MVR High-salt Wastewater Treatment Evaporation System

MVR high-salt wastewater treatment is a process that utilizes mechanical vapor recompression technology to efficiently evaporate, concentrate and reduce the volume of high TDS (total dissolved solids) and high salinity wastewater.

By using a compressor to raise the temperature and pressure of the secondary steam generated during evaporation, and then returning it as a heat source to the evaporator, the MVR system can recycle the latent heat of the steam, significantly reducing energy consumption.

This technology is applicable to industries such as chemical engineering, pharmaceuticals, seawater desalination concentrated brine, electroplating, mining, and oil and gas, which produce high-salt, high-COD, and difficult-to-biodegrade wastewater.

During the treatment process, high-salt wastewater is concentrated and even crystallized. The clean condensate water can be reused in production or used as a supplementary water source, thereby achieving wastewater reduction, resource utilization, and moving towards the goal of zero discharge (ZLD), while also reducing the long-term operating costs and environmental risks of the enterprise.

Inquire

Working principle
Product Overview
Other project cases

What is MVR Wastewater Treatment Technology?

MVR is a high-efficiency evaporation and concentration technology that recovers the latent heat of secondary steam using a mechanical compressor.

In wastewater treatment, an MVR system works through the following steps:

Wastewater enters the evaporator and is heated to generate water vapor.
The vapor is compressed by a compressor, increasing its temperature and pressure.
The compressed vapor returns to the evaporator as a heat source to further heat the wastewater.
Through continuous circulation, wastewater is concentrated and clean condensate water is recovered efficiently.
Compared with traditional single-effect or multi-effect evaporation, MVR significantly reduces energy consumption and is suitable for projects that are sensitive to energy prices and operating costs.
Applicable Industries and Wastewater Types

Our MVR wastewater treatment technology is suitable for various high-salinity, high-COD and difficult wastewater types:

1.Desalination Brine
Volume reduction and deep concentration of RO brine
Improve overall water recovery and reduce high-salinity discharge

2. Chemical & Fine Chemical Wastewater
Saline and organic-laden wastewater (e.g. solvents, dye intermediates)
Volume reduction and resource recovery from high-COD, high-TDS wastewater

3.Electroplating & Surface Treatment Wastewater
Concentration of heavy-metal-bearing and high-salinity wastewater
Facilitates subsequent solidification, landfill or resource recovery

4.Pharmaceutical & Biochemical Wastewater
Organic, high-ammonia and high-salinity wastewater
Can be combined with biological and oxidation processes to meet discharge or reuse standards

5.Food, Beverage & Drinking Water
Concentration of cleaning wastewater and byproduct mother liquor
Achieve water reuse and wastewater reduction

6.Energy, Mining & Oil & Gas
Mining wastewater, produced water and injection water
Suitable for high-hardness, high-sulfate, high-chloride waters
Key Technical Advantages

1.Low Energy Consumption & Competitive OPEX

Latent heat is efficiently recovered via mechanical recompression
Overall energy consumption can be reduced by about 40–60% compared with conventional evaporation (depending on water quality and design)

2.High Water Recovery & Easy ZLD Implementation

With crystallization, water recovery rates above 95% are achievable
Greatly reduces wastewater discharge and environmental risk

3. Compact Footprint & Modular Design

MVR systems are compact and require limited footprint
Skid-mounted modular design is available for projects with limited space or fast deployment needs

4. Suitable for High Salinity, High Hardness & Complex Water

Capable of treating wastewater with TDS up to several hundred thousand mg/L
Anti-scaling design and proper process staging reduce scaling and corrosion risk

5. High Automation & Easy Operation

PLC + HMI automatic control with real-time monitoring
Optional remote monitoring and data logging for easier O&M

6. Optimized Life-Cycle Cost (CAPEX + OPEX)

With proper design, total life-cycle cost is competitive
Suitable for industrial users with long-term operation planning
Engineering-Proven Design & Optimization

1.High-Efficiency Heat Exchangers

Falling-film or forced-circulation evaporators selected based on water quality
Optimized flow velocity and heat transfer area to extend cleaning intervals

2.Anti-Scaling & CIP

Softening, antiscalants and pH control minimize scaling tendency
Equipped with CIP for online chemical cleaning to reduce downtime

3.Waste Heat Recovery & Energy Saving

Use existing process waste heat to preheat feed water
Compressors can be frequency-controlled to adapt to varying loads

4.Multi-Stage MVR & Hybrid Processes

Large-scale or ultra-high salinity projects can use multi-stage MVR or MVR + crystallizer
Combination with RO/NF to form hybrid “Membrane + MVR” processes for lower overall energy consumption

Technical parameters

Project	Parameter
Evaporation volume	3T/H
Evaporation process	MVR High-salt Wastewater Treatment Evaporation System
Handle materials	High-salt wastewater
Target concentration	Crystallize the salt
Main material	Titanium
Heat exchange form	Plate-type high-efficiency heat exchange
Operation mode	Continuous/automated operation

Other project cases

Four-effect evaporation system

Evaporation capacity: 30 T/HMaterial: Malt syrupFinal concentration: 80%Main material: SS316L

Learn More >

Domestic sewage treatment

Wastewater treatment of Thermal Power PlantIndustry: Environmental protection industryProcess: Coarse Grate + Fine Grate + Sedimentation Tank + Hydrolysis and Acidification Tank + A2/O + Advanced Treatment + Ultraviolet DisinfectionTreatment Capacity: 350 T/D

Learn More >

Freezing crystallization of potassium sulfate

Evaporation rate: 7 T/HCrystallizer: OSLO continuous freezing crystallizerMaterial: Sodium chloride

Learn More >

Methyl ethyl carbonate by transesterification

The process adopts reactive distillation + differential pressure thermal coupled distillation + extractive distillation, with an annual production capacity of 15,000 tons

Learn More >

Activated carbon adsorption device

Activated carbon adsorption devices applied in the field of air purification

Learn More >

Hainan Yongtuo Win-Win International Technology Co., Ltd.

Request A Free Quote/24H Services/Professional solutions

Welcome to contact us at any time. We will provide you with project plans, quotation requirements and cost assessment

sales@yoto2win.com
+86 18151021138
+8618151021138
Room 5091, Block A, Building 1, Phoenix Island, Sanya Central Business District, Tianya District, Sanya City, Hainan Province