کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5746461 1618784 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Entrapped cells-based-anaerobic membrane bioreactor treating domestic wastewater: Performances, fouling, and bacterial community structure
ترجمه فارسی عنوان
بیوراکتور غشایی بی هوازی مبتنی بر سلول های بکار رفته در درمان فاضلاب خانگی: عملکرد، فساد و ساختار جامعه باکتری
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی


- Entrapped cells- and suspended cells-based-AnMBRs provided similar treatment levels.
- Entrapped cells-based-AnMBR had less fouling than suspended cells-based-AnMBR.
- Cell entrapment lowered proteinaceous bEPS and SMP leading to fouling mitigation.
- Cake layer in entrapped cells-based-AnMBR had less Bacteroidetes, a protein maker.

A laboratory scale study on treatment performances and fouling of entrapped cells-based-anaerobic membrane bioreactor (E-AnMBR) in comparison with suspended cells-based-bioreactor (S-AnMBR) treating domestic wastewater was conducted. The difference between E-AnMBR and S-AnMBR was the uses of cells entrapped in phosphorylated polyvinyl alcohol versus planktonic cells. Bulk organic removal efficiencies by the two AnMBRs were comparable. Lower concentrations of suspended biomass, bound extracellular polymeric substances and soluble microbial products in E-AnMBR resulted in less fouling compared to S-AnMBR. S-AnMBR provided 7 days of operation time versus 11 days for E-AnMBR before chemical cleaning was required. The less frequent chemical cleaning potentially leads to a longer membrane life-span for E-AnMBR compared to S-AnMBR. Phyla Proteobacteria, Chloroflexi, Bacteroidetes and Acidobacteria were dominant in cake sludge from both AnMBRs but their abundances were different between the two AnMBRs, suggesting influence of cell entrapment on the bacteria community.

213

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 187, November 2017, Pages 147-155
نویسندگان
, , ,