Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling
This study investigated the biosorption efficiency of Mn (II) by algae (Thalassiosira pseudonana) and membrane performance in a hybrid algae-membrane system. The presence of Mn (II) at 2–10 mM could influence (i.e., at lower algal inoculation ratio of OD = 0.1) or showed negligible effect (i.e., at...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/159881 |
| _version_ | 1824454633813180416 |
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| author | Sim, Lee Nuang Ho, Jia Shin Khaswan, Nurshazwani Binte Wu, Bing Chong, Tzyy Haur |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Sim, Lee Nuang Ho, Jia Shin Khaswan, Nurshazwani Binte Wu, Bing Chong, Tzyy Haur |
| author_sort | Sim, Lee Nuang |
| collection | NTU |
| description | This study investigated the biosorption efficiency of Mn (II) by algae (Thalassiosira pseudonana) and membrane performance in a hybrid algae-membrane system. The presence of Mn (II) at 2–10 mM could influence (i.e., at lower algal inoculation ratio of OD = 0.1) or showed negligible effect (i.e., at higher inoculation ratio of OD = 0.17), on algal growth, cell morphology, pigment content, and extracellular organic matter production. The Mn (II) removal was mainly attributed to the algal uptake mechanisms; and higher removal efficiency (>66%) was achieved at higher algal inoculation ratio. Although increasing the Mn (II) concentration could reduce the algal uptake ratio of Mn (II), the membrane performance was improved. The optical coherence tomography (OCT) analysis revealed that the specific volume of cake layer increased gradually over time, however, the irreversible fouling was predominant and associated the presence of building blocks in soluble organics. |
| first_indexed | 2025-02-19T03:25:25Z |
| format | Journal Article |
| id | ntu-10356/159881 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:25:25Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1598812022-07-05T03:25:28Z Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling Sim, Lee Nuang Ho, Jia Shin Khaswan, Nurshazwani Binte Wu, Bing Chong, Tzyy Haur School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre Engineering::Environmental engineering Algal Membrane Filtration Cake Layer Fouling This study investigated the biosorption efficiency of Mn (II) by algae (Thalassiosira pseudonana) and membrane performance in a hybrid algae-membrane system. The presence of Mn (II) at 2–10 mM could influence (i.e., at lower algal inoculation ratio of OD = 0.1) or showed negligible effect (i.e., at higher inoculation ratio of OD = 0.17), on algal growth, cell morphology, pigment content, and extracellular organic matter production. The Mn (II) removal was mainly attributed to the algal uptake mechanisms; and higher removal efficiency (>66%) was achieved at higher algal inoculation ratio. Although increasing the Mn (II) concentration could reduce the algal uptake ratio of Mn (II), the membrane performance was improved. The optical coherence tomography (OCT) analysis revealed that the specific volume of cake layer increased gradually over time, however, the irreversible fouling was predominant and associated the presence of building blocks in soluble organics. Economic Development Board (EDB) The Economic Development Board (EDB) of Singapore is acknowledged for funding the Singapore Membrane Technology Centre (SMTC), Nanyang Environment & Water Research Institute, Nanyang Technological University. 2022-07-05T03:25:28Z 2022-07-05T03:25:28Z 2021 Journal Article Sim, L. N., Ho, J. S., Khaswan, N. B., Wu, B. & Chong, T. H. (2021). Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling. Algal Research, 55, 102279-. https://dx.doi.org/10.1016/j.algal.2021.102279 2211-9264 https://hdl.handle.net/10356/159881 10.1016/j.algal.2021.102279 2-s2.0-85103122492 55 102279 en Algal Research © 2021 Elsevier B.V. All rights reserved. |
| spellingShingle | Engineering::Environmental engineering Algal Membrane Filtration Cake Layer Fouling Sim, Lee Nuang Ho, Jia Shin Khaswan, Nurshazwani Binte Wu, Bing Chong, Tzyy Haur Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling |
| title | Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling |
| title_full | Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling |
| title_fullStr | Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling |
| title_full_unstemmed | Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling |
| title_short | Membrane filtration of manganese (II) remediated-microalgae: manganese (II) removal, extracellular organic matter, and membrane fouling |
| title_sort | membrane filtration of manganese ii remediated microalgae manganese ii removal extracellular organic matter and membrane fouling |
| topic | Engineering::Environmental engineering Algal Membrane Filtration Cake Layer Fouling |
| url | https://hdl.handle.net/10356/159881 |
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