CN110041943A - A method of slow-released soil heavy metal deactivator is prepared using pig bone - Google Patents
A method of slow-released soil heavy metal deactivator is prepared using pig bone Download PDFInfo
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- CN110041943A CN110041943A CN201910362307.9A CN201910362307A CN110041943A CN 110041943 A CN110041943 A CN 110041943A CN 201910362307 A CN201910362307 A CN 201910362307A CN 110041943 A CN110041943 A CN 110041943A
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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
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Abstract
The present invention relates to a kind of methods for preparing slow-released soil heavy metal deactivator using pig bone, belong to soil-repairing agent preparation technical field.The present invention is first using pig bone as raw material, it is put into and is steamed in glue pot after being crushed, under the action of the thermal energy of high-temperature vapor and pressure ossein contained by aggregate is decomposed, colloid is gradually oozed out out of osteocyte wall, reusable heat water retting extracts to obtain gelatine and pig bone slag, then obtained pig bone glue will be extracted and sea-mussel mucin mixes, sustained release adhesive is made in reaction in the presence of biology enzyme, finally adhesive mixing granulation will be sustained with self-control after the grinding of pig bone slag, it can be prepared by slow-released soil heavy metal deactivator, slow-released soil heavy metal deactivator produced by the present invention, good passivation effect, effective acting time is long, slow release effect is good, it has broad application prospects.
Description
Technical field
The present invention relates to a kind of methods for preparing slow-released soil heavy metal deactivator using pig bone, belong to soil-repairing agent
Preparation technical field.
Background technique
With the development of industrial and agricultural production, agricultural environment pollution especially heavy metal pollution of soil problem is more and more prominent
Out.Soil environment quality problem is directly related to the safety of agricultural product, the Quality Safety Problems of Agricultural Products caused by soil pollution
Increase year by year with Mass disturbance, becomes an important factor for influencing masses' health and social stability.The agriculture of China's large area
Field heavy metal pollution of soil, it is difficult to be solved the problems, such as using single recovery technique method.Urgently develop one kind can large area push away
Wide application, cost is relatively low, does not miss the farmland soil heavy metals Treatment process method in farming season, is contained with reducing heavy metal in agricultural product
Amount.
In recent years, some new materials are gradually used to restoration of soil polluted by heavy metal, such as mesoporous material, function membrane material
Material, plant polyphenol substance and nano material etc..After using natural clay as templated synthesis nano material, the unique structure of clay is utilized
Property, the nano material of synthesis have the characteristics that size is small, reactivity is strong.Since new material has special surface texture
And granularity, just there is preferable repairing effect under lower amount of application.Xu Yingming etc. is using mesoporous material as matrix, using copolycondensation
Method is introduced the sulfydryl for having strong binding ability to heavy metal ion by way of surface modification, prepares large specific surface area
Organic-inorganic porous hybrid material, the results showed that, which has good absorption is fixed to make cadmium, the lead ion in water
With.Then, Wang Lin etc. is polluted using Cd, Pb in above-mentioned hybrid material rehabilitating soil, and pot experiment shows the hybrid material energy
Cb, Pb content in soil available Cb, Pb and rape body are reduced, and hybrid material and phosphatic combined processing are not only
It is handled on reducing soil and rape in-vivo metal content better than single hybrid material, overground part and root
Biomass also significantly improves, using X X-ray photoelectron spectroscopy X (XPS) analysis obtain, hybrid material surface sulfydryl with
Complexation reaction occurs for Cd, Pb ion to heavy metal-passivated contaminated soil.There is researcher to reduce Polluted Soil using nano zero valence iron
The validity of Cd, Cr and Zn in earth, the results showed that, soil texture can be improved, hence it is evident that improve fixed metal stability and
Barley production.Wherein, all fine to the repairing effect of Cr and stability, the stability repaired to Zn is preferable, but repairing effect one
As.But also there is researcher by comparative study charcoal, ferriferous oxide, zirlite and silver nano material to extracting state in soil
The repairing effect of Pb, Cu are found, compared with silver nano material, the charcoal handled by 300 DEG C has the effect of best.
Passivating technique refers to by applying passivator into soil, and heavy metal is changed on physics and chemical property more
Stable substance reduces the dissolubility of heavy metal, reduces to influence caused by environment.Thus, the key of passivating technique application
It is passivator.Currently, Compound Heavy Metals soil is more and more, single passivator is difficult to reach the mark for repairing application
Standard plays the respective feature of passivator not of the same race then a variety of different type passivator can be used in combination, and enhancing passivation is repaired
Reactivation power achievees the purpose that the soil of repairing heavy metal pollution.Accordingly, it is considered to by organic composite modified with inorganic passivant progress
Passivator is prepared, one side organic matter can buffer possible pH variation brought by chemical inactivators, on the other hand, organic matter
Compound can be formed in conjunction with these inorganic passivants, play the role of preventing organic matter from degrading rapidly to a certain extent, because
And can overcome the disadvantages that because of risk brought by organic matter decomposition, achieve the effect that collaboration and complementation.
And existing soil passivator slow release effect is bad, in a short period of time just to the absorption fixed function of heavy metal
Saturation can be reached, PASSIVATION MECHANISM is single, and passivation effect is bad, therefore, invents a kind of slow-released soil heavy metal deactivator to soil
Earth renovation agent preparation technical field has positive meaning.
Summary of the invention
Present invention mainly solves the technical issues of, it is bad for current existing soil passivator slow release effect, very short
Time in saturation will be reached to the absorption fixed function of heavy metal, PASSIVATION MECHANISM is single, and the bad defect of passivation effect mentions
A kind of method for preparing slow-released soil heavy metal deactivator using pig bone is supplied.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A method of slow-released soil heavy metal deactivator, specific preparation step are prepared using pig bone are as follows:
Sieving powder and self-control sustained release adhesive are put into 15~20min of mixing in batch mixer, passivator slurry is obtained, will obtain
Passivator slurry be put into pelletizer and be granulated, obtaining the particle that partial size is 3~5mm is that slow-released soil heavy metal is blunt
Agent；
The preparation step of the sieving powder are as follows:
(1) it weighs fresh pig bone and is put into 20~30min of crushing in pulverizer, obtain pig bone crushed material, pig bone crushed material is filled
Enter to steam in glue pot, open steam valve and be passed through water vapour into pot, until steaming pressure in glue pot reaches 1.2~1.5MPa, steams glue
Handle 1~2h；
(2) glue after treatment to be steamed obtains steaming glue product, is passed through hot water into steaming glue pot and soaks completely until glue product will be steamed
Not yet, 3~4h of heat preservation heat treatment, after to be heated, is separated by filtration, respectively obtains filtrate and filter residue, filtrate is spare；
(3) filter residue is put into ball grinder, stainless steel ball-milling pearl is added, into ball grinder with the revolving speed ball of 150~200r/min
Mill handles 1~2h, discharges, sieves with 100 mesh sieve after ball milling, obtains sieving powder；
The preparation step of the self-control sustained release adhesive are as follows:
(1) spare filtrate is put into Rotary Evaporators, concentrated by rotary evaporation obtains concentrate, and gained concentrate and mussel are glued
It is put into blender after albumen mixing, mixture is obtained with 20~30min of revolving speed stir process of 200~300r/min；
(2) it fills this blend into reaction kettle, then catechol-oxydase is added into reaction kettle, seal reaction kettle, be in temperature
Revolving speed under conditions of 35~45 DEG C with 100~200r/min is stirred to react 3~5h, and self-control sustained release gluing is obtained after stirring
Agent.
It is described to be prepared in the specific preparation step of slow-released soil heavy metal deactivator using pig bone, be sieved powder and self-control
The mass ratio for being sustained adhesive is 2:1.
In the preparation step (1) of the sieving powder, the temperature for being passed through water vapour is 150~180 DEG C.
In the preparation step (2) of the sieving powder, the temperature for being passed through hot water is 95~100 DEG C.
In the preparation step (3) of the sieving powder, ball material mass ratio is 20:1 in ball grinder.
In the preparation step (1) of the self-control sustained release adhesive, the temperature of concentrated by rotary evaporation is preferably 60~70 DEG C, is rotated dense
The time of contracting is preferably 30~40min.
In the preparation step (1) of the self-control sustained release adhesive, the mass ratio of concentrate and sea-mussel mucin is 1:1.
In the preparation step (2) of the self-control sustained release adhesive, the additional amount of catechol-oxydase is mixture quality
10%。
The method have the benefit that:
(1) present invention is put into after being crushed and steams in glue pot, in the thermal energy and pressure of high-temperature vapor first using pig bone as raw material
Under the action of ossein contained by aggregate is decomposed, colloid is gradually oozed out out of osteocyte wall, and reusable heat water retting mentions
Gelatine and pig bone slag are obtained, then obtained pig bone glue will be extracted and sea-mussel mucin mixes, in the presence of biology enzyme instead
Sustained release adhesive should be made, finally, with self-control sustained release adhesive mixing granulation, slow-release soil will be can be prepared by after the grinding of pig bone slag
Earth heavy metal deactivator, the present invention extract obtain the bone rich in protein first using the pig bone rich in calcium hydroxy phosphate as raw material
Glue, the pig bone glue then extracted and the sea-mussel mucin hybrid reaction with DOPA structure, due to the neighbour in DOPA structure
Resorcinol groups can aoxidize under the action of catechol-oxydase, and part phenolic hydroxyl group is oxidized to adjacent benzoquinones, and adjacent benzoquinones
Can and gelatine albumen on amino generate Michael addition reaction occur between imines, or both, formed covalently cross-linked
Point ultimately forms macromolecule network polymers, and pig bone ground-slag end is bonded together, and is rich in di in pig bone ground-slag end
Calcium, calcium hydroxy phosphate can dissolve in the soil, release phosphoric acid hydrogen radical ion, then the metal in phosphoric acid hydrogen radical ion and soil
Ionization generates the extremely low metal phosphate of solubility, to achieve the purpose that fixation is heavy metal-passivated, and hydroxy-apatite
Calcium ion in stone can generate ion exchange with the heavy metal ion in soil, further increase heavy metal-passivated effect；
(2) importantly, the present invention is sustained in adhesive the amino containing metal ion-chelant, carboxylic in protein component
Base, and DOPA structure therein also has metal ion-chelant, and chelating absorption can occur with the metal ion in soil,
Passivation purpose is played, after passivator skin-material of the present invention and adhesive are to heavy metal adsorption in soil fixed saturation,
Gradually aging loses viscosity to adhesive, and the passivation layer meeting nature after the adsorption saturation of surface layer falls off layer by layer, exposes again internal new
Passivation layer play slow release effect to extend the action time of passivator, have broad application prospects.
Specific embodiment
It weighs fresh pig bone and is put into 20~30min of crushing in pulverizer, obtain pig bone crushed material, pig bone crushed material is filled
Enter to steam in glue pot, open steam valve and be passed through into pot and be preheated to 150~180 DEG C of water vapour, is reached until steaming pressure in glue pot
To 1.2~1.5MPa, steams glue and handle 1~2h；Glue after treatment to be steamed obtains steaming glue product, to steam in glue pot be passed through 95~
100 DEG C of hot water is totally submerged until glue product will be steamed, and heat preservation 3~4h of heat treatment after to be heated, is separated by filtration, point
Filtrate and filter residue are not obtained, and filter residue is spare；Obtained filtrate is put into Rotary Evaporators, the concentrated by rotary evaporation 30 at 60~70 DEG C
~40min, obtains concentrate, is in mass ratio to be put into blender after 1:1 is mixed by gained concentrate and sea-mussel mucin, with
20~30min of revolving speed stir process of 200~300r/min obtains mixture；It fills this blend into reaction kettle, then Xiang Fanying
The catechol-oxydase of mixture quality 10% is added in kettle, seals reaction kettle, with 100 under conditions of temperature is 35~45 DEG C
The revolving speed of~200r/min is stirred to react 3~5h, and self-control sustained release adhesive is obtained after stirring, spare；By spare filter residue
It is put into ball grinder, is that stainless steel ball-milling pearl is added into ball grinder by 20:1 by ball material mass ratio, with turning for 150~200r/min
Fast 1~2h of ball-milling treatment discharges after ball milling, sieves with 100 mesh sieve, and obtains sieving powder；It is in mass ratio 2:1 by above-mentioned sieving
Powder and spare self-control sustained release adhesive are put into 15~20min of mixing in batch mixer, obtain passivator slurry, blunt by what is obtained
Agent slurry, which is put into pelletizer, to be granulated, and obtaining the particle that partial size is 3~5mm is the passivation of slow-released soil heavy metal
Agent.
It steams glue processing: weighing fresh pig bone and be put into pulverizer and crush 20min, pig bone crushed material is obtained, by Os Sus domestica powder
It minces to be fitted into and steam in glue pot, open steam valve and be passed through into pot and be preheated to 150 DEG C of water vapour, reached until steaming pressure in glue pot
To 1.2MPa, steams glue and handle 1h；
The preparation of filter residue and filtrate:
Glue after treatment to be steamed obtains steaming glue product, complete up to that will steam glue product to the hot water for being passed through 95 DEG C in glue pot is steamed
Submergence, heat preservation heat treatment 3h, after to be heated, is separated by filtration, respectively obtains filtrate and filter residue, filter residue is spare；
The preparation of self-control sustained release adhesive:
(1) obtained filtrate is put into Rotary Evaporators, concentrated by rotary evaporation 30min, obtains concentrate at 60 DEG C, and gained is dense
Contracting liquid and sea-mussel mucin are to be put into blender after 1:1 is mixed in mass ratio, with the revolving speed stir process 20min of 200r/min
Obtain mixture；
(2) it fills this blend into reaction kettle, then the catechol-oxydase of mixture quality 10% is added into reaction kettle, sealing
Reaction kettle is stirred to react 3h under conditions of temperature is 35 DEG C with the revolving speed of 100r/min, and self-control sustained release is obtained after stirring
Adhesive；
The preparation of sieving powder:
Spare filter residue is put into ball grinder, is that stainless steel ball-milling pearl is added into ball grinder by 20:1 by ball material mass ratio, with
The revolving speed ball-milling treatment 1h of 150r/min discharges after ball milling, sieves with 100 mesh sieve, and obtains sieving powder；
The preparation of slow-released soil heavy metal deactivator:
Above-mentioned sieving powder and spare self-control are sustained adhesive for 2:1 in mass ratio and are put into mixing 15min in batch mixer, is obtained
To passivator slurry, obtained passivator slurry is put into pelletizer and is granulated, it is slow for obtaining the particle that partial size is 3mm
Release type soil heavy metal passivant.
It steams glue processing: weighing fresh pig bone and be put into pulverizer and crush 23min, pig bone crushed material is obtained, by Os Sus domestica powder
It minces to be fitted into and steam in glue pot, open steam valve and be passed through into pot and be preheated to 165 DEG C of water vapour, reached until steaming pressure in glue pot
To 1.3MPa, steams glue and handle 1h；
The preparation of filter residue and filtrate:
Glue after treatment to be steamed obtains steaming glue product, complete up to that will steam glue product to the hot water for being passed through 96 DEG C in glue pot is steamed
Submergence, heat preservation heat treatment 3h, after to be heated, is separated by filtration, respectively obtains filtrate and filter residue, filter residue is spare；
The preparation of self-control sustained release adhesive:
(1) obtained filtrate is put into Rotary Evaporators, concentrated by rotary evaporation 33min, obtains concentrate at 63 DEG C, and gained is dense
Contracting liquid and sea-mussel mucin are to be put into blender after 1:1 is mixed in mass ratio, with the revolving speed stir process 23min of 225r/min
Obtain mixture；
(2) it fills this blend into reaction kettle, then the catechol-oxydase of mixture quality 10% is added into reaction kettle, sealing
Reaction kettle is stirred to react 3h under conditions of temperature is 38 DEG C with the revolving speed of 130r/min, and self-control sustained release is obtained after stirring
Adhesive；
The preparation of sieving powder:
Spare filter residue is put into ball grinder, is that stainless steel ball-milling pearl is added into ball grinder by 20:1 by ball material mass ratio, with
The revolving speed ball-milling treatment 1h of 165r/min discharges after ball milling, sieves with 100 mesh sieve, and obtains sieving powder；
The preparation of slow-released soil heavy metal deactivator:
Above-mentioned sieving powder and spare self-control are sustained adhesive for 2:1 in mass ratio and are put into mixing 18min in batch mixer, is obtained
To passivator slurry, obtained passivator slurry is put into pelletizer and is granulated, it is slow for obtaining the particle that partial size is 3mm
Release type soil heavy metal passivant.
It steams glue processing: weighing fresh pig bone and be put into pulverizer and crush 28min, pig bone crushed material is obtained, by Os Sus domestica powder
It minces to be fitted into and steam in glue pot, open steam valve and be passed through into pot and be preheated to 175 DEG C of water vapour, reached until steaming pressure in glue pot
To 1.4MPa, steams glue and handle 2h；
The preparation of filter residue and filtrate:
Glue after treatment to be steamed obtains steaming glue product, complete up to that will steam glue product to the hot water for being passed through 98 DEG C in glue pot is steamed
Submergence, heat preservation heat treatment 4h, after to be heated, is separated by filtration, respectively obtains filtrate and filter residue, filter residue is spare；
The preparation of self-control sustained release adhesive:
(1) obtained filtrate is put into Rotary Evaporators, 30~40min of concentrated by rotary evaporation, obtains concentrate at 68 DEG C, by institute
It obtains concentrate and sea-mussel mucin is to be put into blender after 1:1 is mixed in mass ratio, with the revolving speed stir process of 280r/min
28min obtains mixture；
(2) it fills this blend into reaction kettle, then the catechol-oxydase of mixture quality 10% is added into reaction kettle, sealing
Reaction kettle is stirred to react 5h under conditions of temperature is 42 DEG C with the revolving speed of 180r/min, and self-control sustained release is obtained after stirring
Adhesive；
The preparation of sieving powder:
Spare filter residue is put into ball grinder, is that stainless steel ball-milling pearl is added into ball grinder by 20:1 by ball material mass ratio, with
The revolving speed ball-milling treatment 2h of 180r/min discharges after ball milling, sieves with 100 mesh sieve, and obtains sieving powder；
The preparation of slow-released soil heavy metal deactivator:
Above-mentioned sieving powder and spare self-control are sustained adhesive for 2:1 in mass ratio and are put into mixing 18min in batch mixer, is obtained
To passivator slurry, obtained passivator slurry is put into pelletizer and is granulated, it is slow for obtaining the particle that partial size is 4mm
Release type soil heavy metal passivant.
It steams glue processing: weighing fresh pig bone and be put into pulverizer and crush 30min, pig bone crushed material is obtained, by Os Sus domestica powder
It minces to be fitted into and steam in glue pot, open steam valve and be passed through into pot and be preheated to 180 DEG C of water vapour, reached until steaming pressure in glue pot
To 1.5MPa, steams glue and handle 2h；
The preparation of filter residue and filtrate:
Glue after treatment to be steamed obtains steaming glue product, complete up to that will steam glue product to the hot water for being passed through 100 DEG C in glue pot is steamed
Submergence, heat preservation heat treatment 4h, after to be heated, is separated by filtration, respectively obtains filtrate and filter residue, filter residue is spare；
The preparation of self-control sustained release adhesive:
(1) obtained filtrate is put into Rotary Evaporators, concentrated by rotary evaporation 40min, obtains concentrate at 70 DEG C, and gained is dense
Contracting liquid and sea-mussel mucin are to be put into blender after 1:1 is mixed in mass ratio, with the revolving speed stir process 30min of 300r/min
Obtain mixture；
(2) it fills this blend into reaction kettle, then the catechol-oxydase of mixture quality 10% is added into reaction kettle, sealing
Reaction kettle is stirred to react 5h under conditions of temperature is 45 DEG C with the revolving speed of 200r/min, and self-control sustained release is obtained after stirring
Adhesive；
The preparation of sieving powder:
Spare filter residue is put into ball grinder, is that stainless steel ball-milling pearl is added into ball grinder by 20:1 by ball material mass ratio, with
The revolving speed ball-milling treatment 2h of 200r/min discharges after ball milling, sieves with 100 mesh sieve, and obtains sieving powder；
The preparation of slow-released soil heavy metal deactivator:
Above-mentioned sieving powder and spare self-control are sustained adhesive for 2:1 in mass ratio and are put into mixing 20min in batch mixer, is obtained
To passivator slurry, obtained passivator slurry is put into pelletizer and is granulated, it is slow for obtaining the particle that partial size is 5mm
Release type soil heavy metal passivant.
Reference examples are using the heavy metal deactivator that Changzhou company produces as reference examples to passivator produced by the present invention
Performance detection is carried out with the passivator in reference examples, testing result is as shown in table 1:
1 performance test results of table
| Detection project | Example 1 | Example 2 | Example 3 | Example 4 | Reference examples |
| Zinc content in soil (mg/kg) after application passivator one month | 3.2 | 2.9 | 2.8 | 2.6 | 5.9 |
| Cadmium content (mg/kg) in soil after application passivator one month | 0.08 | 0.07 | 0.05 | 0.04 | 0.28 |
| Lead content (mg/kg) in soil after application passivator one month | 1.49 | 1.45 | 1.38 | 1.36 | 1.72 |
| Passivator effective acting time (moon) | 6 | 7 | 7 | 8 | 1 |
The slow-released soil heavy metal deactivator produced by the present invention it can be seen from the detection data in upper table, good passivation effect,
Effective acting time is long, and slow release effect is good, has broad application prospects.
Claims (8)
1. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone, it is characterised in that specific preparation step are as follows:
Sieving powder and self-control sustained release adhesive are put into 15~20min of mixing in batch mixer, passivator slurry is obtained, will obtain
Passivator slurry be put into pelletizer and be granulated, obtaining the particle that partial size is 3~5mm is that slow-released soil heavy metal is blunt
Agent；
The preparation step of the sieving powder are as follows:
(1) it weighs fresh pig bone and is put into 20~30min of crushing in pulverizer, obtain pig bone crushed material, pig bone crushed material is filled
Enter to steam in glue pot, open steam valve and be passed through water vapour into pot, until steaming pressure in glue pot reaches 1.2~1.5MPa, steams glue
Handle 1~2h；
(2) glue after treatment to be steamed obtains steaming glue product, is passed through hot water into steaming glue pot and soaks completely until glue product will be steamed
Not yet, 3~4h of heat preservation heat treatment, after to be heated, is separated by filtration, respectively obtains filtrate and filter residue, filtrate is spare；
(3) filter residue is put into ball grinder, stainless steel ball-milling pearl is added, into ball grinder with the revolving speed ball of 150~200r/min
Mill handles 1~2h, discharges, sieves with 100 mesh sieve after ball milling, obtains sieving powder；
The preparation step of the self-control sustained release adhesive are as follows:
(1) spare filtrate is put into Rotary Evaporators, concentrated by rotary evaporation obtains concentrate, and gained concentrate and mussel are glued
It is put into blender after albumen mixing, mixture is obtained with 20~30min of revolving speed stir process of 200~300r/min；
(2) it fills this blend into reaction kettle, then catechol-oxydase is added into reaction kettle, seal reaction kettle, be in temperature
Revolving speed under conditions of 35~45 DEG C with 100~200r/min is stirred to react 3~5h, and self-control sustained release gluing is obtained after stirring
Agent.
2. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: described to be prepared in the specific preparation step of slow-released soil heavy metal deactivator using pig bone, sieving powder and self-control are slow
The mass ratio for releasing adhesive is 2:1.
3. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: in the preparation step (1) of the sieving powder, the temperature for being passed through water vapour is 150~180 DEG C.
4. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: in the preparation step (2) of the sieving powder, the temperature for being passed through hot water is 95~100 DEG C.
5. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: in the preparation step (3) of the sieving powder, ball material mass ratio is 20:1 in ball grinder.
6. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: in the preparation step (1) of the self-control sustained release adhesive, the temperature of concentrated by rotary evaporation is preferably 60~70 DEG C, concentrated by rotary evaporation
Time be preferably 30~40min.
7. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: in the preparation step (1) of the self-control sustained release adhesive, the mass ratio of concentrate and sea-mussel mucin is 1:1.
8. a kind of method for preparing slow-released soil heavy metal deactivator using pig bone according to claim 1, feature
Be: in the preparation step (2) of the self-control sustained release adhesive, the additional amount of catechol-oxydase is the 10% of mixture quality.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303898A (en) * | 2020-03-13 | 2020-06-19 | 江苏和合环保集团有限公司 | Preparation method of heavy metal contaminated soil passivator |
| CN111394101A (en) * | 2020-03-13 | 2020-07-10 | 江苏和合环保集团有限公司 | Preparation method of biomass long-acting heavy metal passivator |
| CN115448331A (en) * | 2022-09-21 | 2022-12-09 | 中盐常州化工股份有限公司 | Additive for reducing calcium and magnesium ions in primary brine and preparation method thereof |
-
2019
- 2019-04-30 CN CN201910362307.9A patent/CN110041943A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111303898A (en) * | 2020-03-13 | 2020-06-19 | 江苏和合环保集团有限公司 | Preparation method of heavy metal contaminated soil passivator |
| CN111394101A (en) * | 2020-03-13 | 2020-07-10 | 江苏和合环保集团有限公司 | Preparation method of biomass long-acting heavy metal passivator |
| CN111394101B (en) * | 2020-03-13 | 2021-04-27 | 江苏和合环保集团有限公司 | Preparation method of biomass long-acting heavy metal passivator |
| CN115448331A (en) * | 2022-09-21 | 2022-12-09 | 中盐常州化工股份有限公司 | Additive for reducing calcium and magnesium ions in primary brine and preparation method thereof |
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Application publication date: 20190723 |