期刊
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
卷 40, 期 8, 页码 2153-2168出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s13369-015-1751-5
关键词
Color removal; Multi-nonlinear regression; ANOVA; Ultrasonic irradiation; Isotherms; Kinetics
资金
- Turkish State Planning Organization [DPT 2009K 120 410]
Cottonseed cake as a domestic feed and a byproduct of textile industry was utilized as a novel adsorbent for the decolorization of Yellow F3R (YF3R), Di Maria Brilliant BlueR(DBBR) and ReactiveBrilliant RedM-3BE (Red F3B) aqueous solutions based on a rapid and efficient process of ultrasound-assisted adsorption. This study aimed to model the effects of the five factors on decolorization efficiency by response surface methodology: temperature, initial pH, reaction time, concentrations of initial dyestuff and adsorbent. A Box-Behnken design with five factors at three levels was used to set the experimental schedule. The maximum decolorization efficiency was obtained consistently at the lowest initial pH (2), the highest reaction time (30 min) and adsorbent concentration (1.5 g/L). Analysis of variance and the best-fit multiple nonlinear regression models were cross-validated (R-pred(2)) accounting for 90.03-93.94% of variation in decolorization efficiency. The decolorization of YF3R, DBBR and Red F3B on cottonseed cake fitted well pseudosecond-order kinetic mechanism and Langmuir isotherm and it was found to be of endothermic and spontaneous nature.
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