SaltMaker MVR & SaltMaker MSF

Mechanical vapour recompression (MVR) and multi-stage flash (MSF) evaporative crystallizers

Achieve true zero liquid discharge (ZLD) with forced circulation evaporative crystallizer options. SaltMaker MVR requires only electrical power to operate, while SaltMaker MSF operates from thermal energy, including waste heat sources as low as 80°C.

Forced Circulation Evaporators

You may already be recycling wastewater with membrane systems or producing a brine that needs crystallizing; a SaltMaker evaporator helps you to take the next step in wastewater management. In concentrating complex brines or achieving ZLD, many factors need to be considered but uptime and reliability most of all.


Saltworks delivers forced circulation evaporators that do not require expensive chemical pre-treatment and clean themselves while they operate. They achieve this by having evaporation occur in a flash vessel instead of on heat transfer surfaces and employing high shear brine flow through forced circulation heat exchangers and built-in self-cleaning controls. Our technical experts use the right materials to ensure against corrosion and build a long-lasting plant. 

Photo of the heat exchanger in a SaltMaker MVR plant
Photo of full-scale SaltMaker MVR plants packaged for shipment to a customer site

Limit Install Costs and Timelines

Our standard SaltMakers are delivered as factory-built pre-tested modular blocks based on a standardized supply chain. This offers owners a number of benefits:


  • Secure delivery times and quality: our production facility, engineering, supply chain, and quality control are all under one roof.
  • Rapid site installation of shippable ISO blocks that are quickly placed at site on footings, interconnected, and started-up.
  • Battle-tested: components and engineering that have been thoroughly field-tested with repeat installations.
  • Training and support: we provide onsite technicians to help you install, start-up, and train your team.

MVR Evaporators & Crystallizers

Mechanical vapour recompression (MVR) evaporators and crystallizers use a vapour compressor to evaporate vapour from brine and condense distilled water, recycling the heat of condensation. The vapour compressor provides a temperature rise across the heat exchange. MVRs offer two primary advantages: they only require power to operate (so there is no need for a gas line connection or heat) and are compact.


In addition to treating wastewater, SaltMaker MVR is also an industry-leading lithium brine concentrator and lithium hydroxide crystallizer

Process flow diagram showing internal operations of a SaltMaker MVR evaporator
Process flow diagram showing internal operations of a SaltMaker MVR evaporator
Process flow diagram showing internal and external workings of a SaltMaker MSF evaporator
Process flow of a SaltMaker MSF evaporator

MSF Evaporators & Crystallizers

Multi-stage flash evaporators and crystallizers use thermal energy to evaporate vapour from a brine, lowering electrical energy consumption and removing the need for a vapour compressor. In a single effect, cooling water is employed to condense distilled water.


In multiple effects, the heat of condensation is recycled to evaporate brine from successive effects. Practically, a maximum of four forced circulation effects is common, while waste heat sources at 80°C may mean employing fewer effects.

Take the Next Step

All SaltMaker MVRs and MSF are built from the same core components, with robust engineering, quality control, and modular packages to lower your total cost of ownership.


We can engineer a SaltMaker into your total process flow and help you understand your options. Contact us to get started.

A 3D render of a SaltMaker MVR evaporator

Related Resources

Photo of a full-scale SaltMaker ChilledCrys skid

Lithium & Nickel Crystallizers for the EV Battery Industry

Saltworks has shipped two SaltMaker MVR crystallizers and a SaltMaker ChilledCrys to the electric vehicle (EV) battery industry. These full-scale systems will play an essential role in the production of lithium and nickel—two critical elements in EV batteries.