Secondary filtering and discharging of wastewater

摘要: Treating wastewater by receiving having a reduced concentration of waste solids into secondary containment space and allowing the to distribute lower horizontal sludge layer, an upper scum relatively clear layer liquid therebetween; flowing from through at least one filter element enclosed in housing top which is submerged below level space; thereafter filtered effluent out housing. In some embodiments, may be discharged using pump configured with conventional flow inducer or, alternatively, sealably shortened thereby discharge that pump's intake.