Comparison of As, Ni, Zn, Cd, and Pb removals using treatment agents
- Authors
- Choi, Jaeyoung; Yang, Jung-Seok; Park, Young Tae; Kim, Jong-Oh; Kim, Ki-Jun; Shim, Yon-Sik; Kwon, Hyun-Ho; Khan, Moonis Ali; Park, Jae-Woo; Um, Jeong-Gi; Jeon, Byong-Hun
- Issue Date
- Feb-2012
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- heavy metal; adsorption; precipitation; leaching
- Citation
- ENVIRONMENTAL TECHNOLOGY, v.33, no.4, pp.445 - 454
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL TECHNOLOGY
- Volume
- 33
- Number
- 4
- Start Page
- 445
- End Page
- 454
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/166328
- DOI
- 10.1080/09593330.2011.579180
- ISSN
- 0959-3330
- 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.
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