A modified method for removal and stabilization of cesium metal in vitrified matrix
Laboratory experiments were designed to investigate the separation and stabilization of cesium metal. Cesium was removed from simulated waste through sorption under certain physicochemical conditions. Silica sand (locally purchased) was used to remove cesium from simulated liquid waste. The range of...
Saved in:
| Published in: | Химия и технология воды |
|---|---|
| Date: | 2012 |
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України
2012
|
| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/130732 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | A modified method for removal and stabilization of cesium metal in vitrified matrix / Ghaffar Abdul, Mazhar Farhana, Mashiatullah Azhar, Abdulaziz S. Alaamer // Химия и технология воды. — 2012. — Т. 34, № 6. — С. 440-449. — Бібліогр.: 22 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862619068612214784 |
|---|---|
| author | Ghaffar Abdul Mazhar Farhana Mashiatullah Azhar Abdulaziz S. Alaamer |
| author_facet | Ghaffar Abdul Mazhar Farhana Mashiatullah Azhar Abdulaziz S. Alaamer |
| citation_txt | A modified method for removal and stabilization of cesium metal in vitrified matrix / Ghaffar Abdul, Mazhar Farhana, Mashiatullah Azhar, Abdulaziz S. Alaamer // Химия и технология воды. — 2012. — Т. 34, № 6. — С. 440-449. — Бібліогр.: 22 назв. — англ. |
| collection | DSpace DC |
| container_title | Химия и технология воды |
| description | Laboratory experiments were designed to investigate the separation and stabilization of cesium metal. Cesium was removed from simulated waste through sorption under certain physicochemical conditions. Silica sand (locally purchased) was used to remove cesium from simulated liquid waste. The range of pH and temperature was optimized and maximum removal (94 – 98 %) of cesium was achieved with pH 10 at temperature 36°C. Under optimized conditions with temperature range of 301– 315K ΔH, ΔS and ΔG309K for 150 ppm solution are – 27.22±0.18 KJ/mol, – 74.1± 0.96 J/mol and – 3071±2.1 KJ/mol respectively, and for 200 ppm solution thermodynamic entities are ΔH= – 20.2±0.20 KJ/mol, ΔS = – 47.86±0.66 J/mol and G301K = – 4344±3.7 KJ/mol. The sorbed metal ion has chances of desorption under changed physicochemical conditions in final disposal. To overcome this problem the final "secondary waste (metals on sorbents)" was stabilized by converting it into a stable vitreous borosilicate matrix through vitrification process to prevent leaching. It was found that the sorbed cesium was evaporated during heating at 1250°C. The evaporation of cesium during vitrification was overcome by modifying the process. This modified vitrification process is found excellent to immobilize the sorbed cesium. Stability was tested by desorption attempts at different pH.
|
| first_indexed | 2025-12-07T13:17:06Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-130732 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0204-3556 |
| language | English |
| last_indexed | 2025-12-07T13:17:06Z |
| publishDate | 2012 |
| publisher | Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України |
| record_format | dspace |
| spelling | Ghaffar Abdul Mazhar Farhana Mashiatullah Azhar Abdulaziz S. Alaamer 2018-02-20T16:21:17Z 2018-02-20T16:21:17Z 2012 A modified method for removal and stabilization of cesium metal in vitrified matrix / Ghaffar Abdul, Mazhar Farhana, Mashiatullah Azhar, Abdulaziz S. Alaamer // Химия и технология воды. — 2012. — Т. 34, № 6. — С. 440-449. — Бібліогр.: 22 назв. — англ. 0204-3556 https://nasplib.isofts.kiev.ua/handle/123456789/130732 Laboratory experiments were designed to investigate the separation and stabilization of cesium metal. Cesium was removed from simulated waste through sorption under certain physicochemical conditions. Silica sand (locally purchased) was used to remove cesium from simulated liquid waste. The range of pH and temperature was optimized and maximum removal (94 – 98 %) of cesium was achieved with pH 10 at temperature 36°C. Under optimized conditions with temperature range of 301– 315K ΔH, ΔS and ΔG309K for 150 ppm solution are – 27.22±0.18 KJ/mol, – 74.1± 0.96 J/mol and – 3071±2.1 KJ/mol respectively, and for 200 ppm solution thermodynamic entities are ΔH= – 20.2±0.20 KJ/mol, ΔS = – 47.86±0.66 J/mol and G301K = – 4344±3.7 KJ/mol. The sorbed metal ion has chances of desorption under changed physicochemical conditions in final disposal. To overcome this problem the final "secondary waste (metals on sorbents)" was stabilized by converting it into a stable vitreous borosilicate matrix through vitrification process to prevent leaching. It was found that the sorbed cesium was evaporated during heating at 1250°C. The evaporation of cesium during vitrification was overcome by modifying the process. This modified vitrification process is found excellent to immobilize the sorbed cesium. Stability was tested by desorption attempts at different pH. en Інститут колоїдної хімії та хімії води ім. А.В. Думанського НАН України Химия и технология воды Физическая химия процессов обработки воды A modified method for removal and stabilization of cesium metal in vitrified matrix Article published earlier |
| spellingShingle | A modified method for removal and stabilization of cesium metal in vitrified matrix Ghaffar Abdul Mazhar Farhana Mashiatullah Azhar Abdulaziz S. Alaamer Физическая химия процессов обработки воды |
| title | A modified method for removal and stabilization of cesium metal in vitrified matrix |
| title_full | A modified method for removal and stabilization of cesium metal in vitrified matrix |
| title_fullStr | A modified method for removal and stabilization of cesium metal in vitrified matrix |
| title_full_unstemmed | A modified method for removal and stabilization of cesium metal in vitrified matrix |
| title_short | A modified method for removal and stabilization of cesium metal in vitrified matrix |
| title_sort | modified method for removal and stabilization of cesium metal in vitrified matrix |
| topic | Физическая химия процессов обработки воды |
| topic_facet | Физическая химия процессов обработки воды |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/130732 |
| work_keys_str_mv | AT ghaffarabdul amodifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT mazharfarhana amodifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT mashiatullahazhar amodifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT abdulazizsalaamer amodifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT ghaffarabdul modifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT mazharfarhana modifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT mashiatullahazhar modifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix AT abdulazizsalaamer modifiedmethodforremovalandstabilizationofcesiummetalinvitrifiedmatrix |