Wastewater Treatment Pumps For All Applications

Given the pressures on the world’s water supply, the availability of clean water is the number one public health issue. A properly functioning wastewater treatment (WWT) system is key to preserving global water resources. A WWT system is composed of a set of processes aimed at cleaning up wastewater before it is returned to the natural environment or reused (clean water).

The objective of WWT is to reduce the impact of wastewater on the environment. Our dosing pumps contribute to the efficacy of water treatment methods and their performance at WWT installations.

Why Use Our Metering Pumps for Wastewater Treatment ?

• No electricity (energy saving).
• Easy dosage adjustment (in % increments).
• Accuracy and precision.
• Self-priming and efficient mixing.
• Optimal water and polymer consumption.
• Reduced cleaning and maintenance time.
• Low cost service and installation.
• Security: if the water flow stops, the polymer dosing stops automatically.

Traditional preparation of liquid polymer is carried out by means of integrated inline dosing systems based on an electric pump (peristaltic pump, diaphragm pump) which sometimes includes mixers and other options. Dosatron’s efficient and compact technology integrates reliable dosing & mixing regardless of water flow and pressure variations.

• Check the viscosity level indicated in the MSDS (Material Safety Data Sheet) of the polymer.
• Reduce the suction pipe length as much as possible to limit the viscosity effect on the dosage.
• A Dosatron Dynamic Mixer may be installed subsequent to the wastewater pump to improve mixing (Maxi water flow: 2.5 m3/h).
• A maturation tank may be installed subsequent to the metering pump especially for anionic polymers (see with your polymer supplier).
• Protect the polymer from temperature changes.
• For unstable polymers (particularly anionic polymers), an electric stirrer may be added into the liquid polymer drum.
• Adjust the water flow level and the polymer dosing rate on the dosing pump to optimize the polymer efficiency.

Shown in the picture above, our Polymer Unit 1 [PU1] dosing pump with a special self cleaning valve is recommended for high viscosity anionic/cationic polymers. This reduces the clogging risk and extends the time between pump cleaning.

Important! Be sure to check the type and viscosity of the polymer in the Chemical Properties Material Safety Data Sheet (MSDS).  Contact us if in doubt.

As shown above, our Polymer Unit 1 [PU1] dosing unit with a special self cleaning valve is recommended for high viscosity anionic/cationic polymers. This reduces the clogging risk and extends the time between pump cleaning.

Our metering pump is useful for this application to make a precise dilution of the polymer solution. This dilution allows for the separation of the solid from the liquid of the sludge, increasing the dryness of this sludge.

Our pump’s design will allow it to inject concentrated polymer and to mix it with the diluted water.

At the outlet, the water/polymer solution goes through the Dosatron Dynamic mixer in order to homogenize the solution. This allows for the separation of the liquid from the solid thanks to flocculation.

Once prepared, the sludge can be treated mechanically in order to extract the essential quantity of the water contained.

Our wastewater treatment pumps cans also meet your needs for the following applications:

• Cleaning of filter presses
• Odour treatment

For the above wastewater treatment plant processes, a specific wastewater dosing pump from the Dosatron Water Line range is required.