Pipe simulation in-situ bioremediation device and method thereof

Abstract

The invention relates to a pipe simulation in-situ bioremediation device. The device comprises an in-situ bioremediation test tube, an ex-situ treatment effluent adjusting tank connected with the in-situ bioremediation test tube and a high-position carbon source supply tank, the in-situ bioremediation test tube is internally and uniformly filled with simulated ore-bearing and water-bearing stratumore, and the two ends of the in-situ bioremediation test tube are blocked and provided with a plurality of sampling monitoring openings; the in-situ bioremediation method of the pipe simulation in-situ bioremediation device comprises the steps: S1, an in-situ remediation simulation test and S2, simulation research of a seepage field and a water chemical field in the in-situ remediation process. In-situ bioremediation is simulated through the pipe, technical support is provided for actual in-situ bioremediation of the in-situ leaching uranium mining underground water, in-situ bioremediation processing of the ore-bearing and water-bearing stratum underground water in the decommissioned mining area of in-situ leaching uranium mining through the industrial acid method is achieved, the economic cost is saved, and the in-situ bioremediation efficiency is also improved.

Description

technical field [0001] The invention relates to the research field of bioremediation of underground water in uranium mines, in particular to a pipe simulation in-situ bioremediation device and a method thereof. Background technique [0002] The 512 uranium deposit in the Yili Basin of Xinjiang is the first large-scale sandstone-type uranium deposit that successfully applied the acid in-situ leaching mining technology in my country. The old mining areas have been decommissioned one after another. Because the uranium water smelting process of acid in-situ leaching uses the mixture of adsorption tail liquid and eluent, and adjusts the pH with sulfuric acid, then injects it into the ore-bearing aquifer as a leaching solution. The leaching solution is adsorbed by resin, and the resin is saturated with NH 4 NO 3 Elutes as an eluent. Therefore, the leaching solution entering the ore-bearing aquifer has strong acidity (pH=1.0-2.0), and SO 4 2- and NO 3- The concentration is muc...

AI Technical Summary

Problems solved by technology

[0009] Judging from the available literature, there is no domestic report on the in-situ bioremediation technology for the removal of sulfate and nitrate and the reduction of uranium in uranium-contaminated waters under extremely acidic environmental conditions (pH<3.0)

[0010] It can be seen that the

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