کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
686694 889110 2006 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Start-up alternatives and performance of an UASB pilot plant treating diluted municipal wastewater at low temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Start-up alternatives and performance of an UASB pilot plant treating diluted municipal wastewater at low temperature
چکیده انگلیسی

Different start-up procedures of an upflow anaerobic sludge bed (UASB) digester were carried out. Start-up without inoculum (experiment A) was delayed for about 120 day. The digester reached 75–85% total suspended solids (TSS) removal, 54–58% total chemical oxygen demand (TCOD) removal and 63–73% biological oxygen demand (BOD5) removal at influent concentrations of 240–340 mg TCODi l−1, temperatures of 13.5–15 °C and hydraulic retention times (HRT) of 10–11 h.Digested sludge was used as inoculum in experiment B. After the start-up period of 75 days, digester efficiencies were 58%, 41% and 54% for TSS, TCOD and BOD5 removal, respectively, working at 169 mg TCODi l−1, temperature of 14 °C and HRT of 11 h.The sludge bed developed and stabilised quickly when using a hydraulically adapted inoculum (experiment C), but TCOD and BOD5 removals remained low and volatile fatty acids (VFA) accumulated in the effluent.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 97, Issue 14, September 2006, Pages 1640–1649
نویسندگان
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