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Unorthodox desalination method could transform global water management

from Columbia University School of Engineering and Applied Science via EurekAlert

Unorthodox desalination method could transform global water management Columbia University School of Engineering and Applied Science via EurekAlert 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. TSSE is radically different from conventional methods because it is a solvent-extraction-based technique that does not use membranes and is not based on evaporative phase-change: It is effective, efficient, scalable, and sustainably powered. In a new paper, the team reports that their method has enabled them to attain energy-efficient zero-liquid discharge (ZLD) of ultrahigh salinity brines — the first demonstration of TSSE for ZLD desalination of hypersaline brines. READ MORE

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