| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water cleaning system which effectively removes nitrogen in water to be cleaned, and is excellent in comprehensive water cleaning capacity. <P>SOLUTION: The water cleaning system comprises at least (1) an anaerobic cleaning mechanism which is used as a first water cleaning mechanism for the water to be cleaned, and uses an ascending flow anaerobic sludge bed as a water cleaning means, and (2) a wet/dry cleaning mechanism which is used as a second cleaning mechanism for first cleaned water obtained by the mechanism (1), has aerobic bacterial flora, and has a siphon mechanism capable of raising and lowering the water level in the bacterial flora of the first cleaned water introduced. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
