Bullock et al. (2023): Experimental investigation of multiple industrial wastes for carbon dioxide removal strategies

Liam A. Bullock, Jose-Luis Fernandez-Turiel, David Benavente IN: International Journal of Greenhouse Gas Control, 129, 103990, https://doi.org/10.1016/j.ijggc.2023.103990

Industrial solid waste by-products are being increasingly employed for geochemical carbon dioxide removal (CDR) strategies due to their fine grain size, accessibility, and large annual production tonnages. Here, a range of such by-products has been tested experimentally for their reactivities with CO₂ and water. Sample solutions were monitored for 100 h for changes in chemistry, and solid samples were characterised pre- and post-experiment. Samples rich in Ca- and Mg-bearing minerals, such as dunite, kimberlite, and ilmenite mine tailings, as well as marble quarry cuttings, were key cation sources.

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