Underground water nitrogen pollution source quantitative analysis method and device based on multiple tracers

A groundwater and pollution source technology, used in measurement devices, geophysical measurements, and exploration of nuclear radiation

Active Publication Date: 2020-09-04
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

[0005] For this reason, this application proposes a quantitative analysis method for groundwater nitrogen pollution sources based on multiple tracers, which solves how to quantitatively identify the source of polluted groundwater and its dynamic in

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  • Underground water nitrogen pollution source quantitative analysis method and device based on multiple tracers
  • Underground water nitrogen pollution source quantitative analysis method and device based on multiple tracers
  • Underground water nitrogen pollution source quantitative analysis method and device based on multiple tracers

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Embodiment Construction

[0030] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0031] The method and device for quantitative analysis of groundwater nitrogen pollution sources based on multiple tracers according to the embodiments of the present application will be described below with reference to the accompanying drawings.

[0032] figure 1 It is a schematic flowchart of a multi-tracer-based quantitative analysis method for nitrogen pollution sources in groundwater provided in the embodiment of this application.

[0033] Such as figure 1 As shown, the method includes the following steps:

[0034] ...

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Abstract

The invention provides an underground water nitrogen pollution source quantitative analysis method and device based on multiple tracers. The method comprises the following steps: identifying a supplysource of underground water according to an atmospheric precipitation line equation of hydrogen and oxygen isotopes and spatial distribution of the hydrogen and oxygen isotopes, and analyzing and identifying spatial distribution of surface water infiltration conditions according to spatial distribution formed by radon isotopes; identifying the pollution source of the underground water nitrate in the determination area by utilizing a characteristic interval formed by nitrate nitrogen and oxygen isotopes of different pollution sources and a mixed end member graphic method, and analyzing the influence of the domestic sewage on the underground water pollution in the determination area by utilizing the spatial distribution of the caffeine concentration; calculating contribution rates of different pollution sources to underground water nitrate nitrogen pollution of the determination area; and establishing a heat conduction convection model according to the waterfront sediment temperature information to calculate the waterfront sediment profile seepage flow. Therefore, the influence of the interaction process of the surface water and the underground water is comprehensively considered, and the dynamic characteristics of the polluted underground water supply and interaction process are quantitatively analyzed.

Description

technical field [0001] The present application relates to the field of water pollution prevention and control, in particular to a method and device for quantitative analysis of groundwater nitrogen pollution sources based on multiple tracers. Background technique [0002] The current water environment situation in my country is still severe. Existing research usually focuses on the response of the surface water system, and pays little attention to the recharge and contribution rate of underground runoff. [0003] However, the groundwater accepts the infiltrated water and pollutants through the infiltration and recharge process, and under certain hydraulic conditions, it constitutes a potential pollution source of the surface water body through the excretion process. The relationship between water quantity and quality of groundwater is of great significance to find out the real composition of water quantity and the real process of water pollution. In recent years, the rapid ...

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Application Information

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IPC IPC(8): G01V15/00G16C20/70
CPCG01V15/00G16C20/70
Inventor 秦成新李广贺杜鹏飞
Owner TSINGHUA UNIV
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