Method for removing ammonia from ammonia contaminated fly ash
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United States of America Patent
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Jun 20, 2000
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app pub date -
Feb 24, 1999
filing date -
Feb 24, 1999
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Abstract
A method for removing ammonia from coal fly ash contaminated by ammonium salts is disclosed. The method involves the addition of small amounts of water, and in some cases, small amounts of an alkali source, to the fly ash to liberate the ammonia trapped therein. The ammonia liberation may be further aided by vigorous mixing of the fly ash.
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