Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation
Abstract Carbon-neutral strategies are transforming wastewater treatment from pollution removal to resource recovery. Anaerobic fermentation stands out as a promising method for the recovery of short-chain fatty acids from waste activated sludge. However, short chain fatty acid yield is usually unsa...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-07-01
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| Series: | Communications Engineering |
| Online Access: | https://doi.org/10.1038/s44172-025-00436-z |
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| author | Xiaodi Li Lu Wang Mianfeng Zhang Bo Wang Wei Zeng Yongzhen Peng |
| author_facet | Xiaodi Li Lu Wang Mianfeng Zhang Bo Wang Wei Zeng Yongzhen Peng |
| author_sort | Xiaodi Li |
| collection | DOAJ |
| description | Abstract Carbon-neutral strategies are transforming wastewater treatment from pollution removal to resource recovery. Anaerobic fermentation stands out as a promising method for the recovery of short-chain fatty acids from waste activated sludge. However, short chain fatty acid yield is usually unsatisfactory due to the slow hydrolysis rate of organic substances during sludge fermentation, requiring external interventions. Different physical, chemical and biological approaches are available to enhance fermentation. This study systematically reviews the research progress in combining these physical, chemical and biological processes to facilitate short chain fatty acid production via the fermentation of waste activated sludge. The prospects for combined strategies are comprehensively discussed and the feasibility and challenges of applying combined strategies in practical wastewater treatment plants are assessed. The findings are expected to provide valuable insights for future research on sludge reutilization. |
| format | Article |
| id | doaj-art-3898f95ca8b04bd79f5f7e6422f4ef33 |
| institution | Kabale University |
| issn | 2731-3395 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Engineering |
| spelling | doaj-art-3898f95ca8b04bd79f5f7e6422f4ef332025-08-20T04:02:55ZengNature PortfolioCommunications Engineering2731-33952025-07-014111510.1038/s44172-025-00436-zCombined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentationXiaodi Li0Lu Wang1Mianfeng Zhang2Bo Wang3Wei Zeng4Yongzhen Peng5National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of TechnologyNational Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of TechnologyNational Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of TechnologyNational Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of TechnologyNational Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of TechnologyNational Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Engineering Research Center of Beijing, Beijing University of TechnologyAbstract Carbon-neutral strategies are transforming wastewater treatment from pollution removal to resource recovery. Anaerobic fermentation stands out as a promising method for the recovery of short-chain fatty acids from waste activated sludge. However, short chain fatty acid yield is usually unsatisfactory due to the slow hydrolysis rate of organic substances during sludge fermentation, requiring external interventions. Different physical, chemical and biological approaches are available to enhance fermentation. This study systematically reviews the research progress in combining these physical, chemical and biological processes to facilitate short chain fatty acid production via the fermentation of waste activated sludge. The prospects for combined strategies are comprehensively discussed and the feasibility and challenges of applying combined strategies in practical wastewater treatment plants are assessed. The findings are expected to provide valuable insights for future research on sludge reutilization.https://doi.org/10.1038/s44172-025-00436-z |
| spellingShingle | Xiaodi Li Lu Wang Mianfeng Zhang Bo Wang Wei Zeng Yongzhen Peng Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation Communications Engineering |
| title | Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation |
| title_full | Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation |
| title_fullStr | Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation |
| title_full_unstemmed | Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation |
| title_short | Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation |
| title_sort | combined strategies for promoting short chain fatty acids production from waste activated sludge in anaerobic fermentation |
| url | https://doi.org/10.1038/s44172-025-00436-z |
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