Methane production and microbial community analysis in the goethite facilitated anaerobic reactors using algal biomass

Tan, Juan; Wang, Jin; Xue, Jiangtao; Liu, Shaoyang; Peng, Shuchuan; Ma, Ding; Chen, Tianhu; Yue, Zhengbo

doi:10.1016/j.fuel.2014.12.087

Cited by 37 publications

(15 citation statements)

References 27 publications

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“…The continuous experiments could provide more information compared to the batch tests. The latter mostly reported the effects on the methanogenic step Tan et al, 2015;Yue et al, 2015). The results only confirmed that goethite could facilitate the methane production in the CSTRs and happened at a certain OLR level.…”

Section: Short Communicationmentioning

confidence: 93%

“…It was suggested that direct interspecies electron transfer (DIET) mediated by the conductive material played an important role. Goethite was one of the natural mineral products which was abundant in the world and had been confirmed to have the ability of promoting the anaerobic digestion of organic solid biomass (Ma, Wang, Shi, Chen, & Yue, 2015;Tan et al, 2015;Yue et al, 2015). Most of the experiments were performed in batch model and have not been explored in the anaerobic treatment of wastewater in the continuous operation reactors.…”

Section: Introductionmentioning

confidence: 99%

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Impact of goethite dosed continuous stirred tank reactor on continuous methane production at different organic loading rates

Wan

Peng

Zhang

et al. 2019

Water Environment Research

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Iron oxides facilitated anaerobic digestion process has been attracted more and more attention in the renewable energy production area. In the current study, goethite was added into the continuous stirred tank reactor with glucose as the substrate. Effect of the influent organic loading rate (OLR) on the reactor performances was explored. Results showed that goethite promoted the methane production significantly (p < 0.05) when OLR was changed between 1.20 and 1.80 g glucose L−1 day−1. Compared to the control reactor, addition of goethite improved the methane production by13.4%–22.9%. The iron reduction rate had a positive correlation with the methane production rate. Microbial community analysis results showed that OLRs influenced the dominant methanogenic species in the both reactors. Methanothrix, Methanobacterium, Methanosarcina, and Methanocella were dominant under various OLR levels. Practitioner points Goethite could promote the methanogenic process of glucose in the CSTRs under certain levels of OLRs. Iron reduction rate had a positive correlation with the methane production rate. OLRs influenced the dominant methanogenic species in the goethite‐dosed reactors.

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Section: Short Communicationmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Impact of goethite dosed continuous stirred tank reactor on continuous methane production at different organic loading rates

Wan

Peng

Zhang

et al. 2019

Water Environment Research

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“…In some instances, enhanced methane production is associated with an increased enrichment of microbes closely related to microbes that are available in pure culture that are known to participate in DIET, such as Geobacter , Syntrophus , Methnothrix , and Methanoarcina species ( Baek et al., 2016 ; Barua and Dhar, 2017 ; Guo et al., 2020 ; Kato et al., 2012a ; Lei et al., 2019 ; Lin et al., 2020 ; Ma et al., 2020a ; Mei et al., 2018 ; Shen et al, 2020 ; Tian et al., 2017 ; Wang et al., 2018a , 2018b , 2019b ; Xing et al., 2020 ; Xu et al., 2015 , 2016 ; Yan et al., 2018 ; Yang et al., 2017 ; Zhang et al., 2018b , 2020c ; Zhao et al., 2016a , 2017c ; Zhuang et al., 2015b ). However, in many other studies the addition of conductive materials to samples from anaerobic digesters or other methanogenic environments has led to the enrichment of other bacteria and methanogens ( Baek et al., 2015 ; Barua et al., 2018 ; Fu et al., 2018 ; Guo et al., 2018 , 2020 ; Hu et al., 2017 ; Im et al., 2019 ; Jing et al., 2017 ; Lei et al., 2016 , 2018 ; Lin et al., 2018 ; Luo et al., 2015 ; Ma et al., 2020b ; Mostafa et al., 2020 ; Ren et al., 2020 ; Rotaru et al., 2018 ; Sun et al., 2020 ; Tan et al., 2015 ; Usman et al., 2019 ; Wang et al., 2019a , 2020a ; Xia et al., 2019 ; Xu et al., 2018 ; Yamada et al., 2015 ; Yang et al., 2017 ; Yan et al., 2018 ; Yang et al., 2015 , 2016 , 2020 ; …”

Section: Diagnosing Success In Promoting Dietmentioning

confidence: 99%

“…However, a broad range of organic compounds are metabolized faster when DIET in methanogenic mixed-species systems is promoted with conductive materials in Table S2 . These include glycerol ( Im et al., 2019 ), oleic acid ( Mostafa et al., 2020 ), glucose ( Guo et al., 2018 , 2020 ; Luo et al., 2015 ; Ren et al., 2020 ; Tian et al., 2017 ; Xu et al., 2016 ; Yang et al., 2017 ; Zhang et al., 2020b ), sucrose ( Hu et al., 2017 ; Wang et al., 2018a , 2019a , 2019b ), phenol ( Yan et al., 2018 ), tryptone ( Yin et al., 2017a , 2017b , 2018 ), complex mixtures of fructose and polyethylene glycol ( Mei et al., 2018 ), hydrocarbons ( Usman et al., 2019 ; Yang et al., 2020 ), and N-heterocyclic compounds ( Wang et al., 2018b ), dairy waste ( Baek et al., 2016 ), whey ( Baek et al., 2015 ), leachate ( Lei et al., 2016 , 2018 , 2019 ), dog food ( Dang et al., 2016 , 2017 ), kitchen waste ( Capson-Tojo et al, 2018 ; Lim et al., 2020 ; Zhang et al., 2018a ), waste activated sludge ( Li et al., 2018 ; Sun et al., 2020 ; Wang et al., 2020d ; Yang et al., 2017 ), corn straw ( Zhu et al., 2019 ), and cyanobacterial biomass ( Tan et al., 2015 ). The possibility that these substrates directly serve as substrates for DIET will require more in-depth microbiological investigations.…”

Section: Diagnosing Success In Promoting Dietmentioning

confidence: 99%

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

et al. 2020

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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 the bacteria that oxidize organic waste components can forge electrical connections with methane-producing microbes through biologically produced, protein-based, conductive circuits. This direct interspecies electron transfer (DIET) is faster than interspecies electron exchange via diffusive electron carriers, such as H 2 . DIET is also more resilient to perturbations such as increases in organic load inputs or toxic compounds. However, with current digester practices DIET rarely predominates. Improvements in anaerobic digestion associated with the addition of electrically conductive materials have been attributed to increased DIET, but experimental verification has been lacking. This deficiency may soon be overcome with improved understanding of the diversity of microbes capable of DIET, which is leading to molecular tools for determining the extent of DIET. Here we review the microbiology of DIET, suggest molecular strategies for monitoring DIET in anaerobic digesters, and propose approaches for re-engineering digester design and practices to encourage DIET.

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“…At present, using conductive materials (carbon-based materials and conductive minerals) to improve the anaerobic digestion performance is a research hotspot. For example, nano-zero-valent iron (Suanon et al, 2017), goethite (Tan et al, 2015), hematite (Kato et al, 2012) and magnetite (Zhuang et al, 2015) can significantly increase methane production in anaerobic digesters by facilitating direct electron transfer between fermenting bacteria and methanogens or enriching functional microorganisms. Direct interspecies electron transfer (DIET) is an unconventional syntrophic methanogenesis metabolism in which electrons flow from syntrophic bacteria to methanogens via cell components like cytochrome c (c-Cyts), pilin, etc (Dubé & Guiot, 2015; Lovley, 2016).…”

Section: Introductionmentioning

confidence: 99%

Use of extracellular polymer substances as additives for improving biogas yield and digestion performance

Guo

et al. 2019

Preprint

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To understand how extracellular polymer substances (EPS) as additives promotes methanogenesis, 9 batch tests of methane production potential in anaerobic reactors with the addition of EPS or not were conducted. 10Research showed that EPS increased remarkably methane production during anaerobic digestion 11 (36.5% increase compared with the control). EPS enriched functional microorganisms such as Firmicutes, 12Actinobacteria, Synergistetes, and Chloroflexi. Among them, 8.86% OTUs from the important hydrolysis and 13 acidification phyla, which may be an important reason for the enhanced methanogenic capacity of anaerobic 14 granular sludge. Additionally, EPS also improved the abundance of cytochrome c (c-Cyts), accelerating the 15 direct interspecies electron transfer (DIET) between syntrophic bacteria and methanogens, thus enhancing the 16 methane production. Interestingly, the average particle size, volatile suspended solids/total suspended solids 17 (VSS/TSS) and EPS content of anaerobic granular sludge (AnGS) in the EPS reactor were approximately equal 18 to that of the control reactor during the anaerobic digestion, illustrating that EPS could not affect the 19 physicochemical properties of AnGS. Therefore, these results suggested that EPS mainly played a role in the 20 form of conductive materials in the anaerobic digestion process. Compared with conductive materials, EPS as 21 biomass conductive materials was not only environmentally friendly and economical but also no secondary 22 pollution. 23 materials 25 26 Importance 27Compared with the reported conductive materials, EPS has the potential of biodegradation, electron transfer 28 and no significant secondary pollution. Besides, there are few studies on the utilization of EPS resources, 29 especially the effect of EPS as an additive on anaerobic digestion performance. To clarify whether EPS as 30 conductive materials or carbon source promotes methanogenesis. Therefore, in this study, we investigated the 31 influence of EPS as an additive on the methanogenic capacity, physical-chemical properties, microbial 32 community structure and metabolic function of anaerobic granular sludge (AnGS), and preliminarily expatiate 33 the influence mechanism of EPS as an additive on methanogenesis. At the meantime, the research is expected to 34 provide new solutions for the improvement of anaerobic digestion performance and disposal of waste mud. 35 36 43 1 *Corresponding authors. Tel.: +86 18648908256; fax: +86 18648908256.

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Methane production and microbial community analysis in the goethite facilitated anaerobic reactors using algal biomass

Cited by 37 publications

References 27 publications

Impact of goethite dosed continuous stirred tank reactor on continuous methane production at different organic loading rates

Impact of goethite dosed continuous stirred tank reactor on continuous methane production at different organic loading rates

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

Use of extracellular polymer substances as additives for improving biogas yield and digestion performance

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