E2.05 Ma 2019 ReNUWIt Annual Meeting Poster

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Abstract/Contents

Abstract: Electrodialysis and electrodialysis reversal (ED/EDR) have been used for desalination of alternative waters, by separating charged ions with ion- exchange membranes under electric potential. Compared with pressure-driven desalination technologies such as reverse osmosis (RO), ED is more flexible at providing product water with tailored water quality for specific end use purposes. Ion-exchange membranes showed higher tolerance to silica, suspended solids, hardness, free chlorine residue, and organic matters compared to RO membranes. However, fouling and scaling is still considered as a significant challenge for ED to treat impaired waters. Bio-fouling caused by microorganisms and organic fouling caused by natural organic matters degrade ED performance, reduce membrane lifetime, increase cleaning frequency and increase energy consumption. The objective of this project is to develop anti- fouling ion-exchange membranes by surface modification of commercially available ion-exchange membranes (Suez Water Technologies & Solutions) with polymers and nano-materials including TiO2 and graphene oxide (GO).

Type of resource	other
Date created	May 2019

Subject	Re-inventing the Nation’s Urban Water Infrastructure
Subject	ReNUWIt
Subject	E2.05
Subject	Efficient Engineered Systems
Subject	Energy and resource recovery
Subject	BGNDRF
Subject	Las Cruces
Subject	New Mexico

Location	https://purl.stanford.edu/mt008xj7556

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License: This work is licensed under an Open Data Commons Attribution License v1.0.

Preferred Citation: Ma, Guanyu and Tesfai, Million and Wang, Huiyao and Xu, Pei. (2019). E2.05 Ma 2019 ReNUWIt Annual Meeting Poster. Stanford Digital Repository. Available at: https://purl.stanford.edu/mt008xj7556

Re-inventing the Nation's Urban Water Infrastructure (ReNUWIt)

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