METHODS OF DEWATERING WASTE STREAMS CONTAINING ENTRAINED PARTICLES

Abstract: methods are provided for dewatering a water stream containing entrained particles. the water stream may be a wastewater stream from a papermaking process. separation of the entrained particles from the water is achieved using a clarifying composition that contains a vinylamine-containing polymer or precursor(s) thereof. the vinylamine-containing polymer acts as a flocculant to effectuate separation. then, the mixture is separated in a clarifier unit to produce a clarified water stream and clarifier bottoms.

Inventor(s): Daniel Joseph Nicholson, Sachin Borkar

CPC Classification: C02F1/5272 ({using specific organic precipitants})

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