CN105885856A - Ecological improver for heavy metal pollution of soil and preparation method of improver - Google Patents
Ecological improver for heavy metal pollution of soil and preparation method of improver Download PDFInfo
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- CN105885856A CN105885856A CN201510031428.7A CN201510031428A CN105885856A CN 105885856 A CN105885856 A CN 105885856A CN 201510031428 A CN201510031428 A CN 201510031428A CN 105885856 A CN105885856 A CN 105885856A
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Abstract
The invention discloses an ecological improver for heavy metal pollution of soil. The ecological improver is prepared by mixing, by weight, 50-70 parts of calcium oxide, 26-46 parts of humic acid, 1-3 parts of abscisic acid and 1-3 parts of microelements, decomposing and fermenting the mixture and granulating the fermented mixture, has the advantages of effectively regulating the PH value of the soil, significantly increasing organic matter in the soil, supplementing abscisic acid and the microelements in the soil, achieving the obvious repairing effect after being applied to the soil polluted by heavy metals and the like and can be not only used for heavy metal pollution repairing and ecological improving of the paddy farmland soil in the south of China but also used for heavy metal pollution repairing and ecological improving of the dry soil farmland in the south of China. The invention further discloses a preparation method of the ecological improver for heavy metal pollution of the soil.
Description
Technical field
The present invention relates to recovery technique field, arable land, particularly a kind of heavy metal pollution of soil ecology improvement
Agent and preparation method thereof.
Background technology
In April, 2014, Chinese Ministry of Environmental Protection and Ministry of Land and Resources combine and have issued First National soil pollution situation
Investigation publication, whole nation soil environment situation totally allows of no optimist, and some areas soil pollution is heavier, ploughs
Ground soil environment quality causes anxiety.In different land use type soil, arable soil point position exceeding standard rate
The highest, it is 19.4%.Wherein, heavy metal contaminants be mainly hydrargyrum, arsenic, copper, lead, chromium, zinc,
Nickel, severe contamination agriculture plantation and agricultural product, cause the agricultural product residual quantity of heavy metal in these places
Exceed standard, and cause the decline of the soil compaction in these places, soil fertility, pest and disease damage wildness, agricultural output
Decline with quality, seriously constrain China's agricultural sustainable development.How repairing heavy metal in soil pollutes,
Thus ensure agricultural sustainable development, it is current agricultural circle and a difficult problem that environmental protection circle is paid close attention to jointly.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of heavy metal pollution of soil ecological modifying agent, executes
Can effectively reduce the activity of heavy metal in soil after with, make the agricultural product content of beary metal produced significantly
Reduce, reach state-set standard.
Another technical problem that the invention solves the problems that is to provide a kind of heavy metal pollution of soil ecological modifying agent
Preparation method.
For solving above-mentioned technical problem, the technical solution used in the present invention:
A kind of heavy metal pollution of soil ecological modifying agent, is to be formed by the preparation of raw material of following weight portion:
Calcium oxide 50-70 humic acid 26-46
Abscisic acid 1-3 trace element 1-3
Described trace element is: one in ferrum, manganese, zinc, silicon, two kinds, multiple or whole,
Weight proportion between its each element can be single-candidate, it is possible to for other ratio.
Its technical scheme one optimized is to be formed by the preparation of raw material of following weight portion:
Calcium oxide 60 humic acid 36
Abscisic acid 2 trace element 2
Its technical scheme two optimized is to be formed by the preparation of raw material of following weight portion:
Calcium oxide 70 humic acid 26
Abscisic acid 1 trace element 3
Its technical scheme three optimized is to be formed by the preparation of raw material of following weight portion:
Calcium oxide 50 humic acid 46
Abscisic acid 3 trace element 1
Simultaneously, it is provided that the preparation method of above-mentioned heavy metal pollution of soil ecological modifying agent:
First, pulverize calcium oxide, cross 100 mesh sieves, standby；
Secondly, calcium oxide powder is taken by weight with humic acid, abscisic acid, trace element materials in proportion
Scientific compatibility, mix homogeneously, carry out fast ripe fermentation in being placed in fermentation tank, become thoroughly decomposed into modifying agent raw material group
Close, standby；
3rd, modifying agent material combination to be dried, pulverize, sieved, granularity is less than 0.18mm, standby；
4th, according to conventional extrusion method granular organic fertilizer production method, carry out pelletize, then packaging is i.e.
Become.
The invention has the beneficial effects as follows:
A kind of heavy metal pollution of soil ecological modifying agent of the present invention, with the calcium oxide after becoming thoroughly decomposed, humic
Acid, abscisic acid, trace element are raw material, through becoming thoroughly decomposed fermentation, pelletize, and the heavy metal-polluted soil made
Pollution ecology modifying agent.Product can effectively be repaired the soil by heavy metal pollution, reduce a huge sum of money in soil
The activity belonged to, the absorption of suppression crops heavy metal.
The activity of heavy metal in soil is substantially affected by solution acidity, and pH is the highest, and its activity is the most weak.
Therefore, liming material in by the soil of heavy metal pollution, as calcium hydroxide, calcium carbonate,
Calcium silicates etc. improve soil pH, can be effectively reduced the effectiveness of heavy metal.Calx, boron mud,
In zinc sulfate, calcium superphosphate, nitrogenous fertilizer 5 heavy metal species soil modifying agent, best with Calx effect.Acid soil
Earth liming has certain inhibitory action to rice absorbing heavy metal, and inhibition increases with lime requirement
Add and increase.Liming on the soil of heavy metal pollution, general per hectare soil application 500kg,
Make heavy metal in soil available heavy metal content reduce about 15%, make Oryza sativa L., wheat seed, jade
In rice seed and Chinese cabbage, content of beary metal declines 55.9%, 50%, 21% and 43% respectively.Therefore,
On heavy-metal contaminated soil, liming improves the pH value of soil is to reduce heavy metal uptake by rice
One of effective measures.
In the soil of heavy metal pollution, apply humic acid, on the one hand can increase soil fertility, conditioned soil
Earth character, on the other hand can preferably alleviate again the biological effectiveness of heavy metal.Due to big in humic acid
Measure the existence of functional group and there is bigger specific surface area, heavy metal in soil ion and its shape can be promoted
Become heavy metal organic complex, increase the absorbability of soil heavy metal, improve soil heavy metal
Resiliency, thus reduce Oryza sativa L. to its absorb, hinder it enter food chain.Therefore, in heavy metal
Applying humic acid in contaminated soil is a kind of highly effective administering method.
There is the approach that part is common in the absorption of crop heavy metal and the mineral element such as ferrum, zinc.Work as soil
In earth certain content of beary metal higher, to soil pollution more serious time, available another kind of to crop
Endanger compared with light and time concentration is low to the favourable trace element antagonism of plant growth it.Enrich iron fertilizer can show
Write the content of beary metal and accumulation reduced in rice plant and rice.Manganese can effectively control the weight of rice
Metal-accumulation.Give birth to owing to heavy metal and zinc are typically with, be period element, have similar
Chemical property and geochemical behaviour, thus zinc has the characteristic that antagonism heavy metal is absorbed by plants.
The toxic action of silicon suppression heavy metal is owing to silicon can dramatically increase the adsorbance of soil heavy metal, with
Time silicon heavy metal can be suppressed to enter rice plant so that it is in rice root, blade, the distribution of sheath and long-pending
Regressive is few, the heavy metal murder by poisoning to rice plant Physiological and Biochemical Metabolism of silicon suppression simultaneously.Therefore, at weight
Use micro-fertilizer (ferrum, zinc, manganese, siliceous fertilizer etc.) on metallic pollution rice soil, be to reduce Oryza sativa L. heavy metal poison
One of effective measures of evil and rice content.
Abscisic acid (ABA) is a kind of endogenous hormones being widely present in plant, can promote leaf, flower,
Fruit comes off, seed dormancy, and pore is closed, leaf senile, but under adverse environmental factor, ABA again can
Remarkably promote the g and D of plant.Therefore, execute outward appropriate ABA and can alleviate salt to a certain extent
Arid, the environment stress such as damage to plants caused by sudden drop in temperature, reduce the Transpiration Intensity of plant, reduce heavy metal organic with little molecule
Matter forms complex and carries on overground part in a large number with transpiration current and accumulate.
A kind of heavy metal pollution of soil ecological modifying agent of the present invention and existing soil heavy metal passivant
Compare, have the advantage that
One is effectively to regulate P in soil H-number.The part soil existence of south China is acidified to some extent,
Present invention employs substantial amounts of calcium oxide, can effectively regulate the pH value in soil.
Two is the organic matter that can be significantly increased in soil.China ploughs by the shadow using chemical fertilizer the most in a large number
Ringing, the content of soil with organic matter declines year by year, is to cause soil compaction, heavy metal in soil content
The major reason that raising, agricultural output and quality decline.Present invention employs substantial amounts of humic acid,
Effectively increase the content of organic matter in soil, to improving soil physico-chemical property, culture fertility, raising
Agricultural product quality and safety, the absorption of suppression crops heavy metal have good effect.
Three is to supplement the abscisic acid in soil and trace element.The present invention with the addition of a certain amount of abscisic acid
And trace element, can effectively reduce the activity of heavy metal in soil, reduce the absorption of crop heavy metal,
Make product of the present invention purify and rehabilitating soil performance is promoted further.
Four is to obvious by repair after the soil application of heavy metal pollution.A kind of soil of the present invention
Heavy metal pollution ecological modifying agent, very notable to soil remediation effect, 2014 in Yongzhou, Hunan Province
The ground tests such as Dongan County of city, Lengshuitan District show, a kind of heavy metal pollution of soil using the present invention is raw
After state modifying agent and preparation method thereof, soil with organic matter content dramatically increases, and content of beary metal is obvious
Reducing, agricultural product quality and safety level significantly improves.The agricultural product such as Oryza sativa L., Semen Maydis, Citrus, vegetable
In content of beary metal all reach state-set standard, quality safety level generally reach pollution-free food want
Ask.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further illustrated.
Embodiment one:
First, pulverize calcium oxide, cross 100 mesh sieves, standby；
Secondly, take by weight 60 parts of calcium oxide powders and 36 parts of humic acid, 2 parts of abscisic acid, 2 parts micro-
Secondary element raw material scientific compatibility in proportion, mix homogeneously, carry out fast ripe fermentation in being placed in fermentation tank, rotten
Maturation modifying agent material combination, standby；
3rd, modifying agent material combination to be dried, pulverize, sieved, granularity is less than 0.18mm, standby；
4th, according to conventional extrusion method granular organic fertilizer production method, carry out pelletize, then packaging is i.e.
Become.
Arable land is used normal soil heavy metal deactivator and is used the present embodiment 1
Heavy metal pollution of soil ecological modifying agent Contrast on effect table
Embodiment two:
First, pulverize calcium oxide, cross 100 mesh sieves, standby；
Secondly, take by weight 70 parts of calcium oxide powders and 26 parts of humic acid, 1 part of abscisic acid, 3 parts micro-
Secondary element raw material scientific compatibility in proportion, mix homogeneously, carry out fast ripe fermentation in being placed in fermentation tank, rotten
Maturation modifying agent material combination, standby；
Three, the 4th steps are with embodiment 1.
Arable land is used normal soil heavy metal deactivator and is used the present embodiment 2
Heavy metal pollution of soil ecological modifying agent Contrast on effect table
Embodiment three:
First, pulverize calcium oxide, cross 100 mesh sieves, standby；
Secondly, take by weight 50 parts of calcium oxide powders and 46 parts of humic acid, 3 parts of abscisic acid, 1 part micro-
Secondary element raw material scientific compatibility in proportion, mix homogeneously, carry out fast ripe fermentation in being placed in fermentation tank, rotten
Maturation modifying agent material combination, standby；
Three, the 4th steps are with embodiment 1.
Arable land is used normal soil heavy metal deactivator and is used the present embodiment 3
Heavy metal pollution of soil ecological modifying agent Contrast on effect table
A kind of heavy metal pollution of soil ecological modifying agent of the present invention, both can be used as south China paddy field and had ploughed
Ground heavy metal pollution of soil reparation and ecological improvement, it is possible to be used as south drought soil arable soil heavy metal-polluted
Dye is repaired and ecological improvement.
A kind of heavy metal pollution of soil ecological modifying agent of the present invention is suitable for arable soil, amount of application, makes
See table with method and repairing effect.
Claims (5)
1. a heavy metal pollution of soil ecological modifying agent, it is characterised in that be to be joined by the raw material of following weight portion
System forms:
Described trace element is: one in ferrum, manganese, zinc, silicon, two kinds, multiple or whole,
Weight proportion between its each element can be single-candidate, it is possible to for other ratio.
A kind of heavy metal pollution of soil ecological modifying agent, it is characterised in that be by
The preparation of raw material of following weight portion forms:
A kind of heavy metal pollution of soil ecological modifying agent, it is characterised in that be by
The preparation of raw material of following weight portion forms:
A kind of heavy metal pollution of soil ecological modifying agent, it is characterised in that be by
The preparation of raw material of following weight portion forms:
5. the side of the heavy metal pollution of soil ecological modifying agent that a kind is prepared according to any one of claim 1-4
Method, the steps include:
First, pulverize calcium oxide, cross 100 mesh sieves, standby；
Secondly, calcium oxide powder is taken by weight with humic acid, abscisic acid, trace element materials in proportion
Scientific compatibility, mix homogeneously, carry out fast ripe fermentation in being placed in fermentation tank, become thoroughly decomposed into modifying agent raw material group
Close, standby；
3rd, modifying agent material combination to be dried, pulverize, sieved, granularity is less than 0.18mm, standby；
4th, according to conventional extrusion method granular organic fertilizer production method, carry out pelletize and make.
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| CN201510031428.7A CN105885856B (en) | 2015-01-17 | 2015-01-17 | A kind of heavy metal pollution of soil ecological modifying agent and preparation method thereof |
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| CN105885856A true CN105885856A (en) | 2016-08-24 |
| CN105885856B CN105885856B (en) | 2019-04-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106831156A (en) * | 2017-02-28 | 2017-06-13 | 湖南省中科农业有限公司 | A kind of ecological modifying agent of heavy-metal contaminated soil and preparation method thereof |
| CN107057712A (en) * | 2017-04-14 | 2017-08-18 | 东南大学 | Suitable for the curing agent and production and application method of highly acid Compound Heavy Metals soil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928179A (en) * | 2009-06-19 | 2010-12-29 | 深圳市意可曼生物科技有限公司 | Slow release fertilizer having soil remediation function and soil contamination remediation method |
| CN102925161A (en) * | 2012-01-18 | 2013-02-13 | 云南省烟草公司昭通市公司 | Broad spectrum heavy metal activity deactivator preparation method |
| CN103627402A (en) * | 2013-11-11 | 2014-03-12 | 桂林理工大学 | Soil pollution remediation conditioning agent and preparation method thereof |
-
2015
- 2015-01-17 CN CN201510031428.7A patent/CN105885856B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928179A (en) * | 2009-06-19 | 2010-12-29 | 深圳市意可曼生物科技有限公司 | Slow release fertilizer having soil remediation function and soil contamination remediation method |
| CN102925161A (en) * | 2012-01-18 | 2013-02-13 | 云南省烟草公司昭通市公司 | Broad spectrum heavy metal activity deactivator preparation method |
| CN103627402A (en) * | 2013-11-11 | 2014-03-12 | 桂林理工大学 | Soil pollution remediation conditioning agent and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106831156A (en) * | 2017-02-28 | 2017-06-13 | 湖南省中科农业有限公司 | A kind of ecological modifying agent of heavy-metal contaminated soil and preparation method thereof |
| CN107057712A (en) * | 2017-04-14 | 2017-08-18 | 东南大学 | Suitable for the curing agent and production and application method of highly acid Compound Heavy Metals soil |
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| Publication number | Publication date |
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| CN105885856B (en) | 2019-04-02 |
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