CARACTERIZARE INFLUENT - EFLUENT LA O STAŢIE DE EPURARE DE CAPACITATE MICĂ
Characterization of the Inlet and Outlet at a Low Capacity Water Treatment Station

Summary/Abstract: Water polluting entities can be classified mainly in organized and non-organized ones. The quality of water, including waste water can be achieved taking into account anthrop and natural factors. The quality of the inlet water in a city water treatment plant (WTP) is different compared to the inlet quality in case of a small capacity treatment plant. The differences are due to the unitary sewage system in most of the town and cities in Romania. That system consists in collecting household used water and the rain water in the same sewage, resulting in a high degree of variation in the inlet water quality at the entrance in the WTP. The study is carried out on the sewage system of Timişoara city. The study lead to the conclusion that the inlet quality depends on the following: the type of industries connected to the sewage, the meteorological conditions, the season, the day-time of measurements, the materials and length of the sewage, the pomp stations etc. The water quality at the inlet of a city WTP highly depends on polluting accidents, uncontrolled discharges of waste water the presence of dangerous materials such as heavy metals or pesticides, phenomena that can not appear at small WTP-s that treat but household water.

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