| abstract |
PROBLEM TO BE SOLVED: To provide a quality photocatalyst for decomposing organic matter in lakes, marshes, reservoirs or oceans, and to effectively and inexpensively prevent the generation and proliferation of pests using the photocatalyst. A method for growing pests is provided. SOLUTION: A photocatalyst, which is formed by supporting a photocatalyst on a granular and porous carrier, is allowed to float on a water surface and is sprinkled and floated, and organic matter is oxidatively decomposed by light irradiation. |