Performance Evaluation and Kinetic Analysis of Photocatalytic Membrane Reactor in Wastewater Treatment

Membranes

Shaaban Nosier¹  Mahmoud M. Taha¹  Ahmed H. El-Shazly¹  Zeyad Zeitoun¹  Mohamed S. Salem²  Mohamed R. Elmarghany² 

[1] Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria 11432, Egypt;Mechanical Power Engineering Department, Faculty of Engineering, Mansoura University, Mansoura 35516, Egypt;

关键词: photocatalytic membrane reactor;    wastewater treatment;    titanium dioxide;    photocatalysis;    membrane distillation;    polyvinylidene fluoride (PVDF);   

DOI  :  10.3390/membranes10100276

来源: DOAJ

【 摘 要 】

The objectives of the current study are to assess and compare the performance of a developed photocatalytic membrane reactor (PMR) in treating industrial waste (e.g., organic dye waste) against membrane distillation. The current PMR is composed of a feed tank, which is a continuous stirred photocatalytic reactor containing slurry Titanium dioxide (TiO₂) particles that are activated by using ultraviolet lamp irradiation at a wavelength of 365 nm, and a poly-vinylidene flouride (PVDF) membrane cell. The experimental setup was designed in a flexible way to enable both separate and integrated investigations of the photocatalytic reactor and the membrane, separately and simultaneously. The experimental work was divided into two phases. Firstly, the PVDF membrane was fabricated and characterized to examine its morphology, surface charge, and hydrophobicity by using a scanning electron microscope, surface zeta potential, and contact angle tests, respectively. Secondly, the effects of using different concentrations of the TiO₂ photocatalyst and feed (e.g., dye concentration) were examined. It is found that the PMR can achieve almost 100% dye removal and pure permeate is obtained at certain conditions. Additionally, a kinetic analysis was performed and revealed that the photocatalytic degradation of dye follows a pseudo-first-order reaction.

【 授权许可】

Unknown