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The prevalence of natural organic matter (NOM) in water remains a
huge challenge for water treatment companies and municipalities.
NOM, however, is not a stand-alone problem as it affects water
quality in many ways. NOM is largely responsible for the formation
of disinfection by-products (DBPs) via its interaction with
disinfectants during water disinfection. It is implicated for the
undesirable colour, taste and odour of water and NOM even inhibits
precipitation precursors which form the backbone of drinking water
treatment. There is therefore no question that NOM, which is either
a precursor to or direct cause of the problems highlighted above,
should be considered as one of the critical design parameters to be
considered for drinking water treatment. In our laboratories,
research that involves the use of cyclodextrin (CD) polyurethanes
for the removal of organic pollutants from water has been
extensively investigated, and the CD polyurethanes have
demonstrated the ability to effectively remove the organic species
from water at low (ppb) concentrations.
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