Method for reducing turbidity in laundry waste water
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United States of America Patent
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Apr 29, 1997
Grant Date -
N/A
app pub date -
Mar 1, 1996
filing date -
Mar 1, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for reducing turbidity in laundry waste water comprising the steps of treating said water with effective amounts of a first polymer comprised of dimethyl dialkyl ammonium chloride (DMDAAC) and dialkyl diallyl ammonium monomers (DADAAX) other than DMDAAC having alkyl groups with from 8 to 18 carbon atoms and counterions with an ionization constant greater than 10.sup.-8, and a second cationic, nonionic or anionic acrylamide polymer is disclosed.
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