Reducing biofilm in process water pipes and installations

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Reducing biofilm in process water pipes and installations

In process water systems, biofilm, slime formation and microbiological build-up can occur on wet surfaces such as pipes, tanks, filters, buffer vessels and technical installation parts.

CWN assesses each installation to determine whether nano cavitation can contribute to more control over biofilm-sensitive zones, as an addition to existing filtration, flushing, cleaning, UV or oxidative treatment.

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Why biofilm in process water keeps returning

Process water is often stored, circulated, reused or guided through technical installations. This brings together water quality, temperature, organic load, stagnant zones, pipe material and flow.

Under favourable conditions, microorganisms can attach to wet surfaces and form biofilm there. This build-up can occur in pipes, buffer tanks, reservoirs, heat exchangers, filters, pump circuits and parts of the installation with less effective flow.

When conditions in the system remain the same, biofilm can return after cleaning or flushing. That is why it is important not only to address the visible problem, but also to look at the complete water circuit.

Nano-cavitatie in water

What CWN adds

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

  • More control over biofilm-sensitive zones in the process water system
  • Less recurring microbiological build-up
  • Support for existing filtration, UV, flushing or oxidative treatment
  • More stable water quality in circulating or reused water flows
  • Technical assessment within existing installations
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From recurring build-up to targeted control

Biofilm in process water requires more than periodic cleaning or flushing. CWN looks at the complete 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 build-up, more stable water quality and better control over biofilm-sensitive parts of your installation.

Discuss your water system

Frequently asked questions about biofilm in process water

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

Does CWN remove biofilm from pipes and installations?

CWN is used to make microbiological pressure and system instability easier to control. The impact on biofilm depends on system design, hydraulics, water load, positioning and measurement strategy. That is why we assess this per installation.

Does CWN replace cleaning, flushing or existing water treatment?

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

When is CWN relevant for biofilm problems in process water?

CWN is particularly relevant when biofilm or slime formation returns after cleaning, pipes become contaminated, water quality fluctuates or corrective treatment is needed more frequently.

Where is CWN installed in a process water installation?

That depends on the installation. Possible locations include pipes, bypasses, buffer tanks, reservoirs, pump circuits, return flows or zones where organic load, recirculation and microbiological pressure 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, biofilm-sensitive zones, flushing needs 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 process water installation? Based on system volume, flow rate, water load, existing water treatment and measurement data, we assess whether a pilot is technically relevant.

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