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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 754 pages |
| ISBN: | 978-0-9879917-3-7 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Urban Mining Of MSWI Bottom Ashes
Peter Rem1;1DELFT UNIVERSITY OF TECHNOLOGY, Delft, Netherlands;
Type of Paper: Invite
Id Paper: 400
Topic: 12
Abstract:
The annual production of bottom ash resulting from the incineration of municipal solid waste in Europe includes about 400,000 tons of metallic aluminum and 200,000 tons of heavy non-ferrous metals, such as copper, zinc and lead, and even traces of precious metals. The efficient recovery of this non-ferrous metal resource has been subject of several innovative research and development programs, which are now showing their results in the field. Solutions vary from improvements in state-of-the-art eddy current separation technology, to advanced dry or wet classification to remove the fine mineral fraction prior to metal separation, and even to adaptation of the incinerator itself. The paper presents a review of the various technologies in terms of costs, revenues, health issues and applications of the mineral residue. Field data show that efficient recycling has a significant impact on value recovery as well as on non-ferrous metal recycling rates, even simple measures producing 25% more metals from the ash.