Decision support tool for collection and treatment of source-sorted organic municipal solid waste

image of Biowaste

Waste management strategies focus on waste minimization and on better utilisation of the resources in the waste in all the Nordic countries. Better handling of municipal waste is in focus, as it is a significant waste fraction with many unused potentials. A tool for support of local decisions about handling of the municipal organic solid waste has been developed in order to cover the spectrum of technological solutions available today and further include the local conditions and priorities in the Nordic countries. The tool focuses on the most important environmental aspects without losing the national or global perspective. Further the tool is kept simple in order to secure that the necessary information can be provided locally.



General Description

The overall model structure is shown in Figure 1. Here the physical components of the model are shown. The starting point is the organic waste and the collection system. The pre-treatment is necessary in order to handle any missortings and to remove any plastic bags used in the collection. Further the waste is prepared for further treatment. Two main options exist for handling of the waste – composting and biogasification. Further combined processes seem to appear and are included as well. After the biological treatment products such as compost or gas will be utilised and residues from the treatment have to be incinerated or used for agricultural purposes.


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