A device for simulating the gradient distribution of oxygen content in groundwater

Abstract

The invention provides a device for simulating the gradient distribution of oxygen content in groundwater, which includes an anaerobic water supply and flow rate control device, a capacity adjustment structure, and a sand and soil box. The anaerobic water supply and flow rate control device is connected to the sand and soil box through a rubber tube. The capacity adjustment structure is placed between the sand tanks and connected together. The first glass component in the anaerobic water supply and flow rate control device is connected to the second glass component through a connecting pipe with a valve. The capacity adjustment structure includes a support rod, a support rod Located on the upper part of the capacity adjustment structure for support, the sand box includes a collection hole, a front panel, a rear panel, a bottom plate, a fastening bolt structure and a mortise joint structure; the device of the present invention fully considers the groundwater environment with different oxygen content, different At the same time, the device has a simple structure, many functions, and the design meets the actual needs. It is suitable for various simulation areas, can be used repeatedly, and has great scalability. Subsequent further improvements have a good preliminary foundation and are convenient for wide application. for research.

Description

Technical field [0001] The present invention belongs to the technical field of water quality equipment, and specifically, a simulation device of a pollutant in a two-dimensional space, and in particular, the influence of oxygen content and flow rate in groundwater involving underground pollutants in two-dimensional space. Simulation device. Background technique [0002] Groundwater is an important part of our water resources, but with the rapid development of my country's economy, my country's groundwater pollution has become more serious. Studies have shown that groundwater pollution is getting more serious, and it is also increasingly complex, and the degree of pollution is gradually increased. However, the migration law of groundwater is difficult to discuss in an intuitive factor of the complexity, period length and size of the underground environment. It is possible to provide a scientific basis for the scientific basis for the simultaneous assessment of pollutants in the un...

AI Technical Summary

Problems solved by technology

[0004] First, the problem of the change of oxygen content at different depths in groundwater is ignored. In the saturated zone and in the unsaturated zone, environments with different oxygen content will be produced. For some pollutants, their concentration in the groundwater environment with different oxygen content Migration rules are quite different

[0005] Second, the simulation situation of the device is less, and the traditional device cannot adjust the model according to the test needs to comprehensively consider various research areas

[0006] Third, there are obvious deficiencies in the one-dimensional soil column model, such as the anisotropy of the soil, the penetration and diffusion of pollutants, etc. cannot be reflected

[0007] Fourth, the groundwater flow rate is uncontrollable

The previous model device has not accurately controlled the groundwater flow rate, and the groundwater and pollutants will be affected by the fluctuating water flow rate in the test device, resulting in a large test error

[0008] Fifth, the model has no room for improvement

Most of the existing models can only be applied to the same type of research and cannot be reused. As the research progresses, the model parameters need to be adjusted continuously, and the existing models cannot meet the requirements.

Images