Since 2013, the urban wastewater treatment inflow in Spain has demonstrated initial fluctuations with values declining from 4.39 billion cubic meters in 2013 to 4.23 billion cubic meters in 2016. From there, it saw significant increases, peaking at 5.0 billion cubic meters in 2018. This growth was succeeded by slight decreases and stabilizations around 4.88 to 4.97 billion cubic meters from 2020 to 2022. In 2023, the value stood at 5.02 billion cubic meters, representing a 0.86% year-on-year increase. The CAGR over the last five years before 2023 was approximately 0.088%.
From 2024 onwards, forecasts predict a steady increase in the inflow, rising annually until it reaches 5.22 billion cubic meters in 2028, with a forecasted five-year CAGR of 0.61% and a five-year growth rate of 3.1%.
Future trends to watch for:
- Technological advancements in water treatment processes.
- Policy changes and regulatory impacts.
- Climate change influences on water availability and usage.
- Urbanization and population growth dynamics.
