A kinetic study on cadmium adsorption from aqueous solutions by pre-conditioned phosphogypsum
DESALINATION AND WATER TREATMENT, cilt.57, sa.6, ss.2515-2521, 2016 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 57 Sayı: 6
- Basım Tarihi: 2016
- Doi Numarası: 10.1080/19443994.2015.1038854
- Dergi Adı: DESALINATION AND WATER TREATMENT
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.2515-2521
- Anahtar Kelimeler: Adsorption, Cadmium, Kinetics, Phosphogypsum, Reuse, CEIBA-PENTANDRA HULLS, ACTIVATED CARBON, METHYLENE-BLUE, LEAD REMOVAL, FLY-ASH, EQUILIBRIUM, IONS, ZINC, PARAMETERS, MECHANISM
- Ondokuz Mayıs Üniversitesi Adresli: Evet
Özet
In the present study, the effect of contact time, adsorbent dosage, and initial cadmium concentration on the adsorption of Cd(II) ions from aqueous solutions by pre-conditioned phosphogypsum was investigated. The kinetics of adsorption was studied and, pseudo-first-order, pseudo-second-order, and Elovich models were used to fit the experimental data, which was obtained from batch experiments. The kinetic adsorption data fitted well into the second-order kinetic model. Adsorption mechanism was explained with the intraparticle diffusion and Boyd kinetic models.