Algae cathode microbial fuel cells for cadmium removal with simultaneous electricity production using nickel foam/graphene electrode

Yu, Zhongbo; He, Qiaoning; Xia, Ling; Li, Yinta; Song, Shaoxian

doi:10.1016/j.bej.2018.07.021

Cited by 68 publications

(13 citation statements)

References 42 publications

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“…According to Zhang et al. [30], the Cu atoms formed on the electrode surface after the Au atoms and that different metals deposit in distinct layers on the surface. They also reported a 95.4% gold removal, when the gold and copper ions coexisted.…”

Section: Resultsmentioning

confidence: 99%

“…It is worth noting that in such case where other metal present, the calculation of recovery efficiency is not possible since other heavy metals will deposit with the gold atoms on the cathode surface. According to Zhang et al [30], the Cu atoms formed on the electrode surface after the F I G U R E 6 Variation of Au and Cu during MFC operation for different catholyte solutions Au atoms and that different metals deposit in distinct layers on the surface. They also reported a 95.4% gold removal, when the gold and copper ions coexisted.…”

Section: Removal Of Gold Ions In Presence Of Coppermentioning

confidence: 99%

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Removal of heavy metals from industrial wastewater using microbial fuel cell

Al‐Asheh

Bagheri

Aidan

2022

Engineering in Life Sciences

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Removal efficiency of gold from a solution of pure tetrachloroaurate ions was investigated using microbial fuel cell (MFC) technology. The effects of type of catholyte solution and initial gold concentration on the removal efficiency were considered. Due to its presence at high levels in the gold wastewater, the effect of copper ions on the removal efficiency of the gold ions was also studied. The effects of pH and initial biomass concentration on the gold removal efficiency was also determined. The results showed that after 5 h contact time, 95% of gold removal efficiency from a wastewater containing 250 ppm of initial gold ions at ambient temperature using 80 g/L yeast concentration was achieved. After 48 h of the cell's operation under the same condition, 98.86% of AuCl4– ions were successfully removed from the solution. At initial gold concentration in the waste solution of 250 ppm, pH 2, and initial yeast concentration of 80 g/L, 100% removal efficiency of the gold was achieved. On the other hand, the most suitable condition for copper removal was found at a pH of 5.2, where 53% removal efficiency from the waste solution was accomplished.

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Section: Resultsmentioning

confidence: 99%

Section: Removal Of Gold Ions In Presence Of Coppermentioning

confidence: 99%

Removal of heavy metals from industrial wastewater using microbial fuel cell

Al‐Asheh

Bagheri

Aidan

2022

Engineering in Life Sciences

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“…In 2018, microalgae (Chlorella sp. QB-102) were introduced into an MFC as the cathode for Cd(II) removal using nickel foam/graphene as electrodes [29]. It was found that graphene enhanced power generation and decreased the internal resistance and start-up time in the algal-cathode MFC.…”

Section: Cadmium (Cd)mentioning

confidence: 99%

Bio-Electrochemical System Depollution Capabilities and Monitoring Applications: Models, Applicability, Advanced Bio-Based Concept for Predicting Pollutant Degradation and Microbial Growth Kinetics via Gene Regulation Modelling

et al. 2021

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Microbial fuel cells (MFC) are an emerging technology for waste, wastewater and polluted soil treatment. In this manuscript, pollutants that can be treated using MFC systems producing energy are presented. Furthermore, the applicability of MFC in environmental monitoring is described. Common microbial species used, release of genome sequences, and gene regulation mechanisms, are discussed. However, although scaling-up is the key to improving MFC systems, it is still a difficult challenge. Mathematical models for MFCs are used for their design, control and optimization. Such models representing the system are presented here. In such comprehensive models, microbial growth kinetic approaches are essential to designing and predicting a biosystem. The empirical and unstructured Monod and Monod-type models, which are traditionally used, are also described here. Understanding and modelling of the gene regulatory network could be a solution for enhancing knowledge and designing more efficient MFC processes, useful for scaling it up. An advanced bio-based modelling concept connecting gene regulation modelling of specific metabolic pathways to microbial growth kinetic models is presented here; it enables a more accurate prediction and estimation of substrate biodegradation, microbial growth kinetics, and necessary gene and enzyme expression. The gene and enzyme expression prediction can also be used in synthetic and systems biology for process optimization. Moreover, various MFC applications as a bioreactor and bioremediator, and in soil pollutant removal and monitoring, are explored.

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“…MFCs are constructed to remove heavy metals through the cathodic reduction reaction, while organic substrates are oxidized and serve as the carbon and electron donor at the anode [34]. In addition, previous studies found that biosorption and precipitation reactions (sulfides, hydroxides) also made significant contributions on the removal of heavy metals in MFC systems [55][56][57]. A summary of some applications of MFCs on heavy metal removal in wastewater is presented in Table 1 and the part of metal reductions is described in detail.…”

Section: Mfcs Performances On Heavy Metal Removal In Wastewatermentioning

confidence: 99%

The Potential of Microbial Fuel Cells for Remediation of Heavy Metals from Soil and Water—Review of Application

Fang

Achal

2019

Microorganisms

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The global energy crisis and heavy metal pollution are the common problems of the world. It is noted that the microbial fuel cell (MFC) has been developed as a promising technique for sustainable energy production and simultaneously coupled with the remediation of heavy metals from water and soil. This paper reviewed the performances of MFCs for heavy metal removal from soil and water. Electrochemical and microbial biocatalytic reactions synergistically resulted in power generation and the high removal efficiencies of several heavy metals in wastewater, such as copper, hexavalent chromium, mercury, silver, thallium. The coupling system of MFCs and microbial electrolysis cells (MECs) successfully reduced cadmium and lead without external energy input. Moreover, the effects of pH and electrode materials on the MFCs in water were discussed. In addition, the remediation of heavy metal-contaminated soil by MFCs were summarized, noting that plant-MFC performed very well in the heavy metal removal. Microorganisms 2019, 7, 697 2 of 13 electrode reaction using acetate as a substrate [6] and a two-chamber MFC setup (Figure 1) are shown below: Anodic reaction : CH 3 COO − +2H 2 O microbes → 2CO 2 +7H + +8e − (1) Cathodic reaction : O 2 +4e − +4H + → 2H 2 O. (2)

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Algae cathode microbial fuel cells for cadmium removal with simultaneous electricity production using nickel foam/graphene electrode

Cited by 68 publications

References 42 publications

Removal of heavy metals from industrial wastewater using microbial fuel cell

Removal of heavy metals from industrial wastewater using microbial fuel cell

Bio-Electrochemical System Depollution Capabilities and Monitoring Applications: Models, Applicability, Advanced Bio-Based Concept for Predicting Pollutant Degradation and Microbial Growth Kinetics via Gene Regulation Modelling

The Potential of Microbial Fuel Cells for Remediation of Heavy Metals from Soil and Water—Review of Application

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