Abstract
The purpose of this study was to develop and evaluate rotating biological activated carbon(RBAC) process for nitrogen and phosphorus removal with increasing loading rate. The removal efficiency of $NH_4^+$-N was observed to be higher than 96.5% at all runs, and the relative stable levels of effluent $NH_4^+$-N, $NO_2^-$-N, $NO_3^-$-N could be maintained. The removal efficiency of T-N was observed to be higher than 90%, except RUN 1. The T-P removal efficiency was kept between 32.7% and 49.8%, and the amount of biomass was kept between 269 mg/g support and 473 mg/g support with varying loading rate.
본 연구는 회전생물활성탄 공정을 이용하여 부하를 증가시켜가면서 질소, 인 제거율을 조사하여 이들의 동시제거 가능성을 검토하였다. 암모니아성 질소 제거효율은 96.5% 이상으로 나타났으며 유출수의 암모니아성 질소, 아질산성 질소, 질산성 질소의 농도는 비교적 안정적으로 유지되었다. 총질소 제거율은 RUN 1을 제외하고는 90% 이상을 유지하였다. 총인은 32.7~49.8%의 제거율을 나타내었고 부하의 증가에 따라 부착미생물의 양은 269~473 mg/g support의 범위를 나타내었다.