Physical and chemical treatment of end of life panels

An integrated automatic approach viable for different photovoltaic technologies

Francesca Pagnanelli, Emanuela Moscardini, Giuseppe Granata, Thomas Abo Atia, Pietro Altimari, Tomas Havlik, Luigi Toro

    Research output: Contribution to journalArticle

    11 Citations (Scopus)

    Abstract

    Different kinds of panels (Si-based panels and CdTe panels) were treated according to a common process route made up of two main steps: a physical treatment (triple crushing and thermal treatment) and a chemical treatment. After triple crushing three fractions were obtained: an intermediate fraction (0.4–1 mm) of directly recoverable glass (17%w/w); a coarse fraction (>1 mm) requiring further thermal treatment in order to separate EVA-glued layers in glass fragments; a fine fraction (<0.4 mm) requiring chemical treatment to dissolve metals and obtain another recoverable glass fraction. Coarse fractions (62%w/w) were treated thermally giving another recoverable glass fraction (52%w/w). Fine fractions can be further sieved into two sub-fractions: <0.08 mm (3%w/w) and 0.08–0.4 mm (22%w/w). Chemical characterization showed that 0.08–0.4 mm fractions mainly contained Fe, Al and Zn, while precious and dangerous metals (Ag, Ti, Te, Cu and Cd) are mainly present in fractions <0.08 mm. Acid leaching of 0.08–0.4 mm fractions allowed to obtain a third recoverable glass fraction (22%w/w). The process route allowed to treat by the same scheme of operation both Si based panels and Cd-Te panels with an overall recycling rate of 91%.

    Original languageEnglish
    Pages (from-to)422-431
    Number of pages10
    JournalWaste Management
    Volume59
    DOIs
    Publication statusPublished - 2017 Jan 1

    Fingerprint

    glass
    crushing
    metal
    recycling
    leaching
    chemical treatment
    physical treatment
    acid
    thermal treatment

    Keywords

    • Chemical treatment
    • Glass recovery
    • Photovoltaic panels
    • Physical treatment
    • Recycling

    ASJC Scopus subject areas

    • Waste Management and Disposal

    Cite this

    Physical and chemical treatment of end of life panels : An integrated automatic approach viable for different photovoltaic technologies. / Pagnanelli, Francesca; Moscardini, Emanuela; Granata, Giuseppe; Abo Atia, Thomas; Altimari, Pietro; Havlik, Tomas; Toro, Luigi.

    In: Waste Management, Vol. 59, 01.01.2017, p. 422-431.

    Research output: Contribution to journalArticle

    Pagnanelli, Francesca ; Moscardini, Emanuela ; Granata, Giuseppe ; Abo Atia, Thomas ; Altimari, Pietro ; Havlik, Tomas ; Toro, Luigi. / Physical and chemical treatment of end of life panels : An integrated automatic approach viable for different photovoltaic technologies. In: Waste Management. 2017 ; Vol. 59. pp. 422-431.
    @article{b190c983100f4c0f893887293f9e51ad,
    title = "Physical and chemical treatment of end of life panels: An integrated automatic approach viable for different photovoltaic technologies",
    abstract = "Different kinds of panels (Si-based panels and CdTe panels) were treated according to a common process route made up of two main steps: a physical treatment (triple crushing and thermal treatment) and a chemical treatment. After triple crushing three fractions were obtained: an intermediate fraction (0.4–1 mm) of directly recoverable glass (17{\%}w/w); a coarse fraction (>1 mm) requiring further thermal treatment in order to separate EVA-glued layers in glass fragments; a fine fraction (<0.4 mm) requiring chemical treatment to dissolve metals and obtain another recoverable glass fraction. Coarse fractions (62{\%}w/w) were treated thermally giving another recoverable glass fraction (52{\%}w/w). Fine fractions can be further sieved into two sub-fractions: <0.08 mm (3{\%}w/w) and 0.08–0.4 mm (22{\%}w/w). Chemical characterization showed that 0.08–0.4 mm fractions mainly contained Fe, Al and Zn, while precious and dangerous metals (Ag, Ti, Te, Cu and Cd) are mainly present in fractions <0.08 mm. Acid leaching of 0.08–0.4 mm fractions allowed to obtain a third recoverable glass fraction (22{\%}w/w). The process route allowed to treat by the same scheme of operation both Si based panels and Cd-Te panels with an overall recycling rate of 91{\%}.",
    keywords = "Chemical treatment, Glass recovery, Photovoltaic panels, Physical treatment, Recycling",
    author = "Francesca Pagnanelli and Emanuela Moscardini and Giuseppe Granata and {Abo Atia}, Thomas and Pietro Altimari and Tomas Havlik and Luigi Toro",
    year = "2017",
    month = "1",
    day = "1",
    doi = "10.1016/j.wasman.2016.11.011",
    language = "English",
    volume = "59",
    pages = "422--431",
    journal = "Waste Management",
    issn = "0956-053X",
    publisher = "Elsevier Limited",

    }

    TY - JOUR

    T1 - Physical and chemical treatment of end of life panels

    T2 - An integrated automatic approach viable for different photovoltaic technologies

    AU - Pagnanelli, Francesca

    AU - Moscardini, Emanuela

    AU - Granata, Giuseppe

    AU - Abo Atia, Thomas

    AU - Altimari, Pietro

    AU - Havlik, Tomas

    AU - Toro, Luigi

    PY - 2017/1/1

    Y1 - 2017/1/1

    N2 - Different kinds of panels (Si-based panels and CdTe panels) were treated according to a common process route made up of two main steps: a physical treatment (triple crushing and thermal treatment) and a chemical treatment. After triple crushing three fractions were obtained: an intermediate fraction (0.4–1 mm) of directly recoverable glass (17%w/w); a coarse fraction (>1 mm) requiring further thermal treatment in order to separate EVA-glued layers in glass fragments; a fine fraction (<0.4 mm) requiring chemical treatment to dissolve metals and obtain another recoverable glass fraction. Coarse fractions (62%w/w) were treated thermally giving another recoverable glass fraction (52%w/w). Fine fractions can be further sieved into two sub-fractions: <0.08 mm (3%w/w) and 0.08–0.4 mm (22%w/w). Chemical characterization showed that 0.08–0.4 mm fractions mainly contained Fe, Al and Zn, while precious and dangerous metals (Ag, Ti, Te, Cu and Cd) are mainly present in fractions <0.08 mm. Acid leaching of 0.08–0.4 mm fractions allowed to obtain a third recoverable glass fraction (22%w/w). The process route allowed to treat by the same scheme of operation both Si based panels and Cd-Te panels with an overall recycling rate of 91%.

    AB - Different kinds of panels (Si-based panels and CdTe panels) were treated according to a common process route made up of two main steps: a physical treatment (triple crushing and thermal treatment) and a chemical treatment. After triple crushing three fractions were obtained: an intermediate fraction (0.4–1 mm) of directly recoverable glass (17%w/w); a coarse fraction (>1 mm) requiring further thermal treatment in order to separate EVA-glued layers in glass fragments; a fine fraction (<0.4 mm) requiring chemical treatment to dissolve metals and obtain another recoverable glass fraction. Coarse fractions (62%w/w) were treated thermally giving another recoverable glass fraction (52%w/w). Fine fractions can be further sieved into two sub-fractions: <0.08 mm (3%w/w) and 0.08–0.4 mm (22%w/w). Chemical characterization showed that 0.08–0.4 mm fractions mainly contained Fe, Al and Zn, while precious and dangerous metals (Ag, Ti, Te, Cu and Cd) are mainly present in fractions <0.08 mm. Acid leaching of 0.08–0.4 mm fractions allowed to obtain a third recoverable glass fraction (22%w/w). The process route allowed to treat by the same scheme of operation both Si based panels and Cd-Te panels with an overall recycling rate of 91%.

    KW - Chemical treatment

    KW - Glass recovery

    KW - Photovoltaic panels

    KW - Physical treatment

    KW - Recycling

    UR - http://www.scopus.com/inward/record.url?scp=85006314523&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=85006314523&partnerID=8YFLogxK

    U2 - 10.1016/j.wasman.2016.11.011

    DO - 10.1016/j.wasman.2016.11.011

    M3 - Article

    VL - 59

    SP - 422

    EP - 431

    JO - Waste Management

    JF - Waste Management

    SN - 0956-053X

    ER -