목차

Ⅰ. 서 론 ··························································································································1
1.1 연구 배경 ·············································································································1
1.2 연구 목적 및 범위·····························································································3
Ⅱ. 이론적 배경 ·············································································································4
2.1 혐기성 소화·········································································································4
2.1.1 혐기성 소화 원리························································································4
2.1.2 음식물 쓰레기의 혐기성 소화 ································································6
2.1.2 막 결합형 혐기성 소화 (AnMBR) ·························································7
2.2 막여과 공정·········································································································9
2.2.1 막여과의 정의 ······························································································9
2.2.2 막의 분류······································································································9
2.2.3 막의 여과 방식··························································································10
2.2.4 Flux ··············································································································11
2.2.5 막의 오염····································································································11
2.2.6 막 여과 저항 ······························································································13
Ⅲ. 실험재료 및 실험방법 ························································································14
3.1 실험재료 ···········································································································14
3.1.1 여과 대상 시료 ··························································································14
3.1.2 분리막 ··········································································································15
3.2 실험장치 구성 및 운전···················································································16
3.2.1 Stirred cell ································································································16
3.2.2 Cross-flow module ·················································································16
3.3 분석방법·············································································································18
3.3.1 대상 시료의 성상분석 ··············································································18
3.3.2 Flux decline and recovery rate ·····························································18
3.3.3 막 여과 저항 ····························································································19
3.3.4 파울링 유발 물질······················································································20
Ⅳ. 결과 및 고찰 ·········································································································21
4.1. 소화액의 수질특성 ··························································································21
4.1.1 유기물 및 고형물······················································································21
4.1.2 입도 분석····································································································22
4.2. 혐기성 소화 슬러지의 막 여과 특성··························································23
4.2.1 막 종류에 따른 여과 특성 비교 ··························································23
4.2.2 여과방식에 따른 Flux 비교 ············································································28
4.2.3 막 여과 저항 ······························································································31
4.3 평판형 모듈에서의 UF 막 여과 특성·························································33
4.3.1 Flux decline and recovery ······································································33
4.3.2 투과수의 성상 분석 ··················································································35
4.3.3 막 오염 물질 ····························································································37
4.3.4 막 세척 방안 ······························································································43
4.4 AnMBR 구성을 위한 막 여과 공정 설계 ··················································45
4.4.1 막 모듈 설계 ······························································································45
4.4.2 운전에 필요한 요소 ··················································································46
Ⅴ. 결론 ··························································································································49
참 고 문 헌 ···················································································································51
Abstract ························································································································59