Eco-materials for soil remediation based on polyphosphate glasses
Autori
Nikolić, JelenaŽivanović, Vladimir
Matijašević, Srđan
Zildžović, Snežana
Grujić, Snežana
Smiljanić, Sonja
Ostala autorstva
Ćalić, NadeždaAndrić, Ljubiša
Miljanović, Igor
Simović, Ivana
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this paper the results of examination of the dissolution process of the polyphosphate glass 45P2O5×25K2O×15CaO×10MgO×3SiO2×ZnO×MnO [mol%] in 2% citric acid at temperatures of 15, 20 and 30 ºC were presented. The dissolution experiments were performed on glass powder grain size of 0.1-0.3 mm and 0.3-0.65 mm. The mass loss of glass, normalized concentration of PO43+ and K+ ions and the conductivity of solution (χ) as a function of leaching time was determined. It was revealed that for short reaction times, the changes of normalized mass loss (fm) are linear with time and the rates of glass dissolution under given conditions are highest. By increasing the dissolution time the dissolution rate of glass decreased. The initial release rates r0 (PO43-) = 3.550 [g/m2h] and r0 (K+) = 2.133 [g/m2h] at t = 300C were calculated for glass powder sample 0.3-0.65mm. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruptio...n of phosphate chains which form the structure of glass. The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation
Ključne reči:
soil remediation / eco- fertilizer / polyphosphate glass / citric acid / dissolutionIzvor:
XVI Balkan mineral processing congress, 2015, 2, 1007-1011Izdavač:
- Bor : Mining and Metallurgy Institute Bor
- Belgrade : Academy of Engineering Science of Serbia
- University of Belgrade
Finansiranje / projekti:
- Razvoj stakala sa kontrolisanim otpuštanjem jona za primenu u poljoprivredi i medicini (RS-MESTD-Technological Development (TD or TR)-34001)
- Fenomeni i procesi sinteze novih staklastih i nanostrukturnih staklo-keramičkih materijala (RS-MESTD-Basic Research (BR or ON)-172004)
Institucija/grupa
Institut za tehnologiju nuklearnih i drugih mineralnih sirovinaTY - CONF AU - Nikolić, Jelena AU - Živanović, Vladimir AU - Matijašević, Srđan AU - Zildžović, Snežana AU - Grujić, Snežana AU - Smiljanić, Sonja PY - 2015 UR - https://ritnms.itnms.ac.rs/handle/123456789/744 AB - In this paper the results of examination of the dissolution process of the polyphosphate glass 45P2O5×25K2O×15CaO×10MgO×3SiO2×ZnO×MnO [mol%] in 2% citric acid at temperatures of 15, 20 and 30 ºC were presented. The dissolution experiments were performed on glass powder grain size of 0.1-0.3 mm and 0.3-0.65 mm. The mass loss of glass, normalized concentration of PO43+ and K+ ions and the conductivity of solution (χ) as a function of leaching time was determined. It was revealed that for short reaction times, the changes of normalized mass loss (fm) are linear with time and the rates of glass dissolution under given conditions are highest. By increasing the dissolution time the dissolution rate of glass decreased. The initial release rates r0 (PO43-) = 3.550 [g/m2h] and r0 (K+) = 2.133 [g/m2h] at t = 300C were calculated for glass powder sample 0.3-0.65mm. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruption of phosphate chains which form the structure of glass. The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation PB - Bor : Mining and Metallurgy Institute Bor PB - Belgrade : Academy of Engineering Science of Serbia PB - University of Belgrade C3 - XVI Balkan mineral processing congress T1 - Eco-materials for soil remediation based on polyphosphate glasses EP - 1011 SP - 1007 VL - 2 ER -
@conference{ author = "Nikolić, Jelena and Živanović, Vladimir and Matijašević, Srđan and Zildžović, Snežana and Grujić, Snežana and Smiljanić, Sonja", year = "2015", abstract = "In this paper the results of examination of the dissolution process of the polyphosphate glass 45P2O5×25K2O×15CaO×10MgO×3SiO2×ZnO×MnO [mol%] in 2% citric acid at temperatures of 15, 20 and 30 ºC were presented. The dissolution experiments were performed on glass powder grain size of 0.1-0.3 mm and 0.3-0.65 mm. The mass loss of glass, normalized concentration of PO43+ and K+ ions and the conductivity of solution (χ) as a function of leaching time was determined. It was revealed that for short reaction times, the changes of normalized mass loss (fm) are linear with time and the rates of glass dissolution under given conditions are highest. By increasing the dissolution time the dissolution rate of glass decreased. The initial release rates r0 (PO43-) = 3.550 [g/m2h] and r0 (K+) = 2.133 [g/m2h] at t = 300C were calculated for glass powder sample 0.3-0.65mm. The dissolution process in citric acid is complex and can be explained by hydration reaction and hydrolysis, leading to the disruption of phosphate chains which form the structure of glass. The results of the dissolution experiments indicated that this glass can be used as an eco- fertilizer in soil remediation", publisher = "Bor : Mining and Metallurgy Institute Bor, Belgrade : Academy of Engineering Science of Serbia, University of Belgrade", journal = "XVI Balkan mineral processing congress", title = "Eco-materials for soil remediation based on polyphosphate glasses", pages = "1011-1007", volume = "2" }
Nikolić, J., Živanović, V., Matijašević, S., Zildžović, S., Grujić, S.,& Smiljanić, S.. (2015). Eco-materials for soil remediation based on polyphosphate glasses. in XVI Balkan mineral processing congress Bor : Mining and Metallurgy Institute Bor., 2, 1007-1011.
Nikolić J, Živanović V, Matijašević S, Zildžović S, Grujić S, Smiljanić S. Eco-materials for soil remediation based on polyphosphate glasses. in XVI Balkan mineral processing congress. 2015;2:1007-1011..
Nikolić, Jelena, Živanović, Vladimir, Matijašević, Srđan, Zildžović, Snežana, Grujić, Snežana, Smiljanić, Sonja, "Eco-materials for soil remediation based on polyphosphate glasses" in XVI Balkan mineral processing congress, 2 (2015):1007-1011.