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METHOD FOR BARIUM AND NORM REMOVAL FROM PRODUCED WATER

United States Patent Application

20170217802
A1
View the Complete Application at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A method of removing barium and naturally occurring radioactive material from produced water. The method includes pretreating the produced water having a pH in a range of from about 4.0 to about 10.0 with a sulfate source to form a suspension of barium sulfate, radium sulfate, or a combination thereof, treating the pretreated produced water with an anionic flocculant and gravitational])' separating the treated produced water from the barium sulfate, radium sulfate, or a combination thereof.
KOSTEDT, IV, William Leonard (Clifton Park, NY), WATKINS, Vicki Herzl (Alplaus, NY), SILVA, James Manio (Clifton Park, NY), GETTINGS, Rachel Marie (Albany, NY), WREDE, Peter Harold (Delmar, NY)
15/ 124,228
March 9, 2015
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH AND DEVELOPMENT [0002] This invention was made with Government support under Subcontract 10122-07 to Research Partnership to Secure Energy for America (RPSEA), a contractor to the United States Department of Energy under prime contract DE-AC-07NT42677. The Government has certain rights in the invention.