목차

제1장 서론......................................................................................................................1
1.1 연구 배경 및 필요성.............................................................................................1
1.2 연구의 목표 및 범위.............................................................................................2
제2장 이론적 배경.......................................................................................3
2.1 질산염 제거 기술....................................................................................................3
2.2 전기화학적 처리......................................................................................................7
2.2.1 전기분해의 일반적인 이론............................................................................7
2.2.2 전기화학적 처리의 주요 인자......................................................................9
2.2.3 전극반응...........................................................................................................13
2.2.4 전극반응속도...................................................................................................15
2.2.5 반응시간...........................................................................................................16
2.2.6 전기화학의 전기적 단위..............................................................................17
2.2.7 산화와 환원.....................................................................................................19
2.3 질산염 제거............................................................................................................21
2.3.1 질산염 제거의 전기화학적 산화 환원 반응(음극, 양극)....................21
2.3.2 염소이온의 산화로 인한 차아염소산의 발생.........................................23
2.3.3 파과점 염소반응............................................................................................25
제3장 실험 재료 및 방법.........................................................................26
3.1 실험재료 및 장치....................................................................................................26
3.1.1 실험재료...........................................................................................................26
3.1.2 실험장치...........................................................................................................27
3.1.3 대상시료...........................................................................................................30
3.2 실험 방법................................................................................................................31
3.2.1 Undivided Cell 에서의 전기화학적 처리................................................31
3.2.2 Divided Cell 에서의 전기화학적 처리.....................................................31
3.3 분석 방법................................................................................................................33
3.3.1 질산염의 측정.................................................................................................33
3.3.2 아질산염의 측정............................................................................................33
3.3.3 암모니아성 질소의 측정..............................................................................33
3.3.4 유리잔류염소의 측정....................................................................................34
3.3.5 온도 측정.........................................................................................................35
3.3.6 pH의 측정........................................................................................................35
제4장 실험 결과 및 고찰.........................................................................36
4.1 Undivided Cell 에서의 질산염 제거 특성.....................................................36
4.2 Divided Cell 에서의 전류밀도에 따른 전기화학적 질산염 제거 특성..............................................................................................................................39
4.3 전해질 농도에 따른 전기화학적 질산염 제거 특성...................................48
4.4 전기분해 공정에서의 차아염소산의 생성......................................................58
4.5 Undivided Cell 과 Divided Cell 에서의 환원율 비교................................61
제5장 결론....................................................................................................63
참고문헌............................................................................................................................... 65
ABSTRACT ................................................................................................................... 69