- Tytuł:
- 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. - Powiązania:
- https://bibliotekanauki.pl/articles/207447.pdf
- Data publikacji:
- 2017
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
blast furnace slag
aqueous solutions
phosphorus
silicate
adsorbents
adsorption
adsorpcja
fosfor
krzemiany
odpady ściekowe
żużel wielkopiecowy - Opis:
- 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 SBET 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.
- Źródło:
-
Environment Protection Engineering; 2017, 43, 1; 161-168
0324-8828 - Pojawia się w:
- Environment Protection Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł