High-silica zeolites for adsorption of organic micro-pollutants in water treatment

High-silica zeolites for adsorption of organic micro-pollutants in water treatment: A review

Jiang, N. (TU Delft Sanitary Engineering)
Shang, R. (TU Delft Sanitary Engineering)
Heijman, Sebastiaan (TU Delft Sanitary Engineering)
Rietveld, L.C. (TU Delft Sanitary Engineering)

2018-11-01

High-silica zeolites have been found to be effective adsorbents for the removal of organic micro-pollutants (OMPs) from impaired water, including various pharmaceuticals, personal care products, industrial chemicals, etc. In this review, the properties and fundamentals of high-silica zeolites are summarised. Recent research on mechanisms and efficiencies of OMP adsorption by high-silica zeolites are reviewed to assess the potential opportunities and challenges for the application of high-silica zeolites for OMP adsorption in water treatment. It is concluded that the adsorption capacities are well-related to surface hydrophobicity/hydrophilicity and structural features, e.g. micropore volume and pore size of high-silica zeolites, as well as the properties of OMPs. By using high-silica zeolites, the undesired competitive adsorption of background organic matter (BOM) in natural water could potentially be prevented. In addition, oxidative regeneration could be applied on-site to restore the adsorption capacity of zeolites for OMPs and prevent the toxic residues from re-entering the environment.

Adsorption
High-silica zeolites
Organic micro-pollutants
Water treatment

http://resolver.tudelft.nl/uuid:78157776-3f56-4e01-bb61-acfcd40c7279

https://doi.org/10.1016/j.watres.2018.07.017

0043-1354

Water Research, 144, 145-161

Institutional Repository

review

© 2018 N. Jiang, R. Shang, Sebastiaan Heijman, L.C. Rietveld