A targeted approach to modernising sewage pumping stations
A sewage pumping station is typically expected to perform reliably for many years. However, even if the installation remains the same, operating conditions may shift significantly. New housing or development areas can change inflow volumes. Periods of heavy rainfall can create additional peak loads. Wet wipes and other solids can put pump systems under pressure. At the same time, energy use, condition monitoring and available staff resources are becoming increasingly important.
The pumping station may still be running – but is it still fit for today’s requirements?
A close look at the existing system can reveal where action is needed:
- Does the hydraulic design still meet current operating conditions?
- Where are unnecessary load peaks or inefficiencies occurring?
- What operating data is available?
- Where could modern pump, control or monitoring solutions make a real difference?
Modernisation does not necessarily mean a complete rebuild. Wilo takes a whole-system approach to the pumping station and analyses how pumps, hydraulics, drive technology, control systems and monitoring work together. This means upgrades can be made where they are technically most effective.
Modernisation begins with the existing system
No two pumping stations are alike. Age, hydraulic design, fluid, installation conditions, and operating conditions determine which measures are appropriate. That is why the first step is to assess the existing pumping station: from operating data and energy use to the failure history and hydraulic requirements.
On this basis, we help define suitable modernisation measures and integrate them into the existing infrastructure. The scope ranges from the targeted replacement of individual pumps or components to hydraulic adjustments, new control functions, and monitoring solutions. Even when replacing pumps that are no longer available or pumps from other manufacturers, we assess whether existing connections and system structures can continue to be used.
Assess the modernisation potential of your pumping station
Whether it is pump replacement, hydraulic adjustments, new control functions, or monitoring: Together, we analyse the existing system and determine which measures are appropriate for the specific operating conditions.
Assess modernisation potentialPotential starting points for modernising sewage pumping stations
The right modernisation measures depend on the specific challenges on site. Whether the issue is changing wastewater characteristics, fluctuating inflow volumes or limited visibility into system condition, there are different starting points for modernising existing pumping stations.
Pump technology
Reducing the risk of clogging and unplanned downtime
Wet wipes, hygiene products, fats and other solids can affect the reliable operation of sewage pumping stations. Lower volume flows can also encourage the build-up of deposits. This can increase the risk of clogging, unplanned call-outs and greater maintenance effort.
Depending on the application, pump technology, hydraulics and control functions can offer different ways to address these challenges:
- Hydraulically optimised pump technology to reduce the risk of clogging
- Different impeller designs to suit the fluid and duty point
- Options for abrasive fluids, including suitable coatings
- Functions for detecting critical operating conditions and supporting cleaning cycles
Sizing
Align energy use with actual demand
Over time, the original sizing of older pumps may no longer match actual operating conditions. If pumps operate outside their optimal duty point, this can lead to higher energy consumption.
Hydraulics matched to the duty point and demand-based operation help align pumping capacity with actual demand. Additional control functions can support adjustment of the duty point.
- Review the duty point and hydraulic sizing
- Adapt the pump system to actual operating conditions
- Consider demand-based control
- Use energy and operating data to assess system performance
Monitoring
Create transparency, plan maintenance more effectively
Unplanned on-site inspections and reactive service call-outs take up valuable staff resources, especially at decentralised pumping stations. Without continuous visibility into operating and condition data, irregularities may go unnoticed until they begin to affect operation.
Monitoring solutions enable relevant data to be collected and analysed in a structured way.
- Capture relevant operating and condition data
- Clear visualisation to support assessment of system condition
- Early identification of irregularities and maintenance needs
- Integration into existing systems
Control
Respond to changing inflow volumes
New housing developments, heavy rainfall events and other changes within the catchment area can change the demands placed on a pumping station. A pumping station originally sized for different conditions does not necessarily need to be fully replaced.
Depending on the system design, adjustable duty points and appropriate control functions can help model different load conditions.
- Consider current and expected inflow volumes
- Adjust duty points to changing conditions
- Use suitable control functions for different load conditions
- Assess available technical reserves and expansion options
Sewage pumping stations in real-world use
Buchbusch sewage pumping station, Pforzheim
In many places, sewage transport is facing increasing demands. As a result, pumping stations today must not only operate reliably, but also be easier to monitor and integrate into day-to-day operational processes.
At the Buchbusch pumping station in Pforzheim, Wilo pumps are used in connection with Nexos Intelligence. The solution helps support reliable operation, provides greater visibility into key operating conditions, and facilitates the digital connectivity of the pumping station. For operators, this can offer particular benefits in day-to-day operation, such as when monitoring, evaluating, and organising maintenance and service processes.
Service goes beyond modernisation
Modernisation does not end once new technology is in place. We continue to support ongoing operation by providing visibility into system status, helping operators plan maintenance more effectively and assessing energy use based on existing operating data.
More than just technology: developing infrastructure reliably
Sewage infrastructure typically operates where it goes largely unnoticed — yet it plays a vital role every day for cities, municipalities, businesses, and people. Pumping stations ensure that wastewater can be reliably transported, making them an important part of a functioning infrastructure.
Targeted further development of existing systems therefore involves more than simply replacing individual components. It is about preparing existing infrastructure for changing requirements, combining technical expertise with digital capabilities, and laying the groundwork for reliable operation well into the future.
FAQ | Frequently Asked Questions about sewage pumping stations
When should a sewage pumping station be modernised?
Modernisation may be advisable if operating conditions have changed, faults are occurring more frequently, pumps are no longer suitable for the current duty point, or relevant operating data is missing. Increasing inflow volumes, changes in wastewater characteristics, or components that are no longer available may also be reasons to conduct a technical review of the existing system.
Does modernising a pumping station mean replacing the entire system?
How can the risk of clogging in sewage pumping stations be reduced?
The most suitable measures depend on factors such as the fluid, the duty point and the hydraulic conditions. Possible approaches include impeller geometries and hydraulic designs suited to the application, coatings for abrasive fluids, and control functions that detect critical operating conditions and support cleaning cycles.
How can the energy use of a sewage pumping station be assessed?
Can existing sewage pumping stations be retrofitted with digital technology?
Can pumps from other manufacturers be replaced during modernisation?
What role does monitoring play at sewage pumping stations?
How do heavy rains and new developments affect sewage pumping stations?
Planning the next step together
Whether the focus is pump replacement, hydraulic adjustments, control or monitoring, we work with you to determine which modernisation measures are right for your pumping station.
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Our solutions support the entire water cycle – from water abstraction and storage to responsible use, treatment and return to the environment. This helps safeguard water quality and availability for current and future generations.
