Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system
In this study, a prototype microgranular adsorptive filtration (μGAF) system was constructed employing a 7-bore ceramic membrane as the primary membrane and either heated aluminum oxide particles (HAOPs) or powdered activated carbon (PAC) as the pre-deposited dynamic membrane (DM). The system was us...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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2022
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| Online Access: | https://hdl.handle.net/10356/156944 |
| _version_ | 1826109816086462464 |
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| author | Chun, Youngpil Hua, Tao Anantharaman, Aditya Chew, Jia Wei Cai, Nathan Benjamin, Mark Wang, Rong |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Chun, Youngpil Hua, Tao Anantharaman, Aditya Chew, Jia Wei Cai, Nathan Benjamin, Mark Wang, Rong |
| author_sort | Chun, Youngpil |
| collection | NTU |
| description | In this study, a prototype microgranular adsorptive filtration (μGAF) system was constructed employing a 7-bore ceramic membrane as the primary membrane and either heated aluminum oxide particles (HAOPs) or powdered activated carbon (PAC) as the pre-deposited dynamic membrane (DM). The system was used to pre-treat membrane bioreactor (MBR) effluent from a full-scale MBR-reverse osmosis (RO) water reclamation plant. The downstream RO performance and membrane fouling potential of the treated effluent were then assessed. The results indicated that: (i) although PAC removed more overall EfOM than HAOPs did, HAOPs were more effective in removing biopolymers such as polysaccharides and proteins, (ii) HAOPs virtually eliminated fouling of the primary ceramic membrane, whereas considerable fouling (much of it irreversible) occurred when the feed was pretreated with PAC, (iii) HAOPs removed more than 90% of the phosphorus and fluoride from the feed, but PAC removed negligible amounts of these contaminants, and (iv) HAOPs-treated effluent resulted in only a 43% decline in RO permeate water flux over 5 d of continuous filtration, as opposed to 62% flux decline for untreated or PAC-treated effluent. This study thus demonstrates the effectiveness of the HAOPs-based μGAF process as a pre-treatment for improving downstream RO recovery. |
| first_indexed | 2024-10-01T02:24:14Z |
| format | Journal Article |
| id | ntu-10356/156944 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:24:14Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1569442022-04-30T20:11:21Z Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system Chun, Youngpil Hua, Tao Anantharaman, Aditya Chew, Jia Wei Cai, Nathan Benjamin, Mark Wang, Rong School of Civil and Environmental Engineering School of Chemical and Biomedical Engineering Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre Engineering::Civil engineering Dynamic Membranes Heated Aluminum Oxide Particles In this study, a prototype microgranular adsorptive filtration (μGAF) system was constructed employing a 7-bore ceramic membrane as the primary membrane and either heated aluminum oxide particles (HAOPs) or powdered activated carbon (PAC) as the pre-deposited dynamic membrane (DM). The system was used to pre-treat membrane bioreactor (MBR) effluent from a full-scale MBR-reverse osmosis (RO) water reclamation plant. The downstream RO performance and membrane fouling potential of the treated effluent were then assessed. The results indicated that: (i) although PAC removed more overall EfOM than HAOPs did, HAOPs were more effective in removing biopolymers such as polysaccharides and proteins, (ii) HAOPs virtually eliminated fouling of the primary ceramic membrane, whereas considerable fouling (much of it irreversible) occurred when the feed was pretreated with PAC, (iii) HAOPs removed more than 90% of the phosphorus and fluoride from the feed, but PAC removed negligible amounts of these contaminants, and (iv) HAOPs-treated effluent resulted in only a 43% decline in RO permeate water flux over 5 d of continuous filtration, as opposed to 62% flux decline for untreated or PAC-treated effluent. This study thus demonstrates the effectiveness of the HAOPs-based μGAF process as a pre-treatment for improving downstream RO recovery. Economic Development Board (EDB) National Research Foundation (NRF) Submitted/Accepted version This research grant was supported by the Singapore National Research Foundation under its Environment and Water Research Program and administered by PUB, Singapore’s National Water Agency (grant number: 1601-CRPW-T20). The Singapore Membrane Technology Center, Nanyang Environment and Water Research Institute, Nanyang Technological University is supported by the Economic Development Board of Singapore. 2022-04-27T08:27:26Z 2022-04-27T08:27:26Z 2021 Journal Article Chun, Y., Hua, T., Anantharaman, A., Chew, J. W., Cai, N., Benjamin, M. & Wang, R. (2021). Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system. Desalination, 506, 115016-. https://dx.doi.org/10.1016/j.desal.2021.115016 0011-9164 https://hdl.handle.net/10356/156944 10.1016/j.desal.2021.115016 2-s2.0-85101402562 506 115016 en 1601-CRPW-T20 Desalination © 2021 Elsevier B.V. All rights reserved. This paper was published in Desalination and is made available with permission of Elsevier B.V. application/pdf |
| spellingShingle | Engineering::Civil engineering Dynamic Membranes Heated Aluminum Oxide Particles Chun, Youngpil Hua, Tao Anantharaman, Aditya Chew, Jia Wei Cai, Nathan Benjamin, Mark Wang, Rong Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| title | Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| title_full | Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| title_fullStr | Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| title_full_unstemmed | Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| title_short | Organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| title_sort | organic matter removal from a membrane bioreactor effluent for reverse osmosis fouling mitigation by microgranular adsorptive filtration system |
| topic | Engineering::Civil engineering Dynamic Membranes Heated Aluminum Oxide Particles |
| url | https://hdl.handle.net/10356/156944 |
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