2020 | Building Peace through Heritage
INTERNATIONAL SHOWCASE
Cuoiodepur
Abstract: The company was created to manage a consortial wastewater treatment plant where
the effluents of about 100 tanneries are treated. Cuoiodepur is located in the municipality of San
Miniato in the middle of Tuscany and treats vegetable tanning wastewater from the tanneries
located in the industrial area of Ponte ad Egola, but also treats the municipal wastewater of
the area surrounding San Romano, San Donato, San Miniato Basso and Ponte a Egola. The
sole leather and different tanned light leathers are typically manufactures of this area and
the industrial wastewater is characterized by a very high organic load with a large amount of
synthetic and natural tannins. The size of the plant is significant from the point of view of both
organic load and the influent flow (850,000 inhabitants equivalent (I.E.), 130 g COD I.E. d-1). In
2018, Cuoiodepur treated 1.5 million m3 year-1 of tannery wastewater and 1.4 million m3 year-1
of domestic wastewater.
Keywords: wastewater, treatment, organic, industrial
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