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  • the anammox reactor under transient-state conditions: process stability with fluctuations of the nitrogen concentration, inflow rate, ph and sodium chloride addition

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 645
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the process stability of an anaerobic ammonium oxidation (anammox) was investigated in an upflow anaerobic sludge blanket reactor subjected to overloads of 2.0- to 3.0-fold increases in substrate concentrations, inflow rates lasting 12 or 24 h, extreme ph levels of 4 and 10 for 12 h and a 12-h 30 g l−1 nacl addition. during the overloads, the nitrogen removal rate improved, and the shock period was an important factor affecting the reactor performance. in the high ph condition, the reactor performance significantly degenerated; while in the low ph condition, it did not happen. the nacl addition caused the most serious deterioration in the reactor, which took 108 h to recover and was accompanied by a stoichiometric ratio divergence. there are well correlations between the total nitrogen and the electrical conductivity which is considered to be a convenient signal for controlling and monitoring the anammox process under transient-state conditions.

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