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  • fast start-up and stable performance coupled to sulfate reduction in the nitrobenzene bio-reduction system and its microbial community

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 557
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     three laboratory-scale sequence batch reactors were set up in this study. it was found that a successfully established sulfate-reducing system — operating at cod/ so2-4 ratio of 5.0 — could speed up the start-up process, leading to a high performance. it took about 100 and 60 days, respectively, for a non-sulfate-reducing system and a sulfate-reducing control system to achieve stable and high removal of nb. however, it maintained a complete nb removal in sulfate-reducing system throughout the study. rapid and stable nb reduction was coupled to the on-going sulfate reducing process. denaturing gradient gel electrophoresis profile demonstrated that the predominant bacterial groups in the non-sulfate-reducing system and the sulfate-reducing control system were affiliated to deltaproteobacterium and acinetobacter, while in the sulfate-reducing system were sulfate-reducing and sulfur-oxidizing bacteria.

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