China's first controlled ecological life insurance integration experiment was a complete success
How many plants can provide a person with the oxygen needed and maintain normal life needs? On December 1, China ’s first controlled ecological life support integration experiment was a complete success, which opened the mystery for us-the 30-day closed period, 36 square meters Rice plants, including four kinds of vegetables including lettuce, oilseed rape, purple-backed sunflower and bitter chrysanthemum, can provide all the breathing oxygen for the 2 test participants, absorb the exhaled carbon dioxide, and provide part of the food.
At 5 pm on the same day, the test crew Tang Yongkang and Mi Tao ended the 30-day confinement period and walked out of the confined test cabin in good physical condition. This test verifies the integrated experimental platform of the controlled ecological life support system independently developed by China, which is of landmark significance for promoting the development of China's long-term manned spaceflight environmental control life support technology.
Carrying out long-distance, long-distance and multi-crew manned deep space exploration and settlement and development of extraterrestrial planets is the inevitable direction of future aerospace technology development, and the establishment of a controlled ecological life support system is the fundamental way to solve its life support problems. Controlled ecological life insurance system, also known as bio-renewable life insurance system, mainly produces food, oxygen and water for occupants through higher plants and microalgae, and removes carbon dioxide and other gases; provides animal protein for occupants by feeding animals; and decomposes waste by microorganisms Converted into reusable substances, so as to achieve a completely closed cycle of substances in the system.
The experiment relies on the integrated experimental platform of the controlled ecological life support system independently built by the Astronaut Center. The occupant fresh food method is China's first truly integrated study of a controlled ecological life insurance system.
In this test, the Astronaut Center broke through the key technologies such as the "human-plant" atmospheric oxygen and carbon dioxide exchange dynamic balance control, microbial wastewater comprehensive treatment and recycling, and the closure of the atmosphere, water and food reached 100% 85% and 15%. During the test, each crew member can pick and eat 30-50 grams of fresh vegetables per meal.
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