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曝氣에 의해 廢水가 內部 循環되는 沈漬形 膜生物反應器의 廢水處理 特性

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Author(s)
장동룡
Issued Date
2009
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000004752
Abstract
The objectives of this research were to develop submerged membrane bioreactor(SMBR) being capable of internal circulation by aeration. The wastewater treatment characteristics of SMBR designed in this study were investigated. In this experiments, a couple of flat-sheet microfiltration membranes made of PVC with a pore size of 0.4 ㎛ were used. It was confirmed that wastewater in anaerobic region was circulated to aerobic region by aeration. Mixed liquor suspended solid(MLSS) concentrations in the aerobic region of MSBR were decreased with operation time. To prevent the decrease of MLSS concentrations in the aerobic region, various kinds of method were tried. In this experiments, MLSS concentrations in the aerobic region were in the range of 3,030∼506 mg/L during 43 days of run. As MLSS concentrations in the aerobic region were decreased, the removal efficiencies of total nitrogen and total phosphorous were decreased. But the removal efficiencies of COD were not effected by MLSS concentrations. The average removal efficiencies of COD, total nitrogen, and total phosphorous were 99.53%, 58.46%, and 42.39%, respectively.
Alternative Title
Characteristics of a Wastewater Treatment in Submerged Membrane Bioreactor with Internal Circulation by Aeration
Affiliation
제주대학교 산업대학원
Department
산업대학원 건설환경공학과
Advisor
이호원
Awarded Date
2009. 8
Table Of Contents
Ⅰ. 서론 1

Ⅱ. 이론적 배경
2.1 고도처리의 일반적 공법 3
2.2 생물학적 고도처리 방법 5
2.2.1 생물학적 질소(T-N)의 제거 5
2.2.2 생물학적 인(T-P)의 제거 6
2.3 막 생물반응기 7

Ⅲ. 실험 장치 및 방법
3.1 실험장치 10
3.2 실험방법 19
3.3 수질분석방법 21

Ⅳ. 실험 결과 및 고찰
4.1 반응기 내에서의 폐수 순환 관찰 22
4.2 활성 슬러지의 MLSS 변화 24
4.3 유기물의 제거 26
4.4 총질소(T-N)의 제거 29
4.5 총인(T-P)의 제거 32

Ⅴ. 결론 35

참고문헌 37
Degree
Master
Publisher
제주대학교 산업대학원
Citation
장동룡. (2009). 曝氣에 의해 廢水가 內部 循環되는 沈漬形 膜生物反應器의 廢水處理 特性
Type
Dissertation
Appears in Collections:
Graduate School of Industry > Environmental Engineering
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