The application of rapid small-scale column tests in iron-based packed bed arsenic treatment systems

Mohammad Badruzzaman, Paul Westerhoff

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

The rapid small-scale column test (RSSCT) is applicable to simulate pilot-scale performance for arsenate adsorption onto porous iron-based adsorbents. Commercially available granular ferric hydroxide (GFH) and Bayoxide Sorb33 (E33) have been evaluated for arsenate removal in this study. The BET surface area of GFH is 236 m2/g and for E33 is 129 m2/g. Both GFH and E33 possess identical pore size distribution. Proportional diffusivity (PD) and constant diffusivity (CD) based RSSCTs have been conducted with GFH and E33 and compared against corresponding pilot column performance. PD-RSSCTs simulated pilot column breakthrough curves reasonably well, but CD-RSSCTs failed to correspond pilot scale performance. The column arsenate adsorption density (qcolumn) varies from 0.3 - 0.4 μg arsenate/mg dry GFH and 0.3-1.53 μg arsenate/mg dry E33 for GFH and E33 respectively depending upon water quality.

Original languageEnglish (US)
Title of host publicationAdvances in Arsenic Research - Integration of Experimental and Observational Studies and Implications for Mitigation
EditorsPeggy O'Day, Dimitrios Vlassopoulos, Xiaoguang Meng, Liane Benning
Pages268-283
Number of pages16
StatePublished - Dec 1 2006

Publication series

NameACS Symposium Series
Volume915
ISSN (Print)0097-6156

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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  • Cite this

    Badruzzaman, M., & Westerhoff, P. (2006). The application of rapid small-scale column tests in iron-based packed bed arsenic treatment systems. In P. O'Day, D. Vlassopoulos, X. Meng, & L. Benning (Eds.), Advances in Arsenic Research - Integration of Experimental and Observational Studies and Implications for Mitigation (pp. 268-283). (ACS Symposium Series; Vol. 915).