Bioelectricity production from acidic food waste leachate using microbial fuel cells: Effect of microbial inocula

Li, Xiao Min; Cheng, Ka Yu; Selvam, Ammaiyappan; Wong, Jonathan W.C.

doi:10.1016/j.procbio.2012.10.001

Cited by 112 publications

(32 citation statements)

References 33 publications

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“…However when air is used at the cathode side, OCV obtained are much lower than the ideal. In an MFC study done by Li et al [25] using anaerobic wastewater as inoculum in a 75.6 mL dual chambered MFC with air bubbled in deionized catholyte, OCV was within the range of +419 to +489 mV (vs. Ag/ AgCl). In other study done by Khan et al [26] using anaerobic digester from palm oil waste as inoculum in 20 mL single chamber air-cathode, found that the OCV also dependent on the catalyst applied onto the cathode, which could ranged from +385 to +626 mV (vs. Ag/ ACl).…”

Section: Analytical Methods and Calculationmentioning

confidence: 96%

Effect of Long Time Oxygen Exposure on Power Generation of Microbial Fuel Cell With Enriched Mixed Culture

Bakar¹,

Pasco

Gooneratne

et al. 2016

MJAS

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In this study, we are interested in the effect of long time exposure of the microbial fuel cells (MFCs) to air on the electrochemical performance. Here, MFCs enriched using an effluent from a MFC operated for about eight months. After 30 days, the condition of these systems was reversed from aerobic to anaerobic and vice versa, and their effects were observed for 11 days. The results show that for anaerobic MFCs, power generation was reduced when the anodes were exposed to dissolved oxygen of 7.5 ppm. The long exposure of anodic biofilm to air led to poor electrochemical performance. The power generation recovered fully when air supply stopped entering the anode compartment with a reduction of internal resistance up to 53%. The study was able to show that mixed facultative microorganism able to strive through the aerobic condition for about a month at 7.5 ppm oxygen or less. The anaerobic condition was able to turn these microbes into exoelectrogen, producing considerable power in relative to their aerobic state.Keywords: microbial fuel cell, aerobic, oxygen exposure, wastewater AbstrakDalam kajian ini, kami berminat untuk mengesan prestasi elektrokimia sel bahan api mikrob (MFC) terhadap pendedahan jangka masa panjang kepada udara. Di sini, MFC diperkaya menggunakan efluen daripada MFC yang telah beroperasi selama kira -kira lapan bulan. Selepas 30 hari, keadaan sistem ini telah diterbalikkan dari aerobik untuk anaerobik dan sebaliknya, dan kesannya diperhatikan selama 11 hari. Keputusan menunjukkan bahawa untuk MFC anaerobik, penjanaan kuasa telah berkurangan apabila anod terkena oksigen terlarut 7.5 ppm. Pendedahan jangka masa panjang biofilem anod kepada udara membawa kepada prestasi elektrokimia yang rendah. Penjanaan kuasa pulih sepenuhnya apabila bekalan udara berhenti memasuki ruangan anod dengan pengurangan rintangan sehingga 53 %. Kajian ini dapat menunjukkan bahawa mikroorganisma fakultatif campuran dapat hidup melalui keadaan aerobik selama sebulan pada 7.5 ppm oksigen atau kurang. Keadaan anaerobik mampu mengubah mikrob ini kepada eksoelektrogen, seterusnya menghasilkan kuasa yang tinggi berbanding dengan apabila berada di dalam keadaan aerobik.Kata kunci: sel bahan api mikrob, aerobik, pendedahan oksigen, air sisa

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Section: Analytical Methods and Calculationmentioning

confidence: 96%

Effect of Long Time Oxygen Exposure on Power Generation of Microbial Fuel Cell With Enriched Mixed Culture

Bakar¹,

Pasco

Gooneratne

et al. 2016

MJAS

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“…More examples are listed in Table-2. Electrodes: An ideal electrode should facilitate microbial colonization, substrate transport to attached microorganisms, removal of waste products, efficient transfer of electrons from the microorganisms to the electrode surface and efficient collection of current from all regions of the electrode [29]. Most commonly used electrodes are carbonaceous in nature [30], viz., graphite fiber brushes [31], graphite plates [31], graphite felt [32] graphite rods, carbon mesh [33], carbon cloth [34] and carbon felt [35]. In addition, a number of novel materials are being experimented for their potential for generation of electricity in a sustainable and reliable manner (Table-2).…”

Section: Set Up Of a Microbial Fuel Cellmentioning

confidence: 99%

Microbial Fuel Cells as Alternate Source of Energy: Research, Advancements and Future Prospects in Indian Scenario

Basheer¹,

Suma²,

Sreelekshmy³

et al. 2017

Asian J. Chem.

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Today, the world is on the verge of transformation from fossil fuels to alternative and sustainable renewable sources due to many reasons. Many plausible technologies have been developed of which, energy from biomass and biowaste is a widely accepted choice. In India too, the fuel crisis is imminent and renewable fuel sources are being developed on a large scale to meet energy requirements. However, generation of electricity from biomass and biowaste is a rather unconventional method which is less exploited. The technology that possesses immense future prospective requires collaboration of expertise from various disciplines of science. Here we present a comprehensive view of developments and novel approaches in microbial fuel cell research in Indian scenario in the backdrop of the developments on a global scale. Though the research outputs in India in terms of power density is in par with that on global scale, we lag behind in bringing a collaborative approach.

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“…Several technologies have been developed or proposed to avoid generation of waste and make batteries environmentally friendly. Acidic food waste has also been studied as a potential source of microbes for microbial fuel cells [18]. As in conventional batteries, electrolyte plays a critical role in biochemical cells [17].…”

Section: Introductionmentioning

confidence: 99%

A study on the potential of using plant proteins as electrolytes in a biochemical cell

Venkatesha¹,

Guna²,

Bhuvaneswari

et al. 2017

Env Prog and Sustain Energy

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We demonstrate that proteins extracted from nonedible oil meals can be used as inexpensive, renewable, and biodegradable electrolytes in biochemical cells. Electrolytes are the critical components of cells and generally made using metals, ionic, or salt solutions. These electrolytes are either expensive, harmful to the environment when disposed and/or provide poor performance. Proteins behave as anionic or cationic charge carriers depending on the environment there are in. Recent increase in the production of biodiesel from oil seeds has led to the abundant availability of protein containing oil meals. These oil meals inherently and inevitably contain the proteins and are available in large quantities at low cost. In this report, we have extracted proteins from three different oil meals. Proteins obtained were used as electrolytes with different electrodes and operating conditions. A voltage of up to 300 mV was generated using copper electrodes as both anode and cathode. Protein concentration of 10% was found to be optimum and increasing time substantially reduces the voltage for all the electrodes. Although higher voltage could be generated when dissimilar electrodes were used, the contribution from the proteins to the charge generated was minimal. Maximum current generated was about 9 mA when a 10 ohm resistor was connected as load. Utilizing proteins from nonedible oil meals will provide inexpensive and environmentally friendly electrolytes for biochemical cells. This is the first time that proteins have been used as electrolytes for biochemical cells. More importantly, we have used the byproduct generated during production of biodiesel as source for the proteins. This makes the proteins inexpensive, biodegradable and widely available. At the same time, high value addition is possible to the byproduct which will lead to lowering the cost of the biodiesel. © 2017 American Institute of Chemical Engineers Environ Prog, 37: 961–967, 2018

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Bioelectricity production from acidic food waste leachate using microbial fuel cells: Effect of microbial inocula

Cited by 112 publications

References 33 publications

Effect of Long Time Oxygen Exposure on Power Generation of Microbial Fuel Cell With Enriched Mixed Culture

Effect of Long Time Oxygen Exposure on Power Generation of Microbial Fuel Cell With Enriched Mixed Culture

Microbial Fuel Cells as Alternate Source of Energy: Research, Advancements and Future Prospects in Indian Scenario

A study on the potential of using plant proteins as electrolytes in a biochemical cell

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