Sep 18, 2026
MVR Evaporator Technology for Wastewater Concentration
Mechanical vapor recompression evaporators explained: energy-efficient wastewater concentration for ZLD, brine treatment, and high-salinity industrial effluent.
How MVR Evaporation Works
A mechanical vapor recompression evaporator boils wastewater and recompresses the vapor with a compressor. The compressed vapor condenses on the heating side, releasing the latent heat back into the boiling process. The result: evaporation with a fraction of the steam energy of conventional systems.
Why MVR Beats Multi-Effect Evaporation
Multi-effect evaporators use steam across several stages. MVR replaces most of that steam with electricity driving a compressor. Where electricity is available and steam is not, MVR operating costs are typically 50-70% lower per ton of evaporated water.
Applications
MVR evaporators concentrate RO brine in ZLD plants, reduce the volume of high-salinity effluent, and recover distillate for reuse. They are applied in chemical, power, mining, and textile industries.
Design Considerations
Boiling point elevation of the feed determines compressor selection and energy use. Scaling salts such as calcium sulfate and silica require pretreatment or evaporator designs that tolerate scaling. Material selection - titanium or duplex stainless steel - follows the chloride content of the brine.
Get a Process Proposal
Provide your feed analysis and volume reduction target to receive an MVR evaporation proposal with energy consumption estimates.