Application of the extended DLVO approach to mechanistically study the algal flocculation

Reginah Nabweteme, Mi Yoo, Hyuk Sung Kwon, Youn Joong Kim, Geelsu Hwang, Chang Ha Lee, Ik Sung Ahn

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10 Citations (Scopus)

Abstract

The extended DLVO theory was applied to study the mechanism of algal flocculation with clays. Montmorillonite-K10, montmorillonite-KSF, kaolinite, and loess were used as the model clays whereas Microcystis sp. and Prorocentrum minimum were used as the model freshwater algae and marine algae, respectively. Montmorillonite-KSF showed the highest flocculation efficiency not only for Microcystis sp. especially at pH 7 but also for P. minimum. From the application of the extended DLVO theory, the electrostatic and the Lewis acid-base interactions were found to be the dominant mechanisms for the flocculation of Microcystis sp. in freshwater and P. minimum in seawater, respectively.

Original languageEnglish
Pages (from-to)289-294
Number of pages6
JournalJournal of Industrial and Engineering Chemistry
Volume30
DOIs
Publication statusPublished - 2015 Oct 25

Bibliographical note

Funding Information:
We appreciate Dr. Byung Jin Mhin at Department of Chemistry in Paichai University for advices in the preparation of the manuscript. This work is supported by Yonsei University .

Publisher Copyright:
© 2015 The Korean Society of Industrial and Engineering Chemistry.

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

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