{"title":"Fe3O4@PANI复合材料可促进废物活性污泥向中链脂肪酸的生物转化","authors":"Qiaoling Lu, Junyan Lu, Dezhi Sun, Bin Qiu","doi":"10.1007/s42114-024-00919-1","DOIUrl":null,"url":null,"abstract":"<div><p>Core–shell structured Fe<sub>3</sub>O<sub>4</sub>@PANI composite was prepared using a chemical oxidation polymerization method and used as the bio-carrier to enhance the biotransformation of waste activated sludge to produce medium-chain fatty acid by anaerobic fermentation. The synthesized composite had stable chemical properties and good biological affinity. The addition of Fe<sub>3</sub>O<sub>4</sub>@PANI can effectively promote the acidogenesis and chain elongation in the fermentation system. When 1 g/L of Fe<sub>3</sub>O<sub>4</sub>@PANI was added, the acid production from the fermentation system increased by up to 1.9 times, and the maximum acid production rate increased by 3.4 times. Meanwhile, the production of caproate increased by 2.79 times. It was demonstrated that the added Fe<sub>3</sub>O<sub>4</sub>@PANI facilitated the release of organic compounds from bacterial cells and improved the electrical activity of the sludge system, thereby accelerating the chain elongation to generate caproate. Moreover, the addition of Fe<sub>3</sub>O<sub>4</sub>@PANI can effectively enrich the functional microbes related to chain elongation, including <i>Clostridium </i><i>sensu stricto</i><i> 12</i>, <i>Dechloromonas</i>, <i>Romboutsia</i>, and <i>IMCC26207</i>.</p></div>","PeriodicalId":7220,"journal":{"name":"Advanced Composites and Hybrid Materials","volume":"7 4","pages":""},"PeriodicalIF":23.2000,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fe3O4@PANI composite improves biotransformation of waste activated sludge into medium-chain fatty acid\",\"authors\":\"Qiaoling Lu, Junyan Lu, Dezhi Sun, Bin Qiu\",\"doi\":\"10.1007/s42114-024-00919-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Core–shell structured Fe<sub>3</sub>O<sub>4</sub>@PANI composite was prepared using a chemical oxidation polymerization method and used as the bio-carrier to enhance the biotransformation of waste activated sludge to produce medium-chain fatty acid by anaerobic fermentation. The synthesized composite had stable chemical properties and good biological affinity. The addition of Fe<sub>3</sub>O<sub>4</sub>@PANI can effectively promote the acidogenesis and chain elongation in the fermentation system. When 1 g/L of Fe<sub>3</sub>O<sub>4</sub>@PANI was added, the acid production from the fermentation system increased by up to 1.9 times, and the maximum acid production rate increased by 3.4 times. Meanwhile, the production of caproate increased by 2.79 times. It was demonstrated that the added Fe<sub>3</sub>O<sub>4</sub>@PANI facilitated the release of organic compounds from bacterial cells and improved the electrical activity of the sludge system, thereby accelerating the chain elongation to generate caproate. Moreover, the addition of Fe<sub>3</sub>O<sub>4</sub>@PANI can effectively enrich the functional microbes related to chain elongation, including <i>Clostridium </i><i>sensu stricto</i><i> 12</i>, <i>Dechloromonas</i>, <i>Romboutsia</i>, and <i>IMCC26207</i>.</p></div>\",\"PeriodicalId\":7220,\"journal\":{\"name\":\"Advanced Composites and Hybrid Materials\",\"volume\":\"7 4\",\"pages\":\"\"},\"PeriodicalIF\":23.2000,\"publicationDate\":\"2024-06-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Composites and Hybrid Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s42114-024-00919-1\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, COMPOSITES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Composites and Hybrid Materials","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s42114-024-00919-1","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, COMPOSITES","Score":null,"Total":0}
Fe3O4@PANI composite improves biotransformation of waste activated sludge into medium-chain fatty acid
Core–shell structured Fe3O4@PANI composite was prepared using a chemical oxidation polymerization method and used as the bio-carrier to enhance the biotransformation of waste activated sludge to produce medium-chain fatty acid by anaerobic fermentation. The synthesized composite had stable chemical properties and good biological affinity. The addition of Fe3O4@PANI can effectively promote the acidogenesis and chain elongation in the fermentation system. When 1 g/L of Fe3O4@PANI was added, the acid production from the fermentation system increased by up to 1.9 times, and the maximum acid production rate increased by 3.4 times. Meanwhile, the production of caproate increased by 2.79 times. It was demonstrated that the added Fe3O4@PANI facilitated the release of organic compounds from bacterial cells and improved the electrical activity of the sludge system, thereby accelerating the chain elongation to generate caproate. Moreover, the addition of Fe3O4@PANI can effectively enrich the functional microbes related to chain elongation, including Clostridium sensu stricto 12, Dechloromonas, Romboutsia, and IMCC26207.
期刊介绍:
Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field.
The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest.
Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials.
Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.