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 in-situ remediation technology for groundwater containing uranium and high nitrate and sulfate content at extremely low pH is still in the laboratory research stage. Based on the above technical problems, this patent provides a tube to simulate in-situ biological Restoration device and method thereof

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