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Microwave radiation treatment method for laboratory exhaust bio-aerosol

A bioaerosol and microwave radiation technology, applied in the direction of irradiation, can solve the problem of limited application of bioaerosol

Inactive Publication Date: 2018-03-13
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Today, microwave radiation is widely used in the field of food and liquids, but its application in the treatment of bioaerosols is still very limited

Method used

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  • Microwave radiation treatment method for laboratory exhaust bio-aerosol
  • Microwave radiation treatment method for laboratory exhaust bio-aerosol

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Experimental program
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Effect test

Embodiment 1

[0021] Step 1: Connect the outlet of the bioaerosol generating device and the exhaust port of the vacuum pump to the inlet of the microwave radiation device through rubber tubes, and connect the K-type thermocouple to the Fe in the microwave radiation device. 3 o 4 In the microwave-absorbing material, connect the bioaerosol sampler to the outlet of the microwave radiation device;

[0022] Step 2: Pack the prepared Escherichia coli bioaerosol suspension into the bioaerosol generator;

[0023] Step 3: Open the bioaerosol generator to make the Escherichia coli bioaerosol suspension in the bioaerosol generator produce Escherichia coli bioaerosol, and start the vacuum pump at the same time, the Escherichia coli bioaerosol and the vacuum pump are pumped The incoming air is mixed and passed into the microwave radiation device, and the flow rate of the vacuum pump and the bioaerosol generating device are adjusted so that the bioaerosol enters the bioaerosol sampler after microwave he...

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Abstract

The invention discloses a microwave radiation treatment method for laboratory exhaust bio-aerosol. The method comprises putting a prepared escherichia coli bio-aerosol suspension into a bio-aerosol generator, starting the bio-aerosol generator so that the escherichia coli bio-aerosol suspension in the bio-aerosol generator produces escherichia coli bio-aerosol, simultaneously, starting a vacuum air sucking pump, mixing the escherichia coli bio-aerosol and air pumped by the vacuum air sucking pump, feeding the mixture into a microwave radiation device, adjusting a vacuum air sucking pump flow and a bio-aerosol generator flow so that the bio-aerosol is subjected to microwave heating in the microwave radiation device and feeding the bio-aerosol into a bio-aerosol sampling device. The energy produced by the microwave radiation can be selectively absorbed by the microbial cells so that the cells produce irreversible change, cell membranes are broken, the cells are inactivated and good treatment effects are obtained.

Description

technical field [0001] The invention relates to a treatment method in the field of atmospheric microorganisms, in particular to a method for treating bioaerosol with microwave radiation. Background technique [0002] Bioaerosols generally refer to aerosols containing microorganisms and other biological components with an aerodynamic diameter of less than 100 μm. There are a large number of bioaerosols in laboratories involving microbial experiments, such as wastewater treatment laboratories and VOCs control laboratories. Especially in the VOCs control laboratory, the microorganisms in the biological filtration tower will form a bioaerosol with the surrounding environment, which will be mixed in the exhaust gas and discharged. Respiratory ingestion of bioaerosols has many negative health effects on human health, resulting in diseases such as respiratory infections, asthma, and decreased lung function. Traditional treatment methods such as filter membranes have limited abili...

Claims

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Application Information

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IPC IPC(8): A61L2/12
CPCA61L2/12
Inventor 王灿刘航张郅巍
Owner TIANJIN UNIV
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