CN107321775A

CN107321775A - Soil remediation method containing heavy metal

Info

Publication number: CN107321775A
Application number: CN201710662585.7A
Authority: CN
Inventors: 郭婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2017-11-07

Abstract

The invention discloses a kind of soil remediation method containing heavy metal, comprise the following steps：1）The sample of part heavy metal soil is taken, then soil is placed on surface plate, the solid metal impurity and plastic contaminant among soil is removed, soil is placed among baking oven and dried, heavy metal in soil species and content of beary metal is then detected.The present invention is mixed by free of contamination soil and lower floor soil to be repaired by upper layer of soil is removed, can rapidly reduce the content of beary metal among soil, so as to reduce the content of heavy metal among soil, can adapt to the growth of plant；And by the plant of plantation, the heavy metal among soil can be effectively sponged, so as to reduce the content of heavy metal among soil；Which time cycle is short simultaneously, and the time for reducing heavy metal is shorter.

Description

Soil remediation method containing heavy metal

Technical field

The invention belongs to technical field of soil remediation, more particularly, to a kind of soil remediation method containing heavy metal.

Background technology

The heavy metal amount contained among the plantation of heavy metal soil meeting strong influence crops, the crops for causing plantation Very big, people can not eat；But during rehabilitating soil, it is desirable to reduce the content of beary metal cycle longer, it is impossible to more Quickly reduction.

The content of the invention

There is provided a kind of soil containing heavy metal of quick reduction heavy metal in order to overcome the deficiencies in the prior art by the present invention Restorative procedure.

To achieve these goals, the present invention uses following technical scheme：A kind of soil remediation method containing heavy metal, Comprise the following steps：

1）The sample of part heavy metal soil is taken, then soil is placed on surface plate, the solid gold among soil is removed Belong to impurity and plastic contaminant, soil is placed among baking oven and dried, then detect that heavy metal in soil species and heavy metal contain Amount；

2）Soil to be repaired is filtered, the solid metal and plastic contaminant in soil is filtered out；

3）Topsoil soil to be repaired is concentrated, the dell of 10 meters of depths is then excavated using excavator, be will focus on Soil together is filled among dell；

4）The soil to be repaired for transporting free of contamination soil and removing upper layer of soil is comprehensively mixed；Then planting plants are arrived Among the soil mixed.

The present invention is by upper layer of soil is removed, can rapidly reduce the content of beary metal among soil, pass through nothing Contaminated soil and lower floor soil to be repaired are mixed, and so as to reduce the content of heavy metal among soil, can adapt to The growth of plant；And by the plant of plantation, the heavy metal among soil can be effectively sponged, is worked as so as to reduce soil The content of middle heavy metal；Which time cycle is short simultaneously, and the time for reducing heavy metal is shorter.

Further, step 4）The middle preferred chicken coop grass of planted plant is planted；Chicken coop grass has extremely strong growth Ability, therefore, it is possible to quickly be grown among the soil containing heavy metal, so as to absorb the heavy metal among soil.

Further, farm manure is sprinkled by the chicken coop grass of plantation；By the farm manure sprinkled, it can effectively strengthen soil The fertility of earth, accelerates the growth of chicken coop grass, reduces the time of soil remediation.

In summary, the present invention is by the way that to upper layer of soil is removed, the heavy metal that can rapidly reduce among soil contains Amount, is mixed by free of contamination soil and lower floor soil to be repaired, so as to reduce the content of heavy metal among soil, It can adapt to the growth of plant；And by the plant of plantation, the heavy metal among soil can be effectively sponged, so as to drop The content of heavy metal among low soil；Which time cycle is short simultaneously, and the time for reducing heavy metal is shorter.

Embodiment

In order that those skilled in the art are better understood from the present invention program, it is right below in conjunction with the embodiment of the present invention Technical scheme in the embodiment of the present invention carries out clear, complete description.

A kind of soil remediation method containing heavy metal, comprises the following steps：1) sample of part heavy metal soil is taken, Then soil is placed on surface plate, removes the solid metal impurity and plastic contaminant among soil, soil is placed into baking Dried among case, then detect heavy metal in soil species and content of beary metal；2）Soil to be repaired is filtered, filtered out Solid metal and plastic contaminant in soil；3）Topsoil soil to be repaired is concentrated, then using excavator The dell of 10 meters of depths is dug, the soil that will focus on together is filled among dell；Then two metal derbies are inserted among dell, A wire is connected on two metal derbies simultaneously, and water is added in dell, is then powered on wire；It is noticeable It is that insulating protection column is set up by dell；The insulating protection column adopts made of plastic, in insulating protection marge provided with one layer of rubber Glue-line.

4）The soil to be repaired for transporting free of contamination soil and removing upper layer of soil is comprehensively mixed；Then plantation is planted Thing is among the soil mixed；The preferred chicken coop grass of plant planted is planted；And when plantation, in chicken Nest grass is other to sprinkle farm manure；5）The plant grown up completely is pulled out, new plant is then planted;The plant wherein pulled out is being pulled out Except after, by being exposed to the sun, plant is shone completely to withered transport afterwards and buried among the soil of other heavy metal frees.

Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, should all belong to the scope of protection of the invention.

Claims

1. a kind of soil remediation method containing heavy metal, comprises the following steps：

1) sample of part heavy metal soil is taken, then soil is placed on surface plate, the solid gold among soil is removed Belong to impurity and plastic contaminant, soil is placed among baking oven and dried, then detect that heavy metal in soil species and heavy metal contain Amount；

2) soil to be repaired is filtered, filters out the solid metal and plastic contaminant in soil；

3) topsoil soil to be repaired is concentrated, the dell of 10 meters of depths is then excavated using excavator, be will focus on Soil together is filled among dell；

4) soil to be repaired for transporting free of contamination soil and removing upper layer of soil is comprehensively mixed；Then planting plants are arrived Among the soil mixed.

2. a kind of soil remediation method containing heavy metal according to claim 1, it is characterised in that：Step 4) in planted The preferred chicken coop grass of plant of plant is planted.

3. a kind of soil remediation method containing heavy metal according to claim 2, it is characterised in that：In the chicken coop of plantation Careless side sprinkles farm manure.