Title :
Acid pretreated bagasse as a suitable biosorbent for direct red 81 removal
Author :
Aly, A.A.M. ; Said, A.A. ; El-Hafez, A. A Abd ; Goda, M.N. ; Helmey, V.
Author_Institution :
Chem. Dept., Assiut Univ., Assiut, Egypt
Abstract :
In order to enhance the sorption capacity of bagasse on direct red 81, it was treated with four acids, namely palmitic, stearic, oleic and propionic acids. The effects of various experimental variables pH, sorbent dose, initial dye concentration and contact time were investigated. The kinetics of dye adsorption fit well with the pseudo-second-order kinetic model and it obeys the Langmiur equation.
Keywords :
dyes; sorption; Langmiur equation; acid pretreated bagasse; biosorbent; contact time; direct red 81 removal; dye adsorption kinetics; experimental variables pH; initial dye concentration; oleic acid; palmitic acid; propionic acid; pseudo-second-order kinetic model; sorbent dose; sorption capacity; stearic acid; Biological system modeling; Chemistry; direct red 81; sorption kinetics; variable effects;
Conference_Titel :
Environmental Engineering and Applications (ICEEA), 2010 International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-8619-9
Electronic_ISBN :
978-1-4244-8621-2
DOI :
10.1109/ICEEA.2010.5596115
