Dosing systems


An important feature of membrane systems is that they generally operate without chemicals. However, the use of chemicals cannot be avoided entirely, because either they are indispensable for cleaning purposes or plant parts and components can be only protected in this way.

Chemicals are generally added using special dosing units to allow highly accurate control of the necessary and ideal amount of chemical substances.

The following options are some examples of dosing units.

  • Flocculation dosage for improving the filtration effect in case of ultrafine particles and suspended solids
  • Dosing units for ph-value regulation
  • Acid- and caustic dosages for the cleaning membrane systems
  • Stabilisation of hardness for the protection against scaling to prevent precipitates from forming on the membrane surface

Based on the water analysis and the materials in use, the chemical dosages will be intentionally selected to ensure a safe and economic operation of the entire system.