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Organic waste treatment device for spatial permanent base

A technology for organic waste and treatment equipment, which is applied in the field of organic waste treatment equipment in permanent space bases, and can solve problems such as insufficient contact between materials and oxygen, insufficient stability of oxygen consumption rate test, inability to perform both aerobic and anaerobic fermentation, etc.

Inactive Publication Date: 2010-08-04
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a series of problems need to be solved in order to apply it to BLSS: the structure of the device often cannot be used for both aerobic and anaerobic fermentation, the test of oxygen consumption rate is not stable enough, the material is not mixed uniformly, and the material and oxygen Insufficient contact, etc.

Method used

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  • Organic waste treatment device for spatial permanent base
  • Organic waste treatment device for spatial permanent base
  • Organic waste treatment device for spatial permanent base

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Effect test

Embodiment 1

[0020] During aerobic fermentation, figure 1 30 in it is an air pump or a gas cylinder with a certain oxygen concentration gas. In the bio-regenerative life support system, oxygen is a very precious bio-protection substance. Some compartments or equipment output gas with low oxygen content or high concentration of CO 2 Such as gas, can not be used to breathe. However, aerobic fermentation has much lower gas requirements than humans, as long as the partial pressure of oxygen can meet the requirements of aerobic fermentation. Therefore, during aerobic fermentation, air that is not suitable for breathing can be used as input gas to maintain the aerobic fermentation process at a lower operating cost.

[0021] Before fermentation, the solid waste should first be crushed to a certain particle size, mixed with the partially decomposed fermentation material, and the moisture content should be adjusted to about 60%, and the pH value should be neutral. Then its feed port 17 ( figur...

Embodiment 2

[0026] During anaerobic fermentation, figure 1 30 in it is a nitrogen cylinder or a gas cylinder containing gas with an extremely low oxygen concentration. Before fermentation, continuous aeration is required to discharge the oxygen in the device. During the fermentation process, continuous aeration or intermittent aeration can be selected to prevent CH 4 If the concentration of anaerobic fermentation products is too high, it will affect the reaction process. The motor 19 rotating speed is about 1rpm, and its purpose is only to prevent material agglomeration. The sensor module 22 only needs to measure CO 2 Concentration and CH 4 concentration. The rest of the operations are similar to aerobic fermentation. The material after combined aerobic and anaerobic treatment is suitable for use as a plant cultivation substrate in nature.

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Abstract

The invention provides an organic waste treatment device for a spatial permanent base, which mainly aims at the recycle problem of organic wastes (inedible plant biomass, excrement, kitchen garbage and the like) in a bio-regenerative life support system of a long-time and long-distance spatial manned base (such as permanent moon base and a mars base). The device consists of a fermentation tank body, a gas inlet pretreatment system, a gas outlet condensation system, a stirring system, a percolate collecting reflux system, a heating temperature control system, a tail gas treatment system, a sensor system and an automatic control system. The device can be used for both aerobic fermentation and anaerobic fermentation, can automatically monitor and adjust main indexes of a fermentation process, improves an oxygen consumption rate monitoring method, and improves the form of a stirrer and a temperature control mode. Biogas produced by fermentation is adsorbed by a plant culture medium. The percolate is refluxed into the material for compensating moisture brought out by the emitted gas.

Description

technical field [0001] The invention relates to a device for treating organic waste in a space permanent base, mainly aimed at organic waste in a long-time, long-distance space manned base (such as a permanent base on the moon, a base on Mars, etc.) in a Bioregenerative Life Support System (BLSS). Recycling of waste (plant non-edible biomass, manure, kitchen waste, etc.). Background technique [0002] Bioregenerative Life Support System (Bioregenerative Life Support System, BLSS) is an independent, complete and complex system that uses organisms such as higher plants and microorganisms to produce food, process waste, and regenerate air and water to provide material support for astronauts' life activities. . It is based on the physical and chemical non-regenerative and regenerative environmental control and life support system (Environmental Control and Life Support System, ECLSS), introducing the concept of biotechnology and ecological balance, trying to create a combinatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00C05F15/00
CPCY02E50/30Y02W30/40
Inventor 刘红胡恩柱
Owner BEIHANG UNIV
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