Device and method for imitating pollutant transport and upstream salty water of riverway with repeated tidal flow

Abstract

The invention belongs to the technical field of the water ecological environment, and particularly to a device and a method for stimulating pollutant transport and upstream salty water of a riverway with a repeated tidal flow. The device comprises an upstream flow control device, a middle water tank device and a downstream tidal flow control device, and is characterized in that the upstream flow control device comprises a water inlet pipe, a constant flow water tank and an upstream water level control water tank; the middle water tank device comprises a water tank body, a speed measuring device and a pollutant sewage inlet tank; the downstream tidal flow control device comprises a tide water level control water tank, a tide backflow stimulation water tank, a compensation or seawater salinity stimulation water tank; the upper end of the water tank body is connected with the upstream water level control water tank while the lower end thereof is connected with the tide water level control water tank; the tide water level control water tank is connected with the tide backflow stimulation water tank; the compensation or seawater salinity stimulation water tank is connected with the tide backflow stimulation water tank. The device and the method for stimulating pollutant transport and upstream salty water of riverway with the repeated tidal flow can stimulate transport and diffusion rules of the pollutants in the riverway with the repeated tidal flow (the upstream salty water rules), and can be widely applied to the simulation tests in the technical field of the water ecological environment.

Description

technical field [0001] The invention belongs to the technical field of water body ecological environment, and relates to a tidal reciprocating flow channel simulation device, in particular to a device and method for simulating the migration of pollutants in a tidal reciprocating flow channel and the upward movement of salt water. Background technique [0002] Haikou is a densely populated area and also the area with the most frequent human activities. With the continuous increase of pollutant discharge along the river, the ecological environment of the river has become more and more prominent, and the implementation of water diversion projects and reservoir dam projects in recent years has reduced the discharge of the upper reaches of the Haikou River. The situation of the water environment is severe; on the other hand, the water exchange period of the Haikou river becomes larger. Affected by the Haikou tide, the entire water body reverberates back and forth. Compared with t...

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Problems solved by technology

For the simulation of the above phenomena, mathematical models are mainly used at present. Considering the approximate assumptions of the mathematical model and the uncertainty of parameter selection, the simulation of the migration and diffusion of pollutants in tidal reciprocating rivers through a more intuitive physical model has not been reported yet.

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