Patent ID: 6517714
Filing Date: 2003-02-11
Classification: B01D,C02F

Abstract:
A ballasted flocculation liquid treatment arrangement comprising:a mixing chamber to receive and mix liquid, granular material and a flocculating agent; a flocculation chamber receiving a mixture of liquid, granular material and flocculating agent from the mixing chamber and providing sufficient turbulence of the mixture to maintain the constituents in suspension and promote flocculation; a sludge tank adjacent to and communicating with the flocculation chamber for receiving ballasted flocs from the flocculation chamber; a clarification chamber disposed above the flocculation chamber to receive liquid from the flocculation chamber; and a turbulence control arrangement extending horizontally between the flocculation chamber and the clarification chamber for separating liquid from flocs and particulates and permitting liquid to pass upwardly from the flocculation chamber to the clarification chamber without causing substantial turbulence in the clarification chamber while permitting particulates to fall from the clarification chamber into the flocculation chamber.