Liquid purification or separation – Processes – Chemical treatment
Patent
1993-04-01
1994-10-04
Nessler, Cynthia L.
Liquid purification or separation
Processes
Chemical treatment
210763, 210764, 210501, 210758, C02F 150, C02F 178
Patent
active
053523695
ABSTRACT:
A method of treating water to kill bacteria therein includes exposing the water to a silver catalyst in the presence of oxygen to form an active oxidizer in the water. The silver catalyst includes elemental silver deposited on a high surface area alumina matrix. In one form of the method the active oxidizer formed is predominantly hydrogen peroxide, whereas in a second form of the method an oxidizable salt is added to the water so that the active oxidizer formed is predominantly oxidized ions of the salt. The method can be effectively carried out by adding oxygen in the form of O.sub.2 ozone to the water prior to exposing it to the catalyst.
REFERENCES:
patent: 3268444 (1966-08-01), Renn
patent: 3433580 (1969-03-01), Deuringer
patent: 3702298 (1972-11-01), Zsoldos et al.
patent: 3788982 (1974-01-01), Zsoldos, Jr. et al.
patent: 3883442 (1975-05-01), McArthur
patent: 3912626 (1975-10-01), Ely et al.
patent: 3963645 (1976-06-01), Gelbein
patent: 4007118 (1977-02-01), Ciambrone
patent: 4029578 (1977-06-01), Turk
patent: 4040982 (1977-08-01), Basila et al.
patent: 4092245 (1978-05-01), Franks et al.
patent: 4116859 (1978-09-01), Merkl
patent: 4198296 (1980-04-01), Doumas et al.
patent: 4379778 (1983-04-01), Dalton, Jr. et al.
patent: 4393038 (1983-07-01), Sun et al.
patent: 4396512 (1983-08-01), Beauman et al.
patent: 4407865 (1983-10-01), Nice
patent: 4608247 (1986-08-01), Heinig, Jr.
patent: 4751005 (1988-06-01), Mitui et al.
patent: 4784765 (1988-11-01), Cohen
patent: 5011602 (1991-04-01), Totani et al.
patent: 5130033 (1992-07-01), Thornhill
patent: 5145587 (1992-09-01), Ishii et al.
patent: 5178768 (1993-01-01), White, Jr.
patent: 5192452 (1993-03-01), Mitsui et al.
Fountainhead Technologies, Inc.
Nessler Cynthia L.
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