CN111073656A - Novel heavy metal stabilizer and method for treating heavy metal contaminated soil by using same - Google Patents
Novel heavy metal stabilizer and method for treating heavy metal contaminated soil by using same Download PDFInfo
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- CN111073656A CN111073656A CN201811217789.0A CN201811217789A CN111073656A CN 111073656 A CN111073656 A CN 111073656A CN 201811217789 A CN201811217789 A CN 201811217789A CN 111073656 A CN111073656 A CN 111073656A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
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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
- C09K2101/00—Agricultural use
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- 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)
Abstract
The invention discloses a novel heavy metal stabilizer and a method for treating heavy metal contaminated soil by using the same, which are characterized by comprising the following components in parts by weight: the stabilizer comprises a liquid stabilizer and a solid stabilizer, wherein the liquid stabilizer comprises the following components in percentage by weight: 30-70 parts of 3-mercapto-2-butanol, 50-80 parts of 8-mercaptomenthone, 50-80 parts of sodium lignin-based dithiocarbamate, 100-150 parts of rosin, 120-200 parts of organic flocculant and 120-200 parts of amide compound, wherein the solid stabilizer comprises the following components in parts by weight: 120-200 parts of hydroxyapatite and 70-120 parts of polymerizing agent. The invention has the beneficial effects that: according to the novel heavy metal stabilizer and the method for treating the heavy metal contaminated soil by using the novel heavy metal stabilizer, the heavy metal contaminated soil is purified step by step for multiple times by using the solid stabilizer and the liquid stabilizer, and finally, the soil is purified by biodegradation, meanwhile, the organic property of the soil is increased, the thorough purification of the heavy metal contaminated soil is ensured, and the novel heavy metal stabilizer can be specially used for treating the soil with serious heavy metal contamination.
Description
Technical Field
The invention relates to a heavy metal sludge treatment technology, in particular to a novel heavy metal stabilizer and a method for treating heavy metal contaminated soil by using the same.
Background
Heavy metal pollution is soil pollution caused by excessive deposition of heavy metals in the waste in the soil. The heavy metals polluting the farmland soil mainly comprise elements with obvious biological toxicity, such as mercury, cadmium, lead, chromium, metalloid arsenic and the like, and elements with certain toxicity, such as zinc, copper, nickel and the like. Mainly comes from mining waste residues, pesticides, waste water, sludge, atmospheric sedimentation and the like, for example, mercury mainly comes from mercury-containing waste water, cadmium and lead pollution mainly comes from smelting emission and automobile waste gas sedimentation, and arsenic is widely used as an insecticide, a bactericide, a rodenticide and a herbicide. Excessive heavy metal can cause physiological dysfunction and nutritional disorder of plants, the enrichment coefficient of elements such as cadmium, mercury and the like in crop seeds is higher, even if the enrichment coefficient exceeds the food sanitation standard, the growth, development and yield of crops are not influenced, and in addition, mercury and arsenic can weaken and inhibit the activities of nitrifying and ammonifying bacteria in soil and influence the nitrogen supply.
The purification treatment of heavy metal soil is more and more taken attention of people now, and people generally select heavy metal stabilizer for come heavy metal soil purification treatment now, but some soil pollution condition very serious ordinary heavy metal stabilizer can only carry out purification treatment to heavy metal soil to a certain extent, but the pollution degree of heavy metal soil is too high, and soil behind its purifying effect still can not reach the standard of normal use.
Disclosure of Invention
The invention aims to provide a novel heavy metal stabilizer and a method for treating heavy metal contaminated soil by using the same, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides a novel heavy metal stabilizer which is characterized by comprising the following components in percentage by weight: the stabilizer comprises a liquid stabilizer and a solid stabilizer, wherein the liquid stabilizer comprises the following components in percentage by weight: 30-70 parts of 3-mercapto-2-butanol, 50-80 parts of 8-mercaptomenthone, 50-80 parts of sodium lignin-based dithiocarbamate, 100-150 parts of rosin, 120-200 parts of organic flocculant and 120-200 parts of amide compound, wherein the solid stabilizer comprises the following components in parts by weight: 120-200 parts of hydroxyapatite, 70-120 parts of polymerizer, 120-200 parts of quicklime powder, 70-120 parts of activated charcoal and 300-500 parts of sodium bentonite.
The amide compounds comprise acrylamide, carbamide and amino formamide.
The polymerizing agent is rubidium magnet fragments, and the radius of the rubidium magnet fragments is between 0.6 mm and 1.2 mm.
The method for treating the heavy metal contaminated soil comprises the following steps:
1) and (3) drying the heavy metal soil into heavy metal soil blocks in a drying cylinder at the temperature of 60-70 ℃.
2) And crushing the heavy metal soil blocks, mixing and stirring the crushed heavy metal soil blocks and the prepared solid stabilizer according to the ratio of 20:3, finally introducing a proper amount of clear water, stirring for 1-2 h, and standing and maintaining for 1-2 days outdoors to obtain the once-treated heavy metal soil.
3) And (3) fully mixing and stirring the heavy metal soil subjected to the primary treatment and the liquid stabilizer according to the ratio of 20:5, and standing for 6-9 hours to obtain the heavy metal soil subjected to the secondary treatment.
4) And (3) fully mixing and stirring the heavy metal soil subjected to the secondary treatment and the liquid stabilizer according to the ratio of 20:9, and standing and maintaining for 1-2 days outdoors to obtain the heavy metal soil subjected to the tertiary treatment.
5) And (3) fully mixing the heavy metal soil subjected to the three-time treatment with the biodegradable soil according to the ratio of 9:40, standing for 5-7 days in a humid environment, and then maintaining for 2-3 days in outdoor dry weather.
The biodegradable soil is sludge at the bottom of a fishpond with the culture time of more than 2 years.
The invention has the beneficial effects that: according to the novel heavy metal stabilizer and the method for treating the heavy metal contaminated soil by using the novel heavy metal stabilizer, the heavy metal contaminated soil is purified step by step for multiple times by using the solid stabilizer and the liquid stabilizer, and finally, the soil is purified by biodegradation, meanwhile, the organic property of the soil is increased, the thorough purification of the heavy metal contaminated soil is ensured, and the novel heavy metal stabilizer can be specially used for treating the soil with serious heavy metal contamination.
Detailed Description
The following further description is provided in conjunction with the detailed description, but the detailed description below should not be construed as limiting the invention. Various modifications and variations obvious to those skilled in the art, which can be made on the basis of the present invention, should be within the scope of the present invention.
Example 1:
the invention provides a novel heavy metal stabilizer which is characterized by comprising the following components in percentage by weight: the stabilizer comprises a liquid stabilizer and a solid stabilizer, wherein the liquid stabilizer comprises the following components in percentage by weight: 30-70 parts of 3-mercapto-2-butanol, 50-80 parts of 8-mercaptomenthone, 50-80 parts of sodium lignin-based dithiocarbamate, 100-150 parts of rosin, 120-200 parts of organic flocculant and 120-200 parts of amide compound, wherein the solid stabilizer comprises the following components in parts by weight: 120-200 parts of hydroxyapatite, 70-120 parts of polymerizer, 120-200 parts of quicklime powder, 70-120 parts of activated charcoal and 300-500 parts of sodium bentonite.
The amide compounds comprise acrylamide, carbamide and amino formamide.
The polymerizing agent is rubidium magnet fragments, and the radius of the rubidium magnet fragments is between 0.6 mm and 1.2 mm.
The method for treating the heavy metal contaminated soil comprises the following steps:
1) and (3) drying the heavy metal soil into heavy metal soil blocks in a drying cylinder at the temperature of 60-70 ℃.
2) And crushing the heavy metal soil blocks, mixing and stirring the crushed heavy metal soil blocks and the prepared solid stabilizer according to the ratio of 20:3, finally introducing a proper amount of clear water, stirring for 1-2 h, and standing and maintaining for 1-2 days outdoors to obtain the once-treated heavy metal soil.
3) And (3) fully mixing and stirring the heavy metal soil subjected to the primary treatment and the liquid stabilizer according to the ratio of 20:5, and standing for 6-9 hours to obtain the heavy metal soil subjected to the secondary treatment.
4) And (3) fully mixing and stirring the heavy metal soil subjected to the secondary treatment and the liquid stabilizer according to the ratio of 20:9, and standing and maintaining for 1-2 days outdoors to obtain the heavy metal soil subjected to the tertiary treatment.
5) And (3) fully mixing the heavy metal soil subjected to the three-time treatment with the biodegradable soil according to the ratio of 9:40, standing for 5-7 days in a humid environment, and then maintaining for 2-3 days in outdoor dry weather.
The biodegradable soil is sludge at the bottom of a fishpond with the culture time of more than 2 years.
Example 2:
the invention provides a novel heavy metal stabilizer which is characterized by comprising the following components in percentage by weight: the stabilizer comprises a liquid stabilizer and a solid stabilizer, wherein the liquid stabilizer comprises the following components in percentage by weight: 30-70 parts of 3-mercapto-2-butanol, 50-80 parts of 8-mercaptomenthone, 50-80 parts of sodium lignin-based dithiocarbamate, 100-150 parts of rosin, 120-200 parts of organic flocculant and 120-200 parts of amide compound, wherein the solid stabilizer comprises the following components in parts by weight: 120-200 parts of hydroxyapatite, 70-120 parts of polymerizer, 120-200 parts of quicklime powder, 70-120 parts of activated charcoal and 300-500 parts of sodium bentonite.
The amide compounds comprise acrylamide, carbamide and amino formamide.
The polymerizing agent is rubidium magnet fragments, and the radius of the rubidium magnet fragments is between 0.6 mm and 1.2 mm.
The method for treating the heavy metal contaminated soil comprises the following steps:
1) and (3) drying the heavy metal soil into heavy metal soil blocks in a drying cylinder at the temperature of 60-70 ℃.
2) And crushing the heavy metal soil blocks, mixing and stirring the crushed heavy metal soil blocks and the prepared solid stabilizer according to the ratio of 20:3, finally introducing a proper amount of clear water, stirring for 2-3 h, and standing and maintaining for 1-2 days outdoors to obtain the once-treated heavy metal soil.
3) And (3) fully mixing and stirring the heavy metal soil subjected to the primary treatment and the liquid stabilizer according to the ratio of 20:5, and standing for 5-8 hours to obtain the heavy metal soil subjected to the secondary treatment.
4) And (3) fully mixing and stirring the heavy metal soil subjected to the secondary treatment and the liquid stabilizer according to the ratio of 20:9, and standing and maintaining for 1-3 days outdoors to obtain the heavy metal soil subjected to the tertiary treatment.
5) And (3) fully mixing the heavy metal soil subjected to the three-time treatment with the biodegradable soil according to the ratio of 9:40, standing for 4-6 days in a humid environment, and then maintaining for 2-4 days in outdoor dry weather.
The biodegradable soil is sludge at the bottom of a fishpond with the culture time of more than 3 years.
Example 3:
the invention provides a novel heavy metal stabilizer which is characterized by comprising the following components in percentage by weight: the stabilizer comprises a liquid stabilizer and a solid stabilizer, wherein the liquid stabilizer comprises the following components in percentage by weight: 30-70 parts of 3-mercapto-2-butanol, 50-80 parts of 8-mercaptomenthone, 50-80 parts of sodium lignin-based dithiocarbamate, 100-150 parts of rosin, 120-200 parts of organic flocculant and 120-200 parts of amide compound, wherein the solid stabilizer comprises the following components in parts by weight: 120-200 parts of hydroxyapatite, 70-120 parts of polymerizer, 120-200 parts of quicklime powder, 70-120 parts of activated charcoal and 300-500 parts of sodium bentonite.
The amide compounds comprise acrylamide, carbamide and amino formamide.
The polymerizing agent is rubidium magnet fragments, and the radius of the rubidium magnet fragments is between 0.6 mm and 1.2 mm.
The method for treating the heavy metal contaminated soil comprises the following steps:
1) and (3) drying the heavy metal soil into heavy metal soil blocks in a drying cylinder at the temperature of 60-70 ℃.
2) And crushing the heavy metal soil blocks, mixing and stirring the crushed heavy metal soil blocks and the prepared solid stabilizer according to the ratio of 20:3, finally introducing a proper amount of clear water, stirring for 2-3 h, and standing and maintaining for 1-2 days outdoors to obtain the once-treated heavy metal soil.
3) And (3) fully mixing and stirring the heavy metal soil subjected to the primary treatment and the liquid stabilizer according to the ratio of 20:5, and standing for 7-11 hours to obtain the heavy metal soil subjected to the secondary treatment.
4) And (3) fully mixing and stirring the heavy metal soil subjected to the secondary treatment and the liquid stabilizer according to the ratio of 20:9, and standing and maintaining for 1-2 days outdoors to obtain the heavy metal soil subjected to the tertiary treatment.
5) And (3) fully mixing the heavy metal soil subjected to the three-time treatment with the biodegradable soil according to the ratio of 9:40, standing for 6-8 days in a humid environment, and then maintaining for 3-4 days outdoors in a dry weather.
The biodegradable soil is sludge at the bottom of a fishpond with the culture time of more than 3 years.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (5)
1. A novel heavy metal stabilizer is characterized by comprising the following components in percentage by weight: the stabilizer comprises a liquid stabilizer and a solid stabilizer, wherein the liquid stabilizer comprises the following components in percentage by weight: 30-70 parts of 3-mercapto-2-butanol, 50-80 parts of 8-mercaptomenthone, 50-80 parts of sodium lignin-based dithiocarbamate, 100-150 parts of rosin, 120-200 parts of organic flocculant and 120-200 parts of amide compound, wherein the solid stabilizer comprises the following components in parts by weight: 120-200 parts of hydroxyapatite, 70-120 parts of polymerizer, 120-200 parts of quicklime powder, 70-120 parts of activated charcoal and 300-500 parts of sodium bentonite.
2. A novel heavy metal stabilizer according to claim 1, characterized in that: the amide compounds comprise acrylamide, carbamide and amino formamide.
3. A novel heavy metal stabilizer according to claim 1, characterized in that: the polymerizing agent is rubidium magnet fragments, and the radius of the rubidium magnet fragments is between 0.6 mm and 1.2 mm.
4. The method for treating heavy metal contaminated soil by using the novel heavy metal stabilizer according to any one of claims 1 to 3, wherein: the method comprises the following process steps: (1) drying heavy metal soil in a drying cylinder at the temperature of 60-70 ℃ until the heavy metal soil is dried and cracked into heavy metal soil blocks; (2) crushing the heavy metal soil blocks, mixing and stirring the crushed heavy metal soil blocks and a prepared solid stabilizer according to the proportion of 20:3, finally introducing a proper amount of clear water, stirring for 1-2 h, and standing and maintaining for 1-2 days outdoors to obtain the once-treated heavy metal soil; (3) fully mixing and stirring the primarily treated heavy metal soil and a liquid stabilizer according to the ratio of 20:5, and standing for 6-9 hours to obtain secondarily treated heavy metal soil; (4) fully mixing and stirring the heavy metal soil subjected to the secondary treatment and the liquid stabilizer according to the ratio of 20:9, and standing and maintaining the heavy metal soil outdoors for 1 to 2 days to obtain heavy metal soil subjected to the tertiary treatment; (5) and (3) fully mixing the heavy metal soil subjected to the three-time treatment with the biodegradable soil according to the ratio of 9:40, standing for 5-7 days in a humid environment, and then maintaining for 2-3 days in outdoor dry weather.
5. The method for treating the heavy metal contaminated soil by using the novel heavy metal stabilizer according to claim 4, wherein the method comprises the following steps: the biodegradable soil is sludge at the bottom of a fishpond with the culture time of more than 2 years.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217789.0A CN111073656A (en) | 2018-10-18 | 2018-10-18 | Novel heavy metal stabilizer and method for treating heavy metal contaminated soil by using same |
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| CN201811217789.0A CN111073656A (en) | 2018-10-18 | 2018-10-18 | Novel heavy metal stabilizer and method for treating heavy metal contaminated soil by using same |
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| CN111073656A true CN111073656A (en) | 2020-04-28 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784452A (en) * | 2012-07-18 | 2012-11-21 | 广西大学 | Heavy metal stabilizer for removal of heavy metal pollution and its using method |
| CN103787558A (en) * | 2012-11-01 | 2014-05-14 | 深圳市海川实业股份有限公司 | Heavy metal stabilizer used for sludge treatment, and method for treating sludge by adopting it |
| CN104592999A (en) * | 2015-01-12 | 2015-05-06 | 云南银发绿色环保产业股份有限公司 | Soil heavy metal stabilizer |
| CN105238409A (en) * | 2015-11-04 | 2016-01-13 | 北京高能时代环境技术股份有限公司 | Linkage stabilizing agent for repairing heavy metal contaminated soil and repairing method |
| CN105665429A (en) * | 2016-01-11 | 2016-06-15 | 华中科技大学 | Soil heavy metal stabilizing agent and preparation method and application thereof |
| CN106984641A (en) * | 2017-03-01 | 2017-07-28 | 沃邦环保有限公司 | The chemical stabilizer and the restorative procedure of heavy-metal contaminated soil repaired for heavy-metal contaminated soil |
| CN107523311A (en) * | 2017-08-31 | 2017-12-29 | 李朋国 | A kind of heavy metal stabilizer |
-
2018
- 2018-10-18 CN CN201811217789.0A patent/CN111073656A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102784452A (en) * | 2012-07-18 | 2012-11-21 | 广西大学 | Heavy metal stabilizer for removal of heavy metal pollution and its using method |
| CN103787558A (en) * | 2012-11-01 | 2014-05-14 | 深圳市海川实业股份有限公司 | Heavy metal stabilizer used for sludge treatment, and method for treating sludge by adopting it |
| CN104592999A (en) * | 2015-01-12 | 2015-05-06 | 云南银发绿色环保产业股份有限公司 | Soil heavy metal stabilizer |
| CN105238409A (en) * | 2015-11-04 | 2016-01-13 | 北京高能时代环境技术股份有限公司 | Linkage stabilizing agent for repairing heavy metal contaminated soil and repairing method |
| CN105665429A (en) * | 2016-01-11 | 2016-06-15 | 华中科技大学 | Soil heavy metal stabilizing agent and preparation method and application thereof |
| CN106984641A (en) * | 2017-03-01 | 2017-07-28 | 沃邦环保有限公司 | The chemical stabilizer and the restorative procedure of heavy-metal contaminated soil repaired for heavy-metal contaminated soil |
| CN107523311A (en) * | 2017-08-31 | 2017-12-29 | 李朋国 | A kind of heavy metal stabilizer |
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