본 연구에서는 축산폐수와 도시하수를 일정한 비율로 섞어 이단 슬러지 형태의 SBR에 적용시켜 유기물과 질소성분의 부하율에 따른 처리효율을 관찰하고 독립된 질산화조에서 $NH_4^+-N$ 부하율에 따른 질산화 효율을 관찰하였다. 그 결과 TCOD부하율이 $0.25 kg/m^3/day$이하일 경우 TCOD 제거율이 급격히 감소했다. 독립된 질산화조에서는 암모니아의 부하율이 높아짐에 따라 질산화조의 단독 암모니아 제거효율은 낮아지는 경향을 보이지만 전체적인 공정에서는 암모니아의 부하율이 약 $0.23 kg/m^3/day$ 이하에서 안정적인 제거 효율을 보였다. C/N 비의 영향에서 TCOD/T-N 비가 약 4 이하에서는 TCOD/T-N비가 낮아질수록 급격히 T-N제거율이 낮아졌다.
In this study, the mixture of swine wastewater and domestic wastewater was tested using two sludge type SBR and its treatment efficiency was observed based on the loading rates of organic matter and nitrogen. Also, independent nitrification was evaluated by observing separated nitrification reacrtor. From the results, TCOD removal efficiency was drastically decreased when TCOD loading rate was below 0.25 kg $COD/m^3/day$. In the independent nitrification reactor, $NH_4-N$ removal efficiency was gradually decreased as ammonia loading rate was increased. However, in the overall process, the stable $NH_4-N$ removal performance was observed when ammonia leading rate is below $0.23 kg/m^3/day$. On the consideration of influent carbon to nitrogen ratio, T-N removal efficiency was drastically decreased when TCOD/T-N ratio was below 4.
