Sludge treatment in wastewater treatment With our monitoring and control solutions for sewage sludge treatment, you can realize a more energy-efficient and reliable plant operation.

Maintenance personnel monitoring sludge treatment

The challenge


Purification tank and digestion tower

High energy costs and comprehensive safety requirements

The requirements of the variety of processes in sludge treatment, such as sludge digestion, thickening, and drying, are constantly being further developed. Efficiency, transparency, and process reliability in particular are top priorities in the sewage sludge drying process. Optimum sludge management requires systems specifically intended for a more efficient process flow as well as safe digestion tower and sludge pump control.

Solution


Control cabinet for controlling an agitator
Digestion tower
Visualization of the processes in a return sludge pumping station
Control cabinet for controlling an agitator

Saving potentials of the sewage sludge plant can be identified by acquiring and storing energy data and analyzing the energy situation. Our current measuring devices are intended for this purpose, which are designed to collect the relevant measured values and transmit them to the control room. Information on the efficiency of the process is transmitted through common interfaces such as Modbus, PROFIBUS, and PROFINET.

Digestion tower

Reliable temperature and pressure monitoring is required for the optimum aerobic degradation of sewage sludge in the digestion tower. With measuring transducers with ATEX approval, measured values are transmitted directly to the programmable logic controller. Intrinsically safe I/O modules facilitate the efficient control of actuators. Sensors are easily integrated through protocol converters and the HART protocol.

Visualization of the processes in a return sludge pumping station

With ready-to-use software function blocks, the time and effort for controlling the frequency converters in screw conveyors and pumps in a return sludge pumping station is reduced. The plant can be visualized easily with the PLCnext Engineer software tool that is available free of charge. It includes ready-made visualization symbols for actuators such as motors, pumps, and ventilators.

To the Water Functions software solutions

Safety concept for centrifuges

Interactive image map: safety concept for centrifuges
Safety PLC for PROFIsafe networks
PROFIsafe devices are managed centrally by a higher-level safe controller. It is therefore possible to implement safe groups or safe individual shutdowns. In the event of an overspeed or the actuation of an emergency stop control device, the PROFIsafe controller triggers disconnection via the PROFIsafe devices. The centrifuge drives and any linked units, such as sludge pumps, are stopped.
More about safety-related controllers
Safety PLC for PROFIsafe networks
Motor manager
Detect critical load states early and protect the motor and high-quality system components at the same time.
Motor manager
Safety relay modules and sensors
Do you want to integrate safety-related systems to minimize malfunctions and downtimes? Using safety relay modules, you can reliably implement safety functions in machines and systems. They monitor signals from emergency stop buttons, light grids, and safety door switches, and initiate a safe state where necessary.
More about safety relay modules and sensors
Safety relay modules and sensors
Secure remote communication
We provide appropriate industrial routers and cybersecurity that will allow you to communicate securely with your machines and systems anywhere in the world.
More about industrial routers and cybersecurity
Secure remote communication

Your advantages

  • Reduced time and effort for the visualization of actuators by using PLCnext Engineer

  • Tailored reporting with flexible data acquisition and evaluation

  • Safety concepts for wastewater applications with integrated technology such as PROFIsafe

Contact


Fabian Pasimeni
Fabian Pasimeni
Global Industry Manager Urban Infrastructure
I would be happy to consult with you on your modernization or extension projects. Benefit from our long-standing experience and extensive range of services.

Products


Person using a tablet in front of a control cabinet

Still haven’t found the right product?

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