Journal
DESALINATION AND WATER TREATMENT
Volume 162, Issue -, Pages 112-116Publisher
DESALINATION PUBL
DOI: 10.5004/dwt.2019.24363
Keywords
Boron rejection; Reverse osmosis; Thin-film composite membrane
Categories
Funding
- MOTIE (Ministry of Trade, Industry, and Energy) [10048995]
- KSRC (Korea Semiconductor Research Consortium) support program for the development of the future semiconductor device
Ask authors/readers for more resources
Herein, (+/-)-3-amino-1,2-propandiol (APD) and N-methyl-D-glucamine (NMDG), which have hydroxyl groups, were respectively embedded in thin-film composite (TFC) membranes to enhance boron rejection. The membranes prepared with embedding materials (APD or NMDG) that are involved in interfacial polymerization showed an increased degree of crosslinking, which was confirmed by X-ray photoelectron spectrometry, causing a decrease of surface roughness and water flux. However, the APD and NMDG bound to the inside of the active layer enhanced boron rejection of the TFC membrane to 85.5% and 87.7%, respectively, at pH 8 due to tightening of membrane pores by the enhanced degree of crosslinking and complex formation of the additives with boric acid.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available