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수중폭기장치에 의한 용수전용댐의 수층파괴 및 수질개선에 대한 연구
전항배,김학성,이태용 ( Hang Bae Jun,Hag Seong Kim,Tae Young Lee ) 한국물환경학회 1996 한국물환경학회지 Vol.12 No.2
Yeoncho dam, a small reservoir for industry and domestic water supply, located at Geoje island in the southern part of Korean peninsula was constructed and have been operated since 1979. Odor and taste problem was occurred 2 years after the initiation of storage of water. For the improvement of water quality, forced circulation of water throughout the reservoir was made by using a 5 air-lifters. In this study, the influences of air-lifters operation on the water quality control were investigated by monitoring physicochemical and biological factors. Operation of air-lifters removed odor and taste completely since 1992. During the first year(1992) operation, however, there was evidences of occurrence of algal bloom in spring and autumn due to the turnover of the reservoir, while no significant variations in water quality were detected in 1993. Odor and taste in this case seems to be originated from anaerobic decomposition of benthic decompositions and from algal growth. The forced circulation supplied DO to the bottom layer of the reservoir and prevented the layer from anaerobic condition. Total nitrogen showed apparent decrease right after the start-up of the air-lifters, while total phosphorus(T-P) and Chlorophyll-a showed very high concentrates in the early 1992. The last two parameters were still high even after 1993, however, they showed a tendency of gradual decrease as the operation time prolonged.
전항배,이상형 ( Hang Bae Jun,Sang Hyung Lee ) 충북대학교 산업과학기술연구소 1996 산업과학기술연구 논문집 Vol.10 No.1
Abstract_Roman The sho e of water resourees is expeeted to be more serious with the rapid increaee in population and the industrielization. 54any dams have been constructed and sev 1 dams is schedu1ed to construct a 'tieinally fcr the increased water dem