Comparison of different collection systems for sorted household waste in Sweden |
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| Authors: | Dahlén Lisa Vukicevic Sanita Meijer Jan-Erik Lagerkvist Anders |
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| Institution: | 1. Division of Waste Science and Technology, Luleå University of Technology, SE - 971 87 Luleå, Sweden;2. Nordvästra Skånes Renhållnings AB, SE-251 89 Helsingborg, Sweden;1. Nazarbayev University, School of Engineering, Chemical Engineering Department, 53 Kabanbay batyr ave., Astana, Kazakhstan;2. National Technical University of Athens, School of Chemical Engineering, Unit of Environmental Science and Technology, 9, Heroon Polytechniou Street, Zographou Campus, 15773 Athens, Greece;1. Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, PR China;2. Values and Sustainability Research Group, University of Brighton, Watts Building, Lewes Road, Brighton BN2 4GJ, UK;3. School of Environment and Technology, University of Brighton, Cockcroft Building, Lewes Road, Brighton BN2 4GJ, UK;1. I.A.R., Department of Processing and Recycling, RWTH Aachen University, Wuellnerstrasse 2, 52062 Aachen, Germany;2. Food & Biobased Research, Wageningen University (WUR), Bornse Weilanden 9, 6700 AA Wageningen, Netherlands |
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| Abstract: | Composition and quantity per person of municipal solid waste (MSW) have been analyzed in six municipalities in southern Sweden with similar socio-economic conditions but with different collection systems. Samples of residual waste have been sorted, classified and weighed in 21 categories during 26 analyses that took place from 1998-2004. Collection data of the total waste flow, including source sorted recycling materials, in the same area have been compiled and compared. Multivariate data analyses have been applied. Weight-based billing reduced delivered amounts of residual household waste by 50%, but it is unknown to what extent improper material paths had developed. With curbside collection more metal, plastic and paper packaging was separated and left to recycling. When separate collection of biodegradables was included in the curbside system, the overall sorting of dry recyclables increased. The large uncertainty associated with waste composition analyses makes it difficult to draw strong conclusions regarding the effects on specific recyclables or the changes in the composition of the residual waste. |
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