Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination
2016
Преузимање 🢃
Аутори
Tasić, Aleksandra M.Sredović-Ignjatović, Ivana
Ignjatović, Ljubiša M.
Duranović, Danijel
Antić, Mališa
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Three different techniques were applied for the aqueous extraction of anions from coal and fly ash: rotary mixer-and ultrasonic-assisted extraction with different duration time, and microwave-assisted extraction at different temperatures. Validation showed that the ion-chromatographic method was suitable for the analysis of anions in coal and fly ash extracts. The variations in the amounts of anions using different extraction times during rotary-assisted extraction were minimal for all investigated anions. The efficiency of ultrasound-assisted extraction of anions from coal depended on the sonication time and was highest at 30 min. The ultrasound-assisted extraction was less efficient for the extraction of anions from fly ash than rotary-assisted extraction. Increase of temperature in the microwave-assisted extraction had a positive effect on the amounts of all anions extracted from coal and sulphate from fly ash, while the amounts of fluoride and chloride in fly ash extracts decreased.... The microwave-assisted extraction of coal at 150 degrees C was compared with standard ASTM methods, and results were in good agreement only for chloride. Changes in the pH value and conductivity during ultrasound-assisted extraction were measured in order to explain changes on the surface of coal particles in contact with water and different processes that occur under environmental conditions.
Кључне речи:
coal / fly ash / anions / extraction / ion chromatographyИзвор:
JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 2016, 81, 12, 1441-1453Издавач:
- Srpsko hemijsko društvo, Beograd
Финансирање / пројекти:
- Примена унапређених оксидационих процеса и наноструктурисаних оксидних материјала за уклањање загађивача из животне средине, развој и оптимизација инструменталних техника за праћење ефикасности (RS-MESTD-Basic Research (BR or ON)-172030)
- Геохемијска испитивања седиментних стена - фосилна горива и загађивачи животне средине (RS-MESTD-Basic Research (BR or ON)-176006)
- 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)
DOI: 10.2298/JSC160223086T
ISSN: 0352-5139
WoS: 000392946100010
Scopus: 2-s2.0-85009935551
Институција/група
Poljoprivredni fakultetTY - JOUR AU - Tasić, Aleksandra M. AU - Sredović-Ignjatović, Ivana AU - Ignjatović, Ljubiša M. AU - Duranović, Danijel AU - Antić, Mališa PY - 2016 UR - http://aspace.agrif.bg.ac.rs/handle/123456789/4046 AB - Three different techniques were applied for the aqueous extraction of anions from coal and fly ash: rotary mixer-and ultrasonic-assisted extraction with different duration time, and microwave-assisted extraction at different temperatures. Validation showed that the ion-chromatographic method was suitable for the analysis of anions in coal and fly ash extracts. The variations in the amounts of anions using different extraction times during rotary-assisted extraction were minimal for all investigated anions. The efficiency of ultrasound-assisted extraction of anions from coal depended on the sonication time and was highest at 30 min. The ultrasound-assisted extraction was less efficient for the extraction of anions from fly ash than rotary-assisted extraction. Increase of temperature in the microwave-assisted extraction had a positive effect on the amounts of all anions extracted from coal and sulphate from fly ash, while the amounts of fluoride and chloride in fly ash extracts decreased. The microwave-assisted extraction of coal at 150 degrees C was compared with standard ASTM methods, and results were in good agreement only for chloride. Changes in the pH value and conductivity during ultrasound-assisted extraction were measured in order to explain changes on the surface of coal particles in contact with water and different processes that occur under environmental conditions. PB - Srpsko hemijsko društvo, Beograd T2 - JOURNAL OF THE SERBIAN CHEMICAL SOCIETY T1 - Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination EP - 1453 IS - 12 SP - 1441 VL - 81 DO - 10.2298/JSC160223086T ER -
@article{ author = "Tasić, Aleksandra M. and Sredović-Ignjatović, Ivana and Ignjatović, Ljubiša M. and Duranović, Danijel and Antić, Mališa", year = "2016", abstract = "Three different techniques were applied for the aqueous extraction of anions from coal and fly ash: rotary mixer-and ultrasonic-assisted extraction with different duration time, and microwave-assisted extraction at different temperatures. Validation showed that the ion-chromatographic method was suitable for the analysis of anions in coal and fly ash extracts. The variations in the amounts of anions using different extraction times during rotary-assisted extraction were minimal for all investigated anions. The efficiency of ultrasound-assisted extraction of anions from coal depended on the sonication time and was highest at 30 min. The ultrasound-assisted extraction was less efficient for the extraction of anions from fly ash than rotary-assisted extraction. Increase of temperature in the microwave-assisted extraction had a positive effect on the amounts of all anions extracted from coal and sulphate from fly ash, while the amounts of fluoride and chloride in fly ash extracts decreased. The microwave-assisted extraction of coal at 150 degrees C was compared with standard ASTM methods, and results were in good agreement only for chloride. Changes in the pH value and conductivity during ultrasound-assisted extraction were measured in order to explain changes on the surface of coal particles in contact with water and different processes that occur under environmental conditions.", publisher = "Srpsko hemijsko društvo, Beograd", journal = "JOURNAL OF THE SERBIAN CHEMICAL SOCIETY", title = "Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination", pages = "1453-1441", number = "12", volume = "81", doi = "10.2298/JSC160223086T" }
Tasić, A. M., Sredović-Ignjatović, I., Ignjatović, L. M., Duranović, D.,& Antić, M.. (2016). Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY Srpsko hemijsko društvo, Beograd., 81(12), 1441-1453. https://doi.org/10.2298/JSC160223086T
Tasić AM, Sredović-Ignjatović I, Ignjatović LM, Duranović D, Antić M. Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination. in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY. 2016;81(12):1441-1453. doi:10.2298/JSC160223086T .
Tasić, Aleksandra M., Sredović-Ignjatović, Ivana, Ignjatović, Ljubiša M., Duranović, Danijel, Antić, Mališa, "Aqueous extraction of anions from coal and fly ash followed by ion-chromatographic determination" in JOURNAL OF THE SERBIAN CHEMICAL SOCIETY, 81, no. 12 (2016):1441-1453, https://doi.org/10.2298/JSC160223086T . .