Method for absorbing and storing radon
A technology of desorption and activated carbon adsorption, applied in separation methods, chemical instruments and methods, inorganic chemistry, etc., to achieve the effects of improving equipment use efficiency, reducing costs, and low-cost desorption regeneration
Inactive Publication Date: 2011-11-23
第二炮兵装备研究院第六研究所 +1
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Therefore, after the adsorption of activated carbon is saturated, the desorbed high-concentration radon (on the order of hundreds of thousands of Bakers) cannot be directly discharged to the site or ventilation ducts to cause secondary pollution, and must be disposed of by itself. How to deal with the high-concentration radon that is periodically "transferred" from the activated carbon for adsorption by itself is a big problem, but it is the key issue that determines the success or failure of radon reduction.
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[0021] In order to facilitate the understanding of the technical solutions of the present invention, the following will be introduced in conjunction with specific implementation manners.
[0022] Such as figure 2 Shown, the absorption storage method of the radon of the embodiment of the present invention, comprises the following steps:
[0023] Step S100, after the activated carbon for adsorption adsorbs radon in the air through the activated carbon adsorption method to reach adsorption saturation, raise the temperature of the activated carbon for adsorption and keep the temperature in the range of 160°C±10°C, and keep the pressure in the range of -0.3 to -0.5 atmospheres In, desorb the radon adsorbed in the activated carbon for adsorption;
[0024] After the activated carbon for adsorption is saturated, the temperature of the activated carbon for adsorption is increased by heating and temperature control and kept in the range of 160°C±10°C; specifically, it can be carried o...
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Abstract
The invention discloses a method for absorbing and storing radon. The method comprises the following steps of: 100, adsorbing radon in air with adsorbing active carbon by using an active carbon adsorption method till saturation, heating the adsorbing active carbon, keeping the temperature of the active carbon at 160+ / -10 DEG and the pressure between -0.3 Pa and -0.5 Pa, and desorbing the radon which is adsorbed in the adsorbing active carbon; and 200, sucking the radon which is desorbed by the adsorbing active carbon by using a vacuum pump at the flow 20-25 L / minute and pressing the radon into a stagnant carbon bed for storing. According to the method, the radon adsorbed in a limited space can be effectively desorbed and stored.
Description
technical field [0001] The invention relates to the technical field of removing harmful gases, in particular to a method for absorbing and storing radon. Background technique [0002] Since the human first discovered the hazards of indoor radon in the late 1960s, the research on radon monitoring and protective measures has never stopped. However, so far, there is still no convenient and efficient method except ventilation. For areas where ventilation cannot be used to reduce radon, radon reduction methods based on liquid absorption method and activated carbon adsorption method have also been proposed at home and abroad, but the effect and engineering application are very limited. [0003] 1) The liquid absorption method utilizes the property that radon is soluble in water and various organic solvents, and can be decomposed from liquid when heated. figure 1 It is a working principle diagram of a radon reduction device based on liquid absorption method. When the radon-contai...
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IPC IPC(8): C01B23/00B01D53/04
Inventor 周百昌朱文凯王新赤赵锋涛陈坤陈军熊建平
Owner 第二炮兵装备研究院第六研究所