ABSTRACT
The potential of modified peach stone for Cr (VI) removal from wastewater was explored in this work. The properties of the materials were characterized by SEM, TGA, FT-IR, EDX and elemental analysis. It was found that 3 g/L EPS was good enough for removal of Cr (VI) in feed solution, with the maximum adsorption capacity was 24.68 mg/g. The pseudo-second-order kinetic model and Langmuir adsorption model was well fitted with adsorption data. In addition, EPS could be reused for sustainable operation for a number of cycles. All results confirm that EPS has potential for the removal of Cr (VI).
Acknowledgments
This work was supported by Science and Technology Key R&D Project “Integrated R&D and Demonstration of Wastewater Treatment Stabilization Standards in Typical Industrial Clusters” of Sichuan Province (18ZDYF0051).