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Induced polarization method for heavy metal sewage detection

A technology of induced polarization and heavy metals, applied in the field of environmental geophysical exploration, can solve the problems of difficult field wiring, low work efficiency, too large distance between positive and negative electrodes, and achieve stable and reliable detection results, simple structure and reasonable design. Effect

Pending Publication Date: 2019-07-12
GUILIN UNIVERSITY OF TECHNOLOGY
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Problems solved by technology

Solve the problems existing in the existing indirect induced polarization exploration, such as too large positive and negative electrode spacing, difficult field wiring, low work efficiency, complex interference signals, low detection accuracy, high cost, and low efficiency

Method used

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  • Induced polarization method for heavy metal sewage detection
  • Induced polarization method for heavy metal sewage detection
  • Induced polarization method for heavy metal sewage detection

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Effect test

Embodiment

[0067] Use the excited polarization method of contact type power supply of the present invention, planar measuring line gradient measurement mode to such as image 3 When detecting the heavy metal-contaminated water and soil (pre-buried) soil tank model shown, firstly design a circular suspended contact type excitation polarization device for detecting heavy metal sewage; determine the starting position L1 of the detection point and the detection range L2, and detect at a distance At the point horizontal distance L1, a circular series structure current emission positive electrode 6 and a current emission negative electrode 5 at the horizontal distance (L1+L2+L3) of 3 to 5 times the exploration depth h (L1+L2+L3) are arranged in the heavy metal sewage pool 7, in the detection of heavy metal sewage The polarizability receiving electrode 8 is determined on the other side of the excitation polarization device, the distance between the polarizability receiving point 8 and the curren...

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Abstract

The invention belongs to the field of environmental geophysical exploration technologies and discloses an induced polarization method for heavy metal sewage detection. According to the method, a current emission anode and a depth-exploring current emission cathode are arranged in a heavy metal sewage pool and located at a certain position in a transverse distance away from a detection point, a polarizability receiving point is determined at the other side of an induced polarization device for heavy metal sewage detection, and a non-polarization anode and a non-polarization cathode are symmetrically arranged at the left side and the right side of the polarizability receiving point; a current emission source, a constant current controller and an induced polarization instrument are connectedwith a power source, an induced polarization measurement mode is adopted, and detection at the detection point is performed; the polarizability is measured point by point in the moving process; and then plane and section measurement is performed till measurement of all detection points on a measuring line is completed. The measurement method is simple in structure, convenient to operate, reasonable in design, stable and reliable in detection result and capable of being widely applied to the induced polarization exploration work in industries, mine engineering and other heavy metal sewage treatment fields.

Description

technical field [0001] The invention belongs to the technical field of environmental geophysical exploration, and in particular relates to an induced polarization method for detecting heavy metal sewage. 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 from the treatment site to the surrounding soil, from the shallow lay...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08
CPCG01V3/08Y02A90/30
Inventor 李静和张玉净
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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