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Integrated apparatus for researching sediment sampling and laminated gradient

A sediment and gradient technology, applied in the direction of material inspection products, soil material testing, etc., can solve the problems of large disturbances and the inability to carry out real-time and rapid monitoring of sediments, and achieve the maintenance of original properties, non-disturbance observation and sampling, Reduce the effects of human disturbance

Inactive Publication Date: 2009-05-27
ZHEJIANG UNIV
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Problems solved by technology

On these devices, if layered sampling of sediments is to be carried out, the entire experimental system will be greatly disturbed, and layered research is basically placed in the last step of the experiment. Therefore, it is impossible to carry out sediment sampling on these devices. Real-time and fast monitoring

Method used

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  • Integrated apparatus for researching sediment sampling and laminated gradient

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Embodiment 1

[0017] Embodiment 1: see figure 1 , The device consists of six parts: an integrated tube for sampling and layered gradient research, a constant temperature lighting system, an inflow and outflow water exchange system, a dissolved oxygen control system, an online monitoring system, and a hydrodynamic disturbance system.

[0018] ① The main material of the integrated tube 28 is plexiglass, with an aluminum bayonet 17 on the top, which can be directly connected to the sampler. The samples obtained from the site can include the overlying water body 20 and sediment 24 . A sediment sampling hole 26 is arranged every 50 mm from the bottom, and the sampling hole is threaded, and is sealed with a screw 27 of the same aperture when not sampling. The upper part of the integrated pipe 28 is provided with a water inlet and outlet, the water inlet 22 is located above the liquid level of the overlying water 20, and the water outlet 19 is located at 1 cm above the water-sediment 24 interface;...

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Abstract

The invention provides an integrated device for sampling and layered-gradient research of lake or stream sediments, mainly comprising a sampling and layered-gradient research integrated tube, a constant-temperature lighting system, an exchange system for inlet water and outlet water, a dissolved oxygen control system, an online monitoring system, and a hydropower disturbance system. The invention has the advantages that the sampling tube and the layered-gradient research device are integrated into a whole, thus reducing the artificial disturbance as much as possible to keep the original characters of overlying water and sediments; and the real-time, layered, and non-disturbance observation and sampling can be realized by using the sediment simulator. The device of the invention can be applicable to the research on the change rules of physicochemical characteristics and biological properties of sediments and overlying water in various layers under the condition that the aquatic environment, like simulation temperature, light irradiation, and water body exchange, varies.

Description

technical field [0001] The invention relates to an integrated device for sediment sampling and layered gradient research, in particular to a lake or river sediment columnar sampling and layered gradient research simulation device for scientific research and protection of water environment. Background technique [0002] Lake sediments are the final destination of material transport in the watershed, and are the reservoirs of pollutants. In recent years, with the control of external pollution input, the role of sediments as an internal source of water environmental pollution has become more prominent. The migration and transformation of nutrients and pollutants in sediments are closely related to the depth of sediments. The physical and chemical properties and microbial properties of sediments at different depths are very different, so the layered study of sediments is very important. [0003] At present, most of the existing sediment stratification studies are limited to qual...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 楼莉萍钱易超陈英旭
Owner ZHEJIANG UNIV
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