System and reactor for mixing coagulating agents into a contamin

Details System and reactor for mixing coagulating agents into a contamin System and reactor for mixing coagulating agents into a contamin

1994-02-23

1995-08-22

Hruskoci, Peter A.

Liquid purification or separation

Flow, fluid pressure or material level, responsive

Proportionate feed means

210143, 210199, 210205, 210223, C02F 148

Patent

active

054437199

ABSTRACT:
An improved system and a novel vessel and method for treating contaminated liquids, e.g., aqueous effluent streams, contaminated with a variety of contaminants. The vessel comprises upper and lower mixing chambers connected by an intermediate tubular section and a fluid exit tube running coaxially down the center of the intermediate tubular portion. The contaminated fluid stream to be treated flows in a spiral pattern generally upwardly entering the exit tube at its upper end and flowing downwardly to a lower exit. A magnetic field may be induced in the flow stream. Streams of the fluid to be treated and of an ionized coagulant are combined prior to entry into the vessel and are subjected to very turbulent flow and to the magnetic field, to encourage both very thorough mixing and magnetic coalescing of the coagulant with the fluid to be treated. Magnetite particles may additionally be added to the flow stream to further encourage coagulation in the presence of a magnetic field. After exiting the mixing chamber, the coagulated contaminants may be removed using a variety of known and novel adsorption, absorption, and filtration steps.

REFERENCES:
patent: 3186929 (1965-06-01), Rippie
patent: 4382866 (1983-05-01), Johnson
patent: 4562014 (1985-12-01), Johnson
patent: 4655933 (1987-04-01), Johnson et al.

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