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무산소/호기(A/O)형 MBR-RO공정에 의한 폐수처리에 관한 연구

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Author(s)
전홍화
Issued Date
2006
Abstract
A membrane bioreactor (MBR) is an effective tool for wastewater recycling and treatment. MBR process has several advantages over conventional activated sludge process (ASP); reliability, compactness, and quality of water. The resulting high-quality and disinfected effluent suggests that MBR process can suitable for the reuse and recycling of wastewater.
An anoxic/oxic (A/O) MBR was applied to simultaneous removal of carbon and nitrogen components in sewage. In this study, at first, the efficiency of submerged MBR was investigated using hollow fiber microfiltration membrane with a constant flux of 10.2 L/m2·h at different solids retention time (SRT). Results show that protein/carbohydrate ratio increased and total extracellular polymeric substances (EPS) remained constant with SRT. Inorganic nitrogen removal efficiency increased with SRT due to a higher biomass concentration while phosphate was hardly removed. The removal efficiency of chemical oxygen demand (COD) was considerably high (over 80%) throughout the experiment.
Secondly, a lab-scale A/O MBR with reverse osmosis (RO) membrane was applied to treat the municipal wastewater. The A/O MBR-RO process is better than the conventional ASP in terms of consistent product quality including COD, inorganic nitrogen and total nitrogen. For the treatment of organic materials in municipal wastewater, the A/O MBR-RO process superior to the ASP. However, both processes showed little efficiency of phosphate removal because dissolved oxygen (DO) concentration in A/O MBR process was too high.
Alternative Title
A Study on Wastewater Treatment by Anoxic/Oxic Type MBR-RO Process
Alternative Author(s)
Quan, Hong-Hua
Affiliation
조선대학교 대학원
Department
일반대학원 화학공학과
Advisor
金瑄日
Awarded Date
2006-08
Table Of Contents
II. 서론 = 1
II. 문헌연구 = 3
II-1. 활성슬러지 공정(ASP) = 3
II-2. 막 결합형 활성슬러지 공정(MBR) = 4
II-2-1. 막 결합형 활성슬러지 공정의 원리 = 4
II-2-2. 막 결합형 활성슬러지 공정의 특성 = 4
II-2-3. 막 결합형 활성슬러지 공정의 종류 = 7
II-2-4. 막 결합형 활성슬러지 공정에서 막 오염 제어 = 9
II-3. 역삼투막 공정 = 12
II-3-1. 역삼투막 공정의 원리 = 12
II-3-2. 역삼투막 모듈의 특징 비교 = 12
II-4. 생물학적 질소·인 제거 공정 = 14
II-4-1. 생물학적 질산화 공정 = 14
II-4-2. 생물학적 탈질소화 공정 = 15
II-4-3. 생물학적 인 제거 공정 = 15
III. 재료 및 방법 = 17
III-1. 슬러지 배양 = 17
III-2. 합성폐수 = 17
III-3. 분리막 및 모듈 = 19
III-4. 실험방법 = 22
III-4-1. 침지형 막분리 공정에서 SRT 변화에 따른 운전조건 = 22
III-4-2. ASP와 A/O MBR의 운전조건 = 22
III-4-3. ASP-MF-RO와 A/O MBR-RO 공정 = 22
III-5. 분석방법 = 26
IV. 결과 및 고찰 = 32
IV-1. 침지형 막분리 공정에서 SRT 변화에 따른 막 여과 특성 = 32
IV-1-1. SRT 변화에 따른 막 오염 = 32
IV-1-2. SRT 변화에 따른 EPS 영향 = 33
IV-1-3. SRT 변화에 따른 유기물 제거효율 = 37
IV-1-4. SRT 변화에 따른 암모니아성 질소 제거효율 = 38
IV-1-5. SRT 변화에 따른 인산염인의 제거효율 = 40
IV-2. ASP와 A/O MBR의 처리효율 = 43
IV-2-1. 유기물 제거효율 = 43
IV-2-2. 암모니아성 질소 제거효율 = 45
IV-2-3. 총질소 제거효율 = 47
IV-2-3. 인 제거효율 = 47
IV-3. ASP-MF-RO 공정과 A/O MBR-RO 공정의 처리효율 = 50
V. 결론 = 52
참고문헌 = 54
Degree
Master
Publisher
조선대학교 대학원
Citation
전홍화. (2006). 무산소/호기(A/O)형 MBR-RO공정에 의한 폐수처리에 관한 연구.
Type
Dissertation
URI
https://oak.chosun.ac.kr/handle/2020.oak/6365
http://chosun.dcollection.net/common/orgView/200000232905
Appears in Collections:
General Graduate School > 3. Theses(Master)
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