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Groundwater pollution monitoring network optimization method based on two-step TOPSIS method

A technology for groundwater pollution and optimization methods, applied in general water supply conservation, data processing applications, instruments, etc., can solve problems such as regional pollution status and hydrogeological conditions that cannot be comprehensively considered, so as to reduce deployment and maintenance costs and reduce redundancy. , the effect of uniform distribution

Active Publication Date: 2021-05-14
WUHAN UNIV
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Problems solved by technology

[0006] In order to solve the problem that the traditional groundwater pollution monitoring network optimization method cannot comprehensively consider the current situation of regional pollution and hydrogeological conditions, and cannot take into account the spatial distribution and statistical characteristics of the monitoring network to screen alternatives, the present invention provides a method based on groundwater pollution data, Based on the hydrogeological condition data and the existing monitoring well spatial position data, the groundwater pollution monitoring network optimization method can be used to rank the monitoring wells based on the regional pollution status and hydrogeological conditions, and take into account the spatial and statistical characteristics of the scheme to obtain the best results. best optimization plan

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  • Groundwater pollution monitoring network optimization method based on two-step TOPSIS method
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  • Groundwater pollution monitoring network optimization method based on two-step TOPSIS method

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Embodiment 1

[0029] Example 1: [Take the data of an oilfield production area in Northeast China as an example]

[0030] According to the field investigation, there are 15 monitoring indicators involved in the screening of typical pollutants, including 9 inorganic indicators, namely sodium, total hardness, iron, manganese, chloride, sulfate, nitrate, total dissolved solids (TDS), Chemical oxygen demand (COD); 6 organic indicators, namely total petroleum hydrocarbons (TPH), benzene, toluene, ethylbenzene, xylene, and naphthalene. The specific location of monitoring well distribution is as follows: figure 1 .

[0031] Calculated according to the factor product method taking into account the statistical characteristics of the median, the obtained scores and rankings of groundwater pollutants are shown in Table 1, and the top three pollutants with higher scores are selected as typical pollutants, that is, the typical regional pollutants are iron, Manganese and TPH.

[0032] Table 1 The score...

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Abstract

The invention discloses an underground water pollution monitoring network optimization method based on a two-step TOPSIS method. The method comprises the following steps: (1) acquiring coordinate data, pollutant concentration data and regional hydrogeological data of an underground water monitoring well; (2) calculating a typical pollutant weighted comprehensive pollution index and an antifouling performance index of each monitoring well point location; (3) sorting the monitoring capability of the monitoring well by using a TOPSIS method in combination with the two indexes; (4) layering an existing monitoring network scheme based on a stratified sampling idea to obtain an optimization alternative scheme of the number of each monitoring well; and (5) on the basis of comprehensively considering four indexes of alternative scheme space and statistical characteristics, sorting the alternative schemes by adopting a TOPSIS method, and taking the alternative scheme with the highest score as an optimal optimization scheme. The invention provides a method for performing optimization on the basis of an existing groundwater pollution monitoring network, and the method is suitable for other research areas with similar regional characteristics and similar optimization requirements, and has certain generalizability.

Description

technical field [0001] The invention belongs to the field of optimizing distribution points, and in particular relates to a method for optimizing a groundwater pollution monitoring network based on a two-step TOPSIS method. Background technique [0002] The groundwater pollution monitoring network is a network of regional groundwater pollution monitoring wells. The layout of the underground pollution monitoring network affects the accuracy and efficiency of groundwater pollution information acquisition. However, the spatial location of the monitoring network is often unreasonable. Therefore, it is necessary to improve the effectiveness of monitoring well location layout, so as to obtain specific information on groundwater pollution-related parameters as comprehensively as possible. [0003] Traditional groundwater pollution monitoring network optimization design methods include hydrogeological analysis, cluster analysis and Kriging interpolation. Among them, the hydrogeolog...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/08G06Q50/26G06K9/62
CPCG06Q10/06393G06Q50/08G06Q50/26G06F18/23Y02A20/152
Inventor 陈奕云蒋江俊男陈敏董维红胡亚珍
Owner WUHAN UNIV
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