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http://hdl.handle.net/2445/207303| Title: | Phosphorus solubility in basaltic glass: limitations for phosphorus immobilization in glass and glass-ceramics |
| Author: | Tarragó Aymerich, Mariona Garcia Vallès, Maite Martínez Manent, Salvador Neuville, D.R. |
| Keywords: | Fòsfor Basalt Vidre Vitroceràmica Phosphorus Basalt Glass Glass-ceramics |
| Issue Date: | 18-Apr-2018 |
| Publisher: | Elsevier |
| Abstract: | The composition of sewage sludge from urban wastewater treatment plants is simulated using P-doped basalts. Electron microscopy analyses show that the solubility of P in the basaltic melt is limited by the formation of a liquid-liquid immiscibility in the form of an aluminosilicate phase and a Ca-Mg-Fe-rich phosphate phase. The rheological behavior of these compositions is influenced by both phase separation and nanocrystallization. Upon a thermal treatment, the glasses will crystallize into a mixture of inosilicates and spinel-like phases at low P contents and into Ca-Mg-Fe phosphate at high P contents. Hardness measurements yield values between 5.41 and 7.66 GPa, inside the range of commercial glasses and glass-ceramics. Leaching affects mainly unstable Mg2+-PO43- complexes. |
| Note: | Versió postprint del document publicat a: https://doi.org/10.1016/j.jenvman.2018.04.079 |
| It is part of: | Journal of Environmental Management, 2018, vol. 220, p. 54-64 |
| URI: | http://hdl.handle.net/2445/207303 |
| Related resource: | https://doi.org/10.1016/j.jenvman.2018.04.079 |
| ISSN: | 0301-4797 |
| Appears in Collections: | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| 209385.pdf | 2.17 MB | Adobe PDF | View/Open |
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