Ferric chloride modified zeolite in wastewater on Cr (VI) adsorption characteristics

3rd International Conference on Energy Equipment Science and Engineering

Wu, Xiaoqing^1 ; Zhang, Kang^1 ; Chen, Wen^1 ; Zhang, Hua^1

College of Environmental Science and Engineering, Guilin University of Technology, Guilin

541004, China^1

关键词: Acid conditions;    Adsorption reaction;    Ferric chloride;    Fitting accuracy;    Langmuir isotherm models;    Modified zeolite;    Monolayer adsorption;    Pseudo-second-order equations;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/128/1/012142/pdf
DOI  :  10.1088/1755-1315/128/1/012142

来源: IOP

【 摘 要 】

Zeolite was modified by ferric chloride(Fe-Z) removal Cr (VI) ion from wastewater. The results showed that the effect of Cr(VI) adsorption on modified zeolite depended significantly on pH. It is favorable for the adsorption of Cr(VI) in acid condition. The Langmuir isotherm model has high fitting accuracy with experimental data, demonstrated that is monolayer adsorption and chemical adsorption.The pseudo-second-order equation provided the best correlation to the data. The model can describe the adsorption reaction process well.