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Gene Therapy

Water-treatment-apparatus

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Water treatment apparatus

Details

Inventors: Xylander, Kurt;
Assignee:
Primary Examiner: Prescott; Arthur C.
Assistant Examiner:
Attorney, Agent or Firm: Stephens; Richard G.

In a process for purifying an aqueous liquid by flotation of suspended solids with gas bubbles produced by electrolysis between at least one pair of electrodes, at least one of said electrodes, preferably in the form of an endless belt or band, is transported in or through said liquid while said electrolysis and flotation are taking place. Bridging and fouling of the electrodes are thereby minimised.

DETAILED DESCRIPTION The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 1.
Water purification apparatus for purifying dirty water, comprising, in combination: a tank having a first opening for introducing dirty water adjacent one side of said tank, a second opening for removing clean water adjacent an opposite side of said tank, and baffle means extending down on two sides within said tank to separate said openings from a central area at the top of said tank; an endless belt having a plurality of electrodes, said endless belt being trained behind said baffles and through said tank to extend across said tank below said central area near the bottom of said tank; and means for electrically energizing electrodes of said endless belt as they pass below said central area, whereby gas bubbles created by electrolysis from the energization of said electrodes cause solids suspended in the dirty water to be floated to said central area at the top of said tank.
2.
Apparatus according to claim 1 having means for driving said endless belt, and means for guiding movement of said endless belt so that said electrodes pass in succession into, through and out of the water in said tank.
3.
Apparatus according to claim 1 which includes electrical connection means mounted inside said tank to be electrically engaged with and disengaged from said electrodes by movement of said electrodes within said tank.
4.
Apparatus according to claim 1 wherein said endless belt is trained and driven so that each electrode of said belt passes successively downwardly through the upper surface of the water in said tank, generally horizontally through said tank, and upwardly through the upper surface of water in said tank, and wherein said apparatus includes means for removing floated solids from said central area at the top of said tank.
5.
Apparatus according to claim 1 wherein said endless belt comprises a plurality of rigid electrode holder sections flexibly connected together

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