This study aimed to develop a method to optimize residual chlorine concentrations in the process of providing water supply. To this end, this study developed a model capable of optimizing the chlorine input into the clearwell in the purification plant and the optimal installation location of rechlorination facilities, and chlorine input. This study applied genetic algorithms finding the optimal point with appropriate residual chlorine concentrations and deriving a cost-optimal solution. The developed model was applied to SN purification plant supply area. As a result, it was possible to meet the target residual chlorine concentration with the minimum cost. Also, the optimal operation method in target area according to the water temperature and volume of supply was suggested. On the basis of the results, this study derived the most economical operational method of coping with water pollution in the process of providing water supply and satisfying the service level required by consumers in the aspects of cost effectiveness. It is considered possible to appropriately respond to increasing service level required by consumers in the future and to use the study results to establish an operational management plan in a short-term perspective.

1. 서 론
 2. 연구방법
  2.1 연구대상지역
  2.2 잔류염소농도 모델링 방법
  2.3 최적 잔류염소농도 관리를 위한 최적화 방법
  2.4 최적 잔류염소농도 관리 방안
 3. 연구 결과
  3.1 최적 재염소시설 설치지점 도출 결과
  3.2 최적 잔류염소농도 관리 방안 도출 결과
 4. 결 론
 사 사
 References

• 김기범(서울시립대학교 환경공학과,Environmental Engineering, University of Seoul) | Kibum Kim
• 형진석(서울시립대학교 환경공학과, Environmental Engineering, University of Seoul) | Jinseok Hyung
• 서지원(서울시립대학교 환경공학과, Environmental Engineering, University of Seoul) | Jeewon Seo
• 신휘수(서울시립대학교 환경공학과, Environmental Engineering, University of Seoul) | Hwisu Shin
• 구자용(서울시립대학교 환경공학과, Environmental Engineering, University of Seoul) | Jayong Koo Corresponding author