소화조 오니의 성상에 따른 소화율 조사 / 수질분석과...1 1.서론...7 2.혐기성 소화이론...8 2-1 개요...8 2-2 원리...8 2-3 혐기성 분해에 미치는 제요인...13 2-4 혐기성 소화의 특징...17 2-5 혐기성 소화에 관여하는 혐기성균...20 2-6 소화조의 분류...22 2-7 혐기성 소화조의 기능...27 3.혐기성 소화시험장치 및 시험항목...30 3-1 혐기성 소화시험장치...30 3-2 시험항목...32 4.시험방법 및 결과...37 4-1 온도에 따른 소화추이 실험...37 4-2 온도에 따른 시험소화조와 현장소화조 비교실험...51 5.결론...61 6.참고문헌...63 7.부록...64 송풍기의 경제적 운전에 관한 조사연구 / 수처리과...83 1.서론...89 2.송풍기에 대한 이론 및 운영사례 연구...90 2-1 송풍에 대한 이론...90 2-1-1 송풍기의 분류...90 2-1-2 송풍기의 적용범위...90 2-2 기존처리장에서의 송풍기 선정...91 2-2-1 시설현황...91 2-2-2 다단터보브로아의 설치사유...92 2-3 송풍기의 풍량제어방법...93 2-3-1 토출밸브 조정...93 2-3-2 흡입밸브 조정...94 2-3-3 흡입베인 조정...95 2-3-4 회전속도 제어...95 2-3-5 날개의 부착각도 변화...98 2-3-6 대수제어...98 2-3-7 풍량제어방식의 선정...99 2-4 효율적 송풍량 조정방법...102 3.유입수 인자에 따른 송풍량 조정방법 연구...104 3-1 조사배경...104 3-2 활성오니법의 이론...105 3-2-1 활성오니법...105 3-2-2 수온에 다른 송풍량 조절...106 3-3 폭기조 운영현황 및 분석...109 3-3-1 '92,'93,'94년 월별 수온 및 송풍량 운영현황...109 3-3-2 수온과 송풍량의 상관관계 분석고찰...109 3-4 유입수농도에 따른 송풍량 조절...111 3-4-1 관련이론...111 3-4-2 이론적 공기량과 실제공기량과의 비교검토...115 3-5 유입수 저농도에서 폭기조 운전에 관한 사례...119 3-5-1 개요...119 3-5-2 저농도 유입수로 인해 발생되는 문제점 및 원인...119 3-5-3 갈색스컴 발생 억제 사례...120 4.결론...123 탈수오니케익 함수율 저감방안 조사연구 / 오니처리과...127 1.서론...135 2.이론적 배경...137 2-1 슬러지 Cake의 발생과정 및 처분...137 2-2 슬러지 Cake중 함수율...139 2-3 슬러지 및 Cake의 수분결합 상태...140 3.조사분석 및 고찰...143 3-1 탈수 슬러지 Cake 성상 변화...143 3-1-1 Cake의 발생량 변화...144 3-1-2 Cake발생량 및 소화조 투입 TS,VS의 비교...146 3-1-3 Cake 함수율의 변화...148 3-2 소화 인출 슬러지의 영향 분석...149 3-2-1 소화조 슬러지 투입량에 대한 Cake 발생량...149 3-2-2 소화인출 슬러지 VS,DS와 함수율 비교...151 3-3 소화조 상태에 따른 영향 조사...152 3-3-1 소화상태에 따른 함수율 변화...154 3-3-2 소화일수,소화율,소화온도에 따른 함수율 비교...156 3-3-3 알카리도 변화에 대한 함수율...158 3-3-4 소화슬러지 인출 TS와 함수율...159 3-4 탈수기 유지관리에 따른 변화...160 3-4-1 TS,VS %에 대한 약품 주입율...163 3-4-2 PH,알카리도와 약품 주입율 비교...165 3-4-3 알키리도, VS, Cake함수율과 약품주입율 비교...166 3-5 작종 실험에 의한 응집탈수 현황...167 3-5-1 Jar Test(응집교반시험)의 연구결과...167 3-5-2 탈수기의 시험 운영과 상시 운영의 비교 현황...169 3-5-3 여과포 이동 속도에 대한 Cake 상태 변화...170 3-5-4 Cake 중금속 시험 결과...172 3-5-5 탈수기 여과포 교체 및 세척후 함수율 변화...174 4.함수율과 소화율과 의 경제성 비교에 대한 고찰...176 4-1 소화율에 따른 소화온도와 가스발생량 변화...177 4-2 소화슬러지 TS와 Cake함수율,발생량 관계...179 4-3 하수처리의 효율적 운영을 위한 경제성검토...180 5.결론...184