Title:
【発明の名称】水処理システム及びpH調節を含む水処理法
Document Type and Number:
Japanese Patent JP2002509802
Kind Code:
A
Abstract:
A water treatment system and process for removing weakly ionized and/or organic materials from the water by intra-system pH adjustment. An exemplary embodiment of the system includes an inlet through which a feedstream passes into a first chemical treating unit wherein the pH of the feedstream is maintained below about 7 to substantially reduce a concentration of weakly basic components in the water by chemical conversion to a more ionized state. A first water treatment unit is positioned downstream of the first chemical treating unit to substantially remove ionized components in the stream, and produce a first product stream. In various embodiments, the first water treatment unit can be selected from the group consisting of a media filter unit, a water softener unit, a dechlorination unit, and combinations thereof. The first product stream is treated downstream of the first water treatment unit in a second chemical treating unit to maintain the pH of the first product stream above about 7 to substantially reduce a concentration of weakly acidic components in the water by chemical conversion to a more ionized state. A second water treatment unit is positioned downstream of the second chemical treating unit to substantially remove the ionized components, and produce a second product stream, which exits the system through a purified water outlet positioned downstream of the second water treatment unit.
Inventors:
Arbor, John
Wood, John
Zocco Rante, Gary
Ganj Sea, Ganj
Wood, John
Zocco Rante, Gary
Ganj Sea, Ganj
Application Number:
JP2000541100A
Publication Date:
April 02, 2002
Filing Date:
March 29, 1999
Export Citation:
Assignee:
United States Filter Corporation
International Classes:
C02F1/44; C02F1/28; C02F1/42; C02F1/469; C02F1/58; C02F1/60; C02F1/66; C02F9/00; C02F1/32; (IPC1-7): C02F1/44; C02F1/28; C02F1/42; C02F1/469; C02F1/58; C02F1/60; C02F9/00
Attorney, Agent or Firm:
Kazuo Shamoto (5 outside)