Underground water age determination method

A method of determination, a technique for groundwater, used in testing water, measuring devices, instruments, etc.

Pending Publication Date: 2020-03-13
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Most of the water age measurement methods in the prior art use the calibration measurement method of tritium, but tritium will decay with the years, and Freon is used to measure the age of water. Although Freon will not decay with the years, how to obtain Freon in groundwater is a The key to how to accurately determine the age of groundwater is still a difficult problem to be solved in this field

Method used

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Embodiment Construction

[0030] Such as figure 1 , figure 2 Shown, the invention provides a kind of assay method of groundwater age, comprising:

[0031] S1. Pass the carrier gas into the Freon detector through the first six-way valve arranged on the first carrier gas branch;

[0032] The carrier gas is transported to the Freon detector 12 through the first carrier gas branch 41 to ensure the normal operation of the Freon detector 12 . The first port of the first six-way valve 11 is connected with the first carrier gas branch 41 , and the third port, the fifth port and the sixth port are connected with the Freon detector 12 .

[0033] S2. Displacing the gas in the groundwater in the sample vial through the switch valve on the second carrier gas branch;

[0034] In one embodiment of the present invention, the switch valve 21 can be a four-way valve, the first port of the four-way valve is connected with the second carrier gas branch, the second port is connected with the lower end of the aeration p...

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Abstract

The invention provides an underground water age determination method. The method comprises the following steps of: S1, introducing carrier gas into a Freon detector through a first six-way valve arranged on a first carrier gas branch, S2, replacing the gas in the underground water in the sample bottle through a switch valve on a second carrier gas branch, and S3, introducing the gas into an aeration pipe for treatment, collecting Freon through a cryogenic collection pipe, and introducing the Freon into the Freon detector through the first six-way valve. The underground water age determinationmethod is simple in structure, the content of Freon in the underground water can be obtained and detected, and then the accurate age of the underground water is obtained.

Description

technical field [0001] The invention relates to the technical field of groundwater resource evaluation, in particular to a method for measuring the age of groundwater. Background technique [0002] Whether there is new water recharge in groundwater is one of the most important issues in the evaluation of groundwater resources. How to determine whether there is new water recharge in groundwater is a difficult problem in hydrogeological work. Groundwater age determination is one of the important methods to identify the source of groundwater. [0003] Most of the water age measurement methods in the prior art use the calibration measurement method of tritium, but tritium will decay with the years, and Freon is used to measure the age of water. Although Freon will not decay with the years, how to obtain Freon in groundwater is a The key to how to accurately determine the age of groundwater is still a difficult problem to be solved in this field. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): G01N33/18G01N30/00
CPCG01N33/18G01N30/00
Inventor 乔云峰李发东
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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