Process employing the technique of ballasted flocculation with a step of injection, into the liquid to be clarified, of a ballast consisting of a granular material and of a polymer, followed by a flocculation step which leads to the formation of a ballasted floc, and by an accelerated settling step,...http://www.google.es/patents/US6277285?utm_source=gb-gplus-sharePatente US6277285 - Process for the clarification of liquids and suspensions
Process for the clarification of liquids and suspensions
