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

    Dissolved Organic Carbon Reduces Uranium Bioavailability and Toxicity. 1. Characterization of an quatic Fulvic Acid and Its Complexation with Uranium[VI]

    Access Status
    Fulltext not available
    Authors
    Trenfield, M.
    McDonald, Suzanne
    Kovacs, K.
    Lesher, E.
    Pringle, J.
    Markich, S.
    Ng, J.
    Noller, B.
    Brown, P.
    Van Dam, R.
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Trenfield, Melanie and McDonald, Suzanne and Kovacs, Krisztina and Lesher, Emily and Pringle, Jennifer and Markich, Scott and Ng, Jack and Noller, Barry and Brown, Paul and Van Dam, Rick. 2011. Dissolved Organic Carbon Reduces Uranium Bioavailability and Toxicity. 1. Characterization of an quatic Fulvic Acid and Its Complexation with Uranium[VI]. Environmental Science and Technology 45: pp. 3075-3081.
    Source Title
    Environmental Science and Technology
    DOI
    10.1021/es103330w
    ISSN
    0013936X
    School
    Curtin Water Quality Research Centre (Industry Research Centre)
    URI
    http://hdl.handle.net/20.500.11937/42207
    Collection
    • Curtin Research Publications
    Abstract

    Fulvic acid (FA) from a tropical Australian billabong (lagoon) was isolated with XAD-8 resin and characterized using size exclusion chromatography, solid state cross-polarization magic angle pinning, 13C nuclear magnetic resonance spectroscopy, elemental analysis, and potentiometric acid-base fitration. Physicochemical characteristics of the billabong FA were comparable with those of the Suwannee River Fulvic Acid (SRFA) standard. The greater negative charge density of the billabong FA suggested it contained protons that were more weakly bound than those of SRFA, with the potential for billabong water to complex less metal contaminants, such as uranium (U). This may subsequently influence the toxicity of metal contaminants to resident freshwater organisms. The complexation of U with dissolved organic carbon (DOC) (10 mg L-1) in billabong water was calculated using the HARPHRQgeochemical speciation model and also measured using flow field-flow fractionation combined with inductively coupled plasma mass-spectroscopy. Agreement between both methods was very good (within 4% as U-DOC). The results suggest that in billabong water at pH 6.0, containing an average DOC of 10 mg L-1 and a U concentration of 90 g L-1, around 10% of U is complexed with DOC.

    Related items

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

    • Reaction of bromine and chlorine with phenolic compounds and natural organic matter extracts - Electrophilic aromatic substitution and oxidation
      Criquet, J.; Rodriguez, E.; Allard, Sebastian; Wellauer, S.; Salhi, E.; Joll, C.; von Gunten, U. (2015)
      Phenolic compounds are known structural moieties of natural organic matter (NOM), and their reactivity is a key parameter for understanding the reactivity of NOM and the disinfection by-product formation during oxidative ...
    • Studies of the saturate and aromatic hydrocarbon unresolved complex mixtures in petroleum
      Warton, Benjamin (1999)
      This thesis reports the results of investigations carried out into the composition of the saturate and aromatic unresolved complex mixtures (UCMs) in crude oils. It is divided into two sections. Section A reports on studies ...
    • Sulfate radicals induced from peroxymonosulfate by cobalt manganese oxides (CoxMn3−xO4) for Fenton-Like reaction in water
      Yao, Y.; Cai, Y.; Wu, G.; Wei, F.; Li, X.; Chen, H.; Wang, Shaobin (2015)
      A series of CoxMn3−xO4 particles as Fenton-like solid catalysts were synthesized, and their catalytic performance in oxidative degradation of organic dye compounds in water was investigated. The surface morphology and ...
    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.