CN107384433A - A kind of soil heavy metal passivant - Google Patents
A kind of soil heavy metal passivant Download PDFInfo
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- CN107384433A CN107384433A CN201710731811.2A CN201710731811A CN107384433A CN 107384433 A CN107384433 A CN 107384433A CN 201710731811 A CN201710731811 A CN 201710731811A CN 107384433 A CN107384433 A CN 107384433A
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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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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
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- Materials Engineering (AREA)
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Abstract
The present invention relates to the Treatment process of heavy metal pollution of soil, specifically a kind of soil heavy metal passivant and the method using soil heavy metal passivant passivation repairing heavy metal in soil pollution.By the component of following parts by weight meter：30 parts of peanut shell, 15 parts of Korean Needle, 10 parts of sepiolite, 10 parts of flyash, 5 parts of chitin, 3 parts of metasilicate pentahydrate sodium, 0.4 part of sodium tripolyphosphate, 0.1 part of Choline Chloride, 1.2 parts of microbial bacterial agent, 0.05 part of configuration of quick lime forms, and can effectively reduce the content of beary metal of plant, reaches the purpose that passivation is repaired.
Description
Technical field
The present invention relates to the field that heavy metal pollution of soil is administered, specifically a kind of soil heavy metal passivant and profit
The method polluted with soil heavy metal passivant passivation repairing heavy metal in soil.
Technical background
The nutriment such as multivitamin and mineral matter necessary to vegetables can provide human body.In addition, also have in vegetables more
Kind phytochemicals is the putative composition beneficial to health, such as carotenoid, two propen compounds, methyl sulphur
Compound etc., many vegetables also containing unique trace element, have special health-care efficacy to human body, such as kind in tomato
Prostaglandin in Lycopene, onion etc..China is vegetables production and consumption big country in the world, and vegetable cultivation area exceedes
17000000 hectares, total output reaches more than 500,000,000 tons, is the 3rd big Vegetables Exportation state of the world.
However, because China's heavy metals in farmland pollution situation is on the rise, the heavy metal pollution problem of soil serious prestige
Coerce to China's vegetable safety produce, therefore take emergency technical measure reduce food in heavy metal content be at present it is very urgent
Task.In the chemical harnessing technology of heavy metal pollution of soil, passivation recovery technique is good and economical and practical with its simplicity, effect
The advantages that and by the most attention of people, be particularly suitable for use in repair in large area, the agricultural land soil of slight pollution.It by
Passivating material is added in soil, precipitation, absorption, ion exchange, humification and redox etc. one occurs with heavy metal element
Serial reaction, and then change the occurrence patterns of heavy metal, significantly reduce its biological effectiveness and transportable property, hence it is evident that alleviate a huge sum of money
Belong to the toxic action of Pollution on Plant growth, the uptake and accumulation of plant heavy metal is greatly decreased.It is blunt from the eighties in last century
Change recovery technique to start to put into practical application.
The passivating material commonly used at present in in-situ passivation recovery technique includes basic matterial, material containing P, clay mineral, iron
Mn oxide and organic materials etc..Wherein, clay mineral is used for the passivation reparation of heavy-metal contaminated soil, has in situ, honest and clean
Valency, easy to operate, the term of validity is long, on soil physico-chemical property and quality without influenceing the advantages that, and as soil key component it
One, it can strengthen the self-purification capacity of soil, improve the crumb structure of soil.However, clay mineral is used for heavy metal polluted soil
There is also some problems for the passivation reparation of earth.Natural clay mineral repair ability is limited, to reach preferable repairing effect often
Amount of application is larger, causes treatment cost higher, and practicality is influenceed by certain；Although handed over by acid treatment, heat treatment, ion
The modified measures such as change and can improve its and repair efficiency, but these measures often lead to expense rise, it is difficult to which large-scale promotion should
With.
The present invention provides a kind of soil heavy metal passivant, and suitable for vegetable growth, cost is low, low-consuming, step is simple, can
Soil quality is fully improved, recovers the ecological functions and Industrial Function of soil, reduces the content of beary metal of plant, reach passivation and repair
Multiple purpose.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of soil heavy metal passivant, suitable for vegetables
Growth, cost is low, low-consuming, step is simple, can fully improve soil quality, recovers the ecological functions and Industrial Function of soil,
The content of beary metal of plant is reduced, reaches the purpose that passivation is repaired.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of soil heavy metal passivant, it is characterised in that the soil heavy metal passivant is by following parts by weight meter
Component：30 parts of peanut shell, 15 parts of Korean Needle, 10 parts of sepiolite, 10 parts of flyash, 5 parts of chitin, 3 parts of metasilicate pentahydrate sodium,
0.4 part of sodium tripolyphosphate, 0.1 part of Choline Chloride, 1.2 parts of microbial bacterial agent, 0.05 part of configuration of quick lime form.
The preparation method of the soil heavy metal passivant is：By the component of parts by weight meter：30 parts of peanut shell, Korean Needle
15 parts, after 1.2 parts of microbial bacterial agent is proportionally well mixed, 50 parts of clear water are added, mixture is stacked in 45 DEG C of greenhouses
After fermentation 10 days, it is transferred in 40 DEG C of environment, is uniformly sprinkled within every 2 days 0.005 part of quick lime and terminates hair after turning upside down 1 time, 20 days
Ferment, 10 parts of sepiolite, 10 parts of flyash, 5 parts of chitin, 3 parts of metasilicate pentahydrate sodium, sodium tripolyphosphate are added in tunning
0.4 part, 0.1 part of Choline Chloride, soil heavy metal passivant is can obtain after well mixed.
Preferably, the soil heavy metal passivant dosage of every square metre of soil is 40g；
Preferably, the flyash is caused flyash in steam power plant's production process, crosses 100 mesh sieves.
Preferably, the soil heavy metal passivant is used for the cadmium pollution for reducing pot-herb.
Preferably, the soil heavy metal passivant can be used for the cultivation of pakchoi, rape, romaine lettuce, Xiaoqinling Nature Reserve, water spinach.
The soil heavy metal passivant application method is：First turned over agricultural machinery by soil layer is polluted, and soil block is beaten
It is broken, above-mentioned soil heavy metal passivant is then spread fertilizer over the fields, turns over mixing again, you can for agricultural planting.
Compared with prior art, beneficial effects of the present invention are：
Soil heavy metal passivant of the present invention is formed by many kinds of substance mixed configuration, is matched somebody with somebody according to provided by the invention
The ratio of putting can make it mutually maximize favourable factors and minimize unfavourable ones, and make itself and the heavy metal element in soil by a variety of passivating materials
The series reactions such as generation obligate absorption, surface complexation, ion exchange and co-precipitation, significantly reduce its biological effectiveness and can
Migration, promote the heavy metal element in soil from the higher form of activity to the low Forms Transformation of activity, so as to reduce a huge sum of money
The biological effectiveness of category and transportable property, reach the purpose that passivation is repaired；The vegetables content of beary metal harvested is low, upgrowth situation
Good, yield is high, and commodity rate is high, ensure that the yield and quality of vegetables；
Soil heavy metal passivant of the present invention is configured using agricultural waste fermentation, and raw material supply is sufficient, step
Simply, passivator cost can be reduced, and efficiently solves agricultural wastes and abandons or burn the pollution to environment, and can be reached blunt
Change the purpose repaired.
In passivator raw material of the present invention, a large amount of nutrients are rich in after peanut shell fermentation, shock-absorbing capacity is preferable, has good
Heavy metal ion adsorbed effect so that rhizospheric environment is comparatively stable, and cost is low, and facility can obtain；Korean Needle ferments
It is more containing humus afterwards, it is light, permeability is good, seepage of water is strong, adsorptivity is strong, containing a large amount of organic matters, and there is certain insect prevention
Acted on disease, the Korean Needle fermentate of proper ratio is added in passivator, pH is in faintly acid, is advantageous to vegetable growth, suppression
The propagation of germ processed, so as to ensure plant healthy growth；Sepiolite raw material sources are extensive, and cost is cheap, have stronger surface
Absorption and ion-exchange capacity, can also improve soil self purification activity, can effectively improve soil quality, recover the ecological work(of soil
Energy and Industrial Function；Flyash has good physicochemical properties, must containing crops such as a large amount of water-soluble silicon calcium and magnesium phosphorus
The nutrient needed, it can be widely used in transforming rich clay, the raw-soil, acid soil and saline-alkali soil, add flyash, can make in soil
Zinc, copper, lead, the exchange state of cadmium, organically combine state content decline, and iron and manganese oxides reference state and the increase of residual form content, from
And heavy metal has preferable passivation effect；Chitin is a kind of positively charged natural polymerses, can
Heavy metal ion is adsorbed, improved soil, culture fertility, improves plant recovery of nutrient in soil；Metasilicate pentahydrate sodium has de-sludging, breast
Change, scattered, moistening, permeability and pH value buffer capacity, can effectively adjust passivator density and acid-base value；Sodium tripolyphosphate can be made
For metal-chelator, combined with heavy metal ion, become stabilization, the bigger compound of molecular weight, so as to reduce weight in plant
Tenor；Choline Chloride is a kind of plant photosynthesis promoter, has obvious effect to increase yield；Microbial bacterial agent can
Accelerate fermentation progress, improve fermentation efficiency；The every 2 days a small amount of quick lime being sprinkled into can destroy Korean Needle surface wax coat, promote
Fermentation raw material decomposition, and yeasting is adjusted, regulation acidity is neutralized, promotes microbial reproduction and activity, accelerates course of fermentation, and
Calcium constituent needed for crops can be provided.Above-mentioned substance by effectively configuring, can largely reduce the weight of plant in the proper ratio
Tenor.
Therefore with raw material provided by the present invention and proportional arrangement heavy metal deactivator, soil quality can be fully improved, it is extensive
The ecological functions and Industrial Function of earth backing earth, the content of beary metal of plant is reduced, reach the purpose that passivation is repaired.
Embodiment
Embodiment 1
It is 7.20 for examination soil pH value, total Cd contents are 1.42mg/kg, belong to cadmium pollution soil.Pakchoi sowing, nursery
Afterwards, transplanted using a height of white plastic tubs of 33*25*15cm rectangles of the wide * of * 9 long, the consistent seedling of growth selection, per basin
10, pakchoi is transplanted, per basin pakchoi once to repeat, every group of 3 repetition, first group takes no action to, and second group using existing
There is the soil heavy metal passivant that technology provides, the 3rd group uses soil heavy metal passivant of the present invention.Growth 30 days
Take the overground part of three groups of pakchois to determine afterwards and calculate per mu yield, protein, soluble solid, Vc contents and Cd contents, as a result
As shown in table 1.The soil heavy metal passivant that the prior art provides is (a kind of in situ with reference to patent CN200910070713.4
The method that heavy metal pollution of vegetable field soil is repaired in passivation) technology that is provided.
Table 1
Knowable to being analyzed data above, using soil heavy metal passivant of the present invention so that pakchoi
Cd contents are substantially reduced, and reduce uptake and accumulation of the pakchoi to Cd, and yield and quality is also improved, and is effectively facilitated
The growth of pakchoi, so as to reach the purpose that passivation is repaired.
Embodiment 2
It is 7.20 for examination soil pH value, total Cd contents are 1.42mg/kg, belong to cadmium pollution soil.Rape seed, nursery
Afterwards, transplanted using a height of white plastic tubs of 33*25*15cm rectangles of the wide * of * 9 long, the consistent seedling of growth selection, per basin
Rape 10 is transplanted, per basin rape once to repeat, every group of 3 repetition, first group takes no action to, and second group uses existing skill
The soil heavy metal passivant that art provides, the 3rd group uses soil heavy metal passivant of the present invention.Growth takes after 30 days
The overground part of three groups of rapes determines and calculates per mu yield, protein, soluble solid, Vc contents and Cd contents, as a result such as the institute of table 2
Show.The soil heavy metal passivant that the prior art provides with reference to patent CN200910070713.4, (repair by a kind of in-situ passivation
The method of multiple heavy metal pollution of vegetable field soil) technology that is provided.
Table 2
Knowable to being analyzed data above, using soil heavy metal passivant of the present invention so that the Cd of rape
Content is substantially reduced, and reduces uptake and accumulation of the rape to Cd, and yield and quality is also improved, and has effectively facilitated oil
The growth of dish, so as to reach the purpose that passivation is repaired.
Embodiment 3
It is 7.20 for examination soil pH value, total Cd contents are 1.42mg/kg, belong to cadmium pollution soil.Romaine lettuce sowing, nursery
Afterwards, transplanted using a height of white plastic tubs of 33*25*15cm rectangles of the wide * of * 9 long, the consistent seedling of growth selection, per basin
10, romaine lettuce is transplanted, per basin romaine lettuce once to repeat, every group of 3 repetition, first group takes no action to, and second group uses existing skill
The soil heavy metal passivant that art provides, the 3rd group uses soil heavy metal passivant of the present invention.Growth takes after 30 days
The overground part of three groups of romaine lettuce determines and calculates per mu yield, protein, soluble solid, Vc contents and Cd contents, as a result such as the institute of table 3
Show.The soil heavy metal passivant that the prior art provides with reference to patent CN200910070713.4, (repair by a kind of in-situ passivation
The method of multiple heavy metal pollution of vegetable field soil) technology that is provided.
Table 3
Knowable to being analyzed data above, using soil heavy metal passivant of the present invention so that the Cd of romaine lettuce
Content is substantially reduced, and reduces uptake and accumulation of the romaine lettuce to Cd, and yield and quality is also improved, and has effectively facilitated life
The growth of dish, so as to reach the purpose that passivation is repaired.
Embodiment 4
It is 7.20 for examination soil pH value, total Cd contents are 1.42mg/kg, belong to cadmium pollution soil.Pakchoi sowing, nursery
Afterwards, transplanted using a height of white plastic tubs of 33*25*15cm rectangles of the wide * of * 33 long, the consistent seedling of growth selection, per basin
10, pakchoi is transplanted, per basin pakchoi once to repeat, every group of 3 repetition, 11 groups of pakchois use soil of the present invention
Earth heavy metal deactivator, it is distinguished the dosage in each component in passivator, remaining condition all same, determines 11 groups of pakchois
Overground part Cd contents, as a result as shown in table 4.
Table 4
From above-mentioned data analysis, when 30 parts of peanut shell, 15 parts of Korean Needle, 10 parts of sepiolite, 10 parts of flyash, first
5 parts of chitin, 3 parts of metasilicate pentahydrate sodium, 0.4 part of sodium tripolyphosphate, 0.1 part of Choline Chloride, 1.2 parts of microbial bacterial agent, quick lime
At 0.05 part, the Cd contents of pakchoi are minimum, and heavy metal passivation effect is best.
Embodiment 5
It is 7.20 for examination soil pH value, total Cd contents are 1.42mg/kg, belong to cadmium pollution soil.Pakchoi sowing, nursery
Afterwards, transplanted using a height of white plastic tubs of 33*25*15cm rectangles of the wide * of * 18 long, the consistent seedling of growth selection, per basin
10, pakchoi is transplanted, per basin pakchoi once to repeat, every group of 3 repetition, 6 groups of pakchois use soil of the present invention
Heavy metal deactivator, it distinguishes the dosage in each component in passivator, remaining condition all same, the ground of 6 groups of pakchois of measure
Top Cd contents, as a result as shown in table 5.
Table 5
From above-mentioned data analysis, when it is 40g that the dosage of soil heavy metal passivant, which is every square metre of soil dosage,
It can reach best heavy metal passivation effect.
Claims (7)
- A kind of 1. soil heavy metal passivant, it is characterised in that the soil heavy metal passivant by following parts by weight meter group Point：30 parts of peanut shell, 15 parts of Korean Needle, 10 parts of sepiolite, 10 parts of flyash, 5 parts of chitin, 3 parts of metasilicate pentahydrate sodium, three 0.4 part of polyphosphate sodium, 0.1 part of Choline Chloride, 1.2 parts of microbial bacterial agent, 0.05 part of configuration of quick lime form.
- 2. the preparation method of soil heavy metal passivant according to claim 1, it is characterised in that by the group of parts by weight meter Point：30 parts of peanut shell, 15 parts of Korean Needle, after 1.2 parts of microbial bacterial agent is proportionally well mixed, 50 parts of clear water are added, will Mixture is stacked at fermented 10 days in 45 DEG C of greenhouses after, be transferred in 40 DEG C of environment, be uniformly sprinkled into 0.005 part of quick lime within every 2 days And terminate fermentation after turning upside down 1 time, 20 days, 10 parts of sepiolite, 10 parts of flyash, 5 parts of chitin, five water are added in tunning 3 parts of sodium metasilicate, 0.4 part of sodium tripolyphosphate, 0.1 part of Choline Chloride, soil heavy metal passivant is can obtain after well mixed.
- 3. soil heavy metal passivant according to claim 1, it is characterised in that the heavy metal-polluted soil of every square metre of soil Passivator dosage is 40g.
- 4. soil heavy metal passivant according to claim 1, it is characterised in that the flyash is that steam power plant produced Caused flyash in journey, cross 100 mesh sieves.
- 5. soil heavy metal passivant according to claim 1, it is characterised in that the soil heavy metal passivant is used for Reduce the cadmium pollution of pot-herb.
- 6. heavy metal deactivator according to claim 1, it is characterised in that the soil heavy metal passivant can be used for small Chinese cabbage, the cultivation of rape, romaine lettuce, Xiaoqinling Nature Reserve, water spinach.
- A kind of 7. soil heavy metal passivant application method, it is characterised in that：First turned over agricultural machinery by soil layer is polluted, and will Soil block is smashed, and then spreads fertilizer over the fields the soil heavy metal passivant described in claim 1, turns over mixing again, you can is planted for agricultural Plant.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484276A (en) * | 2018-05-24 | 2018-09-04 | 舒城县顺发蔬菜专业合作社 | A kind of asparagus lettuce fertilizer for increasing production |
| CN112745856A (en) * | 2021-01-21 | 2021-05-04 | 中国科学院南京土壤研究所 | Application of humic acid as repairing material in reducing bioavailability of alkalescent soil Cd |
| CN113913190A (en) * | 2021-10-14 | 2022-01-11 | 上海市农产品质量安全中心 | Preparation method of soil heavy metal passivator based on electrostatic effect |
| CN113956887A (en) * | 2021-11-11 | 2022-01-21 | 南京清科中晟环境技术有限公司 | Composite ecological restoration agent |
| CN114621039A (en) * | 2020-12-11 | 2022-06-14 | 中国科学院大连化学物理研究所 | Application of polysaccharide as soil conditioner |
| WO2023244198A1 (en) * | 2022-06-14 | 2023-12-21 | Akpinar Aysegul | An efficient, sustainable and economical method for reducing heavy metal accumulation and eliminating heavy metal toxicity in plants |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108484276A (en) * | 2018-05-24 | 2018-09-04 | 舒城县顺发蔬菜专业合作社 | A kind of asparagus lettuce fertilizer for increasing production |
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| WO2023244198A1 (en) * | 2022-06-14 | 2023-12-21 | Akpinar Aysegul | An efficient, sustainable and economical method for reducing heavy metal accumulation and eliminating heavy metal toxicity in plants |
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| CN107384433B (en) | 2020-03-31 |
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