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Ettlinger, Verena, 2020. Cost-benefit analysis of historical copper slags and tailings : a case study from Boliden Rönnskär Smelter in Skelleftehamn. Second cycle, A2E. Uppsala: SLU, Dept. of Economics

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Abstract

This thesis aims to investigate different treatment scenarios for the potential clean-up of Rönnskär’s historical copper slags and tailing sands. Both materials are known to contain potential toxic elements that can put the environment and humans at risk. Between 1930 and 1966, Rönnskär smelter had been using these by-products from enrichment and pyrometallurgical processing as land-fillings for the extension of its industrial area, located on an Island nearby Skellefteå (Sweden). The examined scenarios, namely Rönnskär, Boliden Area and Aitik, are all equipped with suitable technology but differ in their treatment methods as well as location along with required transportation. A social cost-benefit analysis is used to determine the net-present values of each scenario, based on economic, social and environmental input factors. All results state Boliden Area as the most beneficial scenario regarding the treatment of Rönnkär’s historical copper slags and tailings, showing only small deviations when purely focusing on environmental costs. Based on the remediation of 400 000t copper slags and tailings, this study’s calculations show a net present value of -772 kr/t copper slag and -530 kr/t tailings for Boliden Area. However, a total clean-up of the existing 5.5 Mton copper slag and
1.8 Mton tailings is currently impossible which is why further research and investigation is needed.

Main title:Cost-benefit analysis of historical copper slags and tailings
Subtitle:a case study from Boliden Rönnskär Smelter in Skelleftehamn
Authors:Ettlinger, Verena
Supervisor:Kyriakopoulou, Efthymia
Examiner:Rommel, Jens
Series:Examensarbete / SLU, Institutionen för ekonomi
Volume/Sequential designation:1234
Year of Publication:2020
Level and depth descriptor:Second cycle, A2E
Student's programme affiliation:NM005 Environmental Economics and Management - Master's Programme 120 HEC
Supervising department:(NL, NJ) > Dept. of Economics
Keywords:copper slag, cost-benefit analysis (CBA), mining, remediation work, Rönnskär, smelter, tail
URN:NBN:urn:nbn:se:slu:epsilon-s-15870
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-15870
Subjects:Economics and management
Language:English
Deposited On:06 Aug 2020 10:22
Metadata Last Modified:07 Aug 2020 01:01

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