Navigation Links
Water quality in orbit
Date:9/13/2009

iments."

On the space station, "once per month they will check the water for iodine and silver," Siperko says. "That data will be downloaded and relayed back to Earth, to Johnson Space Center" in Texas.

"We have teleconferences with them, and they will transfer the data to us electronically for us to look at," she adds. "That way we can judge if the experiment is working correctly. If any unforeseen problems arise, then we can advise them as to what we think might be the problem and how to correct it."

Keeping It Clean in Orbit

The project began a decade ago, before Porter joined the Utah faculty, when NASA sought proposals for disinfectant or "biocide" monitors to check the safety of drinking water on manned spacecraft.

"You can't sterilize water well enough to keep things from growing in it," Porter says. "Nature happens."

NASA uses iodine as a disinfectant on U.S. spacecraft. The Russians use colloidal silver pure silver nanoparticles, some of which go into solution.

The problem for both iodine and silver is that microbes grow in the water if levels are too low. If levels are too high, iodine-treated water tastes bad and eventually might cause thyroid problems, and silver at excessive levels can turn the skin grayish blue.

Space station water now is sampled and returned to Earth for testing at intervals of months because "they don't have an acceptable onboard technique," Porter says.

He says the space station is a proving ground for technologies for longer manned flights to the moon and Mars even though those flights are unlikely anytime soon due to high costs and other priorities.

Water for astronauts is carried into orbit and also produced on the space station as a byproduct of hydrogen and oxygen reacting in fuel cells. Disinfectants or biocides are added during flight, but actual levels in drinking water cannot be tested until samples are brought ba
'/>"/>

Contact: Lee Siegel
leesiegel@ucomm.utahedu
801-581-8993
University of Utah
Source:Eurekalert  

Page: 1 2 3 4

Related biology news :

1. Freshwater supplies threatened in central Pacific
2. University of Oregon researcher finds that on waters surface, nitric acid is not so tough
3. Innovative civil engineering application promises cleaner waters
4. Safe water: simpler method for analyzing radium in water samples cuts testing time
5. Researchers find new taste in fruit flies: carbonated water
6. Low oxygen in coastal waters impairs fish reproduction
7. Extra gene copies were enough to make early humans mouths water
8. Acid rain has a disproportionate impact on coastal waters
9. HARDY rice: less water, more food
10. New microsensor measures volatile organic compounds in water and air on-site
11. Alternative methods proposed to detect pesticides and antibiotics in water and natural food
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Water quality in orbit
(Date:7/9/2014)... geographic ranges in which animals can be found, concern ... Does an increased range for a host mean new ... says a team of UC Santa Barbara scientists, including ... published in the Journal of Biogeography , Hechinger, ... opposite may happen: Hosts may actually lose their parasites ...
(Date:7/9/2014)... (July 9, 2014) Emerging fungal pathogens pose ... parasitic group, causing population declines of amphibians, bats, ... University of South Florida published in the prestigious ... acquire behavioral or immunological resistance to a deadly ... , "Acquired resistance is important because it ...
(Date:7/9/2014)... injuries have identified an immune marker that predicts ... infection. The study, led by clinician-scientists at Nationwide ... the journal Shock , is part of ... clinical implementation of quick-turnaround immune function tests and ... following critical illness or injury in pediatric patients. ...
Breaking Biology News(10 mins):Not at home on the range 2Not at home on the range 3Not at home on the range 4USF study: Amphibians can acquire resistance to deadly fungus 2Immune function predicts infection risk among child trauma patients 2Immune function predicts infection risk among child trauma patients 3
... stem cells, ability to regenerate damaged tissue could offer ... myopathy and muscular dystrophy, according to researchers from the ... procedure has been successfully used to regrow muscles in ... all tissue-based illnesses in humans such as in the ...
... young, apparently healthy athletes suddenly collapse, it can be due ... have now discovered a genetic modification that leads to cardiac ... can give zebrafish a heart condition. Since the fish have ... could be critical for humans as well. ...
... and Innovation in Global BiometricsGAITHERSBURG, Md., March 4 ... has been named the Biometrics Systems Integrator "Company ... the Corporation,s leadership in developing innovative biometrics solutions ... Sullivan based the award on a rigorous analysis ...
Cached Biology News:Stem cell breakthrough gives new hope to sufferers of muscle-wasting diseases 2Why 'lazy Susan' has a weak heart 2Lockheed Martin Named Biometrics 'Company of the Year' by Frost and Sullivan 2
(Date:1/14/2014)... 2014 Date: Friday, April 11, 2014 , ... Club, 1360 Almshouse Road, Warrington, Pa. , Details: ... dedicated to finding a cure for hepatitis B and improving ... its annual Crystal Ball on Friday, April 11 at Warrington ...
(Date:1/14/2014)... New York, NY (PRWEB) January 14, 2014 ... coverage of Alliqua, Inc. (OTCQB: ALQA). Alliqua is an ... products to serve the wound care market. , Free ... Alliqua was restructured with a seasoned management team and ...
(Date:1/14/2014)... 14, 2014  RXi Pharmaceuticals Corporation (OTCQX: RXII), a ... innovative therapies addressing major unmet medical needs using ... Notice of Allowance from the United States Patent ... compounds (sd-rxRNA®), for the treatment of fibrosis. The ...
(Date:1/14/2014)... 14, 2014 During the 1600’s through the ... “The Doctor’s Plague.” In this time period, doctors did not ... at times, to the death of vulnerable patients. In the ... that they may be unwittingly transmitting herpes viruses to their ...
Breaking Biology Technology:Hepatitis B Foundation to Host Annual Crystal Ball Gala 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 2EquitiesIQ Initiates Coverage of Alliqua, Inc. 3RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 2Study: Fatigued Medical Interns Infect Their Patients with Herpes Viruses; The CBCD Sees a Parallel with “The Doctor’s Plague” 3
... Dendreon Corporation (Nasdaq: DNDN ) today announced that management ... Healthcare Conference in New York City, NY on May 25, 2011 ... in Rancho Palos Verdes, CA on June 7, 2011 at 2:00 ... live and available for replay from Dendreon,s website, www.dendreon.com . ...
... BRISBANE, Calif., May 19, 2011 InterMune, Inc. (NASDAQ: ... of its 2011 Analyst Day presentations on Thursday, May ... in New York.  Presentations by InterMune,s executive management team ... and a comprehensive update of InterMune,s commercial and scientific ...
... CARY, N.C., May 19, 2011 ... its flexible 100% web-based Life Science Study Management ... successfully used globally by Leading European and USA ... eStudy,s on-line study design, management, communication, data collection ...
Cached Biology Technology:InterMune to Webcast 2011 Analyst Day Presentations 2Leading Ag Biotechnology Companies in Europe and America Save 50-80% of Field Study Management Time with eStudy 2Leading Ag Biotechnology Companies in Europe and America Save 50-80% of Field Study Management Time with eStudy 3
...
... An entire pressurized perfusion system ... in physiology, biophysics, electrochemistry, or general ... as little as 100 microliters of ... eight solutions in milliseconds from a ...
...
Request Info...
Biology Products: