CN105838380A - Soil restoration conditioner for treating cadmium pollution - Google Patents
Soil restoration conditioner for treating cadmium pollution Download PDFInfo
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- CN105838380A CN105838380A CN201610253531.0A CN201610253531A CN105838380A CN 105838380 A CN105838380 A CN 105838380A CN 201610253531 A CN201610253531 A CN 201610253531A CN 105838380 A CN105838380 A CN 105838380A
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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
- C09K2101/00—Agricultural use
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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)
- 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)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a soil restoration conditioner for treating cadmium pollution. The soil restoration conditioner comprises 40-50 parts of lime, 45-60 parts of grass carbon and 3-8 parts of zinc sulfate. The preparation method comprises the following steps: proportioning the lime, zinc sulfate and grass carbon according to weight, drying, pulverizing, screening, and stirring and mixing to obtain the soil restoration conditioner. The soil restoration conditioner can simultaneously enhance the pH value of the soil, lower the effective state of active Cd, prevent the chemical and physical properties of the soil from deterioration and increase soil organic matters. By conditioning the acidic barriers of soil, restoring the soil heavy metal pollution and enhancing the soil fertility, the conditioner avoids the problems of poor treatment efficacy, soil hardening, salinization, loss of organic matters and elements N, P and K and unbalanced nutrients caused by the single component, thereby achieving the goals of comprehensively treating cadmium-polluted acidic soil and implementing restoration and fertilization.
Description
Technical field
The present invention relates to agricultural production fertilizer field, be specifically related to a kind of for administering cadmium pollution and the soil remediation conditioner in acid field.
Background technology
Arable land is the base of agricultural production, is the valuable sources depended on for existence and development of the people.The soil erosion of China's heavy metal pollution reaches 300,000,000 mu, accounts for the 1/6 of total area under cultivation, and this shows that the overall situation of China's soil pollution is very tight pretty.Pollution field, South China is polluted based on acid ground and Cd.Quantity of cultivated land is not enough and the biggest obstacle being to restrict China's agricultural production of low quality, improves the fundamental way that farmland quality is China's developing agricultural.Make good use of ground, with supporting, keep the stablizing of farmland quality, it is achieved limited cultivated land resource continuous utilization, be to put the vital task in face of us.
The most common soil conditioner mostly is bacterial type conditioner, is used for improving crop disease prevention antibacterial ability and resistance；Non-bacterial type conditioner has the function of acid adjustment or alkali tune, and conditioning soil pH is to adapt to plant growth.Most products can not be provided simultaneously with the effect that repairing heavy metal in soil pollutes.Laboratory research has and adjusts for soil pH, administer the conditioner research and development of the aspects such as metallic pollution such as Cd, Al, as Calx can be effectively improved acid ground pH；Zinc fertilizer can reduce the crop absorption etc. to Cd.But one matter is difficult to soil comprehensive control, as Calx easily causes soil compaction, salination and Organic Matter Loss, and the soil of various trait has strict demand to Calx usage amount；And zinc fertilizer reduces the crop absorption to useful chemical element simultaneously, affect economic characters and the yield of crop product.
How to obtain effect of integrated pest management preferable combined soil reparation conditioner and become key to the issue.This kind of soil remediation conditioner need to reach several purpose: is effectively improved acid ground pH；Alleviate Cd Pollution in Soil；Ensure soil physical chemistry performance；Avoid nutrient content unbalance；And increase soil fertility simultaneously.
Summary of the invention
It is an object of the invention to the many defects overcoming prior art to exist, it is provided that a kind of safe and reliable combined soil reparation conditioner being used for nursing one's health soil acidity obstacle, repairing heavy metal in soil pollutes and increases soil fertility.
In order to achieve the above object, technical scheme used in the present invention: a kind of soil remediation conditioner for administering cadmium pollution, described soil remediation conditioner includes following components raw material: 40 ~ 50 parts of Calx, the peat composed of rotten mosses 45 ~ 60 parts and 3 ~ 8 parts of zinc sulfate.
Preferably, described soil remediation conditioner also includes Sargassum slag 5 ~ 10 parts.
Preferably, described Sargassum slag is to extract Sargassum active substance by enzyme fermentation technology, is separated with Sargassum slag by seaweed extracted liquor after having fermented, and carries out Sargassum slag drying, pulverization process, obtains the black powder that fineness is 80 ~ 100 mesh.
Preferably, described soil remediation conditioner is applicable to the acid field that pH value is 4.5 ~ 6.5.
The preparation method of a kind of soil remediation conditioner for administering cadmium pollution, is prepared from by following methods:
(1) Calx containing calcium oxide 38 ~ 45% is size-reduced, crosses 230-260 μm standard screen and obtains Calx raw material；
(2) peat composed of rotten mosses containing humic acids 35 ~ 50% is dried or dries to water content≤22%, and size-reduced, 250 μm standard screens excessively obtain peat composed of rotten mosses raw material；
(3) take Calx raw material, peat composed of rotten mosses raw material, zinc sulfate 40 ~ 50 parts of Calx by weight, the peat composed of rotten mosses 45 ~ 60 parts, 3 ~ 8 parts of proportionings of zinc sulfate, be placed in reactor stirring 1 ~ 2h and obtain product；
(4) pack in 12h, store in dry place.
Preferably, described packs, and packaging material have waterproof effect.
Preferably, described soil remediation conditioner is applicable to crop base to be executed.
Preferably, described soil remediation conditioner amount of application is 20 ~ 50Kg/667m2。
Soil remediation conditioner of the present invention, with Calx, the peat composed of rotten mosses, zinc sulfate and Sargassum as primary raw material, forms through scientific formula.Calx can be effectively improved the pH value of acid soil in the south, reduces the effectiveness of heavy metal in soil and free property simultaneously；Zn element can improve the crop antagonism to Cd, reduces the crop absorption to Cd；In conjunction with the heavy metal in the good biological active and multiple functional group chelating soil of humic acids contained in the peat composed of rotten mosses, reduce the activity of heavy metal；Humic acids can reduce paddy field soil oxidation-reduction potential, further such that available state Cd produces chemical precipitation.Further, the humic acid in the peat composed of rotten mosses has certain cushioning effect to the strong basicity of Calx, it is to avoid soil pH excessively promotes；Peat composed of rotten mosses quality is soft, has inspiratory, can effectively nurse one's health the character of the soil water, air and heat, it is to avoid soil materialization property deteriorates and nutrient loss；In the peat composed of rotten mosses rich in organic matter and the nutrient such as mineral, increase soil fertility, its biological active matter confrontation crop growth and body physiological metabolism have stimulation, promote plant growth, improve yield and product quality.
Sargassum is a kind of natural organic matter from ocean, rich in multiple inorganic elements, most with sodium, potassium, ferrum, calcium content, plant growing there is facilitation, and containing several amino acids, polysaccharide, fiber, fatty acid and natural plants growth regulator, nutrient content is higher, either human body or plant all had affinity, plant is improved yield, improving quality and all has potentiation, can promote crop disease-resistant, drought resisting, the anti-adversity ability such as saline and alkaline cold-resistant, anti-, nontoxic with the fertilizer that it is made for raw material,
Harmless, pollution-free, the particularly organic conditioning to soil has other fertilizer especially without superable advantage.
The invention have the benefit that soil remediation conditioner prepared by the present invention can be provided simultaneously with improving soil pH, reducing activity Cd available state, and prevent soil chemistry and physical behavior from deteriorating, increase the feature of the soil organism.Avoid single component to cause governance effects is poor, soil compaction, salination, organic matter and N, P, K element run off, the problem of nutrient imbalance simultaneously.Reach comprehensive control cadmium pollution acid ground, repair and use the fertile purpose coexisted.And product mainly selects natural material to process, nonhazardous, without hormone, noresidue, belong to pollution-free food production data.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment 1
(1) peat composed of rotten mosses raw material: utilize the peat composed of rotten mosses 47.0kg containing humic acids 40% to dry and make water content ＜ 20%, size-reduced, 250 μm standard screens excessively are made；
(2) Calx raw material: utilize the Calx 47.0kg containing calcium oxide 40%, size-reduced, cross 250 μm standard screens and make；
(3) formula: the Calx raw material handled well, peat composed of rotten mosses raw material, adds zinc sulfate 6.0kg and carries out formula, be placed in reactor and be sufficiently stirred for 2h, obtain soil remediation conditioner finished product.
(4) detection packaging: product detects, and containing humic acids 18.8%, calcium oxide 18.8%, Zn content 2.0%, meets product composition requirement；Using waterproofing packing bag hermetic package, the place of being dried stores.
Embodiment 2
(1) peat composed of rotten mosses raw material: utilize the peat composed of rotten mosses 60.0kg containing humic acids 35% to dry and make water content≤22%, size-reduced, 250 μm standard screens excessively are made；
(2) Calx raw material: utilize the Calx 50.0kg containing calcium oxide 38%, size-reduced, cross 250 μm standard screens and make；
(3) formula: the Calx raw material handled well, peat composed of rotten mosses raw material, adds zinc sulfate 8.0kg and carries out formula, be placed in reactor and be sufficiently stirred for 1h, obtain soil remediation conditioner finished product.
(4) detection packaging: product detects, and containing humic acids 18.8%, calcium oxide 18.8%, Zn content 2.0%, meets product composition requirement；Using waterproofing packing bag hermetic package in 12h, the place of being dried stores.
Embodiment 3
(1) peat composed of rotten mosses raw material: utilize the peat composed of rotten mosses 45.0kg containing humic acids 50% to dry and make water content≤21%, size-reduced, 250 μm standard screens excessively are made；
(2) Calx raw material: utilize the Calx 40.0kg containing oxidation Ca45 %, size-reduced, cross 250 μm standard screens and make；
(3) formula: by the Calx raw material handled well, peat composed of rotten mosses raw material, adds that to have pulverized be that the Sargassum slag 5kg and zinc sulfate 3.0kg of 80 mesh carries out proportioning, is placed in reactor and is sufficiently stirred for 2h, obtains soil remediation conditioner finished product.
(4) detection packaging: product detects, and containing humic acids 18.8%, calcium oxide 18.8%, Zn content 2.0%, meets product composition requirement；Using waterproofing packing bag hermetic package in 12h, the place of being dried stores.
Embodiment 4
(1) peat composed of rotten mosses raw material: utilize the peat composed of rotten mosses 45.0kg containing humic acids 45% to dry and make water content≤20%, size-reduced, 250 μm standard screens excessively are made；
(2) Calx raw material: utilize the Calx 50.0kg containing calcium oxide 40%, size-reduced, cross 250 μm standard screens and make；
(3) formula: by the Calx raw material handled well, peat composed of rotten mosses raw material, adds that to have pulverized be that the Sargassum slag 10kg and zinc sulfate 35.0kg of 100 mesh carries out proportioning, is placed in reactor and is sufficiently stirred for 2h, obtains soil remediation conditioner finished product.
(4) detection packaging: product detects, and containing humic acids 18.8%, calcium oxide 18.8%, Zn content 2.0%, meets product composition requirement；Using waterproofing packing bag hermetic package in 12h, the place of being dried stores.
Embodiment 5
Use soil remediation conditioner to improvement soil physical and chemical property effect:
In the acid rice field of pH value 5.0, use the soil remediation conditioner prepared by embodiment 1 effect to improvement soil chemical characteritics.Before late rice rice transplanting, soil remediation conditioner 50kg/667m executed by base23. 1. the process of+local late rice habits fertilization compare (CK) with process and compare, result of the test shows, soil pH value improves 0.3, soil organic matter content improves 0.2g/kg, and alkali-hydrolyzable nitrogen improves 6.0 mg/kg, and available phosphorus improves 0.3mg/kg, available potassium improves 2.0 mg/kg, slowly available potassium improves 1.0 mg/kg, and in soil, activity Cd content declines 26.8%, and in rice, Cd content declines 20.1%.
Soil remediation conditioner 25kg/667 m executed by base23. 2. the process of+local late rice habits fertilization compare (CK) with process and compare, soil pH value improves 0.1, the soil organism declines 0.1g/kg, alkali-hydrolyzable nitrogen improves 4.0 mg/kg, available phosphorus improves 0.4mg/kg, and available potassium declines 1 mg/kg, and slowly available potassium declines 3.0 mg/kg, in soil, activity Cd content declines 17.2%, and in rice, Cd content declines 13.2%.
The impact on soil chemical characteritics of table 1 different disposal
Using the soil remediation conditioner effect to improvement soil physical property: result of the test shows, process and 1. 3. compare with processing, the soil weight declines 0.04g/cm3；In soil, the thick microaggregate of 1-0.05 improves 8.6g/kg, and in soil, 0.05-0.001mm cosmid declines 12.2g/kg.Processing and 2. 3. compare with processing, the soil weight declines 0.02g/cm3, in soil, the thick microaggregate of 1-0.05 improves 5.1g/kg than comparison, and in soil, 0.05-0.001mm cosmid decline 9.8g/kg(is shown in Table 2).
The impact on soil physical property of table 2 different disposal
Embodiment 6
Use the soil remediation conditioner effect to improving late rice economic characters:
Result of the test shows, before late rice rice transplanting, base is executed and prepared gained soil remediation conditioner 50kg/667m by embodiment 12Process 1. with process 3. blank (CK) comparison, average plant height increases 1.6cm, and effective fringe increases by 0.48 ten thousand fringes/667m2, Defined daily doses increases by 6.7, and setting percentage improves 0.8 percentage point, and mass of 1000 kernel increases 0.3g.
Before late rice rice transplanting, soil remediation conditioner 25kg/667m executed by base2Process 2. with process 3. blank (CK) comparison, average plant height increases 0.4cm, and effective fringe increases by 0.16 ten thousand fringes/667m2, Defined daily doses increases by 2.3, and setting percentage improves 0.2 percentage point, and mass of 1000 kernel increases 0.1g(and is shown in Table 3).
The impact on late rice economic characters of table 3 different disposal
Using the soil remediation conditioner effect of increasing production to late rice: result of the test shows, processing 1. Oryza glutinosa average product is 468kg/667m2, 3. compare with processing, averagely increase production 50.0kg/667m2, rate of growth is 12.0%.Processing 2. Oryza glutinosa average product is 444kg/667m2, 3. compare with processing, averagely increase production 26kg/667m2, rate of growth is 6.2%.
The impact on late rice yield of table 4 different disposal
To sum up effect is found out, in the present invention, soil remediation conditioner is effectively improved acid ground pH, reduces soil and crop Cd content, improves soil fertility, recovers soil fertility, can improve crop yield, improving quality.The use of this soil remediation conditioner effectively improves field, makes soil more fertile, and food production is safer, has reached the purpose of increasing both production and income.
Claims (8)
1. one kind for administering the soil remediation conditioner of cadmium pollution, it is characterised in that described soil remediation conditioner includes following components raw material: 40 ~ 50 parts of Calx, the peat composed of rotten mosses 45 ~ 60 parts and 3 ~ 8 parts of zinc sulfate.
Soil remediation conditioner for administering cadmium pollution the most according to claim 1, it is characterised in that described soil remediation conditioner also includes Sargassum slag 5 ~ 10 parts.
Soil remediation conditioner for administering cadmium pollution the most according to claim 2, it is characterized in that, described Sargassum slag is to extract Sargassum active substance by enzyme fermentation technology, after having fermented, seaweed extracted liquor is separated with Sargassum slag, carry out Sargassum slag drying, pulverization process, obtain the black powder that fineness is 80 ~ 100 mesh.
Soil remediation conditioner for administering cadmium pollution the most according to claim 1 and 2, it is characterised in that described soil remediation conditioner is applicable to the acid field that pH value is 4.5 ~ 6.5.
The preparation method of the soil remediation conditioner for administering cadmium pollution the most according to claim 1 or claim 2, it is characterised in that be prepared from by following methods:
(1) Calx containing calcium oxide 38 ~ 45% is size-reduced, crosses 230-260 μm standard screen and obtains Calx raw material；
(2) peat composed of rotten mosses containing humic acids 35 ~ 50% is dried or dries to water content≤22%, and size-reduced, 250 μm standard screens excessively obtain peat composed of rotten mosses raw material；
(3) take Calx raw material, peat composed of rotten mosses raw material, zinc sulfate 40 ~ 50 parts of Calx by weight, the peat composed of rotten mosses 45 ~ 60 parts, 3 ~ 8 parts of proportionings of zinc sulfate, be placed in reactor stirring 1 ~ 2h and obtain product；
(4) pack in 12h, store in dry place.
The preparation method of soil remediation conditioner the most according to claim 5, it is characterised in that described packs, and packaging material have waterproof effect.
The preparation method of soil remediation conditioner the most according to claim 5, it is characterised in that described soil remediation conditioner is applicable to crop base to be executed.
The preparation method of soil remediation conditioner the most according to claim 5, it is characterised in that described soil remediation conditioner amount of application is 20 ~ 50Kg/667m2。
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Cited By (3)
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| CN106518511A (en) * | 2016-10-17 | 2017-03-22 | 中国科学院地球化学研究所 | Treatment method for soil salinization |
| CN107235793A (en) * | 2017-08-03 | 2017-10-10 | 泰普环境科技股份有限公司 | A kind of soil remediation conditioner and its application process for warmhouse booth |
| CN110872517A (en) * | 2019-12-10 | 2020-03-10 | 广东省生态环境技术研究所 | Special lime material for cadmium-polluted acid soil as well as preparation method and application thereof |
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