IMPROVED WATER TREATMENT SYSTEM

Title:

IMPROVED WATER TREATMENT SYSTEM

Document Type and Number:

WIPO Patent Application WO1997046305

Kind Code:

A3

Abstract:

The water treatment apparatus utilizes membrane separation technology to separate clean product water from a contaminated water source. An improved valve (62, 64, 514) comprising a hollow cylindrical member (66, 84, 560), a valve member (68, 92, 566) slidably arranged within the hollow cylindrical member (66, 84, 560), and an interior channel (74, 86, 564) extending along at least a portion of the cylindrical member is provided. The improved valve (68, 64, 514) is arranged to provide a number of positions including a closed position, flush positions and processing positions. These positions are arranged by axial movement of a valve member (68, 92, 566) along the cylindrical bore (74, 86, 564) of the valve body (66, 84, 560). A high pressure seal (310) is provided for use with submersible electric pumps (270) employed in the water treatment apparatus. The high pressure seal (310) provides a means for closing an opening (314) in a wall (316) of a housing containing high pressure water and for sealing around wires (318) extending through the opening (314). This seal (310) may also be used with any other electrical device used under similar conditions. A tank (510) for use with smaller water treatment apparatus is also provided. This tank (510) is basically cylindrical with two part cylindrical recesses (532, 533) parallel to the axis of the tank (510) and lying along one side of the tank. Each recess (532, 533) receives a respective one of the cylindrical pump body (513) and the cylindrical reactor body (515). The pump (513) and reactor (515) are therefore efficiently stored within the cylindrical surface of the main tank (510).

Inventors:

HANEY HAROLD E (CA)
HEISTAD RUDY (CA)
CHUCHMUCH STAN (CA)

Application Number:

PCT/CA1997/000378

Publication Date:

April 02, 1998

Filing Date:

June 02, 1997

Export Citation:

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Assignee:

HANEY HAROLD E (CA)
HEISTAD RUDY (CA)
CHUCHMUCH STAN (CA)

International Classes:

B01D61/02; B01D61/08; B01D61/10; B01D61/12; B01D63/10; B01D65/00; B01D65/02; C02F1/44; (IPC1-7): B01D61/02; C02F1/44; B01D65/02

Domestic Patent References:

WO1993024419A1	1993-12-09
WO1993024212A1	1993-12-09
WO1980000310A1	1980-03-06

Foreign References:

US4623467A	1986-11-18
US3856676A	1974-12-24
EP0126714A2	1984-11-28
EP0678326A1	1995-10-25
US4169789A	1979-10-02
US3786924A	1974-01-22
DE4224690A1	1994-01-27

Other References: