Kinetic and thermodynamic modeling for the removal of Direct Red-31 and Direct Orange-26 dyes from aqueous solutions by rice husk

The present study deals with the utilization of an inexpensive agro-industrial waste rice husk for the removal of Direct Red-31 and Direct Orange-26 from aqueous solutions in a batch mode. Experiments were carried out as function of pH, biosorbent dose, particle size of biosorbent, initial dyes conc...

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Veröffentlicht in:	Desalination 2011-05, Vol.272 (1), p.313-322
Hauptverfasser:	Safa, Yusra, Bhatti, Haq Nawaz
Format:	Artikel
Sprache:	eng
Schlagworte:	adsorbents Adsorption agricultural wastes Applied sciences Aqueous solutions binding sites Biological and medical sciences biosorbents Biosorption Biotechnology Chemical engineering desalination Direct dyes Dyes energy enthalpy Entropy equations Equilibrium Exact sciences and technology Fundamental and applied biological sciences. Psychology Kinetics Mathematical models Methods. Procedures. Technologies Oryza sativa Other industrial wastes. Sewage sludge Others particle size Pollution Rice Rice ( Oryza sativa) husk rice hulls scanning electron microscopy sorption isotherms spectroscopy Spontaneous Surface chemistry temperature Thermodynamics Various methods and equipments Wastes
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