Sand tank device capable of simulating migration and accumulation of pollutants in underground water aquifer

The invention discloses a sand tank device capable of simulating migration and accumulation of pollutants in an underground water aquifer, and relates to the field of underground water pollution simulation devices.The sand tank device comprises a sand tank and a water level control overflow box, the sand tank comprises a sand tank body and two porous baffles, the two porous baffles are installed on the two sides of the sand tank body, and the water level control overflow box is installed on the sand tank body; the sides, close to each other, of the two porous baffles are each provided with a 300-mesh nylon net in an adhesive mode, and the nylon nets are used for preventing sand from penetrating. It needs to be explained that in the embodiment of the invention, the migration characteristics of the target pollutants in the underground aquifer can be intuitively reflected; dynamic monitoring of concentrations of target pollutants at different points of an underground aquifer and related chemical indexes can be r