Device for measuring salt concentration of saturated soil solution

Abstract

The invention relates to a device for measuring the saline concentration in saturated soil solution. The present invention is characterized in that the invention comprises a sealed soil bin, and the soil bin is filled with soil; a constant water tank is respectively arranged on the both sides of the soil bin, and a copper wire gauze and a sieve tray are arranged in the two constant water tank near to one side of the soil in sequence; a constant head water tank for controlling the differential pressure is respectively arranged above the two constant water tanks, the constant head water tank on the water inlet side is connected with a pure water storage barrel and a saline solution storage barrel in parallel through a constant flow pump and a reversing valve; a plurality of salinity sensors are embedded in the soil, a plurality of salinity sensors are connected on a plurality of saline concentration data collectors outside the soil by group; a data processor is connected with the data collector, and the data processor is connected with a computer. The operation of the invention is agility, precise dynamic monitoring can be performed for the salinity in the saturated soil solution, and the invention has wider application prospect.

Description

technical field [0001] The invention relates to a measuring device, in particular to a measuring device for real-time monitoring of the salt concentration in saturated soil solution. Background technique [0002] At present, the shortage of water resources and the pollution of water environment have become important factors restricting the development of society and economy. Heavy metals and salt in polluted water often enter the soil and groundwater through infiltration, which poses a serious threat to human health. The migration forms of these heavy metals and salts in groundwater are often complex, and the existing monitoring methods are difficult to quantitatively analyze their dynamic process. The main reasons are: 1. The complexity of the spatial structure of the surface medium leads to complex movement forms of groundwater; 2. Soluble substances (including heavy metals and salt) have physical, chemical and biochemical interactions with the medium; 3. Groundwater is bu...

AI Technical Summary

Problems solved by technology

The migration forms of these heavy metals and salts in groundwater are often complex, and the existing monitoring methods are difficult to quantitatively analyze their dynamic process. The main reasons are: 1. The complexity of the spatial structure of the surface medium leads to complex movement forms of groundwater; 2. Soluble substances (including heavy metals, salt) have physical, chemical and biochemical interactions with the medium; 3. Groundwater is buried under the ground and is not easy to monitor

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