METHOD FOR DEWATERING SUSPENSIONS OF SOLID PARTICLES IN WATER
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United States of America Patent
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Feb 5, 2015
app pub date -
Jul 31, 2013
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Jul 31, 2013
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Abstract
A method for dewatering dispersions of suspended solids by flocculation, using a polymeric flocculant, includes the steps of sequentially adding to the dispersions: at least one water soluble, anionic linear polymer having a molecular weight of at least 1×106 g/mol; and a blend of a water-soluble, cationic structured first polymer having a molecular weight of at least 1×106 g/mol, and a water-soluble, cationic linear second polymer having a molecular weight of at least 1×106 g/mol.
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