Real-time in-situ collecting and monitoring device for interstitial water of lake and reservoir bottom mud

A collection device and monitoring device technology, which is applied to sampling devices, test water, signal transmission systems, etc., can solve the problems of easy blockage of sampling devices and easy mixing of collected water samples.
CN112816643AActive Publication Date: 2021-05-18CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHINESE RES ACAD OF ENVIRONMENTAL SCI
Publication Date
2021-05-18

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Abstract

The invention provides a real-time in-situ collecting and monitoring device for interstitial water of lake and reservoir bottom mud. The device comprises a cylinder body, wherein the cylinder body is internally provided with a collecting cavity, and the outer side opening of the collecting cavity is communicated with the outside of the cylinder body; a capillary tube bundle which is placed in the collection cavity, wherein an opening in one end of the capillary tube bundle faces the outside of the cylinder body; a liquid collecting bin which is communicated with an opening in the other end of the capillary tube bundle; a liquid extraction pipe which is communicated with the liquid collection bin, wherein a liquid extraction device is arranged on the liquid extraction pipe; and a propelling mechanism which is connected with the capillary tube bundle and drives the capillary tube bundle to move towards the outside of the cylinder body. When the in-situ collecting device is vertically inserted into the sediment until the in-situ collecting device is stable, the capillary tube bundle is pushed by the propelling device to move outwards, so that the capillary tube bundle can be flatly inserted into a sediment layer, the operation of absorbing interstitial water is further carried out, and the range of extracting the interstitial water can be concentrated at a relatively accurate point position.
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Description

technical field

[0001] The invention belongs to the technical field of sediment sample collection, and in particular relates to a device for real-time in-situ collection and monitoring of interstitial water in bottom mud of lakes and reservoirs. Background technique

[0002] Sediment is an important part of the water body, and the material exchange between the sediment-water interface has a very important impact on the water quality of the overlying water. Sediment interstitial water is the main medium for material exchange between sediments and water bodies. Studying the morphological composition of materials in interstitial water is of great significance for exploring the process of material migration and transformation at the lake sediment-water interface. When studying interstitial water, the most commonly used method is to complete the collection of sediment first, then sample the sediment in layers, and perform centrifugation and filtration on the layered sediment to s...

Claims

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