밭지대용수 확보를 위한 다기능 저류조 개발 및 성능평가 = Development and Performance Evaluation of Multifunctional Storage Tank for Securing the Upland Water to Cope

다국어 초록 (Multilingual Abstract)

This study is designed to assess the Development and Performance Evaluation of Multifunctional Storage Tank for Securing the Upland Water. Test-bed for the installation of a multi-purpose low-flow group was selected as a place located in Hacheon-ri, Shinyang-myeon, South Chungcheong Province, where apples are grown at a size of 0.16 hectares by converting from rice paddies to fields.For the purpose of assessing the design capacity, the surface water irrigation using the multi-function low current was carried out three times in total. There was no blockage of the air gap caused by suspended solids during water supply, and the water flow per hour was 0.0015m3/(m2×h), satisfying the design capacity. Metal filtration systems, which are water treatment facilities, can be manufactured according to water purification efficiency by cleaning various networks of STS316 micro mesh and can be used by adjusting the size of the sintered mesh according to the number of processing sources. Further, it was designed to allow retro-tax work to prevent clogging of the filter network by foreign substances and designed to be used semi-permanently. The water temperature maintenance facility installed a heater temperature controller inside the low-current tank for direct control of the water temperature of irrigation water, and designed for automatic temperature control by keeping a constant temperature. After supply of surface water, inflow and treatment water were collected. A visual inspection found that many suspended solids were removed. As a result of the water quality analysis, the standard value of agricultural water in the intake and treatment water was satisfied for pH, COD, T-N, and T-P. However, for SS, the inflow was not satisfied with the reference value of 15 mg/L at 26.4 mg/L, but after treatment, the reference value was met with 5.6 mg/L and was approximately 79%. The irrigation water of the water is stored in a low-current tank, the heater control is operated, and the temperature change is monitored. The initial temperature of the low-current tank irrigation water was 15°C, and it took about 1 hour to raise the water temperature of 1m3 of the irrigation water when applying a 5kW heater thermostat. Using a heater thermostat with a capacity of 25kW, the temperature could rise to 20°C in less than one hour.

목차 (Table of Contents)

• Ⅰ. 서 론 1
• 1.1 연구 배경 및 목적 1
• 1.2 연구내용 5
• Ⅱ. 밭지대 용수확보를 위한 저류조 적용현황 조사 6
• 2.1 지하수 이용 저류조 현황 6
• 2.1.1 충북 음성(갑산·중동지구) 6
• 2.1.2 제주 구좌(구좌권역) 7
• 2.1.3 전북 임실(농원지구) 8
• 2.1.4 충북 영동(오정지구) 9
• 2.1.5 충남 서산(가구지구) 10
• 2.1.6 강원 홍천(자운 3지구) 11
• 2.2 지표수 이용 저류조 현황 12
• 2.2.1 전남 고흥(가야지구) 12
• 2.2.2 전남 해남 13
• 2.2.3 전남 해남(신흥지구) 14
• 2.2.4 충북 단양(무수천지구) 15
• 2.2.5 경남 김해(한림지구) 16
• Ⅲ. 밭지대 용수확보를 위한 다기능 저류조
• 설계 18
• 3.1 관개용수량 및 저류조 용량 설계 18
• 3.1.1 관개용수량 산정 18
• 3.1.2 저류조 용량 산정 21
• 3.2 수질개선 기능 설계 23
• 3.2.1 국내 농업용수 수질 기준 23
• 3.2.2 수질개선 시 고려사항 24
• 3.2.3 수질개선 방안 결정 26
• 3.3 수온유지 방안 설계 30
• 3.4 다기능 저류조 제작 32
• 3.4.1 다기능 저류조 Type 선정 34
• 3.4.2 다기능 저류조 제작 34
• Ⅳ. 다기능 저류조 시험시공 및 성능 평가 38
• 4.1 Test-bed 선정 및 다기능 저류조 설치 38
• 4.1.1 Test-bed 선정 38
• 4.1.2 다기능 저류조 설치 40
• 4.1.3 다기능 조류조 시운전 및 용수공급 42
• 4.2 시험방법 및 결과 43
• 4.2.1 다기능 조류조 설계용량 43
• 4.2.2 수질개선 47
• 4.2.3 수온유지 성능 50
• Ⅵ. 결론 53
• 참고문헌 55
• ABSTRACT 57