A sanitation assembly for sanitation of terminals of wastewater discharging pipes includes a sanitation chamber inside which, while in use, there is located a terminal to be sanitized. A fixed UV emission means is located inside the sanitation chamber near a bottom portion thereof and arranged to emit a UV radiation upwards, the fixed UV emission means including a first plurality of LEDs arranged along a first circumference and a second plurality of LEDs arranged along a second circumference inside said first circumference, the first and the second plurality of LEDs being arranged to emit upward a UV radiation having a wavelength ranging from 200 and 300 nm. A movable UV emission means is housed inside the sanitation chamber and includes a third plurality of LEDs designed to emit a radiation ranging from 200 and 300 nm and arranged along a circumference on a vertically moving ring-shaped structure which, while in use, is arranged to surround the terminal to be subject to sanitation. The LEDs of the third plurality of LEDs are designed to emit, in a converging manner, a UV radiation having the wavelength ranging from 200 to 300 nm.