Microwave enhanced stabilization of copper in artificially contaminated soil

Hua Zhang, Zhiliang Zhu, Noboru Yoshikawa

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Microwave processing was used to stabilize copper ions in soil samples. Its effects on the stabilization efficiency were studied as a function of additive, microwave power, process time, and reaction atmosphere. The stabilization efficiency of the microwave process was evaluated based on the results of the toxicity characteristic leaching procedure (TCLP) test. The results showed that the optimal experimental condition contained a 700W microwave power, 20 min process time and 3 iron wires as the additive, and that the highest stabilization efficiency level was more than 70%. In addition, the different reaction atmospheres showed no apparent effect on the stabilization efficiency of copper in the artificially contaminated soil. According to the result of the Tessier sequential extraction, the partial species of copper in the contaminated soil was deduced to transform from unstable species to stable states after the microwave process.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalFrontiers of Environmental Science and Engineering in China
Volume5
Issue number2
DOIs
Publication statusPublished - 2011 Jun 1

Keywords

  • copper
  • microwave
  • stabilization

ASJC Scopus subject areas

  • Environmental Science(all)

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