ORIGINAL RESEARCH
Effect of Oxidation with Chlorine Dioxide
on the Adsorption of Natural Organic Matter
on Granular Activated Carbon
J. Świetlik, U. Raczyk-Stanisławiak, S. Biłozor, W. Ilecki, J. Nawrocki*
Adam Mickiewicz University, Faculty of Chemistry, Department of Water Treatment Technology,
ul. Michaµa Drzymaµy 24, 60-613 Pozna., Poland
ul. Michaµa Drzymaµy 24, 60-613 Pozna., Poland
Pol. J. Environ. Stud. 2002;11(4):435-439
KEYWORDS
ABSTRACT
Chlorine dioxide is widely used as a pre-oxidant and disinfectant but it has the disadvantage of inducing the
formation of the inorganic by-products chlorites and chlorates. It is therefore of interest to decrease the
chlorine dioxide demand and oxidation, and/or removal of natural organic matter (NOM). The objective of
this study was to estimate the efficiency of the adsorption of oxidised and unoxidised NOM on granular
activated carbon (GAC) filters. For this purpose, three pairs of columns filled with three types of GAC were
set. The study showed that the efficiency of adsorption increased after the pre-oxidation of NOM with ClO2.
GAC filters also efficiently removed the unwanted inorganic by-products.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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