In 2023, the share of the French population connected to secondary wastewater treatment systems was 9.6%. Forecast data indicates a declining trend from 9.3% in 2024 to 8.2% in 2028. Year-on-year variations show a consistent decrease, with a slight average decline (CAGR) of about -3% per year over the five-year forecast period. The decreasing trend may reflect increased challenges in infrastructure development or shifts in policy priorities.

Future trends to watch for:

The impact of governmental policies and investments in upgrading wastewater treatment infrastructure.
Public awareness and demand for sustainable waste management solutions.
Technological advancements that may increase the efficiency of wastewater treatment systems.