Wastewater sludge treatment

Polymer solutions for sludge conditioning must be prepared by dilution on-site. Flocculants are costly, and to achieve stable dewatering results and maximize dewatering cycles, achieving the right polymer concentration is essential.

Our expertise in the field

Our proven portfolio of highly accurate electromagnetic flowmeters enables optimal polymer solution concentration and polymer consumption.

Because polymer dosage and sludge solids content can vary, maintaining the ideal polymer-to-solids ratio is not always ensured. Reliable monitoring of incoming sludge concentration is essential to achieve maximum sludge concentration and consistent, optimized dewatering results.

Our expertise in the field

Our inline measuring device for total solids measurement enhances sludge treatment in wastewater treatment plants using microwave transmission. Alternatively, combining a precise electromagnetic flowmeter with a suspended solids measurement ensures stable and good dewatered sludge results.

• Ensure efficient process optimization and fewer lab measurements with the inline measuring devices Teqwave MW 300 or Teqwave MW 500
• Achieve stable sludge dewatering results by combining our highly accurate electromagnetic flowmeter Proline Promag W 400 with the suspended solids sensor Turbimax CUS51D

The centrate water from the sludge dewatering process is heavily contaminated with ammonium nitrogen and may only be fed to the wastewater treatment system in dosed quantities. For this purpose, it is buffered in a retention basin. Since the resulting foam of the medium strongly impairs the process, monitoring is indispensable.

Our expertise in the field

Our Micropilot FMR60 radar meter continuously measures the level of the centrate water and can detect the foam formation with the help of the integrated Heartbeat Technology. In addition, the optimum dosing quantity of the defoamer and efficient pump control can be ensured.

Beneficial bacteria must be protected from critical conditions in the sludge digestion process.

Our expertise in the field

Our process instrumentation guarantees an environment where digester bacteria can flourish: maintained darkness, an absence of oxygen, constant temperature and a nearly neutral pH value.

• Ensure a constant temperature in the digester using our modular thermometer iTHERM ModuLine TM151
• pH value in the recycling sludge pipe using our digital combined pH/ORP sensor Memosens CPS16E
• Guarantee sufficient retention time and a harmonized load of the process using our hydrostatic level measurement Deltapilot FMB50

Biogas flow rate and methane concentration are critical parameters indicating process disturbances in anaerobic sludge digestion. However, environmental conditions such as significant flow dynamics, water-saturated biogas, changing methane concentration and extremely low pressure make measuring these parameters difficult for most devices.

Our expertise in the field

Our unique inline Proline Prosonic Flow B 200 ultrasonic flowmeter provides accurate, reliable measurement of wet biogas flow rates and methane concentration under fluctuating process conditions.