Simultaneous recycling of waste solar panels and treatment of persistent organic compounds via supercritical water technology

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dc.creatorPereira, Mariana Bisinotto
dc.creatorSouza, Guilherme Botelho Meireles de
dc.creatorEspinosa, Denise Crocce Romano
dc.creatorPavão, Leandro Vitor
dc.creatorAlonso, Christian Gonçalves
dc.creatorCabral, Vladimir Ferreira
dc.date.accessioned2023-09-06T14:59:57Z
dc.date.available2023-09-06T14:59:57Z
dc.date.issued2023
dc.description.abstractThe study addresses the application of the supercritical water technology in the simultaneous recycling of obsolete solar panels and treatment of persistent organic compounds. The obsolete solar panels samples were characterized by TEM-EDS, SEM, TG-DTA, XRD, WDXRF, MP-AES and elemental analysis. Initially, the optimized parameters for the degradation of solid organic polymers present in residual solar panels via oxidation in supercritical water were defined by an experimental design. Under optimized conditions, 550 °C, reaction time of 60 min, volumetric flow rate of 10 mL min−1 and hydrogen peroxide as oxidant agent, real laboratory liquid wastewater was used as feed solution to achieve 99.6% of polymers degradation. After the reaction, the solid product free of organic matter was recovered and characterized. On average, a metal recovery efficiency of 76% was observed. Metals such as aluminum, magnesium, copper, and silver, that make up most of the metallic fraction, were identified. Only H2, N2 and CO2 were observed in the gaseous fraction. Then, initial data on the treatment of the liquid decomposition by-products, generated during ScW processing, were reported. A total organic carbon reduction of 99.9% was achieved after the subsequential treatment via supercritical water oxidation using the same experimental apparatus. Finally, insights on the scale-up, energy integration and implementation costs of a ScW solid processing industrial unit were presented using the Aspen Plus V9 software.pt_BR
dc.identifier.citationPEREIRA, Mariana Bisinotto et al. Simultaneous recycling of waste solar panels and treatment of persistent organic compounds via supercritical water technology. Environmental Pollution, Amsterdam, v. 335, e122331, 2023. DOI: 10.1016/j.envpol.2023.122331. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0269749123013337?via%3Dihub. Acesso em: 29 ago. 2023.pt_BR
dc.identifier.doi10.1016/j.envpol.2023.122331
dc.identifier.issn0269-7491
dc.identifier.issne- 1873-6424
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0269749123013337?via%3Dihub
dc.language.isoengpt_BR
dc.publisher.countryHolandapt_BR
dc.publisher.departmentInstituto de Química - IQ (RMG)pt_BR
dc.rightsAcesso Restritopt_BR
dc.subjectSupercritical treatmentpt_BR
dc.subjectOrganic degradationpt_BR
dc.subjectDepolymerizationpt_BR
dc.subjectSilicon solar panelpt_BR
dc.subjectUrban miningpt_BR
dc.titleSimultaneous recycling of waste solar panels and treatment of persistent organic compounds via supercritical water technologypt_BR
dc.typeArtigopt_BR

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