Liquid purification or separation – With means to add treating material – Plural distinct separators
Patent
1983-10-24
1985-07-02
Hruskoci, Peter
Liquid purification or separation
With means to add treating material
Plural distinct separators
210205, 210208, 210237, 210241, 210521, 175206, C02F 152, B01D 2108
Patent
active
045266875
ABSTRACT:
A chemical mixing apparatus comprises a preferably cylindrical mixing tank having a flow inlet at the lower bottom central portion of the tank, the flow inlet providing an injection conduit which proceed vertically a distance into the tank. A floc concentration tube is provided with an inner bore, the tube being vertically mounted in the tank about the injection conduit with the tube having a lower fluid inlet and an upper fluid outlet, the fluid inlet being in communication with the tank by means of a plurality of perforations in the tube at the fluid inlet adjacent the bottom of the tank. A rotatable propeller shaft having a mixing propeller mounted thereon is attached to the tank structure, the shaft being mounted at least in the tube bore above the injection conduit with the propeller being between the lower fluid inlet and the upper outlet immediately adjacent the outlet of the injection conduit. A cylindrical shroud baffle having a diameter greater than the diameter of the tube is mounted within the tank at the upper fluid outlet and surrounding the fluid outlet of the tube. The baffle provides upper and lower edge portions projecting respectively a distance above and below the fluid outlet. The tube provides a floc concentration chamber which surrounds the point of injection of the waste stream entering the tank together with chemicals which are injected to enhance formation of floc in a manner which enhances recirculation and therefore floc build-up.
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Garvey, Jr. Charles C.
Hruskoci Peter
Water & Industrial Waste Laboratories, Inc.
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