중·소규모 생활오수 처리를 위한 합병정화조 개발

Development of Combined Septic Tank for Middle-Small Scale Sewage Treatment

This study aims to develop the combined septic tank for middle-small scale sewage treatment. The developed process were circular and separate type. The circular combined septic tank was controlled sludge discharge and could be modified the advanced treatment system. The separate combined septic tank was could be applicated wastewater that discharge flow was varied, and was could be maintained F/M ratio constantly. The optimum hydraulic retention time was about 16 hours.