Controlled production and release of oxygen activated...

Details Controlled production and release of oxygen activated... Controlled production and release of oxygen activated...

2007-11-06

2007-11-06

Griffin, Walter D. (Department: 1709)

Liquid purification or separation

Processes

Chemical treatment

C510S224000, C510S294000, C510S298000, C510S349000, C510S441000

Reexamination Certificate

active

11157537

ABSTRACT:
Waste in a black or gray water holding tank is treated by an oxygen activated biocide by the addition of tetra acetyl ethylene diamine (TAED) and a peroxygen compound. Hydrogen peroxide and/or peracetic acid are released over a period of time and thus maintained in the wastewater solution. Peracetic acid under controlled release conditions dissipates prior to the wastewater being deposited in a wastewater treatment plant.

REFERENCES:
patent: 3082107 (1963-03-01), Kiefer
patent: T0102905 (1983-04-01), Kibbel, Jr.
patent: 5185080 (1993-02-01), Boyle
patent: 5185356 (1993-02-01), Backhouse et al.
patent: 5206168 (1993-04-01), Boyle
patent: 5207899 (1993-05-01), Boyle
patent: 5287967 (1994-02-01), Backhouse et al.
patent: 6380141 (2002-04-01), Gordon
patent: 2001/0009892 (2001-07-01), Bonsall
Kibbel, U.S. Appl. No. 06/308,625, filed Oct. 5, 1981, laid open to public inspection on Apr. 5, 1983.

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