Abstract
When recirculating cooling tower systems are used as a source of cooling water for plant operations, quality and composition of the initial and make-up water systems are not the only factors to be considered when selecting an inhibitor. Also important are the contaminating factors introduced from the atmosphere.
This paper describes a situation wherein at one plant the initial inhibitor treatment became ineffective due to expansion of plant activities and introduction of additional and greater amounts of atmospheric contamination. The value of laboratory screening tests followed by plant tests to assure proper protection are discussed. As a result of this incident the value of continuous testing in the field in a versatile and ever-growing plant is reported. 4.6.4
