Preparation of sorbent with a high active sorption surface based on blast furnace slag for phosphate removal from wastewater

• Autorzy: Kostura B. , Dvorsky R. , Kukutschová J. , Študentová S. , Bednář J. , Mančík P.

Identyfikatory

DOI

10.5277/epe170113

• Języki publikacji: EN

Abstrakty

EN

A new method has been presented, which leads to a significant improvement of the adsorption ability of blast furnace slag (BFS). An ultra-high pressure water jet mill cavitation disintegrator and a controlled vacuum freeze dryer were used to disintegrate amorphous BFS. Specific surface areas of both BFS and disintegrated slag (BFS-D) were measured using the S^BET method. BFS-D was obtained with an average particle size of 198 nm and with 27-times bigger free specific surface area than that of original BFS. The BFS-D was tested as an adsorbent of phosphate from aqueous solutions. Adsorption data were analysed using the Freundlich and Langmuir adsorption isotherms. The BFS-D after phosphate adsorption was characterized using FTIR. The theoretical adsorption capacity of the BFS-D was 30.49 mg P/g, which represents an increase by 126.7% compared to the original BFS. Surface precipitation of hydroxyapatite was dominant retention mechanism.

Słowa kluczowe

EN

blast furnace slag; aqueous solutions; phosphorus; silicate; adsorbents; adsorption

PL

adsorpcja; fosfor; krzemiany; odpady ściekowe; żużel wielkopiecowy

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2017
• Tom: Vol. 43, nr 1
• Strony: 161--168
• Opis fizyczny: Bibliogr. 21 poz., tab., rys.

Twórcy

autor

Kostura B.

• VŠB-Technical University of Ostrava, Department of Chemistry, 17 Listopadu 15/2172, 708 33 Ostrava- -Poruba, Czech Republic

autor

Dvorsky R.

• VŠB-Technical University of Ostrava, Department of Physics, 17 Listopadu 15/2172, 708 33 Ostrava- -Poruba, Czech Republic
• VŠB-Technical University of Ostrava, Regional Materials Science and Technology Centre, 17 Listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic

autor

Kukutschová J.

• VŠB-Technical University of Ostrava, Nanotechnology Centre, 17 Listopadu 15/2172, 708 33 Ostrava- Poruba, Czech Republic
• VŠB-Technical University of Ostrava, Regional Materials Science and Technology Centre, 17 Listopadu 15/2172, 708 33 Ostrava-Poruba, Czech Republic

autor

Študentová S.

• VŠB-Technical University of Ostrava, Department of Chemistry, 17 Listopadu 15/2172, 708 33 Ostrava- -Poruba, Czech Republic

autor

Bednář J.

• VŠB-Technical University of Ostrava, Nanotechnology Centre, 17 Listopadu 15/2172, 708 33 Ostrava- Poruba, Czech Republic

autor

Mančík P.

• VŠB-Technical University of Ostrava, Nanotechnology Centre, 17 Listopadu 15/2172, 708 33 Ostrava- Poruba, Czech Republic

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).