Journal of Korea Water Resources Association (한국수자원학회논문집)

Korea Water Resources Association (한국수자원학회)
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Analysis on the Correlation between Hydrological Data and Raw Water Turbidity of Han River Basin

한강수계의 수문자료와 원수탁도의 상관관계 분석

  • Jeong, Anchul (Dept. of Civil Engrg., Chungnam National Univ.) ;
  • Kang, Taeun (Division of Field Engrg. for the Environment., Hokkaido Univ.) ;
  • Kim, Seongwon (Dept. of Civil Engrg., Chungnam National Univ.) ;
  • Jung, Kwansue (Dept. of Civil Engrg., Chungnam National Univ.)
  • 정안철 (충남대학교 공과대학 토목공학과) ;
  • 강태운 (홋카이도대학교 공과대학 환경필드공학과) ;
  • 김성원 (충남대학교 공과대학 토목공학과) ;
  • 정관수 (충남대학교 공과대학 토목공학과)
  • Received : 2015.09.04
  • Accepted : 2015.11.02
  • Published : 2016.01.31
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Abstract

A correlation analysis between raw water turbidity at two wide-area water treatment plants and hydrological data was conducted for efficient water supply, design and management of water treatment plant. Both correlation analysis and principal component analysis were conducted using hydrological time series data such as inflow discharge, outflow discharge, and rainfall at dam basin of intake station of wide-area water treatment plants. And, forecasting of change in turbidity was conducted using regression equation for turbidity prediction. The raw water turbidity of two water treatment plants was strongly related to time series of discharge. The raw water turbidity of Chungju water treatment plant is strongly related to outflow discharge at Chungju dam (0.708). Whereas, the raw water turbidity of Wabu water treatment plant is strongly related to inflow discharge at Paldang dam (0.805). Similar trends between turbidity forecasting result using regression equation and calculation result using estimation equation on Korea water supply facilities standard were obtained. The result of this study can provide basic data for construction and management of water treatment plant.

원활한 용수공급과 정수장의 효율적이고 경제적인 설계 유지 관리를 위해서 한강수계에 위치하고 있는 두 광역정수장의 원수탁도와 수문자료간의 상관관계를 분석하였다. 광역정수장의 취수원인 댐의 유입유량, 방류량, 강우를 수문자료로서 활용하였으며, 상관관계 분석을 위해서는 상관분석과 주성분분석 기법을 이용하였다. 또한, 탁도변화를 예측할 수 있는 회귀식을 제안하여 탁도 변화 예측을 수행하였다. 충주정수장의 원수탁도는 충주댐의 방류량(0.708)과 와부정수장의 원수탁도는 팔당댐의 유입량(0.805)과 높은 상관성이 높은 것으로 확인되었다. 상관성이 높은 시계열자료를 이용하여 제안한 회귀식의 탁도 예측치는 상수도시설기준에서 제시하고 있는 원수탁도 산정방법을 이용한 경우와 유사한 결과를 도출하였다. 본 연구의 결과는 장래의 원수탁도를 예측하여 추가적인 정수장 건설 및 기존 정수장의 효율적인 유지 관리를 위한 기초 자료를 제공할 수 있을 것으로 판단된다.

Keywords

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