engleski

The Wastewater of the City of Osijek

The city of Osijek has a combined sewage system. The basic sewage system, constructed at the beginning of this century, is still functioning. With the development of the city, and the increase of the number of citizens and industry, a secondary sewage system was being built accordingly, but this has not been followed with the same intensity by a primary sewage system. The wastewater coming from the city of Osijek and neighbouring urban areas together with the industry wastewater is being discharged into the river Drava without being previously treated. This is causing a significant pollution, worsening the river water quality so that it does not meet the class II. criteria. The fact that the pollution condition of the river Drava is quite serious is causing an urgent need to solve the problem of city wastewater treatment, together with its neighbouring urban areas. The assumption for the previous is the necessity to build the primary sewage system completely. Also, the quality and quantity of wastewater of the city and industry must be known, but with regard to the previous war and recession in the industry, the problem of prognosticating these magnitudes with enough certainty is existent. This paper shows the results of analysis Osijek’ s wastewater, and also points out some problems with regard to the necessity of constructing a wastewater treatment plant.

wastewater; water quality; water quantity; Osijek

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