Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis
This study investigated the influence of combined organic fouling and inorganic scaling on the flux and fouling behaviors of thin-film composite (TFC) forward osmosis (FO) membranes. Two organic macromolecules, namely, bovine serum albumin (BSA) and sodium alginate (SA), and gypsum (GS), as an inorg...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/6/115 |
| _version_ | 1797566329931169792 |
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| author | Youngpil Chun Kwanho Jeong Kyung Hwa Cho |
| author_facet | Youngpil Chun Kwanho Jeong Kyung Hwa Cho |
| author_sort | Youngpil Chun |
| collection | DOAJ |
| description | This study investigated the influence of combined organic fouling and inorganic scaling on the flux and fouling behaviors of thin-film composite (TFC) forward osmosis (FO) membranes. Two organic macromolecules, namely, bovine serum albumin (BSA) and sodium alginate (SA), and gypsum (GS), as an inorganic scaling agent, were selected as model foulants. It was found that GS scaling alone caused the most severe flux decline. When a mixture of organic and inorganic foulants was employed, the flux decline was retarded, compared with when the filtration was performed with only the inorganic scaling agent (GS). The early onset of the conditioning layer formation, which was due to the organics, was probably the underlying mechanism for this inhibitory phenomenon, which had suppressed the deposition and growth of the GS crystals. Although the combined fouling resulted in less flux decline, compared with GS scaling alone, the concoction of SA and GS resulted in more fouling and flux decline, compared with the mixture of BSA and GS. This was because of the carboxyl acidity of the alginate, which attracted calcium ions and formed an intermolecular bridge. |
| first_indexed | 2024-03-10T19:25:13Z |
| format | Article |
| id | doaj.art-e0dd9968a0a94a939bcb08b666a6f3df |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T19:25:13Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-e0dd9968a0a94a939bcb08b666a6f3df2023-11-20T02:37:47ZengMDPI AGMembranes2077-03752020-06-0110611510.3390/membranes10060115Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward OsmosisYoungpil Chun0Kwanho Jeong1Kyung Hwa Cho2International Environmental Research Institute, Gwangju Institute of Science and Technology, Gwangju 61005, KoreaSchool of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, KoreaSchool of Urban and Environmental Engineering, Ulsan National Institute of Science and Technology, Ulsan 44919, KoreaThis study investigated the influence of combined organic fouling and inorganic scaling on the flux and fouling behaviors of thin-film composite (TFC) forward osmosis (FO) membranes. Two organic macromolecules, namely, bovine serum albumin (BSA) and sodium alginate (SA), and gypsum (GS), as an inorganic scaling agent, were selected as model foulants. It was found that GS scaling alone caused the most severe flux decline. When a mixture of organic and inorganic foulants was employed, the flux decline was retarded, compared with when the filtration was performed with only the inorganic scaling agent (GS). The early onset of the conditioning layer formation, which was due to the organics, was probably the underlying mechanism for this inhibitory phenomenon, which had suppressed the deposition and growth of the GS crystals. Although the combined fouling resulted in less flux decline, compared with GS scaling alone, the concoction of SA and GS resulted in more fouling and flux decline, compared with the mixture of BSA and GS. This was because of the carboxyl acidity of the alginate, which attracted calcium ions and formed an intermolecular bridge.https://www.mdpi.com/2077-0375/10/6/115forward osmosisorganic foulinggypsum scalingcombined fouling |
| spellingShingle | Youngpil Chun Kwanho Jeong Kyung Hwa Cho Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis Membranes forward osmosis organic fouling gypsum scaling combined fouling |
| title | Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis |
| title_full | Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis |
| title_fullStr | Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis |
| title_full_unstemmed | Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis |
| title_short | Influences of Combined Organic Fouling and Inorganic Scaling on Flux and Fouling Behaviors in Forward Osmosis |
| title_sort | influences of combined organic fouling and inorganic scaling on flux and fouling behaviors in forward osmosis |
| topic | forward osmosis organic fouling gypsum scaling combined fouling |
| url | https://www.mdpi.com/2077-0375/10/6/115 |
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