Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor
For the first time, a nanosilver-coated hollow fiber microfiltration (MF) was fabricated by a simple chemical reduction method, then tested for membrane biofouling mitigation study under extreme high mixed liquor suspended solid (MLSS) concentration for long term. This study presents a simple and no...
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| Định dạng: | Journal article |
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2023
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| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/handle/123456789/2996 https://www.mdpi.com/1420-3049/24/12/2345 |
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oai:scholar.dlu.edu.vn:123456789-29962023-09-28T03:40:58Z Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor Huy Quang Le Alieu Sowe Shiao-Shing Chen Chinh Cong Duong Saikat Sinha Ray Thanh Ngoc-Dan Cao Nguyen Cong Nguyen For the first time, a nanosilver-coated hollow fiber microfiltration (MF) was fabricated by a simple chemical reduction method, then tested for membrane biofouling mitigation study under extreme high mixed liquor suspended solid (MLSS) concentration for long term. This study presents a simple and novel technique to modify a commercially available MF membrane using silver nanoparticles (AgNPs) followed by an investigation of mitigating membrane biofouling potentials using this modified membrane to compare with an unmodified membrane for 60-day operation period. The modified membranes showed that AgNPs was attached to the MF-membrane successfully with a high density of 119.85 ± 5.42 mg/m2. After long-term testing of 60 days in membrane bioreactor with a MLSS concentration of 11,000 mg/L, specific flux of the AgNPs coated MF (AgNPs-MF) decreased 59.7%, while the specific flux of the unmodified membrane dropped 81.8%, resulted from the increase of transmembrane vacuum pressure for the AgNPs-MF was lower than that of the unmodified one. The resistance-in-series model was used to calculate the resistance coefficients of membrane modules, and the result showed that the cake layer resistance coefficient of the unmodified membrane was 2.7 times higher than that of the AgNPs-MF after the 60-day operation, confirming that AgNPs displayed great antimicrobial properties to mitigate membrane biofouling under such high MLSS. 2023-09-28T03:40:54Z 2023-09-28T03:40:54Z 2019-06-25 Journal article Bài báo đăng trên tạp chí thuộc ISI, bao gồm book chapter 1420-3049 https://scholar.dlu.edu.vn/handle/123456789/2996 10.3390/molecules24122345 https://www.mdpi.com/1420-3049/24/12/2345 en Molecules |
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Thư viện Trường Đại học Đà Lạt |
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Thư viện số |
| language |
English |
| description |
For the first time, a nanosilver-coated hollow fiber microfiltration (MF) was fabricated by a simple chemical reduction method, then tested for membrane biofouling mitigation study under extreme high mixed liquor suspended solid (MLSS) concentration for long term. This study presents a simple and novel technique to modify a commercially available MF membrane using silver nanoparticles (AgNPs) followed by an investigation of mitigating membrane biofouling potentials using this modified membrane to compare with an unmodified membrane for 60-day operation period. The modified membranes showed that AgNPs was attached to the MF-membrane successfully with a high density of 119.85 ± 5.42 mg/m2. After long-term testing of 60 days in membrane bioreactor with a MLSS concentration of 11,000 mg/L, specific flux of the AgNPs coated MF (AgNPs-MF) decreased 59.7%, while the specific flux of the unmodified membrane dropped 81.8%, resulted from the increase of transmembrane vacuum pressure for the AgNPs-MF was lower than that of the unmodified one. The resistance-in-series model was used to calculate the resistance coefficients of membrane modules, and the result showed that the cake layer resistance coefficient of the unmodified membrane was 2.7 times higher than that of the AgNPs-MF after the 60-day operation, confirming that AgNPs displayed great antimicrobial properties to mitigate membrane biofouling under such high MLSS. |
| format |
Journal article |
| author |
Huy Quang Le Alieu Sowe Shiao-Shing Chen Chinh Cong Duong Saikat Sinha Ray Thanh Ngoc-Dan Cao Nguyen Cong Nguyen |
| spellingShingle |
Huy Quang Le Alieu Sowe Shiao-Shing Chen Chinh Cong Duong Saikat Sinha Ray Thanh Ngoc-Dan Cao Nguyen Cong Nguyen Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor |
| author_facet |
Huy Quang Le Alieu Sowe Shiao-Shing Chen Chinh Cong Duong Saikat Sinha Ray Thanh Ngoc-Dan Cao Nguyen Cong Nguyen |
| author_sort |
Huy Quang Le |
| title |
Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor |
| title_short |
Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor |
| title_full |
Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor |
| title_fullStr |
Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor |
| title_full_unstemmed |
Exploring Nanosilver-Coated Hollow Fiber Microfiltration to Mitigate Biofouling for High Loading Membrane Bioreactor |
| title_sort |
exploring nanosilver-coated hollow fiber microfiltration to mitigate biofouling for high loading membrane bioreactor |
| publishDate |
2023 |
| url |
https://scholar.dlu.edu.vn/handle/123456789/2996 https://www.mdpi.com/1420-3049/24/12/2345 |
| _version_ |
1778792471663214592 |