Maintenance of Brine Transparency in Salinity Gradient Solar Ponds

[+] Author and Article Information
J. R. Hull

Materials and Components Technology Division, Argonne National Laboratory, Argonne, IL 60439

J. Sol. Energy Eng 112(2), 65-69 (May 01, 1990) (5 pages) doi:10.1115/1.2929648 History: Received June 12, 1989; Revised December 08, 1989; Online June 06, 2008


Experience with maintenance of brine transparency during the more than eight years of operation of the 1000 m2 Research Salinity Gradient Solar Pond (RSGSP) at Argonne National Laboratory suggests that, in many sodium chloride brines, algal growth may be readily curtailed by minimizing the phosphate content of the brine. The addition of modest amounts of aluminum sulfate (<5 g m−2 yr−1 ) to precipitate soluble phosphate in the RSGSP has resulted in a reduction of the amount of chlorine used from 13 g m−2 yr−1 to 2.8 g m−2 yr−1 , while still maintaining good transparency in the pond brine.

Copyright © 1990 by The American Society of Mechanical Engineers
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