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فناوری منابع زیستی
جزئیات رویداد
اینستاگرام تی پی بین
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  • the contrast study of anammox-denitrifying system in two non-woven fixed-bed bioreactors (nfbr) treating different low c/n ratio sewage

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 975
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    • شماره تماس دبیرخانه رویداد: -
     two non-woven fixed-bed bioreactors (nfbr) based on different substrates (nitrite and nitrate) were constructed to study the environmental adaptability for temperature and organic matter of anammox-denitrifying system and nitrogen removal performance. the two reactors were successfully operated for 200 days. the average removal rates of nitrogen and cod of r2 were 81% and 93%, respectively. besides, the nitrogen removal rate of r1 was 95% under not more than 105 mg/l of cod. the experimental results indicated that the r2 based on nitrate had a good nitrogen removal performance at room temperature (25 °c). additionally, the analysis results of fluorescence in situhybridization (fish) showed that the percentage compositions of anammox in r1 and r2 were 84% and 65% on day 189. finally, the possible nitrogen removal model of anammox-denitrifying system was constructed. according to nitrogen balance and c/n ratios of denitrification, the nitrogen removal approaches of r1 and r2 were obtained.

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