Efficient removal of nitrobenzene and concomitant electricity production by single-chamber microbial fuel cells with activated carbon air-cathode

Zhang, Enren; Wang, Feng; Zhai, Wenyan; Scott, Keith; Wang, Xu; Diao, Guowang

doi:10.1016/j.biortech.2017.01.009

Cited by 28 publications

(8 citation statements)

References 35 publications

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“…A nitrobenzene elimination over 97% was obtained even when the nitrobenzene-loading rate was reached 17.2mol m -3 d -1 . The potential product of nitrobenzene reduction such as aniline can be eliminated efficiently [157]. Xie et al [158] combined a membraneless air-cathode SC-MFC with CW for finding a possible treatment with good nitrobenzene removal efficiency.…”

Section: Nitrobenzenementioning

confidence: 99%

Comprehensive Review on the Use of Food Industry Wastewater as Substrates in Microbial Fuel Cells

Kanani

2021

IJESNR

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Today, the world is facing climate change challenges with environmental protection being a top priority. Optimizing energy consumption due to its high cost and environment protection is a basic human demand. For industries, reduction in production costs is determinative to success. In this regard, Microbial fuel cell (MFC) is a unique promising technology with wastewater treatment and bioelectricity generation. The MFCs will help reduce energy consumption, curb the wastewater pollution, and standardize it for releasing into the environment. The food industry by producing high volumes of biomass with high organic pollution load are highly prone to use in MFCs as a substrate. Various food industry effluents have been tested, in real or synthetic form in the MFCs. Due to the improvements in the process and progress in novel configurations, better results have been increasingly obtained. Now, the MFC can be used in the industries individually or by integration with other technologies. In this review, the latest results from the use of food industry wastewater in MFCs along with effective process conditions are evaluated.

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Section: Nitrobenzenementioning

confidence: 99%

Comprehensive Review on the Use of Food Industry Wastewater as Substrates in Microbial Fuel Cells

Kanani

2021

IJESNR

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“…Alcohol-powered MFCs were the second dominant community members [37]. The A2 sequence type was 99% similar to uncultured Pseudomonas sp., which have been proven to self-produce phenazine-based mediators in the anodes of MFCs to improve electricity generation [38]. Furthermore, Pham et al demonstrated that metabolites produced by Pseudomonas sp.…”

Section: The Anode Microbial Communitymentioning

confidence: 99%

Analysis of Anodes of Microbial Fuel Cells When Carbon Brushes Are Preheated at Different Temperatures

et al. 2017

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Abstract:The anode electrode is one of the most important components in all microbial electrochemical technologies (METs). Anode materials pretreatment and modification have been shown to be an effective method of improving anode performance. According to mass loss analysis during carbon fiber heating, five temperatures (300, 450, 500, 600, and 750 • C) were selected as the pre-heating temperatures of carbon fiber brush anodes. Microbial fuel cell (MFC) reactors built up with these pre-heated carbon brush anodes performed with different power densities and Coulombic efficiencies (CEs). Two kinds of measuring methods for power density were applied, and the numerical values of maximum power densities diverged greatly. Reactors with 450 • C anodes, using both methods, had the highest power densities, and the highest CEs were found using 500 • C anode reactors. The surface elements of heat-treated carbon fibers were analyzed using X-ray photoelectron spectra (XPS), and C, O, and N were the main constituents of the carbon fiber. There were four forms of N1s at the surface of the polyacrylonitrile (PAN)-based carbon fiber, and their concentrations were different at different temperature samples. The microbial community of the anode surface was analyzed, and microbial species on anodes from every sample were similar. The differences in anode performance may be caused by mass loss and by the surface elements. For carbon brush anodes used in MFCs or other BESs, 450-500 • C preheating was the most suitable temperature range in terms of the power densities and CEs.

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“…One of the unique advantages of MFCs is the use of different types of waste as feedstock for microbes, whereby contaminants are broken down for the production of electricity [22,23]. So far, a wide range of waste materials have been used as substrates, e.g., waste from the brewery, dairy or oil refinery industries, food processing wastewater and domestic wastewater, among others [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Impact of Inoculum Type on the Microbial Community and Power Performance of Urine-Fed Microbial Fuel Cells

et al. 2020

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Bacteria are the driving force of the microbial fuel cell (MFC) technology, which benefits from their natural ability to degrade organic matter and generate electricity. The development of an efficient anodic biofilm has a significant impact on the power performance of this technology so it is essential to understand the effects of the inoculum nature on the anodic bacterial diversity and establish its relationship with the power performance of the system. Thus, this work aims at analysing the impact of 3 different types of inoculum: (i) stored urine, (ii) sludge and (iii) effluent from a working MFC, on the microbial community of the anodic biofilm and therefore on the power performance of urine-fed ceramic MFCs. The results showed that MFCs inoculated with sludge outperformed the rest and reached a maximum power output of 40.38 mW·m−2anode (1.21 mW). The power performance of these systems increased over time whereas the power output by MFCs inoculated either with stored urine or effluent decreased after day 30. These results are directly related to the establishment and adaptation of the microbial community on the anode during the assay. Results showed the direct relationship between the bacterial community composition, originating from the different inocula, and power generation within the MFCs.

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Efficient removal of nitrobenzene and concomitant electricity production by single-chamber microbial fuel cells with activated carbon air-cathode

Cited by 28 publications

References 35 publications

Comprehensive Review on the Use of Food Industry Wastewater as Substrates in Microbial Fuel Cells

Comprehensive Review on the Use of Food Industry Wastewater as Substrates in Microbial Fuel Cells

Analysis of Anodes of Microbial Fuel Cells When Carbon Brushes Are Preheated at Different Temperatures

Impact of Inoculum Type on the Microbial Community and Power Performance of Urine-Fed Microbial Fuel Cells

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