Liquid purification or separation – Processes – Chemical treatment
Patent
1990-10-09
1992-03-17
Silverman, Stanley S.
Liquid purification or separation
Processes
Chemical treatment
210698, 210764, 514642, C02F 150, C02F 168
Patent
active
050966014
ABSTRACT:
A method for controlling zebra mussels in aqueous systems comprising treating aqueous systems which contain zebra mussels or which are prone to zebra mussel infestation with an effective amount of a composition comprising a) a water-soluble dialkyl diallyl quaternary ammonium polymer (polyquat); and b) didecyl dimethyl ammonium halide. A preferred polymer is a poly(quaternary ammonium) compound having the recurring structure [DMDAAX.sup.- ] resulting from the polymerization of monomeric dimethyl diallyl ammonium X.sup.-, wherein X.sup.- is any suitable anion.
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Donlan Rodney M.
Muia Ramon A.
Calgon Corporation
DiPrima J. F.
McCarthy Neil M.
Mitchell W. C.
Silverman Stanley S.
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