CN107141101B - The fertilizers of repairing heavy metal in soil - Google Patents
The fertilizers of repairing heavy metal in soil Download PDFInfo
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- CN107141101B CN107141101B CN201710417769.7A CN201710417769A CN107141101B CN 107141101 B CN107141101 B CN 107141101B CN 201710417769 A CN201710417769 A CN 201710417769A CN 107141101 B CN107141101 B CN 107141101B
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Soil Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of fertilizers of repairing heavy metal in soil, are mainly mixed with by fertilizer and heavy metal absorbent, and the heavy metal absorbent is porous ceramic film material, and the aperture of the porous ceramic film material is 5-35nm, specific surface area 240-300m2/g.The present invention mutually cooperates with heavy metal absorbent and Fertilizer combination, the two, and heavy metal absorbent is made to significantly improve the adsorption capacity of heavy metal, achieves unexpected technique effect.
Description
Technical field
The invention belongs to the technical field of agricultural fertilizer more particularly to a kind of functional fertilizers of energy repairing heavy metal in soil
Material.
Background technology
With the quick and extensive development of modern society and industry, a large amount of waste water, exhaust gas, solid waste are generated therewith
The modern industrializations pollutant such as object, causes to seriously affect to human society and Global Ecological.And among these especially with soil pollution most
For protrusion, because soil also brings up the mankind while carry the mankind.Heavy metal pollution of soil is the one of modern industrial society
Big disastrous effect, first contaminated soil, and then polluted source；Secondly by biological chain, it is enriched in plant, animal and the mankind.Plant,
Special crops are animal and the main food source of people, therefore plant is the initial victim of heavy metal pollution of soil, by
In the main undertaker that the presence of bioconcentration and heavy metal pollution of soil are caused harm.Heavy metal pollution of soil is caused harm plant
The principle of object is that root system of plant can generate toxic action after absorbing the heavy metal in soil to the eubolism of itself,
For example influence the activity of metabolic enzyme, the transhipment of the other mineral elements of interference and the absorption etc. of the necessary element of influence.Due to plant
Eubolism is interfered, and cannot obtain from soil must nutrient, it is impaired to directly result in root system, yield and
Quality is affected, and plant life cycle shortens or even premature death.Due in nature there are biological chain, the weight in soil
Metal can be enriched to food chain transport in animal and human body, in turn resulted in and caused harm.If the heavy metal in soil can not
It removes effectively and in time, eventually seriously endangers the development of human society.In consideration of it, heavy metal pollution of soil just increasingly by
To the concern of people, become the Significant Problems of Eco-environment that the whole society faces, the research in associated restoration and the field of improvement is also existing
For the emphasis of scientific worker's concern.It for the sustainable development of modern agriculture, ensures food safety, heavy metal pollution of soil is repaiied
Multiple and improvement is the unavoidable reality of modern society.
It is currently applied to the measure of heavy metal-polluted soil reparation and improvement, from being divided into three kinds in nature：Physical method, chemistry side
Method and biological method.Physical method, mainly by way of electromagnetism, the mode of elution, the mode of soil removal and replacement.Electromagnetism transfer removal
Heavy metal is to make heavy metal ion displacement either so that heavy metal is quickly volatilized using electric heating environment using electromagnetic environment, this
To having certain restriction using scale, and there is certain damage to soil.The mode of elution is to be transferred to heavy metal from solid phase
In liquid phase, the heavy metal in recycling liquid phase is relatively ripe, but the big consuming of quantities is more.The mode of soil removal and replacement is mainly
Polluted Soil layer depth is turned over or changed, but quantities is big and palliative.Chemical method is mainly added one in the soil
The substance of wherein heavy metal physicochemical property can be changed a bit so that precipitation occurs for heavy metal, absorption, redox etc. are reacted or
Effect, reduces mobility, absorbed power and the degree that causes harm of heavy metal in soil in this way.Chemical method is also cannot be thorough
Solution heavy metal pollution problem because heavy metal is not detached exclusion by this method from soil be only to change heavy metal
Existence in the soil, if improper measures are it is also possible to cause secondary pollution.Biological method mainly utilizes plant absorption
The characteristic of enriching heavy metal.In contrast rehabilitation cost is relatively low for this method, is suitble to large-scale application, will produce good Ecological Effect
Answer, but this method take it is longer, efficiency is relatively low, specific mechanism of action is fuzzy, useful plant exploitation is urgently to be resolved hurrily.On
The situation of heavy metal pollution of soil can be repaired and improve to a certain extent by stating several method mode, but disadvantage is also bright
Aobvious.So of low cost, reparation is efficiently, measure is simple, has the method for good ecological environment benefit to be heavy metal-polluted soil dirt
Dye is repaired to pursue a goal with what is administered.
After soil is by heavy metal pollution, no longer suitable for cultivation, unless heavy metal contaminants therein are eliminated, otherwise it is
Make to be harvested, also can be the agricultural product of heavy metals exceeding standard, can not enter on the dining table of people.And as a reparation huge sum of money
Belong to, individually progress soil remediation is no doubt feasible, but if rehabilitating soil can will receive while harvesting healthy food
Ecological benefits and economic benefit bumper harvests, here it is the projects of worth research.
Invention content
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, provide one
The fertilizers of kind repairing heavy metal in soil.
In order to solve the above technical problems, technical solution proposed by the present invention is：
A kind of fertilizers of repairing heavy metal in soil, are mainly mixed with by fertilizer and heavy metal absorbent, institute
It is porous ceramic film material to state heavy metal absorbent, and the aperture of the porous ceramic film material is 5-35nm, specific surface area 240-
300m2/g.By itself in the porous ceramic film material of alkalinity, after usually showing the Fertilizer combination of acidity so that porous ceramic film material
The energy-absorbing power of heavy metal is greatly improved, the effective cadmium reduced rate of soil is single use 1.5 times or more when repair materials.
Heavy metal absorbent of the present invention be porous ceramic film material, by Ge Feng tech materials Co., Ltd research and development and
Production, is the novel high self assembly of one kind, intensive function unimolecule, orderly controlled pore, nanocomposite, which has height
Selectively, the advantage of big adsorbance, extremely low energy consumption, long-life, low cost；It is core by modified porous ceramic nanocomposites
" three wastes " processing equipment of assembling has the characteristics that modularization, intelligence, integrated, seriation, has the spy for removing removing heavy metals
Determine function.The porous ceramic film material mainly has six big characteristics：
(1) physics and mechanical stability：It is non-breakable, it does not drift about in the water after adsorbing heavy metal；
(2) chemical stability：Pollutant will not be discharged again because of acid rain or soil acidity or alkalinity variation due to；
(3) biological stability：The nano-pore structure of 5-35nm makes microorganism cannot be introduced into nanometer aperture and turns heavy metal
Turn to the organic heavy metal (such as methyl mercury) of toxicity and mobility bigger；
(4) geological stability：Adsorb passage (1-3 season crop of the porous ceramic film material after heavy metal with the farming time
Plantation), under the effect of gravity gradually downward migrate and finally leave arable layer, there is no may be absorbed into for the root of such plant
These heavy metals being cured, and the cured heavy metal of the porous ceramic film material-nano ceramics heavy metal carrier arable layer it
Under be turned into heavy metallic mineral matter substance, heavy metal no longer migrates into biological chain, no longer causes heavy metal pollution to environment,
Reach the final purpose being passivated on the spot；
(5) protectiveness of soil characteristic and structure：Porous ceramic film material does not absorb alkaline-earth metal, potassium, phosphorus and nutritional ingredient,
Chemicals is not introduced, has the function of that the gas permeability of soil can be improved.
Therefore, the present invention is applied in fertilizer, can also improve soil while providing plant growth nutrient supply
Physics, chemistry and biological character, to reach rehabilitating soil colloid, soil enzyme system and soil aggregate structure, be plant roots
It is that growth and development creates a pleasant ecological environment.
Importantly, since porous ceramic film material itself is in alkalinity, and fertilizer is usually aobvious acid, makes by carrier of fertilizer
The aobvious acid and faintly acid of porous ceramic film material local environment is obtained, and is conducive to heavy metal under acid state and is converted into free state, from
And it is convenient for absorption of the porous ceramic film material to heavy metal, therefore, porous ceramic film material is combined by the present invention with chemical fertilizer so that
Porous ceramic film material significantly improves the adsorption capacity of heavy metal.
Above-mentioned fertilizers, it is preferred that in parts by weight, the fertilizers mainly by 90-99.7 parts of fertilizer with
0.3-10 parts of heavy metal absorbents are mixed with.
Above-mentioned fertilizers, it is preferred that the fertilizer be selected from organic-inorganic complex fertilizer, inorganic compound (conjunction) fertilizer,
It is one or more in organic fertilizer, bulk blended fertilizer.
Above-mentioned fertilizers, it is preferred that press mass percentage, the total nutrient of the organic-inorganic complex fertilizer is
25%~35%, organic matter 15~25%, chlorion≤3.0%, moisture≤12%, fineness be 40~60 mesh, pH be 5.5~
7.0。
Above-mentioned fertilizers, it is preferred that press mass percentage, the total nutrient 6%~10% of the organic fertilizer has
Machine matter content 45~80%, moisture≤30%, pH are 4.5~7.0；Living bacteria count in the organic fertilizer is 0.2 hundred million/g~1
Hundred million/g.
Above-mentioned fertilizers, it is preferred that the organic matter be in rapeseed meal, offal, offal, feces of livestock and poultry one kind or
Several is raw material, and addition accounts for what fermentation after the fermenting agent of raw material weight 0.25%-1% was prepared.
Above-mentioned fertilizers, it is preferred that inorganic compound (conjunction) fertilizer is by urea, ammonium nitrate phosphorus, monoammonium phosphate, chlorination
Several compound techniques of passing through in ammonium, sulphur ammonium, potassium chloride and potassium sulfate are made.
An above-mentioned fertilizers, it is preferred that the bulk blended fertilizer is blended with using resin-bonded grinding wheel as primary raw material
Grain urea, particle monoammonium phosphate, granular ammonium chloride, particle sulphur ammonium, granule potassium chloride, granular potassium sulfate, particle trace element
It is one or more.
Above-mentioned fertilizers, it is preferred that press mass percentage, total nutrient >=35% of the bulk blended fertilizer, chlorine from
Son≤3.0%, moisture≤2%, granularity (grain size 1mm-4.75mm or 3.35mm-5.60mm) >=90%, moderate-element content
>=2%, micronutrient levels >=0.02%.
Above-mentioned fertilizers, it is preferred that during fertilising, uniformly spread fertilizer over the fields in soil table with 50-120kg dosages per acre
Then face is ploughed.
Compared with the prior art, the advantages of the present invention are as follows：
(1) by heavy metal absorbent and Fertilizer combination, the two mutually cooperates with the present invention, makes heavy metal absorbent to heavy metal
Adsorption capacity significantly improve, achieve unexpected technique effect.
(2) multi-Functional Fertilizers of repairing heavy metal in soil of the invention, contain a large amount of, the middle amount needed for crop growth
And trace element, different plantation products or crop sufficient nutrient are provided, the product of the repairing heavy metal in soil is administered simultaneously,
It can be while harvesting crops, the effect of playing repairing polluted soil.
(3) multi-Functional Fertilizers of repairing heavy metal in soil of the invention can obtain ecological benefits and economic benefit simultaneously.
(4) multi-Functional Fertilizers of repairing heavy metal in soil of the invention, it is safe and non-toxic not will produce secondary pollution, using side
Just, without individually doing the operation of repairing heavy metal in soil, have the ultrahigh in efficiency of absorption heavy metal, amount very big, and there is pole
Good selectivity.
Specific implementation mode
To facilitate the understanding of the present invention, it more comprehensively, is meticulously retouched below in conjunction with preferred embodiment to inventing to do herein
It states, but protection scope of the present invention is not limited to following specific examples.
Unless otherwise defined, all technical terms used hereinafter are generally understood meaning phase with those skilled in the art
Together.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention's
Protection domain.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1：
A kind of fertilizers of the repairing heavy metal in soil of the present invention, mainly by the inorganic compounds of the 24-10-12 of 95kg (conjunction)
Fertilizer (by urea, ammonium nitrate phosphorus, monoammonium phosphate, ammonium chloride, sulphur ammonium, potassium chloride and potassium sulfate by compound technique make and
At) and the porous ceramic film material of 5kg be mixed with, the aperture of the porous ceramic film material is 5-35nm, and specific surface area is
240-300m2/g。
1, test site：Tongren district Guizhou Province.
2, test material：
Fertilizer variety：The fertilizers of the repairing heavy metal in soil of the present embodiment, inorganic compound (conjunction) fertilizer, inorganic compound
(conjunction) fertilizer+porous ceramic film material is separately handled；
Crop varieties：Early rice, strain two excellent 1.
3, experimental design：
Processing 1：Using the fertilizers of the repairing heavy metal in soil of the present embodiment, mu applies 75kg；
Processing 2：Using the inorganic fertilizer of the equal nutrient contents proportioning without porous ceramic film material, mu applies 75kg；
Processing 3：The inorganic fertilizer of equal nutrient contents proportioning of the first application without porous ceramic film material, then using porous
Ceramic material, the total dosage of the two and processing 1 are identical.
Rice is using unified nursery, unified to transplant, unified production measure.3 repetitions of each processing setting, each cell face
Product is 133.3m2.Dry weight is singly shone and claimed to single receive, and Plant Height of Rice, Miho long, tiller number, mass of 1000 kernel and setting percentage etc. are collected before harvesting
Data.In addition to this, content of beary metal is carried out to rice grain, plant and soil and measures analysis.
4, result and analysis：
In general, by the soil of heavy metal pollution, if not reaching certain pollution level, rice still can give birth to
Long harvest, will not even have an impact yield.The rice only obtained in this case is heavy metals exceeding standard, people's food
After harm can be generated to body.And if pollute it is more serious if, rice growth is affected, yield also accordingly by
It influences.Test data shows to test each cell, and soil pollution not up to influences experiment Yield of Rice Varieties before treatment
Degree among table 1, compares explainable this point between processing 1, processing 2 and processing 3.
1 different disposal of table and rice yield
Table 2 is the rice economic conditions of different disposal, shows the regional heavy metal-polluted soil of experiment by the test data in table 2
The rice normal growth and development that pollution effect is arrived, but lesser extent.After heavy metal contaminants enter soil, what is influenced first is
Soil environment and structure, such as soil enzyme system, P in soil H, soil aggregate structure etc..Into after plant, start to interfere plant
Normal Physiological and Biochemical Metabolism process.It is affected as a result, plant absorbs nutrient from the external world, therefore effective point
Tiller, plant height, full seed degree etc. are influenced to different extents.
2 different disposal of table and Economic Character of Rice
Under normal circumstances, soil is the range of 0-20cm and most of system of fibrous root crops suitable for the soil horizon of farming
The soil horizon that root system is primarily present.The soil of deeper has crop root or other field biologicals exist, but relatively
It is few.Test data shows and (is shown in Table 3), after it applied the fertilizers of repairing heavy metal in soil of the present invention, a huge sum of money in soil
Belong to content significantly to decline, content of beary metal is no longer exceeded in crop product.
3 different disposal of table influences heavy metal content in soil
Embodiment 2：
A kind of fertilizers of the repairing heavy metal in soil of the present invention, mainly by the bulk blended fertilizer of 95kg (26-10-12, always
Nutrient >=48%, chlorion≤3.0%, moisture≤2%, granularity (grain size 1mm-4.75mm) >=90%, moderate-element content
>=2%, micronutrient levels >=0.02%) and the porous ceramic film material of 5kg be mixed with, the hole of the porous ceramic film material
Diameter is 5-35nm, specific surface area 240-300m2/g。
1, test site：Changsha, Zhuzhou, Xiang Tan
2, test material：
Fertilizer variety：The fertilizers of the repairing heavy metal in soil of the present embodiment, Slow release bulk blend fertilizer, Slow release bulk blend fertilizer
+ porous ceramic film material is separately handled
Crop varieties：Late rice, strain two excellent 1
3, experimental design：
Processing 1：Using the fertilizers of the repairing heavy metal in soil of the present embodiment, mu applies 65kg；
Processing 2：Using the Slow release bulk blend fertilizer of the equal nutrient contents proportioning without porous ceramic film material, mu applies 65kg；
Processing 3：The Slow release bulk blend fertilizer that equal nutrient contents of the first application without porous ceramic film material match, is then applied again
Porous ceramic film material, the total dosage of the two and processing 1 are identical.
Rice is using unified nursery, unified to transplant, unified production measure.3 repetitions of each processing setting, each cell face
Product is 133.3m2.Dry weight is singly shone and claimed to single receive, and Plant Height of Rice, Miho long, tiller number, mass of 1000 kernel and setting percentage etc. are collected before harvesting
Data.In addition to this, content of beary metal is carried out to rice grain, plant and soil and measures analysis.
4, result and analysis：
Test data shows to test each cell, and soil pollution not up to influences experiment Yield of Rice Varieties before treatment
Degree, among table 4, explainable this point is compared between processing 1, processing 2, processing 3.In this way that is not reaching experimental field
To certain pollution level, rice still can grow harvest, not seriously affected to yield generation.But using fertilizers
Yield is improved to a certain extent.
4 different disposal of table and rice yield
5 different disposal of table and rice cadmium content
Such as 5 test data of table, in the case where applying repairing heavy metal in soil fertilizers, if heavy metal in soil content
It is low, can heavy metal in rice be quickly reduced to level of security.
6 different disposal of table and soil cadmium content (arable layer)
As shown in Table 6, heavy metal in soil content reduction level has much relations with heavy metal in soil content, if contained
The high absolute magnitude then reduced of amount is also high, and the low absolute magnitude of content sinking is also low.
Embodiment 3：
A kind of fertilizers of the repairing heavy metal in soil of the present invention, mainly by the organic-inorganic complex fertilizer of 95kg
The porous ceramic film material of (13-5-8) and 5kg are mixed with, and the aperture of the porous ceramic film material is 5-35nm, specific surface area
240-300m2/g；Total nutrient >=26% of the organic-inorganic complex fertilizer, organic matter >=20%, chlorion≤3.0%, moisture
≤ 12%, fineness is 40~60 mesh, and pH is 5.5~7.0.
1, test site：Hunan Changning
2, test material
Fertilizer variety：The fertilizers of repairing heavy metal in soil, compound organic and inorganic fertilizer type fertilizer, compound organic and inorganic fertilizer
Type fertilizer+porous ceramic film material
Crop varieties：Late rice, strain two excellent 1
3, experimental design
Processing 1：Using the fertilizers of the repairing heavy metal in soil of the present embodiment, mu applies 70kg
Processing 2：Using the fertilizer of the equal nutrient contents proportioning without porous ceramic film material, mu applies 70kg
Processing 3：The compound organic and inorganic fertilizer type fertilizer that equal nutrient contents of the first application without porous ceramic film material match, so
Afterwards using porous ceramic film material, the total dosage of the two and processing 1 are identical.
Rice is using unified nursery, unified to transplant, unified production measure.3 repetitions of each processing setting, each cell face
Product is 133.3m2.Dry weight is singly shone and claimed to single receive, and Plant Height of Rice, Miho long, tiller number, mass of 1000 kernel and setting percentage etc. are collected before harvesting
Data.In addition to this, content of beary metal is carried out to rice grain, plant and soil and measures analysis.
4, result and analysis
Test data shows to test each cell, and soil pollution not up to influences experiment Yield of Rice Varieties before treatment
Degree, among table 7, handle and compare explainable this point between 1 three testing sites and processing 2 respectively.Do not have experimental field
Reach certain pollution level, rice still can grow harvest, not seriously affected to yield generation.Multispots trial also illustrates,
Yield is improved to a certain extent using the fertilizers of the repairing heavy metal in soil of the present invention.
7 different disposal of table and rice yield
8 different disposal of table and rice cadmium content
As shown in table 8, using the fertilizers of the repairing heavy metal in soil of the present invention, the cadmium content in rice reduces
80%~90%, so that " cadmium rice " is become " the safe rice " of the requirement that is up to state standards.By 3 contrast tables of processing 1 and processing
Bright, repairing heavy metal in soil multi-Functional Fertilizers of the invention are with obvious effects to the drop cadmium of rice to be better than being used separately fertilizer and a huge sum of money
Belong to adsorbent.
9 different disposal of table and soil cadmium content (arable layer)
As shown in table 9, the fertilizers of the repairing heavy metal in soil of the multispots trial display application present invention can effectively drop
Low heavy metal in soil (cadmium) content.Repairing heavy metal in soil functional fertilizer of the invention is shown by processing 1 and 3 comparison of processing
Material is with obvious effects to the drop cadmium of soil to be better than being used separately fertilizer and heavy metal absorbent.
Embodiment 4：
A kind of fertilizers of the repairing heavy metal in soil of the present invention, mainly by the organic-inorganic complex fertilizer of 95kg
The porous ceramic film material of (13-5-8) and 5kg are mixed with, and the aperture of the porous ceramic film material is 5-35nm, specific surface area
240-300m2/g；Total nutrient >=26% of the organic-inorganic complex fertilizer, organic matter >=20%, chlorion≤3.0%, moisture
≤ 12%, fineness is 40~60 mesh, and pH is 5.5~7.0.
1, test site：Zhuzhou,hunan.
2, test material：
Fertilizer variety：The fertilizers of repairing heavy metal in soil, organic-inorganic complex fertilizer (13-5-8), porous ceramics
Material；
Crop varieties：Late rice, strain two excellent 1.
3：Experimental design：
Processing 1：Using the fertilizers of the repairing heavy metal in soil of the present embodiment, mu applies 70kg
Processing 2：Using the fertilizer for waiting nutrient contents proportioning with processing 1 without porous ceramic film material, mu applies 70kg, in addition
It is administered alone and 1 equivalent porous ceramic film material of processing (not with Fertilizer combination application)；
Processing 3：Using the fertilizer for waiting nutrient contents proportioning with processing 1 without porous ceramic film material, mu applies 70kg.
Rice is using unified nursery, unified to transplant, unified production measure.3 repetitions of each processing setting, each cell face
Product is 133.3m2.Dry weight is singly shone and claimed to single receive, and Plant Height of Rice, Miho long, tiller number, mass of 1000 kernel and setting percentage etc. are collected before harvesting
Data.In addition to this, content of beary metal is carried out to rice grain, plant and soil and measures analysis.
4, result and analysis
10 different disposal of table and rice yield
11 different disposal of table and rice cadmium content
12 different disposal of table and soil cadmium content (arable layer)
Test data shows to test each cell, and soil pollution not up to influences experiment Yield of Rice Varieties before treatment
Degree, by the processing 1 of table 10, processing 2 respectively with the explainable this point of 3 comparison of processing.Do not reach experimental field certain
Pollution level, rice still can grow harvest, not seriously affected to yield generation.Multispots trial also illustrates, is polluting not
When reaching the degree for influencing paddy growth, it can be carried to a certain extent using the fertilizers of the repairing heavy metal in soil of the present invention
The high yield of rice.
It can be confirmed from the test result of table 11 and table 12, fertilizer and porous material are used in mixed way by the present invention can
It is significantly improved with the adsorption capacity to heavy metal.
Claims (6)
1. a kind of fertilizers of repairing heavy metal in soil, which is characterized in that mainly by 90-99.7 parts of acidic fertiliziers and 0.3-10
Part heavy metal absorbent is mixed with, and the heavy metal absorbent is porous ceramic film material, the porous ceramic film material
Aperture is 5-35nm, specific surface area 240-300m2/g；The porous ceramic film material is in alkalinity；The acidic fertilizier, which is selected from, to be had
One kind in machine-inorganic complex fertilizer, inorganic complex fertilizer, organic fertilizer, bulk blended fertilizer.
2. fertilizers as described in claim 1, which is characterized in that press mass percentage, the organic-inorganic compound mixed fertilizer
The total nutrient of material is 25% ~ 35%, organic matter 15 ~ 25%, chlorion≤3.0%, moisture≤12%, and fineness is 40 ~ 60 mesh, described to have
The pH of machine-inorganic complex fertilizer is 5.5 ~ 7.0.
3. fertilizers as described in claim 1, which is characterized in that press mass percentage, the total of the organic fertilizer supports
It is divided into 6% ~ 10%, the content of organic matter 45 ~ 80%, moisture≤30%；Living bacteria count in the organic fertilizer is 0.2 hundred million/g ~ 1
The pH of hundred million/g, the organic fertilizer are 4.5 ~ 7.0.
4. fertilizers as claimed in claim 2 or claim 3, which is characterized in that the organic matter is with rapeseed meal, offal, offal, poultry
One or more of poultry manure is raw material, and addition accounts for what fermentation after the fermenting agent of raw material weight 0.25%-1% was prepared.
5. fertilizers as described in claim 1, which is characterized in that the inorganic complex fertilizer is by urea, ammonium nitrate phosphorus, phosphoric acid
Several compound techniques of passing through in monoammonium, ammonium chloride, sulphur ammonium, potassium chloride and potassium sulfate are made.
6. fertilizers as described in claim 1, which is characterized in that total nutrient >=35% of the bulk blended fertilizer, chlorion≤
3.0%, moisture≤2%；The bulk blended fertilizer is blended with granular urea, particle phosphoric acid using resin-bonded grinding wheel as primary raw material
Monoammonium, granular ammonium chloride, particle sulphur ammonium, granule potassium chloride, granular potassium sulfate, particle trace element it is one or more.
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| CN201710417769.7A CN107141101B (en) | 2017-06-06 | 2017-06-06 | The fertilizers of repairing heavy metal in soil |
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| CN108971211A (en) * | 2018-07-05 | 2018-12-11 | 安徽袁粮水稻产业有限公司 | A kind of method for comprehensive repairing of nickel contamination rice soil |
| CN113087578A (en) * | 2021-03-30 | 2021-07-09 | 中地宝联(北京)国土资源勘查技术开发集团有限公司 | Chemical fertilizer with soil heavy metal restoration function and preparation method thereof |
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| CN101117299A (en) * | 2007-06-29 | 2008-02-06 | 东莞市大众农业科技有限公司 | Process for producing compound fertilizer by tower granulation |
| CN103788960A (en) * | 2014-03-05 | 2014-05-14 | 中国科学院合肥物质科学研究院 | Functional fertilizer and repair agents for repairing soil heavy metal |
| CN104447038A (en) * | 2014-12-15 | 2015-03-25 | 湖南金叶众望科技股份有限公司 | Biological organic/inorganic compound fertilizer as well as preparation method and application of fertilizer |
| CN104525123A (en) * | 2014-12-12 | 2015-04-22 | 格丰科技材料有限公司 | Porous composite material for removing heavy metals in soil and preparation method thereof |
| CN106045553A (en) * | 2016-05-26 | 2016-10-26 | 格丰环保科技有限公司 | Method for preparing porous ceramic material for adsorbing heavy metals |
| CN106699338A (en) * | 2016-11-21 | 2017-05-24 | 上海永通化工有限公司 | Special slow-release bulk blending fertilizer for wheat and preparation method of fertilizer |
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2017
- 2017-06-06 CN CN201710417769.7A patent/CN107141101B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101117299A (en) * | 2007-06-29 | 2008-02-06 | 东莞市大众农业科技有限公司 | Process for producing compound fertilizer by tower granulation |
| CN103788960A (en) * | 2014-03-05 | 2014-05-14 | 中国科学院合肥物质科学研究院 | Functional fertilizer and repair agents for repairing soil heavy metal |
| CN104525123A (en) * | 2014-12-12 | 2015-04-22 | 格丰科技材料有限公司 | Porous composite material for removing heavy metals in soil and preparation method thereof |
| CN104447038A (en) * | 2014-12-15 | 2015-03-25 | 湖南金叶众望科技股份有限公司 | Biological organic/inorganic compound fertilizer as well as preparation method and application of fertilizer |
| CN106045553A (en) * | 2016-05-26 | 2016-10-26 | 格丰环保科技有限公司 | Method for preparing porous ceramic material for adsorbing heavy metals |
| CN106699338A (en) * | 2016-11-21 | 2017-05-24 | 上海永通化工有限公司 | Special slow-release bulk blending fertilizer for wheat and preparation method of fertilizer |
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