An experimental system and experimental method for monitoring the release of pollutants in sediment during flooding

Abstract

The invention discloses an experimental system for monitoring release of pollutants from the bottom sediment in a flood process, the experimental system includes a pollution sand sample mixing device, a sand wave preparation monitoring device and a sampling device, the pollution sand sample mixing device includes a sand mixing container used for mixing water sand and the pollutants, a water sand mixing box used for storing a water sand mixture and a sewage pool used for storing the pollutants, the water sand mixing box is connected with the top of the sand mixing container by a conduit, the sewage pool is respectively connected with the top and the bottom of the sand mixing container by water conduits, the sand wave preparation monitoring device comprises at least one detachable sand wave mold and an electric conductivity probe placed in the sand wave mold, and the sampling device comprises a sampler and a plurality of removable sampling plates, wherein the sampler is provided with an upper opening and a lower opening, and is assembled by the plurality of removable sampling plates. The experimental system adopts the manner of vacuum pump and conduit drainage combination, and uses the simple inverted siphon physical principle, the water sand in the water sand mixing box is sucked into the sand mixing container, and a great deal of manpower and time are saved.

Description

technical field [0001] The invention relates to an experimental system and an experimental method in the process of flood monitoring, in particular to an experimental system for monitoring the release of pollutants in bottom mud during the flood process and a method for using the same. Background technique [0002] With the rapid development of the existing economy and the continuous acceleration of urbanization, the health of rivers has become a major concern. However, it is far from enough to focus on surface water for the treatment of existing rivers. Shallow water in rivers and sediment The groundwater in the upper layer is constantly being exchanged. Pollutants enter the groundwater from the surface water, stay in the sediment for a short time, and then release into the surface water, causing secondary pollution to the river. Due to the defects of the existing technology and the complexity of field experiments However, the process of how the pollutants are released from...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of the existing economy and the continuous acceleration of urbanization, the health of rivers has become a major concern. However, it is far from enough to focus on surface water for the treatment of existing rivers. Shallow water in rivers and sediment The groundwater in the upper layer is constantly being exchanged. Pollutants enter the groundwater from the surface water, stay in the sediment for a short time, and then release into the surface water, causing secondary pollution to the river. Due to the defects of the existing technology and the complexity of field experiments However, the process of how the pollutants are released from the sediment is very vague. Previous studies have focused on the analysis of indoor experiments, and it is difficult to obtain specific results for the real process of field experiments.

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