(JP11235580-A)   NOVELTY - The process for remedying a soil contaminated with a pollutant comprises: (a) freezing a soil contaminated with a pollutant; and (b) introducing at least one microorganism capable of decomposing the pollutant, an inducer for making a microorganism express an ability to decompose the pollutant, and a nutrient for growth of a microorganism capable of decomposing the pollutant.    USE - For remediating environment e.g. soil, groundwater etc. polluted with compounds e.g. hydrocarbons, halogenated hydrocarbons using a microorganism. Soil treated by the above method and a control soil (treated without the frozen treatment) were tested after treatment for residual N-hexadecane. With the above treatment, the residual N-hexadecane was 0.002 g while the control soil had 0.05 g residual N-hexadecane.    ADVANTAGE - The process achieves uniform distribution of at least one microorganism capable of decomposing the pollutant. Also the pollutant decomposition efficiency is remarkably promoted when the polluted soil is first frozen and a liquid containing the microorganism is injected into the soil. Also the soil remediation period is reduced.    (US6121040-A)   NOVELTY - The process for remedying a soil contaminated with a pollutant comprises: (a) freezing a soil contaminated with a pollutant; and (b) introducing at least one microorganism capable of decomposing the pollutant, an inducer for making a microorganism express an ability to decompose the pollutant, and a nutrient for growth of a microorganism capable of decomposing the pollutant.    USE - For remediating environment e.g. soil, groundwater etc. polluted with compounds e.g. hydrocarbons, halogenated hydrocarbons using a microorganism. Soil treated by the above method and a control soil (treated without the frozen treatment) were tested after treatment for residual N-hexadecane. With the above treatment, the residual N-hexadecane was 0.002 g while the control soil had 0.05 g residual N-hexadecane.    ADVANTAGE - The process achieves uniform distribution of at least one microorganism capable of decomposing the pollutant. Also the pollutant decomposition efficiency is remarkably promoted when the polluted soil is first frozen and a liquid containing the microorganism is injected into the soil. Also the soil remediation period is reduced.