Method for hydraulically capturing groundwater pollutants
A pollutant and groundwater technology, which is applied in water/sewage treatment, water/sludge/sewage treatment, polluted groundwater/leachate treatment, etc., can solve the problems of heavy workload, low efficiency, and restrictions on the application of hydraulic interception technology. Promotion and other issues to achieve the effect of low cost, flexible operation and shortened design time
Inactive Publication Date: 2019-02-01
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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[0004] However, there are many factors that need to be considered in the application of this technology, such as the number of pumping holes in the study area, spacing, single-hole pumping volume, etc. How much influence do these factors have on the hydraulic interception effect? Which of the above parameters is the main influencing factor? 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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Embodiment 1
[0023] A method for hydraulic interception of groundwater pollutants, comprising the steps of:
[0024] 1) Taking a polluted site as an example, in the area where the distribution range of the pollution plume in the aquifer is known (according to the monitoring of groundwater quality in a polluted site and its surrounding areas, the distribution of pollutants in the groundwater is centered on the site in an elliptical distribution, with the major axis The direction is northeast-southwest, and the distribution range is 11775m 2 ; The long axis is consistent with the groundwater flow direction, and the pollutant content gradually decreases from northeast to southwest along the long axis, see figure 1 ), select the factors that affect the hydraulic interception effect: the number of pumping wells, the spacing, and the pumping volume of a single hole;
[0025] 2) Utilize the uniform design method to form different hydraulic interception schemes;
[0026] Table 1: Hydraulic inter...
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The invention discloses a method for hydraulically capturing groundwater pollutants. The method comprises the following steps: 1) selecting factors affecting the hydraulic capturing effect, comprisingthe quantity, the spacing and the single pump output of water pumping wells, in a pollution plumage distribution range area in a known aquifer; 2) using a uniform design technology to form differenthydraulic capturing schemes; 3) carrying out situation simulation on the different hydraulic capturing schemes by using groundwater simulation system software; and 4) hydraulically capturing the groundwater pollutants by using the optimum factors affecting the hydraulic capturing effect. The hydraulic capturing schemes are designed by using the uniform design technology, and are applied to the hydraulic capturing of the groundwater pollutants, so the method overcomes the blindness of hydraulic capturing scheme design, reduces the workload, has the advantages of low cost, flexibility in operation and strong applicability, is suitable for places having obvious risk pollution sources, and is used to solve the problems of difficult influence factor recognition, large optimization workload andunsatisfactory treatment effect optimization in the application process of existing hydraulic capture technologies.
Description
technical field [0001] The invention relates to a method for optimizing the scheme of hydraulic interception of groundwater pollutants, in particular to a method for optimizing the design of the hydraulic interception scheme by using a uniform design. Background technique [0002] Groundwater resources play a pivotal role in 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 more and more widely developed and utilized. However, with the development of society and economy, massive discharge of industrial waste water, agricultural pollutants, intensive livestock and poultry breeding and excessive use of nitrogen fertilizer, random discharge of municipal solid waste, and disorderly development of groundwater have gradually caused groundwater to be affected. pollute. The pollutant components are developing from inorganic to organic, and the de...
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Login to View More IPC IPC(8): C02F1/00
CPCC02F1/00C02F2103/06
Inventor 李海明肖瀚张荣海
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY