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Proceedings of an International Conference on Mitigation of Heat Exchanger Fouling and Its Economic and Environmental Implications

ISSN:
1-56700-172-6 (Print)

TECHNIQUE FOR QUANTIFYING THE SCALE SUPPRESSION EFFECT OF INHIBITORS

David Hasson
WRI Rabin Desalination Laboratory Department of Chemical Engineering Tecnnion − Israel Institute of Technology Haifa 32000 ISRAEL

Raphael Semiat
Rabin Desalination Laboratory, Grand Water Research Institute Wolfson Faculty of Chemical Engineering, Technion − Israel Institute of Technology, Technion City, Haifa, Israel

Abstract

Anti-scalants are widely used to mitigate heat exchanger fouling in cooling water systems and in desalination applications. However, due to the inadequate understanding of inhibition phenomena, choice of an anti-scalant for a particular application from available products is difficult and relies heavily on empiricism. There is a critical need to develop correlative tools that could serve to quantify scale suppression effects. The present paper proposes a technique for characterizing fouling retardation effects induced by anti-scalants, using the well-recognized Kern-Seaton model. Preliminary results obtained from limited available data are encouraging and justify further development of the proposed technique.