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Design Method of Diffuse Bubble Plume Aerators for Water Quality Management of Reservoirs  

Seo, Dongil (충남대학교 환경공학과)
Song, Museok (홍익대학교 조선해양공학과)
Hwang, Hyundong ((주)엠큐빅)
Choi, Jae-hun ((주)엠큐빅)
Publication Information
Journal of Korean Society of Water and Wastewater / v.18, no.4, 2004 , pp. 437-444 More about this Journal
Abstract
To control algal bloom in reservoirs in Korea, artificial circulation systems have been applied. Diffuser block aeration systems have been increasingly used in Korean reservoirs especially for shallow ones. However, there has been no sound theoretical background for the design and operation of the system. Also there has not been sufficient post-installation studies to validate the effectiveness of the system. As a result, it has been repeatedly reported that the success of the system is not certain. Proper consideration on thermal stratification regimes of reservoirs and flow dynamics induced by bubble plumes are essential elements in design processes of the aeration system. This paper discusses the current methods in the design of diffuser type aeration system and suggests a new design method based on fluid mechanical theory. Example calculations were discussed using observed data of the Yeoncho Dam and it seems that the results represent the current situation successfully.
Keywords
Algal bloom; Thermal stratification; Diffuser aeration system; Bubble plume; Yeoncho Lake;
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