scholarly journals “Bacterial consortium from hydrothermal vent sediments presents electrogenic activity achieved under sulfate reducing conditions in a microbial fuel cell”

2020 ◽  
Vol 18 (2) ◽  
pp. 1189-1205
Author(s):  
Margarita Isabel Pérez-Díaz ◽  
Paola Zárate-Segura ◽  
Luis Antonio Bermeo-Fernández ◽  
Khemlal Nirmalkar ◽  
Fernando Bastida-González ◽  
...  
2019 ◽  

<p>The main aim of this study is to investigate the simultaneous azo dye removal and bioelectricity production at sulfate reducing conditions in continuously-fed dual-chamber microbial fuel cell (MFC). Initially, optimization of sulfate reduction was performed at different sulfate concentrations (100-900 mg/L) and the constant COD of 1000 mg/L, corresponding to COD/sulfate ratio of 1.11-10, and varying HRT of 12-48h. Optimum COD/sulfate ratio and HRT was found 1.66 and 36h, respectively, corresponding to 96% COD removal, 44% sulfate removal and yielded about 24 W/m2 power density. Further, MFC was fed with azo dye containing (50-1000 mg/L) simulated wastewater to evaluate dye removal performance of sulfate reducing bacteria. Addition of azo dye slightly enhanced the power production to 26 W/m2, the highest value obtained during our study, compared to azo dye lacking study periods. Sulfate and COD removals were adversely affected at azo dye concentrations over 300 mg/L and 150 mg/L, respectively. Additionally, color removal performance of MFC was excellent however, chemical azo dye reduction out-competed with enzymatic reduction at high azo dye levels (&gt;500 mg/L) leading to a poor sulfate (&lt;15%) and COD (&lt;45%) removal and recovery of azo dye reduction efficiency to 91%.</p>


2008 ◽  
Vol 22 (1) ◽  
pp. 164-168 ◽  
Author(s):  
Phuc Thi Ha ◽  
Beomseok Tae ◽  
In Seop Chang

2015 ◽  
Vol 17 (10) ◽  
pp. 1806-1815 ◽  
Author(s):  
Phuong Hoang Nguyen Tran ◽  
Tha Thanh Thi Luong ◽  
Thuy Thu Thi Nguyen ◽  
Huy Quang Nguyen ◽  
Hop Van Duong ◽  
...  

A lithotrophic iron-oxidizing microbial fuel cell containing an enriched iron-oxidizing bacterial consortium has the potential to be used as a biosensor for detecting iron in water samples.


2016 ◽  
Vol 210 ◽  
pp. 61-67 ◽  
Author(s):  
Numfon Eaktasang ◽  
Christina S. Kang ◽  
Heejun Lim ◽  
Oh Sung Kwean ◽  
Suyeon Cho ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document