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Comparison of As, Ni, Zn, Cd, and Pb removals using treatment agents

Title
Comparison of As, Ni, Zn, Cd, and Pb removals using treatment agents
Author
전병훈
Keywords
heavy metal; adsorption; precipitation; leaching
Issue Date
2012-02
Publisher
Taylor & Francis
Citation
Environmental Technology, 2012, 33(4), P.445-454
Abstract
The removal of heavy metals, such as As, Ni, Zn, Cd and Pb, onto limestone, starfish, black shale and concrete from wastewater was studied. These materials, with a high capacity for heavy metals, can be obtained and employed as alternative low-cost substitutes. Various parameters, such as the neutralization capacity, changes in pH, redox potential and electric conductivity as a function of time, were quantified. Of the studied treatment agents, concrete showed high neutralization efficiency for acid mine drainage and maintained a pH value above 11. The adsorption of heavy metals was influenced by the compositions of the treatment agents. The experimental results of leaching revealed no significant follow-up release from any of the treatment agents. The results suggest that concrete could be used successfully for the treatment of mixed metal-contaminated wastes.
URI
https://www.tandfonline.com/doi/abs/10.1080/09593330.2011.579180http://hdl.handle.net/20.500.11754/67433
ISSN
0959-3330
DOI
10.1080/09593330.2011.579180
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > EARTH RESOURCES AND ENVIRONMENTAL ENGINEERING(자원환경공학과) > Articles
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