Patent ID: 9452457
Filing Date: 2016-09-27
CPC Classification: A01N,B08B,C02F,C11D

Claim Text:
1. A method of removing biofilm in a water system, the method comprising the steps of: removing water from the water system; adding a volume of fresh water to the water system; adding a treatment composition to the water in the water system after the removing step, the treatment composition comprising a first chelating agent in a concentration in the range of about 0.0005 M to 0.005 M, a second chelating agent in a concentration in the range of about 0.001 M to 0.01 M, and a cationic surfactant in a concentration in the range of about 0.00015 M to 0.0015 M, wherein the concentrations are of these ingredients when mixed with the volume of water in the water system being treated; contacting the water containing the treatment composition with components of the water system for a first period of time to remove biofilm attached to surfaces of the components of the water system; and adding a first amount of biocide to the water in the water system after the treatment composition addition step.