Groundwater pollutant hydraulic capture optimization method through orthogonal design and GMS coupling

Abstract

The invention relates to the method for groundwater pollutant hydraulic capture scheme optimization, and provides a method for hydraulic capture scheme optimization. According to the technical scheme, a groundwater pollutant hydraulic capture optimization method through orthogonal design and GMS coupling includes the following steps: (1) determining the location and the scale of a pollution source, and determining main pollutants in groundwater, (2) collecting hydrogeologic resources of a researched area, and determining hydrogeologic parameters of the researched area, (3) generalizing hydrogeologic conditions of the researched area, (4) selecting factors influencing the hydraulic capture effect by means of the orthogonal design method, (5) carrying out scenario simulation on different hydraulic capture schemes selected through the orthogonal design by means of a groundwater simulation system (GMS), (6) determining the hydraulic capture effect of the optimal scheme, and (7) determining the hydraulic capture scheme suitable for practical conditions according to the hydrogeologic conditions of a site. The method is mainly applied to water pollutant hydraulic capture.

Description

technical field [0001] The invention relates to a method for optimizing the hydraulic interception scheme of groundwater pollutants, specifically a method for optimizing the design of the hydraulic interception scheme by using orthogonal design and groundwater numerical simulation software GMS (Groundwater Modeling System). technical background [0002] Groundwater resources occupy a pivotal position in our country's water resources. Because of their wide distribution, good water quality, strong regulation and storage capacity, and high degree of water supply assurance, groundwater resources are being developed and utilized more and more widely. However, with the development of society and economy, massive discharge of industrial waste water, agricultural pollutants, intensive livestock and poultry breeding, excessive use of nitrogen fertilizer, arbitrary discharge of urban domestic waste, and disorderly development of groundwater have gradually caused groundwater to be affec...

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Problems solved by technology

[0004] However, many factors need to be considered in the application of this technology, such as hydrogeological conditions in the study area, aquifer lithology, thickness, and the number and spacing of pumping holes, single-hole pumping volume, and well layout methods. The magnitude of the interception effect? Who are the main influencing factors? How to achieve the best combination of factors affecting the effect of hydraulic interception, that is, to select the best hydraulic interception scheme? These problems restrict the application and promotion of hydraulic interception technology in the treatment of polluted groundwater

At present, the method of manual debugging is mainly used, which has a large workload and low efficiency. Therefore, finding a good optimization technology to improve work efficiency has become the key to the actual use of hydraulic interception technology.

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