| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device by which an underground polluted region polluted by chemicals, in particular by an organic chlorine compound, can be purified in a short period of time, at a low cost and with low energy consumption. SOLUTION: At first, underground water W is pumped up by a pumping means 2 from the underground polluted region X or from the vicinity thereof. Then, pumped-up underground water is subjected to purification treatment (such as aeration treatment of the pumped-up water and oxidation treatment) with a purifying means 4. Further, an oxidant (such as H2O2) is added to purified water by an oxidant adding means 6. Thereafter, purified treated water to which the oxidant is added is injected again into the underground polluted region or the vicinity thereof with an injection means 8.
|
