| 摘要 |
PROBLEM TO BE SOLVED: To denitrify in a good manner in the hydrosphere environment by fixing denitrified bacteria as denitrification bacteria in gel carriers in a proliferation fixing material of denitrification bacteria in a hydrosphere environment. SOLUTION: Denitrified bacteria as denitrification bacteria fixed in gel carriers are used as a proliferation fixing material for the denitrification bacteria used for purifying a drain treatment equipment and a fish firming water system. At that time, preferably symbiosis bacteria of denitrified bacteria and photosynthesis bacteria are used as denitrification bacteria, and as gel carriers, a material composed of a proliferation fixing material carriers, namely a water- soluble silicic acid compound and polyvinyl alcohol as main components and containing a culture medium and the water content is used. As for the denitrified bacteria, at least one of Nitrosomonas, Nitrobactor, Pseudomonas, Alcaligenes or the like is used, and as the photosynthesis bacteria, purple sulfur bacteria and/or purple non-sulfur bacteria are used. |
