Method for growing plants by using space waste and wastewater

A plant and waste technology, applied in the field of plant cultivation, can solve the problems of ignoring waste and waste integration, and achieve the effects of improving stability and self-sufficiency, rich nutrient content, and improving sealing degree

Inactive Publication Date: 2013-01-16
中国人民解放军总装备部航天医学工程研究所
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Problems solved by technology

[0005] However, such inventions have the disadvantage of only focusing on the development of a single technology, while ignoring the integration of treated waste and waste for plant cultivation

Method used

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  • Method for growing plants by using space waste and wastewater
  • Method for growing plants by using space waste and wastewater
  • Method for growing plants by using space waste and wastewater

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Embodiment 1

[0021] (1) First, crush 2 kg of wheat straw after harvesting, with a length of 1.0 to 2.0 cm, add 160 grams of wheat bran, add 16 grams of ammonium nitrate and 10 grams of superphosphate to adjust the carbon-nitrogen ratio of the fermentation material to 30:1 , the ratio of carbon to phosphorus is 75:1, add 3 kg of tap water to adjust the water content to 60%, adjust the pH value to 6.5-8.0, and mix well. After the straw is pretreated, add 1 gram of cellulase, 10 grams of ripening nutrient and 10 mL of VT-1000 compound bacterial agent liquid, mix well and put it in an airtight container, turn it over every 9 days, and supplement water and air during this period , Carry out the fermentation of 40~50 days. During the fermentation process, the temperature can reach 72°C. After the fermentation heat, it is dark brown and granular, with a small amount of residual straw. See Table 2 for the comparison of nutritional indicators between straw fermentation products and peat. Straw fer...

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Abstract

The invention relates to a method for growing plants by using space waste and wastewater. According to the method, wheat straws are used as the main raw material of the space waste, the waste is subject to pretreatment, fermentation by added microbial inoculums and through-decomposing treatment, is mixed with vermiculite according to a ratio of 1:1 to be a soil substrate and is used as a plant growing substrate; the analog space wastewater is used as the main raw material of the wastewater, the wastewater is subject to primary deposition, filtering by a zeolite layer, foamless oxygen supply micro-organism treatment, and the like, is mixed with tap water and Hoagland full-nutrient solution according to a ratio of 1:1:2 to be plant nutrient solution. According to the method, the technique condition of using analog wastewater and waste renewable resources for plants is researched on the basis of using the method of waste and wastewater renewable resources recycling method in agricultural and industrial productions for reference and according to the characteristics of a sealed ecosystem, so that an excellent solving way is provided for performing plant growing in a controlled ecological life support system under a space condition by using renewable resources, and improving the closure of the system.

Description

technical field [0001] The invention relates to a method for plant cultivation by using space waste and waste water in a controlled ecological life support system. Background technique [0002] With the development of the aerospace industry and the needs of human beings stationed in space, the controlled ecological life support system will become a must-have life support system for human beings to carry out long-term, long-distance and multi-crew manned space flights, deep space exploration and planetary settlements . In the controlled ecological life support system, plants are the key biological components. How to cultivate plants in space is one of the important research contents of the system, and it can be said that it is the most effective to grow green plants in space to produce food. method. For example, the Kennedy Space Center of the United States has done a lot of research and application work on the use of soilless cultivation to produce the food needed by astro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00C05G3/00C05F7/00
CPCY02A40/20
Inventor 郭双生程泉勇唐永康艾为党秦利锋
Owner 中国人民解放军总装备部航天医学工程研究所
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