Domestic Organic Waste: A Potential Source to Produce the Energy via a Single-Chamber Microbial Fuel Cell

Yaakop, Amira Suriaty; Ahmad, Akil; Hussain, Fida; Oh, Sang‐Eun; Alshammari, Mohammed B.; Chauhan, Raju

doi:10.1155/2023/2425735

Cited by 10 publications

(6 citation statements)

References 37 publications

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“…Several studies claim that the appearance of such structures on SEM indicates the presence of bacterial species. Although we observed other articles that followed the same pattern, this is just a hypothesis [57][58][59]. The anode biofilm was observed to possess the rod filament appendage's structure.…”

Section: Biological Characterizations Of Mfcmentioning

confidence: 69%

Advancement in Microbial Fuel Cells Technology by Using Waste Extract as an Organic Substrate to Produce Energy with Metal Removal

et al. 2023

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Energy generation using microbial fuel cells (MFC) and removing toxic metal ions is a potentially exciting new field of study as it has recently attracted a lot of interest in the scientific community. However, MFC technology is facing several challenges, including electron production and transportation. Therefore, the present work focuses on enhancing electron generation by extracting sugarcane waste. MFC was successfully operated in a batch mode for 79 days in the presence of 250 mg/L Pb2+ and Hg2+ ions. Sugarcane extract was regularly fed to it without interruption. On day 38, the maximum current density and power density were recorded, which were 86.84 mA/m2 and 3.89 mW/m2, respectively. The electrochemical data show that a sufficient voltage generation and biofilm formation produce gradually. The specific capacitance was found to be 11 × 10−4 F/g on day 79, indicating the steady growth of biofilm. On the other hand, Pb2+ and Hg2+ removal efficiencies were found to be 82% and 74.85%, respectively. Biological investigations such as biofilm analysis and a recent literature survey suggest that conductive-type pili species can be responsible for energy production and metal removal. The current research also explored the oxidation method of sugarcane extract by bacterial communities, as well as the metal removal mechanism. According to the parameter optimization findings, a neutral pH and waste produced extract can be an optimal condition for MFC operation.

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Section: Biological Characterizations Of Mfcmentioning

confidence: 69%

Advancement in Microbial Fuel Cells Technology by Using Waste Extract as an Organic Substrate to Produce Energy with Metal Removal

et al. 2023

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“…The released extracellular metabolites produced by B. piscis and the self-produced mediators that formed during the late exponential and stationary phases may be responsible for these waves [ 39 ]. After 12 days, the peak current dropped to 6.6 µA cm −2 at − 105 mV, presumably due to nutrient depletion, as no medium refill was done [ 40 – 42 ]. These findings match with the cell proliferation displayed in Fig.…”

Section: Resultsmentioning

confidence: 99%

Statistical optimization of waste molasses-based exopolysaccharides and self-sustainable bioelectricity production for dual chamber microbial fuel cell by Bacillus piscis

Sakr,

Khater,

Kheiralla

et al. 2023

Microb Cell Fact

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Background The application of exopolysaccharide-producing bacteria (EPS) in dual chamber microbial fuel cells (DCMFC) is critical which can minimize the chemical oxygen demand (COD) of molasses with bioelectricity production. Hence, our study aimed to evaluate the EPS production by the novel strain Bacillus piscis by using molasses waste. Therefore, statistical modeling was used to optimize the EPS production. Its structure was characterized by UV, FTIR, NMR, and monosaccharides compositions. Eventually, to highlight B. piscis' adaptability in energy applications, bioelectricity production by this organism was studied in the BCMFC fed by an optimized molasses medium. Results B. piscis OK324045 characterized by 16S rRNA is a potent EPS-forming organism and yielded a 6.42-fold increase upon supplementation of molasses (5%), MgSO4 (0.05%), and inoculum size (4%). The novel exopolysaccharide produced by Bacillus sp. (EPS-BP5M) was confirmed by the structural analysis. The findings indicated that the MFC's maximum close circuit voltage (CCV) was 265 mV. The strain enhanced the performance of DCMFC achieving maximum power density (PD) of 31.98 mW m−2, COD removal rate of 90.91%, and color removal of 27.68%. Furthermore, cyclic voltammetry (CV) revealed that anodic biofilms may directly transfer electrons to anodes without the use of external redox mediators. Additionally, CV measurements made at various sweep scan rates to evaluate the kinetic studies showed that the electron charge transfer was irreversible. The SEM images showed the biofilm growth distributed over the electrode’s surface. Conclusions This study offers a novel B. piscis strain for EPS-BP5M production, COD removal, decolorization, and electricity generation of the optimized molasses medium in MFCs. The biosynthesis of EPS-BP5M by a Bacillus piscis strain and its electrochemical activity has never been documented before. The approach adopted will provide significant benefits to sugar industries by generating bioelectricity using molasses as fuel and providing a viable way to improve molasses wastewater treatment.

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“…The greatest recorded current density and power density, with an internal resistance of 117, were 21.84 mA/m2 and 0.1047 mW/m2, respectively. Acinetobacter schindleri, Pseudomonas nitroreducens, and Pseudomonas aeruginosa are the types of bacteria that produce energy, according to the results of the biological investigation [8]. Dalayya 2023 et.…”

Section: IImentioning

confidence: 99%

Review on Recycling of Food Waste to Produce Plant Fertilizers

Kansoriya,

Singh

2023

IJRASET

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Sustainable waste management and agriculture are discussed in the perspective of food waste recycling into plant nutrients. The environmental, social, and economic effects of food waste are discussed in this review to highlight their global significance. Methods for turning food scraps into plant nutrients are compared and contrasted, with each approach's benefits and drawbacks highlighted. The staggering annual amounts of food wasted highlight the critical need for a comprehensive response to this problem. Putting food scraps to use as plant fertilizer is an eco-friendly option that follows the principles of the circular economy by reusing otherwise useless materials. Composting, anaerobic digestion, and vermicomposting are examined as three basic strategies for recycling food waste; each approach has its own benefits and flexibility. Anaerobic digestion, for instance, is well-suited to handling large quantities of organic waste, while composting is more suited to urban and domestic settings. It has been demonstrated that fertilizers made from food waste improve soil quality, stimulate plant growth, and add to overall agricultural output. Without the use of synthetic chemicals, these fertilizers increase soil structure, water retention, and plant nourishment. Furthermore, recycling helps reduce emissions of greenhouse gases, which is an important factor in slowing global warming. However, obstacles such as contamination worries, regulatory frameworks, public awareness, and technological developments stand in the way of widespread implementation of food waste recycling. The quality of the fertilizers that can be made from food waste relies heavily on the efficacy of collection and sorting processes. Guaranteeing the safety and efficacy of these items relies heavily on the establishment of regulatory standards and quality controls. Increasing public knowledge and understanding is critical if we are to see a shift in how people typically approach the recycling of food scraps.

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Domestic Organic Waste: A Potential Source to Produce the Energy via a Single-Chamber Microbial Fuel Cell

Cited by 10 publications

References 37 publications

Advancement in Microbial Fuel Cells Technology by Using Waste Extract as an Organic Substrate to Produce Energy with Metal Removal

Advancement in Microbial Fuel Cells Technology by Using Waste Extract as an Organic Substrate to Produce Energy with Metal Removal

Statistical optimization of waste molasses-based exopolysaccharides and self-sustainable bioelectricity production for dual chamber microbial fuel cell by Bacillus piscis

Review on Recycling of Food Waste to Produce Plant Fertilizers

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