연속 회분식 반응기와 연속 회분식 생물막 반응기의 유기물, 질소 및 인의 동시 제거에 관한 비교 연구
A Comparison Study on the Simultaneous Organic, Nitrogen and Phosphorus Removal in Sequencing Batch Reactor and Sequencing Batch Biofilm Reactor
Laboratory scale experiments were conducted to study the applicability, and to compare the performance of two types of sequencing batch reactor (SBR)systems, a conventional SBR and sequencing batch biofilm reactor (SBBR) on the biological nitrogen and phosphorus removal. The nitrification rate in SBR was higher than that in SBBR both in high influent TOC concentration. The denitrification was completed at the first non-aeration period in SBR, however, the additional non-aeration period should be installed or the first aeration period should be extended more in order to complete the nitrogen removal in SBBR. The time at the first aeration was more needed as about 4-5 h in order to uptake all the released PO43--P at the first non-aeration period. SBBR needed more operation time, especially the first aeration time, than SBR at the high influent TOC concentration in order to complete nitrogen and phosphorus removal.
Ⅲ. 결과 및 고찰