Batch and fixed bed column studies on removal of Orange G acid dye by a weak base functionalized polymer

被引：16

作者：

Dulman, Viorica ^{[1
]}

Cucu-Man, Simona-Maria ^{[1
]}

Bunia, Ion ^{[2
]}

Dumitras, Mihai ^{[1
]}

机构：

[1] Alexandru Ioan Cuza Univ, Fac Chem, Dept Chem, 11 Carol I Bd, Iasi 700506, Romania

[2] P Poni Inst Macromol Chem, 41A Grigore Ghica Voda Alley, Iasi 700487, Romania

来源：

DESALINATION AND WATER TREATMENT | 2016年 / 57卷 / 31期

关键词：

Kinetics; Anion-exchange resin; Isotherms; Orange G; Column; Adsorption; AQUEOUS-SOLUTIONS; ACTIVATED CARBON; ANIONIC DYES; ADSORPTION BEHAVIOR; EQUILIBRIUM; CHITOSAN; SORPTION; BLUE; DECOLORIZATION; ADSORBENTS;

D O I：

10.1080/19443994.2015.1065767

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The performance of a weak base anion-exchange resin in removing Orange G dye from aqueous solutions in batch and column system was investigated. The adsorption capacity was found to depend on: pH, dye concentration, contact time, adsorbent dosage, electrolyte presence and temperature. The adsorption equilibrium is best described by the non-linear Langmuir isotherm model. At the optimum pH of 2, the maximum adsorption capacity was 1,076 and 1,218mgg(-1), at 20 and 50 degrees C, respectively. The adsorption kinetics could be described by the pseudo-second-order reaction model. The thermodynamic parameters indicated that adsorption is a spontaneous and endothermic process. FT-IR and SEM analyses provided additional information on adsorption mechanism and on morphological changes of the adsorbent. The breakthrough experimental results were processed by means of Thomas, Yoon-Nelson and Wolborska models. The reusability of the column was examined by conducting several cycles of adsorption and desorption (with 0.05M NaOH).

引用

页码：14708 / 14727

页数：20

共 57 条

[41] Sorption of Textile Dye from Aqueous Solution by Macroporous Amino-Functionalized Copolymer [J].