Method and device for scrubbing ammonia from air exhausted...

Details Method and device for scrubbing ammonia from air exhausted... Method and device for scrubbing ammonia from air exhausted...

2007-03-27

2007-03-27

Price, Thomas (Department: 3643)

Animal husbandry

Confining or housing

Permanent building

Reexamination Certificate

active

11003540

ABSTRACT:
Ammonia in the air exhausted from animal containment facilities may be removed by scrubbing the air with a solution of a suitable salt of an acidic proton donor such as alum. Ammonia may be removed from the air within any enclosed animal building which includes at least one air inlet and at least one outlet, a ventilation system having an air mover effective to draw fresh air into the building through the inlet and exhaust contaminated air through the outlet, and an air scrubber in communication with the outlet. Prior to exhausting the air into the environment, the air is passed through the scrubber where it is contacted with a solution of the salt of an acidic proton donor effective for flocculating ammonia therein. The flocculated ammonia may then be removed from the solution, which may then be recycled to the scrubber.

REFERENCES:
patent: 3966450 (1976-06-01), O'Neill et al.
patent: 5017203 (1991-05-01), Cox et al.
patent: 5666905 (1997-09-01), Mackin et al.
patent: 5865143 (1999-02-01), Moore, Jr.
patent: 5890454 (1999-04-01), Moore, Jr.
patent: 5961968 (1999-10-01), Moore, Jr.
patent: 6346240 (2002-02-01), Moore, Jr.
patent: 6358729 (2002-03-01), Ferranti
patent: 4233478 (1994-04-01), None
patent: WO 93/06063 (1993-04-01), None

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