Novel water sample-sediment joint sampling device and sampling method thereof

Abstract

The invention discloses a novel water sample-sediment joint sampling device, comprising a connection tube; a sampling control handle is fixed at the upper end of the connection tube, the lower end of the connection tube is movably connected with a water sampling tube, the water sampling tube, a transition tube and a sediment sampling tube are connected in sequence, the inside of the water sampling tube is divided into a plurality of independent closed compartments by partitions, the upper and lower ends of one side of each closed compartment are provided with a water inlet and a water outlet respectively, an area corresponding to each water inlet is provided with a balloon that is communicated with an external gas source through an inflating tube, the lateral side of the upper end of the sediment sampling tube is provided with a water outlet, a cut-off device is movably connected to the bottom of the sediment-sampling tube, the upper and lower ends of the transition tube are provided with water outlets respectively, a sealing operation rod penetrates the connection tube and the water sampling tube, the upper end of the sealing operation rod penetrates the sampling control handle and fixedly connects with the sealing control handle, the middle of the sealing operation rod penetrates a retaining plate in the water sampling tube, and the lower end of the sealing operation rod is movably connected with a seal piston in the transition tube. The invention also discloses a sampling method using the sampling device.

Description

technical field [0001] The invention relates to a field investigation experiment sampling device in the field of water environment engineering, in particular to a novel columnar water sample and sediment dual-purpose sampler and a sampling method applicable to various water environments such as wetlands, rivers, and lakes. Background technique [0002] The water environment is an inseparable part of the natural environment and has irreplaceable significance for the survival and development of human beings. A large amount of waste produced by human activities is discharged into rivers, rivers, lakes and other water bodies. The pollutants exceed the environmental capacity and self-purification capacity of the water body, deteriorating the water quality and destroying the water environment, resulting in water pollution, eutrophication, and further deterioration of fresh water resources. serious consequences such as shortages. People have also begun to strengthen the scientific...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of water sample-bottom mud combined sampler and its sampling method for overcoming the difficulties in the process of water samples and bottom mud sampling in the prior art and the defects of water samples and bottom mud samplers. The method has the advantages of simple structure, convenient operation, little disturbance to sediment samples, complete and continuous, can take water samples and mud samples of different layers and depths, and has the function of preserving samples

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