Reducing contamination of heat exchangers and membranes

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Reducing contamination of heat exchangers and membranes

Heat exchangers, membranes and technical water installations are sensitive to contamination, biofilm and microbiological build-up. This can affect heat transfer, pressure loss, flow, membrane load and maintenance frequency.

CWN assesses each installation to determine whether nano cavitation can contribute to a better controlled process water circuit, as an addition to existing filtration, flushing, cleaning, UV or oxidative treatment.

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Why contamination affects performance

In process water systems, water is often circulated along heat exchangers, membranes, filters, pumps and buffer tanks. During this circulation, organic load, temperature, minerals, microbiology and stagnant zones can come together.

When microorganisms attach to surfaces, biofilm can form. This layer can retain contamination and contribute to reduced flow, higher resistance, less efficient heat transfer or a heavier load on membranes.

Cleaning and flushing remain important, but when conditions in the water circuit remain the same, contamination can return over time.

Nano-cavitatie in water

What CWN adds

CWN applies nano cavitation as an additional physical treatment within the process water circuit. The application is tailored to system volume, flow rate, temperature, water load, existing treatment, installation design and critical zones.

  • More control over microbiological contamination in technical installations
  • Support for existing filtration, flushing or cleaning
  • Less recurring build-up around critical installation parts
  • More stable operation of circulating process water flows
  • Technical assessment of heat exchangers, membranes and bypasses
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From performance loss to targeted control

Contamination of heat exchangers and membranes requires more than periodic cleaning alone. CWN looks at the complete process water circuit and determines where additional physical treatment can technically contribute the most.

If CWN is suitable, we validate this with a pilot under practical operating conditions. This makes it visible whether nano cavitation contributes to less recurring contamination, more stable water quality and better control over critical installation parts.

Discuss your water system

Frequently asked questions about heat exchangers and membranes

Short answers to frequently asked questions about process water, microbiological contamination and the use of CWN Free and Tube.

Can CWN reduce contamination of heat exchangers?

CWN is used to make microbiological pressure and recurring build-up easier to control. The impact on heat exchangers depends on water load, temperature, flow, material use, positioning and measurement strategy.

Can CWN help with membrane fouling?

CWN can be relevant when microbiological build-up or contamination contributes to membrane load. The application is always assessed in relation to existing pre-filtration, flushing, pressure difference, water quality and maintenance strategy.

Does CWN replace cleaning or chemical treatment?

No. CWN is applied as an additional system technology. Cleaning, flushing, filtration, chemical treatment, UV or oxidative treatment can each retain their own function within water management.

Where is CWN installed for heat exchangers or membranes?

That depends on the installation. Possible locations include bypasses, supply lines, return flows, buffer tanks, pump circuits or zones before critical installation parts where microbiological load and contamination come together.

How do we demonstrate the impact of CWN?

We define together in advance which goals are important for your installation. During a pilot, we monitor these through measurements and practical observations, for example water quality, microbiological load, contamination, pressure loss, flushing needs, maintenance frequency and system stability. This makes the contribution of CWN visible within your own process water system.

Would you like to know whether CWN is suitable for your heat exchangers, membranes or process water installation? Based on system volume, flow rate, temperature, water load, existing treatment and measurement data, we assess whether a pilot is technically relevant.

Discuss your water system