Water treatment
AssigneeItalmatch Chemicals Gb Limited
InventorsJeffrey Frank Kramer, Christy Colleen Wentworth
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Abstract
A method treats an aqueous system to inhibit growth of one or more micro-organisms therein and/or to reduce the number of live micro-organisms therein. The method includes adding treatment agents to an aqueous system wherein said treatment agents include (a) a phosphonium compound; and (b) a compound having formula: M(XO2)n wherein: M is a Group I or Group II metal; X is a halogen; and n is 1 or 2.
Claims19
A method of treating an aqueous system to inhibit growth of one or more micro-organisms therein and/or to reduce the number of live micro-organisms therein, wherein the method comprises adding treatment agents to an aqueous system having a total dissolved solids (TDS) of 10,000 mg l−1 or greater and wherein said treatment agents comprise:
- (a) tri-n-butyl n-tetradecyl phosphonium chloride (TTPC);
- and
- (b) a compound having formula:
- M(XO2)n
- wherein:
- M is a Group I or Group II metal;
- X is a halogen;
- and
- n is 1 or 2.
An aqueous system comprising a combination of:
- (a) tri-n-butyl n-tetradecyl phosphonium chloride (TTPC);
- and
- (b) a compound having formula:
- M(XO2)n
- wherein:
- M is a Group I or Group II metal;
- X is a halogen;
- and
- n is 1 or 2;
- wherein the aqueous system has a total dissolved solids (TDS) of 10,000 mg l−1 or greater.
A biocidal composition comprising a combination of:
- (a) tri-n-butyl n-tetradecyl phosphonium chloride (TTPC);
- and
- (b) a compound having formula:
- M(XO2)n
- wherein:
- M is a Group I or Group II metal;
- X is a halogen;
- and
- n is 1 or 2;
- wherein the biocidal composition treats an aqueous system having a total dissolved solids (TDS) of 10,000 mg l−1 or greater.
A method of inhibiting or preventing the growth of one or more micro-organisms in a water-based liquid having a total dissolved solids (TDS) of 10,000 mg l−1 or greater, wherein the method comprises adding treatment agents to said water-based liquid and wherein said treatment agents comprise:
- (a) a phosphonium compound;
- and
- (b) a compound having formula:
- M(XO2)n
- wherein:
- M is a Group I or Group II metal;
- X is a halogen;
- and
- n is 1 or 2.
Dependencies are inferred from the claim text.