津滨海地区某生活污水处理站工程对地下水环境影响预测研究

Study on the impact of a domestic sewage treatment station project on groundwater environment in tianjin binhai area

生活污水处理设计处理规模为1000 m^3/d,处理工艺拟采用"机械格栅+调节池+缺氧池+好氧池+MBR池+MBR产水池+接触消毒池+中水回用水池+达标排放"。污水处理站内的各池体位于地下,如果池体发生老化、防渗层失效的状况,污水渗入地下含水层则可能对潜水含水层造成影响。为预防生活污水处理厂对地下水产生影响,在参考国内外已有的地下水环境影响评价实例后,结合本区的水文地质、环境地质、工程地质条件,通过进一步勘查,分析、预测和评价了工程建设后对地下水环境的影响,制定了相应的保护及预防污染方案,为建设项目的科学建设提供了地质依据。

The scale of treatment and treatment of domestic sewage treatment is1000m3/d.The treatment technology should adopt“mechanical grille+regulating pool+anoxic pool+aerobic pool+MBR pool+MBR production pool+contact disinfection pool+water reuse pool+Standard discharge“.Sewage treatment station in the pool body is located in the ground,if the pool body aging,impermeable layer failure of the situation,sewage into the underground aquifer may have an impact on the aquifer.In order to prevent the impact of domestic sewage treatment plants on the groundwater,with reference to the existing examples of groundwater environmental impact assessment at home and abroad,combined with the hydrogeology,environmental geology and engineering geological conditions of this area,through further exploration,analysis,prediction and evaluation of the project The impact of the construction on the groundwater environment,the development of the corresponding protection and prevention of pollution programs for the scientific construction of the construction project provides a geological basis.