Application of a specific membrane fouling control enhancer in membrane bioreactor for real municipal wastewater treatment : Sludge characteristics and microbial community
Copyright © 2020 Elsevier Ltd. All rights reserved..
The feasibility of a novel bioflocculant (GemFloc™) for membrane fouling mitigation in membrane bioreactor (MBR) was investigated during real municipal wastewater treatment. When compared to the conventional MBR (CMBR), suspended sludge in the MBR with GemFloc™ (G-MBR) showed less soluble microbial products (SMP), higher ratios of proteins to polysaccharides in SMP (SMPP/SMPC) and loosely bound extracellular polymeric substances (LB-EPS). Adding GemFloc™ also enlarged floc size (> 200 µm), and increased tightly bound EPS levels, zeta potential and relative hydrophobicity of sludge flocs, further reduced cake layer and pore blocking resistances. Moreover, more diverse microbial community and enrichment of fouling reduction microbes such as Arenimonas and Flavihumibacter were observed in the G-MBR, together with less abundant microbes (e.g. Sphaerotilus and Povalibacter) which could aggravate membrane fouling. Therefore, GemFloc™ has high capability in improving sludge characteristics, mitigating membrane fouling and increasing diversity of special functional bacterial community in MBR.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2020 |
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| Erschienen: |
2020 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:312 |
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| Enthalten in: |
Bioresource technology - 312(2020) vom: 30. Sept., Seite 123612 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Deng, Lijuan [VerfasserIn] |
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| Links: |
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| Themen: |
Bioflocculant |
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| Anmerkungen: |
Date Completed 30.06.2020 Date Revised 07.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.biortech.2020.123612 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM311058868 |
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| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2020 Elsevier Ltd. All rights reserved. | ||
| 520 | |a The feasibility of a novel bioflocculant (GemFloc™) for membrane fouling mitigation in membrane bioreactor (MBR) was investigated during real municipal wastewater treatment. When compared to the conventional MBR (CMBR), suspended sludge in the MBR with GemFloc™ (G-MBR) showed less soluble microbial products (SMP), higher ratios of proteins to polysaccharides in SMP (SMPP/SMPC) and loosely bound extracellular polymeric substances (LB-EPS). Adding GemFloc™ also enlarged floc size (> 200 µm), and increased tightly bound EPS levels, zeta potential and relative hydrophobicity of sludge flocs, further reduced cake layer and pore blocking resistances. Moreover, more diverse microbial community and enrichment of fouling reduction microbes such as Arenimonas and Flavihumibacter were observed in the G-MBR, together with less abundant microbes (e.g. Sphaerotilus and Povalibacter) which could aggravate membrane fouling. Therefore, GemFloc™ has high capability in improving sludge characteristics, mitigating membrane fouling and increasing diversity of special functional bacterial community in MBR | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Bioflocculant | |
| 650 | 4 | |a Membrane fouling control | |
| 650 | 4 | |a Microbial community | |
| 650 | 4 | |a Real wastewater treatment | |
| 650 | 4 | |a Submerged membrane bioreactor (MBR) | |
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| 650 | 7 | |a Sewage |2 NLM | |
| 650 | 7 | |a Waste Water |2 NLM | |
| 700 | 1 | |a Guo, Wenshan |e verfasserin |4 aut | |
| 700 | 1 | |a Ngo, Huu Hao |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Xiaochang C |e verfasserin |4 aut | |
| 700 | 1 | |a Hu, Yisong |e verfasserin |4 aut | |
| 700 | 1 | |a Chen, Rong |e verfasserin |4 aut | |
| 700 | 1 | |a Cheng, Dongle |e verfasserin |4 aut | |
| 700 | 1 | |a Guo, Shengquan |e verfasserin |4 aut | |
| 700 | 1 | |a Cao, Yunyang |e verfasserin |4 aut | |
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