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FLOAT-SINK SEPARATION OF CONSTRUCTION AND DEMOLITION WASTE FINES

  • Erik Marklund - Waste science & technology, Luleå University of Technology, Sweden
  • Lale Andreas - Waste science & technology, Luleå University of Technology, Sweden
  • Anders Lagerkvist - Waste science & technology, Luleå University of Technology, Sweden

DOI 10.31025/2611-4135/2018.13648

Released under CC BY-NC-ND

Copyright: © 2018 Cisa Publisher

Abstract

Landfilling and waste incineration are two major waste management options. However, due to their carbon content, some wastes may be unsuitable for these systems. Therefore, methods capable of removing organic carbon from wastes should be identified. One of these wastes is represented by construction and demolition fines. In this paper, we investigate the use of water in separating the waste by density, to verify the suitability of this method in the separation of carbon-containing materials, both in lab and field scale tests. The results obtained show that half of the carbon (measured as volatile solids) can be separated. However, this method fails to reliably produce a sink fraction suitable for landfilling, as it continues to be characterized by an excessively high organic material content.

Keywords

Editorial History

  • Received: 22 Feb 2018
  • Revised: 04 May 2018
  • Accepted: 25 Jun 2018
  • Available online: 04 Jul 2018

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