CN111876161A - Heavy metal curing additive for treating polluted soil and preparation method thereof - Google Patents
Heavy metal curing additive for treating polluted soil and preparation method thereof Download PDFInfo
- Publication number
- CN111876161A CN111876161A CN202010861262.2A CN202010861262A CN111876161A CN 111876161 A CN111876161 A CN 111876161A CN 202010861262 A CN202010861262 A CN 202010861262A CN 111876161 A CN111876161 A CN 111876161A
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- heavy metal
- soil
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- curing additive
- metal curing
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a heavy metal curing additive for treating polluted soil and a preparation method thereof, relating to the technical field of soil treatment, and the heavy metal curing additive comprises the following components in percentage by weight: 40-50% of clay mineral, 20-30% of cementing material, 20-30% of zeolite and 10-20% of dolomite, wherein the clay mineral comprises the following components in percentage by weight: 40% of clay mineral, 20% of cementing material, 30% of zeolite and 10% of dolomite; the invention uses insoluble material additive made of natural mineral, which saves cost, has small environmental load, can maintain soil property after improvement, does not affect the utilization of vegetation, high fill, and the like, has simple construction, can use high-concentration soil by mixing the invention with soil, and finally can well cure heavy metal in the soil and effectively prevent pollution diffusion.
Description
Technical Field
The invention relates to the technical field of soil treatment, in particular to a heavy metal curing additive for treating polluted soil and a preparation method thereof.
Background
In real life, when heavy metals such as lead are contained in soil, the heavy metals may be dissolved and moved by underground water, soil water, and the like, and contamination and diffusion may occur, which may cause environmental pollution and may affect life health of people.
Therefore, it is necessary to design an additive capable of solidifying heavy metals to prevent the diffusion of pollution and protect the environment better.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a heavy metal curing additive for treating polluted soil and a preparation method thereof, and solves the problems in the background art.
In order to achieve the purpose, the invention is realized by the following technical scheme: the heavy metal curing additive for treating polluted soil and the preparation method thereof comprise the following components in percentage by weight: 40-50% of clay mineral, 20-30% of cementing material, 20-30% of zeolite and 10-20% of dolomite.
The heavy metal curing additive for treating the polluted soil and the preparation method thereof are preferably composed of the following components in percentage by weight: 40% of clay mineral, 20% of cementing material, 30% of zeolite and 10% of dolomite.
The above heavy metal curing additive for treating contaminated soil and the preparation method thereof preferably comprise the following steps:
s1, grinding the clay mineral, the cementing material, the zeolite and the dolomite, and sieving by a 200-mesh sieve;
s2, stirring and mixing the powdery components in the S1;
and S3, airing the product in the S2 for 6h in a natural environment.
In the above-mentioned heavy metal solidifying additive for treating contaminated soil and the preparation method thereof, it is preferable that a sodium acetate solution is added at the time of S2.
In the heavy metal curing additive for treating contaminated soil and the preparation method thereof, the cementing material is preferably silica fume.
Compared with the prior art, the invention has the following beneficial effects: the insoluble material additive prepared from natural minerals saves cost, has small environmental load, can maintain soil characteristics after improvement, does not influence the utilization of vegetation, high fill and the like, is simple to construct, can be mixed with soil, can use high-concentration soil, and finally can well cure heavy metals in the soil to effectively prevent pollution diffusion.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a first embodiment of a construction drawing according to the present invention;
FIG. 3 is a second embodiment of the construction drawing of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the present invention provides a technical solution: the heavy metal curing additive for treating polluted soil and the preparation method thereof comprise the following components in percentage by weight: 40-50% of clay mineral, 20-30% of cementing material (the cementing material is silica fume), 20-30% of zeolite and 10-20% of dolomite.
The paint consists of the following components in percentage by weight: 40% of clay mineral, 20% of cementing material, 30% of zeolite and 10% of dolomite.
The method comprises the following steps:
s1, grinding the clay mineral, the cementing material, the zeolite and the dolomite, and sieving by a 200-mesh sieve;
s2, stirring and mixing the powdery components in the S1, and adding a sodium acetate solution when the S2 is performed;
and S3, airing the product in the S2 for 6h in a natural environment.
Referring to fig. 1, the present invention is an insoluble material additive prepared by mixing natural materials such as natural zeolite and volcanic weathered clay, and the like, in which contaminated materials such as heavy metals are highly solidified in soil along with crystallization of a curing agent and heavy metals after a considerable time since heavy metal curing additive is gradually adsorbed and immobilized by contacting the contaminated materials with the contaminated materials in the soil for a certain time.
Referring to fig. 2, the first aspect of the present invention is that additives can be added into soil through various mixing methods (contaminated soil is represented by soil pollution caused by arsenic, the upward angle is 1000 cubic meters, the upward angle is represented by an insoluble chemical method, and the construction period is 1 month).
Referring to fig. 3, the second is that the additive may be added to the soil by continuous mixing (mercury, arsenic, or yellow soil as contaminants), the amount of which is 7000 cubic meters, the method is an insoluble chemical method, and the duration is 2 months).
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The heavy metal curing additive for treating the polluted soil and the preparation method thereof are characterized in that: the paint consists of the following components in percentage by weight: 40-50% of clay mineral, 20-30% of cementing material, 20-30% of zeolite and 10-20% of dolomite.
2. The heavy metal curing additive for contaminated soil treatment and the preparation method thereof according to claim 1, wherein: the paint consists of the following components in percentage by weight: 40% of clay mineral, 20% of cementing material, 30% of zeolite and 10% of dolomite.
3. The heavy metal curing additive for contaminated soil treatment and the preparation method thereof according to claim 2, wherein: the method comprises the following steps:
s1, grinding the clay mineral, the cementing material, the zeolite and the dolomite, and sieving by a 200-mesh sieve;
s2, stirring and mixing the powdery components in the S1;
and S3, airing the product in the S2 for 6h in a natural environment.
4. The heavy metal curing additive for contaminated soil treatment and the preparation method thereof according to claim 3, wherein: in carrying out S2, a sodium acetate solution was added.
5. The heavy metal curing additive for contaminated soil treatment and the preparation method thereof according to claim 4, wherein: the cementing material is silica fume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010861262.2A CN111876161A (en) | 2020-08-25 | 2020-08-25 | Heavy metal curing additive for treating polluted soil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010861262.2A CN111876161A (en) | 2020-08-25 | 2020-08-25 | Heavy metal curing additive for treating polluted soil and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111876161A true CN111876161A (en) | 2020-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010861262.2A Pending CN111876161A (en) | 2020-08-25 | 2020-08-25 | Heavy metal curing additive for treating polluted soil and preparation method thereof |
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| CN (1) | CN111876161A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962553A (en) * | 2010-09-21 | 2011-02-02 | 同济大学 | Curing agent for restoring heavy metal contaminated soil |
| CN107267151A (en) * | 2017-07-27 | 2017-10-20 | 蒋奇晋 | A kind of soil conditioner and preparation method thereof |
-
2020
- 2020-08-25 CN CN202010861262.2A patent/CN111876161A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101962553A (en) * | 2010-09-21 | 2011-02-02 | 同济大学 | Curing agent for restoring heavy metal contaminated soil |
| CN107267151A (en) * | 2017-07-27 | 2017-10-20 | 蒋奇晋 | A kind of soil conditioner and preparation method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201103 |
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| RJ01 | Rejection of invention patent application after publication |