A microbial fuel cell using permanganate as the cathodic electron acceptor

You, Shijie; Zhao, Qingliang; Zhang, Jinna; Jiang, Junqiu; Zhao, Shiqi

doi:10.1016/j.jpowsour.2006.07.063

Cited by 309 publications

(115 citation statements)

References 29 publications

(49 reference statements)

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“…Due to incomplete reduction of oxygen causes low energy conversion efficiency producing reactive intermediates and free radical species, which can be devastating; researching this part of MFC may be essential. A proper approach for improving power output is adding chemical electron acceptors like permanganate in cathode compartment (You et al 2006). To best of our knowledge, there is no exact information in this special system except for the work done by the current authors (Nasirahmadi and Safekordi 2011).…”

Section: Introductionmentioning

confidence: 99%

Enhanced electricity generation from whey wastewater using combinational cathodic electron acceptor in a two-chamber microbial fuel cell

Nasirahmadi

Safekordi

2012

Int. J. Environ. Sci. Technol.

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While energy consumption is increasing worldwide due to population growth, the fossil fuels are unstable and exhaustible resources for establishing sustainable life. Using biodegradable compounds present in the wastewater produced in industrial process as a renewable source is an enchanting approach followed by scientists for maintaining a sustainable energy production to vanquish this problem for ulterior generations. In this research, bioelectricity generation with whey degradation was investigated in a two-chamber microbial fuel cell with humic acid as anodic electron mediator and a cathode compartment including combinational electron acceptor. Escherichia coli was able to use the carbohydrate originated from whey to generate bioelectricity. The open-circuit potential in absence of mediator was 751.5 mV at room temperature. The voltage was stable for more than 24 h. Humic acid was used as a suitable mediator. In addition, some mixed chemicals were employed as catholyte. Based on polarization curve, the power and current values in the presence of a mixed solution of potassium iodide (KI), ferric chloride [FeCl 3 (I)] and manganese chloride tetrahydride (MnCl 2 Á4H 2 O) with doubling of oxidant (oxygen) concentration using agitation with magnet stirrer in cathode compartment without any buffer solution were boosted to 562.9 lW and 1906.1 lA, respectively, and demonstrated the best result for power generation.

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Section: Introductionmentioning

confidence: 99%

Enhanced electricity generation from whey wastewater using combinational cathodic electron acceptor in a two-chamber microbial fuel cell

Nasirahmadi

Safekordi

2012

Int. J. Environ. Sci. Technol.

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“…Potassium permanganate has been used as an environmental friendly oxidizing agent in industries. In both acidic and alkaline conditions, permanganate accepts three electrons and thus is reduced to manganese dioxide as illustrated in equations 3 and 4 (You et al, 2006):…”

Section: Resultsmentioning

confidence: 99%

“…Since cathode has limited oxidation capacity, for high power production in an MFC use of oxidizing agent in cathode is recommended (Yazdi et al, 2008). Various electron accepters, such as ferricyanide and permanganate have been used as catholyte solution in two-chamber MFCs, to enhance the reduction reaction in cathodic compartment (He and Angenent, 2006;Rabaey et al, 2004;You et al, 2006). Oxygen is often used as an electron accepter in cathode compartment because of its high thermodynamic redox potential, good self-sustaining operation, and availability (He and Angenent, 2006).…”

Section: Introductionmentioning

confidence: 99%

Microbial Fuel Cell a Reliable Source for Recovery of Electrical Power from Synthetic Wastewater

et al. 2017

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Microbial fuel cells (MFCs) were successfully used as a biological process to remove organic load from synthetic wastewater. Electricity was produced via oxidation of biodegradable organic matter in the presence of active biocatalyst. The system was able to generate clean energy at high efficiency. Wastewater contained organic compound used as substrate in the anaerobic chamber of MFC. The chemical energy generated sufficient electrons which were passed through a resistance to identify current density and liberate electric power as energy source. Acetone as biodegradable substrate with concentration of 3g.l -1 was introduced as carbon source in the anode chamber of the MFC. The mixed culture of living microorganisms originated from a biological treatment unit used for anaerobic degradation of organic substrate. The inoculums were supplied by an up flow anaerobic hybrid reactor, a pilot scale bioreactor used for treating pulp and paper wastewater. In this course of treatment, once chemical oxygen demand was removed the current and power was generated while data were recorded via online acquisition system. Also polarization curve was obtained for each set of experiment. In cathode compartment several concentration of ferocynide and potassium permanganate were added to obtain the optimal concentration of oxidizing agents in the cathode chamber. At concentration of 300 µM potassium permanganate, the maximum power and current generated were 22 mW.m -2 and 70 mA.m -2 , respectively.

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“…Power output from microbial fuel cells has been affected by high internal resistance inherent in these systems. However, in a bid to improve power density in MFC's, the use of electron acceptors apart from oxygen has been extensively explored (Rabaey et al, 2004;Rabaey et al, 2003;You et al, 2006). These authors used ferricyanide and permanganate solution to improve power density via reduction in internal resistance or high open circuit voltage (OCV).…”

mentioning

confidence: 99%

“…These authors used ferricyanide and permanganate solution to improve power density via reduction in internal resistance or high open circuit voltage (OCV). The maximum open circuit voltage recorded to date using permanganate solution is 1.532 volts by You et al, (2006). Though, power generation was enhanced in these studies using chemical catholytes, the problem of continuous replacement and toxicity of these electron acceptor i.e.…”

mentioning

confidence: 99%

Generation of Electricity from Abattoir Waste Water with the Aid of a Relatively Cheap Source of Catholyte

Momoh¹,

Neayor²

2010

Journal of Applied Sciences and Environmental Management

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ABSTRACT:The generation of electricity from high strength abattoir waste water has been demonstrated to be feasible at room temperature using a novel electron acceptor as catholyte in dual-chambered microbial fuel cell systems with agar-salt bridge inter-connection. The utilization of this electron acceptor in the single dualchambered and double dual-chambered in parallel and series was observed to produce an open circuit voltage of 1560mV, 1400mV and 2860mV respectively. Maximum power density was observed to be 12.26mW/m 2 , 20.71mW/m 2 for the single dual-chambered and double dual-chambered in parallel respectively. However, due to very high internal resistance of the double dual-chambered in series (>9999Ω) a very poor polarization data was obtained. Current densities at maximum power for the single dual-chambered and double dual-chambered in parallel were observed to be 16.09mA/m 2 and 35.77mA/m 2 with internal resistances 4000Ω and 600Ω respectively. The application of this novel catholyte for power generation in MFC's systems has the potential of regeneration thus, sustaining its utility for long periods. It was concluded that for large scale applications, MFC's systems utilizing this novel catholyte as electron acceptor, connection in parallel would be preferable, because of the high open circuit voltage, reduced internal resistance and high current density achieved from such connections. @ JASEMThe quest for alternative sources of energy is pertinent at this period of our history when concerns about global warming are causing topical and sensitive debate worldwide. It is a well known fact that energy can be transformed from one form to the other, for example, mechanical energy can be converted to electrical energy, and so on. One novel process which seems to have confirmed this statement in recent times is the microbial fuel cell technology. This technology has the capability of transforming chemical energy stored up in organic matter to direct current

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A microbial fuel cell using permanganate as the cathodic electron acceptor

Cited by 309 publications

References 29 publications

Enhanced electricity generation from whey wastewater using combinational cathodic electron acceptor in a two-chamber microbial fuel cell

Enhanced electricity generation from whey wastewater using combinational cathodic electron acceptor in a two-chamber microbial fuel cell

Microbial Fuel Cell a Reliable Source for Recovery of Electrical Power from Synthetic Wastewater

Generation of Electricity from Abattoir Waste Water with the Aid of a Relatively Cheap Source of Catholyte

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