The Challenges We Solve

Conventional methods for carbon capture, resource recovery, and water treatment often come with high costs, inefficiencies, and environmental concerns. REDstack’s electrochemical stacks eliminate these bottlenecks, making sustainability scalable and profitable.

Salt removal from water
Treating brackish or industrial wastewater requires enormous energy and creates high volumes of waste. REDstack’s Desalt-ED stacks make desalination more sustainable by:
  • Energy-efficient salt removal (<0.15 kWh/m³)
  • Water recovery up to 95%
  • Modular, scalable design for various water recycling projects
Resource Recovery
Recovering resource elements like lithium, nitrogen, and magnesium is traditionally chemical-intensive and wasteful. REDstack’s bipolar electrodialysis stacks enable:
  • Direct elemental recovery without chemical loss
  • Continuous acid reuse in nitrogen stripping, minimizing environmental impact
  • High-purity lithium extraction from brines for battery production
Carbon Capture
Direct Air Capture (DAC) and Direct Ocean Capture (DOC) technologies require electrochemical support to be energy-efficient. REDstack’s EDBM stacks:
  • Extract CO₂ from alkaline solvents with zero liquid contamination
  • Enable 100% solvent reuse for continuous operation
  • Integrate seamlessly into DAC/DOC processes
REDstack - Pure Water Group (c) Fred Schuch
Our Technology

The REDstack Advantage

Our ElectroMembrane Stacks are at the core of industrial sustainability. They don’t just filter water or capture CO₂—they redefine how these processes work.

Desalt-ED: Smarter Water Recycling

Handling up to 36 m³/h flow and 250 kg TDS per hour, Desalt-ED removes up to 65% salt with an optimized design that prevents ionic shortcut currents, ensuring efficient, reliable water treatment.

EDBM Cross-Flow: High-Purity CO₂ & Resource Recovery 

With zero liquid contamination, EDBM Cross-Flow enables CO₂ capture, on-site caustic and acid production, and efficient ammonium recovery, delivering seamless, high-performance electrochemical separation.

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Reliable Stacks, Scalable Solutions

Technical Excellence & Engineering Support

All REDstack stacks undergo rigorous pressure and leak testing before leaving the factory, ensuring unmatched reliability. To meet increasing demand, we are scaling up production to continuous manufacturing, securing volume for large projects and cost-effective stack deployment.

Beyond product supply, REDstack offers:

  • Basic Engineering Packages (PFD, P&ID, instrumentation lists)
  • Process integration support
  • Health monitoring & service solutions
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