Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing nonmetal element
Reexamination Certificate
2007-01-09
2007-01-09
Wilkins, III, Harry D. (Department: 1742)
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing nonmetal element
C205S742000, C204S233000, C204S234000, C210S668000, C210S677000, C210S681000, C210S750000, C095S158000, C096S193000
Reexamination Certificate
active
10662818
ABSTRACT:
In a sewage treatment plant, dissolved ammonium is extracted from the waste-water stream, and is transferred to a body of secondary water. The secondary water is passed through an electrolysis station, where the ammonium is transformed to nitrogen gas. The capture and transfer can be done by ion-exchange, the electrolysis then being done on the regenerant water. Or the capture and transfer can be done by first transforming the dissolved ammonium to ammonia gas by raising the pH of the waste-water, then passing the ammonia gas through acidic secondary-water, in which the ammonia dissolves, the electrolysis then being done on the acid-water. The electrolysed, ammonium-diminished, secondary-water can be re-used in further capture/transfer episodes. The secondary-water does not mix with the waste-water stream.
REFERENCES:
patent: 3929600 (1975-12-01), Hiasa et al.
patent: 4093544 (1978-06-01), Ross
patent: 4098690 (1978-07-01), Semmens
patent: 5512182 (1996-04-01), Sheikh et al.
patent: 6835298 (2004-12-01), Oloman et al.
patent: 6878284 (2005-04-01), Hasegawa et al.
patent: 3530498 (1987-03-01), None
patent: 029536 (1981-06-01), None
patent: 2383034 (2003-06-01), None
patent: 59039395 (1984-03-01), None
patent: WO97/30941 (1997-08-01), None
Seed Leonard Paul
Shelp Gene Sidney
Anthony Asquith Corp.
ENPAR Technologies Inc.
Wilkins, III Harry D.
LandOfFree
Electrochemical treatment of ammonia in waste-water does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrochemical treatment of ammonia in waste-water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochemical treatment of ammonia in waste-water will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3743352