Development, performance evaluation, and kinetic studies of microbial fuel cell based auto dripping bioelectrochemical reactor (AutoDriBER) for urine treatment

Mehrotra, Smriti; Singh, Neeraj; Vempaty, Anusha; Mathuriya, Abhilasha Singh

doi:10.1080/09593330.2022.2130106

Cited by 1 publication

(1 citation statement)

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“…The polarization curve was obtained by varying external resistance (10 kΩ to 10Ω) and measuring the corresponding voltage drop (Mehrotra et al 2022). The power and current produced were calculated according to Ohm's law and were normalized to the surface area of the anode (Logan et al 2006b).…”

Section: Mfc Test and Operationmentioning

confidence: 99%

Electrodeposited polyaniline-carbon felt anode promotes electroactive biofilm for the improved energy recovery in microbial fuel cells using phenol containing wastewater

Bhandari,

Pandit,

Pandit

et al. 2024

Preprint

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In the present study, Polyaniline (PANI)/ Carbon Felt (CF) composite electrodes were developed to be used as an anode in a Microbial Fuel Cell (MFC) for the enrichment of specific electroactive organisms on the anode. Comparative analysis of two approaches of Phenol degradation namely adsorption & biodegradation and for simultaneous generation of bio-electricity. Sulfuric acid-doped PANI was electrochemically synthesized in aqueous medium and deposited in-situ on the carbon felt anode followed by its characterization using SEM, XRD, and CV. To use these in MFC, different concentrations of PANI ranging from 0.25 mg/cm2 to 1.25 mg/cm2, was deposited onto CF via potentiostatic electrodeposition technique and compared. The morphological analysis using FESEM of the anode revealed homogenous deposition of nanostructured PANI onto the surface of CF. Further characterization of PANI/CF composite shows that PANI has improved the surface area of the anode, thereby, increasing the conductivity of the anode and promoting biofilm attachment to the anode. The PANI/ CF composite anode with loading rate of 1.0 mg/cm2 showed the best results with maximum power density of 584.2 mW m-2 and lowest charge transfer resistance of 49.6 Ω. The reduction of COD and total phenol of wastewater were 73% and 88% respectively. The obtained results from this study show that the power production and efficiency of the MFCs can be improved greatly by using Sulphate containing PANI/ CF composite as an anode material. The CLSM results indicated that PANI facilitates in promoting EAB biofilm which in turn helps in achieving enhanced power output.

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Section: Mfc Test and Operationmentioning

confidence: 99%