| A study on the optimum installation plan of algae fence at yeoncho dam waterintake tower in Geoje, Korea |
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학술지명 NITERNATIONAL SYMPOSIUM ON RIVER AND LAKE ENVIRONM
저자 신재기,김세원,이상욱,이승윤
발표일 2014-10-27
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Recently water quality deterioration associated with algal broom increases and taste and odor compoundpeople’s concern in drinking water. Thus, various water quality management is ongoing in each reservoir for stabledrinking water supply. This study focuses on algae fence application to prevent algae entrainment in the water intaketower. As a result, the longer separation distance is the better between intake system and algae fence. However,considering maintenance and facility investigation the best separation distance is approximately 8~10m. The besttype of algae fence is dodecagonal which can secure constant distance from all direction and moving frame type inthe direction of upper and down is appropriate for maintenance when water level is changing. When the depth foralgae fence is 2~3m, the possibility of algae entrainment still exist. Thus, this study proposed that the most efficientand desirable depth for algae fence is 2/3~3/4 of total depth. Based on the results, the algae fence proposed in thisstudy will contribute to reduce algae entrainment and to supply drinking water with good water quality. In addition,water quality complaints due to taste and odor occurrence is possible to prevent in advance. In water treatmentplants, the occurrence of filter paper clogging will be reduced, water treatment efficiency will be increased, thechemical costs for water treatment and energy costs are expected to be reduced. |