Influence of operating conditions on the retention of phenol in water by reverse osmosis SG membrane characterized using Speigler–Kedem model
Year: 2013
Type: article
Abstract: Phenol is one of the most common organic water pollutants and strict standards were imposed for phenol content in water because of their high toxicity. Technologies using membrane processes such as reverse osmosis (RO) are increasingly employed in many industrial sectors as important alternative technologies to classical processes of separation. In this work, the removal of phenol from aqueous solutions was studied on laboratory scale by using a commercial polyamide thin film composite RO membranes spiral wound (SG 2514TF by Osmonics Company). The first objective of this work is to evaluate the characteristics of the SG membrane used in permeation experiments with aqueous solution of charged inorganic solutes. A model inspired by the phenomenological approach proposed by Speigler–Kedem was applied in order to quantify separately both parts of mass transfer occurring, the pure convection and the pure diffusion. The experimental results indicated that the retention sequence was inversely proportional to the salt diffusion coefficients in water. The next objective was to study the retention of phenol by SG. Results show that the retention of phenol by SG membrane exceeds 80%. The effect of the chemical parameters (feed concentration, ionic strength, and pH) and the physical parameters (feed pressure and recovery) was studied.
Source: Desalination and Water Treatment
Authors: Dorra Tabassi, Amine Mnif, Béchir Hamrouni
Institutions: Tunis University, Tunis El Manar University
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $1,000
OpenAlex ID: W2053545000