Results 31 to 40 of about 7,304 (176)

Promoting direct interspecies electron transfer with activated carbon

Energy & Environmental Science, 2012
Granular activated carbon (GAC) is added to methanogenic digesters to enhance conversion of wastes to methane, but the mechanism(s) for GAC's stimulatory effect are poorly understood. GAC has high electrical conductivity and thus it was hypothesized that one mechanism for GAC stimulation of methanogenesis might be to facilitate direct interspecies ...
Liu, Fanghua, Rotaru, Amelia-Elena, Shrestha, Pravin M., Malvankar, Nikhil S., Nevin, Kelly, Lovley, Derek R.   +5 more
core   +6 more sources

Methane production by Methanothrix thermoacetophila via direct interspecies electron transfer with Geobacter metallireducens [PDF]

mBio, 2023
Methanothrix is widely distributed in natural and artificial anoxic environments and plays a major role in global methane emissions. It is one of only two genera that can form methane from acetate dismutation and through participation in direct ...
Jinjie Zhou, Jessica A. Smith, Meng Li, Dawn E. Holmes   +3 more
doaj   +2 more sources

Different outer membrane c‐type cytochromes are involved in direct interspecies electron transfer to Geobacter or Methanosarcina species [PDF]

mLife, 2022
Direct interspecies electron transfer (DIET) may be most important in methanogenic environments, but mechanistic studies of DIET to date have primarily focused on cocultures in which fumarate was the terminal electron acceptor.
Dawn E. Holmes, Jinjie Zhou, Jessica A. Smith, Caiqin Wang, Xinying Liu, Derek R. Lovley   +5 more
doaj   +2 more sources

Sparking Anaerobic Digestion: Promoting Direct Interspecies Electron Transfer to Enhance Methane Production [PDF]

iScience, 2020
Anaerobic digestion was one of the first bioenergy strategies developed, yet the interactions of the microbial community that is responsible for the production of methane are still poorly understood. For example, it has only recently been recognized that
Zhiqiang Zhao, Yang Li, Yaobin Zhang, Derek R. Lovley   +3 more
doaj   +2 more sources

Enhanced Anaerobic Digestion Using Conductive Materials through Mediation of Direct Microbial Interspecies Electron Transfer: A Review

Fermentation, 2023
The anaerobic digestion (AD) of organic matter is susceptible to the challenges posed by low-speed electron transfer between microorganisms and the limitation of low hydrogen partial pressure, resulting in low methane recovery efficiency and poor system ...
Tianqi Kong, Wanli Zhang
doaj   +2 more sources

Effects of foam nickel supplementation on anaerobic digestion: Direct interspecies electron transfer [PDF]

Journal of Hazardous Materials, 2020
Stimulating direct interspecies electron transfer with conductive materials is a promising strategy to overcome the limitation of electron transfer efficiency in syntrophic methanogenesis of industrial wastewater. This paper assessed the impact of conductive foam nickel (FN) supplementation on syntrophic methanogenesis and found that addition of 2.45 g/
Guo, Xiaobo, Sun, Chihe, Lin, Richen, Xia, Ao, Huang, Yun, Zhu, Xianqing, Show, Pau-Loke, Murphy, Jerry D.   +7 more
openaire   +4 more sources

Analysis of Mechanisms for Electron Uptake by <i>Methanothrix harundinacea</i> 6Ac During Direct Interspecies Electron Transfer. [PDF]

Int J Mol Sci
Direct interspecies electron transfer (DIET) is a syntrophic metabolism wherein free electrons are directly transferred between microorganisms without the mediation of intermediates such as molecular hydrogen or formate. Previous research has demonstrated that Methanothrix harundinacea 6Ac is capable of reducing carbon dioxide through DIET.
Wang L, Shan X, Xu Y, Xi Q, Jiang H, Li X.   +5 more
europepmc   +3 more sources

Geobacter Strains Expressing Poorly Conductive Pili Reveal Constraints on Direct Interspecies Electron Transfer Mechanisms [PDF]

mBio, 2018
Cytochrome-to-cytochrome electron transfer and electron transfer along conduits of multiple extracellular magnetite grains are often proposed as strategies for direct interspecies electron transfer (DIET) that do not require electrically conductive pili (
Toshiyuki Ueki, Kelly P. Nevin, Amelia-Elena Rotaru, Li-Ying Wang, Joy E. Ward, Trevor L. Woodard, Derek R. Lovley   +6 more
doaj   +2 more sources

Facilitation of interspecies electron transfer in anaerobic processes through pine needle biochar

Water Science and Technology, 2022
Role of biochar in promoting methanogenesis during anaerobic processes was investigated in this research. Biochar produced from Himalayan pine needles was used as medium for conductive material mediated interspecies electron transfer (CM-IET) amongst the
Chander Mohan, Ajit Annachhatre
doaj   +3 more sources

Graphene Facilitates Biomethane Production from Protein-Derived Glycine in Anaerobic Digestion [PDF]

iScience, 2018
Summary: Interspecies electron transfer is a fundamental factor determining the efficiency of anaerobic digestion (AD), which involves syntrophy between fermentative bacteria and methanogens.
Richen Lin, Chen Deng, Jun Cheng, Ao Xia, Piet N.L. Lens, Stephen A. Jackson, Alan D.W. Dobson, Jerry D. Murphy   +7 more
doaj   +2 more sources