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.

Microbial community structure of anode electrodes in microbial fuel cells and microbial electrolysis cells

2020 ◽  
Vol 34 ◽  
pp. 101140 ◽  
Author(s):  
Abdullah Almatouq ◽  
Akintunde O. Babatunde ◽  
Mishari Khajah ◽  
Gordon Webster ◽  
Mohammad Alfodari
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Microbial Fuel Cells ◽  
Microbial Electrolysis Cells ◽  
Electrolysis Cells ◽  
Microbial Electrolysis

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.

Electricity generation from food wastes and microbial community structure in microbial fuel cells

2013 ◽  
Vol 144 ◽  
pp. 94-99 ◽  
Author(s):  
Jianna Jia ◽  
Yu Tang ◽  
Bingfeng Liu ◽  
Di Wu ◽  
Nanqi Ren ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Microbial Fuel Cells ◽  
Electricity Generation ◽  
Food Wastes

scholarly journals Multistage A-O Activated Sludge Process for Paraformaldehyde Wastewater Treatment and Microbial Community Structure Analysis

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Danyang Zheng ◽  
Yujiao Sun ◽  
Huijuan Li ◽  
Sidan Lu ◽  
Mingjun Shan ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Activated Sludge ◽  
Microbial Diversity ◽  
Microbial Community Structure ◽  
High Throughput Sequencing ◽  
Diversity Index ◽  
Public Health Issue ◽  
Activated Sludge Process ◽  
Degrading Bacteria

In recent years, the effect of formaldehyde on microorganisms and body had become a global public health issue. The multistage combination of anaerobic and aerobic process was adopted to treat paraformaldehyde wastewater. Microbial community structure in different reaction stages was analyzed through high-throughput sequencing. Results showed that multistage A-O activated sludge process positively influenced polyformaldehyde wastewater. The removal rates of formaldehyde were basically stable at more than 99% and those of COD were about 89%. Analysis of the microbial diversity index indicated that the microbial diversity of the reactor was high, and the treatment effect was good. Moreover, microbial community had certain similarity in the same system. Microbial communities in different units also showed typical representative characteristics affected by working conditions and influent concentrations. Proteobacteria, Firmicutes, and Bacteroidetes were the dominant fungal genera in the phylum level of community composition. As to family and genus levels, Peptostreptococcaceae was distributed at various stages and the dominant in this system. This bacterium also played an important role in organic matter removal, particularly decomposition of the acidified middle metabolites. In addition, Rhodobacteraceae and Rhodocyclaceae were the formaldehyde-degrading bacteria found in the reactor.

scholarly journals Bioremediation of Historically Chlorimuron-Ethyl-Contaminated Soil by Co-Culture Chlorimuron-Ethyl-Degrading Bacteria Combined with the Spent Mushroom Substrate

2020 ◽  
Vol 8 (3) ◽  
pp. 369
Author(s):  
Hailian Zang ◽  
Wanjun Liu ◽  
Yi Cheng ◽  
Hailan Wang ◽  
Xuejiao An ◽  
...  
Keyword(s):  
Community Structure ◽  
Microbial Community ◽  
Microbial Community Structure ◽  
Contaminated Soil ◽  
Agricultural Waste ◽  
Spent Mushroom Substrate ◽  
Long Term Effects ◽  
Degrading Bacteria ◽  
Chlorimuron Ethyl

In this study, a novel chlorimuron-ethyl-degrading Pleurotus eryngiu-SMS-CB was successfully constructed for remediation of soil historically contaminated with chlorimuron-ethyl. The P. eryngiu-SMS-CB was prepared using efficient chlorimuron-ethyl-degrading cocultured bacteria, Rhodococcus sp. D310-1 and Enterobacter sp. D310-5, with spent mushroom substrate (SMS, a type of agricultural waste containing laccase) of Pleurotus eryngiu as a carrier. The chlorimuron-ethyl degradation efficiency in historically chlorimuron-ethyl-contaminated soil reached 93.1% at the end of 80 days of treatment with the P. eryngiu-SMS-CB. Although the P. eryngiu-SMS-CB altered the microbial community structure at the beginning of the 80 days, the bacterial population slowly recovered after 180 days; thus, the P. eryngiu-SMS-CB does not have an excessive effect on the long-term microbial community structure of the soil. Pot experiments indicated that contaminated soil remediation with P. eryngiu-SMS-CB reduced the toxic effects of chlorimuron-ethyl on wheat. This paper is the first to attempt to use chlorimuron-ethyl-degrading bacterial strains adhering to P. eryngiu-SMS to remediate historically chlorimuron-ethyl-contaminated soil, and the microbial community structure and P. eryngiu-SMS-CB activity in chlorimuron-ethyl-contaminated soil were traced in situ to evaluate the long-term effects of this remediation.

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