Conceptual study to drainage water and treatment of waste water for the setilement Vrh pri Ljubnu, Mali Podljuben, Dolnje in Gorenje Mraševo

Subject of study are settlement Vrh pri Ljubnu, Mali Podljuben and Gorenje Mraševo in the municipality of Novo mesto and Gorenje Mraševo in the municipality of Straža. The above mentioned villages are detailed conceptual design solutions discharges and wastewater treatment. The three following variants are sewerage systems to individual small treatment plant, sewer system with a common small sewage treatment plant and sewerage system with more common small treatment plants. It was used gravity drainage, in some sections where gravity drainage is not possible, was used evacuation pressure. Due to roughness of terrain are also dealt with domestic wells. \nThe approximate lenght of the designed seweraged system is 4 kilometres. Its actual lenght depends on each possible solution.Presented are procedures in design and construction of fecal sewerage system with all supporting facilities. Especially hydraulic calculation shows fecal sewage and described variants of storm water discharges solutions with the state. In the last part of the study construction costs are calculated, operation and maintenance of each system, and based on cost analysis of selected rational and economically most suitable variant. \n