Groundwater purification

Groundwater composition differs from location to location. The water can contain various natural substances such as iron, manganese, calcium or magnesium. If the concentrations are too high, the groundwater needs to be purified before it can be discharged to the surface water, sewage system or infiltrated into the soil. In this case filtration has to be applied to the standards of the receiving party or relevant authorities.

Our sophisticated purification systems consist of the following components:

  • Influent tank
  • Sand filter
  • Effluent tank
  • Flushing buffer
  • Control units
  • Process pumps

Purification capacity

Our installations have a purification capacity of 75 to 150m3 per hour. By connecting units, we can create capacities up to 1,200m3 per hour.


Our control units are fully automated systems equipped with PLC-computers.
This enables ensuring the switching of coupled units and the flushing of silos. The control units are equipped with hi-tech alarm systems. Via telemetry we can remotely control disruptions, errors and the level of chemicals.

Groundwater sampling

The purified water is sampled and analysed during the process, after which it can be discharged to the surface water, sewage or infiltrated into the soil. Sampling and analysis proceed according to the standards of the receiving and controlling authorities. We possess all the necessary equipment to monitor all parameters of the treated groundwater.

Straw filters

Through the usage of straw filters we can reduce the concentration of iron in the subtracted groundwater. The iron is brought in contact with oxygen by letting the water fall freely into a container. This process oxidizes the iron and forms flakes. These flakes attach themselves to the straw and remain in the filter container. Regular replacement is needed to maintain the adhesive capacity of the straw. The straw can purify 15m3 per hour with a concentration of 15mg iron per litre.