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Sustainability
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Recent Advances in Agricultural Wastes for Sustainable Biofuel Production
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Recent Advances in Agricultural Wastes for Sustainable Biofuel Production

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Energy Sustainability".

Deadline for manuscript submissions: closed (30 July 2023) | Viewed by 5754

Special Issue Editors

Prof. Dr. Eriola Betiku

E-Mail Website
Guest Editor
1. Department of Chemical Engineering, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
2. Department of Biological Sciences, Florida A&M University, Tallahassee, FL 32307, USA
Interests: biofuel development; bioprocessing; biorefinery of agricultural wastes; process modeling and optimization; process intensification
Prof. Dr. Gopinath Halder

E-Mail Website
Guest Editor
Department of Chemical Engineering, National Institute of Technology Durgapur, M. G. Avenue, Durgapur 713209, West Bengal, India
Interests: bioenergy and biofuel from microalgae and natural feedstock; heterogeneous carbonaceous catalyst support and biosorbent synthesis from biomass; wastewater treatment: biosorption and microbial remediation

Special Issue Information

Dear Colleagues,

With the rising world population and advancement of technology, the energy demand has also increased, subsequently straining the conventional fossil fuel energy supply. Furthermore, the price of crude petroleum is unstable and generally rising, and it is often subject to political maneuverings. Additionally, fossil fuels release pollutants that are harmful to both humans and the environment. Thus, research has focused on alternative energy sources, such as biofuels, wind energy, tidal energy, etc. Biofuels, such as biogas, bioethanol, biodiesel, and biohydrogen, are gaining attention worldwide as renewable and sustainable energy sources, unlike finite fossil fuels.

We are delighted to announce a new Special Issue, entitled "Recent Advances in Agricultural Wastes for SustainableBiofuel Production", in the open access journal Sustainability (ISSN 2071-1050, IF 3.251). We are serving as guest editors for this issue. The submission deadline is 30 July 2023; papers may be submitted immediately or at any point up to 30 July 2023 and will be published on an ongoing basis.

Research papers, reviews, and short communications on “Recent Advances in Agricultural Wastes for Sustainable Biofuel Production” are encouraged for this Special Issue. Research areas may include (but are not limited to) the following: catalyst synthesis, agricultural waste fermentation, and anaerobic digestion of agricultural waste for biogas production; and bioethanol, biogas, biodiesel, and biohydrogen production.

We look forward to receiving your contributions.

Prof. Dr. Eriola Betiku
Prof. Dr. Gopinath Halder
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • agricultural wastes
  • biogas
  • biodiesel
  • bioethanol
  • catalyst
  • fermentation
  • anaerobic digestion
  • esterification
  • transesterification
  • kinetics
  • modeling
  • optimization

Published Papers (3 papers)

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Research

21 pages, 3835 KiB  
Article
Biodiesel Production Using a Banana Peel Extract-Mediated Highly Basic Heterogeneous Nanocatalyst
by Ananya Satapathy, Kankana Saikia and Samuel Lalthazuala Rokhum
Sustainability 2023, 15(14), 11332; https://doi.org/10.3390/su151411332 - 20 Jul 2023
Cited by 2 | Viewed by 1634
Abstract
Greener methods for the production of nanoparticles (NPs) are highly investigated to minimize the harmfulness of chemical synthetic processes. In this study, CaO (calcium oxide) NPs were synthesized using extracts of banana (Musa acuminata) leaves. The precipitate of Ca(OH)2 (calcium [...] Read more.
Greener methods for the production of nanoparticles (NPs) are highly investigated to minimize the harmfulness of chemical synthetic processes. In this study, CaO (calcium oxide) NPs were synthesized using extracts of banana (Musa acuminata) leaves. The precipitate of Ca(OH)2 (calcium hydroxide) obtained from the precursor Ca(NO3)2 (calcium nitrate) was calcined at 900 °C in a muffle furnace to form CaO. The catalytic activity of the prepared CaO was studied in transesterification of soybean oil. From the 1H-NMR analysis, a high soybean oil conversion of 98.0% was obtained under the optimum reaction conditions of 8 wt% of catalyst loading, 2 h reaction time, and a 15:1 methanol to oil molar ratio at 65 °C temperature. 1H-NMR, 13C-NMR, and FT-IR spectroscopic studies of the product proved the formation of biodiesel. The CaO nanocatalyst was characterized using XRD, SEM-EDS, TEM, FT-IR, XPS, and BET analyses. The average diameter of the catalyst was determined as 46.2 nm from TEM analyses. The catalyst can be used successfully even after five active reaction cycles without substantial loss in the activity of the catalyst. Full article
(This article belongs to the Special Issue Recent Advances in Agricultural Wastes for Sustainable Biofuel Production)
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11 pages, 1818 KiB  
Article
Use of Tangerine Waste as Fuel for the Generation of Electric Current
by Segundo Rojas-Flores, Luis Cabanillas-Chirinos, Renny Nazario-Naveda, Moisés Gallozzo-Cardenas, Félix Diaz, Daniel Delfin-Narciso and Walter Rojas-Villacorta
Sustainability 2023, 15(4), 3559; https://doi.org/10.3390/su15043559 - 15 Feb 2023
Cited by 8 | Viewed by 1918
Abstract
Fruit waste has increased exponentially worldwide, within which tangerine is one of those that generates a greater amount of organic waste, which is currently not fully used. On the other hand, microbial fuel cells (MFCs) are presented as an opportunity to take advantage [...] Read more.
Fruit waste has increased exponentially worldwide, within which tangerine is one of those that generates a greater amount of organic waste, which is currently not fully used. On the other hand, microbial fuel cells (MFCs) are presented as an opportunity to take advantage of organic waste to generate electricity, which is why the main objective of this research is to generate bioelectricity using tangerine waste as a substrate in microbial fuel cells using zinc and copper electrodes. It was possible to generate current and voltage peaks of 1.43973 ± 0.05568 mA and 1.191 ± 0.035 V on days eighteen and seventeen, respectively, operating with an optimum pH of 4.78 ± 0.46 and with electrical conductivity of the substrate of 140.07 ± 3.51 mS/cm, while the Brix degrees gradually decreased until the last day. The internal resistance determined was 65.378 ± 1.967 Ω, while the maximum power density was 475.32 ± 24.56 mW/cm2 at a current density of 5.539 A/cm2 with a peak voltage of 1024.12 ± 25.16 mV. The bacterium (Serratia fonticola) and yeasts (Rhodotorula mucilaginosa) were identified in the substrate with an identity of 99.57 and 99.50%, respectively. Finally, the cells were connected in series, managing to generate 3.15 V, which allowed the turning on of a red LED light. Full article
(This article belongs to the Special Issue Recent Advances in Agricultural Wastes for Sustainable Biofuel Production)
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10 pages, 2795 KiB  
Article
Potential Use of Coriander Waste as Fuel for the Generation of Electric Power
by Segundo Rojas-Flores, Magaly De La Cruz-Noriega, Luis Cabanillas-Chirinos, Renny Nazario-Naveda, Moisés Gallozzo-Cardenas, Félix Diaz and Emzon Murga-Torres
Sustainability 2023, 15(2), 896; https://doi.org/10.3390/su15020896 - 04 Jan 2023
Cited by 5 | Viewed by 1684
Abstract
The increase in the population and its need to produce food has caused the level of contamination by organic waste to increase exponentially in recent years. Innovative methods have been proposed for the use of this waste and thus to mitigate its impact. [...] Read more.
The increase in the population and its need to produce food has caused the level of contamination by organic waste to increase exponentially in recent years. Innovative methods have been proposed for the use of this waste and thus to mitigate its impact. One of these is to use it as fuel in microbial fuel cells to generate electricity. This research aims to generate bioelectricity using coriander waste in microbial fuel cells. The maximum voltage and current observed were 0.882 ± 0.154 V and 2.287 ± 0.072 mA on the seventh and tenth day, respectively, these values were obtained working at an optimum operating pH of 3.9 ± 0.16 and with an electrical conductivity of 160.42 ± 4.54 mS/cm. The internal resistance observed in the cells was 75.581 ± 5.892 Ω, with a power density of 304.325 ± 16.51 mW/cm2 at 5.06 A/cm2 current density. While the intensity of the final FTIR (Fourier transform infrared spectroscopy) spectrum peaks decreased compared to the initial one, likewise, with a percentage of identity, it was possible to attribute 98.97, 99.39, and 100% to the species Alcaligenes faecalis, Alcaligenes faecali, and Pseudomonas aeruginosa. Finally, the cells were connected in series, managing to turn on an LED light (red) with the 2.61 V generated. This research provides an innovative and environmentally friendly way that companies and farmers can use to reuse their waste. Full article
(This article belongs to the Special Issue Recent Advances in Agricultural Wastes for Sustainable Biofuel Production)
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