کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10236375 | 45144 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Biological phosphorus removal in a sequencing batch reactor by using pure cultures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of this study was to investigate the effect of pure cultures on the enhancement of biological phosphorus removal capability of a Sequencing Batch Reactor (SBR) inoculated initially with a mixed culture. For this purpose, three anaerobic/aerobic SBRs with mixed cultures were started in parallel and operated for a while. At the end of this period, pure cultures of Acinetobacter lwoffii, A. lwoffii-Pseudomonas aeruginosa mixture and P. aeruginosa were added into the first, second and third reactors, respectively. All reactors were operated at a constant solid retention time (SRT) of 10 days and the food/microorganism (F/M) ratio was changed between 0.43-0.50 mg COD mgâ1 VSS dayâ1. The total cycle time was 14 h throughout the experimental study. The addition of A. lwoffii to the mixed culture in the first reactor significantly enhanced the biological phosphorus removal (EBPR) rate. Complete removal (E = 100%) of 20 mg lâ1 PO4-P was achieved within 35 days of operation. Corresponding removal efficiencies obtained using A. lwoffii-P. aeruginosa mixture (second reactor) and P. aeruginosa alone (third reactor) were 25% and 20%, respectively. The COD removal efficiency was 90% in all reactors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 40, Issue 5, April 2005, Pages 1599-1603
Journal: Process Biochemistry - Volume 40, Issue 5, April 2005, Pages 1599-1603
نویسندگان
Meltem Sarioglu,