Author/Editor     Družina, Branko; Perc, Andrej
Title     Kaj vse je lahko v vodi in kako postane voda pitna (1. del)
Translated title     What all water might contain and how water becomes drinkable
Type     članek
Source     Kem šoli
Vol. and No.     Letnik 12, št. 1
Publication year     2000
Volume     str. 13-9
Language     slo
Abstract     The article explains the Slovenian laws on drinking water. The tables show the values of the levels of various parameters, microbiological as well as physical and chemical, which are permissible for water to be defined as drinking water under current Iaws. The basic methods of systematic monitoring of drinking water are described, as are the number and type of investigations concerning the quantities of water distributed from an individual water distribution system. The types of drinking water and the differences in the investigations of individual sources are described as well. Comparisons are made for some of the parameters in five Slovenian underground reservoirs, for which the basic characteristics are also described. In the chapter on processing water and rendering it drinkable, the main processes are only mentioned, while the final stage of processing drinking water, namely disinfection, is explained in greater detail. The main conditions for effective disinfection are shown, as well as the properties of the disinfectants. Some chemical disinfectants, such as chlorine, chlorine dioxide and ozone, which are most frequently used in preparing drinking water in Slovenian water supply systems, are well described. The devices for dosing these agents are also described. The reasons for preventive disinfection of drinking water are explained. The main activities concerning the protection of the water sources used for obtaining drinking water are listed, as well as the activities prohibited by current laws in protected areas where underground sources of drinking water are located. The chapter on individual water sources gives an overview of the sources, their management and their exploitation.
Descriptors     WATER POLLUTANTS
WATER SUPPLY
FRESH WATER
WATER MICROBIOLOGY