Adsorption of Crystal Violet on Activated Carbon Prepared from Coal Flotation Concentrate

World Multidisciplinary Earth Sciences Symposium 2016

Aydogmus, Ramazan^1 ; Depci, Tolga^1 ; Sarikaya, Musa^1 ; Kul, Ali Riza^2 ; Onal, Yunus^3

Department of Mining Engineering, Inonu University, Malatya, Turkey^1

Department of Chemistry, Yuzuncu Yil University, Van, Turkey^2

Department of Chemical Engineering, Inonu University, Malatya, Turkey^3

关键词: Adsorption properties;    Coal flotation;    Crystal violet;    Exposure-time;    Floatability;    Langmuir models;    Power levels;    Surface area;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/44/5/052022/pdf
DOI  :  10.1088/1755-1315/44/5/052022

来源: IOP

【 摘 要 】

The objective of this study is firstly to investigate the floatability properties of Zilan-Van coal after microwave irradiation and secondly to produce activated carbon from flotation concentrate in order to remove Crystal Violet (CV) from waste water. The flotation experiments showed that microwave heating at 0.9 kW power level for 60 sec exposure time enhanced the hydrophobicity and increased the flotation yield. The activated carbon with remarkable surface area (696 m2/g) was produced from the flotation concentrate and used to adsorb CV from aqueous solution in a batch reactor at different temperature. The adsorption properties of CV onto the activated carbon are discussed in terms of the adsorption isotherms (Langmuir and Freundlich) and found that the experimental results best fitted by the Langmuir model.