Process for removing ammonia from waste waters
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United States of America Patent
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Mar 15, 1994
Grant Date -
N/A
app pub date -
Jul 22, 1992
filing date -
Nov 26, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for removing ammonia, or ammonia and phosphates from industrial agricultural or household effluents by causing precipitation as magnesium ammonium phosphate by means of a liquid reagent containing magnesium and phosphate ions and an acid. The effluents have more than 1 gle of ammoniacal nitrogen and the pH is adjusted to between 9 and 11 after addition of the liquid reagent.
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