논문 상세보기
pp.535-550
Total organic carbon (TOC) will replace chemical oxygen demand (CODMn) as an effluent water quality standard in public sewage treatment works (PSTWs) from 2021 in Korea. To ensure effective control of TOC in the effluent, investigation was carried out into TOC levels and sewage treatment operation factors in five target PSTWs using anaerobic-anoxic-aerobic (A2O) processes, media, membrane, and sequencing batch reactor (SBR) technologies. TOC removal efficiencies appeared to be 93-96% on average. As a fraction of TOC, biodegradable dissolved organic carbon (BDOC) was reduced from 64% in the influent to 9% in the effluent in these PSTWs. During the investigation, biological treatment processes were applied flexibly for operation factors such as HRT, SRT, MLSS, F/M ratios and BOD volume loads, based on the influent characteristics and design conditions. As a result, we suggest efficient operating conditions in PSTWs by evaluating relationships between TOC removal and operation factors.
1. 서 론
2. 연구방법
2.1 조사대상 하수처리시설
2.2 시료채취 및 분석방법
3. 결과 및 고찰
3.1 하수처리시설 TOC 처리효율
3.2 하수처리시설 공정별 TOC 거동 및 공정상태 분석
3.3 하수처리시설 방류수 TOC 처리를 위한 운영관리방안 고찰
4. 결 론
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