The hydrogen is dumped overboard; the oxygen is fed into the cabin for the crew to breathe. First, Astronaut wastewater is captured, such as urine, sweat, or even the moisture from their breath. Then impurities and contaminants are filtered out of the water. Unmanned cargo ships carry these oxygen tanks and deliver them to the space station. On the Space Station, carbon dioxide will be transformed by photosynthesis into oxygen and edible biomass such as proteins. An electric current is passed through it and it is separated into hydrogen and oxygen. The oxygen is released for the crew to breathe. TMRO Correspondent Lisa Stojanovski explains. Recycling in Space: Waste Handling in a Microgravity Environment Challenge The Oxygen Generation System on the International Space Station is broken! But ECLSS creates oxygen from water by a process called electrolysis. After that water is cleaned up it is electrolysed. ECLSS uses an electrical current to break many molecules of H2O (two hydrogen atoms and one oxygen atom) into hydrogen gas (H2) and oxygen gas (O2). They didn't recycle oxygen, but they had to keep it clean. Electrolysis of water (H2O) is the main method to generate oxygen aboard the ISS. The oxygen is created from the water that comes from the air and from the washbasins and from the loos. How is water recycling achieved onboard the International Space Station? ESA astronaut Alexander Gerst is responsible for unloading all the cargo from ESA’s Automated Transfer Vehicle (ATV) Georges Lemaître to the International Space … NASA plans on … Water is lost by the Space Station in several ways: the water recycling systems produce a small amount of unusable brine; the oxygen-generating system consumes water; air that's lost in the air locks takes humidity with it; and the CO2 removal systems leach some water out of the air, to name a few. Pressurized oxygen tanks provide a backup to the main method of synthesizing breathable oxygen (i.e., electrolysis). Closing the Loop: Recycling Water and Air in Space The “Out of This World” Oxygen/Carbon Dioxide Cycle: The following model illustrates how water, hydrogen, oxygen, and carbon dioxide can be utilized to supply crew members in space with vitally needed oxygen and water.

These tanks are stored in the space station and used whenever necessary. That’s especially important for long-duration deep space missions, since resupplying oxygen is a logistical nightmare that far away, to say the least.

Recycling in Space Helps Earth: Besides recycling in space, NASA recycles on Earth. Though a routine process on Earth, we must understand how it … There is an entire closed-loop system onboard the ISS dedicated to water. Notice that, unlike traditional CO 2 / O 2 exchange diagrams, Water is split into oxygen (O2) and hydrogen (H2).