Water is a precious and increasingly scarce resource that is essential for life and the environment. The Themefolio "Water Treatment" focuses on companies that develop and provide processes, solutions and technologies for water treatment and recycling in order to return this important resource to the natural cycle. The solutions provided include industrial, municipal and agricultural applications. They make a significant contribution to protecting water resources and minimizing environmental pollution. They are pioneers in the development of sustainable practices and innovative systems for water treatment, desalination and recycling.