|
DOI : , Vol.21, No.2, 59 ~ 70, 2013
|
| Title |
| Effect of Turbidity on Flocs Formation on Secondary Sewage EffluentManagement of Eutrophication by Controlling In- and Out-flows in Hoedong Reservoir |
| 윤철종 Churl Jong Yun , 전용보 Yong Bo Jun , 배은영 Eun Young Bae , 김현실 Hyun Sil Kim , 황보봉형 , 김정아 Jeon Ga Kim , 서창동 Chang Dong Seo , 이정규 Jeong Kyu Lee , 손희종 Hee Jong Son |
|
|
|
| Abstract |
| This study utilized the methodology of gross contamination management, and the control of inflows and outflows such as river water input and dam drain were used to accomplish the reduction of gross contamination in Hoedong (HD) Reservoir. We made four assumptions related with factors of inflows and outflows, and then the results of assumptions were compared with actual data of 2009. In the actual state that there were little availability of overflow at dam because of the structural safety of dam and the function of flood control, the influence of water input from Nakdong (ND) River was investigated to find out the negative effects. On the other hand, when the thermal stratification was formed from Aug. to Oct., dam drain could generate positive effects on the water quality in HD Reservoir. The best control conditions for inflows and outflows of HD Reservoir were to minimize the input of ND River water and to discharge selectively the low layer water of HD Reservoir as much as possible at the condition of stratification that water temp. of low layer is beyond 20℃. The continuous managements of gross contamination by the controlling of inflows and outflows were estimated to improve the water quality and reduce the pollution level at the sediments. |
|
|
| Key Words |
| Controlling flows, Eutrophic reservoir, Selective discharge, Stratification |
|
|
|
|
|
PDF