« Previous AbstractDecoding attraction: Improving vine weevil monitoring by exploiting key sensory cues    Next Abstract"Milling overrides cultivar, leavening agent and baking mode on chemical and rheological traits and sensory perception of durum wheat breads" »

Waste Manag

Title:		End-of-life of silicon PV panels: A sustainable materials recovery process
Author(s):		Fiandra V; Sannino L; Andreozzi C; Graditi G;
Address:		"ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development - Research Centre ENEA Portici, Naples, Italy. Electronic address: valeria.fiandra@enea.it. ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development - Research Centre ENEA Portici, Naples, Italy"
Journal Title:		Waste Manag
Year:		2019
Volume:		20181126
Issue:
Page Number:		91 - 101
DOI:		10.1016/j.wasman.2018.11.035
ISSN/ISBN:		1879-2456 (Electronic) 0956-053X (Linking)
Abstract:		"In this paper, the management of end-of-life PV modules based on an advanced eco-sustainable process has been presented and discussed. The thermal removal of the polymeric compounds contained in c-Si PV modules has been investigated to separate and recover Si, Ag, Cu, Al and glass. A two-step thermal process has been employed. In the first step, the rear polymeric layer has been removed without emissions of dangerous fluorinated substances. In the second step, the remaining polymers have been completely removed with low volatile organic compounds (VOCs) emissions. The polymers degradation has been studied at combustion equivalent ratios Phi varying from 0.5 to 2 and at 500?ª+ degrees C. The materials recovery has been evaluated from an environmental point of view and optimized by considering the energy cost, through the identification of the best operating conditions, in terms of temperature, time, atmosphere and gas flow. One hour of heat treatment and a slightly oxidizing atmosphere have been enabled to separate and recover the different materials of the module. The elemental compositions of the PV sample and the residue condensed organic products have been determined. The gaseous degradation products have been characterized by gas chromatographic analysis (GC)"
Keywords:		Atmosphere Humans Silicon Temperature *Volatile Organic Compounds Energy consumption Photovoltaic module Polymer removal Recycling Thermal treatment;
Notes:		"MedlineFiandra, Valeria Sannino, Lucio Andreozzi, Concetta Graditi, Giorgio eng 2019/01/30 Waste Manag. 2019 Feb 1; 84:91-101. doi: 10.1016/j.wasman.2018.11.035. Epub 2018 Nov 26"