Alternative sewerage and waste-water treatment solutions for thevillages of Poletiči and Beli Kamen

This thesis presents a project of drainage for different types of discharges and waste water treatment for the villages of Poletici and Beli Kamen. The work contains descriptions of consents issued under existing legislation, that the projectant is obliged to obtain from the state and municipal authorities, and authorized public services. The waste water treatment is selected and dimensioned with regard to demographic and geographic characteristics. Three different solutions exist. One represents the discharge of waste water from both settlements in a mono-drainage system, with a typical pumping station in Poletici. The second and the third possible solutions present the cleaning of waste water from Poletici with a standard cleaning installation (SBR) or a vegetal cleaning system (both 100 PE). Waste water from the settlement of Beli Kamen is drained via existing sewerage system Gracisce to Kubed treatment plant. Hydraulic calculation of waste water and rain water is presented seperately. Rain water hydraulic calculations for both agglomerations were performed with the help of Sewer+. The final selection of an optimal solution was made by reciprocal comparison of advantages and disadvantages of different solutions with regard to cost comparison.