Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors
This study compares the membrane fouling mechanisms of aerobic (AeMBR) and anaerobic membrane bioreactors (AnMBR) of the same reactor configuration at similar operating conditions. Although both the AeMBR and AnMBR achieved more than 90% COD removal efficiency, the fouling mechanisms were different....
محفوظ في:
| المؤلف الرئيسي: | |
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| مؤلفون آخرون: | , |
| التنسيق: | article |
| منشور في: |
2016
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| الوصول للمادة أونلاين: | http://hdl.handle.net/10725/10150 https://doi.org/10.1016/j.seppur.2015.11.024 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://www.sciencedirect.com/science/article/pii/S1383586615303476 |
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| _version_ | 1864513486132871168 |
|---|---|
| author | Xiong, Yanghui |
| author2 | Harb, Moustapha Hong, Pei-Ying |
| author2_role | author author |
| author_facet | Xiong, Yanghui Harb, Moustapha Hong, Pei-Ying |
| author_role | author |
| dc.creator.none.fl_str_mv | Xiong, Yanghui Harb, Moustapha Hong, Pei-Ying |
| dc.date.none.fl_str_mv | 2016 2019-03-08T14:13:12Z 2019-03-08T14:13:12Z 2019-03-08 |
| dc.identifier.none.fl_str_mv | 1873-3794 http://hdl.handle.net/10725/10150 https://doi.org/10.1016/j.seppur.2015.11.024 Xiong, Y., Harb, M., & Hong, P. Y. (2016). Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors. Separation and Purification Technology, 157, 192-202. http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://www.sciencedirect.com/science/article/pii/S1383586615303476 |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Separation and Purification Technology |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | This study compares the membrane fouling mechanisms of aerobic (AeMBR) and anaerobic membrane bioreactors (AnMBR) of the same reactor configuration at similar operating conditions. Although both the AeMBR and AnMBR achieved more than 90% COD removal efficiency, the fouling mechanisms were different. Molecular weight (MW) fingerprint profiles showed that a majority of fragments in anaerobic soluble microbial products (SMP) were retained by the membrane and some fragments were present in both SMP and in soluble extracellular polymeric substances (EPS), suggesting that the physical retention of SMP components contributed to the AnMBR membrane fouling. One of the dominant fragments was comprised of glycolipoprotein (size 630–640 kDa) and correlated in abundance in AnMBR–EPS with the extent of anaerobic membrane fouling. In contrast, all detected AeMBR–SMP fragments permeated through the membrane. Aerobic SMP and soluble EPS also showed very different fingerprinting profiles. A large amount of adenosine triphosphate was present in the AeMBR–EPS, suggesting that microbial activity arising from certain bacterial populations, such as unclassified Comamonadaceae and unclassified Chitinophagaceae, may play a role in aerobic membrane fouling. This study underlines the differences in fouling mechanisms between AeMBR and AnMBR systems and can be applied to facilitate the development of appropriate fouling control strategies. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_bc84d6b35d9943a01617f941ab9640d2 |
| identifier_str_mv | 1873-3794 Xiong, Y., Harb, M., & Hong, P. Y. (2016). Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors. Separation and Purification Technology, 157, 192-202. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/10150 |
| publishDate | 2016 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactorsXiong, YanghuiHarb, MoustaphaHong, Pei-YingThis study compares the membrane fouling mechanisms of aerobic (AeMBR) and anaerobic membrane bioreactors (AnMBR) of the same reactor configuration at similar operating conditions. Although both the AeMBR and AnMBR achieved more than 90% COD removal efficiency, the fouling mechanisms were different. Molecular weight (MW) fingerprint profiles showed that a majority of fragments in anaerobic soluble microbial products (SMP) were retained by the membrane and some fragments were present in both SMP and in soluble extracellular polymeric substances (EPS), suggesting that the physical retention of SMP components contributed to the AnMBR membrane fouling. One of the dominant fragments was comprised of glycolipoprotein (size 630–640 kDa) and correlated in abundance in AnMBR–EPS with the extent of anaerobic membrane fouling. In contrast, all detected AeMBR–SMP fragments permeated through the membrane. Aerobic SMP and soluble EPS also showed very different fingerprinting profiles. A large amount of adenosine triphosphate was present in the AeMBR–EPS, suggesting that microbial activity arising from certain bacterial populations, such as unclassified Comamonadaceae and unclassified Chitinophagaceae, may play a role in aerobic membrane fouling. This study underlines the differences in fouling mechanisms between AeMBR and AnMBR systems and can be applied to facilitate the development of appropriate fouling control strategies.PublishedN/A2019-03-08T14:13:12Z2019-03-08T14:13:12Z20162019-03-08Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1873-3794http://hdl.handle.net/10725/10150https://doi.org/10.1016/j.seppur.2015.11.024Xiong, Y., Harb, M., & Hong, P. Y. (2016). Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors. Separation and Purification Technology, 157, 192-202.http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.phphttps://www.sciencedirect.com/science/article/pii/S1383586615303476enSeparation and Purification Technologyinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/101502021-03-19T10:45:25Z |
| spellingShingle | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors Xiong, Yanghui |
| status_str | publishedVersion |
| title | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| title_full | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| title_fullStr | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| title_full_unstemmed | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| title_short | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| title_sort | Characterization of biofoulants illustrates different membrane fouling mechanisms for aerobic and anaerobic membrane bioreactors |
| url | http://hdl.handle.net/10725/10150 https://doi.org/10.1016/j.seppur.2015.11.024 http://libraries.lau.edu.lb/research/laur/terms-of-use/articles.php https://www.sciencedirect.com/science/article/pii/S1383586615303476 |