WHAT IS WASTEWATER?
According to UNESCO (2017), 80% of wastewater returns to the ecosystem without being treated or reused, being one of the great challenges of water. Wastewater is any type of water whose quality is adversely affected by anthropogenic influence. This is water that has no immediate value for the purpose for which it was used or for the purpose for which it was produced due to its quality, quantity, or when it is available.
There are different types of wastewater depending on its origin. The main types of wastewater are:
1 . urban wastewater Domestic wastewater or its mixture with industrial wastewater or stormwater runoff.
2 . Domestic sewage Wastewater from residential and service areas, generated mainly by human metabolism and domestic activities.
3 . industrial wastewater All wastewater discharged from premises used for any commercial or industrial activity, other than domestic wastewater or stormwater runoff.
