Towards development of an ozone compatible cooling water treatment
- Nalco Chemical Co., Naperville, IL (United States)
The use of ozone as a biocide in conjunction with conventional chemical treatment for corrosion, scale and deposit control was investigated using bench top and process simulation experiments. Aspects of aqueous ozone chemistry relevant to cooling water operation were discussed. For a given water chemistry, the degradation kinetics of a given chemical vs. microbial kill rate was identified as the parameter of interest. A relatively ozone resistant phosphonate CaCO{sub 3} scale inhibitor and a calcium phosphate dispersant were identified. None of the commercially available yellow metal corrosion inhibitors, including tolyltriazole (TT) and butylbenzotriazole (BBT) were found to be ozone compatible. Results from a field application where ozone is used in conjunction with an identified ozone compatible treatment are presented.
- OSTI ID:
- 82988
- Report Number(s):
- CONF-940222--
- Country of Publication:
- United States
- Language:
- English
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