System and method for removing contaminants from liquid

Details System and method for removing contaminants from liquid System and method for removing contaminants from liquid

B - Operations, Transporting

03

D

B03D 1/04 (2006.01) B01D 21/01 (2006.01) B01F 3/04 (2006.01) B04C 9/00 (2006.01)

Patent

CA 2455127

A method for removing contaminants from a liquid includes filtering objects of a relatively large dimension. The liquid is then mixed with additives to adjust the chemistry of the liquid. The liquid is pressurized and directed through a gasification device to dissolve gas into the liquid. This is accomplished by directing the liquid into an inlet of a hydrocyclone of the gasification device, directing the liquid exiting the hydrocyclone upwards to remove large bubbles, and removing liquid containing dissolved gas from a bottom portion of a vessel of the gasification device. The pressure of the liquid is then reduced and the liquid is introduced into a separation tank, and the contaminants are removed from the liquid by stratification. The treated water is removed from the separation tank, and sludge formed by skimming flocs from a liquid surface of the tank is subjected to a dewatering process.

La présente invention concerne un procédé permettant d'extraire des contaminants d'un liquide et consistant à utiliser un hydrocyclone soit en tant que dispositif de gazéification soit en tant que dispositif de réduction de la pression préalablement à une opération de séparation par stratification dans un réservoir de flottation (18).

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