Abstract:
:A number of bench scale laboratory column tests were carried out using a newly designed and developed electrokinetic cell to investigate the fundamental behavior of zinc-spiked kaolin clay subjected to an electric field. Laboratory investigations focused on (i) zinc migration by the combined effects of electromigration and electro-osmosis and (ii) the electrically induced desorption characteristics of zinc-contaminated kaolin that occurred during processing. The correlations of the applied voltage gradient, electro-osmotic flow rate, and the development of a pH gradient were examined and evaluated. The results showed that the removal efficiency was high during the early stage of processing due to rapid desorption by electrokinetic effects in the cathode region. However, the majority of zinc migrating from the anode was precipitated due to the high pH environment in the cathode region.
journal_name
Environ Geochem Healthjournal_title
Environmental geochemistry and healthauthors
Lee MH,Kamon M,Kim SS,Lee JY,Chung HIdoi
10.1007/s10653-007-9100-6subject
Has Abstractpub_date
2007-08-01 00:00:00pages
281-8issue
4eissn
0269-4042issn
1573-2983journal_volume
29pub_type
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