Unorthodox Desalination Method Could Transform Global Water Management

Over the past year, Columbia Engineering researchers have been refining their unconventional desalination approach for hypersaline brines—temperature swing solvent extraction (TSSE)—that shows great promise for widespread use. The team now reports that their method has enabled them to attain energy-efficient zero-liquid discharge of ultrahigh salinity brines—the first demonstration of TSSE for ZLD desalination of hypersaline brines.