New brine processor increases water recycling on International Space Station

New brine processor increases water recycling on International Space Station
Brine Processor Meeting (BPA). The BPA’s dual-membrane bladder works to get better water from urine brine. Credit score: NASA/Robert Markowitz

NASA’s know-how demonstration, which launched on Northrop Grumman’s 15th business resupply mission, is designed to enhance water recycling on the Worldwide House Station and increase the effectivity of water recycling for the Artemis era.


The house station’s regenerative life help {hardware}, referred to as the Environmental Management and Life Help System, supplies and water for station crews. A brand new Brine Processor Meeting (BPA) will probably be tied into the system and permit extra water to be recovered from crew urine. This new piece of know-how in the end will assist construct higher methods that can be utilized on future and Mars missions and habitats.

ECLSS has enabled extra crew members to dwell aboard the station for longer expeditions with fewer useful resource shipments. The important thing elements of the regenerative ECLSS are the Water Restoration System and the Air Revitalization System.

The Air Revitalization System cleans the circulating cabin air by eradicating any contaminants, together with carbon dioxide, and produces oxygen and replaces any oxygen misplaced to airlock depressurization and experimental use.

The Water Restoration System supplies for astronaut use by recycling urine, cabin humidity condensate from crew sweat, respiration, and hygiene, and water recovered from the Air Revitalization System. The Urine Processor Meeting, a part of the Water Restoration System, was designed for 85% water restoration from crew urine and has been improved over the past 12 months to now get better 87% due to evaluation that confirmed there was nonetheless a margin towards calcium sulfate precipitation. “That distillate is mixed with the condensate and processed via the Water Processing Meeting (WPA), which recovers 100% of the water it processes,” says Layne Carter, Worldwide House Station Water Subsystem Supervisor at Marshall. “In consequence, our water restoration is about 93.5%.”

New brine processor increases water recycling on International Space Station
This diagram exhibits how the BPA matches into the water system. Credit score: NASA

Astronaut crews on will want ECLSS methods to get better nearer to 98% of the water they create alongside at first of their journeys.

“To go away low-Earth orbit and allow long-duration exploration removed from Earth, we have to shut the water loop,” says Caitlin Meyer, deputy supervisor for Superior Exploration Methods Life Help Methods at NASA’s Johnson House Middle in Houston. “Present urine water restoration methods make the most of distillation, which produces a . The brine processor will settle for that water-containing effluent and extract the remaining water.”

As soon as put in within the station’s Tranquility module, the BPA will pump brine from the UPA’s Superior Recycle Filter Tank Meeting right into a dual-membrane bladder. This bladder will move water vapor selectively into the cabin ambiance. As soon as within the ambiance, the water will probably be pulled from the air utilizing one other a part of the Water Restoration System, the condensing warmth exchanger. The warmth exchanger will ship that moisture again into the Water Processing Meeting, the place will probably be transformed again into ingesting water. The BPA’s used bladders containing the ensuing dried brine will probably be eliminated and saved, and ultimately discarded or returned to Earth for examine.

“With this new brine processor meeting, we’ll get better extra water from the urine brine produced by the Urine Processor, such that the general water restoration is nearer to 98%”, says Carter.

New brine processor increases water recycling on International Space Station
This diagram exhibits how the BPA matches into the water system. Credit score: NASA

“With the brand new BPA and the Common Waste Administration System launched on the prior Northrop Grumman resupply flight, the evolution of the ISS Water Restoration System into the Exploration Water Restoration System is sort of full,” stated Laura Shaw, Worldwide House Station Exploration ECLSS supervisor. “We could have some extra part upgrades to enhance reliability, however now have all of the assemblies in place. It is a massive milestone for the Exploration ECLSS.”

The brine processor in the end will assist allow long-duration crewed exploration missions and cut back the necessity for water resupply from Earth. The know-how demonstration’s capability to enhance the of water from urine brine additionally has potential use on Earth in and distant settings with restricted entry to .


Video: The sweet smell of life support


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New brine processor will increase water recycling on Worldwide House Station (2021, March 1)
retrieved 1 March 2021
from https://phys.org/information/2021-03-brine-processor-recycling-international-space-1.html

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