Special Issue "Application of Pyro- and Hydrometallurgical Processes in Recycling of Industrial Waste"

A special issue of Processes (ISSN 2227-9717). This special issue belongs to the section "Green Processes".

Deadline for manuscript submissions: 20 March 2021.

Special Issue Editors

Prof. Dr. Luigi Piga
Guest Editor
Department of chemical Engineering, Materials, Environment, Sapienza University of Rome, Italy
Interests: Reuse and recycle of industrial waste; recovery of secondary materials from spent batteries, fluorescent lamps, printed circuit boards (PCB) and photovoltaic panels; Chemical and physical methods of separation; Sampling and soil washing of contaminated soils.
Dr. Nicolò Maria Ippolito
Guest Editor
Department of chemical Engineering, Materials, Environment, Sapienza University of Rome, Italy.
Interests: expert in the study of hydrometallurgical treatments aimed at the development of processes for the recovery of critical, precious and base metals from Waste Electrical and Electronic Equipment (WEEE) and other industrial waste. Knowledge of the application of analytical techniques for waste characterization.
Dr. Valentina Innocenzi
Guest Editor
Department of Industrial and Information Engineering and Economics, University of L'Aquila, Italy.
Interests: expert in the development of the hydrometallurgical processes for the treatment and recycling of industrial and e-waste aimed for metals and rare earths recovery; other skills on the industrial wastewater treatment with zero liquid discharge approach.
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

In order to boost the development of the circular economy, research efforts have for several years actively sought to reuse urban and industrial waste and to recover the valuable materials contained in them. In the European Union, the reuse/recycling of the materials coming from municipal solid wastes should reach 55% by 2025 and 65% by 2035, with respect to all products placed on the market. The achievement of those goals will allow saving primary raw materials taken from natural resources and limiting emissions, as the energy needed to produce secondary materials from secondary raw materials (the wastes) is much less than the energy spent to produce the same amount of materials from primary raw materials. Secondary materials can be recovered from end-of-life commercial products such as, but not only, spent fluorescent lamps (rare earths), any kind of spent batteries (valuable metals), printed circuit boards (precious metals), and photovoltaic panels (metals and bulky materials like plastics and glass). The list could also include wastes from the mining and quarrying, pulp paper, and wood and glass recovery industries, and other hazardous or non-hazardous wastes coming from within manufacturing processes aimed at producing final products for the market.

This Special Issue on “Application of Pyro- and Hydrometallurgical Processes in Recycling of Industrial Waste” aims to collect high-quality research studies addressing challenges on the broad area of processes aimed at reusing industrial waste or recycling both valuable and bulky materials that would otherwise be landfilled or incinerated at best.

Prof. Dr. Luigi Piga
Dr. Nicolò Maria Ippolito
Dr. Valentina Innocenzi
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 papers will be 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. Processes is an international peer-reviewed open access monthly 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 1500 CHF (Swiss Francs). Please note that for papers submitted after 31 December 2020 an APC of 2000 CHF applies. 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.


  • Reuse of industrial waste
  • Recycle of industrial waste
  • Recovery of secondary materials
  • Waste processing
  • Pyro- and hydrometallurgical methods of separation
  • Physical methods of separation
  • Materials
  • Secondary raw materials
  • Ferrous metals
  • Non-ferrous metals

Published Papers

This special issue is now open for submission.
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