Not recommended without advanced treatment: Class A requires extremely high water quality upstream of the skid, as well as advanced disinfection (Coliphages, spores). Water at the wastewater treatment plant outlet requires complex (membrane) technologies that are costly to install and operate. To be reserved for very specific projects with strong sanitary constraints!

The right technical and economic compromise: Ideal for many uses with a good performance/cost ratio. Class B allows for safe reuse compliant with European requirements without requiring membrane treatment. The skid, placed at the wastewater treatment plant outlet, pumps directly from the compliant outlet water.

Reliable for non-sensitive uses: This quality covers standard needs (indirect irrigation, non-contact cleaning). It is compatible with most wastewater treatment plants equipped with secondary treatment followed by simple disinfection. The dosage of chemical disinfectant (Chlorine) allows for the storage of treated water downstream.

Economical solution for highly regulated uses: Class D is suitable for uses without direct contact (irrigation of industrial crops, roadways, etc.). Easily achieved, it is suitable for conventional wastewater treatment plants without significant additional investment.