| Title |
Design of Structural BMPs for Low Impact Development (LID) Application and Modelling Its Effect on Reduction of Runoff and Nonpoint Source Pollution: Application of LIDMOD2 |
| Authors |
김정진 ( Jung Jin Kim ) ; 김태동 ( Tae Dong Kim ) ; 최동현 ( Dong Hyuk Choi ) ; 전지홍 ( Ji Hong Jeon ) |
| Keywords |
LIDMOD2; Low impact development; LID; Nonpoint source pollution; Structural BMPs |
| Abstract |
Low impact development (LID) technique is recently proposed as new concept to reduce surface runoff and pollutant loading with various best management practices (BMPs). In this study, LIDMOD2, which is one of the model to evaluate LID, was applied at Mohyeon developing area to evaluate the redcution of annual runoff and pollution loading, cost-reduction efficient by LID with design of structural BMPs including bioretention, wet pond, and wetland. As a simulation results, the bioretention had the highest reduction efficiency for runoff (41.43%), and 22% for T-N and 22% for BOD. Wet pont had the highest reduction efficiency for T-P as showing 25% of reduction rate. As a results of cost-reduction efficient, wet pont represented the highest cost-effective for T-N and BOD with showing 0.43 T-P kg/million won and 17.37 BOD kg/million won, respectively, and bioretention represented the highest cost-effective for T-P with showing 2.52 T-P kg/million won. LID technology could reduce effectively surface runoff and nonpoint source pollution and construct sustainable development. LIDMOD2 could be suggested as useful tool to evaluate and design LID. |