Dewatering system for sludge removal

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 29/01 (2006.01) B01D 29/62 (2006.01)

Patent

CA 2087593

A dewatering system for use in the treatment of waste water which includes a tank, an inclined filter bed having a plurality of filter elements and means for inducing a flow of air through the filter bed to accelerate drying of the removed solids. Also disclosed are means for adjusting the angle of inclination of the filter bed and mechanical means for removing solids from the filter elements. In one embodiment, the filter bed is disposed within an upper unit mounted for rotation on the tank floor to facilitate cleaning of the filters.

La présente invention vise un système de déshydratation des boues utilisé dans le traitement des eaux usées et composé d'un réservoir, d'un lit de filtration incliné regroupant une série d'éléments filtrants, et de dispositifs générant une veine d'air dans le lit de filtration en vue d'accélérer le séchage des particules solides extraites. Sont également divulgués des dispositifs permettant de régler l'angle d'inclinaison du lit de filtration et des mécanismes servant à l'extraction des matières solides recueillies par les éléments filtrants. Dans une variante privilégiée de l'invention, le lit de filtration fait partie d'un composant supérieur monté de manière à pivoter sur le plancher du réservoir pour faciliter le nettoyage des éléments filtrants.

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