Relationships Between Bone Treatment Conditions and Co2+ Sorption Capacities
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Co-60 is an important radionuclide in spent nuclear fuel and liquid radioactive wastes. For the purification of water containing Co2+, ions sorption on hydroxyapatite (Ca-10(PO4)(6)(OH)(2)) can be applied. The process is particularly cost-effective if biological apatite from animal bones is utilized. In this study, dependence between bovine bone treatment conditions and Co2+, sorption was investigated as a function of initial metal concentration. Eight sorbents were previously prepared using fractional factorial design, by simultaneous variations of five process variables between two levels: factor A-the type of the chemical reagent (H2O2 or NaOH), factor B-reagent concentration (0.1 mol/L or 2 mol/L), factor C-reaction temperature (20(o)C or 60(o)C), factor D-contact time (1h or 3h) and factor E-sample annealing (without or at 400(o)C). At this point, the effects of treatment factors on Co2+, sorption efficiency were evaluated using statistical analysis. Amounts of Co2+ sorbed, amount...s of released Ca2+ ions and final pH values were considered as system responses. The results showed that the impact of various treatment factors was different for different starting concentrations of Co2+. Consequently, no statistically important relations could be established between treatment conditions and Co2+, sorption from 10(-4) and 5*10(-4) mol/L solutions, whereas thermal treatment at 400(o)C was the only statistically significant factor influencing sorption from the most concentrated solution (5*10(-3) mol/L). Depending on initial Co2+, concentration, various factors had statistically significant effect on equilibrium pH values, whereas no relation was found between bone treatment conditions and the amounts of Ca2+, released during the sorption.
Кључне речи:
design of experiments / bioapatite / Co2+ / sorptionИзвор:
RAD Conference Proceedings, 2015, 217-222Финансирање / пројекти:
- Нове технологије за мониторинг и заштиту животног окружења од штетних хемијских супстанци и радијационог оптерећења (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43009)
Напомена:
- 3rd International Conference on Radiation and Applications in Various Fields of Research (RAD), Jun 08-12, 2015, Budva, Montenegro
Колекције
Институција/група
VinčaTY - CONF AU - Šljivić-Ivanović, Marija Z. AU - Smičiklas, Ivana D. AU - Milenković, Aleksandra AU - Dimović, Slavko PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/7124 AB - Co-60 is an important radionuclide in spent nuclear fuel and liquid radioactive wastes. For the purification of water containing Co2+, ions sorption on hydroxyapatite (Ca-10(PO4)(6)(OH)(2)) can be applied. The process is particularly cost-effective if biological apatite from animal bones is utilized. In this study, dependence between bovine bone treatment conditions and Co2+, sorption was investigated as a function of initial metal concentration. Eight sorbents were previously prepared using fractional factorial design, by simultaneous variations of five process variables between two levels: factor A-the type of the chemical reagent (H2O2 or NaOH), factor B-reagent concentration (0.1 mol/L or 2 mol/L), factor C-reaction temperature (20(o)C or 60(o)C), factor D-contact time (1h or 3h) and factor E-sample annealing (without or at 400(o)C). At this point, the effects of treatment factors on Co2+, sorption efficiency were evaluated using statistical analysis. Amounts of Co2+ sorbed, amounts of released Ca2+ ions and final pH values were considered as system responses. The results showed that the impact of various treatment factors was different for different starting concentrations of Co2+. Consequently, no statistically important relations could be established between treatment conditions and Co2+, sorption from 10(-4) and 5*10(-4) mol/L solutions, whereas thermal treatment at 400(o)C was the only statistically significant factor influencing sorption from the most concentrated solution (5*10(-3) mol/L). Depending on initial Co2+, concentration, various factors had statistically significant effect on equilibrium pH values, whereas no relation was found between bone treatment conditions and the amounts of Ca2+, released during the sorption. C3 - RAD Conference Proceedings T1 - Relationships Between Bone Treatment Conditions and Co2+ Sorption Capacities SP - 217 EP - 222 UR - https://hdl.handle.net/21.15107/rcub_vinar_7124 ER -
@conference{ author = "Šljivić-Ivanović, Marija Z. and Smičiklas, Ivana D. and Milenković, Aleksandra and Dimović, Slavko", year = "2015", abstract = "Co-60 is an important radionuclide in spent nuclear fuel and liquid radioactive wastes. For the purification of water containing Co2+, ions sorption on hydroxyapatite (Ca-10(PO4)(6)(OH)(2)) can be applied. The process is particularly cost-effective if biological apatite from animal bones is utilized. In this study, dependence between bovine bone treatment conditions and Co2+, sorption was investigated as a function of initial metal concentration. Eight sorbents were previously prepared using fractional factorial design, by simultaneous variations of five process variables between two levels: factor A-the type of the chemical reagent (H2O2 or NaOH), factor B-reagent concentration (0.1 mol/L or 2 mol/L), factor C-reaction temperature (20(o)C or 60(o)C), factor D-contact time (1h or 3h) and factor E-sample annealing (without or at 400(o)C). At this point, the effects of treatment factors on Co2+, sorption efficiency were evaluated using statistical analysis. Amounts of Co2+ sorbed, amounts of released Ca2+ ions and final pH values were considered as system responses. The results showed that the impact of various treatment factors was different for different starting concentrations of Co2+. Consequently, no statistically important relations could be established between treatment conditions and Co2+, sorption from 10(-4) and 5*10(-4) mol/L solutions, whereas thermal treatment at 400(o)C was the only statistically significant factor influencing sorption from the most concentrated solution (5*10(-3) mol/L). Depending on initial Co2+, concentration, various factors had statistically significant effect on equilibrium pH values, whereas no relation was found between bone treatment conditions and the amounts of Ca2+, released during the sorption.", journal = "RAD Conference Proceedings", title = "Relationships Between Bone Treatment Conditions and Co2+ Sorption Capacities", pages = "217-222", url = "https://hdl.handle.net/21.15107/rcub_vinar_7124" }
Šljivić-Ivanović, M. Z., Smičiklas, I. D., Milenković, A.,& Dimović, S.. (2015). Relationships Between Bone Treatment Conditions and Co2+ Sorption Capacities. in RAD Conference Proceedings, 217-222. https://hdl.handle.net/21.15107/rcub_vinar_7124
Šljivić-Ivanović MZ, Smičiklas ID, Milenković A, Dimović S. Relationships Between Bone Treatment Conditions and Co2+ Sorption Capacities. in RAD Conference Proceedings. 2015;:217-222. https://hdl.handle.net/21.15107/rcub_vinar_7124 .
Šljivić-Ivanović, Marija Z., Smičiklas, Ivana D., Milenković, Aleksandra, Dimović, Slavko, "Relationships Between Bone Treatment Conditions and Co2+ Sorption Capacities" in RAD Conference Proceedings (2015):217-222, https://hdl.handle.net/21.15107/rcub_vinar_7124 .