C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 11/00 (2006.01) C02F 3/12 (2006.01) C02F 3/20 (2006.01) B02C 19/12 (1990.01)
Patent
CA 2129845
A method and apparatus for treating liquid waste water sludge after its generation and separation from the waste liquid involves propelling a plurality of separate streams of sludge via, for instance, a rotor (37) and then forcibly impacting sludge particles and microbial cells contained in the propelled streams of sludge against a contact surface such as a stator (59), for recirculation of sludge along toroidal paths (62) and (64), to thereby fragment the particles into smaller sized particles and break apart the organic cells. As a result of such a fragmentation process, water located in the pores of the sludge particles is released, thereby enhancing a subsequent dewatering process performed on the sludge. The destruction of the cells permits a subsequent solids digestion process to work more efficiently, while also permitting a more complete conversion to dissolved sugars, proteins and carbon dioxide.
Procédé et appareil de traitement des boues provenant des eaux et liquides résiduaires après leur séparation résiduaires. Ledit procédé comprend la propulsion d'une pluralité de courants de boue au moyen, par exemple, d'un rotor (37), et la projection forcée des particules de boue et des cellules microbiennes, contenues dans lesdits courants de boue propulsés contre une surface de contact tel qu'un stator (59) servant à faire recirculer les boues le long de voies toriques (62) et (64), afin de fragmenter les particules en particules de taille inférieure et de briser les cellules organiques. Ce procédé de fragmentation entraîne la libération de l'eau située dans les pores des particules de boue, rendant ainsi plus efficace la déshydratation ultérieure des boues. La destruction des cellules permet de rendre également plus efficace le procédé de digestion des solides et d'obtenir une conversion plus complète en sucres, protéines et oxyde de carbone dissous.
Kew Alan S.
Kritzer Robert M.
Soule Bruce E.
G. Ronald Bell & Associates
Kady International Inc.
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