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.
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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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