Method for detecting solution leaching and groundwater pollution scope of acid in-situ leaching of uranium

Abstract

The invention provides a method for detecting a solution leaching scope and a groundwater pollution scope of acid in-situ leaching of uranium. The method comprises the steps of: (a) distributing measuring lines in a detecting area and setting measuring points on the measuring lines; (b) transmitting signals of different frequencies through a transmitter, receiving signals of electric field and magnetic field which are coupled via the ground through a receiver, and converting the signals into collection data after the signals are subjected to calibration of scale values; (c) sequentially subjecting the collected date to curve smoothing, near field correction, one-dimensional inversion, two-dimensional inversion and electric property geological integrated interpretation to form a geophysical inversion result and a geological interpretation map of every measuring line; (d) subjecting the detecting area to three-dimensional geological modeling and subjecting the model to slicing display of different depths; and (e) combined with physical property data of the detecting target area, obtaining the solution leaching scope and the groundwater pollution scope of the acid in-situ leaching of uranium and the points where leakage occurs. The method for detecting the solution leaching scope and the groundwater pollution scope of the acid in-situ leaching of uranium is quick, economical, effective and simple to operate, and does not need constructing monitoring well and sampling analysis.

Description

technical field [0001] The invention belongs to the field of detection of uranium by in-situ leaching and groundwater pollution, in particular a method for detecting the leaching range of uranium in-situ leaching and the pollution range of groundwater by a controlled source audio frequency magnetotelluric sounding (CSAMT). Background technique [0002] The traditional detection of uranium leaching range and groundwater pollution range in in-situ leaching mining is through sampling and analysis of monitoring wells. Due to the inhomogeneity of the formation and the uncertainty of the hydrogeological parameters, the leaching range and groundwater pollution range cannot be accurately determined in advance, so the location, depth and number of monitoring wells used to detect the leaching range and groundwater pollution range cannot be accurately determined. Sampling and analysis through monitoring wells not only requires the construction of enough monitoring wells and regular sam...

AI Technical Summary

Problems solved by technology

Due to the inhomogeneity of the formation and the uncertainty of hydrogeological parameters, the leaching range and the groundwater pollution range cannot be accurately determined in advance, so the location, depth and number of monitoring wells used to detect the leaching range and groundwater pollution range cannot be accurately determined

Sampling and analysis through monitoring wells not only requires the construction of enough monitoring wells and regular sampling and analysis, which is time-consuming, labor-intensive, costly, and professionally demanding, but also because the migrating groundwater partially contains components with high background, so that sometimes what is detected is not the real immersion fluid dispersion

At present, there is no effective method to detect the extent of uranium leaching and groundwater pollution in acid in-situ leaching

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