Unusual water recycling device is revealed

Dec 08, 2005
Water

British scientists have developed a rooftop vegetation recycling system that allows water to be used twice before being discarded.

The Green Roof Water Recycling System uses semi-aquatic plants to treat waste washing water, which can then be reused for activities such as flushing toilets.

The device is the brainchild of Chris Shirley-Smith, whose company, Water Works UK, is collaborating with Imperial College London and Cranfield University.

So-called grey water from washbasins, baths and showers is pumped up to the rooftop system, which consists of an inclined framework of interconnected horizontal troughs. Planted in the troughs are specially chosen plants.

Dissolved pollutants in the water are taken up by the plants' roots, leaving "green water," or non-drinkable water. The scientists say such water can then be dyed with a vegetable color to signal its non-potable status, or it can be used to flush toilets or water a garden.

The researchers note more than half the water used in homes and workplace does not need to be potable, yet it comes from the same water source that feeds kitchen faucets.

The researchers hope to market their invention commercially during the second half of 2006.

Copyright 2005 by United Press International

Explore further: Dish restores Turner channels to lineup

add to favorites email to friend print save as pdf

Related Stories

Tomorrow's degradable electronics

Nov 20, 2014

When the FM frequencies are removed in Norway in 2017, all old-fashioned radios will become obsolete, leaving the biggest collection of redundant electronics ever seen – a mountain of waste weighing something ...

Research spawns eco-friendly cement substitute

Nov 13, 2014

When he was a Ph.D. student in the University of Arizona Department of Soil, Water, and Environmental Science, David Stone won a student innovation competition with the invention of an eco-friendly substitute ...

Recommended for you

Form Devices team designs Point as a house sitter

13 hours ago

A Scandinavian team "with an international outlook" and good eye for electronics, software and design aims to reach success with what they characterize as "a softer take" on home security. Their device is ...

Man pleads guilty in New York cybercrime case

16 hours ago

A California man has pleaded guilty in New York City for his role marketing malware that federal authorities say infected more than a half-million computers worldwide.

Dish restores Turner channels to lineup

Nov 21, 2014

Turner Broadcasting channels such as Cartoon Network and CNN are back on the Dish network after being dropped from the satellite TV provider's lineup during contract talks.

LiquidPiston unveils quiet X Mini engine prototype

Nov 21, 2014

LiquidPiston has a new X Mini engine which is a small 70 cubic centimeter gasoline powered "prototype. This is a quiet, four-stroke engine with near-zero vibration. The company said it can bring improvements ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.