| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a cleaning filter and a cleaning unit equipped therewith, having such a scheme that photosynthesizing organisms are allowed to adhere to and grown on filter members subject to transmission of light with wavelengths suitable for photosynthesis, and raising water for fishes or the like is cleaned efficiently at low cost by photosynthesis promotion by the aid of the organisms. SOLUTION: This cleaning filter and the cleaning unit equipped therewith are intended for cleaning raising water for fish culture contaminated with ammonia-nitrogen, nitrate-nitrogen, nitrite-nitrogen, phosphorus and other contaminants. The filter 1 is made of a member subject to transmission of light with wavelengths suitable for photosynthesis, photosynthesizing organisms are allowed to adhere to and grown on the filter 1, a plurality of these filters 1 are adjacently arranged in a tank 2, and the raising water is cleaned by photosynthesis promotion by the aid of the above organisms adhered to the filters 1.</p> |
