Arsenic speciation and removal in continuous-flow packed bed adsorption reactors was investigated using a strong base anion exchange resin as the adsorbent. Preloading of the media was investigated passing arsenic-free Lake Washington water through columns packed with the resin prior to feeding influent spiked with arsenic. NOM preloading did not affect the systems, but sulfate adsorbed during the preloading and the subsequent adsorption steps caused chromatographic displacement of the adsorbed arsenic. Significant arsenic speciation changes occurred in the arsenic-spiked feeding solution that need further investigation.
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Research Article| September 01 1998
Arsenic removal in fresh and nom-preloaded ion exchange packed bed adsorption reactors
F. G. A. Vagliasindi;
F. G. A. Vagliasindi
*Doctoral Candidate, Department of Civil and Environmental Engineering, University of Washington, Seattle, WA 98105-2700(USA), and Research Associate, Civil Engineering Department, University of Salerno, 84084 Fisciano (SA), Italy
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Water Sci Technol (1998) 38 (6): 337–343.
F. G. A. Vagliasindi, Mark M. Benjamin; Arsenic removal in fresh and nom-preloaded ion exchange packed bed adsorption reactors. Water Sci Technol 1 September 1998; 38 (6): 337–343. doi: https://doi.org/10.2166/wst.1998.0269
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