CN111974792A - Functional landfill formula for soil remediation and preparation method - Google Patents
Functional landfill formula for soil remediation and preparation method Download PDFInfo
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- CN111974792A CN111974792A CN202010861044.9A CN202010861044A CN111974792A CN 111974792 A CN111974792 A CN 111974792A CN 202010861044 A CN202010861044 A CN 202010861044A CN 111974792 A CN111974792 A CN 111974792A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a functional landfill soil formula for soil remediation and a preparation method thereof, relating to the technical field of soil remediation, and comprising volcanic ash, chitosan, cetyl ammonium bromide, glyceryl tristearate, 8-hydroxyquinoline copper, aluminum chlorohydrol, urea, bentonite, zeolite, an efficient alkali water agent and water; the weight portions of the raw materials are respectively as follows: 10-18 parts of volcanic ash, 6-8 parts of chitosan, 3-5 parts of hexadecyl ammonium bromide, 3-5 parts of tristearin, 1-1.5 parts of 8-hydroxyquinoline copper, 2-5 parts of aluminum chlorohydrate, 5-6 parts of urea, 5-15 parts of bentonite, 5-10 parts of zeolite, 5-10 parts of a high-efficiency alkaline solution agent and 30-45 parts of water; the invention has good ion adsorption function and natural stability, contains abundant aloin and other low-crystallinity clay minerals, has the function of buffering pH value, has strong effect on environmental change, has the effect on preventing functional pollution and recontamination, and recovers the original function of soil.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a functional landfill formula for soil remediation and a preparation method thereof.
Background
In reality, the soil washing soil contains a large amount of gravel therein, which causes a decrease in water retention and fertilizer retention, and makes it difficult for plants to grow, and the soil has a low buffering effect (weak against changes in pH and the like), and has a low possibility of dissolving and lying heavy metals, and the soil is contaminated and the resistance to recontamination is lowered.
Therefore, it is necessary to design a landfill soil having a repairing function to solve the above problems and also to improve the soil environment.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a functional landfill formula for soil remediation 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 functional landfill soil formula for soil remediation and the preparation method thereof comprise volcanic ash, chitosan, hexadecyl ammonium bromide, tristearin, 8-hydroxyquinoline copper, aluminum chlorohydrate, urea, bentonite, zeolite, an efficient alkali water agent and water;
the weight portions of the raw materials are respectively as follows: 10-18 parts of volcanic ash, 6-8 parts of chitosan, 3-5 parts of hexadecyl ammonium bromide, 3-5 parts of tristearin, 1-1.5 parts of 8-hydroxyquinoline copper, 2-5 parts of aluminum chlorohydrate, 5-6 parts of urea, 5-15 parts of bentonite, 5-10 parts of zeolite, 5-10 parts of a high-efficiency alkaline solution agent and 30-45 parts of water.
The above functional landfill soil formula for soil remediation and the preparation method thereof preferably comprise the following steps:
s1, screening the volcanic ash by a 10mm square-hole sieve, and airing the part below the sieve for later use;
s2, putting the screened volcanic ash, chitosan, hexadecyl ammonium bromide, tristearin, 8-hydroxyquinoline copper, aluminum chlorohydroxide, urea and zeolite into a grinding device for grinding for 3-5 min;
s3, paving the ground raw materials in the step S2 on a concrete flat plate, and airing the concrete flat plate in the sun;
s4, adding the semi-finished product in the S3 into water to obtain a mixed aqueous solution, continuously stirring for scrubbing, then adding bentonite and a high-efficiency alkali water agent, and continuously stirring until the scrubbing is finished;
s5, sieving the solution obtained after S4 is finished, reserving undersize, carrying out centrifugal treatment, and reserving precipitate after the centrifugal treatment is finished;
and S6, conveying the semi-finished product in the S5 to a rotary sterilizing furnace, and performing low-temperature sterilization and drying treatment to obtain the finished product of the landfill soil.
The functional landfill soil formula for soil remediation and the preparation method as described above, wherein, preferably, when the contaminated soil is backfilled with the formed landfill soil, one cubic meter of the contaminated soil is backfilled with 30-60 kg of the formed landfill soil.
In the above functional landfill soil for soil remediation formulation and preparation method, it is preferable that the drying time is 18 to 24 hours at S3.
The functional landfill soil formula for soil remediation and the preparation method thereof are as described above, wherein preferably, the temperature is controlled at 40-80 ℃ for 30 minutes at the time of S6, the water content of the sterilized and dried semi-finished product is less than or equal to 10%, and the semi-finished product is packaged into the formed landfill soil after cooling.
Compared with the prior art, the invention has the following beneficial effects: has good ion adsorption function and natural stability, contains abundant aloin and other low-crystallinity clay minerals, has the function of buffering pH value, has strong effect on environmental change, has the effect on preventing functional pollution and recontamination, and recovers the original function of soil.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.
The invention provides a technical scheme that: the functional landfill soil formula for soil remediation and the preparation method thereof comprise volcanic ash, chitosan, hexadecyl ammonium bromide, tristearin, 8-hydroxyquinoline copper, aluminum chlorohydrate, urea, bentonite, zeolite, an efficient alkali water agent and water;
the weight portions of the raw materials are respectively as follows: 10-18 parts of volcanic ash, 6-8 parts of chitosan, 3-5 parts of hexadecyl ammonium bromide, 3-5 parts of tristearin, 1-1.5 parts of 8-hydroxyquinoline copper, 2-5 parts of aluminum chlorohydrate, 5-6 parts of urea, 5-15 parts of bentonite, 5-10 parts of zeolite, 5-10 parts of a high-efficiency alkaline solution agent and 30-45 parts of water.
The method comprises the following steps:
s1, screening the volcanic ash by a 10mm square-hole sieve, and airing the part below the sieve for later use;
s2, putting the screened volcanic ash, chitosan, hexadecyl ammonium bromide, tristearin, 8-hydroxyquinoline copper, aluminum chlorohydroxide, urea and zeolite into a grinding device for grinding for 3-5 min;
s3, paving the ground raw materials in the step S2 on a concrete flat plate, and airing in the sun for 18-24 hours;
s4, adding the semi-finished product in the S3 into water to obtain a mixed aqueous solution, continuously stirring for scrubbing, then adding bentonite and a high-efficiency alkali water agent, and continuously stirring until the scrubbing is finished;
s5, sieving the solution obtained after S4 is finished, reserving undersize, carrying out centrifugal treatment, and reserving precipitate after the centrifugal treatment is finished;
s6, conveying the semi-finished product in the S5 to a rotary sterilizing furnace, sterilizing at low temperature and drying to obtain the finished product of the buried soil, controlling the temperature at 40-80 ℃ and the time at 30 minutes, wherein the water content of the sterilized and dried semi-finished product is less than or equal to 10%, cooling and packaging to obtain the formed buried soil.
When the formed burying-back soil is used for backfilling the polluted soil, one cubic meter of the polluted soil is buried back according to the formed burying-back soil of 30-60 kg, the burying-back can be carried out in a mixing mode by matching an excavator with a mixing bucket, and the burying-back can be carried out in a continuous mixing mode by matching the excavator with a self-driven mixer.
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 functional landfill formula for soil remediation and the preparation method are characterized in that: comprises volcanic ash, chitosan, hexadecyl ammonium bromide, tristearin, 8-hydroxyquinoline copper, aluminum chlorohydrate, urea, bentonite, zeolite, an efficient alkali agent and water;
the weight portions of the raw materials are respectively as follows: 10-18 parts of volcanic ash, 6-8 parts of chitosan, 3-5 parts of hexadecyl ammonium bromide, 3-5 parts of tristearin, 1-1.5 parts of 8-hydroxyquinoline copper, 2-5 parts of aluminum chlorohydrate, 5-6 parts of urea, 5-15 parts of bentonite, 5-10 parts of zeolite, 5-10 parts of a high-efficiency alkaline solution agent and 30-45 parts of water.
2. The functional landfill soil formula for soil remediation and the preparation method thereof according to claim 1, wherein the formula comprises: the method comprises the following steps:
s1, screening the volcanic ash by a 10mm square-hole sieve, and airing the part below the sieve for later use;
s2, putting the screened volcanic ash, chitosan, hexadecyl ammonium bromide, tristearin, 8-hydroxyquinoline copper, aluminum chlorohydroxide, urea and zeolite into a grinding device for grinding for 3-5 min;
s3, paving the ground raw materials in the step S2 on a concrete flat plate, and airing the concrete flat plate in the sun;
s4, adding the semi-finished product in the S3 into water to obtain a mixed aqueous solution, continuously stirring for scrubbing, then adding bentonite and a high-efficiency alkali water agent, and continuously stirring until the scrubbing is finished;
s5, sieving the solution obtained after S4 is finished, reserving undersize, carrying out centrifugal treatment, and reserving precipitate after the centrifugal treatment is finished;
and S6, conveying the semi-finished product in the S5 to a rotary sterilizing furnace, and performing low-temperature sterilization and drying treatment to obtain the finished product of the landfill soil.
3. The functional landfill soil formula for soil remediation and the preparation method thereof according to claim 2, wherein the formula comprises: and when the formed burying soil is used for backfilling the polluted soil, burying the polluted soil of one cubic meter according to the formed burying soil of 30-60 kg.
4. The functional landfill soil formula for soil remediation and the preparation method thereof according to claim 3, wherein the formula comprises: in S3, the airing time is 18-24 h.
5. The functional landfill soil formula for soil remediation and the preparation method thereof according to claim 4, wherein the formula comprises: and S6, controlling the temperature at 40-80 ℃ for 30 minutes, controlling the water content of the sterilized and dried semi-finished product to be less than or equal to 10%, cooling and packaging to form the formed buried soil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010861044.9A CN111974792A (en) | 2020-08-25 | 2020-08-25 | Functional landfill formula for soil remediation and preparation method |
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| CN202010861044.9A CN111974792A (en) | 2020-08-25 | 2020-08-25 | Functional landfill formula for soil remediation and preparation method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272286A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Grouting material for soil improvement and insolubilization method of soil contaminant using the same |
| CN106552594A (en) * | 2016-12-07 | 2017-04-05 | 郑州源冉生物技术有限公司 | A kind of heavy metal composite adsorbing material based on volcanic ash and preparation method thereof |
| CN108393072A (en) * | 2018-05-25 | 2018-08-14 | 安徽中弘科技发展有限公司 | A kind of volcano ash adsorbent and preparation method thereof |
| CN109894469A (en) * | 2019-04-10 | 2019-06-18 | 河南工学院 | Medicament and restorative procedure are repaired for the efficient stableization of heavy-metal contaminated soil |
-
2020
- 2020-08-25 CN CN202010861044.9A patent/CN111974792A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006272286A (en) * | 2005-03-30 | 2006-10-12 | Sumitomo Osaka Cement Co Ltd | Grouting material for soil improvement and insolubilization method of soil contaminant using the same |
| CN106552594A (en) * | 2016-12-07 | 2017-04-05 | 郑州源冉生物技术有限公司 | A kind of heavy metal composite adsorbing material based on volcanic ash and preparation method thereof |
| CN108393072A (en) * | 2018-05-25 | 2018-08-14 | 安徽中弘科技发展有限公司 | A kind of volcano ash adsorbent and preparation method thereof |
| CN109894469A (en) * | 2019-04-10 | 2019-06-18 | 河南工学院 | Medicament and restorative procedure are repaired for the efficient stableization of heavy-metal contaminated soil |
Non-Patent Citations (4)
| Title |
|---|
| 同济大学材料科学与工程学院主编: "《材料科学与工程专业实践教学指导书 金属与无机非金属材料分册》", 31 December 2017, 同济大学出版社 * |
| 吴小缓主编: "《工业固废处理与利用技术研究及应用新进展》", 31 July 2017, 中国建材工业出版社 * |
| 律琳琳等: "4种矿物材料改良Cd污染土壤的研究", 《河北农业大学学报》 * |
| 杜海光等: "污染场地修复技术研究及修复实例分析", 《大氮肥》 * |
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