Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1996-05-08
1997-04-22
Nessler, Cynthia L.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210687, 210691, 210692, 210693, 210799, 134 10, C02F 142
Patent
active
056226306
ABSTRACT:
An apparatus and method for removing unwanted substances from media such as water and soil. Various industrial waste water streams can be treated simply and effectively to remove therefrom such unwanted substances as petroleum hydrocarbons, heavy metals, phenolics, salt, ethylene glycol, and strontium, and sea water can be similarly treated to remove salt as well as petroleum hydrocarbons therefrom. Waste water or sea water is contacted with zeolite in the presence of a surfactant, and optionally hydrophobic cellulose, to effect removal of the unwanted substances therefrom; and soil contaminated with petroleum hydrocarbons, salt or agricultural chemicals can be rejuvenated by mixing the soil with zeolite and a surfactant followed by washing. The apparatus and method provides simultaneous removal of a wide variety of unwanted substances from a feed stream passed therethrough, in contrast to prior art procedures effective to remove only one such substance per treatment. The method is further effective to suppress the formation of foul smelling gas in standing water containing petroleum hydrocarbons and one or more substances tending to promote such gas formation.
REFERENCES:
patent: 1745844 (1930-02-01), Cowles
patent: 2004257 (1935-06-01), Tschirner
patent: 2213641 (1940-09-01), Tainton
patent: 3009872 (1961-11-01), Snell et al.
patent: 3023132 (1962-02-01), Diamond et al.
patent: 3037338 (1962-06-01), Thomas
patent: 3037886 (1962-06-01), Ryznar
patent: 3676357 (1972-07-01), Ciuti et al.
patent: 3694364 (1972-09-01), Edwards
patent: 3699039 (1972-10-01), Calmon
patent: 3732326 (1973-05-01), Chen
patent: 4026792 (1977-05-01), Orth, Jr.
patent: 4066394 (1978-01-01), Leonard
patent: 4121903 (1978-10-01), Smolka
patent: 4162236 (1979-07-01), Feierstein
patent: 4167481 (1979-09-01), Cremers et al.
patent: 4168250 (1979-09-01), Sutthoff et al.
patent: 4182690 (1980-01-01), Suzuki et al.
patent: 4190551 (1980-02-01), Murata et al.
patent: 4206080 (1980-06-01), Sato et al.
patent: 4219535 (1980-08-01), Sugahara et al.
patent: 4221565 (1980-09-01), Graupner et al.
patent: 4238346 (1980-12-01), Sugahara et al.
patent: 4309281 (1982-01-01), Dessau
patent: 4363672 (1982-12-01), Kulprathipanja
patent: 4421567 (1983-12-01), Kulprathipanja et al.
patent: 4519918 (1985-05-01), Ericsson et al.
patent: 4537877 (1985-08-01), Ericsson
patent: 4561976 (1985-12-01), Houser
patent: 4569756 (1986-02-01), Klein
patent: 4664839 (1987-05-01), Rieck
patent: 4773939 (1988-09-01), Meffert et al.
patent: 4988440 (1991-01-01), Bernard et al.
patent: 5085784 (1992-02-01), Ostreicher
patent: 5108617 (1992-04-01), Eriksson et al.
patent: 5236595 (1993-08-01), Wang et al.
patent: 5238575 (1993-08-01), Waldmann
patent: 5242503 (1993-09-01), Grant et al.
JWPCF, 1978, vol. 50, No. 3, pp. 433-441, Hopping, William D., "Activated Sludge Treatability of Type A Zeolite".
Environ. Int., 1980, vol. 3, No. 1, pp. 49-58, Stoveland, S.; Lester, J.N.; Perry, R., "The Influence of Zeolite Type A on Heavy Metal Transfer in the Activated Sludge Process".
JWPCF, Nov. 1980, vol. 5, No. 11, pp. 2796 to 2806, Corrando, Manuel J.T.; Perry, Rodger; Lester, John N., "Type A Zeolite in the Activated Sludge Processes--I: Treatment Parameters".
JWPCF, 1980, vol. 52, No. 12, pp. 2875-2886, King, James E., Hopping, William D. and Holman, William F., "Treatability of Type A Zeolite in Waste Water--Part I".
JWPCF, 1980, vol. 52, No. 12, pp. 2887-2905, Holman, William F, Hopping, William D., "Treatability of Type A Zeolite in Wastewater--Part II".
Water Res., 1981, vol. 15, No. 7, pp. 889-901, Baumann, E. Robert; Hopping, William D.; and Warner, Fred D., "Field Evaluation of the Treatability of Type A Zeolite in a Trickling Filter Plant".
JWPCF, 1981, vol. 53, No. 3, pp. 344-351, Carrondo, Manuel T.J.; Lester, John N.; Perry, Roger, "Type A zeolite in the activated sludge process--II: heavy metal removal".
NTIS Accession No. DE93009720/XAB, Report No.: CONF-930304-12, ACS National Meeting at Denver, Co. Abstract only.
Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, (1993) pp. 486, 487, 1108, 1109.
Berman Jules
Green Alvin B.
Nessler Cynthia L.
Schwalbach Joseph C.
LandOfFree
Apparatus for and method of treatment of media containing unwant does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for and method of treatment of media containing unwant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for and method of treatment of media containing unwant will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-339238