Identificación y separación de polímeros y plásticos procedentes de residuos sólidos urbanos para su reciclado
- Autores: Edorta Larrauri, R. Miguel, R. Noll, R. Sattmann, S. Couris, A. Hatziapostolou
- Localización: Residuos: Revista técnica, ISSN 1131-9526, Año nº 7, Nº 36, 1997, págs. 71-77
- Idioma: español
- Texto completo no disponible (Saber más ...)
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Resumen
Laser-induced breakdown spectroscopy (LIBS) is investigated for the dentification of the polymers PE. PP, PET and PVC. About 10 spectral features are measured, e.g. spectral lines of carbon, hydrogen and chlorine and emission bands of C2.The intensities are evaluated with multivariate statistical analysis and neural networks. Identification accuracies of =99 % for PVC and PET are achieved. The measuring me for an identification is less than 100μs.
An autofocus system for the focusing of the laser beam onto bottles with varying geometry and for plasma imaging has been assembled and tested with coloured samples.
A handling device for the singularization, transport and sorting of waste bottles has been assembled, allowing sorting rates of up to 3 bottles/s. An assessment for the feasibility of industrial-scale sorting machines is given.
