Patent ID: 7497953
Filing Date: 2009-03-03
Classification: C02F

Abstract:
1. A method of treating water circulating in a water flow circuit, from which water flow circuit water is lost and to which make up water is added, to control scale, biofouling, corrosion, and microbiological contamination comprising the steps of: passing the water through at least one conditioning unit to inhibit scale deposits and associated organic nutrients from forming on flooded surfaces of the water flow circuit, said conditioning unit producing calcium carbonate particles which coagulate with the organic nutrients in the water; removing the calcium carbonate particles that are coagulated with the organic nutrients from the water; adding a trace level of iodine to the circulating water to control said microbiological contamination; and adding a trace level of zinc to the circulating water for inhibiting residual iodine-resistant algal and bacterial organisms and corrosion in said water flow circuit.