WASTEWATER TREATMENT USING ACTIVATED SLUDGE AND BALLASTED FLOCCULATION

摘要

A method and system for treating water or wastewater (50) to remove both soluble BOD and suspended solids. The method entails directing first and second water or wastewater streams to a treatment system including an activated sludge system (12) and a ballasted flocculation system (10). The first water or wastewater stream is directed to the activated sludge system which includes at least one reactor (16) and a clarifier (18). The second water or wastewater stream is directed to a ballasted flocculation system (10).