Column performance of carbon nanotube packed bed for methylene blue and orange red dye removal from waste water

29th Symposium of Malaysian Chemical Engineers 2016

Gill, G.K.^1 ; Mubarak, N.M.^2 ; Nizamuddin, S.^3 ; Al-Salim, H.S.^1 ; Sahu, J.N.^4

Department of Chemical and Petroleum Engineering, Faculty of Engineering, UCSI University, Kuala Lumpur

56000, Malaysia^1

Department of Chemical Engineering, Faculty of Engineering and Science, Curtin University, Sarawak

98009, Malaysia^2

Department of Chemical Engineering, Scholl of Engineering RMIT, University Melbourne, 3001, Australia^3

Petroleum and Chemical Engineering Programme Area, Faculty of Engineering, Institut Teknologi Brunei, Tungku Gadong, P.O. Box 2909, Brunei^4

关键词: Adsorption capacities;    Column performance;    Environmental issues;    Equilibrium adsorption;    Optimized conditions;    Process parameters;    Pseudo-second order rates;    Technology fields;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/206/1/012081/pdf
DOI  :  10.1088/1757-899X/206/1/012081

来源: IOP

【 摘 要 】

Environmental issues have always been a major issue among human kind for the past decades. As the time passes by, the technology field has grown and has helped a lot in order to reduce these environmental issues. Industries such as metal plating facilities, mining operations and batteries production are a few examples that involves in the environmental issues. Carbon nanotube is proven to possess excellent adsorption capacity for the removal of methylene blue and orange red dyes. The effect of process parameters such as pH and contact time was investigated The results revealed that optimized conditions for the highest removal for methylene blue (MB) (97%) and orange red (94%) are at pH 10, CNTs dosage of 1 grams, and 15 minutes for each dyes removal respectively. The equilibrium adsorption data obtained was best fit to Freundlich model, while kinetic data can be characterized by the pseudo second-order rate kinetics.