Ultrapure water (UPW)

Ultrapure Water

High purity water by MPure™ electrodeionization system

Did you know?

The conductivity of ultrapure water can be up to 0,055 uS/cm at 25oC, also expressed as resistivity of 18,2 MΩ∙cm.

Ultrapure water

What

What is ultrapure water and high purity water

Ultrapure water (UPW) or high purity water (HPW) are terms describing water that has been purified at very strict specifications as close as possible to pure H2O by combining water purification component technologies.

Also, the ultrapure water has removed all the conductive components such as solid substances, salts, organic particles and dissolved gases. That is why the high purity water has very low conductivity which means it is high in resistivity.

Ultrapure water conductivity

Ultrapure water conductivity can be up to 0,055 uS/cm at 25oC, also expressed as resistivity of 18,2 MΩ∙cm.

Ultrapure 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.

Ultrapure water system by MPure™ electrodeionization

UPW

UPW production by MPure™ units

MEGA provides continuous electrodeionization solutions for ultrapure water production. The advanced MPure™ line of modules developed by MEGA, the experts in electroseparation, can be interconnected to provide high flow blocks. Modules have a robust aluminum enclosure. MPure™ modules produce high resistivity water with low silica levels consistently.

What is electrodeionization

Electrodeionization (EDI) is a deionization technology to produce high purity water. It typically operates after the pretreatment and the reverse osmosis process.

Main benefits of MEGA ultrapure water (UPW) system

Main benefits of MEGA ultrapure water (UPW) system

  • 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.
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Industrial applications of MEGA Ultrapure Water System

Industrial applications of MEGA Ultrapure Water System

Electrodeionization technology by MEGA helps many companies in various industries to reach ultrapure water with fewer costs and more benefits to the environment, for example:

  • power industry - boiler feed water,
  • rinse water for electronics and semiconductor industry,
  • industrial process water,
  • food and beverage industry,
  • pharmaceutical industry.
Advantages of electrodeionization (EDI) over conventional Mixed Bed technology

Advantages of electrodeionization (EDI) over conventional Mixed Bed technology

The capacity of the standard ion-exchange columns (cation, anion, mixed bed) is limited and IEX column requires frequent regeneration by acid and caustic. Electrodeionization 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 competitive costs. The main benefits of EDI are:

  • elimination of regeneration chemicals,
  • continuous operation = stable product water quality,
  • small footprint,
  • low capital and operating costs,
  • effective redundancy,
  • environment-friendly technology.

Products and services for Ultrapure Water production by MEGA

MEGA

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

MEGA provides separate EDI modules which vary from different amount of 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 500 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

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

MEGA Ultrapure Water system – 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)
Why to choose MEGA high purity water units (HPWU)

Why to choose MEGA high purity water units (HPWU)

  • Low-cost HPWU building – ports on both sides for simple interconnection, no frames for modules.
  • Each unit is factory assembled and tested to shorten installation time and minimize start-up costs.
  • Modularity and redundancy – cube-shaped modules offer different options of interconnection.
  • Easy maintenance – only one electrical connection, hydraulic connection with Victaulic couplings.
  • Low capital and operating costs (low stack costs and long lifetime, low replacement costs, cleaning frequency and energy consumption).
  • Reliability.
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Our ultrapure water projects

High purity water system in Energy Usti nad Labem

ENERGY AT ÚSTÍ NAD LABEM, CZECHIA

Rehabilitation and upgrade of process water treatment plant using UPW

MEGA has supplied High Purity Water Treatment EDI units as a part of a novel membrane-only water treatment solution. The facility in the company ENERGY in Ústí nad Labem, Czech Republic, needed an upgrade after decades of heavy-duty.

Ultrafiltration, reverse osmosis and EDI units were selected to process river water into ultrapure water. MPure™ EDI by MEGA has proven to be able to operate in demanding conditions with high CO2 level, cope with differences in input feed and steadily provide the heating facility with the ultrapure water with 16 MΩ resistivity. Contact us below to find out how a similar solution can help your business.

ENERGY highlights

UPW with 16 MΩ resistivity Process efficiency Operate with high CO2 levels
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Modernization of process water treatment plant using high purity water

Termozipa at Tocancipa, Colombia

Modernization of process water treatment plant using high purity water

MEGA has supplied continuous electrodeionization RALEX® HPWU as a part of a new process water treatment plant in the coal power plant TERMOZIPA in Colombia.

Due to current outdated and unsatisfactory solution of the process water treatment, which could no longer process the required water capacity, TERMOZIPA has decided to build up a completely new water treatment plant. MPure-EDI from MEGA was selected to achieve ultrapure water as a part of the pretreatment system along with ultrafiltration and reverse osmosis technology.

Thanks to MEGA UPW technology TERMOZIPA is ensured by the continuous quality of the ultrapure water with 18 MΩ resistivity.

TERMOZIPA highlights

UPW with 18 MΩ resistivity Stable product water quality Cost efficiency
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Request a free quotation for your Ultrapure water (UPW) project

Our experts are ready to find the best solution for your EDI ultrapure water project.

Please, fill out the form below. We will reach out to you as soon as possible.

Interested? Contact us.

Tomas Dornik

Tomas Dornik

Sales Manager

+420 601 342 268 tomas.dornik@mega.cz
Oleksandr Bornosus

Oleksandr Bornosus

Area Sales Manager, CEE and CIS

+420 722 459 239 oleksandr.bornosus@mega.cz
Zdenek Divisek

Zdenek Divisek

Area Sales Manager, Americas

+420 725 090 944 zdenek.divisek@mega.cz