کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6591633 | 456879 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of scale-up on a hybrid moving bed biofilm reactor - membrane bioreactor for treating urban wastewater
ترجمه فارسی عنوان
اثرات مقیاس پذیری بر روی یک رآکتور بیوفیلم متحرک - بیوراکتور غشایی برای درمان فاضلاب شهری
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کلمات کلیدی
افزایش مقیاس، مدل سازی، شبیه سازی دینامیک، تخت خوابیدن، بیوراکتور غشایی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
A hybrid moving bed biofilm reactor-membrane bioreactor (hybrid MBBR-MBR) system has been tested in this study at two scales to analyse the scale-up effect. Two municipal wastewater treatment plants were used, one at laboratory scale (hybrid MBBR-MBRL) with a reactor working volume of 24 l and one at pilot scale (hybrid MBBR-MBRP) with a reactor working volume of 358 l. Hybrid MBBR-MBRL and hybrid MBBR-MBRP showed that the hybrid MBBR-MBR systems used in this research were reliable for organic matter removal with COD removal percentages of 90.97±2.55% and 95.56±2.01% for hybrid MBBR-MBRL and hybrid MBBR-MBRP, respectively. In hybrid MBBR-MBRL, the sludge retention time was higher but the biofilm density was lower due to the wall effect, so the two effects cancelled one another out and the COD removal efficiencies were found to be similar. The study identified the most influential variables and their effects on the process. Hybrid MBBR-MBRL and hybrid MBBR-MBRP were influenced by the attached and suspended biomass and temperature, while the influent loading rate only affected hybrid MBBR-MBRP. On the whole, hybrid MBBR-MBRP showed a better performance from the point of view of the kinetics of the heterotrophic biomass, with values of YH=0.6130 mg VSS mg CODâ1, μm,H=0.0146 hâ1, KS=9.8852 mg O2 Lâ1, and bH=0.0031 hâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 104, 18 December 2013, Pages 808-816
Journal: Chemical Engineering Science - Volume 104, 18 December 2013, Pages 808-816
نویسندگان
J.C. Leyva-DÃaz, J. MartÃn-Pascual, J. González-López, E. Hontoria, J.M. Poyatos,