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      Micro-hydrogel Particles Consisting of Hyperbranched Polyamidoamine for the Removal of Heavy Metal Ions from Water

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          Abstract

          A series of micro-hydrogel particles consisting of hyperbranched polyamidoamine (HPAMAM) without any supporting core materials was synthesized via the inverse suspension condensation polymerization of A 2 and B 4 monomers, N,N′-methylenebisacrylamide ( MBA) and ethylenediamine ( EDA). The particles were found to be highly effective when used to remove heavy metal ions, such as cadmium, copper, lead, nickel, zinc, and cobalt, from water, and they could be separated from the water by a simple filtration process. The results of this study demonstrate that crosslinked HPAMAM particles, which can be prepared by a simple and environmentally friendly process, are an attractive absorbent for water purification.

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

          Sandhya Babel, Tonni Kurniawan (2003)
          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.
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            Electrochemical technologies in wastewater treatment

            Guohua Chen (2004)
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              Physico–chemical treatment techniques for wastewater laden with heavy metals

              Tonni Kurniawan, Gilbert Y.S. Chan, Wai-Hung Lo … (2006)
              Article 0 comments Cited 279 times – based on 0 reviews     Review now
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                Author and article information

                Contributors
                Sang Youl Kim: kimsy@kaist.ac.kr
                Journal
                Journal ID (nlm-ta): Sci Rep
                Journal ID (iso-abbrev): Sci Rep
                Title: Scientific Reports
                Publisher: Nature Publishing Group UK (London )
                ISSN (Electronic): 2045-2322
                Publication date (Electronic): 30 August 2017
                Publication date PMC-release: 30 August 2017
                Publication date Collection: 2017
                Volume: 7
                Electronic Location Identifier: 10012
                Affiliations
                [1 ]ISNI 0000 0001 2292 0500, GRID grid.37172.30, Department of Chemistry, , Korea Advanced Institute of Science and Technology (KAIST), ; Daejeon, 34141 Republic of Korea
                [2 ]ISNI 0000 0001 2296 8192, GRID grid.29869.3c, Research Center for Bio-based Chemistry, , Korea Research Institute of Chemical Technology (KRICT), ; Ulsan, 44429 Republic of Korea
                [3 ]ISNI 0000 0004 1791 8264, GRID grid.412786.e, Advanced Materials and Chemical Engineering, , University of Science & Technology (UST), ; Daejeon, 34113 Republic of Korea
                Author information
                http://orcid.org/0000-0002-9369-1597
                Article
                Publisher ID: 10066
                DOI: 10.1038/s41598-017-10066-x
                PMC ID: 5577261
                SO-VID: 811265e6-7495-4724-b959-01a59a403c69
                Copyright © © The Author(s) 2017
                License:

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

                History
                Date received : 27 April 2017
                Date accepted : 3 August 2017
                Categories
                Subject: Article
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                issue-copyright-statement © The Author(s) 2017

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