Evaluation of thin film composite forward osmosis membranes: effect of polyamide preparation conditions

Drinking Water Engineering and Science Discussions

article

Kadhom, Aya Mohammed¹  Al-Furaiji, Mustafa Hussein²  Abudi, Zaidun Naji¹ 

[1]Environmental Engineering Department, College of Engineering, Mustansiriyah University

[2]Ministry of Science and Technology

DOI  :  10.5194/dwes-14-45-2021

学科分类：工程和技术（综合）

来源: Copernicus Publications

【 摘 要 】

The forward osmosis (FO) process has been considered for desalination as a competitive option with respect to the traditional reverse osmosis process. The interfacial polymerization (IP) reaction between two monomers (i.e., m-phenylenediamine, MPD, and 1,3,5-benzenetricarbonyl chloride, TMC) is typically used to prepare the selective polyamide layer that prevents salts and allows water molecules to pass. In this research, we investigated the effect of preparation conditions (MPD contact time, TMC reaction time, and addition of an amine salt) on the FO performance in terms of water flux and salt flux. The results showed that increasing MPD contact time resulted in a significant increase in the water flux and salt flux. However, increasing TMC reaction time caused a decline in both the water flux and the salt flux. The optimum condition that gave the highest water flux (64 L m −2  h −1 ) was found to be as 5 min for MPD and 1 min for TMC. The addition of an amine salt of camphorsulfonic acid-triethylamine (CSA-TEA) was able to have an apparent effect on the FO process by increasing the water flux (74.5 L m −2  h −1 ).

【 授权许可】

CC BY