| 摘要 |
PROBLEM TO BE SOLVED: To solve the following problem: ammonia nitrogen and nitrite nitrogen can be mixed together to show an optimum ratio, when a nitrite nitrogen solution can be efficiently produced, because the ratio between the ammonia nitrogen and the nitrite nitrogen, which can be efficiently decomposed, cannot be easily adjusted by pH, though an anammox method, in which the ammonia nitrogen can be decomposed even into nitrogen gas and water, has the advantage that efficient decomposition can be performed.SOLUTION: A method for producing a nitrite nitrogen solution includes the steps of: loading ammonia nitrogen-containing wastewater into a treatment tank; loading a microbial community, which has three capabilities, that is to say, an ammonia nitrogen oxidizing capability, a nitrite nitrogen oxidizing capability and nitrate nitrogen reducibility, into the treatment tank; and aerating the inside of the treatment tank. |
