CN108559521A - A kind of soil passivator and preparation method thereof and application method reducing geobiont available Cd - Google Patents
A kind of soil passivator and preparation method thereof and application method reducing geobiont available Cd Download PDFInfo
- Publication number
- CN108559521A CN108559521A CN201810522589.XA CN201810522589A CN108559521A CN 108559521 A CN108559521 A CN 108559521A CN 201810522589 A CN201810522589 A CN 201810522589A CN 108559521 A CN108559521 A CN 108559521A
- Authority
- CN
- China
- Prior art keywords
- soil
- passivator
- mesh
- cadmium
- soil passivator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
- B09C1/08—Reclamation of contaminated soil chemically
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B17/00—Other phosphatic fertilisers, e.g. soft rock phosphates, bone meal
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C2101/00—In situ
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Pest Control & Pesticides (AREA)
- Mechanical Engineering (AREA)
- Environmental Sciences (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Fertilizers (AREA)
Abstract
The present invention provides a kind of soil passivator reducing geobiont available Cd and preparation method thereof and application method, the soil passivator includes following component by mass percentage：Animal bone powder 30wt%~50wt%；Siliceous fertilizer 30wt%~50wt%；Biological 0~20wt% of calcium material；0~20wt% of animal waste.The present invention is by adding animal bone powder and siliceous fertilizer, using synergistic effect each other, and suitably coordinate biological calcium material and animal waste, the activity and biological effectiveness of cadmium in farmland is made to reduce, it reduces crop cadmium is absorbed and utilized, while soil physico-chemical property will not be affected greatly.The soil passivator of the present invention has many advantages, such as that repairing effect is good, environmental-friendly, repairing efficiency is short and long-acting, can supplement soil nutrient content, improves soil texture.
Description
Technical field
The invention belongs to soil remediation fields, are related to a kind of soil passivator and its system reducing geobiont available Cd
Preparation Method and application method.
Background technology
In recent years, it is influenced by unreasonable use such as industrial development, mineral exploration and exploitation, sewage irrigation and fertilizer and pesticide, farmland
Heavy metal pollution of soil is increasingly valued by people.Studies have shown that the crop yield in China 13.86% is by heavy metals in farmland
Influence.Different from organic pollution, heavy metal is non-degradable under field conditions (factors), and can be entered by root system of plant and make object
It is interior, seriously affect crop quality and quality, in some instances it may even be possible to human body be entered by food chain, seriously threaten the health of the mankind.According to
Joint on April 17th, 2014 publication of Chinese Ministry of Environmental Protection and Ministry of Land and Resources《National Soil Pollution Investigation bulletin》, China arable land
Soil point exceeding standard rate is 19.4%, and wherein Cadmium in Soil exceeding standard rate is 7.0%, exceeding standard rate highest.The cadmium pollution of China farmland is main
It is distributed in the southern province such as Sichuan, Guangxi and Hunan, the utilization of non-ferrous metal are cause topsoil soils cadmium exceeded main
Reason.
Currently, the technology for administering Cadmium Pollution in Soils mainly has physical-chemical process (including heavy metal pollution of soil, chemical passivation technology and electricity
Dynamic recovery technique etc.) and bioremediation technology etc..Big, the electro reclamation cost big to soil disturbance compared to heavy metal pollution of soil quantities
It is higher, the disadvantage of biological prosthetic period length and slowly effect etc. so that chemical passivation technical advantage more highlights.Currently, chemistry is blunt
Change technology is quick, at low cost, it has also become administers the main means of Cadmium Pollution in Soils.But in view of heavy metals in farmland reparation
Purpose with require so that it is necessary to research and develop a kind of ingredient safely, effectively and efficiently, while soil physico-chemical property can be improved, carried
The chemical inactivators of high soil fertility.
To farmland cadmium pollution soil, the bio-available Zn concentration of research wherein cadmium has more practical significance than its total amount.Cadmium is in soil
In occurrence status there are many, plant available enters internal only water-soluble state and exchange state, is generally defined as effectively
State cadmium.In many researchs studied in terms of DTPA is applied to heavy metal-polluted soil validity.Therefore this patent focuses more on
Passivator extracts soil DTPA the reduction degree of state cadmium.
Patent CN 107880888A disclose a kind of cadmium passivator, and main component is bentonite, lime, iron chloride, decomposed
Stalk and phosphate fertilizer.The additive amount of the passivator is that per kilogram soil adds 10g~80g passivator, and additive amount is larger, excessively high
It is larger that additive amount can cause soil physico-chemical property to change, and may influence the growth of crop.In patent iron chloride used or its replace
For property molysite, such as ferric sulfate, ferric nitrate, there is also generate the risk poisoned to root system of plant.In addition, curing cycle be 10d~
60d, curing cycle are longer.
Patent CN 107674679A disclose a kind of cadmium pollution soil renovation agent, by citric acid 5%~10%, humic
Acid 20%~50%, flyash 40%~70% form, wherein the highest flyash of content be a kind of industrial waste, containing cadmium,
The toxic heavy metals such as mercury, lead, chromium, arsenic, there may be the risks of secondary pollution for long-time service or adding too much.
Patent CN 106967441A disclose a kind of farmland cadmium pollution soil renovation agent, and main preparation process is that will give up
It abandons water purifier active carbon filter element powder to be dispersed in water with clay mineral powder, adjusts pH to 2~5, be transferred in hydrothermal reaction kettle,
Hydro-thermal reaction is carried out, hydro-thermal reaction product is placed under protective atmosphere and calcines；Calcined product and discarded water purifier PP cotton filter element powder,
PH adjusting agent and organic fertilizer mixing, obtain repair materials.Its preparation process is cumbersome, and material production quantity is low, is not suitable for extensive
Farmland soil heavy metals reparation.
Patent CN 105273721A disclose heavy metal cadmium farmland renovation agent, main component be quick lime, lime stone,
Sepiolite, vermiculite and attapulgite, since clay mineral adsorption capacity is limited, which relies primarily on raw stone to the passivation of cadmium
For ash with lime stone to the raising effect of soil pH, the two is basic matterial, is easy to affect greatly soil physico-chemical property, together
When material also require to ensure the quality of rice in conjunction with foliar fertilizer.
Generally speaking, at present existing agricultural land soil passivator all have that preparation process is cumbersome, additive amount is high and it is alkaline compared with
The limitations such as strong.Therefore, it is necessary to develop, one kind is efficient, safety, prepares simple and widely used soil passivator, for dropping
The content of low geobiont available Cd, while passivator cannot affect greatly soil physico-chemical property.
Invention content
For existing farmland cadmium pollution passivator there are the problem of, the purpose of the present invention is to provide it is a kind of it is environmental-friendly,
Preparation is simple, additive amount is low, repairing efficiency is short, can efficiently reduce the soil passivator of geobiont available Cd.The present invention is logical
Addition animal bone powder and siliceous fertilizer are crossed, is acted on using coordinated each other, and coordinate biological calcium material and animal waste, it can
Effectively to reduce the available Cd content in soil, reduce crops to every absorption；Soil physico-chemical property will not be made simultaneously
At larger impact.Soil passivator of the present invention is convenient for field application, does not interfere with normal agricultural production；Soil can also be supplemented
Earth silicon element, improves soil texture.
For this purpose, the present invention uses following technical scheme：
In a first aspect, the present invention provides a kind of soil passivator reducing geobiont available Cd, the soil is blunt
Agent includes following component by mass percentage：
Wherein, the mass percent of the animal bone powder can be 30wt%, 35wt%, 40wt%, 45wt% or 50wt%
Deng it is not limited to cited numerical value, other unrequited numerical value are equally applicable in the numberical range；The matter of the siliceous fertilizer
It can be 30wt%, 35wt%, 40wt%, 45wt% or 50wt% etc. to measure percentage, it is not limited to cited numerical value, is somebody's turn to do
Other unrequited numerical value are equally applicable in numberical range；The mass percent of biological calcium material (can not add BIOLOGICAL CALCIUM for 0
Material), 3wt%, 5wt%, 7wt%, 10wt%, 13wt%, 15wt% or 20wt% etc., it is not limited to cited number
Value, other interior unrequited numerical value of the numberical range are equally applicable；The mass percent of the animal waste (can not add for 0
Add animal waste), 3wt%, 5wt%, 7wt%, 10wt%, 13wt%, 15wt% or 20wt% etc., it is not limited to listed
The numerical value of act, other interior unrequited numerical value of the numberical range are equally applicable.
In the present invention, the animal bone powder, be ox bone, pig bone or sheep bone in any one or at least two combination through grinding
The substance obtained after mill contains abundant minerals, most importantly hydroxyapatite crystals [Ca10(PO4)6(OH)2] and it is unformed
Calcium monohydrogen phosphate (CaHPO4).Animal bone powder can be that soil supplements calcium element and phosphorus nourishing, while forming phosphorus with the cadmium in soil
Hydrochlorate precipitates, to make biologically effective state cadmium in soil reduce.
The siliceous fertilizer main component has calcium oxide, magnesia and silica, and calcium, magnesium and beneficial can be provided for soil
Elemental silicon is a kind of agriculturally common siliceous fertilizer.Meanwhile soil pH can be improved, so that the cadmium in soil is formed carbonate, silicate
And hydroxide precipitation, so that the activity of cadmium in soil is reduced, reduces crops and the absorption of cadmium is accumulated；
The biology calcium material, it is cheap, it derives from a wealth of sources, main component is calcium carbonate, is conducive to cadmium and forms carbonic acid
Cadmium or cadmium hydroxide precipitation, while supplementing soil calcium element nutrition.In addition, calcium ion is close with cadmium ion radius, formed with cadmium competing
Mechanism is striven, absorption of the root system of plant to cadmium is unfavorable for.
The animal waste, there are many functional groups on the surface of compound, can adsorb the cadmium in fixing soil.Simultaneously
The intrinsic reducing condition of animal waste is conducive to heavy metal cadmium and exists in the form of cadmium sulfide, is further reduced cadmium in the soil
Validity.
In the present invention, animal bone powder and siliceous fertilizer are main component, the hydroxyl phosphorus in animal bone powder in the soil passivator
Lime stone in siliceous fertilizer calcium oxide and the basic matterials such as magnesia act on each other, by making cadmium form cadmium phosphate, cadmium carbonate or hydrogen
The precipitations such as cadmium oxide effectively reduce the content of biologically effective state cadmium in soil.Also, the ratio of animal bone powder and siliceous fertilizer should also be controlled
In the reasonable scope, adding too much can be such that rehabilitation cost increases, and be affected greatly to soil physico-chemical property system.Biology
Calcium material and animal wastes are present in patent of the present invention as submember, are mainly used for working as animal bone powder or silicon
In the case that fertile usage amount is limited, such as soil pH to be repaired is higher, and the percentage of siliceous fertilizer needs to control in relatively low range.Together
When biology calcium material and animal wastes use, be also beneficial to the recycling of resource.Soil passivator of the present invention will not
Soil physico-chemical property is affected greatly.
It is used as currently preferred technical solution below, but not as the limitation of technical solution provided by the invention, passes through
Following technical scheme can preferably reach and realize the technical purpose and advantageous effect of the present invention.
As currently preferred technical solution, the soil-repairing agent includes following component by mass percentage：
As currently preferred technical solution, the soil passivator is grouped as by following group by mass percentage：
As currently preferred technical solution, animal bone powder, siliceous fertilizer, biological calcium material and family in the soil passivator
The mass ratio of animal manure just is (3~5):(3~5):(0~2):(0~2), for example, 3:(3~5):(0~2):(0~2), 3.5:
(3~5):(0~2):(0~2), 4:(3~5):(0~2):(0~2), 4.5:(3~5):(0~2):(0~2) or 5:(3~
5):(0~2):(0~2) etc., for another example (3~5):3:(0~2):(0~2), (3~5):3.5:(0~2):(0~2), (3~
5):4:(0~2):(0~2), (3~5):4.5:(0~2):(0~2) or (3~5):5:(0~2):(0~2) etc., for another example (3
~5):(3~5):0:(0~2), (3~5):(3~5):0.5:(0~2), (3~5):(3~5):1:(0~2), (3~5):
(3~5):1.5:(0~2) or (3~5):(3~5):2:(0~2) etc., for another example (3~5):(3~5):(0~2):0, (3~
5):(3~5):(0~2):0.5, (3~5):(3~5):(0~2):1, (3~5):(3~5):(0~2):1.5 or (3~5):
(3~5):(0~2):2 etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range are equally suitable
With preferably 4:4:1:1.
In the present invention, the ratio of each raw material is not arbitrary addition, the dosage of each substance for cadmium passivation effect and
Soil pH has crucial effect, and the mass ratio by animal bone powder, siliceous fertilizer, biological calcium material and animal waste is 4:4:1:When 1, institute
The passivation effect reached is best, and the influence to soil pH is smaller.
As currently preferred technical solution, the animal bone powder is for any one in ox bone, pig bone or sheep bone or extremely
Few two kinds of the polished obtained substance of combination, the combination is typical but non-limiting examples have：The combination of ox bone and pig bone,
The combination of pig bone and sheep bone, the combination etc. of ox bone, pig bone and sheep bone.
Preferably, the mesh number of the animal bone powder is the mesh of 100 mesh~300, for example, 100 mesh, 140 mesh, 160 mesh, 180 mesh,
200 mesh, 240 mesh, 260 mesh, 280 mesh or 300 mesh etc., it is not limited to cited numerical value, in the numberical range, other are not
The numerical value enumerated is equally applicable, preferably 200 mesh.
Preferably, in the siliceous fertilizer MgO content 4wt%~9wt%, such as 4wt%, 5wt%, 6wt%, 7wt%,
8wt% or 9wt% etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range are equally applicable；
Content 25wt%~40wt% of CaO, such as 25wt%, 27wt%, 30wt%, 33wt%, 35wt%, 37wt% or 40wt%
Deng it is not limited to cited numerical value, other unrequited numerical value are equally applicable in the numberical range；SiO2Content
25wt~35wt%, such as 25wt%, 27wt%, 30wt%, 33wt% or 35wt% etc., it is not limited to cited number
Value, other interior unrequited numerical value of the numberical range are equally applicable.
Preferably, the biological calcium material be any one in oyster shell, marine rainbow shell, Arca Subcrenata, eggshell or corallite or
At least two polished obtained substance of combination, it is not limited to cited biological calcium material, other are same reachable
Biological calcium material to purpose is equally applicable to the present invention.
Preferably, the mesh number of the biological calcium material is the mesh of 50 mesh~200, for example, 50 mesh, 80 mesh, 100 mesh, 120 mesh,
140 mesh, 160 mesh, 180 mesh or 200 mesh etc., it is not limited to cited numerical value, other are unrequited in the numberical range
Numerical value is equally applicable, preferably 100 mesh.
Preferably, the animal waste is cow dung and/or the sterilization fermentation of pig manure drying, dries the object crushed again
Matter.
As currently preferred technical solution, the drying sterilization fermentation process specifically includes following steps：It will be pending
The animal waste and auxiliary material of ferment mix, and then carry out temperature controlled fermentation.
Preferably, the auxiliary material is leavening and corn flour and/or wheat bran.
Preferably, leavening and the mass ratio of corn flour and/or wheat bran are 1 in the auxiliary material:(5~10), such as 1:5、
1:6、1:7、1:8、1:9 or 1:10 etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range
It is equally applicable.
Preferably, per adding 0.2kg~0.3kg auxiliary materials in animal waste to be fermented 1000kg, such as 0.2kg,
0.22kg, 0.24kg, 0.26kg, 0.28kg or 0.3kg etc., it is not limited to cited numerical value, in the numberical range its
His unrequited numerical value is equally applicable.
Preferably, described to be mixed into：The form that heap is built when spreading auxiliary material is mixed.
Preferably, a height of 1.5m~2m of the heap for building heap, such as 1.5m, 1.6m, 1.7m, 1.8m, 1.9m or 2m etc., but
It is not limited in cited numerical value, other unrequited numerical value are equally applicable in the numberical range；Wide 1.5m~2m, such as
1.5m, 1.6m, 1.7m, 1.8m, 1.9m or 2m etc., it is not limited to cited numerical value, interior other of the numberical range do not arrange
The numerical value of act is equally applicable.
Preferably, the water content of mixture is controlled in the temperature controlled fermentation as 40wt%~65wt%, such as 40wt%,
45wt%, 50wt%, 55wt%, 60wt% or 65wt% etc., it is not limited to cited numerical value, in the numberical range its
His unrequited numerical value is equally applicable.
Preferably, the start-up temperature in the temperature controlled fermentation is 20 DEG C or more, fermentation calefaction to 70 DEG C~75 DEG C, such as 70
DEG C, 71 DEG C, 72 DEG C, 73 DEG C, 74 DEG C or 75 DEG C etc., it is not limited to cited numerical value, other are not arranged in the numberical range
The numerical value of act is equally applicable.
Preferably, batch mixing is overturned when temperature reaches 65 DEG C during fermentation calefaction；
More specifically but atypical process is：
By leavening and corn flour and/or wheat bran, with 1:The ratio mixing of (5~10), as auxiliary material；By family to be fermented
Animal manure just adds the weight ratio of 0.25kg auxiliary materials, the form that heap is built when spreading auxiliary material to be mixed with 1000kg, and the high 1.5m of heap~
2m, wide 2m, length is unlimited, then ferments.
Dunghill water content is controlled in fermentation process between 40wt%~65wt%.Start-up temperature is controlled at 20 DEG C or more,
Fermentation calefaction is controlled at 70 DEG C~75 DEG C.Temperature is increased at 65 DEG C and overturns in fermentation process, promotes zymogenic aerobic fermentation
Process, 65 DEG C of high temperature twice is will appear in fermentation process, and fermentation can be completed in overturning twice.Material is in dark brown after fermentation
Color, temperature are down to room temperature, carry out dried and crushed.
Preferably, described to crush to be crushed to grain size 0.5mm~1mm, for example, 0.5mm, 0.6mm, 0.7mm, 0.8mm,
0.9mm or 1mm etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range are equally applicable, excellent
It is selected as 0.5mm.
Second aspect, the present invention provides the preparation method of above-mentioned soil passivator, the preparation method includes：It will formula
Animal bone powder, siliceous fertilizer, biological calcium substance and the animal waste mixing of amount, are ground, obtain soil passivator.
It is described to be ground to be ground to the mesh of 50 mesh~300 as currently preferred technical solution, for example, 50 mesh, 80 mesh,
100 mesh, 140 mesh, 160 mesh, 180 mesh, 200 mesh, 240 mesh, 260 mesh, 280 mesh or 300 mesh etc., it is not limited to cited
Numerical value, other interior unrequited numerical value of the numberical range are equally applicable, preferably 100 mesh.
The third aspect, the present invention provides the application method of above-mentioned soil passivator, the method includes：By the soil
Passivator is applied to Cd-polluted farmland, and applied amount is ‰~1.5wt of 0.3wt ‰ of soil butt quality, such as 0.3wt ‰,
0.5wt ‰, 0.7wt ‰, 1wt ‰, 1.25wt ‰ or 1.5wt ‰ etc., it is not limited to cited numerical value, the numberical range
Other interior unrequited numerical value are equally applicable, preferably 0.7wt ‰.
As can be seen that additive amount is less in use for soil passivator of the present invention.
As currently preferred technical solution, the application method of the soil passivator is：By the soil passivator
The soil surface in Cd-polluted farmland is spread fertilizer over the fields in crop-planting the last week, makes itself and soil mixing by turning over, then spray water
Point.
As currently preferred technical solution, the moisture of sprinkling makes soil moisture content reach the 16.8wt% of soil butt
~22.4wt%, for example, 16.8wt%, 17.5wt%, 18wt%, 19wt%, 20wt%, 21wt%, 21.5wt%, 22wt%,
22.4wt% etc., it is not limited to cited numerical value, other interior unrequited numerical value of the numberical range are equally applicable.
Compared with prior art, the invention has the advantages that：
(1) soil passivator of the present invention includes mainly four kinds of animal bone powder, siliceous fertilizer, biological calcium material and animal waste
Component makes the activity of cadmium in soil reduce, effectively by the way that soil passivating agent composition and its consumption proportion are optimized and adjusted
State cadmium content reduces by 40% or more, is not affected greatly to soil physico-chemical property；
(2) soil passivator raw material of the present invention are easy to get, simple for process, repair efficiently, effect is lasting；
(3) soil passivator each component ingredient safety of the present invention, is conducive to the formation of soil aggregate structure, Bu Huiying
Ring the normal agricultural production process of agricultural land soil；
(4) soil passivator of the present invention can provide the nutrients such as phosphorus, calcium, magnesium and silicon for soil.
Specific implementation mode
For the present invention is better described, it is easy to understand technical scheme of the present invention, below further specifically to the present invention
It is bright.But following embodiments is only the simple example of the present invention, does not represent or limit the scope of the present invention, this
Invention protection domain is subject to claims.
Specific embodiment of the invention part provide it is a kind of reduce geobiont available Cd soil passivator and its
Preparation method and application method, the soil passivator include following component by mass percentage：Animal bone powder 30wt%~
50wt%；Siliceous fertilizer 30wt%~50wt%；Biological 0~20wt% of calcium material；0~20wt% of animal waste.
Preparation method includes：The animal bone powder of formula ratio, siliceous fertilizer, biological calcium material and animal waste are mixed, carried out
Grinding, obtains soil passivator.
Its application method includes：The soil passivator is applied to Cd-polluted farmland, applied amount is soil dry matrix
‰~1.5wt of 0.3wt ‰ of amount, preferably 0.7wt ‰.
It is present invention typical case but non-limiting embodiment below：
Embodiment 1：
Present embodiments provide the soil passivator and preparation method thereof of 4 kinds of reduction geobiont available Cds, the soil
The component of earth passivator by mass percentage is as shown in table 1：
Passivator formula composition used in 1 embodiment of table
Wherein, the animal bone powder is bovine bone powder, and mesh number is 200 mesh；The content 8.8wt%'s, CaO of MgO contains in siliceous fertilizer
Measure 40wt%, SiO2Content 25wt%；Biological calcium material is oyster shell, and mesh number is 100 mesh；Animal waste is the ox fermented
Excrement, fermentation process are：
By leavening and corn flour and/or wheat bran, with 1:6~8 ratio mixing, as auxiliary material；By domestic animal to be fermented
Excrement adds the weight ratio of 0.25kg auxiliary materials with 1000kg, and the form that heap is built when spreading auxiliary material is mixed, the high 1.5m~2m of heap,
Wide 2m, length is unlimited, then ferments.
Dunghill water content is controlled in fermentation process between 40wt%~65wt%.Start-up temperature is controlled at 20 DEG C or more,
Fermentation calefaction is controlled at 70 DEG C~75 DEG C.Temperature is increased at 65 DEG C and overturns in fermentation process, promotes zymogenic aerobic fermentation
Process, 65 DEG C of high temperature twice is will appear in fermentation process, and fermentation can be completed in overturning twice.Material is in dark brown after fermentation
Color, temperature are down to room temperature, are dried, and are crushed to grain size 0.5mm.
Preparation method is：The animal bone powder of formula ratio, siliceous fertilizer, biological calcium material and animal waste are mixed, ground
Mill, obtains soil passivator.
Embodiment 2：
The application method for present embodiments providing the soil passivator that number is 1 described in embodiment 1, uses it for repairing
Cadmium pollution soil.Soil picks up from City in Sichuan Province (No.1 area, table 2), soil pH, total cadmium content (mg/kg) and sulfonitric
Method leaching value (μ g/L,《Solid waste Leaching leaching method sulfonitric method》(HJ/T 299-2007)) it is shown in Table 2.Total cadmium
Content 0.392mg/kg is more than《Standard of soil environment quality》0.300mg/kg as defined in II grades of standards.Target contaminant cadmium soaks
It is 19.1 μ g/L to go out content, is higher than 5 μ g/L of water environment quality standard (GB3838-2002) Group III desired value, the present embodiment
Target is to reduce the bio-available Zn concentration of target contaminant cadmium.
2 City in Sichuan Province cadmium pollution soil background information of table
100g soil to be repaired is weighed in 500mL storage boxes, weighs No. 1 soil passivator 0.03g described in embodiment 1
(0.3wt ‰ of soil butt quality) is stirred and evenly mixed in storage box, adds 18mL distilled water, continues to stir 5min, preservative film
Sealing, capping；Change No. 1 soil passivator additive amount described in embodiment 1 into 0.05g, 0.07g, 0.1g (soil dry respectively
0.5wt ‰, 0.7wt ‰, the 1wt ‰ of matrix amount), other operations are identical.All maintenance pedotheques being sealed are placed on training
It is cultivated 2 weeks under the conditions of foster case (25 DEG C).Using《The measurement diethylene triamine pentacetic acid (DTPA) extraction-inductance of 8 kinds of available state elements of soil
Coupled plasma optical emission spectroscopic methodology》(HJ804-2016) method measures non-rehabilitating soil and is extracted with DTPA in soil after maintenance
State cadmium content, and soil pH value is detected, testing result such as following table.
Test result after 3 embodiment of table, 2 soil remediation
As can be seen that passivator additive amount is ‰~1wt of soil butt 0.3wt ‰, DTPA extracts the reduction amplitude of state cadmium
Reach 38.5%~78.8%, wherein additive amount is the 0.7wt ‰ of soil butt, and DTPA extraction state cadmiums reduce amplitude and are
71.2%, soil pH value slightly raising before and after the processing, but without significant change.
Embodiment 3：
The application method for present embodiments providing No. 1 soil passivator described in embodiment 1, is used it for restoring cadmium polluted
Soil.Soil picks up from City in Sichuan Province (table 2, No. two areas), and soil pH, total cadmium content (mg/kg) and sulfonitric method leach
Value (μ g/L,《Solid waste Leaching leaching method sulfonitric method》(HJ/T 299-2007)) it is shown in Table 2.Total cadmium
0.420mg/kg is more than《Standard of soil environment quality》0.300mg/kg as defined in II grades of standards.The leaching of target contaminant cadmium contains
Amount is 23.3 μ g/L, is higher than 5 μ g/L of water environment quality standard (GB3838-2002) Group III desired value, the mesh of the present embodiment
Mark is the bio-available Zn concentration for reducing target contaminant cadmium.
100g soil to be repaired is weighed in 500mL storage boxes, weighs the soil passivation that number described in embodiment 1 is 1
Agent 0.03g (0.3wt ‰ of soil butt quality) is stirred and evenly mixed in storage box, is added 18ml distilled water, is continued to stir
5min, preservative film sealing, capping；By the soil passivator additive amount described in embodiment 1 change into respectively 0.05g, 0.07g,
0.1g (0.5wt ‰, 0.7wt ‰, the 1wt ‰ of soil butt quality), other operations are identical.By all maintenance soil being sealed
Sample is cultivated 2 weeks under the conditions of being placed on incubator (25 DEG C).Using《Five second of measurement diethylenetriamine of 8 kinds of available state elements of soil
Acidleach carries-inductively coupled plasma emission spectrography》(HJ804-2016) method measures non-rehabilitating soil and soil after maintenance
Middle DTPA extracts state cadmium content, and detects soil pH value, testing result such as following table.
Test result after 4 embodiment of table, 3 soil remediation
ND expressions are not detected.
As can be seen that passivator additive amount is soil butt 0.5wt ‰, the reduction amplitude of DTPA extraction state cadmiums reaches
57.7%, contaminated soil is after adding soil butt 1wt ‰ and being passivated medicament, and the content of soil DTPA extraction state cadmiums is already below most
The reduction amplitude of low detection limits, DTPA extraction state cadmiums has reached 100%.After addition passivation medicament, stabilization effect is apparent, processing
Front and back soil pH value is without significant change.
Embodiment 4：
The application method for present embodiments providing No. 2 soil passivator described in embodiment 1, is used it for restoring cadmium polluted
Soil, soil to be repaired are same as Example 2.
100g soil to be repaired is weighed in 500mL storage boxes, weighs No. 2 soil passivator 0.07g described in embodiment 1
(0.7wt ‰ of soil butt quality) is stirred and evenly mixed in storage box, adds 18mL distilled water, continues to stir 5min, preservative film
Sealing, capping.The maintenance pedotheque being sealed is placed under the conditions of incubator (25 DEG C) and is cultivated 2 weeks.Using《8 kinds of soil has
Imitate measurement diethylene triamine pentacetic acid (DTPA) extraction-inductively coupled plasma emission spectrography of state element》(HJ804-2016) side
Method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects soil pH value, and the pH of soil is that 5.91, DTPA extracts state
Cadmium content is 0.020mg/kg, and the amplitude that reduces is 61.5%, less than the reduction amplitude under 2 identical additive amount passivator of embodiment
71.2%.
Embodiment 5：
The application method for present embodiments providing No. 3 soil passivator described in embodiment 1, is used it for restoring cadmium polluted
Soil, soil to be repaired are same as Example 2.
100g soil to be repaired is weighed in 500mL storage boxes, weighs No. 3 soil passivator 0.07g described in embodiment 1
(0.7wt ‰ of soil butt quality) is stirred and evenly mixed in storage box, adds 18mL distilled water, continues to stir 5min, preservative film
Sealing, capping.The maintenance pedotheque being sealed is placed under the conditions of incubator (25 DEG C) and is cultivated 2 weeks.Using《8 kinds of soil has
Imitate measurement diethylene triamine pentacetic acid (DTPA) extraction-inductively coupled plasma emission spectrography of state element》(HJ804-2016) side
Method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects soil pH value, and the pH of soil is that 6.28, DTPA extracts state
Cadmium content is 0.010mg/kg, and reduction amplitude has reached 80.8%, and reduction amplitude is higher, but is affected to soil pH.
Embodiment 6：
The application method for present embodiments providing No. 4 soil passivator described in embodiment 1, is used it for restoring cadmium polluted
Soil, soil to be repaired are same as Example 2.
100g soil to be repaired is weighed in 500mL storage boxes, weighs No. 4 soil passivator 0.07g described in embodiment 1
(0.7wt ‰ of soil butt quality) is stirred and evenly mixed in storage box, adds 18mL distilled water, continues to stir 5min, preservative film
Sealing, capping.The maintenance pedotheque being sealed is placed under the conditions of incubator (25 DEG C) and is cultivated 2 weeks.Using《8 kinds of soil has
Imitate measurement diethylene triamine pentacetic acid (DTPA) extraction-inductively coupled plasma emission spectrography of state element》(HJ804-2016) side
Method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects soil pH value, and the pH of soil is that 6.19, DTPA extracts state
Cadmium content is 0.013mg/kg, and reduction amplitude has reached 75.0%, and soil pH is increased to 6.19 from 5.80, and increase rate is larger.
Comparative example 1：
This comparative example provides a kind of soil passivator and preparation method thereof reducing geobiont available Cd, the soil
The composition and preparation method of earth passivator are differed only in referring to No. 1 passivator in embodiment 1：Do not include in soil passivator
Animal bone powder, other each component mass percents (wt%) include：Siliceous fertilizer 40%, biomass calcium material 30%, animal waste
30%.
The soil passivator is used for cadmium pollution soil reparation, and soil to be repaired is same as Example 2.It is to be repaired to weigh 100g
Earth backing earth weighs passivator 0.07g (0.7wt ‰ of soil butt quality) in storage box in 500mL storage boxes, and stirring is mixed
It is even, 18mL distilled water is added, continues to stir 5min, preservative film sealing, capping.The maintenance pedotheque being sealed is placed on culture
It is cultivated 2 weeks under the conditions of case (25 DEG C).Using《The measurement diethylene triamine pentacetic acid (DTPA) extraction-inductance coupling of 8 kinds of available state elements of soil
Close plasma emlssion spectrometry》(HJ804-2016) method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects
Soil pH value, it is 0.034mg/kg that the pH of soil, which is 5.97, DTPA extraction state cadmium contents, and reduction amplitude is only 34.6%.
Comparative example 2：
This comparative example provides a kind of soil passivator and preparation method thereof reducing geobiont available Cd, the soil
The composition and preparation method of earth passivator are differed only in referring to No. 1 passivator in embodiment 1：Do not include in soil passivator
Siliceous fertilizer, other each component mass percents (wt%) include：Animal bone powder 40%, biomass calcium material 30%, animal waste
30%.
The soil passivator is used for cadmium pollution soil reparation, and soil to be repaired is same as Example 2, and it is to be repaired to weigh 100g
Earth backing earth weighs passivator 0.07g (0.7wt ‰ of soil butt quality) in storage box in 500mL storage boxes, and stirring is mixed
It is even, 18mL distilled water is added, continues to stir 5min, preservative film sealing, capping.The maintenance pedotheque being sealed is placed on culture
It is cultivated 2 weeks under the conditions of case (25 DEG C).Using《The measurement diethylene triamine pentacetic acid (DTPA) extraction-inductance coupling of 8 kinds of available state elements of soil
Close plasma emlssion spectrometry》(HJ804-2016) method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects
Soil pH value, it is 0.040mg/kg that the pH of soil, which is 5.90, DTPA extraction state cadmium contents, and reduction amplitude is smaller, is 23.1%.
Comparative example 3：
This comparative example provides a kind of soil passivator and preparation method thereof reducing geobiont available Cd, the soil
The composition and preparation method of earth passivator are differed only in referring to No. 1 passivator in embodiment 1：Do not include in soil passivator
Animal bone powder and siliceous fertilizer, other each component mass percents (wt%) include：Biomass calcium material 50%, animal wastes 50%.
The soil passivator is used for cadmium pollution soil reparation, and soil to be repaired is same as Example 2.It is to be repaired to weigh 100g
Earth backing earth weighs passivator 0.07g (0.7wt ‰ of soil butt quality) in storage box in 500mL storage boxes, and stirring is mixed
It is even, 18mL distilled water is added, continues to stir 5min, preservative film sealing, capping.The maintenance pedotheque being sealed is placed on culture
It is cultivated 2 weeks under the conditions of case (25 DEG C).Using《The measurement diethylene triamine pentacetic acid (DTPA) extraction-inductance coupling of 8 kinds of available state elements of soil
Close plasma emlssion spectrometry》(HJ804-2016) method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects
Soil pH value, it is 0.049mg/kg that the pH of soil, which is 5.84, DTPA extraction state cadmium contents, and the amplitude that reduces is 5.8%.
Comparative example 4：
This comparative example provides a kind of soil passivator and preparation method thereof reducing geobiont available Cd, the soil
The composition and preparation method of earth passivator are differed only in referring to No. 1 passivator in embodiment 1：The weight percent of animal bone powder
Than reaching 70%, that is, it is added to excessive animal bone powder.Other each component mass percents (wt%) include：Siliceous fertilizer 10%, it is raw
Substance calcium material 10%, animal waste 10%.
The soil passivator is used for cadmium pollution soil reparation, and soil to be repaired is same as Example 2.It is to be repaired to weigh 100g
Earth backing earth weighs passivator 0.07g (0.7wt ‰ of soil butt quality) in storage box in 500mL storage boxes, and stirring is mixed
It is even, 18mL distilled water is added, continues to stir 5min, preservative film sealing, capping.The maintenance pedotheque being sealed is placed on culture
It is cultivated 2 weeks under the conditions of case (25 DEG C).Using《The measurement diethylene triamine pentacetic acid (DTPA) extraction-inductance coupling of 8 kinds of available state elements of soil
Close plasma emlssion spectrometry》(HJ804-2016) method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects
Soil pH value, it is 0.027mg/kg that the pH of soil, which is 5.89, DTPA extraction state cadmium contents, and reduction amplitude is only 48.1%.
As can be seen that being added to the reduction that excessive animal bone powder is also unfavorable for soil available Cd.
Comparative example 5：
This comparative example provides a kind of soil passivator and preparation method thereof reducing geobiont available Cd, the soil
The composition and preparation method of earth passivator are differed only in referring to No. 1 passivator in embodiment 1：The weight percent of siliceous fertilizer is
70%, that is, it is added to excessive siliceous fertilizer, other each component mass percents (wt%) include：Animal bone powder 10%, biomass calcium
Material 10%, animal waste 10%.
The soil passivator is used for cadmium pollution soil reparation, and soil to be repaired is same as Example 2.It is to be repaired to weigh 100g
Earth backing earth weighs passivator 0.07g (0.7wt ‰ of soil butt quality) in storage box in 500mL storage boxes, and stirring is mixed
It is even, 18mL distilled water is added, continues to stir 5min, preservative film sealing, capping.The maintenance pedotheque being sealed is placed on culture
It is cultivated 2 weeks under the conditions of case (25 DEG C).Using《The measurement diethylene triamine pentacetic acid (DTPA) extraction-inductance coupling of 8 kinds of available state elements of soil
Close plasma emlssion spectrometry》(HJ804-2016) method, DTPA extracts state cadmium content in soil after measurement maintenance, and detects
Soil pH value, it is 0.007mg/kg that the pH of soil, which is 6.50, DTPA extraction state cadmium contents, and the amplitude that reduces is 86.5%, but to soil
Earth pH is affected, i.e., may cause larger impact to the physicochemical property of soil.
Easily soil property is affected greatly as can be seen that being added to excessive siliceous fertilizer, is unfavorable for the micro- life of crop, soil
The normal growth of object etc..
Can be seen that soil passivator of the present invention with comparative example based on the above embodiments can be such that DTPA in soil extracts
State cadmium content substantially reduces, and will not be affected greatly to soil pH, has good passivation effect.Wherein each raw material
Ratio be not arbitrary addition, the dosage of each substance has crucial effect for the passivation effect of cadmium, when animal bone powder, siliceous fertilizer,
The mass ratio of biological calcium material and animal waste is 4:4:1:When 1, the passivation effect reached is best, single to add or lack it
Middle any type component is extracted the reduction limited extent of state cadmium to DTPA or is affected greatly to soil pH.
Applicant declares, and the present invention is illustrated soil passivator of the present invention and its preparation by above-described embodiment and answered
With situation, but the invention is not limited in the preparation of above-mentioned soil passivator and applicable cases, that is, do not mean that the present invention is necessary
Relying on above-mentioned preparation method and application situation could implement.Person of ordinary skill in the field is it will be clearly understood that the present invention's
Any improvement, the change of equivalence replacement and each group distribution ratio to product compositions of the present invention, the choosing of concrete application condition, mode
It selects, all falls within protection scope of the present invention and the open scope.
Claims (10)
1. a kind of soil passivator reducing geobiont available Cd, which is characterized in that the soil passivator presses quality hundred
It includes following component to divide than meter：
2. soil passivator according to claim 1, which is characterized in that the soil passivator wraps by mass percentage
Include following component：
3. soil passivator according to claim 1 or 2, which is characterized in that the soil passivator is by mass percentage
Meter is grouped as by following group：
4. according to claim 1-3 any one of them soil passivator, which is characterized in that Animal Bone in the soil passivator
Powder, siliceous fertilizer, biological calcium material and animal waste mass ratio be (3~5):(3~5):(0~2):(0~2), preferably 4:4:
1:1。
5. according to claim 1-4 any one of them soil passivator, which is characterized in that the animal bone powder is ox bone, pig
Any one in bone or sheep bone or at least two the polished obtained substance of combination；
Preferably, the mesh number of the animal bone powder is the mesh of 100 mesh~300, preferably 200 mesh；
Preferably, in the siliceous fertilizer content 4wt%~9wt%, CaO of MgO content 25wt%~40wt%, SiO2Content
25wt%~35wt%；
Preferably, the biological calcium material is any one in oyster shell, marine rainbow shell, Arca Subcrenata, eggshell or corallite or at least
Two kinds of the polished obtained substance of combination；
Preferably, the mesh number of the biological calcium material is the mesh of 50 mesh~200, preferably 100 mesh；
Preferably, the animal waste is cow dung and/or the sterilization fermentation of pig manure drying, dries the substance crushed again.
6. soil passivator according to claim 5, which is characterized in that drying sterilization fermentation process specifically include with
Lower step：Animal waste to be fermented and auxiliary material are mixed, temperature controlled fermentation is then carried out；
Preferably, the auxiliary material is leavening and corn flour and/or wheat bran；
Preferably, leavening and the mass ratio of corn flour and/or wheat bran are 1 in the auxiliary material:(5~10)；
Preferably, 0.2kg~0.3kg auxiliary materials are added in every animal waste to be fermented 1000kg；
Preferably, described to be mixed into：The form that heap is built when spreading auxiliary material is mixed；
Preferably, a height of 1.5m~2m of the heap for building heap, wide 1.5m~2m；
Preferably, the water content that mixture is controlled in the temperature controlled fermentation is 40wt%~65wt%；
Preferably, the start-up temperature in the temperature controlled fermentation is 20 DEG C or more, and fermentation calefaction is to 70 DEG C~75 DEG C；
Preferably, batch mixing is overturned when temperature reaches 65 DEG C during fermentation calefaction；
Preferably, described crush to be crushed to grain size is 0.5mm~1mm, preferably 0.5mm.
7. a kind of preparation method of soil passivator as claimed in any one of claims 1 to 6, which is characterized in that the preparation side
Method includes：The animal bone powder of formula ratio, siliceous fertilizer, biological calcium material and animal waste are mixed, are ground, soil passivation is obtained
Agent；
Preferably, described to be ground to be ground to the mesh of 50 mesh~300, preferably 100 mesh.
8. a kind of application method of soil passivator as claimed in any one of claims 1 to 6, which is characterized in that the method packet
It includes：The soil passivator is applied to Cd-polluted farmland, applied amount is ‰~1.5wt of 0.3wt ‰ of soil butt quality,
Preferably 0.7wt ‰.
9. application method according to claim 8, which is characterized in that the method is：The soil passivator is being made
Species plant the last week and spread fertilizer over the fields the soil surface in Cd-polluted farmland, make itself and soil mixing by turning over, then spray moisture.
10. application method according to claim 8 or claim 9, which is characterized in that the moisture of sprinkling makes soil moisture content reach soil
16.8wt%~22.4wt% of earth butt quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522589.XA CN108559521B (en) | 2018-05-28 | 2018-05-28 | Soil passivator for reducing soil biological available cadmium and preparation method and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810522589.XA CN108559521B (en) | 2018-05-28 | 2018-05-28 | Soil passivator for reducing soil biological available cadmium and preparation method and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108559521A true CN108559521A (en) | 2018-09-21 |
| CN108559521B CN108559521B (en) | 2020-08-04 |
Family
ID=63540313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810522589.XA Active CN108559521B (en) | 2018-05-28 | 2018-05-28 | Soil passivator for reducing soil biological available cadmium and preparation method and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108559521B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320375A (en) * | 2018-11-01 | 2019-02-12 | 湖南工学院 | A kind of organic fertilizer and its preparation method and application for promoting root surface of rice iron film to generate |
| CN109721424A (en) * | 2019-02-18 | 2019-05-07 | 江西夏氏春秋环境股份有限公司 | A kind of microorganism agricultural land soil renovation agent and its in pollution by pesticides application in farmland |
| CN110257076A (en) * | 2019-06-20 | 2019-09-20 | 湖南双红农科生态工程有限公司 | A kind of cadmium soil conditioner |
| CN110976496A (en) * | 2019-12-27 | 2020-04-10 | 成都新柯力化工科技有限公司 | Remediation method capable of removing heavy metals in soil |
| CN110981627A (en) * | 2019-12-07 | 2020-04-10 | 云南省个旧市大通磷化工有限公司 | Acid soil conditioner |
| CN112125749A (en) * | 2020-09-02 | 2020-12-25 | 广东佳德环保科技有限公司 | Composite repairing agent for heavy metal contaminated soil and application method thereof |
| CN112496020A (en) * | 2020-10-30 | 2021-03-16 | 煜环环境科技有限公司 | Restoration method for reducing effective state of heavy metal in farmland soil |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003452A (en) * | 2007-01-10 | 2007-07-25 | 南京大学 | Regulation and control agent in use for treating soil polluted by heavy metals |
| CN103641656A (en) * | 2013-11-06 | 2014-03-19 | 马鞍山科邦生态肥有限公司 | An efficient manure fertilizer and a preparation method thereof |
| CN104449745A (en) * | 2014-11-10 | 2015-03-25 | 中国环境科学研究院 | Stabilizer for heavy metal compound contaminated soil and preparation method of stabilizer for heavy metal compound contaminated soil |
| CN104945099A (en) * | 2015-06-05 | 2015-09-30 | 明光市数智肥业有限公司 | Controlled release fertilizer synergist for improving soil fertility for corn and preparation method thereof |
| CN105130534A (en) * | 2015-08-06 | 2015-12-09 | 青岛点石文具用品有限公司 | Trace element biological mineral fertilizer |
| CN106396936A (en) * | 2016-08-31 | 2017-02-15 | 张德才 | Multi-element silicon fertilizer as well as preparation method and application thereof |
| CN106748317A (en) * | 2017-02-24 | 2017-05-31 | 蚌埠市凯婷农民种植专业合作社 | A kind of retain water and nutrients are breathed freely Nutrition Soil |
| CN107311767A (en) * | 2017-07-26 | 2017-11-03 | 望江县乡缘农业有限责任公司 | A kind of organic slow-release composite fertilizer purified for paddy soil |
| CN107695091A (en) * | 2017-09-21 | 2018-02-16 | 北京润鸣环境科技有限公司 | A kind of soil-repairing agent of Cd-polluted farmland and its production and use |
| CN107721609A (en) * | 2017-11-14 | 2018-02-23 | 定远县佩璋生态园有限公司 | A kind of wine-growing resists hardened organic fertilizer with high sustained release |
| CN108002945A (en) * | 2017-11-08 | 2018-05-08 | 乔增 | A kind of organic soy fertilizer |
-
2018
- 2018-05-28 CN CN201810522589.XA patent/CN108559521B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101003452A (en) * | 2007-01-10 | 2007-07-25 | 南京大学 | Regulation and control agent in use for treating soil polluted by heavy metals |
| CN103641656A (en) * | 2013-11-06 | 2014-03-19 | 马鞍山科邦生态肥有限公司 | An efficient manure fertilizer and a preparation method thereof |
| CN104449745A (en) * | 2014-11-10 | 2015-03-25 | 中国环境科学研究院 | Stabilizer for heavy metal compound contaminated soil and preparation method of stabilizer for heavy metal compound contaminated soil |
| CN104945099A (en) * | 2015-06-05 | 2015-09-30 | 明光市数智肥业有限公司 | Controlled release fertilizer synergist for improving soil fertility for corn and preparation method thereof |
| CN105130534A (en) * | 2015-08-06 | 2015-12-09 | 青岛点石文具用品有限公司 | Trace element biological mineral fertilizer |
| CN106396936A (en) * | 2016-08-31 | 2017-02-15 | 张德才 | Multi-element silicon fertilizer as well as preparation method and application thereof |
| CN106748317A (en) * | 2017-02-24 | 2017-05-31 | 蚌埠市凯婷农民种植专业合作社 | A kind of retain water and nutrients are breathed freely Nutrition Soil |
| CN107311767A (en) * | 2017-07-26 | 2017-11-03 | 望江县乡缘农业有限责任公司 | A kind of organic slow-release composite fertilizer purified for paddy soil |
| CN107695091A (en) * | 2017-09-21 | 2018-02-16 | 北京润鸣环境科技有限公司 | A kind of soil-repairing agent of Cd-polluted farmland and its production and use |
| CN108002945A (en) * | 2017-11-08 | 2018-05-08 | 乔增 | A kind of organic soy fertilizer |
| CN107721609A (en) * | 2017-11-14 | 2018-02-23 | 定远县佩璋生态园有限公司 | A kind of wine-growing resists hardened organic fertilizer with high sustained release |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109320375A (en) * | 2018-11-01 | 2019-02-12 | 湖南工学院 | A kind of organic fertilizer and its preparation method and application for promoting root surface of rice iron film to generate |
| CN109721424A (en) * | 2019-02-18 | 2019-05-07 | 江西夏氏春秋环境股份有限公司 | A kind of microorganism agricultural land soil renovation agent and its in pollution by pesticides application in farmland |
| CN110257076A (en) * | 2019-06-20 | 2019-09-20 | 湖南双红农科生态工程有限公司 | A kind of cadmium soil conditioner |
| CN110981627A (en) * | 2019-12-07 | 2020-04-10 | 云南省个旧市大通磷化工有限公司 | Acid soil conditioner |
| CN110976496A (en) * | 2019-12-27 | 2020-04-10 | 成都新柯力化工科技有限公司 | Remediation method capable of removing heavy metals in soil |
| CN112125749A (en) * | 2020-09-02 | 2020-12-25 | 广东佳德环保科技有限公司 | Composite repairing agent for heavy metal contaminated soil and application method thereof |
| CN112496020A (en) * | 2020-10-30 | 2021-03-16 | 煜环环境科技有限公司 | Restoration method for reducing effective state of heavy metal in farmland soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108559521B (en) | 2020-08-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108559521A (en) | A kind of soil passivator and preparation method thereof and application method reducing geobiont available Cd | |
| CN105802637B (en) | A kind of soil heavy metal passivant and preparation method and the passivating method to Cadmium in Soil | |
| CN107446589B (en) | Acid soil cadmium passivator and application thereof | |
| CN102807872B (en) | Biochar mixing type protected horticultural vegetable field soil heavy metal passivant and preparation method thereof | |
| CN104193546B (en) | A kind ofly reduce cadmium, the composite soil passivator of lead content and preparation and application thereof | |
| CN104327858B (en) | A kind of soil heavy metal combined stabilizer and its passivating method to heavy metal-polluted soil | |
| CN105347907B (en) | Charcoal base manure material is repaired for Heavy Metal Pollution In Cultivated Land | |
| CN106147778A (en) | Passivator, preparation method and applications for repairing heavy metal in soil combined pollution | |
| CN108085010A (en) | A kind of complex repairation agent and its application for heavy metal pollution of soil | |
| CN108165276A (en) | A kind of composite conditioner suitable for northern alkaline soil heavy metal pollution | |
| CN104694134A (en) | Soil conditioner and preparation method thereof | |
| CN104046361A (en) | Composite heavy metal polluted soil conditioner as well as application and application method thereof | |
| CN1275884C (en) | Bayer process red mud matrix improvement technology | |
| CN101240172A (en) | Mixing soil conditioner and its preparation method | |
| CN108658708A (en) | A kind of fertilizing method and application for farmland cadmium pollution prevention | |
| CN104338741A (en) | Heavy metal polluted soil repairing agent with high content of biocarbon and humus and application method thereof | |
| CN105646103A (en) | Silkworm excrement and shell ecologic acidic soil conditioner and preparation method thereof | |
| CN106396845A (en) | Biological organic silicon bacterial fertilizer capable of degrading heavy metals with high efficiency, and preparation method thereof | |
| CN106187570A (en) | A kind of acid ground conditioning fertilizer and preparation method thereof | |
| CN105838382A (en) | Efficient cadmium reduction soil repair agent and application thereof | |
| CN108929694A (en) | It is a kind of for administering the soil conditioner and preparation method thereof in light moderate cadmium pollution acidity farmland | |
| CN108003886A (en) | A kind of composite passivant and its application method of remediating heavy metal combined pollution agricultural land soil | |
| CN105670636B (en) | A kind of passivating material and its preparation method and application for repairing cadmium copper pollution acid soil | |
| CN106045783A (en) | Acid soil conditioner and preparation method thereof | |
| CN113979811A (en) | Selenium-rich cadmium-reducing lead-reducing mineral substance bio-organic fertilizer and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |