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Recent Advances in Metals Removal/Recovery from Industrial Wastes

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Metals and Alloys".

Deadline for manuscript submissions: closed (10 May 2023) | Viewed by 3322

Special Issue Editor


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Guest Editor
Department of Metallurgical Engineering, School of Engineering, Pukyong National University, Busan 48513, Korea
Interests: recycling; extractive metallurgy; chemical metallurgy

Special Issue Information

Dear Colleagues,

Heavy metals are raw materials employed in numerous industrial processes. Their demand in the modern world is increasing exponentially owing to their extensive use in electronics and other manufactured products. However, heavy metals are one of the major pollutants in the industrial waste waters. Therefore, metal removal from wastewater and metal recovery from readily available products are important and timely concern. Various methods have been developed to achieve heavy metal removal from wastewater, such as ion exchange, reverse osmosis, chemical precipitation, solvent extraction, and membrane processes. However, these methods are expensive, tedious, and cause secondary pollution, which limits their industrial application. Many scientific studies have been conducted for the recovery of metals from wastes including sludges, slags, fly ashes, shales, spent catalysts, and spent liquors; industrial-scale treatments units have also been developed recently.

This Special Issue focuses on innovative trends in heavy metal removal/recovery using advanced materials, reagents, and technologies that respect environmental and economic requirements over the world. Additionally, composition and properties of used materials, experimental conditions, and mechanisms of the studied processes and efficiency are of interest.

Prof. Dr. Jei-Pil Wang
Guest Editor

Manuscript Submission Information

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Keywords

  • heavy metals
  • wastes
  • recovery
  • removal

Published Papers (1 paper)

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Review

23 pages, 1933 KiB  
Review
Advances in the Removal of Cr(III) from Spent Industrial Effluents—A Review
by Katarzyna Staszak, Izabela Kruszelnicka, Dobrochna Ginter-Kramarczyk, Wojciech Góra, Marek Baraniak, Grzegorz Lota and Magdalena Regel-Rosocka
Materials 2023, 16(1), 378; https://doi.org/10.3390/ma16010378 - 30 Dec 2022
Cited by 13 | Viewed by 2971
Abstract
The review presents advances in the removal of Cr(III) from the industrial effluents published in the last ten years. Although Cr(III) has low solubility and is less dangerous for the aquatic environment than Cr(VI), it cannot be released into the aquatic environment without [...] Read more.
The review presents advances in the removal of Cr(III) from the industrial effluents published in the last ten years. Although Cr(III) has low solubility and is less dangerous for the aquatic environment than Cr(VI), it cannot be released into the aquatic environment without limitations and its content in water should be restricted. The development of efficient techniques for the removal of Cr(III) is also a response to the problem of chromium wastewater containing Cr(VI) ions. Very often the first step in dealing with such wastewater is the reduction in chromium content. In some cases, removal of Cr(III) from wastewaters is an important step for pretreatment of solutions to prepare them for subsequent recovery of other metals. In the review, hydrometallurgical operations for Cr(III) removal are presented, including examples of Cr(III) recovery from real industrial effluents with precipitation, adsorption, ion exchange, extraction, membrane techniques, microbial-enhanced techniques, electrochemical methods. The advantages and disadvantages of the operations mentioned are also presented. Finally, perspectives for the future in line with circular economy and low-environmental impact are briefly discussed. Full article
(This article belongs to the Special Issue Recent Advances in Metals Removal/Recovery from Industrial Wastes)
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