Patent ID: 6605219
Filing Date: 2003-08-12
Classification: C02F,Y02W,Y10S

Abstract:
A wastewater treatment system for enhancing the biological and biochemical performance of on-site residential and commercial single or multiple compartment septic tank type treatment systems prior to effluent discharge, said wastewater treatment system comprising:a septic tank containing a body of wastewater, said septic tank having an inlet in communication with a wastewater source and an outlet in communication with a drain field; a fluidized bed filter including a vessel having a closed bottom end and a top end forming an outlet, said outlet in communication with said body of wastewater, said vessel containing particulate material colonized with bacteria capable of simultaneous ammonia and CBOD reduction; a circulation pump having a suction inlet in fluid communication with said body of wastewater and an outlet in fluid communication with a lower region of said fluidized bed filter; said pump inlet including means for aerating said wastewater by motivation of suction created by said pump.