Development of a Floating Aeration Device Using Rotating Cone

Eutrophication in freshwater areas is caused by organic pollution associated with human activities, leading to excessive algae growth and a decrease in dissolved oxygen (DO), which in turn causes water quality deterioration. In Japan, massive blooms of cyanobacteria (blue-green algae) are a common problem in stagnant water bodies. Under low-oxygen conditions, anaerobic bacteria become active, contributing to the generation of unpleasant odors. Aeration, which increases DO levels, is considered an effective method for improving water quality. However, conventional stationary aeration devices face challenges in addressing large or complex water bodies.