"The Little Yellow Duck Has Arrived!" Waterwheel-Style Aeration and Wave-Surging Machine Used for Water Management in Rihu Lake

A cute little yellow duck "jumps out" from the surface of Rihu Lake, spinning rapidly. "Actually, this is a waterwheel-style aeration and wave-surging machine, and it's also the first cartoon-shaped wave-surging machine in our district," said a staff member from the Jiangbei District Water Management Office.

At the scene, reporters saw an adorable little yellow duck sitting on a blue floating board on the north side of Rihu Lake, surrounded by ripples. From a distance, it looked as if the little yellow duck was swimming on the lake. "Due to its design, the 'Little Yellow Duck' wave generator differs from the fountain-style wave generators we usually see, which create upward water columns," explained the head of the company responsible for the Rihu Lake water quality management. The working principle of this wave generator is that the rotating impeller of the floating body produces a wave effect. Through continuous operation, it drives the river water to rotate and generate swirling currents, forming water waves to achieve the purpose of stirring the water. This allows the water to have a large three-dimensional contact area with the air, increasing the gas-liquid contact area, enhancing the dissolved oxygen rate, strengthening the utilization rate of sunlight, promoting the growth of plankton and plants, expanding and strengthening the aquatic ecosystem, and improving the water's self-purification capacity.

Staff from the Jiangbei District Water Management Office introduced that since the beginning of this year, in order to improve the water quality of Rihu Lake, 19 sets of biological carbon fiber systems and biological carbon fiber membranes, 20 sets of biological purification systems, 2 sets of solar-powered fountain aeration systems, and 2 landscape fountain devices have also been deployed in the water. Bank protection plants have also been replanted along the lake shore to beautify the riverside landscape.