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Energies
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Recovery of Solid Waste in Industrial and Environmental Processes
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Recovery of Solid Waste in Industrial and Environmental Processes

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 11715

Special Issue Editor

Dr. Giorgio Vilardi

E-Mail Website
Guest Editor
Department of Chemical Engineering Materials Environment, Sapienza University of Rome, Rome, Italy
Interests: process intensification; methanation; P2G; exergy; industrial and environmental catalysis; nano-catalysts production; adsorption; plant units design and modeling; process development and scale-up; dynamic modeling; wastewater treatment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The development of sustainable industrial and environmental processes through the recycling of material is considered a fundamental task for various researchers and companies, since the re-utilization of solid wastes is one of the pillars of a Circular Economy. A notable number of materials, at micro or nanoscale, has been recovered from various industrial and agricultural wastes in the last twenty years, with the aim to develop sustainable processes to allow their complete re-utilization for antropic actvities and use. Among these novel materials, agro-industrial wastes have been demonstrated to be suitable for energy and raw material recovery, by transforming them in gaseous/liquid fuels (gasification/pyrolysis) or by activating them to produce functionalized adsorbent materials.

In this Special Issue, researchers are invited to submit original research papers, as well as review articles, on any of the topics related to energy/raw material recovery from agro-industrial waste, also providing an economic analysis of the whole process. Exergy analysis of novel energy/raw material recovery processes is also welcome. The studies should report the complete re-use of the waste, focusing on the overall costs and sustainability of the proposed processes.

Dr. Giorgio Vilardi
Guest Editor

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

  • energy and exergy analysis
  • circular Economy
  • plant analysis and simulation
  • agro-industrial waste re-use
  • environmental processes
  • adsorbent recovery
  • thermal recovery
  • energy recovery

Published Papers (5 papers)

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Editorial

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5 pages, 181 KiB  
Editorial
Recovery of Solid Waste in Industrial and Environmental Processes
by Antonio Trinca, Valentina Segneri, Thanasis Mpouras, Nelson Libardi and Giorgio Vilardi
Energies 2022, 15(19), 7418; https://doi.org/10.3390/en15197418 - 10 Oct 2022
Cited by 1 | Viewed by 979
Abstract
In recent years, an alarming increase in CO2 emissions has been noticed [...] Full article
(This article belongs to the Special Issue Recovery of Solid Waste in Industrial and Environmental Processes)

Research

Jump to: Editorial

13 pages, 1954 KiB  
Article
The Impacts of Shanghai’s July 2019 Municipal Domestic Waste Management Regulations on Energy Production
by Changjun Li, Firooz Firoozmand and Marie K. Harder
Energies 2021, 14(22), 7658; https://doi.org/10.3390/en14227658 - 16 Nov 2021
Cited by 2 | Viewed by 2401
Abstract
Cities all over the world are trying to divert municipal waste away from landfill and fossil fuel-assisted incineration and toward circular economies where waste is converted into new resources. Residential food waste is the most challenging sub-stream, as it is the worst culprit [...] Read more.
Cities all over the world are trying to divert municipal waste away from landfill and fossil fuel-assisted incineration and toward circular economies where waste is converted into new resources. Residential food waste is the most challenging sub-stream, as it is the worst culprit in producing greenhouse gases in landfill and incineration, and it is almost impossible to have residents separate it cleanly at source. Here we investigate the outstanding diversion results of Shanghai Municipality since the introduction of the July 2019 Municipal Regulations, of over 9600 tons per day of clean food waste, still maintained two years later. In particular, we question why they might have increased so sharply after July 2019 and examine historic policies to determine broad policy intentions, their implementations, and officially reported tonnages of different resulting waste streams. It was found that many prior steps included infrastructure building and piloting different behavioral approaches. However, the July 2019 policy brought in legal responsibilities to very clearly defined roles for each stakeholder—including for the residents to sort and for local governances to support them—and this pulled all the operational elements together. The immediate and sustained jumps in clean food waste collection fed biogas production (0.1–1.0 GWh/day) and energy-from-waste (less wet) (5.4–8.6 GWh/day). Full article
(This article belongs to the Special Issue Recovery of Solid Waste in Industrial and Environmental Processes)
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18 pages, 3575 KiB  
Article
The Electrification of Conventional Industrial Processes: The Use of Mechanical Vapor Compression in an EtOH–Water Distillation Tower
by Andrea Liberale Rispoli, Giacomo Rispoli, Nicola Verdone, Annarita Salladini, Emanuela Agostini, Mirko Boccacci, Maria Paola Parisi, Barbara Mazzarotta and Giorgio Vilardi
Energies 2021, 14(21), 7267; https://doi.org/10.3390/en14217267 - 03 Nov 2021
Cited by 5 | Viewed by 2112
Abstract
The aim of this study is to analyze the exergetic, environmental, and economic impact of the electrification of a bio-refinery plant, considering the application of Mechanical Vapor Compression (MVC) to a conventional water–ethanol distillation column in the context of bioethanol production. The process [...] Read more.
The aim of this study is to analyze the exergetic, environmental, and economic impact of the electrification of a bio-refinery plant, considering the application of Mechanical Vapor Compression (MVC) to a conventional water–ethanol distillation column in the context of bioethanol production. The process was implemented in AspenPlus® and Aspen Exchange Design and Rating (EDR) simulation environments, where a sensitivity analysis was also carried out, considering four scenarios characterized by different compressions’ operative conditions, and including a Coefficient of Performance (CoP) analysis of the proposed solution with MVC. Exergetic and economic analyses were performed, and the relevant impacts on Operative Expenditure (OpEx) and Capital Expenditure (CapEx) were analyzed. Comparing the base case scenario with the proposed solution, a reduction of operative costs of around 63% was achieved. Finally, an environmental analysis was carried out, showing a remarkable reduction in the carbon footprint of the unit, with a carbon dioxide emission reduction of almost 80% for the MVC solution, in line with RED target requirements. Full article
(This article belongs to the Special Issue Recovery of Solid Waste in Industrial and Environmental Processes)
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14 pages, 811 KiB  
Article
Hydrocarbon Fractions from Thermolysis of Waste Plastics as Components of Engine Fuels
by Anna Matuszewska, Adam Hańderek, Maciej Paczuski and Krzysztof Biernat
Energies 2021, 14(21), 7245; https://doi.org/10.3390/en14217245 - 03 Nov 2021
Cited by 7 | Viewed by 2797
Abstract
Plastics are one of the basic construction materials with a wide range of various applications. One of their disadvantages is the problem of managing the waste they generate. Chemical recycling offers the possibility of liquefying polymeric waste and using it as fuel components. [...] Read more.
Plastics are one of the basic construction materials with a wide range of various applications. One of their disadvantages is the problem of managing the waste they generate. Chemical recycling offers the possibility of liquefying polymeric waste and using it as fuel components. Existing technologies giving good quality products are expensive. The HT technology developed and described by the authors is cheaper and enables a high quality product to be obtained. The authors have shown that the quality of the received fuel components is influenced not only by the polymer waste processing technology, but also by the feedstock composition. The presented thermolysis technology not only enables more advanced recycling, but also gives the possibility of partial improvement of the product quality. A product with the best physico-chemical properties was obtained from a blend of PE:PP:PS used in the ratio 60:30:10. It was proved that diesel and petrol blends composed of a 5% v/v share of petrol and diesel fractions, obtained from thermolysis of plastics, meet the normative requirements of fuel quality standards. Full article
(This article belongs to the Special Issue Recovery of Solid Waste in Industrial and Environmental Processes)
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19 pages, 4161 KiB  
Article
Changes in Leachability of Selected Elements and Chemical Compounds in Residues from Municipal Waste Incineration Plants
by Barbara Bielowicz, Monika Chuchro, Radosław Jędrusiak and Katarzyna Wątor
Energies 2021, 14(3), 771; https://doi.org/10.3390/en14030771 - 01 Feb 2021
Cited by 1 | Viewed by 2030
Abstract
In Poland, special attention is focused on sustainable municipal waste management. As a result, new waste incineration plants are being planned. They are considered to be modern, ecologically friendly, and renewable energy sources. The waste from conventional incineration, which contains hazardous substances, must [...] Read more.
In Poland, special attention is focused on sustainable municipal waste management. As a result, new waste incineration plants are being planned. They are considered to be modern, ecologically friendly, and renewable energy sources. The waste from conventional incineration, which contains hazardous substances, must be disposed of in an appropriate manner. This study used advanced statistical tools, such as control charts, trend analysis, and time series analysis. The analysis was based on the leachability of selected elements and chemical compounds in incineration bottom ashes (IBAs) from the Waste to Energy Plant in Kraków, which were weathered for 2 weeks. The analysis was performed for 34 weeks. The obtained leachability results were compared with the leachability limit values of individual components. Based on the analysis of the control charts, it was found that in the case of selected samples, the leachability limit values for processing outside the plant using the R5 recovery process (LLVR5) values were exceeded. Seasonality analysis was performed using the autocorrelation function (ACF), the partial autocorrelation function (PACF), and the frequency analysis. Based on the obtained results, it was concluded that the leachability of elements and chemical compounds from waste does not confirm the occurrence of seasonality. It was found that from the exceedances of the LLVR5 mean that the two-week weathering is not sufficient and further studies should be carried out. The research methodology, which was presented on the example of the leachability of elements and compounds from IBA, can also be used for other waste analyses. Full article
(This article belongs to the Special Issue Recovery of Solid Waste in Industrial and Environmental Processes)
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