A Method for Monitoring Heavy Metal Sewage Leakage Using Pre-embedded Measuring Electrode Induced Polarization Method

Abstract

The invention belongs to the technical field of environmental geophysical exploration, and discloses a method for monitoring the leakage of heavy metal sewage by the excited polarization method of pre-embedded measuring electrodes. The soil model of the leakage channel area and the main pollution area is pre-buried, and the excitation electrode for monitoring the leakage of heavy metal sewage is set. In the induced polarization device for monitoring the leakage of heavy metal sewage, the main pollution area and the sewage source area are connected by a leakage channel area, and the main pollution area is pre-embedded with a monitoring electrode belt perpendicular to the leakage direction, which is arranged at both ends of the monitoring electrode belt Power supply electrode belt, each monitoring electrode belt is equipped with a strip copper electrode; select the excitation polarization measurement mode, input the corresponding device parameters and power supply time, two monitoring electrodes one by one until the completion of all monitoring points on the monitoring electrode belt to measure the polarizability . The invention aims at the monitoring of the polluted water leakage area, and can fill the blank of accurate monitoring of the polluted water leakage.

Description

technical field [0001] The invention belongs to the technical field of environmental geophysical exploration, and in particular relates to a method for monitoring the leakage of heavy metal sewage by an induced polarization method using a pre-embedded measuring electrode. Background technique [0002] Currently, the closest prior art: [0003] With the rapid development of the economy, the pollution of heavy metal wastewater in mining areas and industrial sites has increased, and the problem of environmental pollution has become increasingly serious. The research on environmental pollution monitoring and comprehensive treatment of mining areas and industrial sites has attracted much attention in practical engineering and environmental geotechnical engineering. Research statistics show that in hundreds of heavily polluted enterprise land and surrounding soil treatment sites, the heavy metal pollution situation is extremely severe, and the scope of pollution gradually spreads ...

AI Technical Summary

Problems solved by technology

[0009] (1) Although great progress has been made in the change law of resistivity in experimental heavy metal polluted wastewater, the complex factors existing in the actual site can cause the above resistivity change, especially in distinguishing groundwater or saturated water soil from pollution sources, the resistivity method is usually powerless

[0010] The traditional induced polarization method has good advantages and application basis in the monitoring of polluted wastewater and polluted soil. Under the influence, the abnormal intensity of induced electricity is very weak; in addition, the monitoring environment usually has interference sources, and the monitoring accuracy is low

[0011] (2) The commonly used induced polarization observation system is a symmetrical four-stage device ground observation system. This induced polarization ground observation system can be used to indirectly measure the IP effect of the target body. The chemical effect has the disadvantages of difficult field wiring, low work efficiency, complex interference signals, and low detection accuracy.

[0014] (1) The monitoring environment of polluted waste water and polluted soil is intricate, and the interference signal strength is relatively high; under the comprehensive influence of various uncertain factors such as the size, orientation and intensity of the induced electric effect of the target pollutant, the abnormal intensity of the induced electric shock is very weak, lead to extremely limited accuracy of inferred interpretation

[0015] (2) The commonly used induced polarization observation system is a symmetrical four-level device ground observation system. The actual conditions of most monitoring sites cannot meet the above-mentioned observation system deployment requirements, which makes it more difficult to distinguish the weak IP anomaly signal and cannot meet the requirements Exploration needs

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