Nanoparticles as draw solution for forward osmosis processes

Z. Y. Liu; H. W. Bai; D. D. Sun

doi:10.1061/9780784414071.ch06

Nanoparticles as draw solution for forward osmosis processes

Z. Y. Liu
, H. W. Bai
, D. D. Sun

Nanyang Technological University

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

1 Citation (Scopus)

Abstract

This chapter describes a new kind of forward osmosis draw solute, dextran-coated Fe₃O₄ magnetic nanoparticles (DF-MNPs), and evaluates its performance as a draw solute for the forward osmosis (FO) process. DF-MNP combines the advantages of the high osmotic pressure of dextran and the strong magnetism of Fe3O4 MNP. Two key components in the FO process include the FO membrane and the draw solute. This chapter focuses on the draw solute. An ideal draw solute for the FO process should have these characteristics: (1) high osmotic pressure that may generate high water flux, (2) easy recovery with low energy consumption, and (3) minimal reverse diffusion through FO membranes. This study further promotes the FO process as an environmentally friendly process for clean water production. In future research, the properties of DF-MNPs should be further optimized with the aim to further improve osmotic pressure for possible commercial applications.

Original language	English
Title of host publication	Forward Osmosis
Subtitle of host publication	Fundamentals and Applications
Publisher	American Society of Civil Engineers (ASCE)
Pages	115-128
Number of pages	14
ISBN (Electronic)	9780784479230
ISBN (Print)	9780784414071
DOIs	https://doi.org/10.1061/9780784414071.ch06
Publication status	Published - 1 Jan 2015
Externally published	Yes

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AU - Sun, D. D.

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Nanoparticles as draw solution for forward osmosis processes

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