Device for measuring electric conductivity, and real-time monitoring electrical parameter change in electric osmosis process in polluted soil

Abstract

The present invention discloses a device for measuring electric conductivity, and real-time monitoring electrical parameter change in electric osmosis process in polluted soil. The device comprises a computer, a data collection system, an organic glass cylinder, a program controlled power box, a TDR 100 tester, a temperature detection module, a voltage detection module, a current detection module, an LAQUA electric conductivity tester, an electronic scale and a filtering collection bottle, wherein a metal tube is arranged on the axle wire of the organic glass cylinder to be used as a negative pole, the inner wall of the organic glass cylinder is wrapped with EKG geotechnical cloth to be used as a positive pole; small holes are formed in the inner wall of the metal tube; the outer layer of the metal tube is wrapped with geotechnical cloth; electric osmosis drainage water enters the metal tube after passing through the geotechnical cloth and enters the filtering collection bottle by a water drainage guide pipe after passing thorough drain holes in the bottom of the organic glass cylinder; three temperature sensors are inserted into negative pole soil, positive pole soil and soil between the negative pole soil and the positive pole soil. In the device, the computer is used for performing unified management on working states of node devices under the date collection system, so that the change rule of electrical parameters can be studied in a highly effective manner, and the measurement of electric conductivity is relatively accurate and effective.

Description

technical field [0001] The invention belongs to the field of indoor polluted soil electrical parameter testing and collection test instruments, and relates to a real-time monitoring device for polluted soil electrical conductivity measurement and electroosmotic process electrical parameter changes. Background technique [0002] With the accelerated development of urbanization, human life has gradually had a greater and greater impact on the environment. Domestic garbage, chemical industry, sewage irrigation, etc. have all had a certain impact on the soil. These polluted soil foundations have been developed and used , its electroosmotic reinforcement characteristics are significantly different from ordinary soil. The ion composition in polluted soil is relatively complex, often containing some heavy metal ions, and the migration of heavy metal ions will have a greater impact on the surrounding groundwater and soil. [0003] The electrical properties of soil polluted by heavy...

AI Technical Summary

Problems solved by technology

Existing devices for measuring soil conductivity usually use electrode plates to apply voltage to a sample of the size of a ring knife, and then measure the influence of temperature changes on electrical properties such as soil conductivity at different temperatures. This method is in operation During the process, the electrode plate will cause greater disturbance to the soil, and the insulation of the device around the soil sample will also have a greater impact on the test results

In addition, during the electro-osmotic drainage reinforcement test of contaminated soil, the change rules of electrical parameters such as conductivity are relatively complicated. Although parameters such as voltage and current can be monitored in real time, the measurement of conductivity parameters depends on the formula method Derivation or conductivity sensor, the result of formula derivation is often inaccurate, and the conductivity sensor is difficult to arrange reasonably during the electroosmosis process. At present, there is no suitable device that can be used to monitor the soil conductivity and porosity in the process of electroosmosis test of polluted soil in real time. Changes in water conductivity, temperature and other basic electrical parameters, so the present invention provides a test device and method that can measure conductivity and monitor changes in conductivity and other parameters in the process of electroosmosis, laying a solid foundation for the study of electrical characteristics of polluted soil. Base

Images