| Title |
Microbial community composition and electricity generation in cattle manure slurry treatment using microbial fuel cells: effects of inoculum addition
|
|---|---|
| Published in |
Environmental Science and Pollution Research, August 2017
|
| DOI | 10.1007/s11356-017-9959-4 |
| Pubmed ID | |
| Authors |
Binghan Xie, Weijia Gong, An Ding, Huarong Yu, Fangshu Qu, Xiaobin Tang, Zhongsen Yan, Guibai Li, Heng Liang |
| Abstract |
Microbial fuel cell (MFC) is a sustainable technology to treat cattle manure slurry (CMS) for converting chemical energy to bioelectricity. In this work, two types of allochthonous inoculum including activated sludge (AS) and domestic sewage (DS) were added into the MFC systems to enhance anode biofilm formation and electricity generation. Results indicated that MFCs (AS + CMS) obtained the maximum electricity output with voltage approaching 577 ± 7 mV (~ 196 h), followed by MFCs (DS + CMS) (520 ± 21 mV, ~ 236 h) and then MFCs with autochthonous inoculum (429 ± 62 mV, ~ 263.5 h). Though the raw cattle manure slurry (RCMS) could facilitate electricity production in MFCs, the addition of allochthonous inoculum (AS/DS) significantly reduced the startup time and enhanced the output voltage. Moreover, the maximum power (1.259 ± 0.015 W/m(2)) and the highest COD removal (84.72 ± 0.48%) were obtained in MFCs (AS + CMS). With regard to microbial community, Illumina HiSeq of the 16S rRNA gene was employed in this work and the exoelectrogens (Geobacter and Shewanella) were identified as the dominant members on all anode biofilms in MFCs. For anode microbial diversity, the MFCs (AS + CMS) outperformed MFCs (DS + CMS) and MFCs (RCMS), allowing the occurrence of the fermentative (e.g., Bacteroides) and nitrogen fixation bacteria (e.g., Azoarcus and Sterolibacterium) which enabled the efficient degradation of the slurry. This study provided a feasible strategy to analyze the anode biofilm formation by adding allochthonous inoculum and some implications for quick startup of MFC reactors for CMS treatment. |
X Demographics
The data shown below were collected from the profiles of 3 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 3 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 67% |
| Scientists | 1 | 33% |
Mendeley readers
The data shown below were compiled from readership statistics for 36 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 36 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 6 | 17% |
| Student > Ph. D. Student | 6 | 17% |
| Student > Bachelor | 3 | 8% |
| Student > Postgraduate | 3 | 8% |
| Other | 2 | 6% |
| Other | 5 | 14% |
| Unknown | 11 | 31% |
| Readers by discipline | Count | As % |
|---|---|---|
| Engineering | 5 | 14% |
| Agricultural and Biological Sciences | 4 | 11% |
| Environmental Science | 4 | 11% |
| Chemical Engineering | 3 | 8% |
| Unspecified | 1 | 3% |
| Other | 5 | 14% |
| Unknown | 14 | 39% |
Attention Score in Context
This research output has an Altmetric Attention Score of 9. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 04 October 2018.
All research outputs
#3,854,356
of 23,911,072 outputs
Outputs from Environmental Science and Pollution Research
#633
of 9,883 outputs
Outputs of similar age
#66,044
of 320,132 outputs
Outputs of similar age from Environmental Science and Pollution Research
#16
of 222 outputs
Altmetric has tracked 23,911,072 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 9,883 research outputs from this source. They receive a mean Attention Score of 3.7. This one has done particularly well, scoring higher than 93% of its peers.
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We're also able to compare this research output to 222 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 92% of its contemporaries.