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    Phosphate adsorption onto thermally dehydrated aluminate cement granules

    Access Status
    Fulltext not available
    Authors
    Zha, Z.
    Ren, Y.
    Wang, Shaobin
    Qian, Z.
    Yang, L.
    Cheng, P.
    Han, Y.
    Wang, M.
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Zha, Z. and Ren, Y. and Wang, S. and Qian, Z. and Yang, L. and Cheng, P. and Han, Y. et al. 2018. Phosphate adsorption onto thermally dehydrated aluminate cement granules. RSC Advances. 8 (34): pp. 19326-19334.
    Source Title
    RSC Advances
    DOI
    10.1039/c8ra02474j
    ISSN
    2046-2069
    School
    WASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
    URI
    http://hdl.handle.net/20.500.11937/69290
    Collection
    • Curtin Research Publications
    Abstract

    This journal is © The Royal Society of Chemistry. Phosphorus is the main element for eutrophication of water bodies. Aluminate cement is a cheap building material rich in aluminium and calcium which have significant effects on phosphate adsorption. This study aimed at the investigation of removal behavior of phosphate by thermally dehydrated aluminate cement granules, treated at different temperatures, and the adsorption mechanisms. It was found that 600 °C was the optimal temperature, producing excellent granules with a particle size of 0.6-1.5 mm (T600), giving a great adsorption capacity of phosphate of 49.1 mg P per g and presenting fast and high initial adsorption, reaching a capacity of 23.7 mg P per g within 30 min at 20 °C. The phosphate adsorption process was dominated by chemical adsorption, mainly through inner-sphere complexion and phosphate precipitation on the surface of the adsorbent. Compared with other phosphate adsorbents, T600 may be an economical and efficient adsorbent.

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