A4 Conference proceedings

Construction and demolition waste streams from the material recovery point of view: a case study or the South Karelia region, Finland


Open Access publication

Publication Details
Authors: Liikanen Miia, Havukainen Jouni, Grönman Kaisa, Horttanainen Mika
Publication year: 2019
Language: English
Title of parent publication: WIT Transactions on Ecology and the Environment
Volume number: 231
Start page: 171
End page: 181
Number of pages: 11
ISBN: 978-1-78466-297-4
eISBN: 978-1-78466-298-1
ISSN: 1746-448X
JUFO-Level of this publication: 0
Open Access: Open Access publication

Abstract

The construction and demolition (C&D) waste industry is a major
generator of waste. In the European Union (EU), C&D waste accounts
for 25–30% of total waste generation. In Finland, the C&D industry
accounted for 14% of all waste generated in the country in 2015. The
main components of C&D waste are minerals (e.g. concrete, bricks and
ceramics), wood and metals, which offer high potential for material
recovery. As a result, the EU has set an ambitious material recovery
target for its member states: by 2020, 70% of generated non-hazardous
C&D waste shall be reused, recycled or recovered as material in
another manner. In 2014, the material recovery rate of C&D waste in
Finland was 58%. Further action is therefore needed in order to reach
this target. This calls for more accurate monitoring of C&D waste
streams and knowledge of the composition of mixed C&D waste. In this
study, a closer look is taken at C&D waste streams in the South
Karelia region of Finland. The objectives are to quantify regional
C&D waste streams, to estimate the composition of C&D waste
based on the reported waste streams and to assess the composition of
mixed C&D waste based on manually sorted C&D waste samples from
the South Karelia region. By achieving these objectives, the regional
material recovery potential of C&D waste can be estimated. In 2016,
the South Karelia region reported the generation of approximately
165,000 tonnes of C&D waste. This reflects approximately 14% of the
total waste generated in the region. The C&D waste generated
consisted of mineral waste (34%), metals (32%) and soil (23%).
Additionally, the share of mixed C&D waste (6%) as well as wood,
glass and plastic (4% combined) was notable. The manually analysed mixed
C&D waste samples indicate significant material recovery potential
as minerals, wood and plastic made up approximately 70% of the samples.


Last updated on 2019-04-02 at 15:11