Sludge dewatering control system

Details Sludge dewatering control system Sludge dewatering control system

C - Chemistry, Metallurgy

02

F

C02F 11/14 (2006.01) G01N 15/02 (2006.01)

Patent

CA 2270207

A sludge dewatering control system (10) which relies on a determination of sludge structure after addition of an additive as a predictor of dewaterability of said sludge by dewatering means. The system (10) relies on a method of control of dewatering of sludge, the method comprising obtaining a relationship (25) between particle structure and cake solids content of the sludge (15), continuously monitoring the particle structure of the sludge so as to provide a continuous determination of the cake solids content of the sludge and adding an additive to the sludge as a function of the cake solids content so as to control the dewatering characteristics of the sludge (15). Sludge structure is determined by reference to fractal dimension of the particles making up the sludge.

L'invention concerne un système de contrôle (10) de la déshydratation d'une boue qui repose sur la détermination de la structure de la boue après l'addition d'un additif pour prédire l'aptitude à la déshydratation de ladite boue par un moyen de déshydratation. Le système (10) repose sur un procédé de contrôle de la déshydratation de la boue, le procédé consistant à obtenir une relation (25) entre la structure des particules et la teneur en matières sèches du gâteau de la boue (15), à surveiller en continu la structure des particules de boue de manière à fournir une information en continu sur la teneur en matières sèches du gâteau de la boue et à ajouter un additif à la boue en fonction de la teneur en matières sèches du gâteau, ce qui permet de contrôler les caractéristiques de déshydratation de la boue (15). La structure de la boue est déterminée à l'aide de la dimension fractale des particules constituant la boue.

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