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Method for repairing ammonia nitrogen and sulfate radical pollution of ionic storage yard

An ionic and sulfate technology, applied in the field of environmental management, can solve the problems of vegetation destruction, unstable soil in the yard, gully and other problems, and achieve the effect of reducing mobility.

Active Publication Date: 2021-02-02
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, because the ore leaching agent in the stockyard cannot be effectively removed, the surface charges of the soil particles in the stockyard converge, and the electric double layer disappears, resulting in the instability of the stockyard soil, and gullies are easy to form in the rainstorm season, and with collapse events, the surface recovers The vegetation is also destroyed

Method used

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  • Method for repairing ammonia nitrogen and sulfate radical pollution of ionic storage yard
  • Method for repairing ammonia nitrogen and sulfate radical pollution of ionic storage yard
  • Method for repairing ammonia nitrogen and sulfate radical pollution of ionic storage yard

Examples

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Effect test

Embodiment 1

[0047] The embodiment of the present invention provides a method for repairing ammonia nitrogen and sulfate root pollution in ionic stockyards,

[0048] Include the following steps:

[0049] (1) Build a new mound

[0050] Transport the polluted soil from the ion storage yard to the level ground, pile it up in a layer of 30cm after crushing, and keep the soil bulk density at 1.3g / cm 3 ;

[0051] (2) Underlying base construction

[0052] Stack and level the broken polluted soil, apply lime, and adjust the soil pH to 6.6;

[0053] (3) Bottom nutrient construction

[0054] Apply sulfate-reducing bacteria that have been isolated or domesticated and adapted to the southern ion-type rare earth mining area to the bottom layer that has been limed. The application standard is 16g of powder per cubic soil, diluted 500 times, and 0.5% of composted decomposed livestock and poultry manure is applied at the same time. , and covered with 80cm*80cm*0.1mm biodegradable plastic film;

[00...

Embodiment 2

[0066] A method for repairing ammonia nitrogen and sulfate root pollution in ionic storage yards, comprising the following steps:

[0067] (1) Build a new mound

[0068] Transport the polluted soil from the ion storage yard to the flat land, pile it up in a layer of 30cm after crushing, and keep the soil bulk density at 1.5g / cm 3 ;

[0069] (2) Underlying base construction

[0070] Pile and level the broken polluted soil, apply lime, and adjust the soil pH to 7.0;

[0071] (3) Bottom nutrient construction

[0072] Apply sulfate-reducing bacteria that have been isolated or domesticated and adapted to the southern ion-type rare earth mining area to the bottom layer that has been limed. The application standard is 18g powder per cubic soil, diluted 500 times, and 0.2% composted decomposed livestock and poultry are applied at the same time. feces, and covered with 80cm*80cm*0.2mm biodegradable plastic film;

[0073] (4) Middle base construction

[0074] Continue to stack the...

Embodiment 3

[0084] A method for remediating ammonia nitrogen and sulfate root pollution in ionic storage yards,

[0085] Include the following steps:

[0086] (1) Build a new mound

[0087] Transport the polluted soil from the ion storage yard to the flat land, pile it up in a layer of 30cm after crushing, and keep the soil bulk density at 1.4g / cm 3 ;

[0088] (2) Underlying base construction

[0089] Stack and level the broken polluted soil, apply lime, and adjust the soil pH to 7.8;

[0090] (3) Bottom nutrient construction

[0091] Apply high-efficiency sulfate-reducing bacteria isolated and adapted to southern ion-type rare earth mining areas to the limed bottom layer. The application standard is 20g of powder per cubic soil, diluted 500 times, and 0.15% of composted and decomposed livestock and poultry manure is applied at the same time. And covered with 100cm*100cm*0.1mm biodegradable plastic film;

[0092] (4) Middle base construction

[0093] Continue to stack the broken po...

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Abstract

The invention discloses a method for repairing ammonia nitrogen and sulfate radical pollution of an ionic storage yard. The method comprises the following steps of (1) constructing a new mound; (2) constructing a bottom-layer substrate; (3) constructing bottom-layer nutrition; (4) constructing a middle-layer substrate; (5) constructing middle-layer nutrition; (6) constructing an upper-layer substrate; (7) constructing upper-layer nutrition; and (8) carrying out vegetation construction. Nitrate radicals, ammonia nitrogen and sulfate radicals of the storage yard are fixed through inorganic and organic stabilizing materials, mobility and mobility to the external environment are reduced, a mound body is piled in three layers, repairing microbial inoculants with different functions and matchedauxiliary materials of the repairing microbial inoculants are applied in a layered mode, release of nitrate, ammonia nitrogen and sulfate of the ionic rare earth tailing storage yard is effectively controlled, grass seeds capable of rapidly germinating and growing in the storage yard are sown on the surface layer, so that the whole soil body of the storage yard tends to be stable, and the effectsof pollution control, soil body stability and ecological function recovery integrated restoration are achieved.

Description

technical field [0001] The invention relates to the technical field of environmental treatment, in particular to a method for repairing ammonia nitrogen and sulfate root pollution in ionic stockyards. Background technique [0002] Ionic rare earth ores are important strategic resources in my country, mainly distributed in Jiangxi, Guangdong, Fujian and other provinces in the south, among which Jiangxi and Gannan were mined the earliest and have the largest amount of mining. The ionic rare earth resources in southern Jiangxi have the characteristics of large reserves, wide distribution, high content of medium and heavy rare earths, good proportioning, excellent mining and smelting performance, and low radioactive activity; their resource mining began in the 1970s. In the past 20 years, the rare earth resources in southern Jiangxi have suffered a large number of illegal mining, and the topsoil and the regolith containing rare earth resources have been stripped. Through the "Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G22/00A01G22/40B09C1/10
CPCA01B79/02A01G22/00A01G22/40B09C1/10
Inventor 韦朝阳杨芬张萍
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS