CN108212111A - A kind of heavy metal-polluted soil absorption pulvis and its production method - Google Patents
A kind of heavy metal-polluted soil absorption pulvis and its production method Download PDFInfo
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- CN108212111A CN108212111A CN201810119903.XA CN201810119903A CN108212111A CN 108212111 A CN108212111 A CN 108212111A CN 201810119903 A CN201810119903 A CN 201810119903A CN 108212111 A CN108212111 A CN 108212111A
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- heavy metal
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- pulvis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28016—Particle form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J45/00—Ion-exchange in which a complex or a chelate is formed; Use of material as complex or chelate forming ion-exchangers; Treatment of material for improving the complex or chelate forming ion-exchange properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09C—RECLAMATION OF CONTAMINATED SOIL
- B09C1/00—Reclamation of contaminated soil
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- 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
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/002—Fertilisers made from animal corpses, or parts thereof from fish or from fish-wastes
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pest Control & Pesticides (AREA)
- Analytical Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Particularly, the present invention relates to a kind of heavy metal-polluted soils to adsorb pulvis.Heavy metal-polluted soil absorption pulvis is formed by fish protein peptide and seaweed paste through complex reaction, and the fish protein peptide is embedded in the macromolecular of seaweed paste, and fish protein peptide carries negative electrical charge；After seaweed paste water swelling is into multi-pore structure, heavy metal ion, which enters under the attraction of negative electrical charge in hole, forms water-insoluble organic macromolecule and by the macromolecular embedding of seaweed paste；The fish protein peptide and the weight ratio of seaweed paste are 1:1.5‑4.Production method carries out complex reaction with seaweed paste using the fish protein peptide of enzymolysis and forms.When the absorption pulvis carries out soil treatment, it can make inorganic arsenic and inorganic mercury in soil that can reduce by more than 50%, inorganic cadmium, inorganic lead and inorganic chromium also reduce by 3% 5% respectively, it adsorbs the ability of heavy metal and use cost ratio other materials, such as pig manure charcoal, attapulgite, biological straw charcoal have apparent advantage.
Description
Technical field
Particularly, the present invention relates to a kind of heavy metal-polluted soils to adsorb pulvis, and and then a kind of life of the absorption pulvis of offer
Production method.
Background technology
Heavy metal is harmful element, is mostly existed in nature with compound state, and excessive heavy metal can cause soil
Earth pollutes, and is passed to by crops absorption artificial into slow poisoning.
It is mainly the following at present by the soil of heavy metal pollution in administering method：First, engineering control method is as shoveled
The new soil of pollution is added in except its table soil or on contaminated land；2nd, biological treating method, such as earthworm or crops absorb soil；
3rd, chemical harnessing method；4th, biological husbantry administering method.Above-mentioned administering method is only applicable in small area improvement, for large area dirt
The improvement of soil is contaminated, is invested greatly using Chinese fir restorative procedure, period length, man power and material's input are big, and have the wind of repeated contamination
Danger, therefore, it is difficult to large area implementations.
Soil in-situ passivation recovery technique is a kind of popularization for being suitable for large area developed in recent years and utilizes
Heavy Metal Pollution Control method.It is a kind of based on addition external source renovation agent, and serial reaction occurs with heavy metal, changes heavy metal
Occurrence patterns in the soil, to reduce the technology of its validity in the soil.At present, common heavy metal passivation renovation agent master
To include lime substance, clay mineral, organic materials, charcoal etc..
Invention content
The purpose of the present invention is extract a kind of electrically charged colloid mixture using abundant marine low-value fish and marine algae resource
Material, using its with charge in aminoacid small peptide to the adsorption function of metal ion, by the heavy metal of inorganic salts available state from
Then son is included and generates water-insoluble organic macromolecule inclusion among mushy colloid upon inflation by ionic adsorption chelant
Body, so as to achieve the effect that remove inorganic salts available heavy metal.
To realize the above-mentioned technical purpose, the technical solution adopted by the present invention is：A kind of heavy metal-polluted soil adsorbs pulvis, special
Sign is：It is formed by fish protein peptide and seaweed paste through complex reaction, and the fish protein peptide is embedded in the macromolecular of seaweed paste
In, and fish protein peptide carries negative electrical charge；After seaweed paste water swelling is into multi-pore structure, heavy metal ion is in the suction of negative electrical charge
Draw lower into forming water-insoluble organic macromolecule and by the macromolecular embedding of seaweed paste in hole；The fish protein peptide and seaweed
The weight ratio of cream is 1:1.5-4.
A kind of production method of heavy metal-polluted soil absorption pulvis, it is characterised in that：The pH value that enzyme hydrolysis is obtained is 5.5-
6.0th, the Fish protein liquid of amino acid and its small peptide with negative electrical charge group and the seaweed that pH value is 6.8-7.2, a concentration of 50-70%
Cream is according to 1:The weight proportion of 1.5-4 carries out complex reaction in launching into reaction kettle, the pH value control wherein in reaction kettle is
7.5-8.0, obtains complex compound, and complex compound handles to obtain the pulvis that can adsorb heavy metal through low-temperature vacuum drying.
It is further, described that a concentration of 5%-10% sodium carbonate is added into reaction kettle when reaction kettle carries out complex reaction is molten
Liquid adjusts the pH value in reaction kettle using sodium carbonate liquor.
Further, during the complex reaction of progress in a kettle, the pressure in reaction kettle is 1-1.2 atmospheric pressure,
Reaction temperature be 55 ° -75 °, reaction time 3-5 hour, at the same during the reaction incessantly to the material in reaction kettle into
Row stirring, mixing speed are 600-800 revs/min.
Further, during the complex reaction of progress in a kettle, in the reaction starting stage, electric discharge is equipped in reaction kettle
Electrode, the discharge electrode carry out electrion, discharge time 10-30 minute to material in reaction kettle.
Further, the enzyme hydrolysis of the Fish protein liquid uses the addition complex enzyme in the fish raw material of crushing to be digested,
55-60 DEG C of water temperature of enzymolysis, enzymolysis time obtain enzymolysis liquid for 4-8 hours, and for enzymolysis liquid through centrifuging remove slag degreasing and water-insoluble, low temperature is true
Sky is concentrated to give the Fish protein liquid that pH value carries negative electrical charge group for 5.5-6.0, amino acid and its small peptide.
Further, the seaweed paste desalts using seaweed as raw material by clear water rinsing, the stone of a concentration of 0.1%-0.3%
Buck impregnates 2-4 hours, and then clear water flushing, is crushed to 200-400 mesh, is obtained through dehydration.
Beneficial effects of the present invention are：Using Fish protein and the colloid substances of seaweed extraction, it is complexed into heavy metal-polluted soil and inhales
Attached pulvis can exchange generation chelating body with the inorganic salts available heavy metal in soil, reach heavy metal in huge legendary turtle curing soil
Effect, the difference with common soil conditioner is, which, which meets water, can form negatively charged, porous series colloids
Macromolecular, while absorption chelant and clathration are had both, while itself is also high-efficiency organic fertilizer, provide having for abundance for crop
The nutrients such as machine matter and nitrogen, phosphorus, potassium.Through experiment：It can be reduced with the inorganic arsenic in the soil of this material processing after five minutes and inorganic mercury
More than 50%, inorganic cadmium, inorganic lead and inorganic chromium also reduce 3%-5% respectively, and the ability and use cost of absorption heavy metal are than it
His material, such as pig manure charcoal, attapulgite, biological straw charcoal have apparent advantage.
Specific embodiment
Pulvis is adsorbed to heavy metal-polluted soil provided by the invention with reference to embodiment and its production method is described in detail.
The specific production method of heavy metal-polluted soil absorption pulvis is as follows：
1. the selection of raw material.It is characterized in that：Selected raw material catches aquatic products processing leftover bits and pieces, institute for marine low-value fish or sea
Accounting example 20-40%；The seaweed such as opotism, kelp, sargassum and its processing fent proportion are 60-80%.
2. process of manufacture.It is characterized in that：
2.1. the preparation of Fish protein small peptide.Using marine low-value fish as raw material, through over cleaning, crushing, through complex enzyme（Papain
Enzyme：Animal protease=1:1）Papain can be selected in enzyme hydrolysis, complex enzyme：Animal protease is according to 1:1 ratio group
Into enzymatic hydrolysis condition：55-60 ° of temperature, hydrolysis time 4-8 hours, obtain Fish protein small peptide, are centrifuged slag and fat and water
Then insoluble matter is concentrated by cryogenic vacuum（60-80 ° of temperature, vacuum degree 4000Pa）, obtain the fish egg of a concentration of 50%-60%
White concentrate, the pH value of the Fish protein liquid is between 5.5-6.0 after hydrolysis so that amino acid and its small peptide carry negative electrical charge base
Group, thus has the function of Cation adsorption.
2.2. the preparation of seaweed macromolecular colloidal materials.With the seaweed such as opotism, kelp, sargassum and its leftover bits and pieces of processing
Expect for raw material, desalt by clear water rinsing, the limewash of 0.1%-0.3% impregnate 2-4 hours with remove the sclerderm substance in seaweed,
Then clear water rinses, is crushed to 200-400 mesh, through dehydration, obtains the algin pasty masses of 50-70% concentration, control should
The pH of algin is the neutral state of 6.8-7.2.
2.3. the compound and production process of heavy metal adsorption pulvis.By the calculating of two feed concentrations, after concentration
Fish protein liquid and seaweed paste are according to 1:1.5-4（The ratio of dry matter in product）It puts into respectively and ammonia is carried out in same reaction kettle
Small-molecular peptides are embedded and are suspended in algin macromolecular by the complex reaction of base acid small peptide and seaweed macromolecular, formed and stablized
Complex compound.Wherein, the pressure of reaction kettle controls the positive pressure in 1-1.2 atmospheric pressure, to form extrusion effect, Fish protein is small
Molecular peptide is expressed among the hole of polymeric hydantoin phycocolloid, is allowed to that complex reaction occurs as early as possible, so that Fish protein small molecule
Peptide " extension " is on seaweed colloid.Reaction kettle uses chuck heating to maintain complex reaction temperature as 55 ° -75 °, reaction time 3-5
Hour, it keeps continuously stirring, mixing speed is 600-800 revs/min.
2.4 handle the Fish protein after the completion of reaction and algin complex compound through low-temperature vacuum drying, and technological parameter is object
65 ° of material temperature degree, vacuum degree 4000Pa obtain to adsorb the powder product of heavy metal.
Wherein, when carrying out complex reaction in a kettle, a certain number of a concentration of 5%-10% can be put into reaction kettle
The pH value of mixed liquor is modulated to 7.5-8.0 by sodium carbonate liquor so that complex reaction carries out under weak base state, adjusts pH
The purpose of value is the cation replaced with the sodium ion in sodium carbonate in algin, to protect the negative electrical charge base in Fish protein small peptide
Group is not destroyed.
Since the absorption pulvis mainly adsorbs the heavy metal ion in soil using the adsorption function of charge, to increase
Add the negative electricity capacity value in Fish protein small peptide, carrying out the complex reaction starting stage, electrion can be set in a kettle
Device discharges to the material in reaction kettle using the discharge electrode of high-pressure discharging device, so as to make fish protein peptide and seaweed
Cream is full of negative electrical charge, and discharge time control is 10-30 minutes.When carrying out complex reaction, the fish protein peptide packet with negative electrical charge
Close inside the colloid of seaweed paste, and the negative electrical charge on seaweed paste surface in complex reaction and subsequent processing step by part
With fall.When using the pulvis, after seaweed paste water-swellable forms mushy colloid macromolecules, the negative of protein peptides institute band is utilized
Charge adsorbs metal ion, and metal ion is drawn in inside colloid macromolecules.The energy by the way of high pressure active discharge
When enough dramatically increasing adsorption effect of the absorption pulvis to metal ion, but increasing electric discharge device in a kettle, it should be noted that anti-
The insulating properties of kettle is answered, generally requires and is carried out using with ceramic-lined reaction kettle.
The fish egg of negative electrical charge group is carried by amino acid and its small peptide by the heavy metal adsorption pulvis that the above method obtains
White peptide and algin macromolecular composition, weight proportion 1:1.5-4.Fish protein peptide is embedded in the macromolecular of seaweed paste, and fish
Protein peptides carry negative electrical charge；After seaweed paste water swelling is into multi-pore structure, heavy metal ion under the attraction of negative electrical charge into
Enter to be formed water-insoluble organic macromolecule in hole and by the macromolecular embedding of seaweed paste.
The application method of the absorption pulvis is：The heavy metal adsorption pulvis is watered ratio 1:1000, fully impregnate 10-15
Hour so that seaweed colloid water swelling releases the electrically charged Fish protein small peptide end hung into multi-pore structure,
Heavy metal ion under the lower absorption inorganic salts available state form of positive and negative charge ionic adsorption principle effect, forms amino acid chelate salt
Class substance, such amino acid chelate object, which is entered in the hole of seaweed colloid, is included into water-insoluble organic macromolecule, so as to
The content of beary metal of inorganic salts available state in soil is reduced, the ratio for reducing the transfer of heavy metal and being absorbed by crops reaches drop
The purpose of low heavy metal in soil.
Test result is as follows for the products application of the absorption pulvis.
In the experiment of Yuzhou of Henan soil, handled 5 minutes through heavy metal-polluted soil absorption pulvis for examination soil（It will absorption
Pulvis is configured according to application method）, then uniformly mix in soil, testing result see the table below（In Shandong Province's product quality detection
Heart testing result）：
Explanation：1#, Yuzhou of Henan soil（As former state）；2#, Yuzhou of Henan soil（Through the absorption of heavy metal adsorption pulvis after five minutes）
Test shows to handle soil using the absorption pulvis, can make inorganic arsenic and inorganic mercury in soil that can reduce by 50%
More than, inorganic cadmium, inorganic lead and inorganic chromium also reduce 3%-5% respectively, and the ability and use cost of absorption heavy metal are than other
Material, such as pig manure charcoal, attapulgite, biological straw charcoal have apparent advantage.
It is finally bright to be：Although only providing parameter area in the present embodiment, specific parameter is not limited, such as
Specific weight ratio, enzymolysis and the design parameter of complex reaction, but the method step that those skilled in the art provide in the embodiment
Determining specific parameter is fully able to so as to fulfill the effect reached required by the present invention by experiment under rapid enlightenment.The application
Inventive concept be to provide a kind of principle for the raw material composition and absorption for forming heavy metal-polluted soil absorption pulvis, and for institute's structure
Into raw material a kind of production method is provided.Above example is only to illustrate the process technology scheme being not intended to limit the present invention, but
As it should be appreciated by those skilled in the art：It is still possible to modify or equivalently replace the present invention, without departing from this
Any modification of the scope of invention or localized variation, are intended to be within the scope of the claims of the invention.
Claims (7)
1. a kind of heavy metal-polluted soil adsorbs pulvis, it is characterised in that：It is formed by fish protein peptide and seaweed paste through complex reaction, institute
The fish protein peptide stated is embedded in the macromolecular of seaweed paste, and fish protein peptide carries negative electrical charge；When seaweed paste water swelling is into more
After pore structure, heavy metal ion, which enters under the attraction of negative electrical charge in hole, forms water-insoluble organic macromolecule and by seaweed
The macromolecular embedding of cream；The fish protein peptide and the weight ratio of seaweed paste are 1:1.5-4.
2. a kind of production method of the heavy metal-polluted soil absorption pulvis described in claim, it is characterised in that：What enzyme hydrolysis obtained
PH value is 5.5-6.0, amino acid and its small peptide Fish protein liquid and pH value with negative electrical charge group are 6.8-7.2, a concentration of 50-
70% seaweed paste is according to 1:The weight proportion of 1.5-4 carries out complex reaction, the wherein pH value in reaction kettle in launching into reaction kettle
It controls as 7.5-8.0, obtains complex compound, complex compound handles to obtain the pulvis that can adsorb heavy metal through low-temperature vacuum drying.
3. a kind of production method of heavy metal-polluted soil absorption pulvis as claimed in claim 2, it is characterised in that：It is described to react
Kettle carries out adding a concentration of 5%-10% sodium carbonate liquors into reaction kettle during complex reaction, and reaction kettle is adjusted using sodium carbonate liquor
In pH value.
4. a kind of production method of heavy metal-polluted soil absorption pulvis as claimed in claim 2 or claim 3, it is characterised in that：It is described
When complex reaction is carried out in reaction kettle, the pressure in reaction kettle is 1-1.2 atmospheric pressure, and reaction temperature is 55 ° -75 °, during reaction
Between 3-5 hours, while the material in reaction kettle is stirred incessantly during the reaction, mixing speed 600-800
Rev/min.
5. a kind of production method of heavy metal-polluted soil absorption pulvis as claimed in claim 2, it is characterised in that：It is described to react
When complex reaction is carried out in kettle, in the reaction starting stage, discharge electrode is equipped in reaction kettle, the discharge electrode is to object in reaction kettle
Material carries out electrion, discharge time 10-30 minute.
6. a kind of production method of heavy metal-polluted soil absorption pulvis as claimed in claim 2, it is characterised in that：The Fish protein
The enzyme hydrolysis of liquid uses the addition complex enzyme in the fish raw material of crushing to be digested, 55-60 DEG C of water temperature of enzymolysis, enzymolysis time 4-8
Hour obtains enzymolysis liquid, and enzymolysis liquid is concentrated to give pH value as 5.5-6.0, ammonia through centrifuging remove slag degreasing and water-insoluble, cryogenic vacuum
Base acid and its small peptide carry the Fish protein liquid of negative electrical charge group.
7. a kind of production method of heavy metal-polluted soil absorption pulvis as claimed in claim 2, it is characterised in that：The seaweed paste
It using seaweed as raw material, desalts by clear water rinsing, the limewash of a concentration of 0.1%-0.3% impregnates 2-4 hours, then clear water punching
It washes, is crushed to 200-400 mesh, obtained through dehydration.
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| CN201810119903.XA CN108212111B (en) | 2018-02-07 | 2018-02-07 | A kind of heavy metal-polluted soil absorption pulvis and its production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408616A (en) * | 2020-04-01 | 2020-07-14 | 温州大学 | Method for extracting cadmium from polluted soil by using sargassum fusiforme or sargassum thunbergii |
| CN112322303A (en) * | 2020-11-03 | 2021-02-05 | 宁波吉丰生物科技发展有限公司 | Organic biological cadmium-reducing soil conditioner containing fish protein and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224412A (en) * | 2007-10-15 | 2008-07-23 | 北京航空航天大学 | Biologic absorbent for adsorbing heavy metal and preparing method thereof |
| CN103667407A (en) * | 2012-09-07 | 2014-03-26 | 天津拓飞生物科技有限公司 | Polypeptide-zinc metal complex as well as preparation method and application thereof |
| CN104056849A (en) * | 2014-04-28 | 2014-09-24 | 杭州师范大学 | Method for adsorbing and treating heavy metal cadmium in soil |
| CN104226273A (en) * | 2014-04-28 | 2014-12-24 | 杭州师范大学 | Microspheres for adsorbing heavy-metal cadmium in soil |
| CN107162690A (en) * | 2017-06-06 | 2017-09-15 | 威海温喜生物科技有限公司 | A kind of preparation method of the tomato special fertilizer containing Fish protein and algal polysaccharides |
-
2018
- 2018-02-07 CN CN201810119903.XA patent/CN108212111B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101224412A (en) * | 2007-10-15 | 2008-07-23 | 北京航空航天大学 | Biologic absorbent for adsorbing heavy metal and preparing method thereof |
| CN103667407A (en) * | 2012-09-07 | 2014-03-26 | 天津拓飞生物科技有限公司 | Polypeptide-zinc metal complex as well as preparation method and application thereof |
| CN104056849A (en) * | 2014-04-28 | 2014-09-24 | 杭州师范大学 | Method for adsorbing and treating heavy metal cadmium in soil |
| CN104226273A (en) * | 2014-04-28 | 2014-12-24 | 杭州师范大学 | Microspheres for adsorbing heavy-metal cadmium in soil |
| CN107162690A (en) * | 2017-06-06 | 2017-09-15 | 威海温喜生物科技有限公司 | A kind of preparation method of the tomato special fertilizer containing Fish protein and algal polysaccharides |
Non-Patent Citations (1)
| Title |
|---|
| 高琪: ""蛋白肽对污染土壤镉形态的调控效应"", 《中国优秀硕士学位论文全文数据库工程科技I辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408616A (en) * | 2020-04-01 | 2020-07-14 | 温州大学 | Method for extracting cadmium from polluted soil by using sargassum fusiforme or sargassum thunbergii |
| CN112322303A (en) * | 2020-11-03 | 2021-02-05 | 宁波吉丰生物科技发展有限公司 | Organic biological cadmium-reducing soil conditioner containing fish protein and preparation method thereof |
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| Publication number | Publication date |
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| CN108212111B (en) | 2019-09-20 |
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