Surfactant-modified microporous zeolites for wastewater treatment (CROSBI ID 530058)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Rožić, Mirela ; Kropar Vančina, Vesna ; Anić-Vučinić, Aleksandra ; Sekovanić, Lavoslav ; Košutić, Krešimir
engleski
Surfactant-modified microporous zeolites for wastewater treatment
In this work the sorption of the cationic surfactant hexadecyltrimethylammonium bromide (HDTMA+Br-) on a natural zeolite clinoptilolite was studied. Clarification of artificial wastewater (AWW) by the surfactant-modified zeolite samples was examined too. Artificial wastewater was prepared with ink-jet dye with addition of organic solvent. The results indicated that the examined surfactant can be significantly sorbed by zeolite. Zeta-potential measurements showed that the surfactant uptake resulted in a reversal of the charge on the zeolite from negative to positive. This is acchieved when surfactant loading on zeolite is approximately equal 0, 145 mmol/g and in this point the zeolite charge is about zero. Untreated zeolite showed little affinity for wastewater clarification. For the wastewater clarification the most efficient are zeolite samples in which surfactant loading was from 0, 022 to 0, 125 mmol/g. With 0, 5 % (w/w) of these surfactant-modified zeolite samples, from the solution with dye concentration of 20 mg/l efficency of clarification is more than 95%.
cationic surfactant; HDTMA+Br-; zeolite; wastewater
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Podaci o prilogu
131-135.
2007.
objavljeno
Podaci o matičnoj publikaciji
11th International Conference of Printing, Design and Graphic Communications Blaž Baromić : proceedings
Bolanča, Zdenka
Zagreb : Senj : Ljubljana: Grafički fakultet Sveučilišta u Zagrebu
978-953-96020-7-7
Podaci o skupu
11. Međunarodna konferencija tiskarstva, dizajna i grafičkih komunikacija Blaž Baromić
predavanje
26.09.2007-29.09.2007
Zadar, Hrvatska