CN105885856B - A kind of heavy metal pollution of soil ecological modifying agent and preparation method thereof - Google Patents
A kind of heavy metal pollution of soil ecological modifying agent and preparation method thereof Download PDFInfo
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- CN105885856B CN105885856B CN201510031428.7A CN201510031428A CN105885856B CN 105885856 B CN105885856 B CN 105885856B CN 201510031428 A CN201510031428 A CN 201510031428A CN 105885856 B CN105885856 B CN 105885856B
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Abstract
The invention discloses a kind of heavy metal pollution of soil ecological modifying agents, it is by 50-70 parts of calcium oxide, 26-46 parts of humic acid, 1-3 parts of abscisic acid, 1-3 parts of microelement mix decomposed fermentation by weight, granulation is made, P in soil H value is adjusted with effective, the organic matter in soil is significantly increased, supplement the abscisic acid and microelement in soil, the advantages that obvious to repair after being applied by heavy-metal contaminated soil, the invention product both can be used as the Heavy Metal Pollution In Cultivated Land reparation of south China paddy field and ecology improvement, it also is used as the native Heavy Metal Pollution In Cultivated Land reparation of southern drought and ecology improvement.The invention also discloses a kind of preparation methods of heavy metal pollution of soil ecological modifying agent.
Description
Technical field
The present invention relates to arable land recovery technique field, especially a kind of heavy metal pollution of soil ecological modifying agent and its preparation
Method.
Background technique
In April, 2014, Chinese Ministry of Environmental Protection and Ministry of Land and Resources, which combine, has issued First National Soil Pollution Investigation bulletin, entirely
State's soil environmental aspect totally allows of no optimist, and some areas soil pollution is heavier, and arable soil environmental quality causes anxiety.In different soil
Using in soil types, arable soil point exceeding standard rate highest is 19.4% on ground.Wherein, heavy metal contaminants be mainly mercury,
Arsenic, copper, lead, chromium, zinc, nickel, seriously polluted agriculture plantation and agricultural product, cause the agricultural product residual quantity of heavy metal in these places
It is exceeded, and lead to the soil hardening in these places, soil fertility decline, pest and disease damage wildness, agricultural output and quality decline, it is serious to make
The China Yue Liao agricultural sustainable development.How repairing heavy metal in soil pollutes, and is current agriculture to guarantee agricultural sustainable development
The problem that industry and environmental protection sector are 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 agents, can be effective after application
The activity for reducing heavy metal in soil, is greatly reduced the agricultural product content of beary metal produced, reaches state-set standard.
Another technical problem to be solved by the present invention is that providing a kind of preparation side of heavy metal pollution of soil ecological modifying agent
Method.
In order to solve the above technical problems, the technical solution used in the present invention:
A kind of heavy metal pollution of soil ecological modifying agent is formulated by the raw material of following parts by weight:
Calcium oxide 50-70 humic acid 26-46
Abscisic acid 1-3 microelement 1-3
The microelement are as follows: one of iron, manganese, zinc, silicon, two kinds, a variety of or whole, the weight between each element
Amount proportion can be equal, can also be other ratios.
The technical solution that it optimizes by the raw material of following parts by weight first is that be formulated:
60 humic acid 36 of calcium oxide
2 microelement 2 of abscisic acid
The technical solution that it optimizes by the raw material of following parts by weight second is that be formulated:
70 humic acid 26 of calcium oxide
1 microelement 3 of abscisic acid
The technical solution that it optimizes by the raw material of following parts by weight third is that be formulated:
50 humic acid 46 of calcium oxide
3 microelement 1 of abscisic acid
Meanwhile providing the preparation method of above-mentioned heavy metal pollution of soil ecological modifying agent:
Firstly, crushing calcium oxide, sieve with 100 mesh sieve, it is spare；
Secondly, taking calcium oxide powder and humic acid, abscisic acid, trace element materials scientific compatibility in proportion by weight, mix
It closes uniformly, is placed in fermentor and carries out fast ripe fermentation, it is decomposed at modifying agent material combination, it is spare；
Third by the drying of modifying agent material combination, crushes, screening, and granularity is less than 0.18mm, spare；
4th, according to conventional extrusion method granular organic fertilizer production method, it is granulated, then pack.
The beneficial effects of the present invention are:
A kind of heavy metal pollution of soil ecological modifying agent of the invention, with after decomposed calcium oxide, humic acid, abscisic acid,
Microelement is raw material, by decomposed fermentation, granulation, manufactured heavy metal pollution of soil ecological modifying agent.Product can be repaired effectively
Again by the activity of the soil of heavy metal pollution, reduction heavy metal in soil, inhibit absorption of the crops to heavy metal.
The activity of heavy metal in soil is obviously influenced by solution acidity, and pH is higher, and activity is weaker.Therefore, by weight
Liming substance in the soil of metallic pollution, such as calcium hydroxide, calcium carbonate, calcium silicates improve soil pH, Ji Keyou
Effect ground reduces the validity of heavy metal.Lime, boron mud, zinc sulfate, calcium superphosphate, in 5 heavy metal species soil modifying agent of nitrogenous fertilizer, with stone
Grey effect is best.Acid soil liming has certain inhibiting effect to rice absorbing heavy metal, and inhibitory effect is with lime application
Amount increases and increases.The liming on the soil of heavy metal pollution, general per hectare soil application 500kg make weight in soil
Metal available heavy metal content reduces by 15% or so, makes rice, wheat seed, content of beary metal point in corn seed and Chinese cabbage
It Xia Jiang 55.9%, 50%, 21% and 43%.Therefore, liming improves the pH value of soil on heavy-metal contaminated soil
It is one of the effective measures for reducing heavy metal uptake by rice.
Humic acid is applied into the soil of heavy metal pollution, on the one hand can be increase soil fertility, and soil property is improved, it is another
Aspect can preferably mitigate the biological effectiveness of heavy metal again.Due to the presence of functional groups a large amount of in humic acid and with biggish
Specific surface area can promote the formed heavy metal organic complex of heavy metal ions in soil, increase suction of the soil to heavy metal
Attached ability improves soil to the resiliency of heavy metal, absorbs to reduce rice to it, it is hindered to enter food chain.Therefore, exist
Applying humic acid in heavy-metal contaminated soil is a kind of highly effective administering method.
Absorption of the crop to the mineral elements such as heavy metal and iron, the zinc approach common there are part.When certain in soil is heavy
When tenor is higher, more serious to soil pollution, to crop when endangering low compared with light and concentration to crop using another kind
Grow advantageous microelement antagonism it.Increasing iron fertilizer can significantly reduce content of beary metal and accumulation in rice plant and rice
Amount.The Accumulation of heavy metals of rice can be effectively controlled in manganese.It is period element since heavy metal and zinc are usually adjoint and raw,
With similar chemical property and geochemical behaviour, thus the characteristic that there is zinc antagonism heavy metal to be absorbed by plants.Silicon inhibits
The toxic action of heavy metal is soil to be dramatically increased due to silicon to the adsorbance of heavy metal, while silicon can inhibit heavy metal to enter
Rice plant reduces it in rice root, blade, the distribution of leaf sheath and accumulation, while silicon inhibits heavy metal raw to rice plant
Manage the murder by poisoning of biochemical metabolism.It therefore, is to reduce water using micro- fertile (iron, zinc, manganese, siliceous fertilizer etc.) on heavy metal pollution rice soil
One of rice heavy metallic poison and the effective measures of rice content.
Abscisic acid (ABA) is a kind of endogenous hormones for being widely present in plant, leaf, flower, fruit can be promoted to fall off, seed
Suspend mode, stomata are closed, leaf senile, but under adverse environmental factor, ABA can remarkably promote the growth and development of plant again.Therefore,
The environment stresses such as salt is arid, damages to plants caused by sudden drop in temperature can be alleviated to a certain extent by applying appropriate ABA outside, reduced the Transpiration Intensity of plant, reduced weight
Metal forms complex compound with small molecule organic matter and largely conveys and accumulate on overground part with transpiration current.
A kind of heavy metal pollution of soil ecological modifying agent of the invention has compared with existing soil heavy metal passivant
Following advantage:
First is that effectively adjusting P in soil H value.The part soil of south China exists to be acidified to some extent, and the present invention uses
A large amount of calcium oxide, can effectively adjust the pH value in soil.
Second is that the organic matter in soil can be significantly increased.China arable land is influenced by a large amount of for many years using chemical fertilizer, in soil
The content of organic matter declines year by year, is to lead to soil hardening, the raising of heavy metal in soil content, agricultural output and quality decline
Major reason.Present invention employs a large amount of humic acid, the content of organic matter in soil is effectively increased, is managed soil is improved
Change property, culture fertility, improves agricultural product quality and safety, crops is inhibited to have good effect to the absorption of heavy metal.
Third is that abscisic acid and microelement in supplement soil.The present invention is added to a certain amount of abscisic acid and micro member
The activity of heavy metal in soil can be effectively reduced in element, reduce absorption of the crop to heavy metal, and product of the present invention is made to purify and repair
Soil function is further promoted.
Fourth is that obvious to repair after the soil application by heavy metal pollution.A kind of heavy metal pollution of soil of the invention
Ecological modifying agent, it is very significant to soil remediation effect, it is tested on Yongzhou City, Hubei Province Dongan County, Lengshuitan District and other places within 2014
Show using after a kind of heavy metal pollution of soil ecological modifying agent of the invention and preparation method thereof, soil with organic matter content
It dramatically increases, content of beary metal is substantially reduced, and agricultural product quality and safety level significantly improves.Rice, corn, citrus, vegetables etc.
Content of beary metal in agricultural product reaches state-set standard, and quality safety level generally reaches green food requirement.
Specific embodiment
With reference to embodiments, the present invention is further illustrated.
Embodiment one:
Firstly, crushing calcium oxide, sieve with 100 mesh sieve, it is spare；
Secondly, take by weight 60 parts of calcium oxide powders and 36 parts of humic acid, 2 parts of abscisic acids, 2 parts of trace element materials by than
Example scientific compatibility, is uniformly mixed, and is placed in fermentor and carries out fast ripe fermentation, decomposed at modifying agent material combination, spare；
Third by the drying of modifying agent material combination, crushes, screening, and granularity is less than 0.18mm, spare；
4th, according to conventional extrusion method granular organic fertilizer production method, it is granulated, then pack.
Arable land application normal soil heavy metal deactivator and application the present embodiment 1
Heavy metal pollution of soil ecological modifying agent Contrast on effect table
Embodiment two:
Firstly, crushing calcium oxide, sieve with 100 mesh sieve, it is spare；
Secondly, take by weight 70 parts of calcium oxide powders and 26 parts of humic acid, 1 part of abscisic acid, 3 parts of trace element materials by than
Example scientific compatibility, is uniformly mixed, and is placed in fermentor and carries out fast ripe fermentation, decomposed at modifying agent material combination, spare；
Third, the 4th step are the same as embodiment 1.
Arable land application normal soil heavy metal deactivator and application the present embodiment 2
Heavy metal pollution of soil ecological modifying agent Contrast on effect table
Embodiment three:
Firstly, crushing calcium oxide, sieve with 100 mesh sieve, it is spare；
Secondly, take by weight 50 parts of calcium oxide powders and 46 parts of humic acid, 3 parts of abscisic acids, 1 part of trace element materials by than
Example scientific compatibility, is uniformly mixed, and is placed in fermentor and carries out fast ripe fermentation, decomposed at modifying agent material combination, spare；
Third, the 4th step are the same as embodiment 1.
Arable land application normal soil heavy metal deactivator and application 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 invention both can be used as a south China paddy field arable soil huge sum of money
Belong to pollution amelioration and ecology improvement, it is also possible to make the native Heavy Metal Pollution In Cultivated Land reparation of south drought and ecology improvement.
A kind of heavy metal pollution of soil ecological modifying agent of the invention is applicable in arable soil, amount of application, application method and repairs
Multiple effect see the table below.
Claims (5)
1. a kind of heavy metal pollution of soil ecological modifying agent, it is characterised in that be formulated by the raw material of following parts by weight:
Calcium oxide 50-70 humic acid 26-46
Abscisic acid 1-3 microelement 1-3
The microelement are as follows: one of iron, manganese, zinc, silicon, two kinds, it is a variety of or whole, the weight between each element is matched
Than that be equal, can also be other ratios.
2. a kind of heavy metal pollution of soil ecological modifying agent according to claim 1, it is characterised in that be by following weight
The raw material of part is formulated:
60 humic acid 36 of calcium oxide
2 microelement 2 of abscisic acid.
3. a kind of heavy metal pollution of soil ecological modifying agent according to claim 1, it is characterised in that be by following weight
The raw material of part is formulated:
70 humic acid 26 of calcium oxide
1 microelement 3 of abscisic acid.
4. a kind of heavy metal pollution of soil ecological modifying agent according to claim 1, it is characterised in that be by following weight
The raw material of part is formulated:
50 humic acid 46 of calcium oxide
3 microelement 1 of abscisic acid.
5. a kind of method for preparing heavy metal pollution of soil ecological modifying agent of any of claims 1-4, step
Are as follows:
Firstly, crushing calcium oxide, sieve with 100 mesh sieve, it is spare；
Secondly, calcium oxide powder is taken to mix in proportion with humic acid, abscisic acid, trace element materials by weight, it is placed in hair
Fast ripe fermentation is carried out in fermentation tank, it is decomposed at modifying agent material combination, it is spare；
Third by the drying of modifying agent material combination, crushes, screening, and granularity is less than 0.18mm, spare；
4th, according to conventional extrusion method granular organic fertilizer production method, carries out granulation and be made.
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| CN105885856B true CN105885856B (en) | 2019-04-02 |
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| 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 |
| CN107057712B (en) * | 2017-04-14 | 2020-09-11 | 东南大学 | Curing agent suitable for strong-acid compound heavy metal polluted soil and production and use methods thereof |
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 |
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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 |
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