An efficient large-scale recycling approach of particulate solid wastes is always accomplished according to the quality ofthe materials fed to the recycling plant and/or to any possible continuous and reliable control of the different streamsinside the processing plants. Processing technologies addressed to recover plastics need to be extremely powerful, since they must be relatively simple to be cost-effective, but also accurate enough to create high-purity products and able to valorize a substantial fraction of the plastic waste materials into useful products of consistent quality in order to beeconomical. On the other hand, the potential market for such technologies is large and the boost of environmentalregulations, and the oil price increase, has made many industries interested both in “general purpose” waste sortingtechnologies, as well as in developing more specialized sensing devices and/or inspection logics for a better qualityassessment of plastic products. In this perspective recycling strategies have to be developed taking into account somespecific aspects as i) mixtures complexity: the valuable material has to be extracted from the residue, ii) overallproduction: the profitability of plastic can be achieved only with mass production and iii) costs: low-cost sortingprocesses are required. In this paper new analytical strategies, based on hyperspectral imaging in the near infrared field (1000-1700 nm), have been investigated and set up in order to define sorting and/or quality control logics that could be profitably applied, at industrial plant level, for polyolefins recycling.

Application of NIR hyperspectral imaging for post-consumer polyolefins recycling / Serranti, Silvia; Gargiulo, Aldo; Bonifazi, Giuseppe. - STAMPA. - 8366:(2012), pp. 83660G-83660G-12. (Intervento presentato al convegno SPIE DEFENSE SECURITY AND SENSING 2012 tenutosi a Baltimore, Maryland, USA nel 23-27 April 2012) [10.1117/12.918556].

Application of NIR hyperspectral imaging for post-consumer polyolefins recycling

SERRANTI, Silvia;GARGIULO, ALDO;BONIFAZI, Giuseppe
2012

Abstract

An efficient large-scale recycling approach of particulate solid wastes is always accomplished according to the quality ofthe materials fed to the recycling plant and/or to any possible continuous and reliable control of the different streamsinside the processing plants. Processing technologies addressed to recover plastics need to be extremely powerful, since they must be relatively simple to be cost-effective, but also accurate enough to create high-purity products and able to valorize a substantial fraction of the plastic waste materials into useful products of consistent quality in order to beeconomical. On the other hand, the potential market for such technologies is large and the boost of environmentalregulations, and the oil price increase, has made many industries interested both in “general purpose” waste sortingtechnologies, as well as in developing more specialized sensing devices and/or inspection logics for a better qualityassessment of plastic products. In this perspective recycling strategies have to be developed taking into account somespecific aspects as i) mixtures complexity: the valuable material has to be extracted from the residue, ii) overallproduction: the profitability of plastic can be achieved only with mass production and iii) costs: low-cost sortingprocesses are required. In this paper new analytical strategies, based on hyperspectral imaging in the near infrared field (1000-1700 nm), have been investigated and set up in order to define sorting and/or quality control logics that could be profitably applied, at industrial plant level, for polyolefins recycling.
2012
SPIE DEFENSE SECURITY AND SENSING 2012
recycling; plastic solid wastes; hyperspectral imaging; polyolefins; quality control; inspection
04 Pubblicazione in atti di convegno::04b Atto di convegno in volume
Application of NIR hyperspectral imaging for post-consumer polyolefins recycling / Serranti, Silvia; Gargiulo, Aldo; Bonifazi, Giuseppe. - STAMPA. - 8366:(2012), pp. 83660G-83660G-12. (Intervento presentato al convegno SPIE DEFENSE SECURITY AND SENSING 2012 tenutosi a Baltimore, Maryland, USA nel 23-27 April 2012) [10.1117/12.918556].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/452161
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