Treatment of dairy wastewater and performance comparison of three different electrodes in microbial fuel cell system

Vidhyeswari, D.; Bhuvaneshwari, S.

doi:10.5004/dwt.2018.22969

Cited by 4 publications

(3 citation statements)

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“…These structural abilities are related to the electron-transfer efficiency and can be increased by increasing the specific surface area to enhance biofilm development. Furthermore, the microbe's metabolism rate can also be amended by anodic constituents that provide an anaerobic terminal electron acceptor for breaking down the organic compounds in dairy wastewater [135]. In a recent investigation, a batch-fed dual-compartment MFC was studied using three diverse anodes (a graphite rod, graphite felt, and carbon cloth) and that employed dairy effluent as feedstock with an initial COD of 1357 mg/L.…”

Section: Electrode Modificationsmentioning

confidence: 99%

Dairy Wastewater as a Potential Feedstock for Valuable Production with Concurrent Wastewater Treatment through Microbial Electrochemical Technologies

2022

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A milk-processing plant was drafted as a distinctive staple industry amid the diverse field of industries. Dairy products such as yogurt, cheese, milk powder, etc., consume a huge amount of water not only for product processing, but also for sanitary purposes and for washing dairy-based industrial gear. Henceforth, the wastewater released after the above-mentioned operations comprises a greater concentration of nutrients, chemical oxygen demand, biochemical oxygen demand, total suspended solids, and organic and inorganic contents that can pose severe ecological issues if not managed effectively. The well-known processes such as coagulation–flocculation, membrane technologies, electrocoagulation, and other biological processes such as use of a sequencing batch reactor, upflow sludge anaerobic blanket reactor, etc., that are exploited for the treatment of dairy effluent are extremely energy-exhaustive and acquire huge costs in terms of fabrication and maintenance. In addition, these processes are not competent in totally removing various contaminants that exist in dairy effluent. Accordingly, to decrease the energy need, microbial electrochemical technologies (METs) can be effectively employed, thereby also compensating the purification charges by converting the chemical energy present in impurities into bioelectricity and value-added products. Based on this, the current review article illuminates the application of diverse METs as a suitable substitute for traditional technology for treating dairy wastewater. Additionally, several hindrances on the way to real-world application and techno-economic assessment of revolutionary METs are also deliberated.

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Section: Electrode Modificationsmentioning

confidence: 99%

Dairy Wastewater as a Potential Feedstock for Valuable Production with Concurrent Wastewater Treatment through Microbial Electrochemical Technologies

2022

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“…The slow mixing of around 150 rpm was provided using magnetic stirrer (REMI 1MLH). An external load of 100 Ω resistor was applied to form a closed circuit (Vidhyeswari & Bhuvaneshwari 2018). The MFC set up is operated at room temperature.…”

Section: Mfc Construction and Operationmentioning

confidence: 99%

“…Effectiveness of the microbial fuel cells in power generation and wastewater treatment is dependent on various parameters such as electrodes, microbes and proton exchange membrane. Proton exchange membrane is of greater importance in microbial fuel cell compared to other parameters (Vidhyeswari & Bhuvaneshwari 2018). India is the largest producer and consumer of milk and milk products.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of power generation and treatment efficiency of dairy wastewater in microbial fuel cell using TiO2 – SPEEK as proton exchange membrane

Vidhyeswari

Surendhar²,

Bhuvaneshwari

2021

Water Science and Technology

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The aim of this study is to synthesis SPEEK composite proton exchange membrane with the addition of TiO2 nanofillers for microbial fuel cell application. SPEEK composite membrane with varying weight percentage of TiO2 (2.5, 5, 7.5 and 10%) was prepared to study the effect of TiO2 concentration on membrane performance. Synthesized composite membranes were subjected to various characterization studies such as FT-IR, XRD, Raman spectroscopy; TGA, UTM and SEM. Physico-chemical properties of membrane such as water uptake capacity, ion exchange capacity and thickness were also analyzed. 5% TiO2 – SPEEK composite membrane exhibited the higher water uptake capacity value and Ion exchange capacity value of 31% and 1.71 meq/g respectively. Performance of the MFC system with TiO2 – SPEEK membranes were evaluated and compared with the pristine SPEEK and Nafion membrane. 5% TiO2 – SPEEK membrane produced the higher power density (1.22 W/m2) and voltage (0.635 V) than the other membranes investigated. Efficacy of MFC in wastewater treatment was evaluated based on the chemical oxygen demand (COD), total organic carbon content and turbidity. Biofilm growth over the surface of the electrodes was also analyzed using scanning electron microscopy.

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Enhanced performance of novel carbon nanotubes - sulfonated poly ether ether ketone (speek) composite proton exchange membrane in mfc application

Vidhyeswari

Surendhar²,

Bhuvaneshwari

2022

Chemosphere

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Treatment of dairy wastewater and performance comparison of three different electrodes in microbial fuel cell system

Cited by 4 publications

References 0 publications

Dairy Wastewater as a Potential Feedstock for Valuable Production with Concurrent Wastewater Treatment through Microbial Electrochemical Technologies

Dairy Wastewater as a Potential Feedstock for Valuable Production with Concurrent Wastewater Treatment through Microbial Electrochemical Technologies

Evaluation of power generation and treatment efficiency of dairy wastewater in microbial fuel cell using TiO2 – SPEEK as proton exchange membrane

Enhanced performance of novel carbon nanotubes - sulfonated poly ether ether ketone (speek) composite proton exchange membrane in mfc application

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