Modelling Water Quality Improvements in a South Korean Inter-Basin Water Transfer System
- 주제(키워드) CE-QUAL-W2 , constructed wetlands , Doam Lake watershed , EFDC , HSPF , non-point source pollution control , selective withdrawal
- 주제(기타) Water Resources
- 설명문(일반) [Lee, Hye Won; Choi, Jung Hyun] Ewha Womans Univ, Ctr Climate Environm Change Predict Res, 52 Ewhayeodae Gil, Seoul 03760, South Korea; [Yeom, Bo-Min; Choi, Jung Hyun] Ewha Womans Univ, Dept Environm Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS
- OA유형 gold, Green Published
- 발행기관 MDPI
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000175156
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/w12113173
초록/요약
In this study, we investigated the feasibility of using constructed wetlands for non-point source pollution reduction. The effect of constructed wetlands in reducing suspended solids (SS) was analyzed using an integrated modeling system of watershed model (HSPF), reservoir model (CE-QUAL-W2), and stream model (EFDC) to investigate the behavior and accumulation of the pollution sources based on 2017 water quality data. The constructed wetlands significantly reduced the SS concentration by approximately 30%, and the other in-lake management practices (e.g., artificial floating islands and sedimentation basins) contributed an additional decrease of approximately 7%. Selective withdrawal decreased in the average SS concentration in the influents by similar to 10%; however, the effluents passing through the constructed wetlands showed only a slight difference of 1.9% in the average SS concentration. In order to meet the water quality standards, it was necessary to combine the constructed wetlands, in-lake water quality management, and selective withdrawal practices. Hence, it was determined that the model proposed herein is useful for estimating the quantitative effects of water quality management practices such as constructed wetlands, which provided practical guidelines for the application of further water quality management policies.
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