42
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Low-cost adsorbents for heavy metals uptake from contaminated water: a review.

      1 ,
      Journal of hazardous materials
      Elsevier BV

      Read this article at

      ScienceOpenPublisherPubMed
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          In this article, the technical feasibility of various low-cost adsorbents for heavy metal removal from contaminated water has been reviewed. Instead of using commercial activated carbon, researchers have worked on inexpensive materials, such as chitosan, zeolites, and other adsorbents, which have high adsorption capacity and are locally available. The results of their removal performance are compared to that of activated carbon and are presented in this study. It is evident from our literature survey of about 100 papers that low-cost adsorbents have demonstrated outstanding removal capabilities for certain metal ions as compared to activated carbon. Adsorbents that stand out for high adsorption capacities are chitosan (815, 273, 250 mg/g of Hg(2+), Cr(6+), and Cd(2+), respectively), zeolites (175 and 137 mg/g of Pb(2+) and Cd(2+), respectively), waste slurry (1030, 560, 540 mg/g of Pb(2+), Hg(2+), and Cr(6+), respectively), and lignin (1865 mg/g of Pb(2+)). These adsorbents are suitable for inorganic effluent treatment containing the metal ions mentioned previously. It is important to note that the adsorption capacities of the adsorbents presented in this paper vary, depending on the characteristics of the individual adsorbent, the extent of chemical modifications, and the concentration of adsorbate.

          Related collections

          Author and article information

          Journal
          J Hazard Mater
          Journal of hazardous materials
          Elsevier BV
          0304-3894
          0304-3894
          Feb 28 2003
          : 97
          : 1-3
          Affiliations
          [1 ] Environmental Technology Program, Sirindhorn International Institute of Technology (SIIT), Thammasat University, P.O. Box 22, 12121, Pathumthani, Thailand. sandhya@siit.tu.ac.th
          Article
          S0304389402002637
          10.1016/s0304-3894(02)00263-7
          12573840
          84e87f0a-fcf9-4b9c-9059-f2d77ae0121c
          History

          Comments

          Comment on this article