Adsorption Effect of Cetyltrimethyl-ammonium Bromide Modified Fly Ash on Methyl Orange Waste Water

3rd International Conference on Manufacturing, Material and Metallurgical Engineering

机械制造;材料科学;冶金学

Liu, Dongji^1 ; Yang, Yuling^1 ; Zhao, Fengqing^2

Department of Chemical Engineering, Hebei University of Science and Technology, Shijiazhuang

050018, China^1

Hebei Engineering Research Center of Solid Waste Utilization, Shijiazhuang

050000, China^2

关键词: Adsorption effect;    Cetyl trimethyl ammonium bromides;    Mass ratio;    Methyl Orange;    Modification temperature;    Modified fly ash;    Removal rate;    Resource utilizations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/409/1/012006/pdf
DOI  :  10.1088/1757-899X/409/1/012006

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Fly ash is a solid waste from power plant, which will pollute the environment if not handled properly. The modification of fly ash as an adsorbent is an ideal method of resource utilization. In this paper, fly ash was firstly treated with cetyltrimethy-lammonium bromide (CTAB), and then further stabilized to obtain the final adsorbent product. The proper treating conditions are obtained: mass ratio of CTAB to fly ash 0.017, modification temperature 32°C, and time 1 h. The removal rate for methyl orange with the modified fly ash stabilized by drying at 100 °C is up to 93.2 %, which is higher than that calcined at 500 °C. The adsorption effect of the modified fly ash is much better than that of unmodified fly ash.