作　　者： ;

机构地区： 长沙市排水有限责任公司湖南长沙410015

出　　处： 《广东化工》 2022年第20期153-156,144,共5页

摘　　要： 随着水污染防治力度的加大,城镇生活污水处理厂污水量快速增加,且对出水水质标准进一步提高,湖南省某生活污水处理厂改扩建工程采用“A~2O耦合HPB+矩形二沉池+加砂沉淀池+深床滤池”工艺,此次提标扩容改造均在现状厂区内实施。在不减产停产、不新建生物池、不进行现有生物池土建施工的情况下,改扩建后处理规模从10万吨/天增加到19万吨/天,且出水水质从《城镇污水处理厂污染物排放标准》一级A标准提高至《湖南省城镇污水处理厂主要水污染物排放标准》一级标准。 With the strengthening of water pollution prevention and control, the sewage volume of urban domestic sewage treatment plants has increased rapidly,and the effluent quality standards have been further improved. The reconstruction and expansion project of a domestic sewage treatment plant in Hunan Province adopts “A~2O coupling HPB + rectangular secondary sedimentation tank + sand addition” Sedimentation tank + deep bed filter process, and the upgrading and capacity expansion are all implemented in the current plant area. Without reducing production and shutting down production, building new biological ponds, and not carrying out civil construction of existing biological ponds, the treatment scale after reconstruction and expansion will be increased from 100,000 tons/day to 190,000tons/day, and the effluent quality will be changed from the “Urban Sewage Treatment Plant Pollutant Discharge Standard”. “The first-level A standard has been raised to the first-level standard of "Hunan Province Urban Wastewater Treatment Plant Main Water Pollutant Discharge Standard”.

关 键 词： 污水处理厂 提标改造 脱氮除磷 工艺

领　　域： [建筑科学—市政工程]