Membrane filtration
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United States of America Patent
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Dec 13, 2005
Grant Date -
N/A
app pub date -
Oct 26, 2000
filing date -
Dec 9, 1999
priority date (Note) -
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Abstract
A method for membrane filtration of effluent water containing suspended matter reduces membrane clogging and improves filtration capacity of the membrane. The method includes adding a dose of a preselected coagulation reactant to the effluent before the effluent passes over the membrane. The added dose is a fraction of the coagulating reactant dose (X) that would render the zeta potential of the effluent equal to zero. The range of the added dose is X/30-X/80. The suspended matter in the effluent is subjected to the added dose of coagulation reactant for destabilizing the suspended matter.
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