Efficient Operation of Bubble Diffusers for the Thermocline Control

Abstract

Adoption of the light-limitation method for preventing reservoir eutrophication requires an efficient destratification system. Here, bubble plume system was discussed. The stratification is destroyed with the evolution of the intermediate layer, which is bounded from the upper and the lower layers by fronts. Most efficient destratification is achieved with the equivalent plume number of 1300. The upper front density gap is parameterized with the bubbling rate, the depth and intensity of the initial thermocline. For the light limitation method, the bubbling rate should be large enough to make it small. For the hypolimnetic aeration, on the other hand, the bubbling is to be weak as to keep it large.