What about the shit in the space station?

First of all, the China Space Station has a sanitary area with a space evacuation toilet. At present, only China, the United States and Russia have mastered the technology of evacuating toilets from space. The astronaut's hips sit on the toilet seat, the toilet cover opens automatically, and then a fixing belt is tied around his waist to prevent his body from floating. For safety reasons, there is also a handle on one side of the toilet.

The stool is sucked away by the air through the suction nozzle. There is a control lever below the handle, and twisting the control lever can adjust the air flow of the suction nozzle, so that the toilet lid can be automatically closed, and a vacuum is formed inside, so that the excrement can be quickly dried, and the solid part is regularly thrown out of the cabin and burned in the atmosphere.

In the microgravity environment where the space station is located, urine must be treated in a different way from the conventional wastewater on the ground. The main method of urine treatment in space station is distillation? Advanced oxidation method and biological method.

Waste water is recycled.

In the past short-term missions, the consumable materials and water needed by astronauts can be transported back and forth through the ground and space. However, in the long-term manned space station, if the consumable resources are supplied through the ground, it will produce huge transportation and maintenance costs. Therefore, it is necessary to recycle consumables, such as atmosphere and wastewater, to reduce the burden of ground logistics and reduce operating costs.

The environmental control and life support technology of space station is to realize the recycling of materials consumed by manned spacecraft. Space environment control and life support technologies include oxygen regeneration system, wastewater regeneration system, atmospheric pressure and composition control, cabin temperature and humidity control. Health and waste management. In the wastewater regeneration system, the sources of wastewater include carbon dioxide reduction, condensed water generated by cooling and dehumidification, domestic wastewater and passenger urine.