Title : Thin film nanocomposite membranes: Evaluation of performance for the treatment of textile wastewater
Abstract:
The use of thin-film nanocomposite membranes in the partitioning of dye/salt mixtures holds significant importance for the treatment and subsequent reuse of textile industry wastewater. The objective of this work is to investigate the effects of membrane properties on the removal of cationic, anionic, and neutral dyes from dye/salt mixtures using thin-film nanocomposite membranes. The study involves the fabrication of thin-film nanocomposite membranes of different compositions utilizing an aqueous solution of mphenylenediamine as the amine monomer and an organic solution of 1,3,5-benzene tricarbonyl trichloride containing ceramic nanofillers. The physical, chemical, and performance properties of the fabricated membranes were characterized. The membranes were then used in dye removal experiments with cationic, anionic, and neutral dyes aqueous and NaCl solutions, with varying operational parameters. The dye/salt removal rates and water permeate flux were measured and related to the membrane properties. The study found that membrane properties played a crucial role in the dye removal rate, water permeate flux, and their variation under different operational conditions. Specifically, the membrane surface roughness and hydrophilicity were the most significant membrane properties affecting the dye/salt separation efficiency. This study provides new insights into the current state of knowledge in using thinfilm nanocomposite membranes for the treatment and reuse of wastewater in the textile industry.
