| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water cleaning system capable of efficiently cleaning water in rivers or ponds. SOLUTION: The water cleaning system P has a main body section having a gas releasing and diffusing section A1 and a gas generating section for sending gas to the gas releasing and diffusing section A1 and a filter medium installing section B having a filter medium unit B2 in the state of hanging the filter media 1002. The gas releasing and diffusing section A1 and the filter medium installing section B are separately formed. The gas releasing and diffusing section A1 houses a gas diffusion board for releasing the gas sent from the gas generating section therein and has a releasing pipe section 20 having holes 22 at the side walls and a gas diffusing section 40 for diffusing the upwardly released gas, and by releasing fine air bubbles from the gas diffusion board, large convection is formed and the growth of the bacteria in the filter media 1002 can be promoted.</p> |
