Microbial fuel cells for dye decolorization

Ilamathi, R.; Jayapriya, J.

doi:10.1007/s10311-017-0669-4

Cited by 58 publications

(20 citation statements)

References 61 publications

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“…Biowaste‐based carbon coating on anode improves hydrophilicity, which subsequently enriches the bacterial attachment and electricity output. In dye decolorization using MFC, the colonized bacteria on anode material supports bacterial interaction with dye and electron transfer, which enhances decolorization and electricity generation 22,26 . Thus, FRL carbon was used for coating the anode material, and the morphology of coated electrode has confirmed the distribution of FRL carbon and microbial colonization on coated electrode (Figure 3a,b).…”

Section: Resultsmentioning

confidence: 90%

“…The choice of microbes and electrodes are the vital factors in enhancing MFC performance 20,21 . The high stability, robustness of modifying metabolism of microbes under the available nutrient source, stress resistance, and higher current densities are the advantages of mixed cultures usage in MFC‐assisted dye degradation 22 . However, Kiely et al 23 reported that higher current density was achieved using pure culture Shewanella (MR‐1) compared over the mixed culture.…”

Section: Introductionmentioning

confidence: 99%

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Microbial fuel cell‐assisted Congo red dye decolorization using biowaste‐derived anode material

Prajapati

Yelamarthi

2020

Asia-Pacific J Chem Eng

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Microbial fuel cell (MFC) is a promising technology for wastewater treatment coupled with electricity generation. Biowaste-derived electrodes are used to improve the surface area, roughness, and hydrophilicity, which play pivotal role in the enhanced biofilm formation. In the present study, Ficus religiosa leaves (FRL) biowaste was used to develop the bioelectrode. In this study, Congo red (CR) dye decolorization was performed using MFC, wherein the effect of dye decolorization with respect to dye concentration, glucose concentration, and hydraulic retention time (HRT) was studied. The surface roughness and distribution of carbon powder on carbon cloth were confirmed using scanning electron microscope (SEM) analysis. Also, Bacillus subtilis adhesion and chain-like structure formation on the electrode confirmed the biofilm formation on the electrode. The polarization curve was performed to assess the MFC performance. The maximum power density of 70.50 mW/m 2 and current density of 251.79 mA/m 2 at 2,224 Ω was achieved. The maximum decolorization of 80.95 ± 2.08% and COD reduction of 73.96 ± 1.76% were obtained, respectively, after complete treatment of MFC for 54 h. UV-visible spectrometry analysis of dye contained samples during MFC treatment at various time intervals was confirmed the cleavage of azo bond (N N), and the corresponding peak intensity variation was noticed at 490 nm.

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Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Microbial fuel cell‐assisted Congo red dye decolorization using biowaste‐derived anode material

Prajapati

Yelamarthi

2020

Asia-Pacific J Chem Eng

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“…Among all factors affecting the MFC performance, the choice of electrode materials is highly essential since the electrode cost is a key factor for the implementation of the MFC technology at a large scale [7]. Besides high conductivity and corrosion resistance, the anodic materials have to meet additional requirements such as biocompatibility towards the explored bacteria and enhanced active surface area appropriate for biofilm formation.…”

Section: Introductionmentioning

confidence: 99%

Graphite–Metal Oxide Composites as Potential Anodic Catalysts for Microbial Fuel Cells

et al. 2020

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In this study, graphite–metal oxide (Gr–MO) composites were produced and explored as potential anodic catalysts for microbial fuel cells. Fe2O3, Fe3O4, or Mn3O4 were used as a catalyst precursor. The morphology and structure of the fabricated materials were analyzed by scanning electron microscopy and X-ray diffraction, respectively, and their corrosion resistance was examined by linear voltammetry. The manufactured Gr–MO electrodes were tested at applied constant potential +0.2 V (vs. Ag/AgCl) in the presence of pure culture Pseudomonas putida 1046 used as a model biocatalyst. The obtained data showed that the applied poising resulted in a generation of anodic currents, which gradually increased during the long-term experiments, indicating a formation of electroactive biofilms on the electrode surfaces. All composite electrodes exhibited higher electrocatalytic activity compared to the non-modified graphite. The highest current density (ca. 100 mA.m−2), exceeding over eight-fold that with graphite, was achieved with Gr–Mn3O4. The additional analyses performed by cyclic voltammetry and electrochemical impedance spectroscopy supported the changes in the electrochemical activity and revealed substantial differences in the mechanism of current generation processes with the use of different catalysts.

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“…For the removal of contaminants, such as dyes, nanosized adsorbents, nanocomposite membranes and photodegradation techniques have been used (Shukla and Oturan 2015;Kolangare et al 2018;Mudhoo et al 2018). Several studies have been considering microbial fuel cells (MFCs) technology as a promising approach for the removal of pollutants coupled with the generation of electricity (Ilamathi and Jayapriya 2018;Ottoni et al 2019;Wang et al 2018). According to Ilamathi and Jayapriya (2018), around 50-90% less solids will be disposed using this system.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been considering microbial fuel cells (MFCs) technology as a promising approach for the removal of pollutants coupled with the generation of electricity (Ilamathi and Jayapriya 2018;Ottoni et al 2019;Wang et al 2018). According to Ilamathi and Jayapriya (2018), around 50-90% less solids will be disposed using this system.…”

Section: Introductionmentioning

confidence: 99%

Microbial fuel cell-induced production of fungal laccase to degrade the anthraquinone dye Remazol Brilliant Blue R

et al. 2019

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The anthraquinone dye Remazol Brilliant Blue R is largely used in the textile industry. However, its removal from wastewaters is costly and complex. Many methods have been tested to solve this ecological problem, but there is still a need for efficient methods. We propose here an alternative use of a two-chambered microbial fuel cell (MFC), fuelled with domestic wastewater in the anodic chamber, to degrade a simulated textile dye effluent made of Remazol Brilliant Blue R inoculated with an immobilised fungal strain, Pleurotus ostreatus URM 4809, as a laccase producer, in the cathodic chamber. The MFC showed continuous synthesis of laccase in the cathodic chamber, which, in turn, promoted the rapid decolourisation, of more than 86% of the textile dye effluent. The yield was further increased by the addition of glycerol. Electrochemical monitoring also indicated an increase in power density and current density. After 20 days of MFC operation, 62.1% of organic matter was removed in the anodic compartment, thus leaving the effluent with a much lower toxicity.

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Microbial fuel cells for dye decolorization

Cited by 58 publications

References 61 publications

Microbial fuel cell‐assisted Congo red dye decolorization using biowaste‐derived anode material

Microbial fuel cell‐assisted Congo red dye decolorization using biowaste‐derived anode material

Graphite–Metal Oxide Composites as Potential Anodic Catalysts for Microbial Fuel Cells

Microbial fuel cell-induced production of fungal laccase to degrade the anthraquinone dye Remazol Brilliant Blue R

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