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 +5 more
core +6 more sources
Plugging in or Going Wireless: Strategies for Interspecies Electron Transfer
Frontiers in Microbiology, 2014 Interspecies exchange of electrons enables a diversity of microbial communities to gain energy from reactions that no one microbe can catalyze. The first recognized strategies for interspecies electron transfer were those that relied on chemical ...
Pravin Malla Shrestha +2 more
doaj +3 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 +7 more
openaire +4 more sources
A Review on the Interspecies Electron Transfer of Methane Production in Anaerobic Digestion System
Fermentation, 2023 Anaerobic methanogenesis plays an important role in the sustainable management of high concentration organic wastewater and bioenergy recovery. Interspecies electron transfer (IET) is a new type of mutualistic symbiosis that can accelerate microbial ...
Kai Su, Linxiao Li, Qin Wang, Rong Cao
doaj +2 more sources
Direct interspecies electron transfer enables anaerobic oxidation of sulfide to elemental sulfur coupled with CO2-reducing methanogenesis [PDF]
iScience, 2023 Summary: Electric syntrophy between fatty acid oxidizers and methanogens through direct interspecies electron transfer (DIET) is essential for balancing acidogenesis and methanogenesis in anaerobic digestion.
Heejung Jung, Hyeonjung Yu, Changsoo Lee
doaj +2 more sources
Improvement of Direct Interspecies Electron Transfer via Adding Conductive Materials in Anaerobic Digestion: Mechanisms, Performances, and Challenges [PDF]
Frontiers in Microbiology, 2022 Anaerobic digestion is an effective and sustainable technology for resource utilization of organic wastes. Recently, adding conductive materials in anaerobic digestion to promote direct interspecies electron transfer (DIET) has become a hot topic, which ...
Le Chen +10 more
doaj +2 more sources
Syntrophy Goes Electric: Direct Interspecies Electron Transfer
Annual Review of Microbiology, 2017 Direct interspecies electron transfer (DIET) has biogeochemical significance, and practical applications that rely on DIET or DIET-based aspects of microbial physiology are growing. Mechanisms for DIET have primarily been studied in defined cocultures in which Geobacter species are one of the DIET partners. Electrically conductive pili (e-pili) can be
Derek R. Lovley
openaire +3 more sources
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 +6 more
doaj +2 more sources
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
Analysis of Mechanisms for Electron Uptake by <i>Methanothrix harundinacea</i> 6Ac During Direct Interspecies Electron Transfer. [PDF]
Int J Mol SciDirect 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 +5 more
europepmc +4 more sources