Tidal wetland soil interstitial water in-situ layered collecting and filtering device

A filter device and interstitial water technology, which is applied in the direction of sampling device and test sample preparation, etc., can solve the problems affecting the immediacy and effectiveness of the measurement results, the lack of in-situ collection devices in the field, and the inapplicability of long-term positioning observation, etc., to achieve The sampling results are safe and reliable, the work continuity is strong, and the cost performance is excellent.

Pending Publication Date: 2017-10-24
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing soil interstitial water collection devices can also collect interstitial water under certain conditions, there are still many defects and deficiencies: 1) Most of them are used indoors, and there is a lack of an in-situ collection device in the field; 2) Most of them are single-layer Or multi-layer mixed sampling, lack of accurate sampling devices for different soil layers; 3) The collection process is more complicated, with many restrictions, long operation time, and inconvenient field use; 4) The sampling process will interfere with the in-situ environment, Water samples are easily polluted, the sample is turbid, and the sampling accuracy is not high; 5) There is no in-situ filter device, which will affect the immediacy and effectiveness of the measurement results; 6) Most of them are disposable or short-term use, not suitable for long-term positioning observation
At present, there is no method and device for in-situ collection of soil interstitial water specifically for the characteristics of estuary tidal wetlands

Method used

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  • Tidal wetland soil interstitial water in-situ layered collecting and filtering device
  • Tidal wetland soil interstitial water in-situ layered collecting and filtering device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1: Layered collection and filtration of soil interstitial water in tidal wetlands before high tide

[0039] Since the present embodiment simulates the situation of flooding without tidal water, the aboveground part of the water sample extraction pipe 33 and the air inlet pipe 27 are plugged and put into the corresponding storage pipe 28 and the top cover is tightly closed.

[0040] When sampling, place the device embedding system 1 in the soil by pressing down on the handle 112, then rotate the sleeve 11 to separate the first slot 111 from the second slot 121, pull out the sleeve 11, and the plug 12 remains in the soil In the process, the water sample layered collection system 2 is contacted with the soil; then the corresponding top cover and the rubber plug are opened, and the aboveground part of the water sample extraction pipe 33 is connected with the water pump 32 through the three-way valve 31, and the interstitial water sample is extracted; The three-way v...

Embodiment 2

[0042] Example 2: Layered collection and filtration of soil interstitial water in tidal wetlands during high tide

[0043] Because the present embodiment simulates the situation of tidal flooding, the aboveground part of the water sample extraction pipe 33 and the air inlet pipe 27 are plugged and exposed to the soil surface. During sampling, find the buoy 5 floating on the upper part of the tidal water, pull out the aboveground part of the water sample extraction pipe 33 and the rubber cork of the air intake pipe 27, and connect the aboveground part of the water sample extraction pipe 33 with the water pump 32 through the three-way valve 31 , extract the interstitial water sample; adjust the three-way valve 31 and squeeze the water pump 32, the interstitial water sample enters the pre-marked sample bottle 4 through the filter 35 and the outlet pipe 34, and the sample collection and filtration are completed.

[0044] After the soil interstitial water sample is collected, the r...

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Abstract

The invention discloses a tidal wetland soil interstitial water in-situ layered collecting and filtering device, which comprises an equipment embedding system, a water sample layered collecting system, and a water sample pumping and collecting system. The provided collecting and filtering device guarantees the efficiency and quality of wild in-situ soil interstitial water sample collection, has the characteristics of simple manufacturing, low cost, and high performance/cost ratio, and assists the researchers and environmental scientists to carry out wild in-situ soil interstitial water sample layered collection and filtering.

Description

technical field [0001] The invention relates to the technical field of soil interstitial water collection and filtration devices, in particular to an in-situ layered collection and filtration device for soil interstitial water in tidal wetlands. Background technique [0002] Coastal estuary wetlands are transitional ecosystems with high biological productivity and redox capacity between marine and terrestrial ecosystems. The reaches of rivers that reach the sea include supratidal wetlands and intertidal wetlands. Affected by ocean tides, coastal estuary wetlands not only show periodic alternating changes of exposure and immersion, but also in the profile of tidal flat wetlands, the tidal immersion time of different tidal flats varies greatly (high tidal beach < middle tidal beach < low tidal beach), The physical and chemical properties of the estuary tidal flat wetland soil and water show a unique variation pattern. In addition, due to the special geographical locati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/16G01N1/34
CPCG01N1/16G01N1/34
Inventor 胡敏杰黄佳芳仝川
Owner FUJIAN NORMAL UNIV
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