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Mapping of Waste Products with Content of Polyurethanes
Summary and conclusions
The project Mapping of waste products with content of polyurethanes has been conducted by Rambøll Denmark in January 2004 to August 2004 in cooperation with The Danish Plastics Federation,
The Polyurethane Section.
The project has been financed by Program for Renere Produkter (The Cleaner Products Support Programme) and The Danish Plastics Federation.
The focus of the project has been:
- Description of national and European rules and legislation
- Description of expected future national and European rules and legislation
- Mapping of waste from production of products with polyurethanes in Denmark
- Mapping of waste products with polyurethane in Denmark
- Estimation of the costs connected to the treatment of polyurethane by Danish producers and waste treatment facilities
- Mapping of available technologies for recovery and recycling of polyurethanes.
Chapter 1 presents the objective and background for the project and describes the methods used. Mapping of production waste and waste products has mainly been based on interviews with a selected
group of companies, while the mapping of legislation and technologies for treatment are based on screening of different sources, like for instance Eurolex and Isopa Fact Sheets [2].
Chapter 2 presents current and future rules and legislation for treatment of waste products with polyurethane. The mapping has shown that it is only for refrigerators, freezers and pipes for district heating that
future rules are expected which will influence producers and waste treaters of products with polyurethane. These rules concern partly the waste treatment of product with ozone depleting substances and
partly the introduction of producer's responsibility for refrigerators and freezers.
Chapter 3 presents the mapping of production waste. The interviewed companies represent app. 70% of the annual consumption of polyurethane raw materials. The amount of production waste was in total
app. 15 % of the annual use of raw materials at the interviewed companies.
The study has shown that producers of flexible foam account for the largest use of raw material as well as amount of production waste, as shown in the table below. Not surprisingly, it is also in the group,
that recycling is most prevalent.
| |
Consumption of raw materials |
Production waste |
| Flexible foam |
22.200 t/year |
5.100 t/year |
| Rigid foam |
20.800 t/year |
1.150 t/year |
| Total |
43.000 t/year |
6.250 t/year |
Tabel 3 consumption of raw materials and production waste in denmark,
Chapter 4 presents the mapping of waste products. Interviews with 12 companies involved with collection, handling, recovery and recycling did not contribute with information, which could be used for the
assessment of the annual generated amounts of waste with content of polyurethanes. Hence, estimates have been made based on statistical information regarding specific product groups containing
polyurethanes.
| PUR-waste from end of life products |
| |
Year |
t/year |
| Automotive |
2004 |
3500 |
| Preinsulated pipes |
2004 |
950 |
| Domestic appliances |
2003 |
782 |
Tabel 4 pur-waste from selected end of life products
Finally, chapter 5 contains a description of available technologies for recovering and recycling operations for flexible as well as rigid polyurethane foam products.
Approximately 60% of the production waste is recycled, mainly by rebonding flexible foam production waste to new products, a minor part of the rigid foam production waste is converted to new raw
materials, whilst approximately 40% of the production waste is incinerated with energy recovery.
Fodnoter
[2] Isopa, European Diisocyanate & Polyol Producers Association
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Version 1.0 Maj 2005, © Miljøstyrelsen.
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