Peak load rate(i.e., maximum daily flow/average daily flow) has not been considered for industrial water demand planning in Korea to date, while area unit method based on average daily flow has been applied to decide capacity of industrial water treatment plants(WTPs). Designers of industrial WTPs has assumed that peak load would not exist if operation rate of factories in industrial sites were close to 100%. However, peak load rates were calculated as 1.10~2.53 based on daily water flow from 2009 to 2014 for 9 industrial WTPs which have been operated more than 9 years(9-38 years). Furthermore, average operation rates of 9 industrial WTPs was less than 70% which means current area unit method has tendency to overestimate water demand. Therefore, it is not reasonable to consider peak load for the calculation of water demand under current area unit method application to prevent overestimation. However, for the precise future industrial water demand calculation more precise data gathering for average daily flow and consideration of peak load rate are recommended.

1. 서 론
 2. 한국과 일본의 공업용수 첨두부하 적용현황
  2.1 한국
  2.2 일본
 3. 광역상수도 공업용수 정수장의 첨두부하 분석
 4. 결 론
 References

• 김진근(제주대학교 환경공학과) | Jinkeun Kim (Dept. of Environmental Engineering, Jeju National University) Corresponding author
• 이희남(제주대학교 환경공학과) | Heenam Lee (Dept. of Environmental Engineering, Jeju National University)
• 김두일(단국대학교) | Dooil Kim (Dankook Univ.)
• 구자용(서울시립대학교) | Jayong Koo (Univ. of Seoul)
• 현인환(단국대학교) | Inhwan Hyun (Dankook Univ.)