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Volatile organic contaminated soil biotoxicity testing device and using method thereof

A biotoxicity test, volatile organic technology, applied in the direction of soil material testing, material inspection products, etc., can solve the problem of inapplicable volatile organic pollution soil, etc., and achieve the effect of high sensitivity

Pending Publication Date: 2022-01-28
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

ISO has formulated multiple test methods based on collembola such as Baifutiao, but these methods are suitable for non-volatile organic pollution and heavy metal pollution sites, not for volatile organic pollution soils

Method used

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  • Volatile organic contaminated soil biotoxicity testing device and using method thereof
  • Volatile organic contaminated soil biotoxicity testing device and using method thereof
  • Volatile organic contaminated soil biotoxicity testing device and using method thereof

Examples

Experimental program
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Embodiment Construction

[0023] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings.

[0024] A kind of volatile organic pollution soil biotoxicity testing device, such as figure 1 As shown, when using this device, first quantitative (eg 500g) soil to be tested is filled in the soil sample bottle 1 .

[0025] In the air washing and testing device bottle 12, apply oily glue without volatile substances on the lower side of the glass partition 7 of the upper cover. Place a sponge on area A on the glass partition 9 of the bottle body, apply oily glue without volatile substances on area B, and place a capillary tube on the bottom of the sponge, fill the bottom of the bottle with deionized water as a scrubbing solution, and the liquid level is lower than the body of the bottle Glass partition9.

[0026] Start the peristaltic pump 6, so that the air flow enters the bottom of the soil sample bottle 1 from the bottom, exits the soil ...

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Abstract

The invention provides a volatile organic contaminated soil biotoxicity testing device and a using method thereof. The device is composed of a soil sample bottle, a gas washing and testing device bottle and a peristaltic pump, the top of the gas washing and testing device bottle is connected with the bottom of the soil sample bottle through a guide pipe, and the peristaltic pump is arranged on the guide pipe; a guide pipe connected above the soil sample bottle penetrates through a guide pipe insertion opening in the bottle body of the gas washing and testing device bottle and is inserted into the bottle bottom. According to the device, a solution containing volatile pollutants is siphoned into a sponge through a capillary tube, so that the wetness of the sponge is maintained, a humid environment condition required by Folsomia candida is guaranteed, and meanwhile, the avoidance behavior of the Folsomia candida is tested. The device can be used for simultaneously testing the influence of volatile pollutants in air and an aqueous solution on the Folsomia candida, and is high in sensitivity.

Description

technical field [0001] The invention relates to a biotoxicity testing device for volatile organic polluted soil and a method for using the same, and belongs to the field of soil biological comprehensive toxicity testing methods aimed at soil habitat functions. Background technique [0002] As a special class of soil pollutants, volatile organic compounds are listed as potentially dangerous pollutants in the environment and should be prioritized for control because of their complexity and hazards. The pollution diagnosis of site soil can provide an important basis for site management decision-making. At this stage, the diagnosis of soil pollution in my country is mainly based on the analysis of pollutant concentration, which has the disadvantages of high detection cost, preset detection indicators directly affect the detection results, and cannot reflect the comprehensive toxicity of complex multi-component pollutants. [0003] Using sensitive organisms to directly reflect t...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 汪贞古文梁梦园范德玲王蕾石利利邢维龙
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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