본 연구에서는 안전한 수질의 밭 관개용수를 확보하기 위한 다기능 저류조 용수공급시스템을 현장에 적용하여, 효과를 검증하여 현장 적용성을 분석하였다. 용수의 수질 특성을 고려하여 적정 모듈 프로세스로 AOP (Advanced Oxidation Process), SF (Soil Filter)를 적용하였으며, 저류조의 효과 검증은 앞서 다기능 저류조 수처리 저감효율, 미생물 위해성 평가 등을 통해 수행하였다. 시범시설의 조사는 유입수(지표수, 지하수) 2개, 유출수 1개 지점을 2022년 5월부터 9월까지 월 1회(총 5회), 수온, TOC, COD 등 13개 수질항목을 측정하였다. 유출수에서 전항목 수질기준을 만족하였다. 다기능 저류조의 저감효율은 지표수에서 TOC 평균 19.2%, SS 평균 43.8%, T-N 평균 28.1%, T-P 평균 46.9%, Chl-a 평균 70.1%, 지하수에서 수온 평균 7.5% 상승, EC 평균 54.3%의 저감효율을 보여, 다기능 저류조의 수질정화 개선효과를 검증하였다. 미생물 위해성 평가 결과, 평균 위해도 값은 유입수(지하수) –3.02 × 10-6, 유입수(지표수) 2.79 × 10-5로 나타났으며, 다기능 저류저 처리 후 E.coli가 전량 사멸함에 따라 영농작업자의 위해성은 없을 것으로 나타났다.

This study applied a multi-functional reservoir water supply system in a field setting to secure safe irrigation water quality, evaluating its effectiveness to assess on-site applicability. Considering the water quality characteristics, a modular process incorporating advanced oxidation process (AOP) and soil filtration (SF) was implemented. The reservoir's performance was assessed through multiple evaluations, including the reduction efficiency of its water treatment and microbial risk assessment. The pilot investigation monitored two inflow water points (surface water and groundwater) and one outflow water point monthly from May to September 2022, yielding five sets of measurements. Thirteen water quality parameters, including water temperature, Total Organic Carbon (TOC), and Chemical Oxygen Demand (COD), were measured. All measured parameters for the outflow water met water quality standards. The reduction efficiency of the multi-functional reservoir demonstrated significant water quality improvements. For surface water inflow, average reduction efficiencies were 19.2% for TOC, 43.8% for Suspended Solids (SS), 28.1% for Total Nitrogen (T-N), 46.9% for Total Phosphorus (T-P), and 70.1% for Chlorophyll-a (Chl-a). Groundwater inflow results showed a 7.5% increase in temperature and an average reduction efficiency of 54.3% for Electrical Conductivity (EC), confirming the reservoir's effectiveness in water purification. The microbial risk assessment indicated average risk values of -3.02 × 10-6 for groundwater inflow water and 2.79 × 10-5 for surface water inflow.

초록
Abstract
서론
재료 및 방법
    1. 대상유역
    2. 저류조 및 수질개선시설 구축
    3. 수질측정
    4. 수처리 저감효율 산정 및 적용성 평가
결과 및 고찰
    1. 수질측정 결과
    2. 수처리 효율 검증
    3. 미생물 위해성 평가 결과
감사의 글
References

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• 이진형(국립공주대학교 지역건설공학과 박사) | Jin Hyung Lee (Ph.D., Department of Regional Construction Engineering, Kongju National University, Yesan 32439, Korea)
• 이한필(㈜이티워터 대표이사, 건국대학교 환경보건학과 겸임교수) | Han Pil Rhee (CEO, ETWATERS Co., Ltd, Seoul 05021, Korea, Adjunct Professor, Department of Environmental Health Science, Konkuk University, Seoul 05029, Korea)
• 손장원(㈜이티워터 상무이사) | Jang Won Son (Executive Director, ETWATERS Co., Ltd, Seoul 05021, Korea)
• 김황희(㈜콘텍이엔지 연구소장) | Hwang Hee Kim (Head of Research Group, Contecheng Co., Ltd, Yongin 16942, Korea)
• 임희성(한국농어촌공사 농어촌연구원 선임연구원) | Hee Sung Lim (Researcher, Rural Research Institute, Korea Rural Community Corporation, Ansan 15634, Korea)
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• 송인홍(서울대학교 생태조경, 지역시스템공학부, 글로벌 스마트팜 융합전공, 농업생면과학연구원 부교수) | In Hong Song (Associate Professor, Department of Rural Systems Engineering, Global Smart Farm Convergence Major, Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea)
• 박찬기(국립공주대학교 지역건설공학과 교수) | Chan Gi Park (Professor., Department of Regional Construction Engineering, Kongju National University, Yesan 32439, Korea) Corresponding author