济南市30000m3d城市生活污水处理厂设计

JinanAbstract:Since entering the 21st century,the development speed of China is getting faster andfaster.,but at the same time,environmental problems are becoming more and more serious.Moreand more domestic sewage,we must take effective measures to recycle waste.Because of theunique topographic structure of Jinan,the topography is high in the south and low in the north,resulting in the surface water and groundwater gathering to the urban area.A sewage treatmentplant with a daily treatment capacity of 30000 m3 is needed to select the CASS process accordingto the characteristics of incoming and outgoing water quality.The process mainly includes themain reaction zone and the pre-reaction zone.The main reaction zone is operated according to theprogram cycle of aeration,reaction,boiling water and idle.The sludge was dewatered by gravityconcentration tank,and the treated sewage was treated by contact sterilizing tank.According to thetheoretical simulation of wastewater from influent to effluent,the municipal sewage in Jinan cityis removed by pretreatment,secondary biochemical treatment and advanced treatment,and finallymake the discharged water meet the national first-class A standard..Keywords:Domestic sewage;biochemical treatment;CASS technology;pollutants