Water treatment and use of greywater

The water treatment has acquired a high priority worldwide. Thereby, the focus is on the decentralized, multiple use of water. In doing so, more than 50% of water consumption can be saved. A number of water sources can be made available around the world regardless of climatic conditions around the world. Thus, slightly contaminated water can be treated by using water recycling systems for reutilization as process water or industrial waste water. The obtained clear water is perfectly hygienic and can be used in a number of ways in various areas of applications.

Greywater is defined as faecal-free, less contaminated sewage water as per European standard 12056-1. It is accumulated while showering, bathing or washing hands and also with use of the washing machine. 

Water resources:

  • Greywater from houses
  • Surface water
  • Ground water
  • Runoff water from wastewater treatment plants
  • Industrial wastewater


Possible rainwater uses:

  • Flushing toilet
  • Irrigation
  • Cleaning purposes
  • Washing machine
  • Cooling
  • Industrial use


Advantage for the user:

  • Saving on increasing costs of drinking water and sewage water
  • Regular harvest
  • Worldwide use independent of climatic conditions
  • Requires less storage capacity
  • Independence of the water supplier


Advantages for the municipality:

  • Reduction of expenditure for flood control measures
  • Flood prevention
  • Reduction in costs of sewer construction, sewer rehabilitation and sewage treatment
  • Saving potential in development costs of new housing estates
  • Improvement of local groundwater storage and thereby improvement in provision of drinking water


Application of the INTEWA System:

  • Single family homes
  • Public projects
  • Hotels
  • Camping grounds
  • Business enterprises
  • Industrial facilities

To top

Frau unter der Dusche

The possibility to save drinking water has enhanced strongly the last years.

» mehr

A rainwater filter cleaning itself by the principle of the hydraulic jump.

» mehr

The DRAINMAX tunnel infiltration system: The only plastic trench with flushable  ground.

» mehr

The optimized water pump station for rainwater and greywater utilization in every planned construction.

» mehr


Tel. +352 (0)2695 811 1

E-Mail: info[at]lu.intewa.net


Co­py­right © 2017 • IN­TE­WA Luxembourg