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응집제를 활용한 침지형 MBR공정에서의 영양염류 제거 및 플럭스 향상 연구

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Author(s)
김경량
Issued Date
2009
Abstract
The MBR (membrane bioreactor) process is a conventional wastewater treatment process which has a lot of advantages such as high quality water assurance and stable wastewater treatment.
In this research, a new MBR process composed of hollow fiber type membrane in the submerged form was developed and the efficiency of this MBR process were evaluated and discussed.
In the MBR process, membrane contamination is one of the major problem which lead to reduce the MBR process and permeation flux efficiency by the increase of high TMP (transmembrane pressure). The conventional membrane process with the MBR-coagulation process and agglomeration compounds were developed in order to reduce the TMP increase and to increase the nutrient removal efficiency.
For this study, the two coagulants such as Al2(SO4)3 and FeCl3 were selected and their optimal coagulant doses were determined. These two coagulants showed the excellent effects in controlling the TMP. Because suspended solid, floating matters and organic compound existing in the sludge forms a floc. Apart from this, precipitability and dehydration was better.
Especially, in the conventional MBR-coagulation process the FeCl3 coagulant was the main factor for the removal of nitrogen and phosphorus and their removal efficiency was higher than the ordinary MBR process. Whereas in the case of Al2(SO4)3 removal efficiency of phosphorus was high while the nitrogen removal efficiency was relatively reduced. These results revelaed that Al2(SO4)3 has an effect on the nitrosomonas and nitrobacter which exist in the wastewater.
Alternative Title
A Study on Nutrients Removal and Flux Enhancement in Submerged MBR Process using Coagulants
Alternative Author(s)
Kyung-Ryang Kim
Affiliation
화학공학과
Department
일반대학원 화학공학과
Advisor
김선일
Awarded Date
2010-02
Table Of Contents
I. 서 론 1

II. 이론 3
II-1. 활성슬러지 3
II-2. 막결합형 생물반응조(MBR) 4
II-2-1. MBR 공정의 원리 4
II-2-2. MBR 공정의 특성 4
II-2-3. MBR 공정의 종류 5
II-2-4. MBR 공정에서 막 오염 제어 7
II-3. 질소와 인의 제거 9
II-3-1. 질산화 9
II-3-2. 탈질(산)화 10
II-3-3. 생물학적 질소 제거(BNR) 10
II-3-4. 생물학적 인 제거(BPR) 12
II-3-5. 생물학적 질소 · 인 동시 제거 12
II-4. 응집 14

III. 재료 및 방법 16
III-1. 실험 재료 16
III-1-1. 슬러지 배양 16
III-1-2. 합성폐수 16
III-1-3. 분리막 및 모듈 17
III-1-4. 실험 장치 18
III-1-5. 응집제 18
III-2. 실험 방법 20
III-3. 분석 22
III-3-1. MLSS 22
III-3-2. ORP 측정 22
III-3-3. DO 측정 22
III-3-4. 기타 분석 22

IV. 결과 및 고찰 24
IV-1. 막 여과 특성 24
IV-2. 영양염류 제거 효율 26
IV-2-1. MBR 공정의 영양염류 제거 효율 26
IV-2-2. MBR-coagulation 공정의 영양염류 제거 효율
28
IV-3. MBR과 MBR-coagulation 공정의 처리 효율 비교
36
IV-4. 막표면 케이크 층의 형태 38
V. 결론 40

참고문헌 42
Degree
Master
Publisher
조선대학교
Citation
김경량. (2009). 응집제를 활용한 침지형 MBR공정에서의 영양염류 제거 및 플럭스 향상 연구.
Type
Dissertation
URI
https://oak.chosun.ac.kr/handle/2020.oak/8567
http://chosun.dcollection.net/common/orgView/200000239486
Appears in Collections:
General Graduate School > 3. Theses(Master)
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