POLYMER PERFORMANCE IN COOLING WATER - THE INFLUENCE OF PROCESS VARIABLES

The key to the efficacy of phosphate and phosphonates in stabilized ph osphate and all-organic cooling water treatment (CWT) programs is the presence and performance of polymeric inhibitors/dispersants. The perf ormance of polymeric additives used in CWT programs can be adversely i mpacted by the presence of iron, phosphonate, or cationic polymer and influenced by a variety of process variables including system pH and t emperature. In this article, the performance of several polymeric addi tives is evaluated under a variety of stressed conditions.