How is wastewater treated?

How is wastewater treated?

How is wastewater treated?

The purification of waste consists of a treatment biological and involves four stages: the pre-treatmentthe treatment biological by activated sludge, clarification and treatment sludge.

Where does the wastewater go and how is it treated?

The wastewater is collected and transferred by a sewerage network to treatment stations, also called purification stations, with the aim of purifying them and eliminating the undesirable pollution thatthey contain.

How sewage?

The waste domestic They come from the various domestic uses of water and are, essentially, carriers of organic pollution: waters household items (bathrooms and kitchens) are generally loaded with detergents, grease, solvents, organic debris, etc.

What is the water level of the Venice lagoon?

Recent storms have covered 70% of the city with water, with water levels rising 156 centimeters. Venice lagoon map. Wikimedia

Why are the Venetian Islands sinking?

Of these 26 centimeters, about 12 are linked to the fact that the Venetian islands are sinking; this is due to the withdrawal of water from the aquifer, this geological formation located under the Venetian lagoon. Further measurements point out that the sea level is still rising by 2.4 mm per year.

Why are there floods in Venice?

The increase in flooding in Venice is explained by the combined effects of land subsidence, which is sinking the city, and climate change, which is causing a global rise in sea levels.

How did the Venetians fight the floods?

The Venetians also fought the floods by raising roadways and footbridges and by building dykes; but this strategy now damages the architecture of the city. In 2003, the Mose project was launched with the idea of ​​protecting Venice against worsening floods.