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http://dx.doi.org/10.14481/jkges.2011.12.10.6

Application of Pulsed Electric Field Treatment for Scaling Prevention  

Choi, Seung-Pil (강릉원주대학교 공과대학 토목공학과)
Kim, Jong-Oh (강릉원주대학교 공과대학 토목공학과)
Publication Information
Journal of the Korean GEO-environmental Society / v.12, no.10, 2011 , pp. 51-56 More about this Journal
Abstract
This study was conducted to investigate the applicability of pulsed electric field (PEF) treatment for the prevention of scaling formation and membrane fouling reduction. To validate the effect of PEF and to identify the mechanism, some experiments with and without PEF treatment were carried out. PEF treatment affected the precipitation of $CaCO_3$ by which $CaCO_3$ particles were actively grown and sedimented. It was confirmed that the calcium ions were decreased as 78% and particle size was grown by PEF treatment. It was also verified that the crystalline structure of $CaCO_3$ was transformed by PEF treatment from Aragonite, which is formed at a high temperature and hard to be removed, to Calcite being stable at room temperature. In PEF treatment, permeate volume and permeation flux were greater than that of without PEF, case while Langelier Index(LI) decreased. From the experiment results, PEF treatment is believed to be an effective method to prevent scaling formation and to mitigate $CaCO_3$ fouling as the pretreatment of membrane filtration.
Keywords
Pulsed electric field; Calcium carbonate; Calcite; Scaling; Fouling;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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