Changes in selected quality parameters during the treatment and distribution of water

Abstract

AbstractThe main goal of water treatment plants is water intake from water’s natural sources and its preparation for consumers. After the water treatment process, water has to meet requirements of legal standards regarding chemical and microbiological composition. The quality of water from water pipes depends on: its initial composition, the way of treatment, storage, the condition of water system, terminal, and plumbing. The choice of the technological process of water treatment depends on raw water quality, which is often different at the consumer’s tap from the one delivered to the distribution system since water undergoes complex physical, chemical, and biological processes. This results in, so-called, secondary water contamination in a distribution system. In this article, the value changes of selected chemical water quality parameters have been presented during both ozone and sodium hypochlorite disinfection. Water samples were collected from underground water intakes. The results showed that disinf...