유입부하 변동에 따른 Bio-Sac 생물반응조의 최적 송풍량 결정에 관한 연구 = A Study on the Determination of the Optimum Ventilation Rate of Bio-Sac Bioreactor with Variation of Inflow Load

국문 초록 (Abstract)

설계인구보다 증가된 인구에 따라서 하수처리장에서는 설계수질과 유입수질간에는 많은 차이가 있으며, 설계 유입수 농도보다 초과로 유입이 된 하수처리장은 적정운전에 많은 곤란함을 겪고 있다. 그런데 Bio-Sac공법은 설계대비 초과된 유입 BOD,
SS, T-N에 의해 하수처리장에 대해서는 국⋅내외 선행 연구가 많이 부족하고, 미흡한 실정이다. 본 연구의 목적은 성남판교수질복원센터를 대상으로 설계초과되는 유입 BOD, SS, T-N 변동에 따른 생물반응조의 송풍량 조절을 통해 질산화, 탈질화 반응의 의한 최적의 송풍량을 선정하기 위한 연구이다. 생물반응조 호기조 송풍량 40, 50 및 60 Nm3/min으로 변경하여 실험한 결과50 Nm3/min일 때 질소제거율 92.8% 질산화율 96.9% 탈질화율 94.3%로 나타났다. 질소제거율과, 탈질율을 고려할 때 최적의 송풍량은 50 Nm3/min일 때 처리효율이 효과적이라는 결과를 얻었다.

다국어 초록 (Multilingual Abstract)

There are many differences between the design water quality and the influent water quality at the sewage treatment plant, depending on the population that is larger than the design population, and the sewage treatment plant which has flowed in excess of the design influent concentration suffers from the problem of proper operation. However, in the Bio-Sac construction method, there are insufficient prior researches on the sewage treatment plant due to excess BOD, SS, and T-N compared to the design. The purpose of this study is to select the optimal amount of ventilation by nitrification and denitrification through controlling the amount of blowing of bioreactor according to fluctuating influent BOD, SS, and T-N exceeding the design for Seongnam Pangyo water quality restoration center. Experiments were conducted at 40, 50 and 60 Nm3 / min ventilation rate of the bioreactor. The nitrogen
removal rate was 92.8%, the nitrification rate was 96.9%, and the denitrification rate was 94.3% at 50 Nm3 / min. Considering the nitrogen removal rate and denitrification rate, the optimum treatment efficiency was 50 Nm3 / min.

목차 (Table of Contents)

• 1. 서 론
• 2. 본 론
• 3. 결과 및 고찰

참고문헌 (Reference)

1 Metcalf-eddy Inc., "Wastewater engineering: treatment and reuse" McFrow-Hill 2004

2 Munch, E. V., "Simultaneous nitrification and denitrification in bench-scale sequencing batch reactors" 30 (30): 277-285, 1996

3 Pack, J. H., "Process Evaluation through comparative performanve Analysis of advanced biolofical treatment technologies for municipal wastewater" Konkuk University 2008

4 Kang, Y. M., "On the treatment of sewage and manure using waste tire carrier" Gangwon University 2002

5 Bock, E., "Growth of Nitrobacter in the absence of dissolved oxygen" 2 (2): 243-250, 1988

6 Roberts, J. A., "Application of he membrane biological reactor system for combined sanitary and industrial wastewater treatment" 37-42, 2000

7 Nielsen, P. H., "Adsorption of ammonium to activated sludge" 30 (30): 762-764, 1996