{"id":32364,"date":"2025-08-06T16:31:24","date_gmt":"2025-08-06T14:31:24","guid":{"rendered":"https:\/\/comprex.de\/?page_id=32364"},"modified":"2025-11-21T13:48:33","modified_gmt":"2025-11-21T12:48:33","slug":"sewage-disposal","status":"publish","type":"page","link":"https:\/\/comprex.de\/en\/sewage-disposal\/","title":{"rendered":"Solutions for wastewater disposal"},"content":{"rendered":"\t\t
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With impulses instead of chemicals\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Safe & efficient wastewater transport<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Comprex\u00ae removes deposits and residues from wastewater pressure pipes – for trouble-free operation, reduced energy costs and stable network performance.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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When deposits disrupt operations<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Typical challenges - and how we solve them\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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In areas with flat topography, wastewater pressure pipes transport wastewater from the pumping station to the sewage treatment plant. If deposits narrow the cross-section of the pipes and impair the flow, we ensure that the pipes remain efficient in the long term. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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01<\/span>
The problem<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Water-saving appliances and reduced consumption mean that wastewater remains in the pipes for longer, which leads to the formation of a screen. Sand and grit settle, damp toilet paper hardly decomposes.

The result: <\/strong>
lower flow rate, longer pumping times, pressure build-up, odor formation, corrosion due to biogenic sulfuric acid – and rising energy costs due to the reduced hydraulic performance.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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02<\/span>
The solution\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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With Comprex\u00ae technology, we clean wastewater pressure pipes effectively and in an environmentally friendly way – with pulses of compressed air and water that loosen and remove deposits at speeds of up to 70 km\/h.
Completely chemical-free, with minimal water consumption and usually during ongoing operation (with existing or accumulated water).<\/p>\n

Typical application:<\/strong>
Wastewater pressure pipes – targeted cleaning of individual sections, e.g. culverts.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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03<\/span>
The result<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Deposits are completely removed from pipes, bends and branches. The flow capacity is hydraulically restored. <\/p>\n

You increase the efficiency of your pipelines and reduce your energy costs at the same time. We keep downtimes to a minimum by cleaning during operation. <\/p>\n

With Comprex\u00ae cleaning, you create the ideal conditions for economical, sustainable and safe network operation.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Further information on our patented Comprex\u00ae process can be found here:<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Clear results. Clean lines. <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Comprex\u00ae improves the performance of the wastewater pipe<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The following table shows an example of cleaning at a drinking and waste water association and the flow rate (Q = volume flow) before and after cleaning – and thus the significant increase due to Comprex\u00ae cleaning(to the technical article<\/a>).<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Ready for the better solution?\n\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Benefit from the Comprex\u00ae advantages now!<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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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. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Your advantages with Comprex\u00ae\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Fast, thorough, resource-saving - without chemicals<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Cleaning time<\/b>
Up to 80% shorter*<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Cleaning effect<\/b>
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Water requirement<\/b>
Up to 90% less*<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Flow speed<\/b>
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*compared with conventional water flushing<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Planned, precise, effective\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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3 steps to a clean line\n\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Step 1<\/b> Analysis & planning<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We work with you to plan the optimum cleaning operation – individually tailored to your business, the condition of the pipes and your objectives. Wastewater pressure pipes can usually be cleaned “online” during operation with comprex. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Step 2<\/b> Preparation<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We take care of planning the cleaning sections, determining the entry and exit points and handling the entire logistics process for you.<\/p>\n

Our team of technicians will come to you with the appropriate equipment and remain on site for the duration of the project. You can find details of our self-sufficient trailers here<\/a>. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Step 3<\/b> Cleaning & commissioning<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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We clean with existing or accumulated wastewater. The water is slowly pumped into the pipe section to be cleaned and the air is dosed in pulses via alternating feed points(Comprex\u00ae<\/a>). Deposits are reliably removed – without chemicals and with minimal water consumption.<\/p>\n

Comprex\u00ae also cleans longer distances efficiently. Bends, branches and culverts are no obstacles in this process. In worksheet DWA-A 113 “Hydraulic dimensioning and performance verification of wastewater pressure systems”, the DWA regulations cite the pulse flushing method as a recognized option for cleaning pressure pipes.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Service with Comprex\u00ae<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Fast and safe cleaning for your systems<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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With our experienced team of technicians, we take on the complete cleaning of your wastewater pressure pipes – equipped with mobile Comprex\u00ae cleaning trailers and the appropriate equipment. Whether as a one-off or regularly as part of your maintenance concept: we reliably ensure clean pipes and safe operation. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Your options with Comprex\u00ae\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Flexible use - according to your needs\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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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.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Buy system<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Would you like to be independent and clean your pipe systems individually and regularly or integrate your own Comprex\u00ae cleaning system into your operational processes? No problem, whether mobile or stationary – we have the right system for you<\/a> and will train your staff. <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What makes our solution stand out:<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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With our Comprex\u00ae air-water impulse cleaning system, we provide an effective, sustainable, and resource-efficient cleaning solution.<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\n\t\t\t\t\t\t\tDo you have any questions? We\u2019re happy to help you find the right solution with Comprex\u00ae\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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+49 6341 3803-114\n\n<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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info@comprex.de<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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What our customers say\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Success stories from practice and partnership\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\"I wouldn't have believed it if I hadn't seen it myself at the Landau test center. In detailed trials cleaning our products in test pipelines, we reached up to 60% savings in cleaning time and up to 90% in water consumption.\" <\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\tBeiersdorf AG<\/span>Malcom Clement, Project Manager Cleaning Technologies<\/span><\/cite>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\"The MCU-300 from Hammann represents an important component of our innovative industrial hygiene concept. The system is used at Meffert AG both for flushing pipelines and for cleaning stand-alone systems.
\nThe cooperation with the colleagues from Hammann has worked very well since the beginning of the project. <\/p>\n

Project planning and commissioning were transparent and professional. All inquiries are processed promptly, and ideas and optimization requests are discussed openly with our technical department even months after commissioning.
\nThe MCU300 is intuitive for our employees to operate, can be used almost anywhere due to its dimensions, and works very reliably.\"<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\tMeffert AG Paint Works<\/span>Dr. Ronald Gro\u00dfe, Assistant to the Technical Executive Board<\/span><\/cite>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\"Before flushing the main pumping station, we had a pump runtime of almost 20 hours and a pumping capacity of 250 m\u00b3 of wastewater. As a result of the flushing action, we were able to determine that on some days we achieve a pumping capacity of 270 m\u00b3 of wastewater with a pump runtime of 15 hours. This clearly shows an improvement in the efficiency of our system.<\/x>We would also like to mention that thanks to comprex\u00ae we were able to remove around 14 m\u00b3 of residue from the pipe that had accumulated over the years. This cleaning has helped to improve the performance of our system and prevent future problems.\" <\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\tMunicipality of Jemgum<\/span>Mr. Jan\u00dfen, wastewater foreman pumping station <\/span><\/cite>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\"It is no longer possible to imagine our maintenance of injection molds without the cleaning technology from HAMMANN. The comprex\u00ae cleaning is without alternative in very many applications. Thank you for the excellent and pragmatic service.\"<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\tMEG Rossbach GmbH<\/span>Felix D\u00f6hler, Technical Manager<\/span><\/cite>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\"The Hammann company was commissioned to clean the stainless steel gas pipe using their Comprex process. Success was already evident when the cleaning was carried out, as the escaping rinse water was heavily contaminated.
\nAfter cleaning and recommissioning, the aforementioned pressure fluctuations did not occur again. It was not easy to create the necessary inlet and outlet to the gas pipeline. It is also problematic to take a gas pipeline out of service for a longer period of time when there is no redundancy. Nevertheless, the effort was worth it, as the cleaning has had the desired effect.\" <\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\tOwn municipal drainage company<\/span>Mr. Kormann, then an employee of the City of Langenhagen<\/span><\/cite>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\"Our initial skepticism that comprex could be too intense for our piping system was unfounded. The pulse pressure always remains below the network pressure and so we don't have to worry about pipe bursts due to excessive pressure. The pulse flushing process can reduce the deposits in our old network so significantly that maintenance is absolutely economically viable compared to replacement.\" <\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\tR\u00fcsselsheim municipal utilities<\/span>Roger Schneider, water master <\/span><\/cite>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t
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\"Our conclusion: The test of the comprex\u00ae unit can be rated as thoroughly positive. The cleaning effect can be seen as very good, in some cases even blockages could be loosened. Due to the rather simple operation, the unit could be operated without any problems after the short instruction. No problems were encountered during the test phase.<\/p>\n

At this point, we would like to thank you again for the test opportunity and the trust you have placed in us.\"<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

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\"We have had very good experiences with comprex and are very satisfied with the cooperation that has grown over the years. The Hammann GmbH technicians know our network, arrangements are quick and uncomplicated and the assignments are already a fixed part of our annual planning for network maintenance.\"<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t

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Comprex\u00ae in facts and figures <\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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comprex\u00ae in use and in focus\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Projects, specialist articles and practical results<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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culvert<\/a>Municipal<\/a><\/span><\/div>\n\t\t\t\t\t\t

\n\n\t\t\n\t\t\t\t\t\t\n\t\t\t\tCleaaning blocked culverts\t\t\t<\/a>\n\n\t\t\t\t<\/h4>\n\t\t\t\t\t\n\t\t\t\t\t<\/span>\n\t\t\n\t\t
\n\t\t\tComprex pulses can be fed through a PE pipe into blocked, water-filled culverts until they are deposited. \t\t<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\n\t\t\t\t\t\t\t\t\tLearn more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n
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Practical example<\/a>Waste water<\/a><\/span><\/div>\n\t\t\t\t\t\t

\n\n\t\t\n\t\t\t\t\t\t\n\t\t\t\tDischarge of coarse particles from pipes\t\t\t<\/a>\n\n\t\t\t\t<\/h4>\n\t\t\t\t\t\n\t\t\t\t\t<\/span>\n\t\t\n\t\t
\n\t\t\tDischarge of coarse particles from pipes\t\t<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\n\t\t\t\t\t\t\t\t\tLearn more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n
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Drainage pipes<\/a>Practical example<\/a><\/span><\/div>\n\t\t\t\t\t\t

\n\n\t\t\n\t\t\t\t\t\t\n\t\t\t\tCleaning drainage pipes\t\t\t<\/a>\n\n\t\t\t\t<\/h4>\n\t\t\t\t\t\n\t\t\t\t\t<\/span>\n\t\t\n\t\t
\n\t\t\tRemove PFAS from extinguishing systems\t\t<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\n\t\t\t\t\t\t\t\t\tLearn more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n
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Municipal<\/a>Practical example<\/a><\/span><\/div>\n\t\t\t\t\t\t

\n\n\t\t\n\t\t\t\t\t\t\n\t\t\t\tLarge sewage treatment plant\t\t\t<\/a>\n\n\t\t\t\t<\/h4>\n\t\t\t\t\t\n\t\t\t\t\t<\/span>\n\t\t\n\t\t
\n\t\t\tThe formation of deposits in sludge pipes led to an increased maintenance effort in plant operation. By using a stationary Comprex\u00ae unit, the time-consuming manual ...\t\t<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\n\t\t\t\t\t\t\t\t\tLearn more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\n
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Municipal<\/a>Practical example<\/a><\/span><\/div>\n\t\t\t\t\t\t

\n\n\t\t\n\t\t\t\t\t\t\n\t\t\t\tLarge-scale sewage treatment plant\t\t\t<\/a>\n\n\t\t\t\t<\/h4>\n\t\t\t\t\t\n\t\t\t\t\t<\/span>\n\t\t\n\t\t
\n\t\t\tCleaning of sludge pipes of the large sewage treatment plant of a European capital city\t\t<\/div>\n\n\t\t\t\t\t\n\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\n\t\t\t\t\t\t\t\t\tLearn more<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t\t\n\t<\/div>\n\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\n\t\t<\/div>\n\n\t\t\t\t\t\t<\/div>\n\t\t
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Versatile use in the water supply network\n\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Discover our other municipal applications<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Line section<\/th>\n Q Design [m\u00b3\/h]<\/th>Q before [m\u00b3\/h]<\/th>\n Q after [m\u00b3\/h]<\/th>\n Increase [m\u00b3\/h] <\/th>\n Cleaning success [%]\n <\/th>\n <\/tr>\n <\/thead>\n
Section A<\/td>\n 75-110<\/td>\n 75<\/td>\n 110<\/td>\n 35<\/td>\n 100<\/td>\n <\/tr>\n
Section B<\/td>\n 80-130<\/td>\n 80<\/td> \n 125<\/td>\n 45<\/td>\n 96<\/td>\n <\/tr>\n
Section C<\/td>\n 100-140<\/td> \n 90<\/td>\n 125<\/td>\n 35<\/td>\n 89<\/td>\n <\/tr>\n
Section D<\/td>\n 80-270<\/td> \n 180<\/td>\n 250<\/td>\n 70<\/td>\n 93<\/td>\n <\/tr>\n