Microbial extracellular polysaccharide-based membrane in polymer electrolyte fuel cells

Annapurna, Balumuri; Meenakshi, S.; Bhat, Santoshkumar D.; Sundaram, Shanthy

doi:10.1016/j.cej.2013.07.042

Cited by 22 publications

(19 citation statements)

References 24 publications

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“…1 The substantial amount of sludge produced needs further processing before its final disposal. 3,4 MFCs are bioelectrochemical systems that harness electrical energy from organic waste, providing an attractive and alternate approach to solve this problem. Hence, major efforts are being devoted to develop alternate bioremediation techniques, which can degrade xenobiotic compounds, produce less sludge, and alleviate the current global energy crisis.…”

Section: Introductionmentioning

confidence: 99%

Studies on the biodegradation of two different azo dyes in bioelectrochemical systems

et al. 2015

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A comparative study on the degradation of acid navy blue R (ANB) and reactive orange 16 (RO 16) was performed in two identical microbial fuel cells (MFCs) under similar conditions and the microbial communities were quantified using a quantitative real time polymerase chain reaction (qPCR). Electricity and methane gas were produced as the end products along with the significant removal of chemical oxygen demand (COD) during the study. The overall performance in terms of degradation rate, COD removal efficiency and biogas production rates were slightly better in the case of the reactor using RO 16 as the carbon source, while electricity production was slightly greater in the reactor treating ANB. A negative standard reduction potential of the reaction mixture indicates the presence of oxidized species in the reactor. Scanning electron microscopy images show the presence of diatoms and rod shaped bacteria in the mixed microbial culture and also confirmed the formation of a biofilm on the anode surface. The qPCR technique was used as a quantitative tool to estimate the abundance of methanogens, sulphate reducing bacteria (SRBs) and electrochemically active Geobacter species. The relative abundance of methanogens was comparatively higher and Geobacter was lower in the case of the reactor treating RO 16. Although the output power was low, this technique can be used for the effective degradation of complex and toxic compounds.

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Section: Introductionmentioning

confidence: 99%

Studies on the biodegradation of two different azo dyes in bioelectrochemical systems

et al. 2015

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“…The membrane electrolyte is a vital component of PEFC and needs to have high proton conductivity and good mechanical, chemical and thermal stability in addition to low cost. There are several important developments in alternative membranes for PEFCs 104 . The direct-methanol fuel cell (DMFC) is an alternative energy source directly generating electricity without fuel combustion.…”

Section: Membrane Fuel Cellsmentioning

confidence: 99%

“…Recently developed polymeric materials based on the blends of natural polymers and man-made ones should be biocompatible while, at the same time, they should have good thermal and mechanical properties for use in membrane technology like proton conducting membrane for batteries 8 , polymer electrolytes, membrane fuel cells 9 , gas separation membranes 10 , ultrafiltration membranes 11 etc. The main natural polymers used in the preparation of membranes are collagen, chitin, chitosan 8 , starch 12 , lactic acid 13 and egg-shell membrane 14 etc.…”

Section: Introductionmentioning

confidence: 99%

Recent Advanced Technologies in the Processing of Hybrid Reinforced Polymers for Applications of Membranes

Dixit

Pal

2016

Polymers and Polymer Composites

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This review presents a comprehensive introduction to recent advances in the field of blends of the natural and synthetic polymers as new material for biodegradable membranes. These materials and several blends have attracted industrial attention because they exhibit improvements in properties which are required in membrane technology. In the current review, the structure, preparation coating method and properties of the blends of natural and man-made polymer are discussed. We focus on the applications of blend materials for membrane technology like fuel cells, membrane electrolytes and ultrafiltration membranes for water treatment. From the literature, it is found that the most common natural polymers: collagen, chitosan, chitin, cellulose, starch and poly(lactic acid) are used as components of blends with man-made polymers. We have also studied the introduction of nano-fibrous and nano-particles to improve the mechanical properties of these membranes.

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“…The different aspects which need focus are: 1) optimization of the type of bacteria; 2) required environment to target the wastewater from different sources (domestic, sewage treatment plant, chemical industry plants, paper industry, etc. ); 3) finding a proper proton exchange membrane (PEM); 4) finding suitable electrode; and 5) optimization of the cell design (such as dual chamber, single chamber, tubular plates, and stack MFC, etc …”

Section: Introductionmentioning

confidence: 99%

Study of Arrowroot Starch‐Based Polymer Electrolytes and Its Application in MFC

et al. 2019

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Microbial fuel cell (MFC), a biochemical‐catalyzed system which generates electricity by oxidizing biodegradable organic matter in the presence of either fermentative bacteria or enzymes, is a growing technology for electricity generation. It is a dual functioning technology which not only generates electricity but also treats wastewater, thereby addressing two major problems of the present world. As the technology is an emerging one, there are numerous challenges to be confronted. One of the vital components of the MFC is the proton exchange membrane (PEM), and it is due to the high cost of this membrane that MFC technology is still running at laboratory scale. In the present study, a starch‐based electrolyte film is used as PEM. Electrochemical behavior exhibited by the starch electrolyte is studied and on using it as PEM in MFC it is found to exhibit power density of ≈16 mW m−2 and the current density of ≈85 mA m−2. One of the main advantages of the material is its cost which is approximately INR ≈940 per square foot compared to INR 70 000 per square foot of Nafion (the most popular membrane).

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Microbial extracellular polysaccharide-based membrane in polymer electrolyte fuel cells

Cited by 22 publications

References 24 publications

Studies on the biodegradation of two different azo dyes in bioelectrochemical systems

Studies on the biodegradation of two different azo dyes in bioelectrochemical systems

Recent Advanced Technologies in the Processing of Hybrid Reinforced Polymers for Applications of Membranes

Study of Arrowroot Starch‐Based Polymer Electrolytes and Its Application in MFC

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