08 octubre 2010

La orina puede llegar a ser una inagotable fuente de energía.

 
Un grupo de científicos logró desarrollar una forma de transformar la orina en fuente de energía renovable.Un equipo de investigadores de la Universidad Heriot-Watt en Edimburgo, creó un sistema de generación de electricidad a partir de la urea, el mayor componente orgánico de la orina que ya se usa con frecuencia en la química moderna.
Y es que fue justamente a base de urea que el equipo desarrolló pilas de combustible. Este es un dispositivo electroquímico de conversión de energía similar a una batería, pero se diferencia de ellas en el hecho de que está diseñada para permitir el reabastecimiento continuo de los reactivos consumidos.
El doctor Shanwen Tao, quien inventó la tecnología, afirma que las pilas de combustible de urea son similares a las pilas de combustible de hidrógeno.
Su colega, el doctor Robert Goodfellow, indicó a la BBC que esta nueva tecnología es un paso significativo en el descubrimiento de nuevas fuentes de energía renovables, pero que el sistema aún debe ser desarrollado con más profundidad.
"La tecnología convierte la urea proveniente de la orina en agua, dióxido de carbono, nitrógeno y más importante: electricidad", dijo.
"Una de las aplicaciones para la electricidad es cuando no tienes acceso directo a fuentes de energía en casas rodantes o cuando estás de camping".
También para beber
Lo que esperamos en algún momento en el futuro es que (...) podamos purificarla a tal punto de hacerla apta para el consumo.
Robert Goodfellow, investigador
"Lo que esperamos en algún momento en el futuro es que cuando hayamos sacado toda la urea del líquido de la orina podamos purificarla a tal punto de hacerla apta para el consumo", agregó Goodfellow.
"En teoría tú podrías beber agua de tus propios desechos".
El punto aquí es persuadir a la gente a que beba agua proveniente de la orina.
Incluso la NASA tuvo que convencer a sus astronautas de que es seguro beber agua proveniente de la orina, un proceso que ya se usa en la Estación Espacial Internacional.
Pero además de la persuasión está el hecho de que es sumamente costoso en estos momentos no sólo purificar la orina para convertirla en agua potable, sino utilizar pilas de combustible a base de urea.
Esto sin nombrar otra gran cantidad de aplicaciones partiendo de la orina, como la extracción de proteínas que luego son utilizadas para producir medicamentos como el antidepresivo Prozac.Así que ya sabes que hacer verdad?... claro que si dejar un comentario  xD
Fuente:BBC

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