Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientists Optimize New Space Station Water System

13.11.2008
Two hundred and fifty miles above the Earth puts you a long way from the nearest kitchen tap. And at $10,000 a pint, the cost of shipping fresh water aboard the space shuttle is, well, astronomical.

So astronauts on the International Space Station have to recapture every possible drop. That includes water evaporated from showers, shaving, tooth brushing and hand washing, plus perspiration and water vapor that collects within the astronauts' space suits. They even transfer water from the fuel cells that provide electric power to the space shuttle.

Until now, however, NASA has not attempted to tap one major potential source of water: urine. That will soon change with the deployment of the new Water Recovery System. It departs Friday, Nov. 14, from the Kennedy Space Center on the Space Shuttle Endeavor.

The Water Recovery System, made possible in part by researchers at Michigan Technological University, can transform ordinary pee into water so pure it rivals the cleanest on Earth.

David Hand was the lead researcher on the project, which ran from 1993 to 1997 at Tech. It was a memorable time. "We received jars of sweat from NASA," he said. "Then we did experiments on the system, measured it at every step, evaluated it and made recommendations."

Under the new system, urine undergoes an initial distillation process and then joins the rest of the recovered fluids in the water processor. The processor filters out solids such as hair and lint and then sends the wastewater through a series of multifiltration beds, in which contaminants are removed through adsorption and ion exchange.

"What's left over in the water are a few non adsorbing organics and solvents, like nail polish remover, and they go into a reactor that breaks them all down to carbon dioxide, water and a few ions," said Hand, a professor of civil and environmental engineering.

After a final check for microbes, the water is again clean and ready to drink.

NASA's Layne Carter, the Water Recovery System lead engineer at Marshall Spaceflight Center in Huntsville, Ala., credits Hand and the rest of the Tech research team with making the system as good as it is. "Without a doubt, if it hadn't been for their modeling effort, we never would have been able to redesign the multifiltration beds and achieve that level of efficiency," Carter said. "They did a fantastic job."

Using mathematical models, the Tech researchers helped improve the overall design of the multifiltration beds, The redesigned beds have 30 percent more capacity, which means that NASA doesn't have to send about 60 pounds of additional supplies up to the space station annually. "That may seem trivial, but it saves NASA about $600,000 each year," Carter said.

For more information on the Water Recovery System, visithttp://www.nasa.gov/home/hqnews/2008/may/HQ_08119_ISS_Water_System.html

Contact: David Hand, 906-487-2777, dwhand@mtu.edu; Marcia Goodrich, writer, 906-487-2343, mtunews@mtu.edu

Jennifer Morcone | Newswise Science News
Further information:
http://www.nasa.gov
http://www.mtu.edu

More articles from Ecology, The Environment and Conservation:

nachricht Scientists team up on study to save endangered African penguins
16.11.2017 | Florida Atlantic University

nachricht Climate change: Urban trees are growing faster worldwide
13.11.2017 | Technische Universität München

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: A “cosmic snake” reveals the structure of remote galaxies

The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.

Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...

Im Focus: Visual intelligence is not the same as IQ

Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.

That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...

Im Focus: Novel Nano-CT device creates high-resolution 3D-X-rays of tiny velvet worm legs

Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.

During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....

Im Focus: Researchers Develop Data Bus for Quantum Computer

The quantum world is fragile; error correction codes are needed to protect the information stored in a quantum object from the deteriorating effects of noise. Quantum physicists in Innsbruck have developed a protocol to pass quantum information between differently encoded building blocks of a future quantum computer, such as processors and memories. Scientists may use this protocol in the future to build a data bus for quantum computers. The researchers have published their work in the journal Nature Communications.

Future quantum computers will be able to solve problems where conventional computers fail today. We are still far away from any large-scale implementation,...

Im Focus: Wrinkles give heat a jolt in pillared graphene

Rice University researchers test 3-D carbon nanostructures' thermal transport abilities

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Ecology Across Borders: International conference brings together 1,500 ecologists

15.11.2017 | Event News

Road into laboratory: Users discuss biaxial fatigue-testing for car and truck wheel

15.11.2017 | Event News

#Berlin5GWeek: The right network for Industry 4.0

30.10.2017 | Event News

 
Latest News

NASA detects solar flare pulses at Sun and Earth

17.11.2017 | Physics and Astronomy

NIST scientists discover how to switch liver cancer cell growth from 2-D to 3-D structures

17.11.2017 | Health and Medicine

The importance of biodiversity in forests could increase due to climate change

17.11.2017 | Studies and Analyses

VideoLinks
B2B-VideoLinks
More VideoLinks >>>