Electricity generation using chocolate industry wastewater and its treatment in activated sludge based microbial fuel cell and analysis of developed microbial community in the anode chamber

2009 ◽  
Vol 100 (21) ◽  
pp. 5132-5139 ◽  
Author(s):  
Sunil A. Patil ◽  
Venkata Prasad Surakasi ◽  
Sandeep Koul ◽  
Shrikant Ijmulwar ◽  
Amar Vivek ◽  
...  
2010 ◽  
Vol 113-116 ◽  
pp. 286-290 ◽  
Author(s):  
Guang Zhao ◽  
Li Wei ◽  
Fang Ma ◽  
Hong Chua ◽  
Zhe Wang

The microbial fuel cell (MFC) constructed by a modified Continuous Stirred Tank Reactor (CSTR) which was used as acidification-phase of two-phase anaerobic digestion system. The experiment was operated as batch mode at mesophilic condition (35°C) to evaluate continue voltage output using cattle dung as substrate in hydrolysis-acidification process. The results illustrated that electricity generation increased noticeably to 300mV after 3 days operation, reached 430mV after 20 days and stabilized electricity generation from 420mV to 470mV in the following 70 days. The pH decreased from 7.15 to 6.65 after 15 days operation and maintained stability from 6.4 to 6.8. The main components of VFA in anode chamber were acetic, propionic and butiric acids. The dominating VFA was acetic acid that predominated untile day 50 and the maximum propionic acid concentration was 15% of total VFA.


Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2231 ◽  
Author(s):  
Hongjun Ni ◽  
Kaixuan Wang ◽  
Shuaishuai Lv ◽  
Xingxing Wang ◽  
Lu Zhuo ◽  
...  

The variation of substrate concentration in anode chamber directly affects the power generation efficiency and decontamination performance of microbial fuel cell (MFC). In this study, three concentrations of swine wastewater with 800 mg/L, 1600 mg/L and 2500 mg/L were selected as substrates, and the performance of MFC and response characteristics of anode microbial community were investigated. The results show that the concentration of a selected substrate is positively correlated with the output voltage of MFC and chemical oxygen demand (COD) removal rate. The microbial community diversity in the anode chamber and the performance of battery can be significantly affected when concentration changes in different ways, which helps to selectively cultivate the adaptable dominant bacteria to enhance the stability and decontamination performance of MFC. The community structure of anodic biofilm is mainly composed of Proteobacteria, Bacteroidetes, Firmicutes, Chloroflexi and Spirochaetae. These findings are meaningful to improve the treatment effects of swine wastewater and can help to find out the mechanism of varying concentration that influences the production of microorganisms in MFC.


2013 ◽  
Vol 145 ◽  
pp. 90-96 ◽  
Author(s):  
Mohd Zulkhairi Mohd Yusoff ◽  
Anyi Hu ◽  
Cuijie Feng ◽  
Toshinari Maeda ◽  
Yoshihito Shirai ◽  
...  

2010 ◽  
Vol 176 (1-3) ◽  
pp. 759-764 ◽  
Author(s):  
Yong Luo ◽  
Renduo Zhang ◽  
Guangli Liu ◽  
Jie Li ◽  
Mingchen Li ◽  
...  

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