Journal
JOURNAL OF WATER PROCESS ENGINEERING
Volume 16, Issue -, Pages 132-141Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jwpe.2017.01.001
Keywords
Mixed metal ferrites; Nanoparticles; Full factorial design; Optimization; Waste water
Funding
- University of Nizwa, Sultanate of Oman [A/14-15-UoN/10/CAS/IF]
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Among various kinds of pollutants released into the environment, dyes are considered as one of the most hazardous contaminant. A mixed metal magnetic Ni0.5Co0.5Fe2O4 nanoparticles were successfully used as an adsorbent for the uptake of Crystal Violet (CV) dye from aqueous solution. A 2(5) full factorial design was applied to investigate the effect of multiple process variables on the% dye removal efficiency. The experimental values were found to be in excellent conformity with the model predicted values. The optimum values of the tested parameters for maximum removal of CV dye from aqueous solution were obtained as follows: pH =11.0; Initial concentration of dye =13.57 mg/L; Adsorbent amount = 0.089 g; contact time =35 min; and Temperature = 22 degrees C. The R-2 value 99.86% shows the satisfactory explanatory power of model. This may provide theoretical basis for further research and utilization of newly designed adsorbent for the uptake of various kinds of dyes from waste water. (C) 2017 Elsevier Ltd. All rights reserved.
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