용담호 주변 환경기초시설(공공하수도) 운영 현황 및 개선방안에 관한 연구

다국어 초록 (Multilingual Abstract)

As of the end of 2018, there are 4,111 public sewerage facilities installed in Korea, with a sewage penetration rate of 99.3%, but the sewage penetration rate in Muju-gun near Yongdam Lake remains at 75.8%, Jinan-gun 77.5%, and Jangsu-gun 82.9%. Since many unmeasured areas such as the areas where pollutants are scattered, nonpoint pollutants are scattered and public sewerage facilities are not installed, the water pollution is concerned. If the environmental basic facilities (public sewerage facilities) are improperly operated, there will be a a negative impact on the water quality of Yongdam Lake.
Therefore, I have investigated the operation status of public sewarage system in this study, to preserve the water quality of Yongdam Lake, especially the upper reaches of Yongdam Lake (Muju-gun, Jinan-gun, Jangsu-gun) to identify problems and devise measures for the improvement to preserve the water quality of Yongdam Lake, and improve the living conditions and water supply. And also, the purpose of this study is to contribute to the improvement of public health, such as the prevention of human-borne infectious diseases.
As the environmental value of water supply source for megapolis in Jeonbuk and Chungcheong province is very high, the public sewerage facilities should be newly built and the existing facilities also should be expanded so that the distribution rate of public sewerage system can be increased and the BTL projects of sewrage etc. preparing for the reduction plans of nonpont pollution and improvement plans of water quality incoming to the Lake Yongdam.
As a result of analysis on the 12 large - scaled public sewerage facilties which are operated by Muju, Jinan, Jangsu - guns, 80.2% which are applicable to 12 large - scaled public sewerage facilities, conducted from Jan 2016 to June 2020, for 54 months, I have investigated the characteristics of water incoming and outgoing, treatement efficiency per each item such as BOD, COD, T-N, T-P, SS etc, analysis on the won unit of KRW for the treatment of water sewearge and the compliance with the water quality of water that is outgoing to the Lake Yongdam and could conclude that the improvement plans for those items which I have investigated are necessary.
The result of this study is expected to be used for the improvement of public sewerage facilities' efficiency, reduction on sewerage water treatment and improvement plan of those facilities.

목차 (Table of Contents)

• 제 1 장. 서 론 1
• 1.1 연구배경 및 목적 1
• 1.1.1. 연구배경 1
• 1.1.2. 선행연구의 검토 2
• 1.1.3. 연구의 목적 및 방법 3
• 제 2 장. 이론적 배경 4
• 2.1 하수도법의 변천 4
• 2.2 공공하수도의 정의 5
• 2.3 전북지역 공공하수도시설 현황 5
• 제 3 장. 연구대상 및 연구방법 10
• 3.1 연구대상(무주진안장수군) 공공하수도시설 현황 10
• 3.1.1. 연구대상지역 하수도보급률 현황 10
• 3.1.2. 연구대상지역 공공하수도시설 현황 11
• 3.1.3. 연구대상 공공하수도시설 현황 14
• 3.2 연구대상 공공하수도 시설별 적용 공법 16
• 3.2.1 SBR계열공법 16
• 3.2.2 DeNipho공법 22
• 3.2.3 산화구공법 24
• 3.2.4 HBR-Ⅱ공법 25
• 3.3 연구방법 27
• 제 4 장. 연구결과 및 고찰 28
• 4.1 유입 및 방류 특성 28
• 4.1.1 SBR계열공법 28
• 4.1.2 DeNipho공법 47
• 4.1.3 산화구공법 49
• 4.1.4 HBR-Ⅱ공법 51
• 4.2 적용공법별 처리효율 53
• 4.2.1 SBR계열공법 54
• 4.2.2 DeNipho공법 58
• 4.2.3 산화구공법 59
• 4.2.4 HBR-Ⅱ공법 59
• 4.2.5 수질오염 항목별 평균제거율 60
• 4.3 지역별 하수처리비용 산출등급 63
• 4.3.1 운영비 분석 및 검토 65
• 4.3.2 하수처리비용 산출방법 67
• 4.3.3 연구대상 처리시설 하수처리 비용 69
• 4.4 공공하수도 시설별 방류수 수질기준 만족여부 76
• 4.4.1 방류수 수질기준 만족여부 77
• 4.4.2 지도점검 결과 80
• 4.5 수질분석 자료에 대한 검증 84
• 4.5.1 수질실험실 정도관리 적합여부 84
• 4.5.2 수분석 자료와 수질TMS 측정 값 상대정확도 85
• 제 5 장. 용담호 주변 환경기초시설(공공하수도시설) 운영실태의 문제점 및 개선방안 89
• 5.1 시설용량 증설의 필요성 89
• 5.2 수질측정지표 변경에 대한 대응 95
• 5.3 민간위탁 관리대행 기간 선정의 문제점 98
• 5.4 하수처리비용 절감의 필요성 102
• 제 6 장. 결론 105
• 참고문헌 108
• 부록 112