scholarly journals Recent Trends and Prospects of Microbial Fuel Cell Technology for Energy Positive Wastewater Treatment Plants Treating Organic Waste Resources

2021 ◽  
Vol 43 (10) ◽  
pp. 623-653
Author(s):  
Sunghoon Son ◽  
Youngjin Kim ◽  
Myeong Woon Kim ◽  
Sokhee P. Jung

Microbial fuel cell (MFC) technology is receiving a lot of attention recently as a promising technology for generating electricity by treating organic waste resources. Over the past 20 years, the MFC technology has made rapid progress: various research on system architectures, electrochemistry, materials, and microbiology has been conducted for developing practical ideas and fundamental principles. Recently, a lot of research on scaled-up systems for practical application is being conducted in the MFC field. In this review, materials, electrochemistry, system development and scale-up systems of MFCs studied so far are reviewed, and future prospects and directions of MFC technology are presented.

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 985
Author(s):  
Wei Han Tan ◽  
Siewhui Chong ◽  
Hsu-Wei Fang ◽  
Kuan-Lun Pan ◽  
Mardawani Mohamad ◽  
...  

Microbial fuel cell (MFC) technology has attracted a great amount of attention due to its potential for organic and inorganic waste treatment concomitant with power generation. It is thus seen as a clean energy alternative. Modifications and innovations have been conducted on standalone and hybrid/coupled MFC systems to improve the power output to meet the end goal, namely, commercialization and implementation into existing wastewater treatment plants. As the energy generated is inversely proportional to the size of the reactor, the stacking method has been proven to boost the power output from MFC. In recent years, stacked or scale-up MFCs have also been used as a power source to provide off-grid energy, as well as for in situ assessments. These scale-up studies, however, encountered various challenges, such as cell voltage reversal. This review paper explores recent scale-up studies, identifies trends and challenges, and provides a framework for current and future research.


2013 ◽  
Vol 67 (11) ◽  
pp. 2568-2575 ◽  
Author(s):  
I. S. Michie ◽  
J. R. Kim ◽  
R. M. Dinsdale ◽  
A. J. Guwy ◽  
G. C. Premier

For the successful scale-up of microbial fuel cell (MFC) systems, enrichment strategies are required that not only maximise reactor performance but also allow anodic biofilms to be robust to environmental change. Cluster analysis of Denaturing Gradient Gel Electrophoresis community fingerprints showed that anodic biofilms were enriched according to substrate type and temperature. Acetate produced the highest power density of 7.2 W m−3 and butyrate the lowest at 0.29 W m−3, but it was also found that the trophic conditions used to acclimate the electrogenic biofilms also determined the MFC response to different substrate types, with both acetate and butyrate substrates recording power densities of 1.07 and 1.0 W m−3 respectively in a sucrose enriched reactor. When temperature perturbations were introduced to investigate the stability of the different substrate acclimated electrogenic biofilms, the 20 °C acclimated acetate reactor was unaffected by 10 °C operation but all reactors acclimated at 35 °C were adversely affected. When the operating temperature was raised back to 35 °C both the acetate and butyrate reactors recovered electrogenic activity but the sucrose reactor did not. It is thought that this was due to the more complex syntropic interactions that are required to occur when metabolising more complex substrate types.


2022 ◽  
Vol 520 ◽  
pp. 230875
Author(s):  
Xavier Alexis Walter ◽  
Elena Madrid ◽  
Iwona Gajda ◽  
John Greenman ◽  
Ioannis Ieropoulos

2019 ◽  
Vol 79 (4) ◽  
pp. 718-730 ◽  
Author(s):  
Priya Sharma ◽  
Srikanth Mutnuri

Abstract Presence of urine in municipal wastewater is a major problem faced by wastewater treatment plants. The adverse effects are noticeable as crystallization in equipment and pipelines due to high concentration of nitrogen and phosphorus. Therefore, improved technologies are required that can treat urine separately at the source of their origin and then discharge it in the main wastewater stream. In this study, the performance of the microbial fuel cell (MFC) was evaluated with mixed consortia and isolated pure cultures (Firmicutes and Proteobacter species) from biofilm for electricity generation and nutrient recovery. Microbes utilize less than 10% of total phosphorus for their growth, while 90% is recovered as struvite. The amount of struvite recovered was similar for pure and mixed culture (12 ± 5 g/L). The microbial characterization also shows that not all the biofilm-forming bacterial isolates are very much efficient in power generation and, hence, they can be further exploited to study their individual role in operating MFC. The different organic loading rates experiment shows that the performance of MFC in terms of power generation is the same for undiluted and five times diluted urine while the recovery of nutrients is better with undiluted urine, implying its direct use of urine in operating fuel cell.


2018 ◽  
Vol 25 (24) ◽  
pp. 23631-23644 ◽  
Author(s):  
Wenbin Liu ◽  
Hui Jia ◽  
Jie Wang ◽  
Hongwei Zhang ◽  
Changchun Xin ◽  
...  

2015 ◽  
Vol 7 (4) ◽  
pp. 043101 ◽  
Author(s):  
N. Samsudeen ◽  
Amit Sharma ◽  
T. K. Radhakrishnan ◽  
Manickam Matheswaran

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