CN104726104A - Preparation method of modification mineral composition for improving heavy metal polluted soil - Google Patents
Preparation method of modification mineral composition for improving heavy metal polluted soil Download PDFInfo
- Publication number
- CN104726104A CN104726104A CN201510142706.6A CN201510142706A CN104726104A CN 104726104 A CN104726104 A CN 104726104A CN 201510142706 A CN201510142706 A CN 201510142706A CN 104726104 A CN104726104 A CN 104726104A
- Authority
- CN
- China
- Prior art keywords
- mineral
- preparation
- composition
- roasting
- soil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- 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
Landscapes
- 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 relates to a preparation method of a modification mineral composition for improving heavy metal polluted soil. The preparation method comprises the following steps: separately carrying out coarse crushing and roller screening on attapulgite, vermiculite, sepiolite, zeolite and diatomite, uniformly mixing the five screened small granular minerals to obtain a mineral mixture, spraying water onto the mineral mixture and extruding to obtain a flaky mineral composition; piling the flaky mineral composition up and drying in the sun naturally; roasting in a rotary kiln to obtain roasted mineral; compounding and mixing the roasted mineral with flyash and quick lime uniformly to obtain a mixture; and milling the mixture into powder to obtain the modification mineral composition. On one hand by virtue of adsorption and precipitation effects for heavy metals, the modifier composition provided by the invention is capable of changing the existence state of heavy metals in soil and reducing the bioavailability and mobility 0f heavy metals; on the other hand, by improving the soil structure, the modifier composition is capable of improving the water-retaining property and air permeability of soil, which is beneficial to promoting the growth of plants.
Description
Technical field
The present invention relates to a kind of preparation method of contaminated soil conditioner composition, be specifically related to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition.
Background technology
The strategic resource that soil is human survival, make the country prosperous and stable.Along with the fast development of industrialization, urbanization, intensive agriculture, a large amount of undressed waste shifts to soil system, and collects under the effect of natural cause, residues in edatope.According to estimates, China reaches up to ten million hectare by the contaminated soil such as agricultural chemicals, heavy metal area, constitutes a serious threat to China's eco-environmental quality, food safety and social economy's sustainable development.The kind of pollution substance mainly contains heavy metal, nitrate, agricultural chemicals and persistence organic pollutant, radionuclide, pathogenic bacteria/virus and xenobiotic etc.At present, Soil pollution degradation shows multi-source, compound, amount is large, wide, lastingly, the modern environment contamination characteristics of poisoning, just micro-persistence is turned to poison pollutent from constant pollutent, especially in rapidly developing region, the overall present situation of Soil pollution degradation is from Local immunotherapy to region, rural area is extended to from outskirts of a town, city, combined pollution is expanded to from Single Pollution, pollute from poisonous and harmful and be developed to poisonous and harmful pollution and N, the intersection that P nutrition is polluted, formation point source and pollution of area source coexist, domestic pollution, agricultural pollution and industrial pollution superposition, various new and old pollution and the mutual compound of secondary pollution or the situation mixed.
Soil pollution brings extremely serious consequence: the first, and soil pollution makes natively nervous cultivated land resource shorter; The second, soil pollution brings great threat to the healthy of the people; 3rd, soil pollution brings very large disadvantageous effect to agricultural development; 4th, soil pollution is also the major reason causing other environmental pollutions; 5th, the pollutent in soil pollution has transport property and anelasticity, likely continues to cause new Land pollution; Six, soil pollution seriously jeopardizes the interests of offspring descendants, is unfavorable for the Sustainable development of rural economy.Therefore, the modification method studying contaminated soil is significant.At present, for the improvement of heavy-metal contaminated soil, mainly through biological restoration, use lime, applying organic manure, pouring water regulates the measure such as soil pH value, passenger's soil to reduce or decontamination, effect also respectively has quality, such as biological restoration removing heavy metals effect is better, but the manufacturing cost in early stage of biotechnological formulation is high, also restricts its range of application.
CN103351870A (publication date 2013-10-16) discloses a kind of soil improvement agent, comprise each component of following weight ratio: acrylamide-acrylicacid salt crosslinking copolymerization thing 10-15, acrylamide-acrylicacid receive multipolymer 20-30, montmorillonite 55-60, and are formed by this each component chelating.This soil improvement agent is pale yellow powder particle, itself and mixing with soil are reacted through granule and are formed after hydrophobic reactant and have very loose crumb structure soil, this crumb structure soil has excellent fertilizer conservation, water conservation, ventilative solid-liquid-gas three phase structure, is beneficial to the growth of root system of plant.
Improvement and the modification method of some heavy-metal contaminated soils is prior art discloses although above-mentioned, certain needs can be met, but still there is certain defect in these technology: the removal effect of such as heavy metal is undesirable, and cost is high, is not suitable for large-scale promotion application.
Therefore, the administering method for heavy-metal contaminated soil in prior art exists and further improves and optimize demand, and this is also one of study hotspot and emphasis in this technical field, especially the power that is accomplished of the present invention and starting point place.
Summary of the invention
In order to the technical problem that the improvement of contaminated soil cost overcoming prior art existence removal effect that is high and heavy metal is undesirable, the present inventor after having carried out a large amount of further investigations, thus completes the present invention.
The present invention is achieved through the following technical solutions, and in particular to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition, comprises the following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing and roller screen respectively, mixed by five kinds of small-particle mineral under sieve, obtain mixed mineral, spray water, to mixed mineral, is then squeezed into shaped minerals composition;
Step (2), stacks more than 48 hours by described shaped minerals composition, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition input rotary kiln described moisture weight content being less than 20% carries out roasting, obtains the mineral after roasting;
Mineral after described roasting and flyash, unslaked lime are carried out composite, mixing, obtain mixture by step (4);
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
Preferably, in step (1), the aperture of described roller screen is 2-5cm, this scope includes any concrete point value belonged to wherein, such as 2cm, 3cm, 4cm or 5cm, most preferably 3cm, also includes the scope that any two point values in these concrete point values are formed, more preferably 3-4cm.
Preferably, in step (1), in described five kinds of small-particle mineral, the diatomaceous weight ratio of Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ is (5-8): (1-2): (1-2): (1-2): (1-2), this scope includes any concrete point value belonged to wherein, such as 5 ︰ 1 ︰ 1 ︰ 1 ︰ 1, 6 ︰ 1 ︰ 1 ︰ 1 ︰ 1, 7 ︰ 1 ︰ 1 ︰ 1 ︰ 1, 8 ︰ 1 ︰ 1 ︰ 1 ︰ 1, 5 ︰ 2 ︰ 2 ︰ 2 ︰ 2, 6 ︰ 2 ︰ 2 ︰ 2 ︰ 2, 7 ︰ 2 ︰ 2 ︰ 2 ︰ 2, 8 ︰ 2 ︰ 2 ︰ 2 ︰ 2, 5 ︰ 1 ︰ 2 ︰ 1 ︰ 2, 6 ︰ 2 ︰ 1 ︰ 2 ︰ 2, 7 ︰ 1 ︰ 2 ︰ 1 ︰ 2 or 8 ︰ 2 ︰ 1 ︰ 2 ︰ 2, most preferably 6 ︰ 1 ︰ 1 ︰ 1 ︰ 1, also include the scope that any two point values in these concrete point values are formed, more preferably (5-8) ︰ 1 ︰ 1 ︰ 1 ︰ 1.
Preferably, in step (1), spray underground water to mixed mineral.
Preferably, in step (1), spray water makes to mixed mineral, the moisture weight content of mixed mineral is 40-50%, this scope includes any concrete point value belonged to wherein, and such as 40%, 41%, 42%, 43%, 44%, 45%, 46%, 47%, 48%, 49% or 50%, most preferably 45%, also include the scope that any two point values in these concrete point values are formed, more preferably 43-48%.
Preferably, in step (1), three-roller is used to be squeezed into shaped minerals composition.
Preferably, in step (1), the lamellar spacing of described shaped minerals composition is control 1-5mm, and this scope includes any concrete point value belonged to wherein, such as 1mm, 2mm, 3mm, 4mm or 5mm, most preferably 3mm, also include the scope that any two point values in these concrete point values are formed, more preferably 2-4mm.
Preferably, in step (3), the temperature of described roasting is 540-560 DEG C, this scope includes any concrete point value belonged to wherein, such as 540 DEG C, 542 DEG C, 545 DEG C, 547 DEG C, 550 DEG C, 553 DEG C, 555 DEG C, 557 DEG C or 560 DEG C, also include the scope that any two point values in these concrete point values are formed, more preferably 545-555 DEG C.
Preferably, in step (3), the time 10-20 minute of described roasting, this scope includes any concrete point value belonged to wherein, such as 11 minutes, 12 minutes, 13 minutes, 14 minutes, 15 minutes, 16 minutes, 17 minutes, 18 minutes, 19 minutes or 20 minutes, also include the scope that any two point values in these concrete point values are formed, more preferably 13-18 minute.
Preferably, in step (3), the shaped minerals composition travelling belt that described moisture weight content is less than 20% inputs rotary kiln.
Preferably, in step (4), the weight ratio of the mineral after roasting, flyash, unslaked lime is (1-3): (1-3): (1-2), this scope includes any concrete point value belonged to wherein, such as 1 ︰ 1 ︰ 1,1 ︰ 2 ︰ 2,1 ︰ 3 ︰ 1,1 ︰ 3 ︰ 2,3 ︰ 1 ︰ 1,3 ︰ 1 ︰ 2,3 ︰ 3 ︰ 1,2 ︰ 2 ︰ 1 or 3 ︰ 3 ︰ 2, most preferably 2 ︰ 2 ︰ 1, also include the scope that any two point values in these concrete point values are formed, more preferably (1-2): (1-2): (1-2).
Compared with prior art, beneficial effect of the present invention is as follows: the present invention is by the complex optimum of the series of steps such as the selection of five kinds of raw mineral materialss and pulverizing, compressing tablet, roasting, composite and abrasive dust, the effect of especially roasting link, make the modifying agent composition provided on the one hand by the effect such as absorption, precipitation of heavy metal, change the existence of heavy metal in soil, reduce biological effectiveness and the transport property of heavy metal; On the other hand, by improving Soil structure, improving water-retentivity and the ventilation property of soil, being conducive to Promoting plant growth.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Embodiment 1
The present embodiment relates to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition, is made up of following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing respectively, aperture 5cm roller screen, five kinds of small-particle mineral (the diatomaceous weight ratio of Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ is 6 ︰ 1 ︰ 1 ︰ 1 ︰ 1) under sieve are mixed, obtain mixed mineral, spray underground water to mixed mineral, make the moisture weight content of mixed mineral be 48%, then use three-roller to be squeezed into shaped minerals composition (control strip layer thickness 5mm);
Step (2), by described shaped minerals combination stacking more than 48 hours, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition travelling belt described moisture weight content being less than 20% inputs rotary kiln, and control temperature 540 DEG C, carries out roasting, stops about 13 minutes, obtains the mineral after roasting;
Step (4), by the mineral after roasting and flyash, unslaked lime according to weight ratio 2 ︰ 2 ︰ 1 carry out composite, mix, obtain mixture;
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
Embodiment 2
The present embodiment relates to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition, is made up of following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing respectively, aperture 4cm roller screen, five kinds of small-particle mineral (Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ diatomite is 8 ︰ 1 ︰ 1 ︰ 1 ︰ 1) under sieve are mixed, obtain mixed mineral, spray underground water to mixed mineral, make the moisture weight content of mixed mineral be 50%, then use three-roller to be squeezed into shaped minerals composition (control strip layer thickness 1mm);
Step (2), by described shaped minerals combination stacking more than 48 hours, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition travelling belt described moisture weight content being less than 20% inputs rotary kiln, and control temperature 545 DEG C, carries out roasting, stops about 15 minutes, obtains the mineral after roasting;
Step (4), by the mineral after roasting and flyash, unslaked lime according to weight ratio 1 ︰ 1 ︰ 1 carry out composite, mix, obtain mixture;
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
Embodiment 3
The present embodiment relates to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition, is made up of following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing respectively, aperture 3cm roller screen, five kinds of small-particle mineral (the diatomaceous weight ratio of Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ is 5 ︰ 2 ︰ 2 ︰ 2 ︰ 2) under sieve are mixed, obtain mixed mineral, spray underground water to mixed mineral, make the moisture weight content of mixed mineral be 40%, then use three-roller to be squeezed into shaped minerals composition (control strip layer thickness 2mm);
Step (2), by described shaped minerals combination stacking more than 48 hours, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition travelling belt described moisture weight content being less than 20% inputs rotary kiln, and control temperature 550 DEG C, carries out roasting, stops about 18 minutes, obtains the mineral after roasting;
Step (4), by the mineral after roasting and flyash, unslaked lime according to weight ratio 1 ︰ 3 ︰ 1 carry out composite, mix, obtain mixture;
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
Embodiment 4
The present embodiment relates to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition, is made up of following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing respectively, aperture 2cm roller screen, five kinds of small-particle mineral (the diatomaceous weight ratio of Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ is 5 ︰ 1 ︰ 2 ︰ 1 ︰ 2) under sieve are mixed, obtain mixed mineral, spray underground water to mixed mineral, make the moisture weight content of mixed mineral be 43%, then use three-roller to be squeezed into shaped minerals composition (control strip layer thickness 3mm);
Step (2), by described shaped minerals combination stacking more than 48 hours, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition travelling belt described moisture weight content being less than 20% inputs rotary kiln, and control temperature 555 DEG C, carries out roasting, stops about 20 minutes, obtains the mineral after roasting;
Step (4), by the mineral after roasting and flyash, unslaked lime according to weight ratio 1 ︰ 3 ︰ 2 carry out composite, mix, obtain mixture;
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
Embodiment 5
The present embodiment relates to a kind of preparation method of heavy-metal contaminated soil improvement modified mineral composition, is made up of following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing respectively, aperture 3cm roller screen, five kinds of small-particle mineral (the diatomaceous weight ratio of Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ is 7 ︰ 1 ︰ 2 ︰ 1 ︰ 2) under sieve are mixed, obtain mixed mineral, spray underground water to mixed mineral, make the moisture weight content of mixed mineral be 45%, then use three-roller to be squeezed into shaped minerals composition (control strip layer thickness 4mm);
Step (2), by described shaped minerals combination stacking more than 48 hours, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition travelling belt described moisture weight content being less than 20% inputs rotary kiln, and control temperature 560 DEG C, carries out roasting, stops about 10 minutes, obtains the mineral after roasting;
Step (4), by the mineral after roasting and flyash, unslaked lime according to weight ratio 3 ︰ 1 ︰ 2 carry out composite, mix, obtain mixture;
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
Comparative example 1
This comparative example is with the difference of embodiment 1: omit step (3), namely do not carry out high-temperature roasting.
Comparative example 2
This comparative example is with the difference of embodiment 2: omit step (3), namely do not carry out high-temperature roasting.
Comparative example 3
This comparative example is with the difference of embodiment 3: omit step (3), namely do not carry out high-temperature roasting.
Comparative example 4
This comparative example is with the difference of embodiment 4: omit step (3), namely do not carry out high-temperature roasting.
Comparative example 5
This comparative example is with the difference of embodiment 5: omit step (3), namely do not carry out high-temperature roasting.
Implement above-described embodiment 1-5 and comparative example 1-5 respectively and then obtain modified mineral composition sample, heavy-metal contaminated soil and above-mentioned modified mineral composition sample are carried out the removal improved test of heavy metal-polluted soil (cadmium) at normal temperatures according to weight ratio 100:3, each is tested heavy-metal contaminated soil used and picks up from same area, the sample of each embodiment and comparative example repeats five improved tests, get its mean value to carry out calculating and adding up, acquired results is as shown in table 1 below.
The result of table 1 embodiment 1-5 and comparative example 1-5
As seen from the above table, cadmium clearance in embodiment 1-5 is at 93.3-97.2%, and the cadmium clearance of comparative example 1-5 is at 67.8-71.6%, illustrate that the removing amplitude of embodiment 1-5 Heavy Metals in Contaminated Soils cadmium is remarkable, the high-temperature roasting technique further illustrated in step (3) has vital impact for the effect of the final modified mineral composition obtained in Heavy Metals in Soil Contaminated improvement removal, especially maturing temperature is 540-560 DEG C, the modified mineral composition obtained when the time of roasting is 10-20 minute is more outstanding in the removal effect of soil heavy metal cadmium.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. a heavy-metal contaminated soil improvement preparation method for modified mineral composition, is characterized in that, comprise the following steps:
Step (1), by attapulgite, vermiculite, sepiolite, zeolite, diatomite coarse crushing and roller screen respectively, mixed by five kinds of small-particle mineral under sieve, obtain mixed mineral, spray water, to mixed mineral, is then squeezed into shaped minerals composition;
Step (2), stacks more than 48 hours by described shaped minerals composition, then naturally dries to moisture weight content and is less than 20%;
Step (3), the shaped minerals composition input rotary kiln described moisture weight content being less than 20% carries out roasting, obtains the mineral after roasting;
Mineral after described roasting and flyash, unslaked lime are carried out composite, mixing, obtain mixture by step (4);
Step (5), carries out abrasive dust by described mixture, obtains soil improvement modified mineral composition.
2. as claimed in claim preparation method, it is characterized in that, in step (1), the aperture of described roller screen is 2-5cm.
3. as claimed in claim preparation method, it is characterized in that, in step (1), in described five kinds of small-particle mineral, the diatomaceous weight ratio of Ao convex Bang Shi ︰ Zhi Shi ︰ Hai Pao Shi ︰ Fei Shi ︰ is (5-8): (1-2): (1-2): (1-2): (1-2).
4. as claimed in claim preparation method, it is characterized in that, in step (1), spray underground water to mixed mineral.
5. as claimed in claim preparation method, it is characterized in that, in step (1), spray water to mixed mineral makes the moisture weight content of mixed mineral be 40-50%.
6. as claimed in claim preparation method, it is characterized in that, in step (1), use three-roller be squeezed into shaped minerals composition.
7. as claimed in claim preparation method, it is characterized in that, in step (1), the lamellar spacing of described shaped minerals composition is control 1-5mm.
8. as claimed in claim preparation method, it is characterized in that, in step (3), the temperature of described roasting is 540-560 DEG C.
9. as claimed in claim preparation method, it is characterized in that, in step (3), the time 10-20 minute of described roasting.
10. as claimed in claim preparation method, it is characterized in that, in step (4), the weight ratio of the mineral after roasting, flyash, unslaked lime is (1-3): (1-3): (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142706.6A CN104726104B (en) | 2015-03-27 | 2015-03-27 | The preparation method of heavy-metal contaminated soil improvement modified mineral composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510142706.6A CN104726104B (en) | 2015-03-27 | 2015-03-27 | The preparation method of heavy-metal contaminated soil improvement modified mineral composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104726104A true CN104726104A (en) | 2015-06-24 |
| CN104726104B CN104726104B (en) | 2018-04-13 |
Family
ID=53450538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510142706.6A Active CN104726104B (en) | 2015-03-27 | 2015-03-27 | The preparation method of heavy-metal contaminated soil improvement modified mineral composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104726104B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907329A (en) * | 2015-07-14 | 2015-09-16 | 湖南大学 | Mining heavy metal polluted soil solidifying/stabilizing method |
| CN105713619A (en) * | 2016-03-01 | 2016-06-29 | 广东省生态环境与土壤研究所（广东省土壤科学博物馆） | Method for preparing iron silicon sulfur multi-element composite biochar soil heavy metal conditioner |
| CN105778922A (en) * | 2016-04-11 | 2016-07-20 | 湖南云粉网络科技有限公司 | Novel soil conditioner and preparing method thereof |
| CN106365918A (en) * | 2016-09-21 | 2017-02-01 | 安徽瀚景观规划设计院有限公司 | Mining soil improvement agent and preparation method thereof |
| CN106943989A (en) * | 2017-04-12 | 2017-07-14 | 明光市国星凹土有限公司 | It is a kind of to be used for attapulgite modified soda acid combined techniques |
| CN111073653A (en) * | 2019-12-13 | 2020-04-28 | 广东省地质实验测试中心 | Passivator for repairing soil heavy metal Cd pollution and preparation method thereof |
| CN114806585A (en) * | 2022-03-29 | 2022-07-29 | 湖州蔚复来为民环保科技有限公司 | Soil eluting agent, soil remediation method and method for preparing organic nutrient soil |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805617A (en) * | 2009-02-16 | 2010-08-18 | 中国科学院沈阳应用生态研究所 | Soil heavy metal passivant for facilities vegetable field and preparation method thereof |
| CN102327732A (en) * | 2011-07-10 | 2012-01-25 | 许盛英 | Chlorine-free drying agent for spherical mineral |
| CN102327733A (en) * | 2011-07-10 | 2012-01-25 | 许盛英 | Chlorine-free drying agent for strip mineral |
| CN102807872A (en) * | 2012-08-21 | 2012-12-05 | 中国科学院沈阳应用生态研究所 | Biochar mixing type protected horticultural vegetable field soil heavy metal passivant and preparation method thereof |
| CN102950146A (en) * | 2012-10-18 | 2013-03-06 | 葛成军 | Improvement method for acid heavy metal lead contaminated soil of tropical zone |
-
2015
- 2015-03-27 CN CN201510142706.6A patent/CN104726104B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101805617A (en) * | 2009-02-16 | 2010-08-18 | 中国科学院沈阳应用生态研究所 | Soil heavy metal passivant for facilities vegetable field and preparation method thereof |
| CN102327732A (en) * | 2011-07-10 | 2012-01-25 | 许盛英 | Chlorine-free drying agent for spherical mineral |
| CN102327733A (en) * | 2011-07-10 | 2012-01-25 | 许盛英 | Chlorine-free drying agent for strip mineral |
| CN102807872A (en) * | 2012-08-21 | 2012-12-05 | 中国科学院沈阳应用生态研究所 | Biochar mixing type protected horticultural vegetable field soil heavy metal passivant and preparation method thereof |
| CN102950146A (en) * | 2012-10-18 | 2013-03-06 | 葛成军 | Improvement method for acid heavy metal lead contaminated soil of tropical zone |
Non-Patent Citations (3)
| Title |
|---|
| 于勤勤，牛漫兰: "改性硅酸盐矿物在修复土壤重金属污染中的应用", 《安徽农学通报》 * |
| 刘云等: "环境矿物材料在土壤环境修复中的应用研究进展", 《土壤学报》 * |
| 杭小帅等: "粘土矿物修复重金属污染土壤", 《环境工程学报》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104907329A (en) * | 2015-07-14 | 2015-09-16 | 湖南大学 | Mining heavy metal polluted soil solidifying/stabilizing method |
| CN105713619A (en) * | 2016-03-01 | 2016-06-29 | 广东省生态环境与土壤研究所（广东省土壤科学博物馆） | Method for preparing iron silicon sulfur multi-element composite biochar soil heavy metal conditioner |
| CN105713619B (en) * | 2016-03-01 | 2017-02-22 | 广东省生态环境与土壤研究所（广东省土壤科学博物馆） | Method for preparing iron silicon sulfur multi-element composite biochar soil heavy metal conditioner |
| US10131840B2 (en) | 2016-03-01 | 2018-11-20 | Guangdong Institute Of Eco-Environmental Science & Technology | Method for preparing iron silicon sulfur multi-element composite biochar soil heavy metal conditioner |
| CN105778922A (en) * | 2016-04-11 | 2016-07-20 | 湖南云粉网络科技有限公司 | Novel soil conditioner and preparing method thereof |
| CN105778922B (en) * | 2016-04-11 | 2019-05-03 | 湖南云粉网络科技有限公司 | Soil conditioner and preparation method thereof |
| CN106365918A (en) * | 2016-09-21 | 2017-02-01 | 安徽瀚景观规划设计院有限公司 | Mining soil improvement agent and preparation method thereof |
| CN106943989A (en) * | 2017-04-12 | 2017-07-14 | 明光市国星凹土有限公司 | It is a kind of to be used for attapulgite modified soda acid combined techniques |
| CN111073653A (en) * | 2019-12-13 | 2020-04-28 | 广东省地质实验测试中心 | Passivator for repairing soil heavy metal Cd pollution and preparation method thereof |
| CN111073653B (en) * | 2019-12-13 | 2021-03-16 | 广东省地质实验测试中心 | Passivator for repairing soil heavy metal Cd pollution and preparation method thereof |
| CN114806585A (en) * | 2022-03-29 | 2022-07-29 | 湖州蔚复来为民环保科技有限公司 | Soil eluting agent, soil remediation method and method for preparing organic nutrient soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104726104B (en) | 2018-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104726104A (en) | Preparation method of modification mineral composition for improving heavy metal polluted soil | |
| CN106147775B (en) | A kind of fixed renovation agent of biochemistry combined soil heavy metal pollution and application | |
| CN103788959B (en) | A kind of heavy-metal contaminated soil renovation agent and preparation method thereof | |
| CN104877688B (en) | A kind of conditioner and preparation method for improveing heavy metal pollution agricultural land soil | |
| CN106147778A (en) | Passivator, preparation method and applications for repairing heavy metal in soil combined pollution | |
| CN108192631B (en) | A kind of charcoal base flora composite soil conditioner and its preparation and application | |
| CN105802637A (en) | Soil heavy metal passivator, preparation method thereof, and passivation method thereof on soil cadmium | |
| CN103361072B (en) | Cadmium pollution bioremediation agent and its preparation method and application | |
| CN105482827A (en) | Soil conditioner with function of heavy metal-polluted soil restoration | |
| CN104957009B (en) | Regulate and control the method for turfgrass heavy metal accumulation using OTC and CNT interlayer | |
| CN108002922A (en) | One heavy metal species soil-repairing agent | |
| CN104838996B (en) | Regulate and control the method for turfgrass heavy metal accumulation using chlorine pyrazothion and CNT interlayer | |
| CN102553905A (en) | Method for remediating cadmium contaminated soil of vegetable field in situ by compounding bio-charcoal and organic fertilizer | |
| CN104263374B (en) | A kind of soil heavy metal combined stabilizer and its application method | |
| CN106045758A (en) | Amendment for heavy-metal contaminated soil and preparation method therefor | |
| CN104904574B (en) | Regulate and control the method for turfgrass heavy metal accumulation using Tupersan and CNT interlayer | |
| CN104941993B (en) | A kind of method for comprehensive repairing in serious pollution soil | |
| CN106590673B (en) | Soil conditioner for repairing heavy metal pollution of farmland and preparation method thereof | |
| CN104291925A (en) | Method for producing biological organic compound fertilizer by processing municipal domestic sludge through three-step technology | |
| CN110452705A (en) | A kind of heavy metal pollution of soil renovation agent and preparation method thereof | |
| CN110591728A (en) | Conditioner for mercury-polluted soil and preparation method thereof | |
| CN104004522B (en) | A kind of soil composite modifying agent and its preparation method and application | |
| CN105414161A (en) | Remediation method for soil in petroleum-polluted saline and alkali land | |
| CN111269067A (en) | Saline-alkali soil improver and application thereof in improvement of watermelon saline-alkali soil | |
| CN114032103A (en) | Method for preparing soil conditioner by high-temperature calcination of phosphogypsum serving as raw material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |