Water In Space Station : NASA Astronauts Restore 98 Percent Water From Urine And Sweat On International Space Station
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According to the news of Space.com, each astronaut on the space station needs one gallon of water per day for drinking, cooking and cleaning. Astronauts used systems that are part of ECLSS. ECLSS stands for Environment Control and Life Support Systems which aims to recycle things like food, air and water for further use in space.
water extracted from the moisture of breath and sweat
The hardware that makes up the ECLSS includes a water recovery system that collects wastewater and sends it to a water processor assembly (WPS) that produces potable water. An advanced dehumidifier is used to capture the moisture released from the cabin air by the cabin crew’s breath and perspiration. Another system, the urine processor assembly (UPA), uses vacuum distillation to remove water from urine.
98 percent clean water found in urine
Brine is produced as a by-product of this process, from which a brine processor assembly (BPA) is added to the UPA to remove the wastewater. Christopher Brown, part of the Johnson Space Center team, said BPA increased the amount of clean water removed from urine from 94 percent to 98 percent, the highest ever. This method of restoring potable water could help in long space missions like Mars.
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