MG31709 - Diamond Synchrotron: 4D imaging of enzyme induced carbonate precipitation

The development of underground storage for CO2 and H2 is an essential part of the green energy transition provided we can prevent leakage into groundwater and the atmosphere. Enzyme induced carbonate precipitation (EICP) is a novel bio-cementation technique that can create the necessary impermeable barriers in porous host rocks where traditional cements and grouts cannot. At present however, limited understanding of the dynamics of EICP, calcite crystal growth, and how this is related to properties of the porous media is slowing development of EICP technologies for real-world deployment. This experiment will use synchrotron XCT to deliver much needed insight into these processes.

4 days synchrotron XCT imaging the precipitation of calcium carbonate mineral within porous media due to bacteria and plant-based urease enzyme with the aim of understanding this process so that it can be used as a low carbon alternative to cement.