Synchronous removal of emulsions and soluble organic contaminants via a microalgae-based membrane system : performance and mechanisms
Copyright © 2021 Elsevier Ltd. All rights reserved..
In this study, we applied a flexible strategy to manufacture a microalgal biochar-based membrane (MBCM). Due to the hierarchical surface topography on a micro-nano scale, the MBCM was found to have both underwater superoleophobic and underoil superhydrophobic properties. Combining an underoil superhydrophobic oil-containing region (OCR) with an underwater superoleophobic water-containing region (WCR) achieved the successive filtration of multiphase emulsions. The MBCM also served as a high-performance carbocatalyst for advanced oxidation processes (AOPs), due to the N functionalities (5.08%) of the graphene-like structure. This was caused by the high-temperature pyrolysis of rich proteins and alkaline salts in the algal residue. As a result, the MBCM/AOPs system achieved greater than 99.5% emulsions separation efficiency in different emulsion mixtures, while also achieving an outstanding degradation rate (99.8%) of soluble organic contaminants (SOCs). This in-depth exploration resulted in a low-cost and green strategy for developing multifunctional membranes to treat complex wastewater. The paper explains the mechanisms used by MBCM to synchronously remove emulsions and SOCs from wastewater.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:206 |
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| Enthalten in: |
Water research - 206(2021) vom: 01. Nov., Seite 117741 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Cao, Guoliang [VerfasserIn] |
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| Links: |
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| Themen: |
Advanced oxidation process |
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| Anmerkungen: |
Date Completed 11.11.2021 Date Revised 07.12.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.watres.2021.117741 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 500 | |a Date Revised 07.12.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a Copyright © 2021 Elsevier Ltd. All rights reserved. | ||
| 520 | |a In this study, we applied a flexible strategy to manufacture a microalgal biochar-based membrane (MBCM). Due to the hierarchical surface topography on a micro-nano scale, the MBCM was found to have both underwater superoleophobic and underoil superhydrophobic properties. Combining an underoil superhydrophobic oil-containing region (OCR) with an underwater superoleophobic water-containing region (WCR) achieved the successive filtration of multiphase emulsions. The MBCM also served as a high-performance carbocatalyst for advanced oxidation processes (AOPs), due to the N functionalities (5.08%) of the graphene-like structure. This was caused by the high-temperature pyrolysis of rich proteins and alkaline salts in the algal residue. As a result, the MBCM/AOPs system achieved greater than 99.5% emulsions separation efficiency in different emulsion mixtures, while also achieving an outstanding degradation rate (99.8%) of soluble organic contaminants (SOCs). This in-depth exploration resulted in a low-cost and green strategy for developing multifunctional membranes to treat complex wastewater. The paper explains the mechanisms used by MBCM to synchronously remove emulsions and SOCs from wastewater | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Advanced oxidation process | |
| 650 | 4 | |a Biochar-based membrane | |
| 650 | 4 | |a Carbocatalysis | |
| 650 | 4 | |a Microalgal residue | |
| 650 | 4 | |a Synchronous pollutant removal | |
| 650 | 7 | |a Emulsions |2 NLM | |
| 650 | 7 | |a Waste Water |2 NLM | |
| 700 | 1 | |a Wang, Rupeng |e verfasserin |4 aut | |
| 700 | 1 | |a Ju, Yun |e verfasserin |4 aut | |
| 700 | 1 | |a Jing, Binghua |e verfasserin |4 aut | |
| 700 | 1 | |a Duan, Xiaoguang |e verfasserin |4 aut | |
| 700 | 1 | |a Ao, Zhimin |e verfasserin |4 aut | |
| 700 | 1 | |a Jiang, Jie |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Fanghua |e verfasserin |4 aut | |
| 700 | 1 | |a Ho, Shih-Hsin |e verfasserin |4 aut | |
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