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  1. AU="Botelho Meireles de Souza, Guilherme"
  2. AU="Gong, Yu-Qing"
  3. AU="Eisch, J"
  4. AU=De Vito Eduardo L
  5. AU="Lowsky, Robert"
  6. AU="Lindner, M."
  7. AU="Mugnai, Giacomo"
  8. AU="Chollet-Krugler, Marylène"
  9. AU="Firsanov, Denis"
  10. AU="Jo, Dong-Gyu"
  11. AU="Greenland, John R"
  12. AU="J Natale"
  13. AU="Drost, Carolin Christina"
  14. AU="Silvera, Risset"
  15. AU="Zgubič, M"
  16. AU="Russo, Rosita"
  17. AU="Ruiz-Ortega, Marta"
  18. AU="T Talbot"
  19. AU="Emoto, Kasey C"
  20. AU="Moos, W H" AU="Moos, W H"
  21. AU=Singh Sweta AU=Singh Sweta
  22. AU="Pimentel, Mauricio"
  23. AU="Kim, Ji Hee"
  24. AU=Ross Jeffrey S
  25. AU=Malhotra Atul
  26. AU="Tiesler, Carla M T"
  27. AU="Merighi, Adalberto" AU="Merighi, Adalberto"

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  1. Artikel ; Online: Valorization of e-waste via supercritical water technology: An approach for obsolete mobile phones.

    Botelho Meireles de Souza, Guilherme / Bisinotto Pereira, Mariana / Clementino Mourão, Lucas / Gonçalves Alonso, Christian / Jegatheesan, Veeriah / Cardozo-Filho, Lucio

    Chemosphere

    2023  Band 337, Seite(n) 139343

    Abstract: The improper handling of electronic waste has not only severe environmental impacts but also results in the loss of high economic potential. To address this issue, the use of supercritical water (ScW) technology for the eco-friendly processing of waste ... ...

    Abstract The improper handling of electronic waste has not only severe environmental impacts but also results in the loss of high economic potential. To address this issue, the use of supercritical water (ScW) technology for the eco-friendly processing of waste printed circuit boards (WPCBs) obtained from obsolete mobile phones has been explored in this study. The WPCBs were characterized via MP-AES, WDXRF, TG/DTA, CHNS elemental analysis, SEM and XRD. A L9 Taguchi orthogonal array design was employed to evaluate the impact of four independent variables on the organic degradation rate (OD
    Mesh-Begriff(e) Water/analysis ; Electronic Waste/analysis ; Hydrogen Peroxide/analysis ; Gases/analysis ; Cell Phone ; Oxidants ; Recycling/methods
    Chemische Substanzen Water (059QF0KO0R) ; Hydrogen Peroxide (BBX060AN9V) ; Gases ; Oxidants
    Sprache Englisch
    Erscheinungsdatum 2023-06-27
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139343
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

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    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 2540: Hefte anzeigen Standort:
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    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
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  2. Artikel ; Online: Simultaneous recycling of waste solar panels and treatment of persistent organic compounds via supercritical water technology

    Pereira, Mariana Bisinotto / Botelho Meireles de Souza, Guilherme / Espinosa, Denise Crocce Romano / Pavão, Leandro Vitor / Alonso, Christian Gonçalves / Cabral, Vladimir Ferreira / Cardozo-Filho, Lucio

    Environmental Pollution. 2023 Oct., v. 335 p.122331-

    2023  

    Abstract: The 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, ... ...

    Abstract The 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.
    Schlagwörter aluminum ; carbon dioxide ; computer software ; copper ; energy ; experimental design ; hydrogen peroxide ; liquids ; magnesium ; oxidants ; oxidation ; pollution ; silver ; total organic carbon ; wastewater ; Supercritical treatment ; Organic degradation ; Depolymerization ; Silicon solar panel ; Urban mining
    Sprache Englisch
    Erscheinungsverlauf 2023-10
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel ; Online
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2023.122331
    Datenquelle NAL Katalog (AGRICOLA)

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    Verfügbar in ZB MED Bonn

    Z 4136: Hefte anzeigen

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  3. Artikel ; Online: Valorization of e-waste via supercritical water technology: An approach for obsolete mobile phones

    Botelho Meireles de Souza, Guilherme / Bisinotto Pereira, Mariana / Clementino Mourão, Lucas / Gonçalves Alonso, Christian / Jegatheesan, Veeriah / Cardozo-Filho, Lucio

    Chemosphere. 2023 Oct., v. 337 p.139343-

    2023  

    Abstract: The improper handling of electronic waste has not only severe environmental impacts but also results in the loss of high economic potential. To address this issue, the use of supercritical water (ScW) technology for the eco-friendly processing of waste ... ...

    Abstract The improper handling of electronic waste has not only severe environmental impacts but also results in the loss of high economic potential. To address this issue, the use of supercritical water (ScW) technology for the eco-friendly processing of waste printed circuit boards (WPCBs) obtained from obsolete mobile phones has been explored in this study. The WPCBs were characterized via MP-AES, WDXRF, TG/DTA, CHNS elemental analysis, SEM and XRD. A L9 Taguchi orthogonal array design was employed to evaluate the impact of four independent variables on the organic degradation rate (ODR) of the system. After optimization, an ODR of 98.4% was achieved at a temperature of 600 °C, a reaction time of 50 min, a flowrate of 7 mL min⁻¹, and the absence of an oxidizing agent. The removal of the organic content from the WPCBs resulted in an increase in the metal concentration, with up to 92.6% of the metal content being efficiently recovered. During the ScW process, the decomposition by-products were continuously removed from the reactor system through the liquid or gaseous outputs. The liquid fraction, which was composed of phenol derivatives, was treated using the same experimental apparatus, achieving a total organic carbon reduction of 99.2% at 600 °C using H₂O₂ as the oxidizing agent. The gaseous fraction was found to contain hydrogen, methane, CO₂, and CO as the major components. Finally, the addition of co-solvents, namely ethanol and glycerol, enhanced the production of combustible gases during the ScW processing of WPCBs.
    Schlagwörter carbon dioxide ; electronic wastes ; ethanol ; experimental design ; glycerol ; hydrogen ; liquids ; methane ; phenol ; temperature ; total organic carbon ; e-waste ; Depolymerization ; Metal recovery ; Urban mining ; Mobile phone ; Supercritical water
    Sprache Englisch
    Erscheinungsverlauf 2023-10
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel ; Online
    ZDB-ID 120089-6
    ISSN 1879-1298 ; 0045-6535 ; 0366-7111
    ISSN (online) 1879-1298
    ISSN 0045-6535 ; 0366-7111
    DOI 10.1016/j.chemosphere.2023.139343
    Datenquelle NAL Katalog (AGRICOLA)

    Volltext online

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    Verfügbar in ZB MED Köln/Königswinter

    Zs.A 2540: Hefte anzeigen Standort:
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    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
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  4. Artikel: Management of waste printed circuit boards via supercritical water technology

    Botelho Meireles de Souza, Guilherme / Bisinotto Pereira, Mariana / Francisco dos Santos, Lucas / Gonçalves Alonso, Christian / Jegatheesan, Veeriah / Cardozo-Filho, Lucio

    Journal of cleaner production. 2022 July 15,

    2022  

    Abstract: In this study, the application of the supercritical water technology on the management of waste printed circuit boards (PCBs) obtained from small information technology (IT) and communication equipment was conducted. Initially, an extensive recycling- ... ...

    Abstract In this study, the application of the supercritical water technology on the management of waste printed circuit boards (PCBs) obtained from small information technology (IT) and communication equipment was conducted. Initially, an extensive recycling-oriented characterization of waste printed circuit boards was conducted through a combination of several physicochemical analyzes such as MP-AES, XRF, TG/DTA, CHNS elemental analysis, SEM and XRD. Afterwards, at supercritical conditions of water (Tc > 374.29 °C and Pc > 22.089 MPa), the optimal conditions for the degradation of the organic polymers present in the waste PCBs were defined by a response surface methodology. A complete organic degradation rate (ODR) was achieved at 600 °C, reaction time of 60 min, waste PCBs load of 15 g and flow-rate of 5 mL min⁻¹. After the removal of the organic polymers, the metals were liberated, and the metal recovery efficiency (MRE) reached values higher than 90% at all evaluated conditions. Then, initial insights on the subsequent treatment of the liquid decomposition by-products generated during the supercritical water (ScW) processing of waste PCBs were provided. A total organic carbon reduction of 99.88% was achieved via the ScW oxidation process using the same experimental apparatus. The treated solution was successfully re-used in the ScW processing of waste PCBs instead of clean water. Moreover, hydrogen, methane, CO₂, and CO were identified as the major gaseous products associated to the supercritical water treatment of waste PCBs. Finally, a novel strategy to enhance the production of combustible gases, through the addition of ethanol and glycerol, and increase the economic feasibility of the supercritical water processing of waste PCBs was proposed.
    Schlagwörter carbon dioxide ; economic feasibility ; ethanol ; glycerol ; hydrogen ; information technology ; liquids ; methane ; oxidation ; response surface methodology ; total organic carbon ; water treatment
    Sprache Englisch
    Erscheinungsverlauf 2022-0715
    Erscheinungsort Elsevier Ltd
    Dokumenttyp Artikel
    Anmerkung Pre-press version
    ISSN 0959-6526
    DOI 10.1016/j.jclepro.2022.133198
    Datenquelle NAL Katalog (AGRICOLA)

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  5. Artikel ; Online: Simultaneous recycling of waste solar panels and treatment of persistent organic compounds via supercritical water technology.

    Pereira, Mariana Bisinotto / Botelho Meireles de Souza, Guilherme / Romano Espinosa, Denise Crocce / Pavão, Leandro Vitor / Alonso, Christian Gonçalves / Cabral, Vladimir Ferreira / Cardozo-Filho, Lucio

    Environmental pollution (Barking, Essex : 1987)

    2023  Band 335, Seite(n) 122331

    Abstract: The 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, ... ...

    Abstract The 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
    Mesh-Begriff(e) Water ; Copper ; Wastewater ; Organic Chemicals ; Recycling ; Polymers ; Magnesium
    Chemische Substanzen Water (059QF0KO0R) ; Copper (789U1901C5) ; Wastewater ; Organic Chemicals ; Polymers ; Magnesium (I38ZP9992A)
    Sprache Englisch
    Erscheinungsdatum 2023-08-07
    Erscheinungsland England
    Dokumenttyp Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2023.122331
    Datenquelle MEDical Literature Analysis and Retrieval System OnLINE

    Volltext online

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    Verfügbar in ZB MED Köln/Königswinter

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    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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