Multi-cycle anaerobic digestion of hydrothermal liquefaction aqueous phase: Role of carbon and iron based conductive materials in inhibitory compounds degradation, microbial structure shaping, and interspecies electron transfer regulation
文献类型：期刊论文
| 作者 | Zhu, Dengming2,3; Wang, Zixin4; Liu, Kaiqiang2; Si, Buchun1,2; Yang, Gaixiu3; Tian, Chunyan5; Zhang, Yuanhui4 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2023-02-15 |
| 卷号 | 454页码:11 |
| 关键词 | Multi-cycle anaerobic digestion HTL-AP Conductive materials DIET Microbial structure |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2022.140019 |
| 通讯作者 | Si, Buchun(sibuchun@cau.edu.cn) ; Yang, Gaixiu(yanggx@ms.giec.ac.cn) |
| 英文摘要 | Anaerobic digestion is commonly performed to treat hydrothermal liquefaction aqueous phase (HTL-AP), but the conversion is limited by the inhibitory compounds. This study was conducted to investigate the effects of adding granular activated carbon, biochar, and magnetite on the digestion of HTL-AP. Moreover, the enriched aggre-gates and conductive materials were recovered after experiment, and then reused to study the effects of multi -cycle digestion on organics degradation, microbial activity, and methane production. Results showed that the conductive materials significantly contributed to the digestion performance and maintained high activity after recycling. The degradation of organic matters, especially the removal of toxic compounds, the enrichment of functional microbes, as well as the production of methane can be further enhanced with the reuse of conductive materials. Specifically, a 77% higher methane production rate was observed in magnetite assisted digester after recycling. More than 80% of the nitrogen organics were degraded with biochar, and all potential inhibitors were completely removed with GAC addition. The diversity and abundance of microbes were improved, and the dominant structure was established in the first batch, then the enrichment was further stabilized after the recycling. Meanwhile, the sludge conductivity was increased by 28.1 and 8.5 times in GAC and magnetite di-gesters in the first batch and was further enhanced by 8.0% and 16.4% after the recycling, indicating the improved expression of conductive pili and cytochromes of the microbes. These results point to the establishment of direct interspecies electron transfer. This study showed promising prospects for the utilization and recycling of conductive materials in the anaerobic digestion of HTL-AP and its long-term applications. |
| WOS关键词 | GRANULAR ACTIVATED CARBON ; WASTE-WATER ; SLUDGE ; BIOCHAR ; FLOW ; OIL ; METHANOGENESIS ; METHANOSAETA ; ENHANCEMENT ; IMPROVEMENT |
| 资助项目 | Hainan Province Science and Technology Special Fund[ZDYF2021XDNY138] ; Ministry of Science and Technology of the People's Republic of China[2018YFE0111000] ; National Natural Science Foundation of China (NSFC)[U21A20162] ; National Natural Science Foundation of China (NSFC)[52176214] ; National Natural Science Foundation of China (NSFC)[51806243] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000918948100004 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | Hainan Province Science and Technology Special Fund ; Ministry of Science and Technology of the People's Republic of China ; National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38361]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Si, Buchun; Yang, Gaixiu |
| 作者单位 | 1.China Agr Univ, Sanya Inst, Sanya 572020, Hainan, Peoples R China 2.China Agr Univ, Lab Environm Enhancing Energy E2E, Key Lab Agr Engn Struct & Environm, Minist Agr & Rural Affairs, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Univ Illinois, Dept Agr & Biol Engn, Urbana, IL 61801 USA 5.Shandong Univ Technol, Sch Agr Engn & Food Sci, Zibo 255049, Shandong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Dengming,Wang, Zixin,Liu, Kaiqiang,et al. Multi-cycle anaerobic digestion of hydrothermal liquefaction aqueous phase: Role of carbon and iron based conductive materials in inhibitory compounds degradation, microbial structure shaping, and interspecies electron transfer regulation[J]. CHEMICAL ENGINEERING JOURNAL,2023,454:11. |
| APA | Zhu, Dengming.,Wang, Zixin.,Liu, Kaiqiang.,Si, Buchun.,Yang, Gaixiu.,...&Zhang, Yuanhui.(2023).Multi-cycle anaerobic digestion of hydrothermal liquefaction aqueous phase: Role of carbon and iron based conductive materials in inhibitory compounds degradation, microbial structure shaping, and interspecies electron transfer regulation.CHEMICAL ENGINEERING JOURNAL,454,11. |
| MLA | Zhu, Dengming,et al."Multi-cycle anaerobic digestion of hydrothermal liquefaction aqueous phase: Role of carbon and iron based conductive materials in inhibitory compounds degradation, microbial structure shaping, and interspecies electron transfer regulation".CHEMICAL ENGINEERING JOURNAL 454(2023):11. |
入库方式： OAI收割
来源：广州能源研究所
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