Liquid purification or separation – Flow – fluid pressure or material level – responsive
Patent
1997-08-08
2000-09-26
Popovics, Robert J.
Liquid purification or separation
Flow, fluid pressure or material level, responsive
210167, 210196, 210197, 210202, 210203, 210205, 210207, 210220, 210248, 210295, 2104161, 2105021, 2105321, 210908, 68 18F, 68 18D, 134 10, B01D 116, B01D 17032, B01D 3604
Patent
active
061238384
ABSTRACT:
A method and apparatus for purifying separator waste water from a dry cleaning process. The present invention utilizes 3 stages of purification. In Stage one, highly contaminated separator waste water is put into a solvent separator tank. Liquid solvent settles out of the separator waste water, sink to the bottom of the solvent separation tank where it accumulates below the separated water. In Stage 2 air bubbles are introduced through the separated water, stripping out much of the solvent which is dissolved in the separated water and reducing the dissolved solvent concentration. This air stripping process dramatically extends to useful life of the granulated carbon in the granulated eaton filter. Stage 3 takes the air stripped water and filters it through a granulated carbon filter, which results in the carbon purified water having a dissolved solvent of less than 0.7 parts per million. The carbon purified water can then be safely and economically disposed of without harming the environment.
REFERENCES:
patent: 4513590 (1985-04-01), Fine
patent: 4879888 (1989-11-01), Suissa
patent: 4885099 (1989-12-01), Kelly
patent: 5431827 (1995-07-01), Tatch
patent: 5469876 (1995-11-01), Gray et al.
patent: 5525213 (1996-06-01), Phillips
patent: 5637212 (1997-06-01), Kim
patent: 5653873 (1997-08-01), Grossman
Patent Abstracts of Japan vol. 013, No. 408 (C-634), Sep. 8, 1989 & JP 01 148384 A (Fukuji Obata), Jun. 9, 1989 see abstract, figure.
Patent Abstracts of Japan, vol. 010, No. 365 (C-390), Dec. 6, 1986 & JP 61 164607 A (Mitsubishi Heavy Ind Ltd), Jul. 25, 1986 see abstract; figure.
Database WPI Section Ch. Week 8602 Derwent Publications Ltd., London, GB; Class D15, AM 86-011543 XP002082930 see abstract -& JP 60 236694 A (Sanyo Electric Co) Nov. 25, 1985 see figure 1.
Database WPI Section Ch. Week 9317 Derwent Publications Ltd., London, GB; Class D 15, AM 93-139766 XP002082931 & JP 05 076861 A (Ebara Infilco KK), Mar. 30, 1993 See abstract; figure.
Evaporation Technology International, Inc.
Hahn, Esq. Peter K.
Popovics Robert J.
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