[논문]정수장 운영에 영향을 미치는 기후변화 요인 분석

장유정; 최현우; 이서준; 최재영; 최현수; 오희경

doi:10.15681/kswe.2024.40.2.89

정수장 운영에 영향을 미치는 기후변화 요인 분석
Effect of Climate Change Characteristics on Operation of Water Purification Plant

한국물환경학회지 = Journal of Korean Society on Water Environment, v.40 no.2, 2024년, pp.89 - 100

장유정 (서울시립대학교 환경공학과) , 최현우 (서울시립대학교 환경공학과) , 이서준 (서울시립대학교 환경공학과) , 최재영 (서울시립대학교 환경공학과) , 최현수 (서울시립대학교 환경공학과) , 오희경 (서울시립대학교 환경공학과)

Abstract ▼ AI-Helper

Climate change has a broad impact on the entire water environment, and this impact is growing. Climate adaptation in water supply systems often involves quantity and quality control, but there has been a lack of research examining the impacts of climatic factors on water supply productivity and operation conditions. Therefore, the present study focused on, first, building a database of climatic factors and water purification operating conditions, and then identifying the correlations between factors to reveal their impacts. News big data was analyzed with keywords of climatic factors and water supply systems in either nationwide or region-wide analyses. Metropolitan area exhibited more issues with cold waves whereas there were more issues with drought in the Southern Chungcheong area. A survey was conducted to seek experts' opinions on the climatic impacts leading to these effects. Pre-chlorination due to drought, high-turbidity of intake water due to rainfall, an increase of toxins in intake water due to heat waves, and low water temperature due to cold waves were expected. Pearson correlation analysis was conducted based on meteorological data and the operating data of a water purification plant. Heavy rain resulted in 13 days of high turbidity, and the subsequent low turbidity conditions required 3 days of high coagulant dosage. This insight is expected to help inform the design of operation manuals for waterworks in response to climate change.

주제어

표/그림 (18)

표 Table 1. List of factors for water supply infrastructure operation management
표 Table 2. Survey analysis contents and score composition for each item
그림 Fig. 1. Issues of climate change related to waterworks.
표 Table 3. Factors for correlation analysis
그림 Fig. 2. Ratio of climate issues affecting water supply infrastructure (Nationwide).
그림 Fig. 3. Ratio of climate issues affecting water supply infrastructure (Metropolitan areas).
그림 Fig. 4. Ratio of climate issues affecting water supply infrastructure (Southern Chungcheong area).
그림 Fig. 5. Survey analysis of climatic impact on water supply infrastructure.
표 Table 4. Impact scores of climatic factors on water quality
그림 Fig. 6. Data map of correlations between intake water qualities and climatic factors.
표 Table 5. Impact scores of climatic factors on production system
그림 Fig. 7. Data map of correlations between water purification and climatic factors.
표 Table 6. Impact scores of climatic factors on supply system
그림 Fig. 8. Correlations between climatic factors, intake water quality, and operation parameters of WPP.
표 Table 7. Strong correlations between climatic factors, intake water quality, and operation parameters of WPP.
그림 Fig. 9. Water temperature and operation time of sludge collector: (A) High turbidity (B) Heat wave.
그림 Fig. 10. Correlation between cumulative precipitation and coagulant dosage: (A) 1-day cumulative precipitation (B) 4-day cumulative precipitation (C) 12-day cumulative precipitation (D) 13-day cumulative precipitation.
그림 Fig. 11. Precipitation and turbidity of water intake point and coagulant dosage: (A) 2011~2016 (B) 2017~2022.

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