Simple way to remove oil from water

Aug 05, 2005

Australian researchers say they have devised a simple tank-and-siphon system for removing oil from oily water to protect the environment.

The Extended Gravity Oil Water Separation concept is an improvement on the industry-standard American Petroleum Institute gravity separator that has been widely used for the last 60 years, say researchers at the University of New South Wales.

Although other systems work well with low effluent oil contents, they tend to be more energy intensive and incur higher costs, particularly for ongoing maintenance, says David Tolmie, who developed EGOWS with colleague Peter Stone from the University's Water Research Laboratory in the School of Civil and Environmental Engineering.

"EGOWS can remove oil down to below 10 parts per million, requires no power and is most useful in situations that are unattended," says Tolmie. "Most of the EGOWS installations to date in Australia have been in electricity substations to eliminate the small but potentially disastrous risk of a major spill of oil to the environment."

Copyright 2005 by United Press International

Explore further: NASA's Curiosity Mars rover studies rock-layer contact zone

Related Stories

Hubble view: Wolf-Rayet stars, intense and short-lived

30 minutes ago

This NASA/European Space Agency (ESA) Hubble Space Telescope picture shows a galaxy named SBS 1415+437 (also called SDSS CGB 12067.1), located about 45 million light-years from Earth. SBS 1415+437 is a Wolf-Rayet ...

Five properties of physics that affect your gas mileage

38 minutes ago

Physics is inescapable. It's everywhere, making your Frisbees fly, your toilets flush and your pasta water boil at a lower temperature at altitude. We've harnessed these forces, along with chemistry and engineering, ...

Crash test assesses plane emergency locator transmitters

56 minutes ago

The Cessna 172 airplane dangled 82 feet in the air – looking almost like it was coming in for a landing, except for the cables attaching it to a huge gantry at NASA's Langley Research Center in Hampton, ...

Recommended for you

Light echo helps researchers map out parts of galaxy

6 hours ago

Thousands of years before humans invented agriculture, a bright burst of X-rays left the dense neutron star Circinus X-1, located in the faint Southern constellation Circinus. A year and a half ago, those ...

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.