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The ClO2 oxidation properties examination on iron and manganese example in drinking water treatment | Ispitivanje oksidacionih osobina ClO2 na primeru gvozdja i mangana u tretmanu vode za pice
2008
Milenkovic, N., Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia) | Popovic, L., Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia) | Mitrovic, T., Institut za vodoprivredu Jaroslav Cerni, Beograd (Serbia)
Due to very high concentration of organic matter there is a great need for alternative solutions for drinking water disinfection in the world. Chlorine dioxide has been successfully used for almost 50 years for disinfection and later for taste removal, odor control, color reduction and oxidation of inorganic compounds such as iron and manganese. An advantage of using chlorine dioxide instead of chlorine is that it does not directly react with organic matter and form halogenated byproducts when it is used for disinfection. THMs, such as CHBr3, ChCl3 etc, are considered as most dangerous for people health. In this article we are to represent the results got from raw water disinfection treatment with chlorine dioxide.
Afficher plus [+] Moins [-]Effects of combined treatment on changes in natural organic matter content in groundwater | Efekti primene kombinovanog tretmana na promenu sadrzaja prirodnih orgnaskih [i.e. organskih] materija u podzemnoj vodi
2008
Tubic, A. | Agbaba, J. | Dalmacija, B., Prirodno-matematicki fakultet, Novi Sad (Serbia)
Coagulation and flocculation can be efficiency applied in drinkling water treatment, in order to remove natural organic matter (NOM). However, in the experiments presented in this paper, the water used is very rich in NOM, and required investigations of additional processes. In order to increase the efficiency of coagulation and flocculation processes in removing NOM from groundwater, the following processes were investigated: adsorption on powdered activated carbon (5-30 mg PAC/l) and preozonation with applied ozone doses of 1.1-6.3 mg O3/l. The parameters used to evaluated the changes in NOM content during the experiment were: KMnO4 consumption, UV absorbance at 254 nm, pH and turbidity.
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