰,武少华,刘晓鹏,等.西安市第五污水处理厂一级A提标改造措施分析[J].给水排水,2013,39(7):45-49.
[3]陆进.高效沉淀池的技术研究与应用[J].中国资源综合利用,2017,35(10):23-24.
[4]李慧,李涛,王文.高效沉淀池的工艺设计与应用案例[J].净水技术,2012,31(2):84-87.
[5]陈积义,邓小华.滤布滤池在污水深度处理工程中的试验研究[J].给水排水,2014(S1):65-68.
[6]蒋富海,安鹏.高密度澄清池—滤布滤池在污水深度处理中的应用及控制[J].给水排水,2017(4):21-22.