With impulses instead of chemicals

Effective & sustainable wastewater treatment

Comprex® efficiently removes deposits in pipes throughout the entire wastewater treatment process.

When deposits jeopardize operation

Typical challenges - and how we solve them

Wastewater treatment plants require properly functioning pipelines. After all, these are the connecting lifelines between the various treatment steps in the process for treating wastewater and the sludge produced in the process. comprex enables simple and risk-free maintenance.

01
The problem

Every major wastewater treatment plant has hundreds of meters of piping to transport water and sludge through the various treatment stages. All wastewater treatment processes produce large quantities of sewage sludge.

In the primary sludge pipes, but also in excess sludge pipes, grease pipes, thick sludge pipes and centrate pipes, very sticky deposits form again and again during operation.

These narrow the cross-section and minimize the delivery capacity of the pumps. The result: complete clogging of the line and failure of units or cleaning stages.

02
The solution:

Pipes in sewage treatment plants can usually be cleaned with comprex without any problems. The necessary connections are usually already in place and impulses of air and water (service water) can be used to effectively remove deposits.

For particularly stubborn deposits or hard, crystalline consistency, adding rock salt to your pulse flush is another way to restore your plumbing.

Typical areas of application in wastewater treatment:

  • Sludge lines
  • Central water pipes
  • Service water systems
  • Digester gas lines
03
The result

comprex helps to avoid complete pipe blockages, damage or interruptions to operation. Early action enables a problem-free cleaning process and optimum cleaning results.

Your systems and pipes are clean again, operation runs smoothly and maintenance costs are significantly reduced.

With comprex, we contribute to condition-based maintenance. We help maintain or restore operational safety for your wastewater treatment process.

We rely on our proven Comprex® technology to clean your wastewater treatment. Here you will find further information on the process and its many possible applications:
Clear results. Clear lines.

How comprex sustainably improves the performance of your wastewater treatment system

comprex dissolves deposits in the pipes of your wastewater treatment plants quickly and easily. Our technology maintains or restores performance – without the risk of solid displacers getting stuck, as is the case when using pigs, for example.

Ready for the better solution?

Benefit from the Comprex® advantages now!

Whether drinking water and waste water in municipalities, industrial piping systems or water pipes in buildings – each area has its own requirements. We work with you to develop a tailor-made cleaning solution that works, saves resources and delivers lasting results.

Your advantages with Comprex®

Fast, thorough, resource-saving - without chemicals

Cleaning time
Up to 80% shorter
Cleaning effect
Up to 100x stronger
Water requirement
Up to 90% less
Flow speed
Up to 10x faster
Planned, precise, effective

Three steps to a clean line

Step 1 Analysis & planning

We work with you to plan the optimum cleaning operation – individually tailored to your business, the condition of the pipes and your objectives.

Pipes in sewage treatment plants can usually be cleaned quickly and easily with comprex. Storz-C flush connections are usually already in place at the required locations or nearby.

Step 2 Preparation

We plan the cleaning sections together with you, determine the entry and exit points and take care of all the logistics. Our team of technicians will come to you with the right equipment and stay on site for the duration of the project.

Details on our mobile cleaning systems and self-sufficient trailers for different nominal widths can be found here. We are also happy to implement permanently integrated solutions with you.

Step 3 Cleaning & commissioning

In addition to our comprex air, only your process water is used as a working medium. The water can easily be fed into sumps, basins or containers. As a rule, cleaning does not require any conversions or decommissioning. The pumping times and feed rates of the various clarification processes are taken into account. Cleaning is carried out using pulses of compressed air and water(Comprex®) introduced into the section to be cleaned.

Deposits are reliably removed – without chemicals and with minimal water consumption. Once the cleaning measures have been completed, we return the system to normal operation ready for use.

Your options with Comprex®
Flexible use - according to your needs
Cleaning service

Fast, professional and ready for use: you book our service and our experienced team of technicians will come to you with the necessary equipment and carry out the cleaning for you – whether as a one-off or regularly as part of your maintenance concept.

Buy system

Would you like to be independent and clean your pipe systems individually and regularly or integrate your own Comprex® cleaning system into your operational processes? No problem, whether mobile or stationary – we have the right system for you and will train your staff.

What makes our solution stand out:
With our Comprex® air-water impulse cleaning system, we provide an effective, sustainable, and resource-efficient cleaning solution.
Do you have any questions? We’re happy to help you find the right solution with Comprex®
What our customers say
Success stories from practice and partnership
Our operations in the municipal sector
Comprex® in facts and figures
Decades of experience
Operations per year
+
Countries
Comprex® in use
Cleaning projects and practical results
culvertMunicipal

Cleaaning blocked culverts

Comprex pulses can be fed through a PE pipe into blocked, water-filled culverts until they are deposited.
Learn more
A close-up image of a rusted pipe section with a buildup of fibrous material blocking the interior, indicative of the need for pig cleaning, lying on a grassy surface.
Practical exampleWaste water

Discharge of coarse particles from pipes

Discharge of coarse particles from pipes
Learn more
Drainage pipesPractical example

Cleaning drainage pipes

Remove PFAS from extinguishing systems
Learn more
Aerial view of a Kommunal water treatment facility featuring blue cylindrical tanks and circular settling ponds on grassy terrain, showcasing advanced Impulse Rohrreinigung technology.
MunicipalPractical example

Large sewage treatment plant

The formation of deposits in sludge pipes led to an increased maintenance effort in plant operation. By using a stationary Comprex® unit, the time-consuming manual ...
Learn more
MunicipalPractical example

Large-scale sewage treatment plant

Cleaning of sludge pipes of the large sewage treatment plant of a European capital city
Learn more
Versatile use in the supply network

Discover our other municipal applications

Water extraction
Water extraction
We clean:
Well pipes, raw water pipes, distribution in the waterworks
Learn more
Water distribution
Water distribution
We clean:
Drinking water pipes, transport pipes, elevated tank pipes, main water pipes, house connection pipes
Learn more
Wastewater disposal
Wastewater disposal
We clean:
Sewage pressure pipes
Learn more
Answers to the most important questions

Frequently asked questions about cleaning wastewater pressure pipes

How does cleaning with Comprex® work?

The process works with specifically controlled air-water pulses. These move through the pipe at high speed (up to 70 km/h) and generate strong shear and drag forces. This efficiently mobilizes and removes deposits, biofilms and solids – completely without chemicals and with minimal use of water.

Comprex® is suitable for a wide range of pressure pipes in wastewater technology – whether long transportation routes, pipes with large nominal diameters or sections with difficult hydraulics. Cleaning is individually tailored to the pipe length, material and conditions on site.

Depending on the system structure, cleaning during partial operation is also possible. Our team will check the technical and operational requirements with you in advance – including bypass solutions or temporary detour.

The duration depends on the length, dimensions and degree of soiling of the pipe. Smaller sections can often be cleaned in one day, but for larger projects we plan the process in stages – efficiently and with minimal interruption.

We document the discharge results visually and – if required – with additional measurement technology (e.g. turbidity data). This allows you to track and document the success of the measure.

In contrast to pure water flushing, Comprex® generates a significantly higher cleaning performance thanks to the impulse effect. This creates targeted forces that reliably remove even stubborn deposits and biofilms – effectively and in a resource-saving manner.

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