호기성 입상화 슬러지를 이용한 SBR 운전의 동력학적 해석 및 설계분석 = Bio-kinetic and Design Analysis of a Sequencing Batch Reactor by Aerobic Granular Sludge

국문 초록 (Abstract)

고분자 응집제를 이용하여 짧은 시간에 형성된 입상형태의 슬러지를 연속회분식 장치에 주입하여 미생물의 호기성 입상화의 특성을 향상시키고, 제조한 입상화 슬러지를 하수에 적용하여 유기물제거에 대한 운전인자를 도출하였다. 유입하수 COD 63~72 mg/L에 대한 유기물 제거속도 계수 k는 10.161 d-1로 일반적 활성슬러지 공법의 k값 5~8 d-1보다 효과적으로 나타났으며, 산소이용에 대한 a`, b` 값은 각각 0.87 mg O₂/mg CODr, 0.11 mg O₂/mg MLVSS·d이었다. 슬러지 합성계수와 자산화계수는 각각 0.45 mg VSS/mg CODr과 0.05 mg VSS/mg MLVSS·d로 일반적 활성슬러지 공법에 비해, 자산화 계수는 비교적 적은 값으로 나타나므로 미생물의 사멸율은 낮은 것을 알 수 있었다.

다국어 초록 (Multilingual Abstract)

In the present work, the aerobic particle`s characteristics were enhanced. A polymer was used to make aerobic granular sludge in short period of time. And operation parameters were calculated for organic matter removal in domestic wastewater using a sequencing batch reactor (SBR). The experiment for sewage (Influent concentration of 63~72 mg COD/L) by using mature aerobic granular sludge showed the organic matter removal rate k and oxygen utilization coefficient a`, b` were 10.161 d-1 and 0.87 mg O₂/mg CODr, 0.11 mg O₂/mg MLVSS·d respectively. Therefore, it was more effective than K value 5~8 d-1 of conventional activated sludge process. The sludge synthetic value and sludge auto-oxydation value were 0.45 mg VSS/mg CODr and 0.05 mg VSS/mg MLVSS·d respectively. Consequently, mortality rates of microorganisms was lower than conventional activated sludge process.

참고문헌 (Reference)

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