Effects of organic loading rate and operating temperature on power generation from cassava wastewater by a single-chamber microbial fuel cell

2013 ◽  
Vol 52 (4-6) ◽  
pp. 937-946 ◽  
Author(s):  
Nattakarn Prasertsung ◽  
Chavalit Ratanatamskul
2013 ◽  
Vol 2 (2) ◽  
pp. 131-135
Author(s):  
Z Yavari ◽  
H Izanloo ◽  
K Naddafi ◽  
H.R Tashauoei ◽  
M Khazaei

Renewable energy will have an important role as a resource of energy in the future. Microbial fuel cell (MFC) is a promising method to obtain electricity from organic matter andwastewater treatment simultaneously. In a pilot study, use of microbial fuel cell for wastewater treatment and electricity generation investigated. The bacteria of ruminant used as inoculums. Synthetic wastewater used at different organic loading rate. Hydraulic retention time was aneffective factor in removal of soluble COD and more than 49% removed. Optimized HRT to achieve the maximum removal efficiency and sustainable operation could be regarded 1.5 and 2.5 hours. Columbic efficiency (CE) affected by organic loading rate (OLR) and by increasing OLR, CE reduced from 71% to 8%. Maximum voltage was 700mV. Since the microbial fuel cell reactor considered as an anaerobic process, it may be an appropriate alternative for wastewater treatment


2019 ◽  
Vol 281 ◽  
pp. 367-373 ◽  
Author(s):  
Yuanyao Ye ◽  
Huu Hao Ngo ◽  
Wenshan Guo ◽  
Soon Woong Chang ◽  
Dinh Duc Nguyen ◽  
...  

2008 ◽  
Vol 57 (7) ◽  
pp. 1017-1021 ◽  
Author(s):  
J. N. Zhang ◽  
Q. L. Zhao ◽  
S. J. You ◽  
J. Q. Jiang ◽  
N. Q. Ren

In this study, a novel microbial fuel cell, i.e. upflow air-cathode membrane-free microbial fuel cell (UAMMFC) was reported and its performance in electricity generation from original leachate was examined. The experimental results demonstrated that the UAMMFC could continuously generate electricity from leachate (0.3V; REX=150 Ω) for an operational period of time (50 h). The maximum volumetric power reached 12.8 W/m3 at current density of 41 A/m3 (93 Ω). NH4+-N elimination from the leachate was shown to be a consequence of electrochemistry-independent oxidation occurred in the MFC. Increasing organic loading rate from 0.65 to 5.2 kgCOD/m3 d resulted in a decrease of overall Coulombic efficiency (CE) from 14.4% to 1.2%. The low CE obtained here should be attributed to severe oxygen diffusion from the open-to-air cathode.


2013 ◽  
Vol 160 (10) ◽  
pp. H720-H726 ◽  
Author(s):  
Carlo Santoro ◽  
Sofia Babanova ◽  
Plamen Atanassov ◽  
Baikun Li ◽  
Ioannis Ieropoulos ◽  
...  

2015 ◽  
Vol 1113 ◽  
pp. 823-827 ◽  
Author(s):  
Nik Mahmood Nik Azmi ◽  
Nazlee Faisal Ghazali ◽  
Ahmad Fikri ◽  
Md Abbas Ali

A membrane-less and mediator-less system was designed and tested with wastewater sample as fuel to generate electricity. Microorganisms were first isolated from the wastewater sample to pure culture and were used as the ‘machinery’ that converts wastewater into energy. The wastewater samples were treated either by sterilization or non-sterilization methods. These tests were run using a modified air-cathode single chamber microbial fuel cell (MFC). By sterilizing the wastewater, the calculated power density was much lower compared to non-sterilized wastewater indicating a significant role of microbial activity in the SCMFC system and substrate availability. Furthermore, mixed culture was observed to give larger power density compared to an individual microbe (18.42 ± 5.84 mW/m2 for mixed culture and 8.82 ± 4.56 mW/m2 to 9.46 ± 4.87 mW/m2 for individual microbe, Bukholderi capecia and Acidovorax sp. respectively) to prove that larger power value could be achieved with a mixed microbial system. In addition, the system proved to remove 68.57% of chemical oxygen demand (COD) of the wastewater sample tested. In conclusion, the designed SCMFC has been proven capable of power generation and wastewater treatment comparable to other SCMFCs to date.


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