CN110871056A - Underground water repairing agent, preparation method and use method - Google Patents
Underground water repairing agent, preparation method and use method Download PDFInfo
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- CN110871056A CN110871056A CN201911225509.5A CN201911225509A CN110871056A CN 110871056 A CN110871056 A CN 110871056A CN 201911225509 A CN201911225509 A CN 201911225509A CN 110871056 A CN110871056 A CN 110871056A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/041—Oxides or hydroxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/12—Naturally occurring clays or bleaching earth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/165—Natural alumino-silicates, e.g. zeolites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
Abstract
The invention discloses an underground water repairing agent, a preparation method and a use method thereof, wherein the underground water repairing agent comprises the following raw materials in parts by weight: 30-40 parts of potassium feldspar, 20-30 parts of calcium oxide, 6-8 parts of hydroxyapatite, 4-6 parts of cellulose, 10-20 parts of humic acid, 12-14 parts of polyolefin resin, 14-16 parts of activated carbon, 8-10 parts of ceramsite, 4-6 parts of charcoal powder, 6-8 parts of ore, 6-8 parts of montmorillonite clay, 3-7 parts of adhesive, 4-6 parts of carboxylic acid and a proper amount of water, wherein the adhesive is one or more of ethyl cellulose, chitosan and cellulose acetate. The underground water repairing agent is granular, has a multilayer structure, can adsorb various heavy metal ions contained in underground water, is long in action time and obvious in action effect, cannot cause secondary pollution to a water body, is easy to obtain raw materials, good in treatment effect, free of secondary pollution and wide in prospect.
Description
Technical Field
The invention belongs to the technical field of underground water protection, and particularly relates to an underground water repairing agent, a preparation method and a use method.
Background
With the rapid development of national economy and industry in China, the problem of environmental pollution is increasingly highlighted, and toxic and harmful pollutants enter an underground environment system through various ways to cause underground water pollution. Heavy metal ions in water mainly come from the fields of mineral separation, smelting, electroplating and the like, the heavy metals have the characteristics of high toxicity, non-biodegradability, biological enrichment, incapability of participating in human body metabolism and the like, and even if water containing trace heavy metal ions is drunk for a long time, the heavy metals can be enriched in the human body, so that a series of toxicological reactions are generated, irreversible health hazards are caused to the human body, and therefore, the prevention and treatment of the heavy metal pollution of the water body is one of important factors for ensuring the health of the human body.
The groundwater restoration agent in the current market has insufficient restoration capability, a large amount of heavy metal ions still remain in the water body after restoration, and the restoration agent contains certain water pollutants, which can cause secondary pollution to the water body.
Disclosure of Invention
The invention aims to provide a groundwater remediation agent to make up for the defects of the prior art.
In order to solve the problems, the technical scheme adopted by the invention is as follows: the underground water repairing agent comprises the following raw materials in parts by weight: 30-40 parts of potash feldspar, 20-30 parts of calcium oxide, 6-8 parts of hydroxyapatite, 4-6 parts of cellulose, 10-20 parts of humic acid, 12-14 parts of polyolefin resin, 14-16 parts of activated carbon, 8-10 parts of ceramsite, 4-6 parts of charcoal powder, 6-8 parts of ore, 6-8 parts of montmorillonite clay, 3-7 parts of adhesive, 4-6 parts of carboxylic acid and a proper amount of water.
Preferably, 30 parts of potassium feldspar, 20 parts of calcium oxide, 6 parts of hydroxyapatite, 4 parts of cellulose, 10 parts of humic acid, 12 parts of polyolefin resin, 14 parts of activated carbon, 8 parts of ceramsite, 4 parts of charcoal powder, 6 parts of ore, 6 parts of montmorillonite clay, 3 parts of adhesive, 4 parts of carboxylic acid and a proper amount of water.
Preferably, 35 parts of potassium feldspar, 25 parts of calcium oxide, 7 parts of hydroxyapatite, 5 parts of cellulose, 15 parts of humic acid, 13 parts of polyolefin resin, 15 parts of activated carbon, 9 parts of ceramsite, 5 parts of charcoal powder, 7 parts of ore, 7 parts of montmorillonite clay, 5 parts of adhesive, 5 parts of carboxylic acid and a proper amount of water.
Preferably, the adhesive is one or more of ethyl cellulose, chitosan and cellulose acetate.
A preparation method of an underground water repairing agent comprises the following steps:
s1, adding hydroxyapatite into water, stirring at a low speed until a uniformly dispersed suspension is obtained, then adding charcoal powder into the suspension, and continuously stirring until the mixture is uniform to obtain a mixed turbid solution A for later use;
s2, adding carboxylic acid into water, stirring at a low speed until the carboxylic acid is completely dissolved, then adding an adhesive into the dissolved solution, continuously stirring until the adhesive is completely dissolved to obtain a mixed solution B, adding the mixed turbid solution A prepared in the step S1 into the mixed solution B, and uniformly stirring and mixing to obtain a mixture C for later use;
s3, respectively adding potash feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore and montmorillonite clay into a crusher for crushing, putting the sieved crushed materials into a stirrer, adding cellulose, stirring at a low speed and uniformly mixing to obtain mixed crushed materials D for later use;
s4, adding a proper amount of water into the mixed crushed material D obtained in the step S3, and granulating by using a granulator to obtain spherical particles E for later use;
s5, uniformly spraying the mixture C obtained in the step S2 on the surface of the spherical particles E obtained in the step S4 with a sprayer, and obtaining the spherical repairing agent when the surface is completely covered.
Preferably, the amount of water added in step S1 is 4-6 times the mass of the hydroxyapatite, and the amount of water added in step S2 is 5-6 times the mass of the carboxylic acid.
Preferably, in the step S3, the potassium feldspar, the calcium oxide, the humic acid, the polyolefin resin, the activated carbon, the ceramsite, the ore and the montmorillonite clay are crushed and then can pass through a sieve of 110-120 meshes.
Preferably, the spherical particles E obtained in step S4 have a diameter of 4 to 6 mm.
Preferably, the mass ratio of the spraying amount of the mixture C to the spherical particles E in the step S5 is 2: 2-2:3.
The use method of the underground water repairing agent comprises the following steps:
a. wrapping the groundwater remediation agent in a filter screen;
b. throwing the filter screen wrapped with the groundwater remediation agent into water to be remediated;
c. aerating the water to promote the filter screen wrapped with the groundwater remediation agent to disturb in the water until the water quality is reached.
The invention has the technical effects and advantages that: the underground water repairing agent is granular and has a multilayer structure, potassium feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore, montmorillonite clay and cellulose in the inner layer can adsorb various heavy metal ions contained in underground water, the powder can improve the contact degree with the underground water, and meanwhile, the repairing agent has the advantages of long acting time and obvious acting effect through the action of the outer coating layer, meanwhile, the raw materials used by the repairing agent are degradable raw materials, after the repairing of a water body is finished, the repairing agent cannot cause secondary pollution to the water body, the raw materials are easy to obtain, the treatment effect is good, no secondary pollution is caused, and the prospect is wide.
Detailed Description
The technical scheme of the invention is further explained by combining the embodiment as follows:
example 1
The underground water repairing agent comprises the following raw materials in parts by weight: 40 parts of potassium feldspar, 30 parts of calcium oxide, 8 parts of hydroxyapatite, 6 parts of cellulose, 20 parts of humic acid, 14 parts of polyolefin resin, 16 parts of activated carbon, 10 parts of ceramsite, 6 parts of charcoal powder, 8 parts of ore, 8 parts of montmorillonite clay, 7 parts of adhesive, 6 parts of carboxylic acid and a proper amount of water, wherein the adhesive is one or more of ethyl cellulose, chitosan and cellulose acetate.
A preparation method of an underground water repairing agent comprises the following steps:
s1, adding hydroxyapatite into water 4-6 times of the mass of the hydroxyapatite, stirring at a low speed until uniformly dispersed suspension is obtained, then adding charcoal powder into the suspension, and continuously stirring until uniformly dispersed suspension A is obtained for later use;
s2, adding carboxylic acid into water which is 5-6 times of the carboxylic acid in parts by mass, stirring at a low speed until the carboxylic acid is completely dissolved, then adding an adhesive into the dissolved solution, continuously stirring until the carboxylic acid is completely dissolved to prepare a mixed solution B, adding the mixed turbid solution A prepared in the step S1 into the mixed solution B, and uniformly stirring and mixing to obtain a mixture C for later use;
s3, respectively adding potash feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore and montmorillonite clay into a crusher to be crushed, sieving the crushed materials by a 100-mesh sieve, putting the sieved crushed materials into a stirrer, adding cellulose, stirring and mixing uniformly at a low speed to obtain mixed crushed materials D for later use;
s4, adding a proper amount of water into the mixed crushed material D obtained in the step S3, and granulating by a granulator to obtain spherical particles E with the diameter of 4-6mm for later use;
s5, uniformly spraying the mixture C obtained in the step S2 on the surface of the spherical particulate matter E prepared in the step S4 with a sprayer, after the surface is completely covered and the mass ratio of the mixture C to the spherical particulate matter E is 2: and (2) to (3), preparing the spherical repairing agent.
Example 2
The underground water repairing agent comprises the following raw materials in parts by weight: 30 parts of potassium feldspar, 20 parts of calcium oxide, 6 parts of hydroxyapatite, 4 parts of cellulose, 10 parts of humic acid, 12 parts of polyolefin resin, 14 parts of activated carbon, 8 parts of ceramsite, 4 parts of charcoal powder, 6 parts of ore, 6 parts of montmorillonite clay, 3 parts of adhesive, 4 parts of carboxylic acid and a proper amount of water, wherein the adhesive is one or more of ethyl cellulose, chitosan and cellulose acetate.
A preparation method of an underground water repairing agent comprises the following steps:
s1, adding hydroxyapatite into water 4-6 times of the mass of the hydroxyapatite, stirring at a low speed until uniformly dispersed suspension is obtained, then adding charcoal powder into the suspension, and continuously stirring until uniformly dispersed suspension A is obtained for later use;
s2, adding carboxylic acid into water which is 5-6 times of the carboxylic acid in parts by mass, stirring at a low speed until the carboxylic acid is completely dissolved, then adding an adhesive into the dissolved solution, continuously stirring until the carboxylic acid is completely dissolved to prepare a mixed solution B, adding the mixed turbid solution A prepared in the step S1 into the mixed solution B, and uniformly stirring and mixing to obtain a mixture C for later use;
s3, respectively adding potash feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore and montmorillonite clay into a crusher to be crushed, sieving the crushed materials by a 100-mesh sieve, putting the sieved crushed materials into a stirrer, adding cellulose, stirring and mixing uniformly at a low speed to obtain mixed crushed materials D for later use;
s4, adding a proper amount of water into the mixed crushed material D obtained in the step S3, and granulating by a granulator to obtain spherical particles E with the diameter of 4-6mm for later use;
s5, uniformly spraying the mixture C obtained in the step S2 on the surface of the spherical particulate matter E prepared in the step S4 with a sprayer, after the surface is completely covered and the mass ratio of the mixture C to the spherical particulate matter E is 2: and (2) to (3), preparing the spherical repairing agent.
Example 3
The underground water repairing agent comprises the following raw materials in parts by weight: 35 parts of potassium feldspar, 25 parts of calcium oxide, 7 parts of hydroxyapatite, 5 parts of cellulose, 15 parts of humic acid, 13 parts of polyolefin resin, 15 parts of activated carbon, 9 parts of ceramsite, 5 parts of charcoal powder, 7 parts of ore, 7 parts of montmorillonite clay, 5 parts of adhesive, 5 parts of carboxylic acid and a proper amount of water, wherein the adhesive is one or more of ethyl cellulose, chitosan and cellulose acetate.
A preparation method of an underground water repairing agent comprises the following steps:
s1, adding hydroxyapatite into water 4-6 times of the mass of the hydroxyapatite, stirring at a low speed until uniformly dispersed suspension is obtained, then adding charcoal powder into the suspension, and continuously stirring until uniformly dispersed suspension A is obtained for later use;
s2, adding carboxylic acid into water which is 5-6 times of the carboxylic acid in parts by mass, stirring at a low speed until the carboxylic acid is completely dissolved, then adding an adhesive into the dissolved solution, continuously stirring until the carboxylic acid is completely dissolved to prepare a mixed solution B, adding the mixed turbid solution A prepared in the step S1 into the mixed solution B, and uniformly stirring and mixing to obtain a mixture C for later use;
s3, respectively adding potash feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore and montmorillonite clay into a crusher to be crushed, sieving the crushed materials by a 100-mesh sieve, putting the sieved crushed materials into a stirrer, adding cellulose, stirring and mixing uniformly at a low speed to obtain mixed crushed materials D for later use;
s4, adding a proper amount of water into the mixed crushed material D obtained in the step S3, and granulating by a granulator to obtain spherical particles E with the diameter of 4-6mm for later use;
s5, uniformly spraying the mixture C obtained in the step S2 on the surface of the spherical particulate matter E prepared in the step S4 with a sprayer, after the surface is completely covered and the mass ratio of the mixture C to the spherical particulate matter E is 2: and (2) to (3), preparing the spherical repairing agent.
Embodiment 4, a method for using an underground water remediation agent, comprising the steps of:
a. the groundwater remediation agent is wrapped in a filter screen, and the aperture of the filter screen is smaller than the diameter of a single particle of the groundwater remediation agent, so that the groundwater remediation agent is prevented from being scattered out of the filter screen.
b. Throwing the filter screen wrapped with the groundwater remediation agent into water to be remediated;
c. aerating the water to promote the filter screen wrapped with the groundwater remediation agent to disturb in the water until the water quality is reached.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The underground water repairing agent is characterized in that: the feed comprises the following raw materials in parts by weight: 30-40 parts of potash feldspar, 20-30 parts of calcium oxide, 6-8 parts of hydroxyapatite, 4-6 parts of cellulose, 10-20 parts of humic acid, 12-14 parts of polyolefin resin, 14-16 parts of activated carbon, 8-10 parts of ceramsite, 4-6 parts of charcoal powder, 6-8 parts of ore, 6-8 parts of montmorillonite clay, 3-7 parts of adhesive, 4-6 parts of carboxylic acid and a proper amount of water.
2. A groundwater remediation agent as claimed in claim 1, wherein: 30 parts of potash feldspar, 20 parts of calcium oxide, 6 parts of hydroxyapatite, 4 parts of cellulose, 10 parts of humic acid, 12 parts of polyolefin resin, 14 parts of activated carbon, 8 parts of ceramsite, 4 parts of charcoal powder, 6 parts of ore, 6 parts of montmorillonite clay, 3 parts of an adhesive, 4 parts of carboxylic acid and a proper amount of water.
3. A groundwater remediation agent as claimed in claim 1, wherein: the feed comprises the following raw materials in parts by weight: 35 parts of potassium feldspar, 25 parts of calcium oxide, 7 parts of hydroxyapatite, 5 parts of cellulose, 15 parts of humic acid, 13 parts of polyolefin resin, 15 parts of activated carbon, 9 parts of ceramsite, 5 parts of charcoal powder, 7 parts of ore, 7 parts of montmorillonite clay, 5 parts of adhesive, 5 parts of carboxylic acid and a proper amount of water.
4. A groundwater remediation agent as claimed in claim 1, wherein: the adhesive is one or more of ethyl cellulose, chitosan and cellulose acetate.
5. A method for preparing a groundwater remediation agent as claimed in any one of claims 1 to 4, wherein: the method comprises the following steps:
s1, adding hydroxyapatite into water, stirring at a low speed until a uniformly dispersed suspension is obtained, then adding charcoal powder into the suspension, and continuously stirring until the mixture is uniform to obtain a mixed turbid solution A for later use;
s2, adding carboxylic acid into water, stirring at a low speed until the carboxylic acid is completely dissolved, then adding an adhesive into the dissolved solution, continuously stirring until the adhesive is completely dissolved to obtain a mixed solution B, adding the mixed turbid solution A prepared in the step S1 into the mixed solution B, and uniformly stirring and mixing to obtain a mixture C for later use;
s3, respectively adding potash feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore and montmorillonite clay into a crusher for crushing, putting the sieved crushed materials into a stirrer, adding cellulose, stirring at a low speed and uniformly mixing to obtain mixed crushed materials D for later use;
s4, adding a proper amount of water into the mixed crushed material D obtained in the step S3, and granulating by using a granulator to obtain spherical particles E for later use;
s5, uniformly spraying the mixture C obtained in the step S2 on the surface of the spherical particles E obtained in the step S4 with a sprayer, and obtaining the spherical repairing agent when the surface is completely covered.
6. A method of producing a groundwater remediation agent as claimed in claim 5, wherein: the amount of water added in step S1 is 4-6 times of the mass of the hydroxyapatite, and the amount of water added in step S2 is 5-6 times of the mass of the carboxylic acid.
7. A method of producing a groundwater remediation agent as claimed in claim 5, wherein: in the step S3, the crushed potash feldspar, calcium oxide, humic acid, polyolefin resin, activated carbon, ceramsite, ore and montmorillonite clay can pass through a 110-sand 120-mesh sieve.
8. A method of producing a groundwater remediation agent as claimed in claim 5, wherein: the spherical particles E obtained in step S4 had a diameter of 4 to 6 mm.
9. A method of producing a groundwater remediation agent as claimed in claim 5, wherein: in the step S5, the mass ratio of the spraying amount of the mixture C to the spherical particles E is 2: 2-2:3.
10. The use method of the underground water repairing agent comprises the following steps:
a. wrapping the groundwater remediation agent of any one of claims 1 to 4 in a screen;
b. throwing the filter screen wrapped with the groundwater remediation agent into water to be remediated;
c. aerating the water to promote the filter screen wrapped with the groundwater remediation agent to disturb in the water until the water quality is reached.
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| CN112661289A (en) * | 2020-12-30 | 2021-04-16 | 闽南师范大学 | Method for monitoring and preventing groundwater pollution |
| CN112792118A (en) * | 2020-12-22 | 2021-05-14 | 济南大学 | Method for preparing active filler by using hydroxyapatite, zero-valent iron and humic acid and application thereof |
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