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Albufera Sur PictureThe term "sewage" comprises several types of waste water, ranging from household and services water to industrial and rain water, all collected in the municipal network.

We have designed and built more than 120 sewage treatment plants reaching an installed production of 6,000,000 m3/d.

With 40 years of experience, Cadagua is leader in the design, construction, operation and maintenance of waste water treatment plants. We are proud to count as our references the largest installations of the main cities in Spain such as Madrid, Barcelona, Bilbao, Seville etc as well as the biggest BOOT Sludge Thermal Drying installation in Europe (Sur, Madrid 300,000 Tn/year).