Efficient reuse treatment method for manned spacecraft urine

Abstract

The invention relates to an efficient urine recycling treatment method for a manned spacecraft. The method comprises the following steps: collecting urine in a container; monitoring the urine in the container, starting to stir the urine in the container when the liquid level of the urine in the container is higher than a urine stirring setting position, and stopping stirring the urine in the container when the liquid level of the urine is lower than the urine stirring setting position; and with the continuous increase of the urine flowing into the container, when the liquid level of the urine in the container further rises to be above the urine stirring setting position and reach a urine output setting position, delivering the urine in the container into an anaerobic biological fluidized bed ABFB for treatment. The invention aims to provide the efficient urine recycling treatment method for the manned spacecraft, and the efficient urine recycling treatment method can realize efficient hydrolysis of high-molecular organic matters and urea under the action of an enzymatic reaction of urease through hydrolytic acidification so as to realize the conversion of high-concentration urine wastewater and effectively improve the biochemical degradation performance of the urine wastewater, and has the advantages of low energy consumption and good treatment effects.

Description

technical field [0001] The invention relates to a high-efficiency recycling treatment method for manned spacecraft urine. Background technique [0002] Traditional heavy urine wastewater from manned spacecraft is rich in high concentrations of ammonia nitrogen and certain organic matter and phosphate. In a closed and controlled system, urine wastewater needs to be treated efficiently and reused to the greatest extent to realize the reuse of water resources and N substances , to ensure the long-term efficient operation of the aircraft and ensure the daily metabolism of the astronauts. [0003] At present, the International Space Station and most of the aircraft adopt physical and chemical methods, such as wet high-temperature catalytic oxidation, distillation and condensation, etc. to treat and reuse urine wastewater, but the physical and chemical methods have low processing load and high unit energy consumption. Feasible, but for manned spacecraft with long-term space opera...

AI Technical Summary

Problems solved by technology

[0003] At present, the International Space Station and most of the aircraft adopt physical and chemical methods, such as wet high-temperature catalytic oxidation, distillation and condensation, etc. to treat and reuse urine wastewater, but the physical and chemical methods have low processing load and high unit energy consumption. Feasible, but for manned spacecraft with long-term space operations, such as deep space resident systems, energy consumption issues limit the application of materialization methods