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Membrane Water Treatment
  Volume 9, Number 5, September 2018 , pages 309-315
DOI: https://doi.org/10.12989/mwt.2018.9.5.309
 


Application of Box Wilson experimental design method for removal of acid red 95 using ultrafiltration membrane
Ezgi Oktav Akdemir

 
Abstract
    The applicability of the ultrafiltration process for color removal from dye-containing water has been examined in this study. The optimization of major process variables, such as dye concentration, chitosan concentration and transmembrane pressure on permeate flux and color removal efficiency was investigated. To find the most appropriate results for the experiment, the Box-Wilson experimental design method was employed. The results were correlated by a response function and the coefficients were determined by regression analysis. Permeate flux variation and color removal efficiency determined from the response functions were in good agreement with the experimental results. The optimum conditions of chitosan concentration, dye concentration and pressure were 50 mg/l, 50 mg/l and 3 bars, respectively for the highest permeate flux. On the other hand, optimum conditions for color removal efficiency were determined as 50 mg/l of dye concentration, 50 mg/l of chitosan concentration and 1 bar of pressure.
 
Key Words
    Box-Wilson experimental design; chitosan; decolorization; dye; ultrafiltration
 
Address
Dokuz Eylul University, Engineering Faculty, Department of Environmental Engineering, Tinaztepe Campus, 35160 Buca, Izmir, Turkey
 

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