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Device for assessment of dust-haze air cleaning effect of plant through growth condition control

A technology for air purification and growth conditions, applied in measurement devices, air quality improvement, instruments, etc., can solve problems such as lack of quantification of plant adsorption

Inactive Publication Date: 2015-04-22
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Before that, we will not be able to make a scientific judgment due to the lack of various data
Among the currently disclosed technologies, there is no technology to specifically quantify plant adsorption by precisely controlling plant growth and making a set of equipment

Method used

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  • Device for assessment of dust-haze air cleaning effect of plant through growth condition control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A device for evaluating the effect of plants on haze air purification by controlling growth conditions (such as figure 1 ), the device includes a test box body of 4 meters × 4 meters × 4 meters, and the wall of the test box is made of transparent materials, and it is guaranteed that the test box will not be deformed under a certain temperature difference and air pressure difference. Place the experimental box in an environment that can control the light intensity, light duration and constant temperature. Illumination equipment and automatic temperature and humidity controllers are installed in the test chamber; air quality detection devices are installed in the test chamber. The test box is provided with an air inlet 3 and an air outlet 4, which are used to introduce air samples collected in areas with severe air pollution into the test box, that is, air with pm2.5, pm1, and pm0.5 in the air that has been measured. The instrument 5 in the test box includes an air suspe...

Embodiment 2

[0034] The structure and equipment of the test chamber are the same as in Example 1.

[0035] Vegetation is set in the test chamber: group B shrubs, using French holly.

[0036] test:

[0037] Air samples collected in areas with severe air pollution were introduced into the experimental box (within 48 hours before the experiment was collected, and the air of pm2.5, pm1, and pm0.5 in the air had been measured). Observe the changes of the air index, so as to study the effect of vegetation on the treatment of tiny suspended particles in the air under controllable conditions.

[0038] CO in the fixed test chamber 2 The content is 0.03%, the temperature is 20±3°C, the humidity is 35%, and the light intensity is 30,000 lux.

[0039] Set up the experimental box, open the door, arrange a soil layer at the bottom of the box, and then arrange plants in the soil layer, and give normal light conditions, plant nutrients, and water. Arrange the lighting system and air quality measuring ...

Embodiment 3

[0041] The structure and equipment of the test chamber are the same as in Example 1.

[0042] Vegetation is set in the test chamber: arbors in group C, cypress (young plants).

[0043] test:

[0044] Air samples collected in areas with severe air pollution (within 48 hours before the collection and the experiment, and the air of pm2.5, pm1, and pm0.5 in the air have been measured) are introduced into the experimental box. Observe the changes of the air index, so as to study the effect of vegetation on the treatment of tiny suspended particles in the air under controllable conditions.

[0045] CO in the fixed test chamber 2The content is 0.03%, the temperature is 20±3°C, the humidity is 35%, and the light intensity is 30,000 lux.

[0046] Set up the experimental box, open the door, arrange a soil layer at the bottom of the box, and then arrange plants in the soil layer, and give normal light conditions, plant nutrients, and water. Arrange the lighting system and air quality...

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Abstract

The invention provides a device for assessment of dust-haze air cleaning effect of a plant through growth condition control, the device includes a 4 m*4 m * 4 m test case, the test case is internally provided with light equipment, an air conditioner and a humidifier; the test case is internally provided with an air suspended particle density measurement instrument, an air carbon dioxide concentration measurement instrument, a temperature detection instrument and a light intensity tracking instrument. BY use of the instruments, temperature and humidity inside the test case can be controlled, the test case is internally provided with fertile soil with the thickness of 300mm, and the plant is planted. In the experimental process of the device, experiment is performed by single variable experimental method, the air purification effect of different tree species in the illumination, temperature, humidity and other conditions can be respectively measured, a corresponding curve graph can be obtained, a corresponding model is established, by input of tree specie, temperature, illumination and other factors, air purification capacity of different forest green lands can be directly forecasted.

Description

technical field [0001] The invention belongs to the technical field of ecological engineering and ecological regulation, and in particular relates to a device and method for evaluating the purification ability of plants. Background technique [0002] Air quality is deteriorating, and smog frequently occurs in major and medium-sized cities in my country, seriously affecting people's daily life. Smog is a kind of disastrous weather, which has an important impact on roads, railways, aviation, shipping, power supply systems, and crop growth. Fog and haze will cause air quality to decline, affect the ecological environment, and bring great harm to human health. In foggy and hazy weather, bacteria and viruses are often contained in the air, which can easily lead to the spread of infectious diseases and the occurrence of various diseases. Air pollutants in the city are not easy to spread, aggravating the toxicity of sulfur dioxide, carbon monoxide, nitrogen oxides and other subst...

Claims

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Application Information

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IPC IPC(8): G01N33/00
CPCY02A50/20
Inventor 冀晓东张鳌刘玉军马超戴显庆彭绍好
Owner BEIJING FORESTRY UNIVERSITY
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