| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively remove a pollutant such as heavy metals or the like, which are contained in an area set to a designated area according to the Soil Pollution Law to be blocked, in a short period using a water supply well and a water pumping-up well. SOLUTION: The water supply well used for the automatic supply of water is excavated in a polluted area and a water level sensor is attached to the water supply well to always keep a predetermined water supply amount while the water pumping-up well is excavated so as to be arranged on the downstream side of the water supply well. The water pumping-up well is made deeper than the water supply well to penetrate the injected water, which is sent to the polluted area from the water supply well, in a peripheral direction and a depth direction in the ground. COPYRIGHT: (C)2006,JPO&NCIPI
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