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  • sequential nitrification and denitrification in a novel palm shell granular activated carbon twin-chamber upflow bio-electrochemical reactor for treating ammonium-rich wastewater

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 522
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     in this study, a twin-chamber upflow bio-electrochemical reactor packed with palm shell granular activated carbon as biocarrier and third electrode was used for sequential nitrification and denitrification of nitrogen-rich wastewater under different operating conditions. the experiments were performed at a constant ph value for the denitrification compartment. the effect of variables, namely, electric current (i) and hydraulic retention time (hrt), on the ph was considered in the nitrification chamber. the response surface methodology was used based on three levels to develop empirical models for the study on the effects of hrt and current values as independent operating variables on nh4+–n removal. the results showed that ammonium was reduced within the function of an extensive operational range of electric intensity (20–50 ma) and hrt (6–24 h). the optimum condition for ammonium oxidation (90%) was determined with an i of 32 ma and hrt of 19.2 h.

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