大坦沙污水处理厂工艺流程图：DaTanSha wastewater treatment plant flow diagram格栅沉沙池改良A2O工艺二沉池污泥浓缩池化学消毒污泥脱水污水水达标排放或回用上清液沉淀污泥浓缩污水泥饼外运回流Influent Screen Grit chamber Biological processDewatering sludge thickeningDisinfection secondary settlingEffluentRemove by haulingOutline of wastewater treatment technologyPhysical unit operations include filtration,sedimentation,floatation and centrifugation.Biological unit operations include aerobic and anaerobic biological process.Chemical unit operations include chemical prec
