W.W.T.P. at Piedralaves (Ávila)

The construction of a treatment plant with a biological process of activated sludge in prolonged aeration has been carried out.

Several outlet pipes have also been built in different areas of the municipality, as well as a collector to the wastewater treatment plant that receives the different outflows of Piedralaves.

The daily purification volume obtained is 1,985.04 m3 in summer and 721.83 m3 in winter. The main elements that make up the plant are as follows:

• Coarse well with a coarse screen of 80 mm of light and a compact roughing screen.
• Carousel type biological reactor with extended aeration process in two lines.
• Secondary decanter Ø 17m with radial bridge.
• Sludge line consisting of thickener followed by centrifugal dewatering and sludge conditioning with polyelectrolyte.