What is sewer?
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What Does sewer Mean
The term sewer arose as the diminutive of alcantara . Alcantara is called, according to the dictionary of the Royal Spanish Academy ( RAE ), to the trunk-type box that, in a velvet loom, is used to store the fabric that is being worked.
The sewer notion, however, has nothing to do with looms. The concept refers to a sump or underground aqueduct that allows the collection of sewage or rain to transfer them through conduits .
The sewers collect rainwater.
History of the sewers
It is important to note that the etymology of sewer appears in the Spanish Arabic word alqánṭara , which refers to a “bridge” . The oldest culverts, in this framework, resembled a small bridge as they consisted of a barrel vault supported by two walls. In this way, a channel was created in the lower sector.
The oldest sewer system on record was found in Nippur , an ancient city of the Sumerian culture that is currently part of the territory of Iraq . From the remains found, it is estimated that these sewers were built around 3750 BC .
The sewers were created with the objective of promoting the evacuation of rainwater to avoid stagnation and flooding . As the populations of the localities began to grow, other needs appeared and thus the sewers began to evolve.
How do they work
The sewers integrate the sanitation systems and allow the evacuation of water . The sewer system is known as the set of sewers in a neighborhood or locality.
Today they usually consist of underground concrete conduits with ovoid or circular cross-section. Once the waters reach the sewer and enter through the sewer , they gather through branches and are diverted to the so-called collectors (or collector sewers ).
The set of sewers in an area is called sewer.
It is important to note that the operation of the sewers is produced by gravity . On specific occasions, and only for small sections, they consist of pipes that carry out their work by vacuum or pressure.
The sewer as it slashes
The idea of culvert can also be used to refer to a chop . It is an infrastructure work that is linked to drainage , although it has different characteristics from those mentioned above.
The culvert or cut serves to drain surface waters transversely. What it does is allow the waters to flow under a railroad track, a highway or other type of road creating a kind of bridge .
Places in Spain and Portugal
Alcantarilla is the name of a municipality that is located in the province of Murcia ( Spain ). In the area where it is located there were already populations in the 5th century BC.
At present, Alcantarilla has more than 42,000 inhabitants. The waterwheel known as Rueda de la Huerta or Rueda de Alcantarilla ; the Mansion of Terol ; the Convent of the Minimums ; the Church of Our Lady of the Assumption ; and the Hermitage of Nuestra Señora de la Salud are some of the best-known buildings in the region.
In Portugal , lastly, it is freguesia called Alcantarilla . Its population barely exceeds 2,000 inhabitants.