IP Library Granted Patent US 7,384,565
Granted Patent B2
US 7,384,565 · App. 11/247,858 · Granted Jun 10, 2008

Method for chlorite removal

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Quick Facts
Patent No.
US 7,384,565
App. No.
11/247,858
Granted
Jun 10, 2008
Kind
B2
Abstract

The invention is directed to a process for removing chlorite ion from a body of water containing unacceptably high levels of chlorite comprising adding to said body of water a chlorite removal chemical selected from the group comprising sodium dichloroisocyanurate dihydrate, sodium dichloroisocyanurate, trichloroisocyanurate, polyaluminum chloride, sodium permanganate, potassium permanganate, and catalase enzyme.

Claims (7)

1. A process for removing chlorite ion from a body of water containing unacceptably high levels of chlorite comprising adding to said body of water a chlorite removal chemical selected from the group consisting of sodium dichloroisocyanurate dihydrate, sodium dichloroisocyanurate, trichloroisocyanurate, polyaluminum chloride, sodium permanganate, potassium permanganate, and catalase enzyme in the ratio of about 0.000001 to 100 parts by weight of chlorite removal chemical to 1 part of chlorite ion.

2. The process of claim 1 wherein the body of water is a stream.

3. The process of claim 1 wherein the body of water is potable water.

4. The process of claim 1 wherein the body of water is plant effluent.

5. The process of claim 1 wherein the body of water is used in cooling tower applications.

6. The process of claim 1 wherein the body of water is waste water.

7. A process for removing chlorite ion from a body of water containing unacceptably high levels of chlorite comprising adding to said body of water a chlorite removal chemical selected from the group consisting of sodium dichloroisocyanurate dihydrate, sodium dichloroisocyanurate, trichioroisocyanurate, polyaluminum chloride, sodium permanganate, potassium permanganate, and catalase enzyme in an amount of four times a stoichiometric excess of chlorite removal chemical to one part of chlorite ion.

Assignments (11)
RELEASE OF SECURITY INTEREST (REEL/FRAME 032126/0487) Recorded Apr 6, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: SIEMENS WATER TECHNOLOGIES LLC
Reel/Frame 055845/0245 →
RELEASE OF SECURITY INTEREST (REEL/FRAME 032126/0430) Recorded Apr 6, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: SIEMENS WATER TECHNOLOGIES LLC
Reel/Frame 055845/0311 →
CHANGE OF NAME Recorded Feb 7, 2014
From: SIEMENS WATER TECHNOLOGIES LLC
To: EVOQUA WATER TECHNOLOGIES LLC
Reel/Frame 032174/0282 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN) Recorded Jan 24, 2014
From: WTG HOLDINGS III CORP.; WTG HOLDINGS II CORP.; SIEMENS TREATED WATER OUTSOURCING CORP.; SIEMENS WATER TECHNOLOGIES LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 032126/0430 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN) Recorded Jan 24, 2014
From: WTG HOLDINGS III CORP.; WTG HOLDINGS II CORP.; SIEMENS TREATED WATER OUTSOURCING CORP.; SIEMENS WATER TECHNOLOGIES LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 032126/0487 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 1, 2014
From: SIEMENS INDUSTRY, INC.
To: SIEMENS WATER TECHNOLOGIES LLC
Reel/Frame 031896/0256 →
MERGER Recorded Apr 15, 2011
From: SIEMENS WATER TECHNOLOGIES HOLDING CORP.
To: SIEMENS INDUSTRY, INC.
Reel/Frame 026138/0593 →
MERGER Recorded Apr 11, 2011
From: SIEMENS WATER TECHNOLOGIES CORP.
To: SIEMENS WATER TECHNOLOGIES HOLDING CORP.
Reel/Frame 026106/0467 →
MERGER Recorded Oct 11, 2006
From: USFILTER PWS, INC. AND U.S. FILTER WASTEWATER GROUP, INC.
To: SIEMENS WATER TECHNOLOGIES CORP.
Reel/Frame 018376/0964 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 3, 2006
From: ALTIVIA CORPORATION
To: U.S. FILTER WASTEWATER GROUP, INC.
Reel/Frame 017233/0556 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2005
From: HOLDEN, GLENN W.; SIMPSON, GREGORY D.
To: ALTIVIA CORPORATION
Reel/Frame 017092/0216 →