Method for applying humic acid to soil remediation

A technology of soil remediation and humic acid, which is applied in the field of soil remediation, can solve the problems of large dosage, slow effect of lead-contaminated soil, and high input cost, and achieve the effect of enhanced activity, rapid repair, and high economic benefits

Pending Publication Date: 2020-11-10
JINING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the above-mentioned defects of the prior art, the embodiments of the present invention provide a method for humic acid for soil remediation and its preparation process. The technical problem to be solved by the present invention is: the existing soil remediation agent is effective for lead-contaminated soil The effect of the repair is slow, the dose is large, and the input cost is high

Method used

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  • Method for applying humic acid to soil remediation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of humic acid is used for the method for soil remediation, comprises the following steps, step 1: select lead-contaminated soil, detect the available state lead content in the soil;

[0025] Step 2: Apply 0.75Kg of humic acid repair agent per square meter to the selected soil area and evenly spread it on the soil surface;

[0026] Step 3: After the soil is deeply plowed, cover it with a plastic film, and after 15 days, carry out the detection of the available lead content in the soil again;

[0027] Step 4: Comparing the two test results, if the reduction rate of soil effective content is greater than 20%, the humic acid remediation agent can be stopped and the soil should be closed for a rest period. Otherwise, repeat steps 2 and 3 until the effective state of lead in the soil The soil remediation process can be stopped after the decrease rate of the content and the soil effective state content measured for the first time is less than 20%.

[0028] The humic ac...

Embodiment 2

[0030] A kind of humic acid is used for the method for soil remediation, comprises the following steps, step 1: select lead-contaminated soil, detect the available state lead content in the soil;

[0031] Step 2: Apply 0.75Kg of humic acid repair agent per square meter to the selected soil area and evenly spread it on the soil surface;

[0032] Step 3: After the soil is deeply plowed, cover it with a plastic film, and after 15 days, carry out the detection of the available lead content in the soil again;

[0033] Step 4: Comparing the two test results, if the reduction rate of soil effective content is greater than 20%, the humic acid remediation agent can be stopped and the soil should be closed for a rest period. Otherwise, repeat steps 2 and 3 until the effective state of lead in the soil The soil remediation process can be stopped after the decrease rate of the content and the soil effective state content measured for the first time is less than 20%.

[0034] The humic ac...

Embodiment 3

[0036] A kind of humic acid is used for the method for soil remediation, comprises the following steps, step 1: select lead-contaminated soil, detect the available state lead content in the soil;

[0037] Step 2: Apply 0.75Kg of humic acid repair agent per square meter to the selected soil area and evenly spread it on the soil surface;

[0038] Step 3: After the soil is deeply plowed, cover it with a plastic film, and after 15 days, carry out the detection of the available lead content in the soil again;

[0039] Step 4: Comparing the two test results, if the reduction rate of soil effective content is greater than 20%, the humic acid remediation agent can be stopped and the soil should be closed for a rest period. Otherwise, repeat steps 2 and 3 until the effective state of lead in the soil The soil remediation process can be stopped after the decrease rate of the content and the soil effective state content measured for the first time is less than 20%.

[0040]The humic aci...

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Abstract

The invention discloses a method for applying humic acid to soil remediation, and particularly relates to the technical field of soil remediation, which comprises the following steps: 1, selecting lead-contaminated soil, and detecting the content of available lead in the soil; 2, uniformly spreading the humic acid repairing agent on the surface of the soil according to the dosage of 0.5-1.0 Kg ofhumic acid repairing agent to each square meter of the selected soil area; 3, after deep ploughing is conducted on the soil, covering the soil with a plastic film, and after 15 days, detecting the content of available lead in the soil again; and 4, comparing the two detection results, and stopping using the humic acid repairing agent when the effective state content reduction rate of the soil is greater than 20% to enter a soil tillage stopping and renovating period. According to the humic acid soil remediation agent and the formula composition thereof, the content of available lead in soil can be remarkably reduced, meanwhile, the content of organic matter is increased, the effect of several times of application of a common soil remediation agent can be achieved by adding a small amount of humic acid soil remediation agent, the use cost can be reduced, and large-scale application is facilitated.

Description

technical field [0001] The invention relates to the technical field of soil remediation, and more specifically, the invention relates to a method for using humic acid in soil remediation. Background technique [0002] Soil is not only an important part of the ecological environment, but also one of the main natural resources for human survival. Soil has a certain self-purification ability, but with the rapid development of the world economy, various types of heavy metals and other pollutants discharged in the process of human production and life It has seriously exceeded the self-purification ability of the soil itself, and heavy metals will continue to accumulate in the soil over time, affecting the normal growth of crops, and even enriching in the human body through food chains and other channels, endangering human health; [0003] Lead pollution refers to the phenomenon that lead is the main pollutant causing damage to the environment. In the process of manufacturing lead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08C09K17/32
CPCB09C1/08C09K17/32
Inventor 王贤卓金龙宋文路师艳秋王晓强
Owner JINING UNIV
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