Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
The Use of High-Alloyed EAF Slag for the Neutralization of On-Site Produced Acidic Wastewater: The First Step Towards a Zero-Waste Stainless-Steel Production Process
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Process Science.ORCID iD: 0000-0002-8452-4295
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.ORCID iD: 0000-0001-9775-0382
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Processing.
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Applied Process Metallurgy.ORCID iD: 0000-0002-3606-6146
Show others and affiliations
2019 (English)In: Applied Sciences, ISSN 2076-3417, Vol. 9Article in journal (Refereed) Published
Abstract [en]

Recycling of steelmaking slags has well-established applications, such as their use in cement, asphalt, or fertilizer industries. Although in some cases, such as the electric arc furnace (EAF) high-alloyed stainless-steel production, the slag’s high metal content prevents its use in such applications. This forces companies to accumulate it as waste. Using concepts such dematerialization, waste management, industrial symbiosis, and circular economy, the article drafts a conceptual framework on the best route to solving the landfilling issue, aiming at a zero-waste process re-design. An experimental part follows, with an investigation of the use of landfill slag as a substitute of limestone for the neutralization of acidic wastewater, produced by the rinsing of steel after the pickling process. Neutralization of acidic wastewater with both lime and slag samples was performed with two different methods. Two out of four slag samples tested proved their possible use, reaching desired pH values compared to lime neutralizations. Moreover, the clean waters resulting from the neutralizations with the use of both lime and slag were tested. In terms of hazardous element concentrations, neutralization with slag yielded similar results to lime. The results of these trials show that slag is a potential substitute of lime for the neutralization of acidic wastewater.

Place, publisher, year, edition, pages
2019. Vol. 9
Keywords [en]
EAF slag; recycling; re-use; wastewater treatment; sustainable production; dematerialization; zero waste; circular economy
National Category
Metallurgy and Metallic Materials
Research subject
Materials Science and Engineering
Identifiers
URN: urn:nbn:se:kth:diva-260091DOI: 10.3390/app9193974OAI: oai:DiVA.org:kth-260091DiVA, id: diva2:1354590
Note

QC 20191001

Available from: 2019-09-25 Created: 2019-09-25 Last updated: 2019-10-01Bibliographically approved

Open Access in DiVA

The Use of High-Alloyed EAF Slag for the Neutralization of On-Site Produced Acidic Wastewater: The First Step Towards a Zero-Waste Stainless-Steel Production Process(4427 kB)8 downloads
File information
File name FULLTEXT01.pdfFile size 4427 kBChecksum SHA-512
35e1c51592a4f59ce80619e6e81e9b38e39bc4d97221e5546e1bb451650deaa064aeafa038a3c30347de95d7521021bba12c56831562b21103fb0579b942d192
Type fulltextMimetype application/pdf

Other links

Publisher's full texthttps://doi.org/10.3390/app9193974

Search in DiVA

By author/editor
De Colle, MattiaJönsson, PärKarasev, AndreyGauffin, AliciaRenman, AgnieszkaRenman, Gunno
By organisation
Materials Process ScienceMaterials ProcessingApplied Process MetallurgyWater and Environmental Engineering
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar
Total: 8 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 13 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf