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Device for in-situ collection of pore water and gas in sediments and wetland soil

A sediment and pore water technology, applied in the direction of measuring devices, sampling devices, sampling, etc., can solve problems such as inability to operate in situ, complex equipment, single function of the device, etc., and achieve simple and easy assembly, convenient portability, and high resolution Effect

Active Publication Date: 2020-07-10
NANJING UNIV OF INFORMATION SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a device for collecting pore water and gas in sediments and wetland soil in situ in order to solve the problems of existing devices with single function, complex equipment and inability to operate in situ

Method used

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  • Device for in-situ collection of pore water and gas in sediments and wetland soil
  • Device for in-situ collection of pore water and gas in sediments and wetland soil
  • Device for in-situ collection of pore water and gas in sediments and wetland soil

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] see figure 1 A device for in-situ collection of pore water and gas in sediment and wetland soil is shown, including several collection tubes 1, silicone tube 2, liquid sampling device 4, conical head 5 and cylindrical connector 6; see image 3, the collection pipe 1 comprises a pipe body 11, an interval platform 12, an internal thread 13, a sampling hole 14 and an external thread 15; The outer wall of the top of the 11 is fixed with a spacer platform 12, and the bottom of the pipe body 11 is provided with an external thread 15 that matches the internal thread 13. One side of the spacer platform 12 is provided with a through sampling hole 14, and one end of the sampling hole 14 is located at On the side wall of the pipe body 11, the other end of the sampling hole 14 is located on the outer wall of the interval platform 12, and the plurality of co...

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Abstract

The invention discloses a device for in-situ collection of pore water and gas in sediments and wetland soil. The device comprises a plurality of collection tubes, silicone tubes, a liquid sampling device, a conical head and a cylindrical connecting piece, the collection tube comprises a tube body, a spacing platform, an internal thread, a sampling hole and an external thread; internal threads arearranged on the inner side wall of the top of the pipe body, a spacing platform is fixedly arranged on the outer side wall of the top of the pipe body, external threads matched with the internal threads are arranged at the bottom of the pipe body, and a penetrating sampling hole is formed in one side of the spacing platform. The silicone tubes are fixedly arranged between the spacing platforms ofthe adjacent collecting tubes; the cylindrical connector is arranged at the upper part of the collection tube; the conical head is arranged at the lower part of the collecting tube; the liquid sampling device is arranged at the upper part of the cylindrical connecting piece. The device is a multifunctional device integrating in-situ collection, liquid collection and gas collection, the device is simple and easy to assemble, each assembly unit is light in weight and convenient to carry, the device can be well suitable for indoor and field sampling work, and the operation is simple and efficient.

Description

technical field [0001] The invention belongs to the technical field of pore water sampling, and in particular relates to a device for in-situ collection of pore water and gas in sediment and wetland soil. Background technique [0002] Through erosion, weathering, and transportation, the substances in the water body settle down to form substances, which are called sediments. Sediment can be regarded as an "indicator" of the degree of pollution of lake water. In some sudden pollution events of lakes, the sediment is not always the source of pollution, but may act as a "sink" or take on the function of "source-sink conversion" for pollutants on the sediment-water interface for buffering The degree of lake pollution and the distribution of the amount of pollutants in the media. In recent years, the problem of heavy metal pollution in lakes has been paid more and more attention. The concentration of heavy metals in sediments is much higher than that in water bodies, which serio...

Claims

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Application Information

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IPC IPC(8): G01N1/14G01N1/24
CPCG01N1/14G01N1/24G01N2001/1463G01N2001/242
Inventor 于志国陈一帆金宇斌王健健吕雪艳王寿鑫谢雨初
Owner NANJING UNIV OF INFORMATION SCI & TECH
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