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Boiler feed water

Treatment of boiler water for industrial use by continuous electrodeionization EDI MEGA

Did you know?

MPure™ EDI technology delivers high purity water continuously with no regeneration needs.

Treatment of Boiler Water

What is boiler feed water

Boiler feed water is an essential part of boiler, steam generating device for power and heat production.

During the steam production, dissolved solids become concentrated in water remaining at the bottom of the boiler and form sediments inside the boiler. This leads to reducing the efficiency of the boiler. Therefore the treatment of boiler feed water is an important part of operating and maintaining a boiler system.

Boiler water pH

At a resistivity of 18,2 MΩ∙cm, the water has a pH of 7,0. At resistivity of 5 MΩ∙cm, the pH is in the range of 6,3 – 7,8.

Main benefits of MEGA ultrapure water (UPW) system

MPure™ EDI - cost-effective solution for treatment of boiler water

The novel MPure™ EDI modules are able to produce high resistivity water with low silica levels, making it attractive for various applications, including boiler feed water production.

Industrial application modules capable of reaching 18,2 MΩ∙cm product water resistivity.
MPure™ line of modules covers flow rates from 0,8 m³/h to 15 m³/h within one installed module.
Cost reduction by integrating modules into ultrapure water systems – RALEX® HPWU.
Suitable for high flow rate systems.
Small footprint – suitable for operation inside containers.
Easy maintenance.
Modularity and redundancy – cube-shaped modules offer different options of interconnection.
Option for direct discharge of electrode stream.

Ask our experts for help with your project

Mixed Bed vs EDI

UF permeate processing by MEGA Electrodialysis

Advantages of Electrodeionization (EDI) over conventional Mixed Bed (IX) technology

Continuous operation

Chemical-free process

Generate savings

Conventionally, Mixed Bed (MB) is the final step necessary to produce high purity water. In MB systems the cation and anion resins are regenerated using acid and caustic. EDI operates without regeneration chemicals. The elimination of bulk chemical storage and neutralization systems reduces the footprint of the water treatment system. High purity water is produced continuously at a competitive cost.

Would you like to know more about the benefits of using EDI in treatment of Boiler Water?

Contact our specialist

Would you like to know more about the benefits of using EDI in treatment of Boiler Water?

Contact our specialist

MPure™ EDI modules - cost-effective solution for treatment of boiler water

Eliminates harsh treatment chemicals
Green Technology
Bulk chemical storage not required
Safety Considerations.
Eliminates need for regeneration
Continuous operation; improved quality
Simple to operate
Regeneration system not required
Lower operating cost
Modular equipment, scalable
Smaller footprint, could be made mobile

MPure EDI from MEGA Best EDI module for Power and Heat Industry

MEGA UPW modules MPure™36, MPure™12, MPure™6

MEGA provides separate EDI modules which vary from different amount of a number of cell pairs. The MPure™ module produces 16 to 18 MΩ·cm product water quality at very high recovery. These modules are designed to replace mixed bed ion exchange at flow rates from 0,8 to 135 m³/h (3,7 to 2000 gpm) and beyond.

The advanced MPur™ stacks continuously produce high-resistivity water with low silica levels. Stacks can be interconnected to provide high-flow blocks. The robust design prevents both internal and external leaks. Exhaustive factory testing of each stack guarantees you will receive the stack in optimal condition, ready to plug in.

MEGA UPW modules specifications

	MPure™36	MPure™12	MPure™6
Number of cell pairs	36	12	6
Dimensions (W×H×D mm)	582×802×697	584×811×335	584×811×251
Flow maximum (m³/h)	15	5	2,5
Flow minimum (m³/h)	5	1,67	0,83
Recovery	< 97,4 %	< 96,2 %	< 94,3 %
Current	< 16 A	< 16 A	< 16 A
Voltage	< 300 V	< 100 V	< 50 V
Product water quality	> 16 MΩ·cm	> 16 MΩ·cm	> 16 MΩ·cm

Download the UPW modules datasheet (PDF)

MEGA Ultrapure Water system – RALEX® HPWU

Boiler feed water production by MEGA RALEX® HPWU

MEGA continuous electrodeionization system HPWU is a simple and cost-effective solution based on the range of pre-engineered HPWU systems with MPure™ EDI. Stacks cover flow rates from 5 m³/h to 135 m³/h

Dimensions (L×W×H mm): 2 400 × 1 300 × 1 600 (one MPure™36 stack)
Dimensions (L×W×H mm): 4 100 × 1 300 × 1 600 (three MPure™36 stacks)
Dimensions (L×W×H mm): 4 800 × 1 500 × 2 600 (nine MPure™36 stacks)

Download the HPWU systems datasheet (PDF)