کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
681690 888959 2011 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of membrane fouling reducers (MFRs) on filterability of disperse mixed liquor of Jet Loop Bioreactors
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Influence of membrane fouling reducers (MFRs) on filterability of disperse mixed liquor of Jet Loop Bioreactors
چکیده انگلیسی

The effects of membrane fouling reducers (MFRs) (the cationic polyelectrolyte (CPE) and FeCI3) on membrane fouling were studied in a lab-scale jet loop submerged membrane bioreactor (JL-SMBR) system. The optimum dosages of MFRs (CPE dosage = 20 mg g−1MLSS, FeCI3 dosage = 14 mg g−1MLSS) were continuously fed to JL-SMBR system. The soluble and bound EPS concentrations as well as MLSS concentration in the mixed liquor of JL-SMBR were not changed substantially by the addition of MFRs. However, significant differences were observed in particle size and relative hydrophobicity. Filtration tests were performed by using different membrane types (polycarbonate (PC) and nitrocellulose mixed ester (ME)) and various pore sizes (0.45–0.22–0.1 μm). The steady state fluxes (Jss) of membranes increased at all membranes after MFRs addition to JL-SMBR. The filtration results showed that MFRs addition was an effective approach in terms of improvement in filtration performance for both membrane types.


► The effects of membrane fouling reducers (MFRs) in a jet loop submerged membrane bioreactor (JL-SMBR) were investigated.
► Mixed ester and polycarbonate (ME, PC) membranes were used in the filtration experiments.
► After MFRs addition, the steady state flux values of membranes increased at all membranes.
► The addition of MFRs to the jet loop bioreactor was an effective approach in terms of improvement in filtration performance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 102, Issue 13, July 2011, Pages 6843–6849
نویسندگان
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