Microbial Electricity Generation and Isolation of Exoelectrogenic Bacteria Based on Petroleum Hydrocarbon‐contaminated Soil

Zhou, Lei; Deng, Dewei; Zhang, Di; Chen, Qi; Kang, Jae-Heon; Fan, Ning‐Juan; Liu, Ying

doi:10.1002/elan.201501052

Cited by 41 publications

(20 citation statements)

References 40 publications

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“…Fe cycling bridges organic pollutant degradation, anode and Fe in MFC (Kato et al, 2010). Fe 3+ /Fe cycling, via indirect electron transfer, is involved in power output and PAH degradation started by the increased abundance of Geobacter (Zhou et al, 2016). Fe 3+ and sulfate assist in PAH removal in SMFC, and the anode is main TEA triggering PAH degradation and maintaining stable voltage (Hamdan et al, 2017).…”

Section: Anode Microbe As Exoelectrogenmentioning

confidence: 99%

“…), e.g., Kocuria (Actinobacteria;Luo et al, 2015), Bacteroides (Toczylowska-Maminska et al, 2018), Proteiniphilum (Bacteroidetes; Yu et al, 2019), Geobacillus (Firmicutes;Venkidusamy et al, 2016), Shewanella (Gammaproteobacteria), Rhodopseudomonas (Alphaproteobacteria), Geoalkalibacter (Deltaproteobacteria;Hamdan et al, 2017), Ochrobactrum and Azospirillum (Alphaproteobacteria)(Zhou et al, 2016;Li et al, 2019a), and Escherichia sp. (Gammaproteobacteria;Li et al, 2014), also have higher abundance under power output condition.…”

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confidence: 99%

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The Utility of Electrochemical Systems in Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Discourse, Diversity and Design

Hao

Li²,

Xiao

et al. 2020

Front. Microbiol.

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Section: Anode Microbe As Exoelectrogenmentioning

confidence: 99%

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confidence: 99%

The Utility of Electrochemical Systems in Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Discourse, Diversity and Design

Hao

Li²,

Xiao

et al. 2020

Front. Microbiol.

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“…Microbial fuel cell (MFC) is a special type of bioelectrochemical system with no supply of external voltage, but instead, generation of renewable energy from the water treatment process. Previously, different types of toxic and recalcitrant organic pollutants, such as benzene, phenol, naphthalene, phenanthrene, and furfural, have been effectively treated through oxidative processes in anode chambers of MFCs, and maximum power densities of 7–220 mW/m 2 have been achieved (Adelaja, Keshavarz, & Kyazze, ; Wang, Luo, Fallgren, Jin, & Ren, ; Zhou et al, ). Besides, MFCs have been utilized to treat groundwater polluted by both organic contaminants, such as benzene and phenolic compounds in anode chambers, as well as inorganic contaminants, such as nitrate, perchlorate, and Cr(VI) in cathode chambers (Butler, Clauwaert, Green, Verstraete, & Nerenberg, ; Hedbavna, Rolfe, Huang, & Thornton, ; Liu, Lai, Ye, & Lin, ; Pous, Puig, Coma, Balaguer, & Colprim, ).…”

Section: Introductionmentioning

confidence: 99%

1,4‐Dioxane‐contaminated groundwater remediation in the anode chamber of a microbial fuel cell

Aryal

Xia

Liu

2019

Water Environment Research

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A two-chambered microbial fuel cell (MFC) was used for the first time for the remediation of an emerging contaminant-1,4-dioxane in its anode chamber. Groundwater historically detected 1,4-dioxane contamination was sampled from a Superfund site.Comparative study was carried out between metabolic (i.e., 1,4-dioxane as sole carbon source) and cometabolic (i.e., 1,4-dioxane and methanol as carbon sources) anodic degradations. It was found that cometabolic degradation increased 1,4-dioxane removal by 10%-52% after 7 days and increased maximum power production of the MFC by 18% to 88.9 mW/m 3 . Oxalic acid was detected as a main metabolic degradation product. Beside oxalic acid, acetic acid and isopropanol were also detected as main products for cometabolic degradation. The presence of a biofilm for 1,4-dioxane anodic degradation was observed by a scanning electron microscopy. Phyla of Bacteroidetes, Firmicutes, and Proteobacteria, as well as a variety of species, were identified for the first time-especially Rikenella sp. and Solitalea canadensis, whose relative abundances were the highest of 18.8% and 24.0% for metabolic and cometabolic degradation, respectively. This study provided an innovative and sustainable approach for 1,4-dioxane anodic biodegradation, which would be potentially utilized for remediation of groundwater contaminated by 1,4-dioxane. © 2019 Water Environment Federation • Practitioner points• Groundwater contaminated with 1,4-dioxane was remediated in the anode chamber of a two-chambered microbial fuel cell. • Cometabolic pathway increased 1,4-dioxane removal and power production of the MFC compared to metabolic pathway. • The presence of a biofilm for 1,4-dioxane anodic degradation was observed, and oxalic acid was a main degradation product. • This study would be potentially utilized for 1,4-dioxane-contaminated groundwater remediation with simultaneous energy production. • External voltage supply for bioelectrochemical remediation of groundwater would potentially be reduced when treating chlorinated hydrocarbons co-occurred with 1,4-dioxane.

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“…Such remediation systems transform the chemical energy available in organic pollutants into electrical energy by capitalizing on the biocatalytic potential of electroactive communities ( Morris and Jin, 2012 ; Venkidusamy et al, 2016 ). These systems offer a unique platform to study the electro-microbial process involved in bioremediation of oil pollutants ( Venkidusamy et al, 2016 ) and heavy metals ( Qiu et al, 2017 ; Wang et al, 2017 ), etc., The electroactive biofilms are those that have the capabilities of extracellular electron flow (EET) to degrade substrates that range from easily degradable natural organic compounds to xenobiotic compounds such as petroleum hydrocarbon (PH) contaminants ( Venkidusamy et al, 2016 ; Zhou et al, 2016 ). Such biofilms can be formed by a single bacterial species (pure strain) ( Venkidusamy and Megharaj, 2016a , b ) or by multiple bacterial species (mixed culture) ( Morris et al, 2009 ).…”

Section: Introductionmentioning

confidence: 99%

Petrophilic, Fe(III) Reducing Exoelectrogen Citrobacter sp. KVM11, Isolated From Hydrocarbon Fed Microbial Electrochemical Remediation Systems

2018

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Exoelectrogenic biofilms capable of extracellular electron transfer are important in advanced technologies such as those used in microbial electrochemical remediation systems (MERS) Few bacterial strains have been, nevertheless, obtained from MERS exoelectrogenic biofilms and characterized for bioremediation potential. Here we report the identification of one such bacterial strain, Citrobacter sp. KVM11, a petrophilic, iron reducing bacterial strain isolated from hydrocarbon fed MERS, producing anodic currents in microbial electrochemical systems. Fe(III) reduction of 90.01 ± 0.43% was observed during 5 weeks of incubation with Fe(III) supplemented liquid cultures. Biodegradation screening assays showed that the hydrocarbon degradation had been carried out by metabolically active cells accompanied by growth. The characteristic feature of diazo dye decolorization was used as a simple criterion for evaluating the electrochemical activity in the candidate microbe. The electrochemical activities of the strain KVM11 were characterized in a single chamber fuel cell and three electrode electrochemical cells. The inoculation of strain KVM11 amended with acetate and citrate as the sole carbon and energy sources has resulted in an increase in anodic currents (maximum current density) of 212 ± 3 and 359 ± mA/m2 with respective coulombic efficiencies of 19.5 and 34.9% in a single chamber fuel cells. Cyclic voltammetry studies showed that anaerobically grown cells of strain KVM11 are electrochemically active whereas aerobically grown cells lacked the electrochemical activity. Electrobioremediation potential of the strain KVM11 was investigated in hydrocarbonoclastic and dye detoxification conditions using MERS. About 89.60% of 400 mg l-1 azo dye was removed during the first 24 h of operation and it reached below detection limits by the end of the batch operation (60 h). Current generation and biodegradation capabilities of strain KVM11 were examined using an initial concentration of 800 mg l-1 of diesel range hydrocarbons (C9-C36) in MERS (maximum currentdensity 50.64 ± 7 mA/m2; power density 4.08 ± 2 mW/m2, 1000 ω, hydrocarbon removal 60.14 ± 0.7%). Such observations reveal the potential of electroactive biofilms in the simultaneous remediation of hydrocarbon contaminated environments with generation of energy.

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Microbial Electricity Generation and Isolation of Exoelectrogenic Bacteria Based on Petroleum Hydrocarbon‐contaminated Soil

Cited by 41 publications

References 40 publications

The Utility of Electrochemical Systems in Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Discourse, Diversity and Design

The Utility of Electrochemical Systems in Microbial Degradation of Polycyclic Aromatic Hydrocarbons: Discourse, Diversity and Design

1,4‐Dioxane‐contaminated groundwater remediation in the anode chamber of a microbial fuel cell

Petrophilic, Fe(III) Reducing Exoelectrogen Citrobacter sp. KVM11, Isolated From Hydrocarbon Fed Microbial Electrochemical Remediation Systems

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