LiU Electronic Press
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Author:
Krook, Joakim (Linköping University, Department of Management and Engineering, Environmental Technology and Management) (Linköping University, The Institute of Technology)
Eklund, Mats (Linköping University, Department of Management and Engineering, Environmental Technology and Management) (Linköping University, The Institute of Technology)
Frändegård, Per (Linköping University, Department of Management and Engineering, Environmental Technology and Management) (Linköping University, The Institute of Technology)
Svensson, Niclas (Linköping University, Department of Management and Engineering, Environmental Technology and Management) (Linköping University, The Institute of Technology)
Carlsson, Annica (The Environmental Accounts, Statistics Sweden)
Title:
Urban mining: hibernating copper stocks in local power grids
Department:
Linköping University, Department of Management and Engineering, Environmental Technology and Management
Linköping University, The Institute of Technology
Publication type:
Article in journal (Refereed)
Language:
English
Publisher: Elsevier
Status:
Published
In:
Journal of Cleaner Production(ISSN 0959-6526)
Volume:
19
Issue:
9-10
Pages:
1052-1056
Year of publ.:
2011
URI:
urn:nbn:se:liu:diva-67254
Permanent link:
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-67254
ISI:
000290702800014
Subject category:
Other Environmental Engineering
SVEP category:
Environmental engineering
Keywords(en) :
Resource recovery, cables, metal stocks, hibernation, economic performance
Project:
Urban mining
Abstract(en) :

Large technical systems serving the everyday needs of people, such as water supply systems, power gridsor communication networks, are rich in accumulated metals. Over time, parts of these systems have beentaken out of use without the system infrastructure being removed from its original location. Such metalstocks in hibernation thus constitute potential resource reservoirs accessible for recovery. In this paper,obsolete stocks of copper situated in the local power grids of two Swedish cities are quantified. Emphasisis also on economic conditions for extracting such “hibernating” cables. The results show that on a percustomer basis, the two power grids contain similar amounts of copper, i.e. 0.04e0.05 tonnes persubscriber. However, the share of the copper stock that is in hibernation differs between the grids. In thelarger grid of Gothenburg, almost 20% of the copper accumulated in the grid is no longer in use, while theobsolete share does not exceed 5% in the city of Linköping. For managers of local power grids, recovery ofhibernating cables could be beneficial if integrated with other maintenance work on the grid. At thepresent price of copper, however, separate recovery of obsolete cables is not economically justified.

Note:
Original Publication:Joakim Krook, Mats Eklund, Per Frändegård, Niclas Svensson and Annica Carlsson, Urban mining: hibernating copper stocks in local power grids, 2011, Journal of Cleaner Production, (19), 9-10, 1052-1056.http://dx.doi.org/10.1016/j.jclepro.2011.01.015Copyright: Elsevier Science B.V., Amsterdam.http://www.elsevier.com/
Available from:
2011-04-06
Created:
2011-04-06
Last updated:
2011-06-16
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