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Soil heavy metal layered treatment method

A heavy metal and soil technology, applied in the field of contaminated soil treatment, can solve the problems of shallow treatment depth, reduced treatment effect, uneven distribution of treatment agents, etc., and achieve the effect of improving the effect

Active Publication Date: 2020-08-04
中地山水(北京)环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing soil treatment methods are mainly by mixing the soil treatment agent with the contaminated soil and then laying it directly on the plot to be treated, or directly spraying or pouring the liquid treatment agent on the surface of the plot with treatment; in the above methods, all will be due to The uneven distribution of the treatment agent and the shallow treatment depth reduce the treatment effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as Figure 2~3As shown, the soil heavy metal stratified management device in the method of the present invention comprises a car body 10; at least two excavating and transporting plows 20, which are arranged side by side and spaced below the car body, and the two excavating and transporting plows are provided with pointed The arc-shaped metal sheet body, and the tail end of the arc-shaped metal sheet body is wound into a cylindrical shape to form a conveying channel in the axial direction of the excavating conveying plow; through the rotating shaft 201, at least two excavating conveying plows are driven upward as a whole Or rotate downwards to adjust the relative height between its tip and the ground; at least two spiral conveying cylinders 30, one end of which is connected to the tail end of the arc-shaped metal sheet body, and the other end of the spiral conveying cylinder is inclined toward the car body. The top is extended; the mixing box 40 is arranged on the ...

Embodiment 2

[0049] A method for stratified management of soil heavy metals, comprising the following steps:

[0050] Step 1: Digging the land to be processed deeply, the depth of digging is 0.6m;

[0051] Step 2, using at least two excavating and conveying plows of the soil heavy metal layered treatment device to dig deep strip trenches at a certain distance, and pour a certain amount of heavy metal treatment liquid through at least two nozzles, and remove the excavated soil from the strip trenches. The soil and the heavy metal control composition are mixed according to the ratio of mass ratio 11:2 to obtain a mixture, which is set aside;

[0052] Step 3, using a spreader to spread the mixture on the flat ground;

[0053] Step 4, using the leveling component of the soil heavy metal layered treatment device to bury the strip trench and level the ground;

[0054] Step 5, in the direction of travel perpendicular to the step 2 of the soil heavy metal layered treatment device, repeat steps 2...

Embodiment 3

[0062] A method for stratified management of soil heavy metals, comprising the following steps:

[0063] Step 1, deep digging of the land to be processed, the depth of digging is 0.65-0.7m;

[0064] Step 2, using at least two excavating and conveying plows of the soil heavy metal layered treatment device to dig deep strip trenches at a certain distance, and pour a certain amount of heavy metal treatment liquid through at least two nozzles, and remove the excavated soil from the strip trenches. The soil and the heavy metal control composition are mixed according to the ratio of 11:3 by mass to obtain a mixture, which is set aside;

[0065] Step 3, using a spreader to spread the mixture on the flat ground;

[0066] Step 4, using the leveling component of the soil heavy metal layered treatment device to bury the strip trench and level the ground;

[0067] Step 5, in the direction of travel perpendicular to the step 2 of the soil heavy metal layered treatment device, repeat step...

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Abstract

The invention discloses a soil heavy metal layered treatment method. The method comprises the following steps: deeply ploughing a to-be-treated land parcel; deeply digging strip-shaped ditches at certain intervals by adopting at least two digging conveying ploughs of a soil heavy metal layered treatment device, spraying a certain amount of heavy metal treatment liquid through at least two nozzles,and mixing soil dug out of the strip-shaped ditches with a heavy metal treatment composition to obtain a mixture; spreading the mixture on leveled ground by adopting a distributor; burying the strip-shaped ditches and leveling the ground by adopting a leveling assembly of the soil heavy metal layered treatment device; and in the advancing direction perpendicular to the soil heavy metal layered treatment device in the second step, repeating the second step to the fourth step again so as to deeply dig the strip-shaped ditches in the to-be-treated land parcel in a net-shaped mode and spraying the heavy metal treatment liquid into the to-be-treated land parcel. According to the soil heavy metal layered treatment method, on the basis of the soil heavy metal layered treatment device, the properheavy metal treatment liquid and the proper heavy metal treatment composition are provided, and the soil treatment effect is further improved.

Description

technical field [0001] The invention relates to the technical field of contaminated soil treatment, in particular to a layered treatment method for soil heavy metals. Background technique [0002] Soil heavy metal pollution refers to the addition of metals to the soil due to human activities, mainly mercury, arsenic, lead, chromium, cadmium, etc. These heavy metals pollute the soil, causing the heavy metals in the soil to be significantly higher than the original content, and causing deterioration of the quality of the ecological environment Soil heavy metal pollution not only reduces soil productivity and reduces food production, but also accumulates in plants and animals and enters the food chain, or enters the human respiratory tract through polluted air, and interacts strongly with proteins and enzymes after entering the human body , make them inactive, and may also accumulate in some organs of the human body and endanger health. [0003] Existing soil treatment methods...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/02A01B79/02
CPCA01B79/02B09C1/02
Inventor 尤宝旺
Owner 中地山水(北京)环境科技有限公司
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