The wastewater generation by the food processing industry in Spain has seen several fluctuations over the years. In 2013, the volume stood at 122.5 million cubic meters, decreasing marginally each year until 2014, when it was 120.1 million cubic meters. From 2015 to 2018, volumes grew, peaking at 135.2 million cubic meters in 2018. However, in subsequent years, there was a decline and stabilization around 129.6 million cubic meters from 2022 onwards. In 2023, the volume was still 129.6 million cubic meters.
The year-on-year variations highlight a cyclical trend. For instance, in the early years (2013-2014), there was a decline of approximately 1.76% and 1.96%, respectively. Later, from 2015 through 2018, increases of 4.25%, 2.64%, 2.72%, and 2.42%, respectively, were observed. This was followed by a decline in 2019 and 2020, with slight stabilization afterward. The CAGR for the longer term has generally been negative, standing at -0.84% over the last five years up to 2023.
Forecasts from 2024 to 2028 predict a stable volume of 129.6 million cubic meters, with no expected growth or decline, indicating a forecasted 5-year CAGR of 0%. This consistent stabilization in future forecast indicates efficient management and a possible plateau in industry wastewater generation.
Key future trends to watch for include advancements in wastewater treatment technologies, regulatory changes, and modifications in the food-processing industry's practices which could significantly affect wastewater volumes. Circular economy principles and water recycling initiatives may further impact future wastewater generation trends.
