C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/08 (2006.01) B01D 24/28 (2006.01) C02F 3/06 (2006.01) C02F 3/12 (2006.01) C02F 3/28 (2006.01)
Patent
CA 2096523
Abstract The present invention relates to a sewage disposal apparatus employing large buoyant filter media and is directed to prevent effectively clogging in these filter media. The intended object of the invention can be attained by circulating the filter media by a circulation means to allow the filter bed as a whole to flow very calmly, and more efficiently by removing sludge deposited on the filter media utilizing the circulatory movement of the filter media.
Iwai Isamu
Nirasawa Chikatsu
Gowling Lafleur Henderson Llp
Iwai Isamu
Nirasawa Chikatsu
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