Sequential carbonate mineralization of desalination brine for CO2 emission reduction

Realistic deployment scenarios/pathways that can be used to constrain Earth System models

“…On a global scale more than 95 million m 3 of desalinated water is daily produced, generating more than 141 million m 3 day -1 of brine that is typically discharged into the oceans negatively affecting the receiving ecosystems (Jones et al, 2019). This number is on the rise, since recent estimates suggest that by 2030 the global desalination capacity will be more than (Bang et al, 2019) as is also the case for salinity (Ihsanullah et al, 2021).…”

“…Various pathways for using reject brines in CCS have been proposed, e.g., for CO2 capture from flue gases (Dindi et al, 2015) or for the mineralisation of Ca and Mg in brine through CO2 interaction (Bang et al, 2019). When using brines in CCS, apart from capturing CO2 salinity is also decreased, which is beneficial for receiving ecosystems (Mustafa et al, 2020).…”

Study of the Effect of Leucine on Calcium Carbonate Precipitation in a Circular Economy Perspective

“…As pointed out by the recent review by Ogunbiyi and coworkers [12], the recovery of valuable minerals among which CaCO 3 from desalination brines is a key feature in brine management that is gaining increasing interest in scientific literature. This because CaCO 3 recovery processes from brines are methods of limiting CO 2 emissions or removing CO 2 from desalination plants [13].…”

Enhanced precipitation of magnesium carbonates using carbonic anhydrase

“…12 To offset this cost several authors have proposed alternative sources of alkalinity, which are more reactive, such as industrial waste, mine tailing, and brines (including salt lake brines, mine drainage, seawater, and desalination brines). [13][14][15][16][17][18] With these alternative sources CO 2 mineralization can be carried out at low temperatures and low p CO 2 . Brines are particularly interesting because alkaline earth elements (e.g., Ca, Mg, and Na) are readily accessible for precipitation.…”