| Title |
Water Quality Modeling Study of the Hantan River to Predict the Impact of a Small Dam for Hydroelectric Power Generation |
| Authors |
박석순(Seok Soon Park), 이시진(Si Jin Lee), 이용석(Yong Seok Lee), 최경식(Kyoung Sik Choi) |
| Abstract |
A water quality modeling study was performed for the Hantan River located at Yeoncheon-gun, Kyunggi-do, in order to predict the impact of a small dam for hydroelectric power generation. Model construction was based on QUAL2E which was developed by United States Environmental Protection Agency. The study area was divided into 12 reaches according to the hydraulic characteristics of the Hantan River. Each reach was then subdivided into uniform computational element of 0.25㎞. Five synoptic surveys were performed from March to November, 1996. Data from two of them were used for model calibration and verification. In most cases, there were reasonable agreements between the model results and the field measurements. The validated model was then used to predict the impact of the dam on water qualities. The deterioration of water qualities was found in the study area from the field surveys. From the modeling study, however, it was predicted that the dam does not cause a significant impact on water qualities, if the base flow would be discharged from the dam. The control of pollution sources located at the Youngpyung branch was suggested along with the maintenance of base flow from the dam for the water quality conservation of the Hantan River. |