Equilibrium and kinetic modelling of biosorption of Remazol Black B by Rhizopus arrhizus in a batch system: effect of temperature

Abstract The biosorption of Remazol Black B, a vinyl sulphone type reactive dye, from aqueous solutions on dried Rhizopus arrhizus was studied in a batch system with respect to the temperature, initial pH and initial dye concentration. The fungal biomass exhibited the highest dye uptake capacity at 35°C, at the initial pH value of 2.0 and at the initial dye concentration of 800 mg l −1 . The Freundlich and Langmuir adsorption models were used for the mathematical description of the biosorption equilibrium and isotherm constants were evaluated at different temperatures. Equilibrium data fitted very well to the Freundlich model in the studied concentration (20–800 mg l −1 ) and temperature (25–55°C) ranges. The pseudo first- and second-order kinetic models were also applied to the experimental data assuming that the external mas transfer limitations in the system can be neglected and biosorption is chemisorption controlled. The results indicated that the dye uptake process followed the pseudo second-order rate expression and adsorption rate constants increased with increasing temperature up to 35°C and decreased with increasing concentration.

[1]  Z. Aksu,et al.  Biosorption of iron(III)–cyanide complex anions to Rhizopus arrhizus: application of adsorption isotherms , 1999 .

[2]  Y. Ho,et al.  Biosorption of Copper from Waste Waters: A Review , 1999 .

[3]  M. S. El-Geundi,et al.  Colour removal from textile effluents by adsorption techniques , 1991 .

[4]  Z. Aksu,et al.  A COMPARATIVE STUDY FOR THE SIMULTANEOUS BIOSORPTION OF CR(VI) AND FE(III)ON C. VULGARIS AND R. ARRHIZUS : APPLICATION OF THE COMPETITIVE ADSORPTION MODELS , 1998 .

[5]  Y. Ho,et al.  Comparative sorption kinetic studies of dye and aromatic compounds onto fly ash , 1999 .

[6]  Ashutosh,et al.  Colour removal from a dyestuff industry effluent using activated carbon , 1994 .

[7]  A. J. Pik.  Handbook of environmental chemistry, anthropogenic compounds: Vol. 3 Part A, edited by O. Hutzinger. Springer-Verlag, Berlin. 1980. 274 pp., 61 Figures, 1642 References, $62.00 , 1981 .

[8]  L. C. Morais,et al.  Reactive dyes removal from wastewaters by adsorption on eucalyptus bark: variables that define the process , 1999 .

[9]  J. P. Bell,et al.  Comparison of the biosorption and desorption of hazardous organic pollutants by live and dead biomass , 1989 .

[10]  Gordon McKay,et al.  The Sorption of Lead(II) Ions on Peat , 1999 .

[11]  Feng-Chin Wu,et al.  Adsorption behavior of reactive dyes from aqueous solutions on chitosan , 1997 .

[12]  K W Kolasniski,et al.  ZUR THEORIE DER SOGENANNTEN ADSORPTION GELÖSTER STOFFE. KUNGLIGA SVENSKA VETENSKAPSAKADEMIENS , 2001 .

[13]  K. Low,et al.  Quaternized rice husk as sorbent for reactive dyes , 1997 .

[14]  C. Banks,et al.  The mechanism and application of fungal biosorption to colour removal from raw waters , 1992 .

[15]  K. Low,et al.  Removal of Some Organic Dyes by Acid-Treated Spent Bleaching Earth , 1999 .

[16]  R. Anliker,et al.  Organic Dyes and Pigments , 1980 .

[17]  Y. Ho,et al.  Pseudo-second order model for sorption processes , 1999 .

[18]  T. Hu.  Sorption of Reactive Dyes by Aeromonas biomass , 1992 .

[19]  W. Zimmermann,et al.  Decolorization of industrial effluents containing reactive dyes by actinomycetes. , 1993, FEMS microbiology letters.

[20]  Tai-Lee Hu,et al.  Removal of reactive dyes from aqueous solution by different bacterial genera , 1996 .

[21]  Z. Aksu,et al.  INVESTIGATION OF THE BIOSORPTION OF PHENOL AND MONOCHLORINATED PHENOLS ON THE DRIED ACTIVATED SLUDGE , 1998 .