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  • Title: Enhanced performance of denitrifying sulfide removal process under micro-aerobic condition.
    Author: Chen C, Ren N, Wang A, Liu L, Lee DJ.
    Journal: J Hazard Mater; 2010 Jul 15; 179(1-3):1147-51. PubMed ID: 20233637.
    Abstract:
    The denitrifying sulfide removal (DSR) process with bio-granules comprising both heterotrophic and autotrophic denitrifiers can simultaneously convert nitrate, sulfide and acetate into di-nitrogen gas, elementary sulfur and carbon dioxide, respectively, at high loading rates. This study determines the reaction rate of sulfide oxidized into sulfur, as well as the reduction of nitrate to nitrite, would be enhanced under a micro-aerobic condition. The presence of limited oxygen mitigated the inhibition effects of sulfide on denitrifier activities, and enhanced the performance of DSR granules. The advantages and disadvantages of applying the micro-aerobic condition to the DSR process are discussed.
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