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Subido el 21 de abril de 2008 por EducaMadrid

3616 visualizaciones

Video ganador del concurso Jóvenes Reporteros 2007-2008 en Cataluña.

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🎵 00:00:00
🎵 00:00:14
Water is a natural good, necessary for the planet and indispensable for the human species. 00:00:44
Man, apart from consuming a large amount of water, also pollutes it. 00:00:50
Every day we do small actions that contribute to this pollution. 00:00:55
Simple actions such as cleaning a brush, 00:01:00
washing the car or motorcycle, 00:01:05
washing dishes, 00:01:09
pulling the chain of the toilet, 00:01:13
washing clothes with detergent, 00:01:16
removing oils from the tap, 00:01:19
fill the water with substances impossible to regenerate naturally. 00:01:22
To minimize our impact we need to clean the water. 00:01:26
That's why we wanted to see how a cleaner works. 00:01:29
Hi, we are at the Estola Plains Cleaner. 00:01:33
Here they clean the water we pollute. 00:01:37
And now we will show you how it works. 00:01:39
This cleaner collects the water from the Estola Plains by gravity. 00:01:45
First of all, the water is conducted to the thick pole. 00:01:53
Here is a teleportation experiment from a large magnet 00:01:59
that is placed at the bottom of the pole and collects it with a pipe 00:02:03
that carries it in a container. 00:02:07
Then, the water moves to the two ends of the pipe. 00:02:13
It goes through a funnel that takes the smallest part 00:02:20
and puts it in another container. 00:02:23
Now, the water no longer has solid particles. 00:02:27
After this process, it is necessary to coat it with greasy materials. 00:02:31
This is done by the degreaser. 00:02:36
Then, by suspension, the grease accumulates on the surface. 00:02:39
Then, the water of the organic matter is cleaned. 00:02:47
This is done in the biological reactor. 00:02:51
The water stays more or less a day in this circular purification container. 00:02:56
The same bacteria that are inside the water, plus the oxygen that is injected, 00:03:01
make it clean. 00:03:05
The organic matter is decanted in the form of mud. 00:03:11
This is deposited in the mud sieve. 00:03:15
Then, it is dehydrated in the centrifuge 00:03:19
and, later, it is brought to the composting plant. 00:03:22
The rest of the water is already totally purified 00:03:36
and it is brought to the outlet of the treated water. 00:03:39
Here is where the whole process of cleaning the raw water ends. 00:03:49
And now, all this water goes to the river. 00:03:53
Behind us, we have the dehydrator. 00:03:58
And, further down, as you can see, the water that we have seen before comes out. 00:04:01
But remember, the important thing for the environment is not to make the water dirty. 00:04:10
Thank you for watching. 00:04:48
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Idioma/s:
cat
Idioma/s subtítulos:
en
Autor/es:
Alumnos del IES Castell D'Estela
Subido por:
EducaMadrid
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
3616
Fecha:
21 de abril de 2008 - 13:22
Visibilidad:
Público
Enlace Relacionado:
Alumnos del IES Castell D'Estela (Amer)
Duración:
04′ 51″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
448x336 píxeles
Tamaño:
24.75 MBytes

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