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  • Denitrifying sulfide removal process on high-salinity wastewaters in the presence of Halomonas sp

    Author(s)
    Liu, Chunshuang
    Zhao, Dongfeng
    Ma, Wenjuan
    Guo, Yadong
    Wang, Aijie
    Wang, Qilin
    Lee, Duu-Jong
    Griffith University Author(s)
    Wang, Qilin
    Year published
    2016
    Metadata
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    Abstract
    Biological conversion of sulfide, acetate, and nitrate to, respectively, elemental sulfur (S0), carbon dioxide, and nitrogen-containing gas (such as N2) at NaCl concentration of 35–70 g/L was achieved in an expanded granular sludge bed (EGSB) reactor. A C/N ratio of 1:1 was noted to achieve high sulfide removal and S0 conversion rate at high salinity. The extracellular polymeric substance (EPS) quantities were increased with NaCl concentration, being 11.4-mg/g volatile-suspended solids at 70 mg/L NaCl. The denitrifying sulfide removal (DSR) consortium incorporated Thauera sp. and Halomonas sp. as the heterotrophs and Azoarcus ...
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    Biological conversion of sulfide, acetate, and nitrate to, respectively, elemental sulfur (S0), carbon dioxide, and nitrogen-containing gas (such as N2) at NaCl concentration of 35–70 g/L was achieved in an expanded granular sludge bed (EGSB) reactor. A C/N ratio of 1:1 was noted to achieve high sulfide removal and S0 conversion rate at high salinity. The extracellular polymeric substance (EPS) quantities were increased with NaCl concentration, being 11.4-mg/g volatile-suspended solids at 70 mg/L NaCl. The denitrifying sulfide removal (DSR) consortium incorporated Thauera sp. and Halomonas sp. as the heterotrophs and Azoarcus sp. being the autotrophs at high salinity condition. Halomonas sp. correlates with the enhanced DSR performance at high salinity.
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    Journal Title
    Applied Microbiology and Biotechnology
    Volume
    100
    Issue
    3
    DOI
    https://doi.org/10.1007/s00253-015-7039-6
    Subject
    Environmental biotechnology not elsewhere classified
    Publication URI
    http://hdl.handle.net/10072/339782
    Collection
    • Journal articles

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