89-13: Recent Developments in the Operation of Industrial Cooling Tower Systems

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This paper is based on 6-7 years of field experience with zero blowdown systems. Steps for achieving higher tower rate cycles and monitoring systems results are explained. Multiple case histories covering the following cooling tower waters are included: 1) Unsoftened surface or well water makeup, 2) Partially softened makeup water, and 3) 100% softened makeup water without pH control. The remarkable results obtained with all of these makeup waters are outlined in this paper. In terms of fouling and corrosion control, treatments costs, water conservation and environmental impact, this technology is on the leading edge of current water treatment programs. Show more