C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
204/99.09
C02F 1/46 (2006.01) B01D 21/00 (2006.01) B01D 57/02 (2006.01)
Patent
CA 1196601
A B S T R A C T A method for removing liquid from a chemically-precipitated industrial wastewater sludge comprising introducing the sludge into a treatment vessel containing a pair of spaced apart electrodes, both or one of which may be perforated, comprising an anode and a cathode, said electrodes defining a treatment zone within said vessel between said electrodes and a liquid collection zone associated with each electrode on the side opposite said treatment zone, said sludge at least partially filling said treatment zone and contacting said electrodes; applying a direct electric potential between said anode and cathode thereby causing the liquid phase of the sludge to flow toward said cathode and sludge solids to move toward said anode, said liquid flowing through said cathode into the collection zone associated therewith, and effecting a flow of liquid through said anode into the collection zone associated therewith; and removing the liquid from said collection zones.
384127
Bell Christy W.
Titus Charles H.
Wittle John K.
Borden Ladner Gervais Llp
Electro-Petroleum Inc.
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