Characteristics of fly ashes, their potential uses and damaged conditions of landfill deposits
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Diverse industries produce fly ashes as thermal power plants, waste incinerators, and some recycling processes. Though some of these products can be raw materials for diverse applications, their composition can be hazardous due to their content in heavy metals. In addition, mixing fly ashes with the products of neutralization of fumes complicates the products. Then many fly ashes are landfilled in a Portland-cement matrix. However, most of the actual knowledge about their ageing derives from models the validity of which has been established only on the short term, using small sized proofs, at room conditions while matter transfers and reactions are strongly affected by temperatures reaching 80 °C for many years. Ageing leads to a mobility of chlorides, sulphates and lead, alteration of textural properties with formation of microcracks, formation of neo-formed minerals as silicatehydrates (katoite and hibschite, CSH), carbonates, tobermorite, hydrogarnets zeolites,…) that can contribute... to bear Pb, Zn, Cr, Cu, in addition to inherited phases (metallic alloys, spinels, glasses, refractory oxides, titanates, phosphates,…). The alkaline hydrolysis of aluminium in saline media decreases the pH and promotes the precipitation of lead species trapped in a hydrocalumite or ettringite matrix.
Кључне речи:
Fly ashes / Cement based matrix / Long-term evolutionИзвор:
Proceedings - 26th International Conference Ecological Truth and Environmental Research-EcoTer 18, June 12-1, 2018, Borsko jezero, Serbia, 2018, 326-331Издавач:
- University of Belgrade, Technical Faculty in Bor
Финансирање / пројекти:
- The Ministry of Education, Science, and Technological Development of Republic of Serbia as part of the the bilateral project 451-03-01963/2017-09/08 between the France and Serbia (Pavle Savic program)
- LIFE Program Research LIFE99 ENV/B/000638
Институција/група
IHTMTY - CONF AU - Kanari, Ndue AU - Diot, Frederic AU - Milićević, Sonja AU - Martinović, Sanja AU - Vlahović, Milica AU - Yvon, Jacque PY - 2018 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/5967 AB - Diverse industries produce fly ashes as thermal power plants, waste incinerators, and some recycling processes. Though some of these products can be raw materials for diverse applications, their composition can be hazardous due to their content in heavy metals. In addition, mixing fly ashes with the products of neutralization of fumes complicates the products. Then many fly ashes are landfilled in a Portland-cement matrix. However, most of the actual knowledge about their ageing derives from models the validity of which has been established only on the short term, using small sized proofs, at room conditions while matter transfers and reactions are strongly affected by temperatures reaching 80 °C for many years. Ageing leads to a mobility of chlorides, sulphates and lead, alteration of textural properties with formation of microcracks, formation of neo-formed minerals as silicatehydrates (katoite and hibschite, CSH), carbonates, tobermorite, hydrogarnets zeolites,…) that can contribute to bear Pb, Zn, Cr, Cu, in addition to inherited phases (metallic alloys, spinels, glasses, refractory oxides, titanates, phosphates,…). The alkaline hydrolysis of aluminium in saline media decreases the pH and promotes the precipitation of lead species trapped in a hydrocalumite or ettringite matrix. PB - University of Belgrade, Technical Faculty in Bor C3 - Proceedings - 26th International Conference Ecological Truth and Environmental Research-EcoTer 18, June 12-1, 2018, Borsko jezero, Serbia T1 - Characteristics of fly ashes, their potential uses and damaged conditions of landfill deposits SP - 326 EP - 331 UR - https://hdl.handle.net/21.15107/rcub_cer_5967 ER -
@conference{ author = "Kanari, Ndue and Diot, Frederic and Milićević, Sonja and Martinović, Sanja and Vlahović, Milica and Yvon, Jacque", year = "2018", abstract = "Diverse industries produce fly ashes as thermal power plants, waste incinerators, and some recycling processes. Though some of these products can be raw materials for diverse applications, their composition can be hazardous due to their content in heavy metals. In addition, mixing fly ashes with the products of neutralization of fumes complicates the products. Then many fly ashes are landfilled in a Portland-cement matrix. However, most of the actual knowledge about their ageing derives from models the validity of which has been established only on the short term, using small sized proofs, at room conditions while matter transfers and reactions are strongly affected by temperatures reaching 80 °C for many years. Ageing leads to a mobility of chlorides, sulphates and lead, alteration of textural properties with formation of microcracks, formation of neo-formed minerals as silicatehydrates (katoite and hibschite, CSH), carbonates, tobermorite, hydrogarnets zeolites,…) that can contribute to bear Pb, Zn, Cr, Cu, in addition to inherited phases (metallic alloys, spinels, glasses, refractory oxides, titanates, phosphates,…). The alkaline hydrolysis of aluminium in saline media decreases the pH and promotes the precipitation of lead species trapped in a hydrocalumite or ettringite matrix.", publisher = "University of Belgrade, Technical Faculty in Bor", journal = "Proceedings - 26th International Conference Ecological Truth and Environmental Research-EcoTer 18, June 12-1, 2018, Borsko jezero, Serbia", title = "Characteristics of fly ashes, their potential uses and damaged conditions of landfill deposits", pages = "326-331", url = "https://hdl.handle.net/21.15107/rcub_cer_5967" }
Kanari, N., Diot, F., Milićević, S., Martinović, S., Vlahović, M.,& Yvon, J.. (2018). Characteristics of fly ashes, their potential uses and damaged conditions of landfill deposits. in Proceedings - 26th International Conference Ecological Truth and Environmental Research-EcoTer 18, June 12-1, 2018, Borsko jezero, Serbia University of Belgrade, Technical Faculty in Bor., 326-331. https://hdl.handle.net/21.15107/rcub_cer_5967
Kanari N, Diot F, Milićević S, Martinović S, Vlahović M, Yvon J. Characteristics of fly ashes, their potential uses and damaged conditions of landfill deposits. in Proceedings - 26th International Conference Ecological Truth and Environmental Research-EcoTer 18, June 12-1, 2018, Borsko jezero, Serbia. 2018;:326-331. https://hdl.handle.net/21.15107/rcub_cer_5967 .
Kanari, Ndue, Diot, Frederic, Milićević, Sonja, Martinović, Sanja, Vlahović, Milica, Yvon, Jacque, "Characteristics of fly ashes, their potential uses and damaged conditions of landfill deposits" in Proceedings - 26th International Conference Ecological Truth and Environmental Research-EcoTer 18, June 12-1, 2018, Borsko jezero, Serbia (2018):326-331, https://hdl.handle.net/21.15107/rcub_cer_5967 .