Liquid purification or separation – With gas-liquid surface contact means – With separator
Patent
1994-08-29
1996-01-02
Wyse, Thomas
Liquid purification or separation
With gas-liquid surface contact means
With separator
210188, 210218, 55528, C02F 306
Patent
active
054805384
ABSTRACT:
A process and an apparatus for treating waste water in oxidations ponds, oxidation ditches, or other bodies of water in a waste water treatment facility to abate the malodors caused by the presence of volatile contaminants. In the process, a water stream is withdrawn from the body of waste water and contacted with an air stream in an air-water contact apparatus. The water stream is thereby aerated and stripped of potentially odor causing volatile contaminants and an off-gas stream is produced containing the stripped volatile contaminants. At least a portion of the aerated and stripped water stream is returned to the body of waste water to inhibit anaerobic decomposition of organic impurities. The off-gas stream is passed through a fixed bed type biofilter comprising a porous filter bed provided with appropriate microorganisms so that the volatile contaminants in the off-gas stream come into contact with the microorganisms and are biologically metabolized into environmentally innocuous substances rather than being emitted into the ambient air.
REFERENCES:
patent: 3269542 (1966-08-01), Benzi et al.
patent: 3904518 (1975-09-01), Hutton et al.
patent: 4069148 (1978-01-01), Hutton et al.
patent: 4201663 (1980-05-01), Rollag et al.
patent: 4421534 (1983-12-01), Walker
patent: 4662900 (1987-05-01), Ottengraf
patent: 4806148 (1989-02-01), Ottengraf
patent: 4869824 (1989-09-01), Melin et al.
patent: 4882058 (1989-11-01), Burton
patent: 4892664 (1990-01-01), Miller
patent: 4966704 (1990-10-01), Sarner
patent: 4999302 (1991-03-01), Kahler et al.
patent: 5045215 (1991-09-01), Lamarre
patent: 5122166 (1992-06-01), Hyrcyk et al.
patent: 5176798 (1993-01-01), Rodden
patent: 5183563 (1993-02-01), Rodden
patent: 5190668 (1993-03-01), Chuang
patent: 5246584 (1993-09-01), Donaldson et al.
patent: 5259868 (1993-11-01), Doubrawa et al.
patent: 5389248 (1995-02-01), Pare et al.
C. Richard Neff, P. E., Biological Degradation System for Odor Control, dated ??, pp. 1-12.
Walter Bishop, Jay Witherspoon, Tom Card, Dan Chang and Richard Corsi, VOC Vapor Phase Control Technology Assessment, 1990, Chapter 3 (pp. 3-1 through 3-35), Chapter 6 (pp. 6-1 thru 6-20) and Appendix A.
Hinrich L. Bohn, Proceedings of Hazmacon 89 (Hazardous Materials Management Conference and Exhibition), 1989, pp. 233-240.
Hinrich L. Bohn and Robert K. Bohn, Biofiltration of Odors From Food and Waste Processing, dated ??, pp. 1-13.
Facultative-Aerobic Lagoon (A Design Procedure for Odor Control), dated ??, pp. 24-25, 27 and 29.
Brandon R. Ball and Michael D. Edwards, Air Stripping VOCs From Groundwater (Process Design Considerations), 1991, pp. 1-15.
D. A. Carlson and C. P. Leiser, Soil Beds for the Control of Sewage Odors, Journal WPCF, dated 1966, vol. 38, pp. 829-840.
Secondary Treatment, dated ??, pp. 8-9 and 20.
S. P. P. Ottengraf and A. H. C. Van Den Oever, Kinetics of Organic Compound Removal From Waste Gases With A Biological Filter, Journal of Biotechnology & Bioengineering, dated 1983, vol. XXV, pp. 3089-3102.
Eric R. Allen and Yonghua Yang, Biofiltration Control of Hydrogen Sulfide Emissions, 1991, pp. 2-16.
Dougald Colin D.
McCombs David E.
Rapp Martin L.
Monsanto Enviro-Chem Systems, Inc.
Wyse Thomas
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