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فناوری منابع زیستی
جزئیات رویداد
اینستاگرام تی پی بین
همایش ، رویداد ، ژورنال
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  • nitrophenol removal by simultaneous nitrification denitrification (snd) using t. pantotropha in sequencing batch reactors (sbr)

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    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 537
    • تعداد پرسش و پاسخ ها: 0
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     nitrophenol removal was assessed using four identical lab scale sequencing batch reactors r (background control), r1 (4-nitrophenol i.e. 4-np), r2 (2,4-dinitrophenol i.e. 2,4-dnp), and r3 (2,4,6-trinitrophenol i.e. 2,4,6-tnp). in the present study, the snd based sbr system was used to carry out total nitrogen removal at reduced aeration (do = 2 mg/l) using a specifically designed single sludge biomass containingthiosphaera pantotropha. the concentration of each of the nitrophenols was gradually increased from 2.5 to 200 mg/l during acclimation. the nitrophenols were used as the sole source of nitrogen during study. a synthetic feed was designed to direct snd in the bioreactors. it was observed that overall removal for 4-np was 98% and for 2,4-dnp and 2,4,6 tnp, removals varied between 83% and 84%. the cod removal for 4-np was 99% and for 2,4-dnp and 2,4,6-tnp was 97–98% during acclimation. total nitrogen and nitrophenol removals were achieved via snd.

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