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GRANULATION OF OIL SHALE ASH WITH SODIUM ALGINATE FOR THE REMOVAL OF PHENOLS FROM SHALE OIL WASTEWATER.

Authors :
REINIK, JANEK
IRHA, NATALYA
STEINNES, EILIV
HEINMAA, IVO
Source :
Oil Shale; 2018, Vol. 35 Issue 3, p265-278, 14p
Publication Year :
2018

Abstract

Oil shale ash (OSA) from the circulating fluidized bed (CFB) boiler was granulated and used as a sorbent for the removal of phenols from shale oil wastewater. The method for preparation of the sorbent involved washing of the ash, mixing with clay, gelling the mixture with sodium alginate solution, solidifying the granules in barium chloride solution, drying and calcination of the granules and modifying with a surfactant -- hexadecyltrimethylammonium bromide (CTAB). The sorbent was characterized by specific surface area (BETN2), X-ray diffraction (XRD) and 29Si Magic Angle Spinning- Nuclear Magnetic Resonance (MAS-NMR) analysis. Batch adsorption experiments were conducted to determine the phenol adsorption isotherm at 20 °C and removal of water-soluble phenols from phenolic shale oil processing wastewater. Removal of phenols from wastewater was found to be 50--65% under given conditions. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
0208189X
Volume :
35
Issue :
3
Database :
Complementary Index
Journal :
Oil Shale
Publication Type :
Academic Journal
Accession number :
131516165
Full Text :
https://doi.org/10.3176/oil.2018.3.06