| 摘要 |
PROBLEM TO BE SOLVED: To provide a practical purification method which can purify substances polluting soil and ground water actually in a short time.SOLUTION: The method practiced in the site where soil or ground water is polluted by pollutants includes: a step in which an injection well 1 and a pumping well 2 are formed so that injection water passes through a pollution region, and ground water containing pollutants is pumped up from the pumping well 2; a step in which the pumped water is led into a bioreactor 15 on the ground for propagating microorganisms including the microorganisms in soil of the site to decompose the pollutants; and a step in which an apparatus 26 for generating ultrafine bubbles is arranged on the side of the injection well 1, and ultrafine bubbles are introduced into the decomposed pumped water and injected from the injection well 1. |
