Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Impact of NOM character on copper adsorption by trace ferric hydroxide from iron corrosion in water supply system

    187302_187302.pdf (816.8Kb)
    Access Status
    Open access
    Authors
    Zhan, Weixi
    Sathasivan, A.
    Joll, Cynthia
    Wai, G.
    Heitz, Anna
    Kristiana, Ina
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Zhan, Weixi and Sathasivan, Arumugam and Joll, Cynthia and Wai, Grace and Heitz, Anna and Kristiana, Ina. 2012. Impact of NOM character on copper adsorption by trace ferric hydroxide from iron corrosion in water supply system. Chemical Engineering Journal. 200-202: pp. 122-132.
    Source Title
    Chemical Engineering Journal
    DOI
    10.1016/j.cej.2012.06.018
    ISSN
    13858947
    Remarks

    NOTICE: this is the author’s version of a work that was accepted for publication in Chemical Engineering Journal. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemical Engineering Journal, Vol.200-202, August, 2012. DOI:10.1016/j.cej.2012.06.018

    URI
    http://hdl.handle.net/20.500.11937/32855
    Collection
    • Curtin Research Publications
    Abstract

    The fate of trace concentrations of cupric sulfate (<0.4 mg/L) dosed into chloraminated distribution systems to inhibit nitrification has been shown in this study to be controlled by at least two crucial factors: the character of natural organic matter (NOM) and iron hydroxide corrosion products present at low concentrations (<2 mg/L). This research quantified the removal of Cu(II) ions added into waters containing trace Fe(OH)3 flocs and the effect of NOM of different character on this removal. The dominant dissolved copper species in NOM-containing waters were found to be Cu(II)–NOM complexes. Both intramolecular chelation and intermolecular complexation can occur, with the latter occurring preferentially and resulting in the aggregation of smaller organic molecules to form larger molecules. The presence of ferric hydroxide flocs when Cu(II) ions were added into NOM-containing waters was shown to result in removal of Cu(II) ions, presumably as Cu(II)–NOM complexes. This removal was through adsorption processes obeying Freundlich isotherms, although the presence of larger NOM molecules and heterogeneous copper species (e.g. Cu(OH)2(s) and CuO(s)) appeared to shield smaller Cu(II)–NOM complexes from adsorption to some extent. For the strategy of inhibition of nitrification in distribution systems by the addition of Cu(II) ions, complexation of Cu(II) ions by NOM and adsorption of Cu(II)–NOM complexes by ferric hydroxide flocs released from pipe walls pose significant operational challenges to maintaining the concentration of Cu(II) ions through the distribution system.

    Related items

    Showing items related by title, author, creator and subject.

    • Effect of iron corrosion on the fate of dosed copper to inhibit nitrification in chloraminated water distribution system
      Zhan, Weixi (2011)
      Nitrification has been acknowledged as one of the major barriers towards efficient chloramination in water supply distribution systems. Many water utilities employing monochloramine as the final disinfectant have been ...
    • Functionalized layered double hydroxides composite bio-adsorbent for efficient copper(II) ion encapsulation from wastewater
      Khandaker, S.; Hossain, M.T.; Saha, P.K.; Rayhan, U.; Islam, A.; Choudhury, T.R.; Awual, Rabiul (2021)
      In this study, naturally abundant and inexpensive bamboo was used to make cheaper activated charcoal for efficient encapsulation of toxic copper (Cu(II)) ion from wastewater. The functionalized bamboo charcoal-Layered ...
    • Effectiveness of Ferric Salts to Remove Low Levels of Dosed Copper from NOM-Containing Natural Water
      Zhan, Weixi; Sathasivan, Arumugam; Nolan, P.; Koska, L.; Heitz, Anna; Joll, Cynthia (2009)
      Water utilities dose copper in drinking water systems to inhibit/kill microorganisms including algae. Under conditions observed in the systems, the majority of dosed copper is reported to be in dissolved forms of Cu-NOM ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.