IP Library Granted Patent US 7,713,403
Granted Patent B2
US 7,713,403 · App. 11/281,405 · Granted May 11, 2010

Water treatment method and apparatus

Assignee: Hoshizaki Denki Kabushiki Kaisha
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,713,403
App. No.
11/281,405
Granted
May 11, 2010
Kind
B2
Abstract

In a water treatment method, a first embodiment of the treatment method comprises the steps of producing electrolyzed acid water by electrolysis of raw water in an anode chamber of an electrolytic cell with an ion permeable partition membrane; removing volatile component in an acid property of the electrolyzed water; and producing electrolyzed neutral water without the volatile component by electrolysis of the electrolyzed acid water in a cathode chamber of the electrolytic cell.

Claims (24)

1. A water treatment method comprising the steps of:

producing electrolyzed acid water by electrolysis of raw water in an anode chamber of a single electrolytic cell with an ion permeable partition membrane;

removing volatile component including chlorine or trihalomethane in an acid property of the electrolyzed acid water; and

producing electrolyzed neutral water by electrolysis of the electrolyzed acid water in a cathode chamber of the electrolytic cell after removing the volatile component.

2. A water treatment method as set forth in claim 1 , wherein deaeration treatment is adapted to remove volatile component in the electrolyzed acid water.

3. A water treatment method comprising the steps of:

producing electrolyzed alkaline water by electrolysis of raw water in a cathode chamber of a single electrolytic cell with an ion permeable partition membrane;

removing volatile component including trimethylamine in an alkaline property of the electrolyzed alkaline water; and

producing electrolyzed neutral water by electrolysis of the electrolyzed alkaline water in an anode chamber of the electrolytic cell after removing the volatile component.

4. A water treatment method as set forth in claim 3 , wherein deaeration treatment is adapted to remove volatile component in the electrolyzed alkaline water.

5. A water treatment apparatus comprising:

a single electrolytic cell having an anode chamber and a cathode chamber divided by means of an ion permeable partition membrane;

a first supply conduit for supplying raw water into the anode chamber of the electrolytic cell;

a deaeration device connected with the anode chamber of said electrolytic cell for removing volatile component in an acid property of electrolyzed acid water produced by electrolysis of the raw water in the anode chamber and supplied therefrom;

a second supply conduit for supplying the electrolyzed acid water from said deaeration device to the cathode chamber of said electrolytic cell after removal of the volatile component; and

a discharge conduit connected with the cathode chamber to discharge neutral water produced by electrolysis of the electrolyzed acid water in the cathode chamber.

6. A water treatment apparatus as set forth in claim 5 , wherein the deaeration device is adapted to remove chlorine component or trihalomethane in the acid property of the electrolyzed acid water.

7. A water treatment apparatus comprising:

a single electrolytic cell having an anode chamber and a cathode chamber divided by means of an ion permeable partition membrane;

a first supply conduit for supplying raw water into the cathode chamber of the electrolytic cell;

a deaeration device connected with the cathode chamber of said electrolytic cell for removing volatile component in an alkaline property of electrolyzed alkaline water produced by electrolysis of the raw water in the cathode chamber and supplied therefrom;

a second supply conduit for supplying the electrolyzed alkaline water from said deaceation device to the anode chamber of said electrolytic cell after removal of the volatile component; and

a discharge conduit connected with the anode chamber to discharge neutral water produced by electrolysis of the electrolyzed alkaline water in the anode chamber.

8. A water treatment apparatus as set forth in claim 7 , wherein a the deaeration device is adapted to remove trimethylamine in the alkaline property of the electrolyzed alkaline water.

Assignments (2)
CHANGE OF NAME Recorded Sep 14, 2016
From: HOSHIZAKI DENKI KABUSHIKI KAISHA
To: HOSHIZAKI CORPORATION
Reel/Frame 040026/0753 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 12, 2006
From: KAMITANI, YOSHINORI
To: HOSHIZAKI DENKI KABUSHIKI, KAISHA
Reel/Frame 017989/0667 →
Continuity (1)
Related Publication 20070205162A1 · Sep 6, 2007