数字农科院2.0

Interspecies electron transfer regulation in a stage-separated anaerobic digestion system: The role of inoculum strategies, activated carbon integration, and organic loading rate adjustment

文献类型： 外文期刊

作者： Shuai Tang;Sijie Huang;Buchun Si;Zixin Wang;Haifeng Lu;Weizhong Jiang;Yuanhui Zhang

作者机构：

关键词： Activated carbon;Inoculum;Interspecies electron transfer;Multistage anaerobic hythane reactor (MAHR);Organic loading rate

期刊名称： Chemical Engineering Journal

ISSN： 1385-8947

年卷期： 2024 年 492 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Understanding and regulation of interspecies electron transfer, including hydrogen-mediated interspecies electron transfer (MIET) and direct interspecies electron transfer (DIET), is crucial for enhancing anaerobic digestion (AD). In this study, MIET and DIET were regulated in a multistage anaerobic hythane reactor (MAHR) via inoculum management, activated carbon (AC) addition, and organic loading rate (OLR) adjustment. The operational stability, organic removal, and methane production can be enhanced, with AC addition in the methane production zone (Mm) (RpCMm and RnpCMm). The reactors of RpCMm and RnpCMm achieved start-up within 20 days and showed a 20 % and 104 % increase in maximum methane production rates, respectively. Microbial community characteristics confirmed that AC in Mm could facilitate DIET establishment, but its addition in Mh could not. This assertion was supported by the observed tighter and more positive correlation between biofilm conductivity and DIET-related microbes in RpCMm and RnpCMm, as opposed to RpCMh and RnpCMh. Further, the dual drive of DIET and MIET was revealed through the comprehensive analysis of operational performances and microbial community with the structure equation model. The electron fluxes analysis highlighted a dynamic shift of DIET and MIET in the methanogenic stage with AC addition and OLR variation. The DIET was proved more efficient than MIET in Mm with AC addition and OLR below 40 g COD/L/d, while high OLR (80 g COD/L/d) favored MIET with lower methane production efficiency. The results of this study shed light on the nuanced characteristics of interspecies electron transfer, providing valuable insights for the further design and operation of stage-separated AD.

分类号：

  • 相关文献

[1]Enhancing lactic acid production by organic loading rate regulation during anaerobic co-fermentation: Insights into metabolic and bacterial responses. Tianjing Lian,Fubin Yin,Qitao Cao,Tanlong Zhou,Fangyu Zhang,Jiaxin Sun,Yangyang Cai,Hongmin Dong. 2025

[2]Excessive humus fertilization accelerates antibiotic resistance genes dissemination in soil: Interspecies electron transfer-mediated ecological succession as a key mechanism. Yang, Qifan,Zhang, Dandan,Ding, Yinuo,Li, Ruolan,Li, Houyu,Xu, Yan. 2025

[3]Coupled extracellular and intracellular electron transfer chains in methanogens: Mechanisms, energy conservation, and application potential. Pengyu Chen,Shuai Tang,Buchun Si,Jiawei Lu,Haifeng Lu,Chaoyuan Wang,Weizhong Jiang,Anina James,Junting Pan. 2025

[4]Therapeutic Effect of Activated Carbon-Induced Constipation Mice with Lactobacillus fermentum Suo on Treatment. Suo, Huayi,Xie, Jie,Zhao, Xin,Qian, Yu,Li, Guijie,Liu, Zhenhu,Li, Jian. 2014

[5]Therapeutic effects of Lactobacillus casei Qian treatment in activated carbon-induced constipated mice. Zhao, Xin,Qian, Yu,Li, Gui-Jie,Suo, Hua-Yi,Liu, Zhen-Hu,Li, Jian.

[6]Preventive Effect of Lactobacillus fermentum Zhao on Activated Carbon-Induced Constipation in Mice. Zhao, Xin,Qian, Yu,Li, Guijie,Suo, Huayi,Du, Muying,Liu, Zhenhu,Li, Jian.

[7]Co-pyrolysis behaviour and kinetic of two typical solid wastes in China and characterisation of activated carbon prepared from pyrolytic char. Ma, Yuhui,Niu, Ruxuan,Wang, Xiaona,Wang, Qunhui,Wang, Xiaoqiang,Sun, Xiaohong.

[8]Adsorption of avermectins on activated carbon: Equilibrium, kinetics, and UV-shielding. Gu Wei,Sun Chang-jian,Liu Qi,Cui Hai-xin. 2009

[9]Preparation of activated carbon from a renewable agricultural residue of pruning mulberry shoot. Wang, Jun,Wu, Fu-An,Wang, Meng,Qiu, Ning,Liang, Yao,Fang, Shui-Qin,Jiang, Xing,Wu, Fu-An. 2010

[10]Analysis of eight organophosphorus pesticide residues in fresh vegetables retailed in agricultural product markets of Nanjing, China. Wang, Ligang,Jiang, Xin,Wang, Ligang,Liang, Yongchao,Wang, Ligang,Liang, Yongchao. 2008

[11]The Enhanced And Tunable Sustained Release Of Pesticides Using Activated Carbon As A Carrier. Yang, Jun,Yang, Jun,Wang, Peng,Yang, Qing,Zhang, Zheng,Zang, Wanyu. 2019

[12]Porous Carbonaceous Materials From Hydrothermal C.arbonization And Koh Activation O f Corn Stover For Highly Efficient Co2 Capture. Shen, F, Wang, Y, Li, LY, Zhang, KQ, Smith, RL, Qi, XH. 2018

[13]Simultaneous reductions in antibiotics and heavy metal pollution during manure composting. Hui Lin,Wanchun Sun,Yijun Yu,Yongzhen Ding,Yuyi Yang,Zulin Zhang,Junwei Ma. 2021

[14]Form-stable polyethylene glycol/activated carbon composite phase change materials for thermal energy storage. Zheng, Rui,Cai, Zhengyu,Wang, Chaoming,Shen, Jianfen,Xie, Shuaiao,Qi, Zhiyong. 2023

[15]Nitrate removal for drinking water by FeCl3-oxidated polypyrrole- grafted activated carbon: Adsorption property and mechanism. Yanan Zhao,Jixiu Jia,Chunlu Li,Chuanping Feng,Zonglu Yao,Nan Chen. 2023

[16]Application of Sawdust-Derived Activated Carbon as a Bio-Based Filler in Vulcanized Rubber Bushings. Enasty Pratiwi Wulandari,Popy Marlina,Nasruddin,Lanjar,Heryoki Yohanes,Wahju Eko Widodo,S. Joni Munarso,Astuti,Eko Bhakti Susetyo,Yenni Bakhtiar,Haixin Guo,Wahyu Bahari Setianto. 2025

作者其他论文 更多>>