Method for off-line cleaning of cooling towers
AssigneeEcolab USA Inc.
InventorsLanhua Hu, Amit Gupta
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Abstract
A method of cleaning a cooling water system is disclosed. The method may include contacting a cooling tower fill with a composition that may include a surfactant and an additive selected from an oxidizing agent, an acid, and any combination thereof when the cooling water system is off-line. The method may include contacting a deposit in the cooling tower fill with the composition. The oxidizing agent may be hydrogen peroxide, sodium hypochlorite, chlorine dioxide, ozone, sodium hypobromite, sodium or potassium permanganate, or any combination thereof. The surfactant may include a C8-C10 alkyl polyglycoside and a C10-C18 alkyl polyglycoside.
Claims19
A method of cleaning a cooling water system, comprising:
- contacting a cooling tower fill with a composition comprising a surfactant and an additive selected from an oxidizing agent, an acid, and any combination thereof, when the cooling water system is off-line.
A method of cleaning cooling water systems, comprising:
- contacting a deposit with a composition comprising about 0.25% to about 50% by weight of hydrogen peroxide;
- and
- contacting the deposit with a surfactant.
Dependencies are inferred from the claim text.