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    Université de Fribourg

    Impact of industrial phosphate waste discharge on the marine environment in the Gulf of Gabes (Tunisia)

    Kateb, Akram El ; Stalder, Claudio ; Rüggeberg, Andres ; Neururer, Christoph ; Spangenberg, Jorge E. ; Spezzaferri, Silvia

    In: PLOS ONE, 2018, vol. 13, no. 5, p. e0197731

    The marine environment in the Gulf of Gabes (southern Tunisia) is severely impacted by phosphate industries. Nowadays, three localities, Sfax, Skhira and Gabes produce phosphoric acid along the coasts of this Gulf and generate a large amount of phosphogypsum as a waste product. The Gabes phosphate industry is the major cause of pollution in the Gulf because most of the waste is directly...

    Université de Fribourg

    Antimonate opaque glaze colours from the faience manufacture of Le Bois d'Épense (19th century, Northeastern France)*

    Maggetti, Marino ; Neururer, Christoph ; Rosen, J.

    In: Archaeometry, 2009, vol. 51, no. 5, p. 791-807

    Three types of antimony-based, opaque ceramic colours were used in the faience workshop of Le Bois d'Épense during the first decades of the 19th century; that is, yellow, tawny and green. Yellow is generated by lead antimonate crystals (Naples Yellow), which are incorporated into an uncoloured glass matrix. According to SEM–EDS measurements, these pigments contain iron. The tawny colour is the...