Removal of crystal violet using nanozeolite-x from aqueous solution: central composite design optimization study
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 534
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شناسه ملی سند علمی:
JR_JWENT-4-1_004
تاریخ نمایه سازی: 25 خرداد 1398
چکیده مقاله:
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 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.
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نویسندگان
siroos shojaei
Young Researchers and Elite Club, Zahedan Branch, Islamic Azad University, Zahedan, Iran. E-mail address: shojaeisiroos@gmail.com
Jamal Ahmadi
Department of Chemical Engineering, Amirkabir University of Technology (Tehran polytechnic).
Meysam Davoodabadi Farahani
PhD in Mining Engineering, Faculty of mining, petroleum and geophysics engineering, Shahrood university of technology, Shahrood, Iran.
Bentolhoda Mehdizadehd
Department of Medical Engineering, Islamic Azad University, South Tehran Branch, Tehran, Iran.
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