| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method which is easy to execute, is excellent in economical efficiency and is capable of efficiently removing nitrogen in a comparatively short residence time. <P>SOLUTION: In a pure soap extract storage tank 6, soap extract extracted from pure soap is stored. By making the soap extract flow from the pure soap extract storage tank 6 into a flow control tank 1 and a denitrification tank 2 storing water to be treated such as river water containing nitrogen components and constituting metallic soap with components in the water to be treated, denitrification bacteria are positively proliferated, and the nitrogen components in the water to be treated are removed. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
