| 摘要 |
PURPOSE:To purify efficiently filthy water with a photosynthetic bioslime by providing a vessel made of a light transmissible material in a water tank, introducing filthy water into the water tank, inoculating photosynthetic microorganism and aerobic bacteria to the filthy water, and irradiating the water with light. CONSTITUTION:V-shaped channel like vessels 2-10 made of a transparent plastic provided in a water tank 1. Natural light or artificial light is irradiated from above and filthy water is introduced into the tank 1 and a mixture of several kinds among microalgae, photosynthetic bacteria, and anaerobic bacteria, or one kind thereof are (is) inoculated to the filthy water. After several days, a photosynthetic bioslime comprising photosynthetic microorganism as preferential species is formed on the surface of the vessel, and microalgae, photosynthetic bacteria, and anaerobic bacteria propagate in the filthy water. When filthy water is charged to the water tank 1 where the cultivation of microorganisms has been established through an inlet port 11, the filthy water is purified while passing through sectional tanks 28-37 by the effect of photosynthetic bioslime and fungi or bacteria suspending in the liquid.
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