Paper Title:
Species Distribution of Heavy Metals in Enhanced Electrokinetic Removal Process
  Abstract

In this study, in order to evaluate the migration of heavy metals in enhanced electrokinetic removal,visual minteq was adopted to calculate the species distribution of heavy metals in different pH. Most of the heavy metals except arsenic generated the enrichment near the cathode area. Arsenate always existed as anion such as AsO43-、H2AsO4-、HAsO42-. Near the alkaline area ,the main form of heavy metals were alkali metal hydroxides and seriously restricted the migration and removal of heavy metals. The addition of potassium tetroxalate did not change the species distribution of heavy metals obviously.The nitric acid was more efficient than potassium tetroxalate to condition enhanced electrokinetic removal. Nevertheless ,both of two enhancement still need to be impoved to promote the removal efficiency.

  Info
Periodical
Chapter
Chapter 2: Frontiers of Building Materials
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
910-913
DOI
10.4028/www.scientific.net/AMM.71-78.910
Citation
Z. H. Xu, D. W. Li, X. Peng, "Species Distribution of Heavy Metals in Enhanced Electrokinetic Removal Process", Applied Mechanics and Materials, Vols. 71-78, pp. 910-913, 2011
Online since
July 2011
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Price
$32.00
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