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Method for reducing outward output of pollutants from ionic type rare earth ore mining site

A technology for ionic rare earth minerals and pollutants, which can be used in land preparation methods, botanical equipment and methods, plant cultivation, etc. The effect of slope collapse

Inactive Publication Date: 2017-05-17
广东中联兴环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the serious pollution of ammonia nitrogen has caused great damage to the water ecological environment.

Method used

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  • Method for reducing outward output of pollutants from ionic type rare earth ore mining site
  • Method for reducing outward output of pollutants from ionic type rare earth ore mining site
  • Method for reducing outward output of pollutants from ionic type rare earth ore mining site

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Effect test

Embodiment 1

[0091] see figure 1 and figure 2 A schematic structural diagram of the system obtained by reducing the external output of pollutants from the in-situ leaching mining trace of ion-type rare earth ores is shown. , slope 2, slope toe 3, plane edge 4, ridge 5, diversion channel 6, field 7, diversion channel 8, reservoir 9.

[0092] This embodiment is mainly aimed at reducing the export of pollutants from ionic rare earth ore in-situ leaching mining traces for small terraced mining traces. The terraced mining traces with a plane width of about 8m and a length of 35m are example. The method for reducing the external output of pollutants from the in-situ leaching of ionic rare earth ore mining traces in this embodiment can be implemented through the following steps:

[0093] (1) Utilize the large-scale loader to organize the plane ground of the mining site to form a gentle slope 1, and the direction of the gentle slope 1 is inclined from the edge 4 of the plane ground opposite to...

Embodiment 2

[0109] see Figure 4 and Figure 5 A schematic structural diagram of a system obtained by a method for reducing the external output of pollutants from the in-situ leaching mining traces of ion-type rare earth ores is shown, and the system for reducing the external output of pollutants from the in-situ leaching mining traces of ion-type rare earth ores includes a gentle slope 10 , diversion canal 11, field block 12, diversion ditch 13, reservoir 14, grit chamber 15, slope 16, slope toe 17, slope edge 18 and field ridge 19. This embodiment is mainly aimed at the measures taken to reduce the export of pollutants from in-situ leaching mining sites of ion-type rare earth ores for large-area flat land. Take the terraced mining land with a width of about 20m and a length of 75m as an example. The method for reducing the external output of pollutants from the in-situ leaching of ionic rare earth ore mining traces in this embodiment can be implemented through the following steps:

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Abstract

The invention discloses a method for reducing outward output of pollutants from an ionic type rare earth ore mining site. According to the method, rainwater infiltration is reduced through the measures of land leveling, water storage system building, vegetation recovery and the like, and therefore leaching of soil pollutants is reduced. In addition, a sprinkling irrigation system is built and used for vegetation irrigation, the seepage of the pollutants along with underground runoff (formed by rainwater infiltration) is reduced, and the probability that the pollutants enter the external environment along with overland runoff is reduced. In addition, the regulation and storage capacity of the water storage system is guaranteed through an irregular and non-quantitative irrigation mode to meet the water storage requirement of next rainfall.

Description

technical field [0001] The invention relates to a method for reducing the export of soil pollutants, in particular to a method for reducing the export of pollutants from the mining traces of ion-type rare earth mines. Background technique [0002] The electrolyte solution used in the in-situ leaching mining method of rare earth ores is usually ammonium sulfate. In-situ leaching is to inject high-concentration ammonium sulfate leaching agent into the ore body through the liquid injection hole. The leaching dose is large and the leaching time is long. In the rare earth mining process, due to the leakage of the anti-seepage layer and the imperfect collection system, a large amount of nitrides will enter the soil in the mining area during the leaching mining process, resulting in the continuous accumulation of nitrides in the soil around the rare earth mine. With the accumulation of nitrogen in the soil, it gradually migrates and transforms, and the residual ore leaching agent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G25/00A01G1/00E03F5/00E03F5/10
CPCA01B79/02A01G22/00A01G25/00E03F5/00E03F5/10Y02P60/20
Inventor 黄诗婷梁慧芳王海波陈文韬吴国浩
Owner 广东中联兴环保科技有限公司
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