초록 ▼

1세부) 분산형 정수처리시설 설계기술 개발 및 Prototype 제작
▪1,000 m3/일 규모 수직형 정수처리 실증시설 설계 및 20,000㎥/일 실규모 수직형 정수처리 시설 설계(직결형(tankless) 및 압력식 컴팩트 공정 최적화로 소요부지 저감)
▪사업화 대상 모델지역 분산형 용수공급시스템기본계획 수립 및 편익분석
▪수직형 정수처리 시설 프로토타입 제작 및 비상용수 확보량 산정
2세부) 분산형 용수공급시스템 실증시설 구축
▪감성설계가 고려된 미적시공기술 개발 및 수직형 정수처리 실증시설 구축

1세부) 분산형 정수처리시설 설계기술 개발 및 Prototype 제작
▪1,000 m3/일 규모 수직형 정수처리 실증시설 설계 및 20,000㎥/일 실규모 수직형 정수처리 시설 설계(직결형(tankless) 및 압력식 컴팩트 공정 최적화로 소요부지 저감)
▪사업화 대상 모델지역 분산형 용수공급시스템기본계획 수립 및 편익분석
▪수직형 정수처리 시설 프로토타입 제작 및 비상용수 확보량 산정
2세부) 분산형 용수공급시스템 실증시설 구축
▪감성설계가 고려된 미적시공기술 개발 및 수직형 정수처리 실증시설 구축
▪기존 광역 및 배/급수시스템 최적 연계 및 분산형 용수공급시스템 구축 기본 계획
3세부) 분산형 용수공급시스템 운영유지관리기술 개발
▪용수 및 에너지 통합 운영관리시스템 구축
▪수직형 정수처리 시설 운영유지관리 Guidance Manual
▪신재생에너지 및 에너지 효율화 기술 설계 및 검증(소비 에너지 효율화율 30% 달성)

Abstract ▼

A general centralized water supply system supplies water to consumers after treating it in a large water treatment plant through a large pipe network. This system is designed to ensure stable water quality and to avoid secondary pollution due to long water supply pipes and pipe aging that need ever-

A general centralized water supply system supplies water to consumers after treating it in a large water treatment plant through a large pipe network. This system is designed to ensure stable water quality and to avoid secondary pollution due to long water supply pipes and pipe aging that need ever-increasing maintenance costs for pipe improvement and water supply equipment. Although high quality water is treated by advanced water treatment plant, poor management of the transmission process, indoor service pipes and storage tanks result in people’s disbelief in the supplied water. Because people use their own water purifiers and buy bottled water, direct drinking of tap water is not higher than 4% and thus it is critical to develop a scheme for improving the water supply system.
Therefore, we need to first study a new concept water supply system compatible with the paradigms of future cities, and solve the current issues of inefficiency. It is necessary to take the treatment plant of a Decentralized Water Supply System (DWSS) to places close to consumers, to address issues of changing water quality and demands for each area, and to effectively cope with emergencies through a network. DWSS is expected to be an alternative for realizing a sustainable water supply system.
For a DWSS, water treatment facilities are installed around end consumers in a city to be supplied with primarily treated water in the water treatment plant or raw water, in order to treat it compatible with consumers’ needs. This system reduces the time to transmit the treated water to end consumers, and enables the reduction of possible secondary pollution in pipes and disinfection chemicals in order to stably supply safe water. Unit processes for water treatment are made of multi-layers, a tower-type in an urban area, and an underground tower in parks or facilities. This system implements proper use of ground and facilities ideal for functioning in and adaption to the conditions of the relevant city, It is also designed to be an eco-friendly and resident-friendly facility to be a landmark in the area.
The vertical-type water treatment system is compact for each area. It can supply water in combination with a direct supply and water reservoirs depending on the daily changes of water demand. In an emergency, the system uses feed water and substitutes water sources for supplying emergency water for maximum 14 days per person to function as a storage tank without an interruption of water supply. Processes customized to water quality enable this system to be used for drinking water and industrial water. A plant with a capacity of 1,000㎥/day was designed and constructed to assess and verify the applicability of this decentralized water treatment(DWT) system design technology which is being developed for the first time. Three dimensional drawings and a prototype model were produced for examining overall process configuration, internal machine layout and issues in construction in advance. Hydraulic examination was conducted through CFD analysis, for example, flow and pressure changes in various conditions for each process were applied to the design. Stability of the tankless system, which does not need a storage tank between unit processes, was applied to the tested facility and was verified through hydraulic model experiment. The DWSS technology, which takes emergency water is currently being applied to a master plan for Korea’s water supply system.
The vertical-type water treatment system employs renewable energy technology including solar photovoltaic system, small hydropower systems and raw-water source heat pumps to ensure at least 30% of consumed energy efficiency. The system also employs DC distribution, for improving energy change efficiency, LED lighting for minimizing lighting load, and highly efficient pumps and control equipment. This eco-friendly and low-carbon water treatment system is ideal for stably supplying safe and quality water to consumers.
The DWSS is a compact water treatment facility designed to greatly reduce required ground area. Processes thereof are laid out in a vertical-type structure, not typical planar gravity flow. A membrane filtration process is employed, and the pressure type structure is applied to the advanced water treatment by ozone and GAC to implement it in a compact plant or package structure. In this project we designed a system without intermediate storage tanks between respective unit processes. This is a method of transferring treated water to the end process by means of the initial pressure of a supply pump for supplying water in the membrane filtration process, and the unit process at later stages is also a pressure type. The tankless system and the pressure type structure in each unit process contribute to reducing the required ground area and space resulting in a compact size, and thus reducing facility and operation costs. The initial operation pressure range affects selection of membranes made in Korea and other countries, and other involved equipment.
For improved energy efficiency of the water treatment system, a PVIB (Photovoltaic in Building) and the BIPV (Building Integrated Photovoltaic System) were installed. The maximum power is 10 kW and 5 kW, respectively, and a solar power meter was equipped to analyze energy efficiency. It is possible to analyze daily/monthly/yearly data through the installed monitoring system.
The raw-water source heat pump system was installed in the heat pump, the heat exchanger, the expansion tank, the buffer tank and the FCU. Regarding energy efficiency, the power consumption is 28.234 kW, the system COP is 2.55, and the produced heat of 72 kW to contribute to improving energy efficiency. Integrated O&M system is constructed to enable monitoring and control for each process in detail. For reducing energy and thus for stable operation of the water treatment plant, a virtual server environment is constructed to reduce resources required for system construction to 10%. Mobile equipment history management enables equipment information to be monitored and a maintenance history to be managed by using the mobile QR code.
This new concept technology of a compact DWT process is applicable to constructing new water treatment facilities and retrofitting old facilities in Korea and other countries. It is thus expected that this technology will be a leading key design technology for future-city water supply systems. This vertical-type water treatment technology with its compact design is perfectly applicable to urban areas that have limited space.
This technology will contribute to implementing new reliable water supplies, expanding the existing water related market that is currently not in prosperity, and stably supplying safe and reliable drinking water.

목차 Contents

• 제출문 ... 1
• 보고서 요약서 ... 3
• 요 약 문 ... 5
• SUMMARY ... 22
• CONTENTS ... 25
• 목차 ... 27
• 표 차례 ... 29
• 그림 차례 ... 37
• 제 1 장 연구개발 개요 ... 52
• 제 1 절 연구개발 목적 및 필요성 ... 52
• 1. 연구개발의 목적 ... 52
• 2. 연구개발의 필요성 ... 58
• 제 2 절 연구개발 정의, 범위 및 특징 ... 62
• 1. 연구개발 정의 ... 62
• 2. 연구개발 범위 및 세부 목표 ... 63
• 3. 연구개발 특징 ... 71
• 제 3 절 국내외 기술개발 현황 ... 74
• 1. 국내 기술개발 현황 ... 74
• 2. 국외 기술개발 현황 ... 111
• 3. 기술개발 차별성 ... 165
• 제 2 장 연구개발 수행 내용 및 결과 ... 166
• 제 1 절 연구수행 전략 및 방법론 ... 166
• 제 2 절 연구 수행과정 및 내용 ... 172
• 1. 분산형 정수처리시설 설계기술 개발 및 Prototype 제작 (1세부) ... 172
• 2. 분산형 용수공급시스템 실증시설 구축 (2세부) ... 243
• 3. 분산형 용수공급시스템 운영유지관리 기술 (3세부) ... 292
• 제 3 절 연구 수행 결과 및 검증 ... 506
• 1. 분산형 정수처리시설 설계기술 개발 및 Prototype 제작 (1세부) ... 506
• 2. 분산형 용수공급시스템 실증시설 구축 (2세부) ... 752
• 3. 분산형 용수공급시스템 운영유지관리 기술 (3세부) ... 893
• 제 3 장 최종 연구성과 및 적용 실적 ... 1038
• 제 1 절 주요 연구성과 ... 1038
• 제 2 절 연구성과 적용(예정) 실적 ... 1050
• 제 4 장 연구목표 달성 및 효과 ... 1052
• 제 1 절 연구개발 최종목표 달성도 ... 1052
• 제 2 절 연구개발 성과의 기술적 효과 분석 ... 1061
• 제 3 절 연구개발 성과의 경제적 효과분석 ... 1064
• 제 4 절 연구개발 성과의 정책적 효과분석 ... 1067
• 제 5 장 연구성과 활용 및 추가연구 필요성 ... 1068
• 제 1 절 연구성과 향후 활용방안 ... 1068
• 제 2 절 추가연구 필요성 ... 1070
• 참고문헌 ... 1072
• 부 록 ... 1080
• 끝페이지 ... 1127