마을하수처리시설의 현장가동효율 실증시험에 관한 연구

Actual Proof Test on the Working Efficiency Verification of the Sewage Treatment Facility in Rural Area

This study was conducted to evaluate the actual proof test on the working efficiency of the sewage treatment facility accoding to processes in rural area by the applied process to select the process fitted to the area and get effective management about the facility. The removal efficiency of the six processes investigated the actual proof test on the working efficiency of the sewage treatment facility after the plant established by items was 71.4% SS, 59.3% COD, 30.2% T-N and 12.6% T-P respectively. So, the removal rate of SS was the highest and these efficiencies was remarkable lower than the noticed information by companies. The removal efficiency by absorbing biofilter process in the six participated processes on the actual proof test on the working efficiency of the facility was analyzed more excellent than the others. Most of the sewage treatment facilities has been high efficient during first one year after the facility established. But thereafter the efficiency taken a sudden turn for the worse. Therefore, the actual proof test on the working sewage treatment facility was very important procedure. The essential problems on the maintenance of the facility were brower stopping by interruption of electric power, much inflow of a detergents and unskilledoperators etc. Hence, it is considered that the systematical control about the facility will be enforced with periodical facilities examination, regular water quality inspection and correspondence management to troubles immediately.