Extensive treatment in three works combining Imhoff pit, pre-denitrification, activated sludge and recirculation.

Extensive treatment in two works combining Imhoff pit, activated sludge, clarification and automatic recirculation.

Extensive treatment by anaerobic sedimentation, pre-denitrification, MBBR reactor and clarification.

Micro-station for irregular discharges with flow equalization, activated sludge, clarification and automatic recirculation.

Treatment by primary sedimentation, activated sludge, clarification and recirculation of sludge.

Complete biological treatment by aerobic oxidation and secondary sedimentation in a reinforced vertical tank.

Complete treatment by primary sedimentation and aerobic filtration with air blowing.

Station combining anaerobic percolator filter and activated sludge for advanced biological purification.

Activated sludge plant with aerobic digestion and integrated clarification for quality final discharge.

Secondary treatment by fixed biomass and air blowing, with effective degradation of organic matter.