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Danish Experience in Developing an Integrated Approach to Separate Collection and Central Sorting of Valuable Recyclables from the MSW

The paper presents experience from several larger Danish municipalities/regions where a rethink of the current system of separate collection and subsequent marketing of recyclable materials parallel to biological and thermal treatment of the bio-fraction/residual fraction has resulted in a planned new approach to combined separate collection of the MSW followed by central sorting of recyclables thereby focussing on resource efficiency, affordability, citizens service and meeting sustainability targets using life cycle assessment and economic tools for optimising and informing the choice of integrated and multi-stringed recycling and waste management systems for MSW.

The paper presents the economic comparison of the two principle options of i) full source separation and separate collection or ii) co-mingled collection of recyclables, based on various applications of e.g. multi-compartment receptacles, multi compartment collection vehicles, underground containers, separate receptacles for source separated single waste streams, centralised after-sorting facilities etc. It further presents the outcome of Climate Assessment of the options and an assessment of the public service level.

The management of waste in Denmark is determined by the EU legislation and the Danish Waste Management Strategy as well as several pieces of Danish legislation that regulate several aspects of waste management, energy systems, agricultural by-products, acceptance criteria, design and permitting criteria for facilities etc. The key aspects of Danish waste management include:

• Municipalities are responsible for providing sufficient treatment and disposal capacity for waste and can direct all waste, except source separated industrial/commercial waste for recycling

• The 98 municipalities have formed approximately 45 inter-municipal waste management companies, often one municipality may be a member of 1-2 inter-municipal companies (i.e. separate companies for waste incineration, hazardous waste reception and disposal capacity or one that provides all of these services)

• There is a regulated preference for sale of heat and power to the local district heating system and the national grid, which provides a very significant revenue stream for waste incineration plants

• Differentiated waste taxes disfavour landfilling, favour recycling and tolerate incineration with high energy recovery

• Taxes on virgin aggregates, by-laws for demolition of old buildings and standards for aggregates and concrete produced from recycled building rubble favour recycling of
construction and demolition waste

Copyright: © TK Verlag - Fachverlag für Kreislaufwirtschaft
Source: Waste Management, Volume 3 (Oktober 2012)
Pages: 10
Price: € 0,00
Autor: M.Sc. Civ Eng Torben Kristiansen
M.Sc. Civ. Eng. Jens Bjørn Jakobsen

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