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Experimental device for measuring in-situ layered element of soil and sediments

A technology of element determination and experimental device, which is applied in the direction of soil material testing, material inspection products, etc., can solve problems such as difficult to preserve the state of soil or sediment, and difference in element adsorption capacity, and achieve batch determination, convenient operation, and easy reuse Effect

Inactive Publication Date: 2017-07-14
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The current soil phosphorus determination method is to dig soil or sediment samples at the sampling site, and then take them back to the laboratory for measurement. After a series of experimental steps, a solution containing nutrients or heavy metals is obtained. It is difficult to preserve the original soil or sediment. state, and its adsorption capacity for elements also differs

Method used

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  • Experimental device for measuring in-situ layered element of soil and sediments
  • Experimental device for measuring in-situ layered element of soil and sediments
  • Experimental device for measuring in-situ layered element of soil and sediments

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Embodiment

[0024] The experimental device of this embodiment includes a sleeve 1 and its base 7. The top of the sleeve 1 is provided with a water injection port 2 and a number of taps connected to the water tap 4 through the base 7 are provided on the side for adding to the sleeve 1. The known concentration solution outlet 3 for measuring the adsorption potential of elements in each layer of the soil, the shape of the sleeve 1 is cylindrical, and the sleeve 1 is a plexiglass tube with a hollow tubular structure with a closed top and an open bottom; by inserting the sleeve 1 into Fill the soil or sediment with undisturbed soil, take it out and install the faucet 4 and the base 7, add the element solution of known concentration from the water injection port 2, and analyze the phosphorus adsorption of soil at different depths by measuring the concentration difference of the solution discharged from each water outlet 3 Potential; the water outlet 3 has a piston of corresponding size, the wate...

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Abstract

The invention discloses an experimental device for measuring in-situ layered elements of soil and sediments. The device comprises a sleeve and a base, the top of the sleeve is provided with a water injection port, the side of the sleeve is provided with a plurality of water outlets communicated with a faucet through the base, the base is movably connected to the faucet through a water outlet pipe extending to the environment and a base clamping slot, the faucet comprises a pipe body and a faucet handle of which the top is movably connected by screws, and the side of the pipe body is provided with a faucet water outlet. Compared with the existing the experimental device, the experimental device provided by the invention can realize accurate, efficient and low-cost soil and sediment element adsorption capacity stratification measurement in situ, can realize sampling in different positions of a coastal area in different seasons, can timely know dynamic situation of adsorption potential of various soil and sediment element layers in a coastal area and realizes management and service of a basin water environment.

Description

technical field [0001] The invention relates to the field of soil experiment equipment, in particular to an experiment device for in-situ layered element determination of soil and sediment. Background technique [0002] The coastal zone refers to the area on both sides of the river-land junction until the influence of the river disappears. The coastal zone coordinates the horizontal and vertical material and energy flow of the river by filtering and retaining sediment, water and nutrients, etc., thus reducing the degree of soil erosion, stabilizing channels, protecting biological habitats and improving water quality. all play an important role. The interception and removal of nutrients and heavy metals in surface runoff and groundwater by the vegetation buffer zone on the shore of rivers and lakes is a main function of reducing water pollution in the watershed. As a barrier for the migration of nutrient elements and heavy metals to water bodies, the littoral zone acts as a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 袁旭音汪静娴徐倩韩磊
Owner HOHAI UNIV
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