Sustainable approach for wastewater treatment using microbial fuel cells and green energy generation – A comprehensive review

Khandaker, Shahjalal; Das, Sudipto; Hossain, Md. Tofazzal; Islam, Aminul; Miah, Mohammad Raza; Awual, Md. Rabiul

doi:10.1016/j.molliq.2021.117795

Cited by 86 publications

(24 citation statements)

References 227 publications

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“…1 𝑞 e 𝑡 (5) where qe and qt are the adsorption capacities (mg g -1 ) at equilibrium and at time t, respectively; k1 (min -1 ) and k2 (g mg -1 min -1 ) are the adsorption rate constants for the pseudo-first-order and pseudosecond-order. If the pseudo-first-order kinetic model fits the experimental data of adsorption, Eq.…”

Section: Kinetics Of Adsorptionmentioning

confidence: 99%

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Nickel hydroxide/polystyrene composites for adsorptive removal of Fe (III) and methylene blue from aqueous solutions

Bakry

Adel²,

Naggar

et al. 2021

Egypt. J. Chem.

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Removal of industrial dyes and metals into water has been considered as a serious environmental problem. To solve this issue, in this study nickel hydroxide/polystyrene composites adsorbents were introduced for the water remediation from the harmful methylene blue dye and Fe (III). Polystyrene was obtained from its monomers using emulsion polymerization technique. The composite was obtained by precipitating nickel hydroxide from its solution on polymer surface by enhancing pH of the medium. The structural and morphological characteristics of the synthesized composites were investigated by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), energetic dispersive X-ray (EDX), and x-ray diffraction (XRD). FT-IR spectra for composites showed the characteristic peaks of polystyrene and that correspond to hydroxide from NiOH2 (3442 cm -1 ). SEM analysis showed that the Ni(OH)2 were distributed on the surface of polystyrene in a regular manner. EDX analysis showed the presence of 19.9 wt% of Ni on the composite. XRD analysis showed the characteristic diffraction peaks at 2θ = 19.54 corresponding to polystyrene and at 2θ = 32.5, 38.5, 52.1, and 58.97 corresponds to Ni(OH)2. The composite was tested as an adsorbent using the batch technique. The impact of solution pH, contact time, and absorbent dose on the adsorption processes were studied to optimize the operational parameters. Kinetic and equilibrium studies showed that the adsorption processes followed pseudo-first-order kinetic and Freundlich isotherm. Maximum adsorption capacities of 32.73 and 58.24 mg g -1 were achieved in case of MB and Fe (III), respectively. Thermodynamic studies showed that ΔG values for the adsorption processes ranged from -0.075 to -1.435 kJ mol -1 by changing temperature from 303K to 343 in case of MB; ΔG values ranged from -0.467 to -1.548 kJ mol -1 by changing temperature from 303K to 343 in case of Fe (III). Negative values ΔG revealed that the adsorption processes were spontaneous and feasible. Hence, nickel hydroxide/PS composites could be potentially used for treating wastewater from MB and Fe (III).

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Section: Kinetics Of Adsorptionmentioning

confidence: 99%

“…These pollutants have attracted special concerns because of the ability of organisms to store, accumulate and transfer them. This can result in severe public health problems to animals and human beings [5]. Accordingly, wastewater systems have become an important problem which urgently should be solved.…”

Section: Introductionmentioning

confidence: 99%

Nickel hydroxide/polystyrene composites for adsorptive removal of Fe (III) and methylene blue from aqueous solutions

Bakry

Adel²,

Naggar

et al. 2021

Egypt. J. Chem.

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“…Although the type and nature of the biocatalyst play an essential role in determining the performance of MFC, other parameters such as substrate concentration, electrolyte pH, and time also have a considerable effect on the performance of the MFC. Such parameters affect the microbial growth rate, biofilm formation, and subsequently the MFC performance 28‐30 …”

Section: Introductionmentioning

confidence: 99%

Performance improvement of co‐culture inoculated microbial fuel cell using fuzzy modelling and Harris hawks optimization

Rezk

Sayed

Abdelkareem

et al. 2022

Intl J of Energy Research

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Summary Microbial fuel cell (MFC) is a promising technology since two important processes: wastewater treatment and electrical energy, can be obtained simultaneously. The performance of the MFC (maximum power density (MPD) and COD removal) depends mainly on substrate concentration, pH time, and initial COD. Therefore, the main target of this work is to simultaneously increase the MPD and COD removal by determining the optimal controlling parameters. The proposed methodology integrates fuzzy modelling and Harris Hawks optimization (HHO). Firstly, based on the experimental data set, an accurate fuzzy model is created to simulate the performance of MFC in terms of four controlling parameters. To prove the superiority of fuzzy model, the results are compared with response surface methodology (RSM) in terms of RMSE and coefficient of determination (R2). Secondly, using HHO, the optimal values of substrate concentration, co‐culture composition, pH, and time are determined. These four controlling parameters are used as decision variables during the optimization process, whereas the objective function is the simultaneous maximization of the MPD and COD removal. The obtained results proved that the optimal substrate concentration, pH, time, and initial COD values are 58.2%, 7, 14.4 days, and 32 × 10−3 (mg/L) respectively. Under this condition, the integration between fuzzy and HHO, the overall performance of MFC has been improved by 10.37% and 19.13%, respectively, compared with the experimental and RSM.

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“…and oxygen into electrical energy. [1][2][3] Proton exchange membrane fuel cells (PEMFCs) have been well studied in the past few decades due to their excellent performance. [4][5][6][7] Due to commonly used expensive platinum catalysts in PEMFCs, anion exchange membrane fuel cells (AEMFCs) with stable and inexpensive catalysts are regarded as a new direction for green energy generation technology.…”

Section: Introductionmentioning

confidence: 99%

One-pot simultaneous ARGET ATRP strategy on widening long-range ion channels to facilitate ion conductivity for alkaline anion exchange membrane fuel cells

Cai

et al. 2022

J. Mater. Chem. A

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Sustainable approach for wastewater treatment using microbial fuel cells and green energy generation – A comprehensive review

Cited by 86 publications

References 227 publications

Nickel hydroxide/polystyrene composites for adsorptive removal of Fe (III) and methylene blue from aqueous solutions

Nickel hydroxide/polystyrene composites for adsorptive removal of Fe (III) and methylene blue from aqueous solutions

Performance improvement of co‐culture inoculated microbial fuel cell using fuzzy modelling and Harris hawks optimization

One-pot simultaneous ARGET ATRP strategy on widening long-range ion channels to facilitate ion conductivity for alkaline anion exchange membrane fuel cells

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