CN110257080A - A kind of acid soil renovation agent and its preparation method and application - Google Patents
A kind of acid soil renovation agent and its preparation method and application Download PDFInfo
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- CN110257080A CN110257080A CN201910634378.XA CN201910634378A CN110257080A CN 110257080 A CN110257080 A CN 110257080A CN 201910634378 A CN201910634378 A CN 201910634378A CN 110257080 A CN110257080 A CN 110257080A
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- acid soil
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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
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
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- Chemical & Material Sciences (AREA)
- 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)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of acid soil renovation agents and its preparation method and application.The preparation method comprises the following steps: being compounded by natural nano clay with charcoal base manure, Alkaline minerals and pH sustained-release materials.The acid soil renovation agent is spread fertilizer over the fields with 50-100kg/ mus of ratio uniform in the surface of acid soil, then rotary tillage.The present invention is basic material with attapulgite, prepares functionalized nano net by materialization modification, and load charcoal base small organic molecule and Alkaline minerals, develop acid soil renovation agent, soil acidification can be effectively suppressed, have it is at low cost, environmental-friendly etc. a little, have a extensive future.
Description
Technical field
The present invention relates to a kind of acid soil renovation agents and its preparation method and application, belong to agricultural technology field.
Background technique
China has more than 200,000,000 mu of acid soils, and aggravation situation is presented in soil acidification degree.Acidified soil is mainly distributed
In south China, the basic reason of soil acidification is that alkali solution-off makes soil become allite.South is rainy to be easy to cause soil
Middle alkali cation (Ca2+、Mg2+、K+、Na+) leaching is lost, thus the adsorption site of soil colloids easily by external input and
The H of plant root exudation+It occupies, these H+Make Al in soil3+It releases and hydrolyzes and generate H+, exacerbate soil acidification.Soil
Acidification will lead to Trace Elements in Soil loss, causes nutritional deficiency, influences crop yield and quality, becomes and restricts China's agricultural
The key factor of sustainable production.
Existing acid soil improvement technology mainly includes the modes such as application quick lime, organic fertilizer, they can be in certain journey
Degree inhibits soil acidification, but deficiency is individually present: 1) quick lime easily leads to soil hardening, and destroys soil ecology balance；2) have
Machine fertilizer dosage is big, and consuming is a large amount of artificial, at high cost.These deficiencies limit them and are widely applied.Therefore, there is an urgent need to pass through section
Skill innovation, researches and develops inexpensive, light simplified acid soil renovation agent.
Summary of the invention
The technical problems to be solved by the present invention are: existing acid soil Rate of Organic Fertilizer is big, consumption is artificial, the skills such as at high cost
Art problem.
In order to solve the above-mentioned technical problems, the present invention provides a kind of preparation method of acid soil renovation agent, features
It is, comprising the following steps:
Step 1): the stalk of crushing is mixed in proportion with cow dung, adds mixture in water, is mixed
Liquid；
Step 2): after adding ferrous sulfate and hydrogen peroxide into the mixed liquor that step 1) obtains, pH value is adjusted to 2~4, often
Temperature stirring, sieving obtain carbon-based small organic molecule liquid；
Step 3): adding red mud into the carbon-based small organic molecule liquid that step 2) obtains, after stirring at normal temperature, by pH value tune
To 7~9, then dries, crushes；
Step 4): step 3) is obtained into powder and is mixed in proportion with attapulgite, charcoal, potassium carbonate, acid is obtained
Property soil-repairing agent.
Preferably, the stalk in the step 1) is wheat, rice or corn stover, and the length is 1~20cm.
Preferably, the water content of cow dung is 40~80wt% in the step 1)；Stalk and the mass ratio of cow dung be (2~
4): (3~5)；The concentration of obtained mixed liquor is 100~300g/L.
Preferably, the additive amount of ferrous sulfate is 3~5g/L mixed liquor in the step 2)；The additive amount of hydrogen peroxide is 10
~30mL/L mixed liquor；The parameter of stirring is 100~400rpm, 2~5h；30-50 mesh is crossed after stirring.
Preferably, the regulator of pH value uses sulfuric acid in the step 2).
Preferably, the mesh number of red mud is 100~200 mesh in the step 3), and additive amount is that 100~200g/L is carbon-based organic
Small molecule liquid；The parameter of stirring is 100~400rpm, 10~20min；The temperature of drying is 50~100 DEG C；It is crushed after drying
To 100~200 mesh.
Preferably, the regulator of pH value uses potassium hydroxide in the step 3).
Preferably, the fineness of attapulgite is 100-200 mesh in the step 4), and the fineness of charcoal is 100-200 mesh,
The fineness of potassium carbonate is 100-200 mesh.
Preferably, the mass ratio of powder and attapulgite, charcoal, potassium carbonate is (3~5) in the step 4): (2~
4): (2~4): (1~2).
The present invention also provides acid soil renovation agents made from a kind of preparation method of above-mentioned acid soil renovation agent.
The present invention also provides the applications of above-mentioned acid soil renovation agent, which is characterized in that repairs the acid soil
Agent is spread fertilizer over the fields with 50-100kg/ mus of ratio uniform in the surface of acid soil, then rotary tillage.
Preferably, the pH value of the acid soil is 4~6；After 30 days, pH value improves 0.5~1.
The present invention provides a kind of acid soil renovation agent, the renovation agent is by natural nano clay and charcoal base manure, alkaline mine
Object and pH sustained-release materials compound.Compared with prior art, the beneficial effects of the present invention are:
1) soil is improved to the adsorption capacity of alkali cation by wherein natural nano clay, reduces alkali cation
Leaching loss；
2) edaphon is activated by charcoal base small organic molecule, increases the soil organism, improve the suction of alkali cation
Attached ability；
3) pass through the H+ in Alkaline minerals and in soil.This three zones synergistic effect, reaches the mesh for repairing acid soil
's.
The project implementation will effectively facilitate acid soil improvement, for the development of China's agricultural high quality and rural strategy to revitalize
Implementation effective science and technology support is provided.
Specific embodiment
In order to make the present invention more obvious and understandable, it is hereby described in detail below with preferred embodiment.
Embodiment 1
1) stalk of crushing (wheat stalk, 1cm long) and cow dung (water content 40wt%) is mixed according to the mass ratio of 2:3
It is even, and be added to the water, obtain the mixed solution that concentration is 100g/L；
2) ferrous sulfate (3g/L) and hydrogen peroxide (10mL/L) are added into mixed solution obtained in (1), and use sulfuric acid
Its pH is adjusted to 2, stirring at normal temperature (100rpm) 2 hours crosses 30 meshes, obtains carbon-based small organic molecule liquid；
3) red mud (100 mesh, 100g/L) is added into remaining liq obtained in (2), 10 points of stirring at normal temperature (100rpm)
Clock, and add potassium hydroxide and pH is adjusted to 7 by solution, and dried at 50 DEG C, it is crushed to 100 mesh；
4) powder and attapulgite (100 mesh), charcoal (100 mesh) and potassium carbonate (100 mesh) will be obtained in (3) according to 3:
The mass ratio of 2:2:1 mixes, and obtains acid soil renovation agent；
5) renovation agent is uniformly spread fertilizer over the fields on the surface soil (pH 4), then rotary tillage according to 50 kgs/acre, after 30 days, soil
Earth pH value improves 0.5.
Embodiment 2
1) stalk of crushing (rice straw, 10cm long) and cow dung (water content 60wt%) is mixed according to the mass ratio of 3:4
It is even, and be added to the water, obtain the mixed solution that concentration is 200g/L；
2) ferrous sulfate (4g/L) and hydrogen peroxide (20mL/L) are added into mixed solution obtained in (1), and use sulfuric acid
Its pH is adjusted to 3, stirring at normal temperature (300rpm) 3 hours crosses 40 meshes, obtains carbon-based small organic molecule liquid；
3) red mud (150 mesh, 150g/L) is added into remaining liq obtained in (2), 150 points of stirring at normal temperature (200rpm)
Clock, and add potassium hydroxide and pH is adjusted to 8 by solution, and dried at 80 DEG C, it is crushed to 150 mesh；
4) powder and attapulgite (150 mesh), charcoal (150 mesh) and potassium carbonate (150 mesh) will be obtained in (3) according to 4:
The mass ratio of 3:3:1.5 mixes, and obtains acid soil renovation agent；
5) renovation agent is uniformly spread fertilizer over the fields on the surface soil (pH 5), then rotary tillage according to 70 kgs/acre, after 30 days, soil
Earth pH value improves 0.7.
Embodiment 3
1) stalk of crushing (corn stover, 20cm long) and cow dung (water content 80wt%) is mixed according to the mass ratio of 4:5
It is even, and be added to the water, obtain the mixed solution that concentration is 300g/L；
2) ferrous sulfate (5g/L) and hydrogen peroxide (30mL/L) are added into mixed solution obtained in (1), and use sulfuric acid
Its pH is adjusted to 4, stirring at normal temperature (400rpm) 5 hours crosses 50 meshes, obtains carbon-based small organic molecule liquid；
3) red mud (200 mesh, 200g/L) is added into remaining liq obtained in (2), 20 points of stirring at normal temperature (400rpm)
Clock, and add potassium hydroxide and pH is adjusted to 9 by solution, and dried at 100 DEG C, it is crushed to 200 mesh；
4) powder and attapulgite (200 mesh), charcoal (200 mesh) and potassium carbonate (200 mesh) will be obtained in (3) according to 5:
The mass ratio of 4:4:2 mixes, and obtains acid soil renovation agent；
5) renovation agent is uniformly spread fertilizer over the fields on the surface soil (pH 5), then rotary tillage according to 100 kgs/acre, after 30 days,
Soil pH value improves 1.
Claims (10)
1. a kind of preparation method of acid soil renovation agent, which comprises the following steps:
Step 1): the stalk of crushing is mixed in proportion with cow dung, adds mixture in water, obtains mixed liquor；
Step 2): after adding ferrous sulfate and hydrogen peroxide into the mixed liquor that step 1) obtains, pH value is adjusted to 2~4, room temperature stirs
It mixes, is sieved, obtains carbon-based small organic molecule liquid；
Step 3): adding red mud into the carbon-based small organic molecule liquid that step 2) obtains, and after stirring at normal temperature, pH value is adjusted to 7
~9, it then dries, crush；
Step 4): step 3) is obtained into powder and is mixed in proportion with attapulgite, charcoal, potassium carbonate, acid soil is obtained
Earth renovation agent.
2. the preparation method of acid soil renovation agent as described in claim 1, which is characterized in that the stalk in the step 1)
For wheat, rice or corn stover, the length is 1~20cm；The water content of cow dung is 40~80wt%；The matter of stalk and cow dung
Amount is than being (2~4): (3~5)；The concentration of obtained mixed liquor is 100~300g/L.
3. the preparation method of acid soil renovation agent as described in claim 1, which is characterized in that sulfuric acid is sub- in the step 2)
The additive amount of iron is 3~5g/L mixed liquor；The additive amount of hydrogen peroxide is 10~30mL/L mixed liquor；The parameter of stirring be 100~
400rpm, 2~5h；30-50 mesh is crossed after stirring.
4. the preparation method of acid soil renovation agent as described in claim 1, which is characterized in that pH value in the step 2)
Regulator uses sulfuric acid.
5. the preparation method of acid soil renovation agent as described in claim 1, which is characterized in that red mud in the step 3)
Mesh number is 100~200 mesh, and additive amount is the carbon-based small organic molecule liquid of 100~200g/L；The parameter of stirring be 100~
400rpm, 10~20min；The temperature of drying is 50~100 DEG C；100~200 mesh are crushed to after drying.
6. the preparation method of acid soil renovation agent as described in claim 1, which is characterized in that pH value in the step 3)
Regulator uses potassium hydroxide.
7. the preparation method of acid soil renovation agent as described in claim 1, which is characterized in that concave convex rod in the step 4)
The fineness of soil is 100-200 mesh, and the fineness of charcoal is 100-200 mesh, and the fineness of potassium carbonate is 100-200 mesh；Powder with it is recessed
Convex stick soil, charcoal, potassium carbonate mass ratio be (3~5): (2~4): (2~4): (1~2).
8. acid soil reparation made from a kind of preparation method of acid soil renovation agent described in claim 1-7 any one
Agent.
9. a kind of application of acid soil renovation agent according to any one of claims 8, which is characterized in that by the acid soil renovation agent
It is spread fertilizer over the fields with 50-100kg/ mus of ratio uniform in the surface of acid soil, then rotary tillage.
10. application as claimed in claim 9, which is characterized in that the pH value of the acid soil is 4~6；After 30 days, pH
Value improves 0.5~1.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110947364A (en) * | 2019-12-12 | 2020-04-03 | 甘肃农业大学 | Heavy metal contaminated soil remediation agent and application thereof |
| CN111826165A (en) * | 2020-06-23 | 2020-10-27 | 成都新柯力化工科技有限公司 | Acidified soil cellulose-based modifier and preparation method thereof |
| CN113185334A (en) * | 2021-05-19 | 2021-07-30 | 东华大学 | Method for preparing organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure |
| CN113372923A (en) * | 2021-07-01 | 2021-09-10 | 秦豫川 | Preparation method of acidic soil remediation agent |
| CN113617820A (en) * | 2021-08-18 | 2021-11-09 | 东华大学 | Passivation method and application of heavy metals in red mud |
| CN111269724B (en) * | 2020-03-10 | 2021-12-24 | 中国科学院合肥物质科学研究院 | Preparation method of acidic soil remediation agent, prepared soil remediation agent and application |
| CN114733480A (en) * | 2022-03-28 | 2022-07-12 | 上海园林绿化建设有限公司 | Modified biochar and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110947364A (en) * | 2019-12-12 | 2020-04-03 | 甘肃农业大学 | Heavy metal contaminated soil remediation agent and application thereof |
| CN111269724B (en) * | 2020-03-10 | 2021-12-24 | 中国科学院合肥物质科学研究院 | Preparation method of acidic soil remediation agent, prepared soil remediation agent and application |
| CN111826165A (en) * | 2020-06-23 | 2020-10-27 | 成都新柯力化工科技有限公司 | Acidified soil cellulose-based modifier and preparation method thereof |
| CN113185334A (en) * | 2021-05-19 | 2021-07-30 | 东华大学 | Method for preparing organic-inorganic compound fertilizer by quickly decomposing livestock and poultry manure |
| CN113372923A (en) * | 2021-07-01 | 2021-09-10 | 秦豫川 | Preparation method of acidic soil remediation agent |
| CN113617820A (en) * | 2021-08-18 | 2021-11-09 | 东华大学 | Passivation method and application of heavy metals in red mud |
| CN114733480A (en) * | 2022-03-28 | 2022-07-12 | 上海园林绿化建设有限公司 | Modified biochar and preparation method thereof |
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