Application of various plant wastes for the removal of reactive brown18 dye from aqueous solution:Adsorption isotherm study

The potential of some low-cost bio-sorbents were investigated for removal of reactive brown18 R.B18 dye from aqueous solution. In the present study five agricultural wastes palm shell, Musa, Actinidia, Citrus, potato peel powder were used as adsorbent. The adsorbent materials were used without any modification by chemicals. Batch experiments were performed to investigate the effect of physico-chemical parameters, such as pH, adsorbent dose, contact time and initial dyes concentration. The dye removal efficiency was 99.9%. Equilibrium data were analyzed using five isotherm models Langmuir, Freundlich, Tempkin, Redlich–Peterson, Sips . Langmuir and Redlich–Peterson models better represented the adsorption experimental data

کلیدواژه ها:

Reactive dyes ، Brown18 dye ، low-cost bio-sorbents ، Adsorption isotherm