Bioelectricity production and desalination of <i>Halomonas</i> sp. – the preliminary integrity approach

Maheswari, R. Uma; Mohanapriya, C.; Parthasarthy, Vijay; Rajmohan, K. S.; Gopinath, M.

doi:10.1080/17597269.2016.1242687

Cited by 6 publications

(7 citation statements)

References 20 publications

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“…The halophilic bacterium Halomonas sp found in B3 is also of great concern. In fact, Uma Maheswari et al [46] reported for the first time that Halomonas sp, isolated from coastal areas in Tuticorin and capable of growing in 20% of salinity, possess particular electrochemical property in which salt is degraded by the microorganism, and the produced chemical energy was converted into electrical energy. Authors also demonstrated that at the same time salt water gets desalinated and the bacterium produce a maximum voltage up 1.42 V after five days.…”

Section: Bacterial Analysis Of the Anodic Biofilmmentioning

confidence: 99%

Understanding the cumulative effects of salinity, temperature and inoculation size for the design of optimal halothermotolerant bioanodes from hypersaline sediments

Askri¹,

Erable

Neifar³

et al. 2019

Bioelectrochemistry

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Section: Bacterial Analysis Of the Anodic Biofilmmentioning

confidence: 99%

Understanding the cumulative effects of salinity, temperature and inoculation size for the design of optimal halothermotolerant bioanodes from hypersaline sediments

Askri¹,

Erable

Neifar³

et al. 2019

Bioelectrochemistry

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“…Overall bacterial community structure at the genus level isolated from reactors containing TBZ was predominantly composed of Halomonas species (75%). These species were previously cited as electroactive bacteria and able to grow in high levels of salinity and possess particular electrochemical properties (Askri et al, 2019;Uma Maheswari et al, 2019;Liu and Wu, 2021).…”

Section: Frontiers In Energy Researchmentioning

confidence: 99%

Tunisian hypersaline sediments to set up suitable halotolerant microbial bioanodes for electrostimulated biodegradation of thiabendazole

et al. 2022

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This study investigated for the first time the performance of microbial halotolerant bioanodes designed from two Tunisian Hypersaline Sediments (THS) for simultaneous electrostimulated biodegradation of synthetic fruit packaging wastewater containing thiabendazole (TBZ), and recovery of an anodic current signal. Halotolerant bioanodes formation has been conducted on 6 cm2 carbon felt electrodes polarized at −0.1Vvs Saturated Calomel Electrode (SCE), inoculated with 80% (v:v) of synthetic wastewater containing 50 ppm of irradiated or not irradiated TBZ and 20% (v:v) of THS for a period of 7 days. Microbial bioanodes, and the corresponding anolytes, i.e., synthetic wastewater, were studied comparatively by electrochemical, microscopic, spectroscopic, molecular and microbial ecology tools. Despite the low maximum current densities recorded in the 50 ppm TBZ runs (3.66 mA/m2), more than 80% of the TBZ was degraded when non-irradiated TBZ (nTBZ) was used as the sole carbon energy by the microorganisms. Nevertheless, the degradation in the presence of irradiated TBZ (iTBZ) was greatly reduced by increasing the irradiation dose with maximum current density of 0.95 mA/m2 and a degradation rate less than 50% of iTBZ. In addition, chemical changes were observed in TBZ as a result of gamma irradiation and bioelectrochemical degradation. FT-IR and UV-Vis techniques confirmed the degradation of TBZ structural bonds producing novel functional groups. Culture-dependent approach and 16S ribosomal RNA sequencing demonstrated that bacterial community of halotolerant bioanodes formed with nTBZ were dominated by Proteobacteria (75%) and Firmicutes (25%). At species level, enrichment of Halomonas smyrnensis, Halomonas halophila, Halomonas salina, Halomonasor ganivorans and Halomonas koreensis on carbon felt electrodes were correlated with maximal current production and nTBZ degradation. As a result, THS halotolerant bacteria, and specifically those from Chott El Djerid (CJ) site certainly have well established application for the electrostimulated microbial biodegradation of fungicide in the real fruit and vegetable processing industries.

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“…[19][20][21] At present, most literature has reported CE ranging from 5% to 59% for wastewater having complex substrates. [19][20][21] At present, most literature has reported CE ranging from 5% to 59% for wastewater having complex substrates.…”

Section: Power Generationmentioning

confidence: 99%

“…Coulombic efficiency for the existing system was evaluated to be 32%, which as studies have suggested is higher for Nafion membrane-based MFCs compared with those obtained from membrane-less MFCs. [19][20][21] At present, most literature has reported CE ranging from 5% to 59% for wastewater having complex substrates. [22][23][24] Improvements for accessibility of further insoluble substrates thereby leading to better organic matter degradation and more stable anodic biofilms will be the key for achieving higher CEs.…”

Section: Power Generationmentioning

confidence: 99%

Bioelectricity generation from sewage and wastewater treatment using two-chambered microbial fuel cell

et al. 2018

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Summary In this study, sewage was simultaneously treated and used to produce electricity using a two‐chambered microbial fuel cell (MFC) with carbon cloth electrodes having platinum coating on the cathode. Porous carbon electrodes are found to be the more suitable for MFCs as the power generation value is high when compared with nonporous surfaces and has a significant impact on the development of stable biofilms on the anode. Wastewater having an initial chemical oxygen demand (COD) of 830 ± 20 mg/L had a removal efficiency from the MFC of around 78%. The initial pH of sewage in the range of 7.69 ± 0.2 saw a shift towards neutral (around 7.4) and biochemical oxygen demand ranging from 300 ± 20 mg/L in the system decreased up to 175 ± 15 mg/L. The cell open circuit voltage peaked at 800 mV. Current and power density was calculated using an external resistance (of 250 Ω) followed by normalizing to the anode surface area. This bioelectricity generation is attributed to the decomposition of the organic matter and is reported to peak at 0.54 mA/m2 and 204 ± 0.38 mW/m2, respectively. Power generation has faster COD removal rates with external resistors compared with open circuit analysis, and MFCs can be effective to support the wastewater treatment infrastructure while at the same time generate electrical power as a value added product.

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Bioelectricity production and desalination of Halomonas sp. – the preliminary integrity approach

Cited by 6 publications

References 20 publications

Understanding the cumulative effects of salinity, temperature and inoculation size for the design of optimal halothermotolerant bioanodes from hypersaline sediments

Understanding the cumulative effects of salinity, temperature and inoculation size for the design of optimal halothermotolerant bioanodes from hypersaline sediments

Tunisian hypersaline sediments to set up suitable halotolerant microbial bioanodes for electrostimulated biodegradation of thiabendazole

Bioelectricity generation from sewage and wastewater treatment using two-chambered microbial fuel cell

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