Title of article
Removal of crystal violet using nanozeolite-x from aqueous solution: central composite design optimization study
Author/Authors
shojaei ، siroos - Islamic Azad University, Zahedan Branch , Ahmadi ، Jamal - Amirkabir University of Technology (Tehran polytechnic). , Davoodabadi Farahani ، Meysam - Shahrood university of technology , Mehdizadehd ، Bentolhoda - Islamic Azad University, South Tehran Branch , Pirkamali ، Mohammadreza - Islamic Azad University, Zahedan Branch
Pages
8
From page
40
To page
47
Abstract
The remaining dye in the wastewater is not desirable as it damages the ecosystem and nature, and also is very toxic. The Crystal Violet (CV) dye is toxic and potentially carcinogenic. In addition, it reduces light in water and prevents the process of photosynthesis of aquatic plants. Therefore, nanozeolite-X (NX) was utilized as an adsorbent to remove the Crystal Violet (CV); effects of pH, catalyst mass, sonication time, and concentration of dye were also investigated. Effects of variables on the removal efficiency were studied via the Central Composite Design (CCD) to determine the dye removal percentage. The quadratic model was selected to predict the removal efficiency using the software. Optimal conditions for CV removal from aqueous solution were: pH= 8, sonication time= 6 min, concentration of dye= 13 mg L-1, and catalyst mass= 0.26 g. In these circumstances, the recovery efficiency was 97.60%. The research results indicated that NX could be applied potentially for CV removal.
Keywords
Central Composite Design , Crystal Violet , Environmental , Experimental Design , Nanozeolite , X
Journal title
Journal of Water and Environmental Nanotechnology
Serial Year
2019
Journal title
Journal of Water and Environmental Nanotechnology
Record number
2473736
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