engleski

Effects of activated carbon types on NOM removal from natural waters

Natural waters of eastern Croatia, groundwater and the river Drava water, contain an increased concent ration of natural organic matter (NOM) as a result of complex animal and vegetable dissolving processes in the environment. Since the increased NOM concentration in drinking water causes appearance of yellowish colour and formation of trihalomethanes (THM) during water chlorination, the main task of water-treatment process, is to remove NOM from water which often implies water filtration through activated carbon filters. In order to examine the efficiency of NOM removal from natural waters, four granulated activated carbons were tested and the main factors affecting adsorption efficiency, e.g., carbon dosage, pH and contact time were studied.

NOM removal ; activated carbon ; adsorption

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