Removal of Methylene Blue from aqueous solution using spent bleaching earth

2nd International Conference on Oleo and Petrochemical Engineering

Saputra, E.^1 ; Saputra, R.^1 ; Nugraha, M.W.^1 ; Irianty, R.S.^1 ; Utama, P.S.^1

Chemical Engineering Department, Engineering Faculty, Riau University, Pekanbaru, Riau, Indonesia^1

关键词: Adsorption capacities;    Environmental problems;    Industrial textiles;    Langmuir isotherm;    Methylene Blue;    Removal efficiencies;    Spent bleaching earth;    Stirring speed;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/345/1/012008/pdf
DOI  :  10.1088/1757-899X/345/1/012008

来源: IOP

【 摘 要 】

The waste from industrial textile waste is one of the environmental problems, it is required effective and efficient processing. In this study spent bleaching earth was used as absorbent. It was found that the absorbent was effective to remove methylene blue from aqueous solution with removal efficiency 99.97 % in 120 min. Several parameters such as pH, amount of absorbent loading, stirring speed are found as key factor influencing removal of methylene blue. The mechanism of adsorption was also studied, and it was found that Langmuir isotherm fitted to data of experiment with adsorption capacity 0.5 mg/g.