TY - JOUR
T1 - High-silica zeolites for adsorption of organic micro-pollutants in water treatment
T2 - A review
AU - Jiang, Nan
AU - Shang, Ran
AU - Heijman, Sebastiaan G.J.
AU - Rietveld, Luuk C.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - 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.
AB - 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.
KW - Adsorption
KW - High-silica zeolites
KW - Organic micro-pollutants
KW - Water treatment
UR - http://www.scopus.com/inward/record.url?scp=85053068781&partnerID=8YFLogxK
UR - http://resolver.tudelft.nl/uuid:78157776-3f56-4e01-bb61-acfcd40c7279
U2 - 10.1016/j.watres.2018.07.017
DO - 10.1016/j.watres.2018.07.017
M3 - Review article
AN - SCOPUS:85053068781
SN - 0043-1354
VL - 144
SP - 145
EP - 161
JO - Water Research
JF - Water Research
ER -