Carbon Dioxide Research Group

PI(s): 
Taro Takahashi

Sequestration of CO2 generated by power plants by injection into deep aquifers (geological sequestration) has been proposed as a possible alternative for the reduction of excessive greenhouse gases in the atmosphere. For a long-term geological sequestration of CO2 solid end products such as (Ca,Mg)CO3 are desirable due to their chemical stability, non-toxic nature and lack of fluidity for rapid migration. Our hypothesis is that aquifers associated with mafic igneous rocks are good canditates for sequestering CO2, presumed that the geological and hydrogeological conditions are suitable for high pressure CO2 injections. When high pressure CO2 is injected into deep aquifersm it will acidify the groundwater.