Activeated sludge purification monoblock unit realized in  linear high density rotomoulded PE consisting of:
a equalization and pre-denitrification, whose job is to equalize the hydraulic load and pollutant load (homogenization of the waste) influential and allow reduction in the tributaries, the values ​​in its various oxidized forms of nitrogen, a compartment oxidation, where aerobic fermentation takes place, a sedimentation chamber, where is the separation and subsequent precipitation of the sludge. The unit is equipped with  inspectio nmanholes and  IN / OUT pipes opportunemente dimensioned equipped with a double lip gaskets.