Selective Disintegration–Milling to Obtain Metal-Rich Particle Fractions from E-Waste

Simple item page
dc.contributor.authorBlumbergs, Ervins
dc.contributor.authorSerga, Vera
dc.contributor.authorShishkin, Andrei
dc.contributor.authorGoljandin, Dmitri
dc.contributor.authorShishko, Andrej
dc.contributor.authorZemcenkovs, Vjaceslavs
dc.contributor.authorMarkus, Karlis
dc.contributor.authorBaronins, Janis
dc.contributor.authorPankratov, Vladimir
dc.date.accessioned2023-01-12T18:57:23Z
dc.date.available2023-01-12T18:57:23Z
dc.date.issued2022
dc.descriptionThis research was supported by ERDF project no. 1.1.1.1/20/A/139 “Development of sustainable recycling technology of electronic scrap for precious and non-ferrous metals extraction”. The project was co-financed by REACT-EU funding to mitigate the effects of the pandemic crisis. The article was published with the financial support from the Riga Technical University Research Support Fund. This research was also supported by the Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Program H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2. The authors would also like to mention the support from the “Innovation Grants for Maritime Students” performed at Latvian Maritime Academy (project no: 1.1.1.3/18/A/006, funded by the European Regional Development Fund—ERDF, Republic of Latvia).en_US
dc.description.abstractVarious metals and semiconductors containing printed circuit boards (PCBs) are abundant in any electronic device equipped with controlling and computing features. These devices inevitably constitute e-waste after the end of service life. The typical construction of PCBs includes mechanically and chemically resistive materials, which significantly reduce the reaction rate or even avoid accessing chemical reagents (dissolvents) to target metals. Additionally, the presence of relatively reactive polymers and compounds from PCBs requires high energy consumption and reactive supply due to the formation of undesirable and sometimes environmentally hazardous reaction products. Preliminarily milling PCBs into powder is a promising method for increasing the reaction rate and avoiding liquid and gaseous emissions. Unfortunately, current state-of-the-art milling methods also lead to the presence of significantly more reactive polymers still adhered to milled target metal particles. This paper aims to find a novel and double-step disintegration–milling approach that can provide the formation of metal-rich particle size fractions. The morphology, particle fraction sizes, bulk density, and metal content in produced particles were measured and compared. Research results show the highest bulk density (up to 6.8 g·cm−3) and total metal content (up to 95.2 wt.%) in finest sieved fractions after the one-step milling of PCBs. Therefore, about half of the tested metallic element concentrations are higher in the one-step milled specimen and with lower adhered plastics concentrations than in double-step milled samples. © 2022 by the authors.--//-- This is an open access article Blumbergs E., Serga V., Shishkin A., Goljandin D., Shishko A., Zemcenkovs V., Markus K., Baronins J., Pankratov V. "Selective Disintegration–Milling to Obtain Metal-Rich Particle Fractions from E-Waste" (2022) Metals, 12 (9), art. no. 1468, DOI: 10.3390/met12091468 published under the CC BY 4.0 licence.en_US
dc.description.sponsorshipLatvian Maritime Academy (project no: 1.1.1.3/18/A/006); ERDF project no. 1.1.1.1/20/A/139; REACT-EU; Institute of Solid-State Physics, University of Latvia has received funding from the European Union's Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-Teaming Phase 2 under grant agreement No. 739508, project CAMART2.en_US
dc.identifier.doi10.3390/met12091468
dc.identifier.issn2075-4701
dc.identifier.urihttps://www.mdpi.com/2075-4701/12/9/1468
dc.identifier.urihttps://dspace.lu.lv/dspace/handle/7/61747
dc.language.isoengen_US
dc.publisherMDPIen_US
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/739508/EU/Centre of Advanced Material Research and Technology Transfer/CAMART²en_US
dc.relation.ispartofseriesMetals;12 (9) 1468
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rights.licenseCC BY 4.0
dc.subjectResearch Subject Categories::NATURAL SCIENCES::Physicsen_US
dc.subjectdisintegrationen_US
dc.subjecte-wasteen_US
dc.subjecte-waste mechanical pretreatmenten_US
dc.subjecte-waste millingen_US
dc.subjectprecious metalsen_US
dc.subjectprinted circuit boardsen_US
dc.titleSelective Disintegration–Milling to Obtain Metal-Rich Particle Fractions from E-Wasteen_US
dc.typeinfo:eu-repo/semantics/articleen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Selective_DisintegrationMilling_to_Obtain_Metal_Blumbergs_etal_2022_Metals.pdf
Size:
5.37 MB
Format:
Adobe Portable Document Format
Description:
Article
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Zinātniskie raksti (CFI) / Scientific articles