关键词: adsorption;bagasse fly ash;β-naphthalenesulfonic acid

Abstract: Bagasse fly ash was converted into an inexpensive adsorbent and utilized for the removal of
β-naphthalenesulfonic acid in dilute solution. The effect of pH, temperature, adsorbent
concentration, and co-existed acids on the removal ofβ-naphthalenesulfonic acid was
examined. The adsorption data have been correlated with both Langmuir and Freundlich
adsorption models. Thermodynamic parameters obtained indicate the feasibility of the
process, and kinetic studies provided the necessary mechanistic information of the removal
process.

Key words: adsorption, bagasse fly ash, β-naphthalenesulfonic acid