C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/24 (2006.01) B01D 17/02 (2006.01) B01F 3/04 (2006.01) C02F 1/40 (2006.01) C02F 3/12 (2006.01) B01F 5/06 (2006.01)
Patent
CA 2095887
A system for cleaning water in rivers or lakes or for separating oil and water. Stock water to be treated is sucked up by a pressure pump 2 from a portion A to be treated such as a river or lake and is fed to vapor-liquid mixing means 1. This sucked stock liquid is fed with a gas compressed by a compressor 3 so that the compressed gas fed from the compressor is mixed and dissolved by the vapor-liquid mixing means 1 in the stock liquid fed from the pressure pump. After this, the liquid under pressure is reserved in a pressure tank 4 and is fed again to the treated portion A via a feed pipe 6. To the leading end of the feed tube 6, there is attached a pressure valve 5 which is opened at a pressure exceeding a predetermined level, so that it can keep the pressure of the liquid containing the dissolved gas at the predetermined level or more. Thus, a great amount of the very fine bubbles can be produced in the treated liquid of the treated portion d so that flock or oil in the treated portion A can be efficiently lifted by the sticking action of the fine bubbles. According to this system, the construction can be simplified, and the lifting action by the bubbles can be effected by keeping the pressure of the liquid at a predetermined level or more at all times. Thus, the system can be used anywhere under all circumstances.
Borden Ladner Gervais Llp
F.tecs Co. Ltd.
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