Abstract
European Union has set a 70 % recycling goal for
construction and demolition waste by 2020. In Finland,
for example, 40 % of this waste is wood. The purpose of
this study was to test the technical feasibility of
pulping contaminated wood waste from the construction
industry and using such pulps for fibre-based products
outside of the conventional paper industry. It was found
out that both chemical and thermo-mechanical pulping, and
mechanical milling can be used for pulping contaminated
wood waste chips received from construction waste
treatment plant. The resulting pulps were then utilized
successfully to prepare product demonstrations (wood
fibre filaments and thick foam formed panel structures).
There are no technical restraints for pulping
contaminated construction wood waste, and the resulting
pulp quality depends on the shape and size of the
woodchips, dry content, wood species and type of
contaminants. Although wood treated with copper
preservatives can set special safety and process
requirements, it does not necessarily impair the key
properties of the final product.
| Original language | English |
|---|---|
| Pages (from-to) | 615-624 |
| Journal | Waste and Biomass Valorization |
| Volume | 7 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2016 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- construction
- demolition
- pulp fibre filament
- panel
- pulping
- wood waste
