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The Mass and Energy Recovery from Secondary Raw Materials

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

Deadline for manuscript submissions: closed (20 April 2022) | Viewed by 2352

Special Issue Editors


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Guest Editor
Eco Recycling Srl, Via di Vannina 88/94, 00156 Rome, Italy
Interests: process simulation for Li-MnO2 primary battery recycling: cryomechanical and hydrometallurgical treatments at pilot scale

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Guest Editor
École des Mines de Saint-Étienne, 42023 Saint-Étienne, France
Interests: process engineering; recycling and recovery of industrial waste (circular economy); rehabilitation of industrial wastelands; polluted sites; biotechnology; Precision agriculture; geo-resources
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Guest Editor
Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
Interests: nanowires; electrodeposition; template electrodeposition; lithium-ion battery recycling; supercapacitor; pseudocapacitor; lithium-ion batteries; cobalt anodes; anodes; anode; cobalt; cobalt nanostructures; metal recovery

Special Issue Information

Dear Colleagues,

In the view of a circular economy, where minimization of the use of primary resources, creation of waste, and reduction in pollution and carbon emissions are matter of relevant importance, mass and energy recovery from secondary raw materials represent an obligatory path to create carbon-neutral closed-loop production systems. Additionally, due to the never-ending need for an increase in raw materials to sustain the production of everyday life goods, the development of new innovative processes that allow the exploitation of raw materials from secondary products or primary raw material with low material content (e.g., mine tailings) is required.

The Special Issue invites original research papers to address new processes for the recovery of mass and energy from secondary raw materials, such as spent catalysts, photovoltaic panels, lithium-ion batteries, consumer electronics, wastes, and mine tailings. Additionally, authors are encouraged to submit review papers addressing the state of the art and recent advancements in these areas, providing useful guidelines for future research directions.

Topics of interest include but are not limited to:

  • Reclaiming raw materials from spent products, buildings, and waste (urban mining);
  • Materials recovery from end-of-life lithium-ion batteries;
  • Recovery of raw materials from mining waste, tailings, and landfills.

Prof. Luigi Toro
Dr. Essaid Bilal
Dr. Schiavi Pier Giorgio
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

  • recycling
  • secondary raw materials
  • closed-loop processes
  • circular economy
  • waste as resource

Published Papers (1 paper)

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Research

14 pages, 1818 KiB  
Article
Exploiting Olive Mill Wastewater via Thermal Conversion of the Organic Matter into Gaseous Biofuel—A Case Study
by Alfredo Crialesi, Barbara Mazzarotta, Marco Santalucia, Fabrizio Di Caprio, Alfonso Pozio, Alessia Santucci and Luca Farina
Energies 2022, 15(8), 2901; https://doi.org/10.3390/en15082901 - 15 Apr 2022
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Abstract
Olive oil is one excellence of the Italian food industry: around 300 kt yr−1 are produced, creating roughly the same amount of olive mill wastewater (OMW) to be disposed of. The present work describes a process to exploit OMW by converting its [...] Read more.
Olive oil is one excellence of the Italian food industry: around 300 kt yr−1 are produced, creating roughly the same amount of olive mill wastewater (OMW) to be disposed of. The present work describes a process to exploit OMW by converting its organic compounds to valuable gaseous biofuel. A sample OMW was characterized (COD, TOC, solids, and polyphenols) and submitted to membrane filtration tests to concentrate the organic compounds. Based on the results of the experiments, a treatment process was outlined: the retentate streams from microfiltration and ultrafiltration steps were fed to a cracking and a steam reforming reactor, respectively; the obtained syngas streams were then mixed and sent to a methanation reactor. The process was simulated with Aspen Plus (AspenTech©) software, assessing operating conditions and streams compositions: the final biofuel is around 81 mol.% methane, 4 mol.% hydrogen, and 11 mol.% carbon dioxide. The permeate stream cannot be directly disposed of, but both its amount and its polluting charge are greatly reduced. The heat needed by the process, mainly due to the endothermic reactions, can be obtained by burning an amount of olive pomaces, roughly corresponding to one-third of the amount left by olive treatments giving rise to the processed OMW feed. Full article
(This article belongs to the Special Issue The Mass and Energy Recovery from Secondary Raw Materials)
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