The Application of Nanofiltration for Water Reuse in the Hybrid Nanofiltration-Forward Osmosis Process

Zhiyuan Zong, Nick Hankins, Fozia Parveen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)

Abstract

The nanofiltration (NF) process can reject most multivalent charged species and organic molecules yet has a significantly greater permeability than the RO membrane. It demonstrates an excellent potential to hybridize with forward osmosis. The NF module can either act as a pre/post-treatment in the FO system, or it can be installed directly in the FO cell. This chapter demonstrates the performance of a hybrid NF-FO system regarding three important aspects. It includes: (1) the development of a draw solution for the NF-FO system, (2) the NF membrane development, and (3) practical applications of NF-FO systems. Compared to conventional FO and RO systems, the hybrid NF-FO system clearly exhibits an enhanced overall flux rate, a lower energy consumption, and a higher draw solution recovery rate, thus benefiting both treatment efficiency and sustainability. NF has a strong potential to hybridize with other water treatment technologies and deliver efficient, low-energy water recycling processes.

Original languageEnglish
Title of host publicationNanofiltration for Sustainability
Subtitle of host publicationReuse, Recycle and Resource Recovery
PublisherCRC Press
Pages153-170
Number of pages18
ISBN (Electronic)9781000926712
ISBN (Print)9781032199498
DOIs
Publication statusPublished - 1 Jan 2023
Externally publishedYes

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