APPLICATION OF RESPONSE SURFACE METHODOLOGY (RSM) TO OPTIMIZE THE ADSORPTION CONDITIONS OF CATIONIC BASIC YELLOW 2 ONTO PUMICE SAMPLES AS A NEW ADSORBENT


Öztürk D. , Şahan T. , Bayram T. , Erkus A.

FRESENIUS ENVIRONMENTAL BULLETIN, vol.26, no.5, pp.3285-3292, 2017 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 26 Issue: 5
  • Publication Date: 2017
  • Title of Journal : FRESENIUS ENVIRONMENTAL BULLETIN
  • Page Numbers: pp.3285-3292
  • Keywords: Adsorption, Response Surface Methodology, Cationic Dye, Central Composite Design, Pumice, ACTIVATED CARBON, AQUEOUS-SOLUTION, AURAMINE-O, REMOVAL, EQUILIBRIUM, PB(II), IONS, DYE, DESIGN

Abstract

In this study, optimization of medium conditions for CBY2 adsorption by pumice was studied through experimental design. For CBY2 adsorption, initial CBY2 concentration (C-o, mg/L), pH and contact time (min.) were determined as medium conditions. Central Composite Design (CCD) within response surface methodology (RSM) was applied to develop a response surface for optimization of adsorption conditions. The optimum conditions were determined as C-o = 154.28 mg/L, pH = 6.13 and contact time = 47.98 min. Results of experiments determined that at these optimum conditions, optimum adsorbed amount was 12.62 mg/g and adsorption yield was 81.79%. A quadratic model was developed by CCD to represent CBY2 adsorption.