Micro Hydropower generation by Discharge water of Dongbu Sewage Treatment Plant in Seogwipo City

This study aims to examine the possibility of Micro hydroelectric power plants by using discharged water from Dongbu Sewage Treatment Plant located in Seogwipo City, Jeju do. The results are as follows; The best location for installing the hydropower plant is at the location of EL(+)2.0, the joint owned surface of the water on the west between discharge flow meter chamber and the surface of the sea water. In calculating the quantity of electric power generation, the amount used is 0.157m3/sec, the average 95day water Flow for the recent 3 years. The effective difference in elevation is 12.41m between discharge flow meter chamber and the location of hydraulic turbine installation. Therefore, the quantity of electric generation is expected to be 14.6kW. The monthly quantity of electric generation is 9.46 MW and the yearly quantity of electric generation is calculated to be 113.53 MW. The type of hydraulic turbine to be applied to the hydro power generation is the hydraulic turbine of low head miniflow. Therefore, it is recommended to choose an all-in-one inline-type hydraulic turbine generator. The recommended capacity is 50kW. The hydropower generation has The system of pollution-free energy production. Because the Jejudo government has promoted the free international city project, the image of Clean Jeju is expected to continuously rise. In addition, sewage disposal plants have been regarded as disgusting facilities. Considering this fact, the hydropower generation is expected to build up the image of friendly natural environment. In a word, this project should be considered to be The project of alternative energy production