Preparation of blend hydrophilic PSF-SPEEK ultrafiltration membranes for oily wastewater treatment
Authors
Abstract:
Membrane separation is known as an efficient technique for the oily wastewater treatment. Therefore, in the present study, sulfonated poly (ether ether ketone) (SPEEK) was introduced into the polysulfone (PSF) solution in order to enhance the hydrophilicity and the membrane structure for the oil–water separation. The hollow fiber membranes were fabricated via a phase-inversion process. The membranes were characterized by a N2 permeation test, overall porosity, water contact angle, pure water flux and scanning electron microscopy (SEM) analysis. The blend PSF-SPEEK membrane presented an open finger-like morphology with a thicker outer skin layer and smaller pore sizes. The blend membrane showed overall porosity of 78.8% due to the open structure. The outer surface water contact angle of the blend membrane decreased approximately 8º due to the hydrophilic nature of SPEEK. The blend membrane showed N2 permeance of 134 GPU and mean pore size of 22 nm. Improved pure water flux of 9.3 L/m2 h at 400 kPa and the small resistance of 0.483 m2 h bar/L for the blend membrane were related to the higher hydrophilicity and the open structure. The blend membrane showed the oil rejection of over 98% and the stable water flux of 6.5 L/m2 h due to the improved structure.
similar resources
Zwitterion Embedded Thin Film Composite Membrane for Oily Wastewater Treatment
The recent development in oil and gas industry increases the production and consumption of oil. The enormous amount of oily wastewater produced is urged to be treated to prevent humanity and environment from being threatened. Membrane technology is an appealing alternative for oily wastewater treatment due to its design simplicity, energy efficiency and environmentally benign approach. In this ...
full textPreparation and Performance Studies on Polyethersulfone Ultrafiltration Membranes Modified with Gelatin for Treatment of Tannery and Distillery Wastewater
In this study polyethersulfone ultrafiltration membrane were prepared with the modifier gelatin at 0, 5, 10, 15 and 20 wt % using DMF as solvent by phase inversion process. Morphologies and characteristics of the membranes were investigated through the methods of SEM, XRD, contact angle measurements. The performance of the modified membrane for the treatment of leather and distillery wastewater...
full textPreparation and characterization of MWCNT-COOH/PVC ultrafiltration membranes to use in water treatment
Polyvinyl chloride (PVC) membranes containing pristine and modified multiwall carbon nanotube (MWCNT) were prepared and characterized. MWCNT was modified in order to achieve well-dispersion within the membranes. The results of FTIR analysis revealed that MWCNT was successfully carboxylated. The FESEM images indicated that the number of pores on the surface of membranes increased at the presence...
full textAPPLICATION OF EVOLUTIONARY POLYNOMIAL REGRESSION IN ULTRAFILTRATION SYSTEMS CONSIDERING THE EFFECT OF DIFFERENT PARAMETERS ON OILY WASTEWATER TREATMENT
In the present work, the effects of operating conditions including pH, transmembrane pressure, oil concentration, and temperature on fouling resistance and the rejection of turbidity for a polymeric membrane in an ultrafiltration system of wastewater treatment were studied. A new modeling technique called evolutionary polynomial regression (EPR) was investigated. EPR is a method based on regres...
full textPerformance study of ceramic microfiltration membrane for oily wastewater treatment
Cross-flow microfiltration (MF) processes were studied with oily wastewater using a ceramic ( -Al2O3) membrane with 50 nm pore size. The nfluence of parameters such as transmembrane pressure (TMP), cross-flow velocity (CFV), oil concentration in feed, pH and salt concentration n the separation behaviors were investigated by the measurements of permeate flux, total organic carbon (TOC) removal e...
full textMy Resources
Journal title
volume 5 issue Number 1
pages 76- 91
publication date 2018-12-01
By following a journal you will be notified via email when a new issue of this journal is published.
Hosted on Doprax cloud platform doprax.com
copyright © 2015-2023