Novel Solar Photocatalytic Reactor for Wastewater Treatment

2nd Materials Research Society of Indonesia Meeting

Sutisna^1,2 ; Rokhmat, M.^1 ; Wibowo, E.^1 ; Murniati, R.^1 ; Khairurrijal^1 ; Abdullah, M.^1

Department of Physics, Faculty of Mathematical and Natural Sciences, Bandung Institute of Technology, Jalan Ganeca 10, Bandung

40132, Indonesia^1

Department of Physics, Faculty of Mathematical and Natural Sciences, Jember University, Jalan Kalimantan 37, Jember, Indonesia^2

关键词: Catalyst granules;    Degradation kinetics;    Langmuir-Hinshelwood models;    Photocatalytic reactors;    Photodegradation rate;    Pseudo-first-order;    Solar irradiation;    TiO2 nano-particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/214/1/012010/pdf
DOI  :  10.1088/1757-899X/214/1/012010

来源: IOP

【 摘 要 】

A new solar photocatalytic reactor (photoreactor) using TiO2nanoparticles coated onto plastic granules has been designed. Catalyst granules are placed into the cavity of a reactor panel made of glass. A pump is used to circulate wastewater in the photoreactor. Methylene blue (MB) dissolved in water was chosen as the wastewater model. The performance of the photoreactor was evaluated based on changes in MB concentration with respect to time. The photoreactor showed a good performance by degrading 10 L of MB solution up to 96.54% after 48 h of solar irradiation. The photoreactor was scaled up by enlarging the panel area to twice its original size. The increase in the surface area of the reactor panel and therefore of the mass of catalyst granules and reactor volume led to a three-fold increase of the photodegradation rate. In addition, the MB degradation kinetics were also studied. Data analysis confirmed the applicability of the pseudo-first-order Langmuir-Hinshelwood model. The proposed photoreactor has great potential for use in large-scale wastewater treatment.