南昌瑶湖污水处理厂一期工程工艺设计

A Process Design of Nanchang Yaohu Sewage Treatment Plant Project(Phase Ⅰ)

瑶湖污水处理厂一期工程规模为4万m3/d,污水处理采用生活区污水与工业区污水分开预处理+改良型A2/O氧化沟。尾水排放执行GB 18918—2002《城镇污水处理厂污染物排放标准》一级标准的B标准,尾水消毒采用紫外线消毒工艺。污泥处理采用机械浓缩、脱水+外运焚烧工艺。简要介绍了污水厂的设计进、出水水质、工艺流程和主要工艺参数。

The project scale of Yaohu Sewage Treatment Plant(Phase I) is 40 000 m3/d and sewage treatment is adopting separate pretreatment for living area sewage and industrial area sewage + modified A2/O oxidation ditch.The tail water discharge is carried out by Class A standard B of GB 18918—2002 Standard for Town Sewage Treatment Plant Pollutant Discharge and tail water sterilization is adopting the process of disinfection by ultraviolet light.The process of sludge treatment is mechanical concentration,dehydration + outward combustion.Finally,several key points of the sewage treatment plant are introduced briefly involving design inflow & outflow qualities,technology process and main technological parameters.