Experiment device and experiment method capable of adjusting riverbed plants

Abstract

The invention discloses an experiment device and an experiment method capable of adjusting riverbed plants. The experiment device comprises a circulating water channel, an experiment water tank and aplant buried depth and control system, wherein a sediment retaining base plate and a water inlet pipe are arranged at the bottom of the water channel; a water level regulator is arranged in the waterchannel; the experiment water tank is connected with the circulating water channel; the plant buried depth and control system is positioned in the circulating water channel and comprises a plant distribution trolley, a plant buried depth regulating device and a plant fixing device. The experiment method mainly comprises the following steps: building an indoor circulating water channel; distributing simulated plants to required positions; simulating the influence of aquatic plants such as field reeds and water grass on pollutants when riverbed migration. Compared with the prior art, the experiment device and the experiment method disclosed by the invention have the advantages that the influence of a sand bed containg plant on migration change of the pollutants is reflected by collecting experimental data and relevant parameters and simulating a migration path of the pollutants by field aquatic plants on the sand bed; in addition, the experiment device can change various parameters suchas flow speed, water depth, base slope, plant buried depth and plant density and is convenient in experiment and intuitive in results.

Description

technical field [0001] The invention relates to a device for simulating the migration and conversion of plant sand bed pollutants in a subsurface flow zone of a river, in particular to an experimental device and an experimental method for regulating river bed plants. Background technique [0002] With the rapid development of the economy, more and more aquatic environments such as rivers and lakes are polluted, and the presence of aquatic plants such as reeds, aquatic plants, and shrubs in the aquatic environment has an important impact on the migration and transformation of pollutants. With the in-depth research on the ecological environment of sediment-laden river water in recent years, people have shifted more attention to the field of rivers and lakes containing plants. There are still many issues about the impact of migration and transformation that have not yet been clarified, and further in-depth research is needed. Pollutants in rivers or lakes undergo subsurface ex...

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Problems solved by technology

[0003] At present, the research on subsurface flow exchange mainly uses indoor circulating tank simulation experiments, but most of them only consider the influence of the sand slope shape of the sand bed. At the same time, although there are circulating tanks containing plants, they are all for the study of water flow characteristics and sand transport characteristics, and for plants containing plants. There is almost no research on the migration and transformation of sand bed pollutants

In addition, the current circulating water tank needs to take out and clean the experimental sand after carrying out the pollutant migration and transformation experiment, resulting in great waste

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