Energy recovery device for medium to large SWRO applications | Danfoss


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Energy recovery devices for high-pressure membrane processes

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Energy recovery device for medium to large SWRO applications

Energy recovery device for medium to large SWRO applications

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MPE 70: The first active ERD for medium and large SWRO plants

Integrating a low-voltage motor with an isobaric energy recovery device, the MPE 70 is the world’s first active ERD designed for medium and large SWRO plants.
 
By completely eliminating the risk of rotor overspin, the motor-controlled MPE 70 safely operates at variable and maximum flow rates and reduces membrane feed salinity increases due to mixing. 
 
In addition to unprecedented energy efficiency and reliability, the MPE 70 reduces the need for ERD redundancy in larger plants, prevents rotor stops due to biofouling, and facilitates smarter automation and better predictive maintenance. 
 
The MPE 70 builds on Danfoss’s proven technology and decades of energy-saving experience.

View the 3D model

 


                                    Animation
                                

See how the active isobaric pressure exchanger works with few moving parts and simple design.

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Fresh water at highest efficiency

The isobaric energy recovery technology offers the best and most efficient result

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Features and benefits

The world’s first active isobaric ERD for medium and large SWRO plants

Better energy efficiency, control & reliability

Eliminates the risk of rotor overspin

Safe operation at variable & maximum flow rates

Lower membrane feed salinity increases due to mixing

Less ERD redundancy required

No more rotor stops due to biofouling

Ready for smarter automation & better predictive maintenance

Easy installation in parallel-coupled trains

Proven technology, now at a larger scale


        Best-in-class energy efficiency
    

With no risk of overspin, the MPE 70 operates safely at maximum flow rates and reduces membrane feed salinity increases due to mixing. The resulting system-wide energy efficiency in medium and large SWRO plants is unparalleled by any other ERD.

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        Reliable operations
    

The low-voltage motor effectively eliminates rotor stops due to biofouling and enables integration of ERD control into the SWRO plant’s automation systems. Electrical data from the ERDs can now be analyzed for predictive maintenance.

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        Proven technology and support
    

Conceived in collaboration with customers and designed specifically for medium and large SWRO plants, the MPE 70 builds on decades of energy-saving experience and technology and is backed by Danfoss’s global sales, logistics, and customer service experts.

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Calculate the number of ERDs required for your application and discover how much energy you can save.

MPE 70 selection tool

 

The world’s most efficient high-pressure pumps

In addition to best-in-class ERDs, Danfoss also designs the world’s most efficient high-pressure pumps for SWRO.

High-pressure pumps for reverse osmosis applications

 

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