RN Solutions
About us
RN Solutions – high purity water through sustainable membrane distillation
RN Solutions develops patented membrane distillation modules that convert seawater, brackish water, and industrial effluent into high purity water (<2 µS/cm) using waste heat as the driving energy source. Our technology provides system integrators and industrial users with a sustainable and economically attractive pathway to ultrapure water.
With our modular solutions, organizations can reduce their dependence on freshwater resources, increase overall resource efficiency, and turn available waste heat into valuable water quality.
The compact, energy efficient modules integrate easily into existing systems, making circular and sustainable water purification both practical and scalable.
Our product range
We offer three types of product groups, each with a capacity between 0,25 m3 – 7,5 m3 permeate per module per day:
• Direct Contact Membrane Distillation modules (DCMD)
• Liquid / Air Gap Membrane Distillation modules (L-AGMD)
• Heat Exchangers
Our solutions provide flexible, efficient and sustainable water purification for various industrial applications.
RN Solutions brings membrane distillation to industry – efficient, modular, and profitable.
Turn waste heat into value with RN Solutions.
Products
Air - Liquid Gap Membrane Distillation 250cm2
RN Solutions’ Membrane Distillation (MD) Lab Cells offer a compact and representative setup for testing MD performance. Each unit uses the same membrane materials and netting as full scale industrial modules, ensuring that lab results translate reliably to real operational conditions. Key Technical Features • 250 cm² active membrane area ensuring accurate and repeatable measurements. • Available in Direct Contact MD (DCMD) and Air Gap MD (AGMD). • Counter current flow design for optimal thermal efficiency and performance. • Compact, robust construction suitable for diverse research environments. Value for Decision Makers R&D / Engineering • Enables realistic testing of various feed streams. • Supports evaluation of membrane performance, fouling and concentration limits. • Suitable for feasibility studies, process optimisation and low temperature waste heat integration. Finance / Procurement • Low investment entry point versus pilot installations. • Reduces financial risk with reliable, small scale performance data. • Strengthens business cases and funding proposals with validated results. Operations / Plant Management • Lab outcomes mirror operational behaviour due to identical membrane materials and flow setup. • Integrates easily with existing water and heat recovery systems. • Supports sustainability goals through efficient water reuse and resource management. Typical Application Areas • Seawater desalination for process or potable water. • Concentration of industrial wastewaters including food, chemical and maritime streams. • Mineral recovery and circular water solutions enhancing resource efficiency. Why RN Solutions? RN Solutions is a global leader in patented flat sheet MD modules designed for sustainable, energy efficient purification. The Lab Cells allow organisations to explore and validate MD technology at small scale with confidence in full scale performance.
Air - Liquid Gap Membrane Distillation 1m2
