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New Challenges in Waste-to-Energy and Bioenergy Systems
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New Challenges in Waste-to-Energy and Bioenergy Systems

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: 20 May 2025 | Viewed by 2532

Special Issue Editors

Dr. Mateusz Malinowski

E-Mail Website
Guest Editor
Department of Bioprocess Engineering, Energy and Automation, Faculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, Poland
Interests: waste management; waste treatment and disposal; municipal solid waste; environmental protection; environmental engineering; biochar; biowaste; waste-to-energy; biogas; biostabilization; life cycle assessment; circular economy
Dr. Stanisław Famielec

E-Mail Website
Guest Editor
Department of Bioprocess Engineering, Energy and Automation, Faculty of Production and Power Engineering, University of Agriculture in Krakow, 30-149 Krakow, Poland
Interests: waste management; renewable energy sources; bioenergy; biofuels; waste gasification and combustion; biogas; greenhouse effect
Prof. Dr. Atilgan Atilgan

E-Mail Website
Guest Editor
Department of Biosystem Engineering, Faculty of Rafet Kayis Engineering Faculty, Alanya Alaaddin Keykubat University, TR-07450 Antalya, Turkey
Interests: global warming; drought; water scarcity; climate changing; air quality; water management; irrigation; waste management; greenhouse gases
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Energy security, which includes steps for replacing fossil fuels with renewable energy sources, reducing carbon footprint, and minimizing impact on the environment, has become one of the most important challenges in energy policies worldwide. Waste-to-energy and bioenergy systems are types of renewable energy production that convert organic waste and biomaterials into usable energy sources, constituting a significant part of each country's energy mix. These green energy sources based on biowaste and biomass have interested scientists for many years, thereby resulting in numerous innovative technological solutions. Unfortunately, in many countries, the implementation of installations, such as thermal waste processing or anaerobic digestion, faces social resistance, despite the fact that we can produce biochar, biogas, and other biofuels in an economically and environmentally effective way in safety biorefineries. 

The efficiency, cost-effectiveness, and environmental impact of waste-to-energy and bioenergy systems depend on various factors such as technology, feedstock availability, waste management practices, and government policies. All of these factors are extremely important due to climate change and the implementation of the circular economy concept. The utilization of increasing amounts of waste for energy production can serve as an important alternative to energy systems providing electricity and heat to residents. Additionally, producing energy from waste and biomaterials helps to reduce the amount of waste on landfills. 

We are pleased to invite you to publish your research in this Special Issue, which focuses on recent advancements in the conversion of waste and biomaterials into bioenergy, particularly biogas, biochar, biodiesel and bioethanol, biomethane and biohydrogen. The number of articles published each year on similar topics indicates the need to search for new and innovative materials, technological solutions and optimal conditions for the processing of these wastes and biomaterials, especially in regard to reducing carbon emissions and addressing climate change.

The submissions should contribute novel and noteworthy research to the relevant literature. Accordingly, research papers are expected to cover a wide range of topics, including, but not limited to, the following:

  • Energy and economic challenges in the waste-to-energy and bioenergy system field and related social problems;
  • Optimization of operation of waste and biomaterials treatment facilities;
  • Technological challenges in the production and use of refuse-derived fuels, biowaste, biochar, biodiesel and bioethanol, biogas, and biomethane; 
  • Environmental impact or life cycle assessment of processes and systems for waste and biomaterials treatment into bioenergy.

Dr. Mateusz Malinowski
Dr. Stanisław Famielec
Prof. Dr. Atilgan Atilgan
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. Energies 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 2600 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

  • waste-to-energy
  • refuse-derived fuels
  • biowaste and bioenergy
  • biogas and biomethane production
  • biomaterials
  • biomass
  • biodiesel
  • bioethanol
  • biochar
  • biorefinery
  • energy storage
  • clean energy and climate changes
  • life cycle assessment
  • circular economy

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Published Papers (2 papers)

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Research

22 pages, 4462 KiB  
Article
Experimental Investigation of Physicochemical Properties of the Produced Biodiesel from Waste Frying Oil and Its Blend with Diesel Fuel
by Grzegorz Wcisło, Agnieszka Leśniak, Dariusz Kurczyński and Bolesław Pracuch
Energies 2024, 17(16), 4175; https://doi.org/10.3390/en17164175 - 22 Aug 2024
Cited by 1 | Viewed by 932
Abstract
The imperative of utilising alternative fuels for the operation of internal combustion engines stems from the requirements to reduce the emissions of greenhouse gases and other contaminants, the substantial demand for fuels, and the diminishing reserves of natural resources. The global inclination towards [...] Read more.
The imperative of utilising alternative fuels for the operation of internal combustion engines stems from the requirements to reduce the emissions of greenhouse gases and other contaminants, the substantial demand for fuels, and the diminishing reserves of natural resources. The global inclination towards sustainable development necessitates the employment of biofuels as a substitute for fossil fuels. Nonetheless, the expenditures on raw materials for the manufacture of biodiesel remain substantial, thus underlining the importance of exploring solutions for reducing them. An instance of this could be the utilisation of plant and animal by-products, such as used frying oils and slaughterhouse waste, as feedstock for biodiesel production. Not only will this facilitate the creation of less costly biofuel, but it will also provide an effective solution for the management of post-production waste. The objective of the research delineated in this paper was to ascertain select physicochemical attributes of second-generation biodiesel, derived from spent frying oil, as well as mixtures of this biodiesel with diesel and biodiesel concentrations of 10, 20, and 30% (v/v). The biodiesel produced is the waste frying oil methyl esters WFOME. The proprietary GW-201 reactor was employed in the production of biodiesel. For WFOME biodiesel, DF diesel, and their blends—B10, B20, and B30—properties that influence the formation process of the combustible mixture, autoignition, and combustion of fuel–air mixtures in self-ignition engines were determined. The conducted research has established that “B” type fuels prepared from WFOME and DF present a viable alternative to fossil fuels. Pure biodiesel exhibited a marginally reduced lower heating value, however, in the case of fuel mixtures comprising up to 30% (v/v) biodiesel and diesel, the lower heating values approximated that of diesel. An elevated cetane number alongside an increased flash point of pure B100 biodiesel have been noted. The values of cetane number for WFOME and DF mixtures were found to be either comparable or marginally higher than those of pure DF diesel fuel. Full article
(This article belongs to the Special Issue New Challenges in Waste-to-Energy and Bioenergy Systems)
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23 pages, 3761 KiB  
Article
Technical and Economic Aspects of Environmentally Sustainable Investment in Terms of the EU Taxonomy
by Józef Ciuła, Agnieszka Generowicz, Aneta Oleksy-Gębczyk, Anna Gronba-Chyła, Iwona Wiewiórska, Paweł Kwaśnicki, Piotr Herbut and Viktor Koval
Energies 2024, 17(10), 2239; https://doi.org/10.3390/en17102239 - 7 May 2024
Cited by 2 | Viewed by 1051
Abstract
Removing impurities that occur in landfill gas, from sulphur and silicon compounds, is crucial for the energetic use of biogas in a cogeneration unit for energy purposes. The aim of this study was to analyse the shaped activated carbon, examining its structure and [...] Read more.
Removing impurities that occur in landfill gas, from sulphur and silicon compounds, is crucial for the energetic use of biogas in a cogeneration unit for energy purposes. The aim of this study was to analyse the shaped activated carbon, examining its structure and elemental composition as part of the biogas purification. The qualitative study of the purified landfill gas performed in this study showed a significant overshoot of hydrogen sulphide at 304.1 ppm with respect to the gas engine manufacturer’s requirements, while the calculated hydrogen sulphide reduction efficiency was 24.58%. Examination of the surface of the spent carbon and its pores with a scanning microscope revealed a high level of clotting by sulphur compounds, which prevents proper reduction of this compound and reduces the efficiency of the treatment plant. Replacement of the activated carbon bed with a new one showed a hydrogen sulphide value of 7.5 ppm in the purified gas and a calculated reduction efficiency of 97.9%. The results of the study confirmed that continuous monitoring of the quality of the purified gas is necessary to control the adsorption properties of the activated carbon and can be used for the operation of gas engines in cogeneration units. The landfill gas treatment method described in this paper constitutes an environmentally sustainable project within the meaning of the EU regulation on the establishment of a framework to promote and facilitate this type of investment in terms of its financing and operation. The topic of the work fits into three key areas of broad research and implementation activities. The first, technological, is the transition to a low-carbon, sustainable and resource-efficient closed-loop economy; the second, environmental, pollution prevention and control. The third area is economics and finance in terms of making financial products available designed to reduce climate change and reporting on these activities. Full article
(This article belongs to the Special Issue New Challenges in Waste-to-Energy and Bioenergy Systems)
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