Abstract |
The aim of this study was to use life cycle analysis for a couple of packaging materials, to investigate if an increased degree of materials recovery is of positive environmental value. Calculations have been performed for packagings of aluminium, steel sheet, plastic, and paper. The results of the life cycle analysis has led to the following conclusions: * The technical possibilities to recycle aluminium and steel packagings are judged good. Recycling leads to decreased energy consumption. * The possibility to recycle plastic packaging are fairly good for pure plastic fractions, but limited if the collected material consists of mixed plastics. A high degree of recycling means environmental advantages through the saving of non-renewable resources. * The technical possibilities to recycle a mixed fraction of paper and cardboard are good. Increased recycling do not lead to any substantial environmental gains. 38 refs, 13 figs, 78 tabs |