Video clip left: STADLER domestic waste sorting plant
Location: Spain (Streaming video 30,5 MB)
Plant description
Up to 50 % of the domestic waste in big cities end up in the wrong dustbins. There you can find residues with the pre-sorted light packagings and contrariwise a lot of plastics are found in the household waste. Our contemporary sorting technology achieves very good sorting results to fractionate domestic waste into different potential recyclables. Here the question comes up whether it is still necessary to collect waste separately.
In Spain for example STADLER has put into operation new conceptions of complete waste sorting plants which provide for both, the treatment of domistic refuste and the sorting of light packagings on a second line (see video clip).
The material is to be sorted into different fractions by means of screening drums, magnetic and ballistic separators, near-infrared technology and/or manual sorting. All potential recyclables sorted out are passed on the further utilisation.
The screened organical material is processed into renewable energy by the means of further treatment technology, which is to be provided from special suppliers.
Biogas is being obtained by the process of biomethanisation. A heat block power station converts the biogas into electricity. The remaining organics are composted.
Conceptual reasons
The residual waste is containing a high proportion
of potential recyclables, which are passed to incineration unused. If these residues would be sorted, a lot of recources could be taken out.
Due to the production of renewable energies by biological waste treatment, an optimal efficiency of the used technology is guaranteed.
