APPAREIL PERFECTIONNE POUR L'EPAISSISSEMENT, PAR FLOTTATION, DE BOUES PRODUITES LORS DU TRAITEMENT D'EAUX

摘要

An apparatus for thickening by flotation suspensions contained in a liquid, notably slurries produced during treatment of residual water, formed of a circular basin having a scraping system, the scraping members of which are supported by arms connected to a central device driving them in rotation, or a similar apparatus, and having a flexible cover rotating with the scraping system arms wherein the arms provide the supports for the cover.