Drainage Definition - What it is, Meaning and Concept

Drainage is a term that comes from the French drainage and that refers to the action and effect of draining .This verb, to its instead, it means to ensure the exit of liquids or excessive humidity through pipes, pipes or ditches.

For engineering and urban planning, drainage is the interconnected pipe system that allows the eviction of storm or other liquids . sanitary drainage is one that carries liquid waste from homes or industries towards treatment plants, where a treatment is carried out so that the liquid can be poured into a water channel and the hydrological cycle continues to develop.

The first drainage systems date back several millennia before Christ, although these are designs on the ground, while nowadays underground networks are built.Recently in the 19th century, the French created the first system under the ground ; since then, more and more European cities in the center of the continent followed in their footsteps, taking advantage of the nearby rivers to drain the waters.

The storm drain , meanwhile, is the system that facilitates the transfer of rainwater so that it can be used.Other of its purposes, perhaps the most important, is to prevent cities from flooding.

A poor drainage system puts a city at risk; A clear example of the consequences of a poor design can be seen in the history of Hurricane Katrina, which hit the US state of New Orleans in August of 2005, since the flood that followed this catastrophe took many months to resolve.

Another danger posed by a drainage system is pollution; Since there is no strict control of the materials that are constantly discarded in the pipes, it is possible to pour toxic materials that silently threaten the entire population.On the other hand, it is important to note that when the volume of The waste is small, the risk is lower.In 1992, in the Mexican city of Guadalajara, a series of explosions took place covering more than eight kilometers, claiming many lives, due to a gasoline spill in the sewers.

It is worth mentioning that within the universe of myths and urban legends, sewers occupy a leading place; For decades, countless encounters have been reported with unknown species or that should not be in a city, which appeared through the houses or through the sewers.Without a doubt, the history of the great reptiles in the North American channels is most popular worldwide; but in many other places on the planet, chilling discoveries have been made.

As is often the case in these cases, it is very difficult to distinguish between true and fabricated stories to generate fear in citizens; In addition, not all people who describe a real experience can give details or concrete information about the creature they have seen.It has been shown, however, that the unusual mixture of organic matter that takes place in the sewers has given birth of species that are not found in other ecosystems, which confirms that it is absolutely possible to spot an uncommon living being in drainage systems; This does not rule out that many times people get confused, the product of suggestion, and notice life in a simple bundle of waste.

A geological drainage , on the other hand, is a network of superficial water and sediment transport that usually permeabilizes the upper layers of a land and then constitutes streams.

Finally, the notion of drainage is also used in medicine to refer to the utensil that allows extracting excess fluids, sometimes abnormal, from a wound, cavity or abscess.