| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a water quality conservation system which can efficiently control operation of an oxygen-dissolved water supply device by detecting supply effect of oxygen, and is effective in a phytoplankton measure. <P>SOLUTION: The water quality conservation system for maintaining the water quality of a water area having density stratification different in water temperature, salt concentration, or suspended solid concentration in a good condition comprises an aeration circulation means for discharging air into a water area having an arbitrary depth, and an oxygen-dissolved water supply means for sucking water from the water area below the air exhaust part of the aeration circulation means to dissolve oxygen into the sucked water, and exhausting the obtained oxygen-dissolved water to the water area below the air exhaust part of the aeration circulation means. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
