Use of up-flow percolation test to assess the environmental properties of raw and treated fly ash
Само за регистроване кориснике
2019
Аутори
Rajaković-Ognjanović, Vladana N.Karanac, Milica
Smolar, Jasna
Petkovšek, Ana
Đolić, Maja B.
Despotović, Jovan
Конференцијски прилог (Објављена верзија)
,
© 2019 Gheorghe Asachi Technical University of Iasi, Romania
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Fly ash (FA) is a by-product created from the burning of coal in thermal power plants. FA mainly consists of mineral compounds that make them naturally caustic. Despite this, research has shown that FA may be utilized as an alternative material in civil engineering, hydrotechnics and agronomy. Leaching tests may provide theoretical validation that FA may be used as an alternative sorbent or additive in construction material. In this paper, the results of up-flow percolation tests performed on raw FA as well as lime and cement modified samples (MFA) are presented. This method was chosen as it yields the most reliable assessment of releasing heavy metals under long-term exploitation. The research has focused on the leaching behaviour of Sb, As and Se in raw, lime and cement MFA samples. Raw FA was found to leach Se, As and Sb metal ions, cement modification did not prevent Sb and Se leachates, while lime-modified MFA was found to be the most stable material.
Кључне речи:
fly ash / heavy metals / leaching / up-flow percolationИзвор:
Environmental Engineering and Management Journal, 2019, 18, 8, 1781-1788Напомена:
- 9th International Conference on Environmental Engineering and Management (ICEEM); Bologna, ITALY; SEP 06-09, 2017
Колекције
Институција/група
VinčaTY - CONF AU - Rajaković-Ognjanović, Vladana N. AU - Karanac, Milica AU - Smolar, Jasna AU - Petkovšek, Ana AU - Đolić, Maja B. AU - Despotović, Jovan PY - 2019 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8600 AB - Fly ash (FA) is a by-product created from the burning of coal in thermal power plants. FA mainly consists of mineral compounds that make them naturally caustic. Despite this, research has shown that FA may be utilized as an alternative material in civil engineering, hydrotechnics and agronomy. Leaching tests may provide theoretical validation that FA may be used as an alternative sorbent or additive in construction material. In this paper, the results of up-flow percolation tests performed on raw FA as well as lime and cement modified samples (MFA) are presented. This method was chosen as it yields the most reliable assessment of releasing heavy metals under long-term exploitation. The research has focused on the leaching behaviour of Sb, As and Se in raw, lime and cement MFA samples. Raw FA was found to leach Se, As and Sb metal ions, cement modification did not prevent Sb and Se leachates, while lime-modified MFA was found to be the most stable material. C3 - Environmental Engineering and Management Journal T1 - Use of up-flow percolation test to assess the environmental properties of raw and treated fly ash VL - 18 IS - 8 SP - 1781 EP - 1788 UR - https://hdl.handle.net/21.15107/rcub_vinar_8600 ER -
@conference{ author = "Rajaković-Ognjanović, Vladana N. and Karanac, Milica and Smolar, Jasna and Petkovšek, Ana and Đolić, Maja B. and Despotović, Jovan", year = "2019", abstract = "Fly ash (FA) is a by-product created from the burning of coal in thermal power plants. FA mainly consists of mineral compounds that make them naturally caustic. Despite this, research has shown that FA may be utilized as an alternative material in civil engineering, hydrotechnics and agronomy. Leaching tests may provide theoretical validation that FA may be used as an alternative sorbent or additive in construction material. In this paper, the results of up-flow percolation tests performed on raw FA as well as lime and cement modified samples (MFA) are presented. This method was chosen as it yields the most reliable assessment of releasing heavy metals under long-term exploitation. The research has focused on the leaching behaviour of Sb, As and Se in raw, lime and cement MFA samples. Raw FA was found to leach Se, As and Sb metal ions, cement modification did not prevent Sb and Se leachates, while lime-modified MFA was found to be the most stable material.", journal = "Environmental Engineering and Management Journal", title = "Use of up-flow percolation test to assess the environmental properties of raw and treated fly ash", volume = "18", number = "8", pages = "1781-1788", url = "https://hdl.handle.net/21.15107/rcub_vinar_8600" }
Rajaković-Ognjanović, V. N., Karanac, M., Smolar, J., Petkovšek, A., Đolić, M. B.,& Despotović, J.. (2019). Use of up-flow percolation test to assess the environmental properties of raw and treated fly ash. in Environmental Engineering and Management Journal, 18(8), 1781-1788. https://hdl.handle.net/21.15107/rcub_vinar_8600
Rajaković-Ognjanović VN, Karanac M, Smolar J, Petkovšek A, Đolić MB, Despotović J. Use of up-flow percolation test to assess the environmental properties of raw and treated fly ash. in Environmental Engineering and Management Journal. 2019;18(8):1781-1788. https://hdl.handle.net/21.15107/rcub_vinar_8600 .
Rajaković-Ognjanović, Vladana N., Karanac, Milica, Smolar, Jasna, Petkovšek, Ana, Đolić, Maja B., Despotović, Jovan, "Use of up-flow percolation test to assess the environmental properties of raw and treated fly ash" in Environmental Engineering and Management Journal, 18, no. 8 (2019):1781-1788, https://hdl.handle.net/21.15107/rcub_vinar_8600 .