Response surface methodology (RSM) based on three-variable-three-level Box–Behnken design was
employed to interpret the adsorption characteristics of Acid Black 1 (AB1) dye onto three brown macroalgae
viz., Nizamuddin zanardini, Sargassum glaucescens and Stoechospermum marginatum. The effects of
three independent variables, viz. biomass dosage, dye concentration, and initial solution pH were studied
for the removal of AB1 dye by the three macroalgae. A second-order polynomial model successfully
described the effects of independent variables on the AB1 dye removal. The maximum experimental dye
removal efficiency of 99.27, 98.12 and 97.62% for N. zanardini, S. glaucescens and S. marginatum, respectively,
was obtained, which was in agreement with the calculated values. The results of the present study
suggest that these macroalgae can be used as an efficient biosorbents for dye removal from aqueous
solution.
کلید واژگان :
Response surface methodology (RSM), Macroalgae, Acid Black 1 dye, Biosorption
