A METHOD AND APPARATUS FOR SIMULTANEOUS CLARIFICATION AND ENDOGENOUS POST DENITRIFICATION

摘要

A method and system for treatment of nitrified wastewater. Wastewater is suppl ied to the bottom (202) of a tank (200) having biomass supported on media (208) at or near the top thereof. The biomass is retained for a sufficient time such that the biomass hydrolizes and supplies organic carbon to the wastewater. Simultaneous denitrifi cation and clarification is performed, and excess sludge is discharged from the bottom of the tank.