| 摘要 |
PROBLEM TO BE SOLVED: To obtain sufficient insolubilization effect to a cyanide compound, for a cyan polluted soil ground polluted with the cyanide compound that becomes a pollution source of the soil ground.SOLUTION: An insolubilization method in which cyanogen included in a polluted ground G is subjected to insolubilization includes anaerobic treatment and insolubilizing material injection treatment. The anaerobic treatment is to inject a nutrient material X1 in the polluted ground G through an injection well 21 to activate anaerobic microbes in the ground G for making the ground G anaerobic. In the insolubilization material injection treatment, an insolubilization material including a water-soluble iron salt is injected in the polluted ground G made anaerobic, through the injection well 21. |
