Improved electricity generation, coulombic efficiency and microbial community structure of microbial fuel cells using sodium citrate as an effective additive

2021 ◽  
Vol 482 ◽  
pp. 228947
Author(s):  
Wenwen Chen ◽  
Zhongliang Liu ◽  
Yanxia Li ◽  
Xiaoye Xing ◽  
Qiang Liao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Sodium Citrate ◽  
Coulombic Efficiency ◽  
Effective Additive

scholarly journals Biological degradation of potato pulp waste and microbial community structure in microbial fuel cells

RSC Advances ◽  
2017 ◽  
Vol 7 (14) ◽  
pp. 8376-8380 ◽  
Author(s):  
Yushi Tian ◽  
Xiaoxue Mei ◽  
Qing Liang ◽  
Di Wu ◽  
Nanqi Ren ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Microbial Fuel Cells ◽  
Energy Production ◽  
Alternative Energy ◽  
Biological Degradation ◽  
Potato Pulp ◽  
Degrading Bacteria

The syntrophic interactions between polysaccharide-degrading bacteria and exoelectrogens drove simultaneous alternative energy production and degradation of potato pulp waste in microbial fuel cells.

Response of the microbial community structure of biofilms to ferric iron in microbial fuel cells

2018 ◽  
Vol 631-632 ◽  
pp. 695-701 ◽  
Author(s):  
Qian Liu ◽  
Yang Yang ◽  
Xiaoxue Mei ◽  
Bingfeng Liu ◽  
Chuan Chen ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Microbial Fuel Cells ◽  
Ferric Iron

scholarly journals Burial depth of anode affected the bacterial community structure of sediment microbial fuel cells

2019 ◽  
Vol 25 (6) ◽  
pp. 871-877 ◽  
Author(s):  
Yi-cheng Wu ◽  
Hong-jie Wu ◽  
Hai-yan Fu ◽  
Zhineng Dai ◽  
Ze-jie Wang
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Diversity ◽  
Microbial Community Structure ◽  
Contaminated Soils ◽  
Microbial Fuel Cells ◽  
Rrna Gene ◽  
Burial Depth ◽  
Operational Taxonomic Units

Sediment microbial fuel cells (SMFCs) are attractive devices to in situ power environmental monitoring sensors and bioremediate contaminated soils/sediments. Burial depth of the anode was verified to affect the performance of SMFCs. The present research evaluated the differences in microbial community structure of anodic biofilms located at different depth. It was demonstrated that both microbial diversity and community structure of anodic biofilms were influenced by the depth of anode location. Microbial diversity decreased with increased anodic depth. The number of the operational taxonomic units (OTUs) was determined as 1438 at the anode depth of 5 cm, which reduced to 1275 and 1005 at 10 cm and 15 cm, respectively. Cluster analysis revealed that microbial communities of 5 cm and 10 cm were clustered together, separated from the original sediment and 15 cm. Proteobacteria was the predominant phylum in all samples, followed by Bacteroidetes and Firmicutes. Beta-and Gamma-proteobacteria were the most abundant classes. A total of 23 OTUs showed high identity to 16S rRNA gene of exoelectrogens such as Geobacter and Pseudomonas. The present results provided insights into the effects of anode depth on the performance of SMFC from the perspectives of microbial community structure.

scholarly journals Efficient Removal of Butachlor and Change in Microbial Community Structure in Single-Chamber Microbial Fuel Cells

2019 ◽  
Vol 16 (20) ◽  
pp. 3897
Author(s):  
Xiaojing Li ◽  
Yue Li ◽  
Lixia Zhao ◽  
Yang Sun ◽  
Xiaolin Zhang ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Carbon Source ◽  
Microbial Community Structure ◽  
Microbial Fuel Cells ◽  
Sodium Acetate ◽  
Sole Carbon Source ◽  
High Throughput Sequencing ◽  
Single Chamber

Microbial electrochemical technology provides an inexhaustible supply of electron acceptors, allowing electroactive microorganisms to generate biocurrent and accelerate the removal of organics. The treatment of wastewater contaminated by butachlor, which is a commonly used chloroacetamide herbicide in paddy fields, is a problem in agricultural production. In this study, butachlor was found to be removed efficiently (90 ± 1%) and rapidly (one day) in constructed single-chamber microbial fuel cells (MFCs). After the addition of sodium acetate to MFCs with butachlor as the sole carbon source, electricity generation was recovered instead of increasing the degradation efficiency of butachlor. Meanwhile, the microbial community structure was changed in anodic and cathodic biofilms after the addition of butachlor, following the bioelectrochemical degradation of butachlor. High-throughput sequencing showed the proliferation of Paracoccus and Geobacter in MFCs with butachlor as the sole carbon source and of Thauera butanivorans in MFCs with butachlor and sodium acetate as concomitant carbon sources. These species possess the ability to oxidize different substituents of butachlor and have important potential use for the bioremediation of wastewater, sediments, and soils.

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