scholarly journals Removal of Odors from Swine Wastewater by Using Microbial Fuel Cells

2008 ◽  
Vol 74 (8) ◽  
pp. 2540-2543 ◽  
Author(s):  
Jung Rae Kim ◽  
Jerzy Dec ◽  
Mary Ann Bruns ◽  
Bruce E. Logan

ABSTRACT A single-chamber microbial fuel cell (MFC) was used to reduce 10 chemicals associated with odors by 99.76% (from 422 ± 23 μg/ml) and three volatile organic acids (acetate, butyrate, and propionate) by >99%. The MFC produced a maximum of 228 mW/m2 and removed 84% of the organic matter in 260 h. MFCs were therefore effective at both treatment and electricity generation.

Author(s):  
A. J. Southward ◽  
Eve C. Southward ◽  
T. Brattegard ◽  
T. Bakke

Adult and larval stages of Siboglinum fiordicum, collected from 32 to 35 m depth, accumulate measurable quantities of amino acids and glucose from low concentrations. The amino acids are absorbed against a considerable gradient. The glucose and the amino acids are metabolized in the tissues and substantial amounts are respired to give carbon dioxide or volatile organic acids. Under the experimental conditions almost all the metabolism follows aerobic pathways.


2013 ◽  
Vol 71 ◽  
pp. 57-61 ◽  
Author(s):  
Yan-Rong He ◽  
Xiang Xiao ◽  
Wen-Wei Li ◽  
Pei-Jie Cai ◽  
Shi-Jie Yuan ◽  
...  

2013 ◽  
Vol 291-294 ◽  
pp. 602-605 ◽  
Author(s):  
Liang Liu ◽  
Wen Yi Zhang

In this study we investigated the use of a microbial fuel cell (MFC) to abioticlly cathodic decolorization of a model azo dye, Methyl Orange (MO). Experimental results showed that electricity could be continuously generated the MO-fed MFC and MO was successfully decolorized in the cathode. The decolorization rate was highly dependent on the catholyte pH. When pH was varied from 3.0 to 9.0, the k value in relation to MO degradation decreased from 0.298 to 0.016 μmol min-1, and the maximum power density decreased from 34.77 to 1.51 mW m-2. Sulfanilic acid and N,N-dimethyl-p-phenylenediamine were identified as the decolorization products of MO by HPLC-MS.


2015 ◽  
Vol 16 ◽  
pp. 26-33 ◽  
Author(s):  
Chimezie Ogugbue ◽  
Edegbai Ebode ◽  
Solomon Leera

2020 ◽  
Vol 8 (6) ◽  
pp. 3345-3449

Microbial fuel cells play a key role in generating wealth out of waste as they serve the binary purpose of electricity production along with waste treatment. A variety of organic substances can be used as substrates in microbial fuel cells. In this work, three substrates naturally obtained as dairy farm waste, viz. cattle manure, yogurt waste, and cow urine along with their various combinations were tested for power generation in a microbial fuel cell. All three substrates are a promising source of electrogenic bacteria. The potential use of aluminium as electrode material for electricity generation in microbial fuel cell was also investigated. The output circuit voltage was recorded at regular time intervals over a period of around 15-25 days. Maximum output voltage of 1.170 V was recorded for cattle manure as substrate on graphite electrode with a stabilization period of 16 days. The combination of cattle manure and yogurt waste on aluminium electrode gave peak output voltage of 1.122 V with a stabilization period of 10 days. The addition of cow urine did not show any significant increase in the output.


2014 ◽  
Vol 70 (3) ◽  
pp. 444-449 ◽  
Author(s):  
Yuejia Chen ◽  
Junqiu Jiang ◽  
Qingliang Zhao

The effect of sludge freezing/thawing on its disintegration and subsequent use as substrate in a microbial fuel cell (MFC) was investigated to enhance organic matter degradation and electricity generation. Experimental results indicated that long freezing time (more than 48 h) was effective in disintegrating the sludge collected from the secondary sedimentation tank of a wastewater treatment plant. Freezing/thawing pretreatment could enhance the degradation of total chemical oxygen demand (COD) and electricity generation in MFC due to the higher concentration of soluble COD and ammonium nitrogen available in the pretreated sludge. The removal efficiency of total COD was increased from 25.3% (raw sludge as substrate) to 66.2% and the maximum power output was increased from 8.9 (raw sludge as substrate) to 10.2 W/m3 in MFC.


2018 ◽  
Vol 7 (4.5) ◽  
pp. 534 ◽  
Author(s):  
Borker Mohnish ◽  
Suchithra T.V

The need for a sustainable source of energy has catered engineers to discover and develop a biological battery known as Plant Microbial fuel cell. This biological battery operates with the help of electrochemically active bacteria in presence of CO2, sunlight and water. This technique is gaining importance in the field of bioelectricity as it produces clean in-situ energy from living plants without the need to harvest the plant species. Research on these cells have led to the development of various models. One such plant species Setaria faberi was tested for its compatibility in sediment plant microbial fuel cell. Power density of 4.6mW/m2 was obtained when it was tested with cocopeat as a hydroponic media. This paper highlights the suitability of S. faberi in producing sustainable bioelectricity with a hydroponic media.  


2017 ◽  
Vol 24 (6) ◽  
pp. 5868-5876 ◽  
Author(s):  
Nancy Karina González-Gamboa ◽  
David Sergio Valdés-Lozano ◽  
Luis Felipe Barahona-Pérez ◽  
Liliana Alzate-Gaviria ◽  
Jorge Arturo Domínguez-Maldonado

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