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Design Of A Novel Cellulose-based Adsorbent For Use In Heavy Metal Recovery From Aqueous Waste Streams

WIT Transactions on Ecology and the Environment, 2006, Vol.95

2006. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the associated terms available at https://www.witpress.com/elibrary . ;ISSN: 1746-448X ;EISSN: 1743-3541 ;DOI: 10.2495/WP060481

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  • Title:
    Design Of A Novel Cellulose-based Adsorbent For Use In Heavy Metal Recovery From Aqueous Waste Streams
  • Author: D. W. O’Connell1 ; Birkinshaw, C ; T. F. O’Dwyer
  • Subjects: Adsorbents ; Adsorption ; Aqueous solutions ; Cellulose ; Heavy metals ; Imidazole ; Kinetics ; Lead ; Materials recovery ; Metal ions ; Nickel ; Pulp ; Sorbents ; Waste management ; Waste streams ; Wastewater treatment ; Wood ; Wood pulp
  • Is Part Of: WIT Transactions on Ecology and the Environment, 2006, Vol.95
  • Description: Currently, significant metal-laden waste streams are produced from a number of industries with obvious consequences for the environment. A variety of techniques are being used to treat these wastewaters. One such technique is adsorption and recent focus in this area has been around the preparation of selective adsorbents based on naturally occurring support materials. In our work, a regenerated cellulose wood pulp was grafted with the vinyl monomer glycidyl methacrylate (GMA) and was further functionalised with imidazole to produce a novel adsorbent material, cellulose-g-GMA-imidazole. A series of adsorption studies were carried out on the cellulose-g-GMA-imidazole to assess its capacity in the separate removal of lead and nickel ions (Pb(II), Ni(II)) from aqueous solution. Cellulose-g-GMA-imidazole sorbent showed an uptake of approximately 72 mg g-1 of Pb(II) and 45 mg g-1 of Ni(II) from aqueous solution. The adsorption process in both cases followed the Langmuir model of adsorption and Pb(II) uptake occurred within 30 minutes while Ni(II) uptake was considerably slower at 400 minutes for maximum uptake. In both cases pseudo second order kinetics best describes the overall process for each metal uptake. The cellulose-g-GMA-imidazole material shows significant promise as a sorbent for the removal of both Ni(II) and Pb(II) and other heavy metal ions from aqueous and waste streams.
  • Publisher: Southampton: W I T Press
  • Language: English
  • Identifier: ISSN: 1746-448X
    EISSN: 1743-3541
    DOI: 10.2495/WP060481
  • Source: Alma/SFX Local Collection
    ProQuest Central
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