Removal of textile dye in aqueous titleenvironments by adsorption on ion exchange resin

Abstract

In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well.

In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well. In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well. In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well. In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well. In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well. In the present work, the efficacy of the A502PS ion exchange resin in the removal of textile dye namely eversol black (GR) was investigated. The absorption was studied in a batch system at ambient temperature .The effects of solution mass of adsorbent (100-400 mg/L), pH, (2-12), ionic strength and stirring speed were monitored. The kinetic of adsorption was also considered. Results showed that the adsorption was very rapid with increasing concentration, and equilibrium was attained within 500 minutes for 100 mg of adsorbent and at 350 minutes in the case of 400 mg of adsorbent. The adsorption capacity increases with the increase of the adsorbent amount and the maximum adsorption capacity for 400 mg and 100 mg was 98.2% and 74.65%, respectively. The results showed that the absorption kinetics and equilibrium time depend on the mass of adsorbent, the stirring speed and the ionic strength of the salts. The study of the effect of pH revealed that the adsorption of dye is more important for low pH values where the removal increases from 87.2 to 96.05% for pH = 12 and pH = 2 respectively. Finally, the kinetic study revealed that the Pseudo-first order chemical reaction provided the best correlation of the experimental data and the GR adsorption equilibrium fits the Langmuir model well.