Petroleum Effluent Treatment Using Ultrafiltration Nanocomposite Membrane Made of Polysulfone and Cellulose Nanocrystal

Document Type : Research Paper

Authors

1 PhD Candidate, Dept. of Chemical Engineering, Yasooj Branch, Islamic Azad University, Yasooj, Iran

2 Assist. Prof., Dept. of Chemical Engineering, Membrane Science and Technology Research Center (MSTRC), Gachsaran Branch, Islamic Azad University, Gachsaran, Iran

3 Assist. Prof., Dept. of Chemical Engineering, Yasooj Branch, Islamic Azad University, Yasooj, Iran

Abstract

Petroleum effluent treatment uses ultrafiltration nanocomposite membrane made of polysulfone and cellulose nanocrystal. In this study, nanocomposite membranes were synthesized by adding different amounts of cellulose nanocrystals (CNCs) to polysulfone membrane (PSF) in order to enhance the membrane's anti-fouling properties against the accumulation of oil particles and then synthesize the membrane properties by spectral analysis. Scanning electron microscopy (SEM), infrared spectroscopy FTIR and contact angle test (CA) were applied to investigate membrane morphology. The results showed that the porosity and hydrophilicity of PSF/NC composite membrane were significantly improved. Experiments related to the performance of the petroleum effluent ultrafiltration system have shown that nanocomposite membranes with 1% cellulose nanocrystals (CNCs) increase the water flux by 60%, excreting about 100% of the petroleum compounds, and optimally recovering the water flow to 94.4%. The findings suggest that the newly developed nanocomposite membrane is an optimal choice for treatment of low concentrated oily wastewater.

Keywords


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