AuthorsCan Sener, Serife E.
Thomas, Valerie M.
Hogan, David E.
Maier, Raina M.
Barton, Mark D.
Crittenden, John C.
Amy, Gary L.
KAUST DepartmentEnvironmental Science and Engineering Program
Water Desalination and Reuse Research Center (WDRC)
Biological and Environmental Science and Engineering (BESE) Division
Online Publication Date2021-08-24
Print Publication Date2021-09-06
Embargo End Date2022-08-24
Permanent link to this recordhttp://hdl.handle.net/10754/670801
MetadataShow full item record
AbstractCritical metals, identified from supply, demand, imports, and market factors, include rare earth elements (REEs), platinum group metals, precious metals, and other valuable metals such as lithium, cobalt, nickel, and uranium. Extraction of metals from U.S. saline aqueous, emphasizing saline, sources is explored as an alternative to hardrock ore mining. Potential aqueous sources include seawater, desalination brines, oil- and gas-produced waters, geothermal aquifers, and acid mine drainage, among others. A feasibility assessment reveals opportunities for recovery of lithium, strontium, magnesium, and several REEs from select sources, in quantities significant for U.S. manufacturing and for reduction of U.S. reliance on international supply chains. This is a conservative assessment given that water quality data are lacking for a significant number of critical metals in certain sources. The technology landscape for extraction and recovery of critical metals from aqueous sources is explored, identifying relevant processes along with knowledge gaps. Our analysis indicates that aqueous mining would result in much lower environmental impacts on water, air, and land than ore mining. Preliminary assessments of the economics and energy consumption of recovery show potential for recovery of critical metals.
CitationCan Sener, S. E., Thomas, V. M., Hogan, D. E., Maier, R. M., Carbajales-Dale, M., Barton, M. D., … Amy, G. L. (2021). Recovery of Critical Metals from Aqueous Sources. ACS Sustainable Chemistry & Engineering. doi:10.1021/acssuschemeng.1c03005
SponsorsThis work was supported in part by the National Institute of Environmental and Health Sciences (NIEHS) Superfund Program (SRP) Grant P42 ES004940.
PublisherAmerican Chemical Society (ACS)