| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a cleaning system which requiries no particular construction for cleaning it and is capable of effectively cleaning underground water using a permanently existing detection tube at a gasoline station. <P>SOLUTION: The system for cleaning the underground water comprises (1) oxygen supply means (5 and 6), and (2) barrier means (7) locating on the water surface of the underground water and shielding the underground water from the upward atmosphere, wherein the oxygen supply means supply oxygen to the underground water located below the barrier means. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
