Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1991-04-10
1994-03-08
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204269, 204272, 204275, 204276, 204152, 2041415, C02F 1461
Patent
active
052924122
ABSTRACT:
A waste stream contaminated with mercury is purified by flowing the stream cyclically and/or sequentially through at least one electrolytic cell provided with an anode (11) and a cathode (10) made of tin, copper, silver or alloys thereof and optionally comprising other alloying element(s). The cathode (10) is a microporous, high surface area body through which the electrolyte can pass, with the solution sweeping the microporous surfaces. After cycling through one cell or cell module (1) with cathodes of given microporosity, the solution is passed to the next cell or cell module with cathodes of finer miocroporosity. The microporous surfaces are periodically cleaned by counter-current flushing, preferably followed by a rest period. The waste stream may be an acidic waste stream containing organic mercury compounds.
REFERENCES:
patent: 3639118 (1972-02-01), O'Grady
patent: 3764499 (1973-10-01), Okubo et al.
patent: 3899405 (1975-08-01), Iverson et al.
patent: 3970531 (1976-07-01), Recht
patent: 4028236 (1977-06-01), Townsend et al.
patent: 4226685 (1980-10-01), Portal et al.
patent: 4276147 (1981-06-01), Epner et al.
patent: 4436601 (1984-03-01), Branchick et al.
patent: 4643819 (1987-02-01), Heroguelle
patent: 4859295 (1989-08-01), Dietz et al.
Eltech Systems Corporation
Freer John J.
Niebling John
Phasge Arun S,.
LandOfFree
Removal of mercury from waste streams does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removal of mercury from waste streams, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of mercury from waste streams will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-150794