CN108929697A - For the passivator of heavy metal pollution agricultural land soil reparation and its preparation and application - Google Patents
For the passivator of heavy metal pollution agricultural land soil reparation and its preparation and application Download PDFInfo
- Publication number
- CN108929697A CN108929697A CN201810807327.8A CN201810807327A CN108929697A CN 108929697 A CN108929697 A CN 108929697A CN 201810807327 A CN201810807327 A CN 201810807327A CN 108929697 A CN108929697 A CN 108929697A
- Authority
- CN
- China
- Prior art keywords
- passivator
- heavy metal
- soil
- agricultural land
- metal pollution
- 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.)
- Pending
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
-
- 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
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D1/00—Fertilisers containing potassium
-
- 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
-
- 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
Abstract
The present invention relates to for heavy metal pollution agricultural land soil reparation passivator and its preparation and application, passivator is with the mass percentage composition of charcoal 60%-70%, plant ash 20%-30% and sepiolite powder 10%-20%；Plant ash and sepiolite powder are sieved by passivator by firing stalk black wood charcoal, weigh stalk black wood charcoal, plant ash and the sepiolite powder of certain mass proportion, are made after mixing；In, clears up area's earth's surface is repaired, passivator is uniformly spread fertilizer over the fields to soil surface, plowed soils ensures that passivator is sufficiently mixed with heavy metal pollution agricultural land soil.Passivator of the invention has larger adsorptivity, change heavy metals formation in soil, the content of each common mating reaction decline low heavy metal available state of ingredient, increases soil fertility, improves crop yield to a certain extent, improve the physicochemical property of agricultural land soil, with environment friendly, in-situ immobilization does not influence cultivation and agricultural production, raw material are easy to get, it is from a wealth of sources, it has a extensive future.
Description
Technical field
The present invention relates to soil improvement and environmental protection technical field, in particular to a kind of to reduce heavy metal-polluted soil effective
The content of state, improve soil physico-chemical property and increase soil fertility for the reparation of heavy metal pollution agricultural land soil passivator and
It is prepared and application.
Background technique
Soil is the basis of all rural activities, and pollution level directly affects the development of agricultural and the quality peace of agricultural product
Entirely.With the continuous propulsion of industrialization and urbanization, various harmful substances can pass through atmospheric sedimentation, industrial discharge and agriculture chemical
The approach such as application enter agricultural land soil, seriously affect agricultural land soil environmental quality.
Currently, countries in the world soil, there are different degrees of pollution, Hg about 1.5 × 10 is discharged in the whole world every year on average4t、
About 3,400,000 about 5,000,000 about 15,000,000 about 1,000,000 t of t, Ni of t, Mn of t, Pb of Cu.In Europe, had by the farmland of heavy metal pollution hundreds of
Ten thousand hm2；Japan by the pollutions such as Cd, Cu, As farmland area be 7224hm2；What current China was polluted by Cd, Hg, As, Cr, Pb
Cultivated area about 2000 × 104hm2, the grain lost every year by heavy metal pollution about 1000 × 104T, contaminated grain is up to
1200×104T, economic loss are at least up to 20,000,000,000 yuan.The agricultural product quality and safety event constantly generated in recent years, such as cadmium rice
Event also improves country to the attention degree of agricultural product quality and safety and heavy metal pollution of soil problem.
Currently, the reparation of farmland soil heavy metals pollution is attached great importance in countries in the world, have investigated including deep ploughing, visitor
The methods of soil, elution, environment conditioning, antagonism, biological prosthetic, redox and chemical passivation.However, existing method has one
Fixed limitation does not remove removing heavy metals really for example, heavy metal pollution is only dispersed in soil by deep ploughing；Soil improvement by importing soil from other places
Project amount is huge, and cost is high, thereby increases and it is possible to can generate secondary pollution；The chemical agent of oxidation-reduction method addition may be to soil
Generate secondary pollution.
Mixed economy and effect consider that the restorative procedure of the more farmland soil heavy metals pollution of mainstream is passivation at present
Method.Be passivated medicament kind it is various, common medicament be inorganic passivant and organic passivation agent, inorganic passivant be generally zeolite,
The substances such as lime, phosphate, clay mineral and plant slag, organic passivation agent are generally the objects such as green manure, humic acid and charcoal
Matter, principle are to change the form of heavy metal, bio-available Zn concentration are reduced, to reduce its influence to agricultural product.
Chinese patent CN106010562A discloses a kind of using iron powder, sepiolite, lime, chicken manure and chitosan as raw material
Soil heavy metal passivant；Chinese patent CN103589435A discloses a kind of using tea waste and humic acid potassium as the soil of raw material
Earth heavy metals regulation agent；Chinese patent CN102174325A is disclosed a kind of is using plant slag, sepiolite powder and quick lime
The farmland soil heavy metals passivator of raw material；Chinese patent CN104031651A discloses one kind with flyash, nanometer iron powder, boiling
Stone, medical stone, calcium magnesium phosphate, hydroxypropyl modified SiO2/ chitosan nano particle and hole nodular fibrous element are the soil of raw material
Heavy metal deactivator；Chinese patent CN101722178A, which is disclosed, a kind of using cultivation, earthing and broadcasts sowing moss as main process
The method of vegetation united repairing heavy metal.Although above-mentioned modifying agent or restorative procedure have respectively in terms of heavy-metal contaminated soil reparation
From advantage, but still have the following problems:
(1) part modifying agent is such as applied in the lower soil of content of organics, based on inorganic component it is possible that hardened
Situation；
(2) part modifying agent contains heavy metal, will cause the secondary pollution of soil；
(3) modifying agent material composition is more, and preparation process is more complex, improves cost.
Therefore, complicated, the high cost, broken for preparation process existing for current existing heavy metals in farmland pollution remediation technology
The problems such as bad soil, proposes a kind of relatively simple efficient repair mode, this will generate extremely important meaning to actual production
Justice.
Summary of the invention
In order to solve the problems in the existing technology, the present invention provide a kind of optimization for heavy metal pollution farmland soil
The passivator of earth reparation and its preparation and application have many advantages, such as that good passivation effect, application are simple, environmentally friendly.
The technical scheme adopted by the invention is that a kind of passivator for heavy metal pollution agricultural land soil reparation, described
Passivator is made of the raw material of following mass percent: charcoal 60%-70%, plant ash 20%-30% and sepiolite powder 10%-
20%。
Preferably, the charcoal is high-carbon, high nitrogen made of being fired as corn stover and the stalk containing functional group is black
Charcoal.
Preferably, the preparation method comprises the following steps:
Step 1.1: firing stalk black wood charcoal；
Step 1.2: plant ash and sepiolite powder are sieved；
Step 1.3: weighing stalk black wood charcoal, plant ash and the sepiolite powder of certain mass proportion；
Step 1.4: passivator is made in mixing.
Preferably, the stalk black wood charcoal firing the following steps are included:
Step 2.1: by corn stover drying, crushing, obtain maize straw powder；
Step 2.2: being uniformly mixed, be put into stainless cylinder of steel after maize straw powder is sieved；
Step 2.3: the stainless cylinder of steel equipped with maize straw powder being placed in Muffle furnace, with 500 DEG C of pyrolysis 2h；
Step 2.4: the semi-finished product after pyrolysis being sieved, stalk black wood charcoal is made.
Preferably, in the step 2.2, maize straw powder is uniformly mixed after crossing the sieve of 0.2mm.
Preferably, in the step 2.4, the semi-finished product after pyrolysis cross the sieve of 0.2mm, and stalk black wood charcoal is made.
Preferably, in the step 1.2, plant ash and the sepiolite powder sieve of mistake 0.5mm.
A kind of application using the passivator for the reparation of heavy metal pollution agricultural land soil, the application include with
Lower step:
Step 3.1: clearing up area's earth's surface is repaired；
Step 3.2: the passivator is uniformly spread fertilizer over the fields to soil surface；
Step 3.3: utilizing rotary cultivator plowed soils at least 2 times, ploughed depth 20cm, it is ensured that passivator and heavy metal pollution agriculture
Field soil is sufficiently mixed.
Preferably, in the step 3.2, the additive amount of passivator for institute's plowed soils quality 1%-3%.
Preferably, in the step 3.2, when spreading fertilizer over the fields passivator, wind-force is less than 3 grades.
In the present invention, charcoal is a kind of mixture for impure carbon that organism imperfect combustion generates, it contains 60%
Above carbon, charcoal have biochemistry and thermal stability because of the height aromatization of carbon component.Currently used charcoal
Refer to the general designation of the solid product of various crop materials and house refuse under anaerobic after high temperature pyrolysis, predominantly fiber
Element, carbonyl, derivative, furans, pyrans and the anhydrousugar of acid and acid, phenol, alkane and olefinic hydro carbons derivative etc. at
The mixture divided, carbon fixation and emission reduction aspect are used widely.
In the present invention, plant ash is the residue after burning plants, mineral element contained by all plants, in plant ash almost
All contain.
In the present invention, sepiolite is a kind of hydrous magnesium silicate clay mineral of chain structure, and shrinking percentage is low, and plasticity is good,
Specific surface is big, strong adsorption, has the performances such as decoloration, heat-insulated, insulation, anticorrosive, anti-radiation and thermostabilization.
The present invention provides a kind of optimizations for the passivator of heavy metal pollution agricultural land soil reparation and its preparation and to answer
With, compared with the prior art, the advantages of the present invention are as follows:
(1) passivator of the invention includes the plant ash and 10%-20% that quality proportioning is the stalk black wood charcoal of 60%-70%, 20%-30%
Sepiolite powder, wherein stalk black wood charcoal have a large amount of microcellular structures, sepiolite have biggish specific surface area, make this modifying agent
With larger adsorptivity；The effects of stalk black wood charcoal contains great amount of hydroxy group, carboxyl, ester group isoreactivity functional group, can pass through chelating drops
Low heavy metal bio-available Zn concentration；And the effective component of plant ash is carbonate, thus it is possible to vary heavy metals formation in soil reduces a huge sum of money
The content for belonging to available state reduces heavy metal bio-available Zn concentration in agricultural land soil under each common mating reaction of ingredient；
(2) soil fertility can be improved in passivator of the invention, provides sufficient carbon and nitrogen sources, improves crop to a certain extent
Yield, and the physics of agricultural land soil, chemical property can be improved, it not will cause soil hardening, there is environment friendly, it is especially suitable
Agricultural land soil for light moderate heavy metal pollution；
(3) method of passivator repairing polluted soil of the invention belongs to in-situ immobilization, does not influence cultivation and agricultural production, raw material
It is easy to get, it is from a wealth of sources, it has broad application prospects.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, it should be noted that the present invention is not limited to
Lower embodiment, acceptable there are many deformations.Those skilled in the art can directly be exported from present disclosure or
All deformations associated, are considered as protection scope of the present invention.
Embodiment 1
The pollution plot near Fuyang area of Hangzhou, Zhejiang province city chemical plant, 400 square meter of test area are chosen, soil pH value is
6.97,1.2 mg/kg of soil available Cd concentration, 137 mg/kg of Available Lead, 43.1 mg/kg of available state arsenic, available state
316.4 mg/kg of copper.
With quality proportioning be 60% stalk black wood charcoal, 20% plant ash and 20% sepiolite powder under above-mentioned preparation method,
Compounding is the passivator for repairing heavy metal pollution agricultural land soil, is uniformly spread with 3% mass ratio to soil surface, utilizes rotation
It ploughs machine plowed soils at least 2 times, ploughed depth is 20 cm, is sufficiently mixed above-mentioned passivator with soil, plants after pouring water 3 days
Rice.
The bio-available Zn concentration variation of 1 plot heavy metal in soil of embodiment and deactivation rate are shown in Table 1 during test.
Table 1: the variation of 1 plot heavy metal in soil bio-available Zn concentration of embodiment and deactivation rate
| Heavy metal | Cd | Pb | As | Cu |
| Before reparation (mg/kg) | 1.28 | 137 | 43.1 | 316.4 |
| After reparation (mg/kg) | 0.44 | 52.9 | 30.2 | 197.2 |
| Deactivation rate (%) | 65.6 | 61.4 | 30.0 | 37.7 |
Embodiment 2
Choose the pollution plot near Fuyang area of Hangzhou, Zhejiang province city chemical plant, 400 square meter of test area, soil property pH value
It is 6.90,1.2 mg/kg of soil available Cd concentration, 128.5 mg/kg of Available Lead, 39.5 mg/kg of available state arsenic have
Imitate 320.4 mg/kg of state copper.
With quality proportioning be 60% stalk black wood charcoal, 25% plant ash and 15% sepiolite powder under above-mentioned preparation method,
Compounding is the passivator for repairing heavy metal pollution agricultural land soil, is uniformly spread with 3% mass ratio to soil surface, utilizes rotation
It ploughs machine plowed soils at least 2 times, ploughed depth is 20 cm, is sufficiently mixed above-mentioned passivator with soil, plants after pouring water 3 days
Rice.
The bio-available Zn concentration variation of 2 plot heavy metal in soil of embodiment and deactivation rate are shown in Table 2 during test.
Table 2: the variation of 2 plot heavy metal in soil bio-available Zn concentration of embodiment and deactivation rate
| Heavy metal | Cd | Pb | As | Cu |
| Before reparation (mg/kg) | 1.23 | 128.5 | 39.5 | 320.4 |
| After reparation (mg/kg) | 0.51 | 54.4 | 20.6 | 224.6 |
| Deactivation rate (%) | 58.5 | 57.7 | 31.4 | 29.9 |
Embodiment 3
Choose the pollution plot near Fuyang area of Hangzhou, Zhejiang province city chemical plant, 400 square meter of test area, soil property pH value
It is 6.93,1.3 mg/kg of soil available Cd concentration, 162.4 mg/kg of Available Lead, 46.3 mg/kg of available state arsenic have
Imitate 315.7 mg/kg of state copper.
With quality proportioning be 60% stalk black wood charcoal, 30% plant ash and 10% sepiolite powder under above-mentioned preparation method,
Compounding is the passivator for repairing heavy metal pollution agricultural land soil, is uniformly spread with 3% mass ratio to soil surface, utilizes rotation
It ploughs machine plowed soils at least 2 times, ploughed depth is 20 cm, is sufficiently mixed above-mentioned passivator with soil, plants after pouring water 3 days
Rice.
The bio-available Zn concentration variation of 3 plot heavy metal in soil of embodiment and deactivation rate are shown in Table 3 during test.
Table 3: the variation of 3 plot heavy metal in soil bio-available Zn concentration of embodiment and deactivation rate
| Heavy metal | Cd | Pb | As | Cu |
| Before reparation (mg/kg) | 1.30 | 162.4 | 46.3 | 315.7 |
| After reparation (mg/kg) | 0.54 | 67.7 | 31.2 | 227.9 |
| Deactivation rate (%) | 58.5 | 58.3 | 32.6 | 27.8 |
Embodiment 4
Choose the pollution plot near Fuyang area of Hangzhou, Zhejiang province city chemical plant, 300 square meter of test area, soil property pH value
It is 6.94,1.2 mg/kg of soil available Cd concentration, 137 mg/kg of Available Lead, 43.1 mg/kg of available state arsenic, effectively
316.4 mg/kg of state copper.
With quality proportioning be 65% stalk black wood charcoal, 25% plant ash and 10% sepiolite powder under above-mentioned preparation method,
Compounding is the passivator for repairing heavy metal pollution agricultural land soil, is uniformly spread with 2% mass ratio to soil surface, utilizes rotation
It ploughs machine plowed soils at least 2 times, ploughed depth is 20 cm, is sufficiently mixed above-mentioned passivator with soil, plants after pouring water 3 days
Rice.
The bio-available Zn concentration variation of 4 plot heavy metal in soil of embodiment and deactivation rate are shown in Table 4 during test.
Table 4: the variation of 4 plot heavy metal in soil bio-available Zn concentration of embodiment and deactivation rate
| Heavy metal | Cd | Pb | As | Cu |
| Before reparation (mg/kg) | 1.26 | 140.5 | 42.8 | 322.9 |
| After reparation (mg/kg) | 0.43 | 61.3 | 30.1 | 219.2 |
| Deactivation rate (%) | 65.9 | 56.4 | 29.7 | 32.1 |
Embodiment 5
Choose the pollution plot near Fuyang area of Hangzhou, Zhejiang province city chemical plant, 300 square meter of test area, soil property pH value
It is 7.02,1.2 mg/kg of soil available Cd concentration, 137 mg/kg of Available Lead, 43.1 mg/kg of available state arsenic, effectively
316.4 mg/kg of state copper.
With quality proportioning be 70% stalk black wood charcoal, 20% plant ash and 10% sepiolite powder under above-mentioned preparation method,
Compounding is the passivator for repairing heavy metal pollution agricultural land soil, is uniformly spread with 1% mass ratio to soil surface, utilizes rotation
It ploughs machine plowed soils at least 2 times, ploughed depth is 20 cm, is sufficiently mixed above-mentioned passivator with soil, then pours water in 3 days
Rice cultivation after primary.
The bio-available Zn concentration variation of 5 plot heavy metal in soil of embodiment and deactivation rate are shown in Table 5 during test.
Table 5: the variation of 5 plot heavy metal in soil bio-available Zn concentration of embodiment and deactivation rate
| Heavy metal | Cd | Pb | As | Cu |
| Before reparation (mg/kg) | 1.30 | 144.9 | 41.7 | 319.7 |
| After reparation (mg/kg) | 0.42 | 58.2 | 27.8 | 210.4 |
| Deactivation rate (%) | 67.7 | 59.8 | 33.4 | 34.2 |
Comparative example
Choose the pollution plot near Fuyang area of Hangzhou, Zhejiang province city chemical plant, 300 square meter of test area, soil property pH value
It is 7.02,1.2 mg/kg of soil available Cd concentration, 140.7 mg/kg of Available Lead, 40 mg/kg of available state arsenic, effectively
325.6 mg/kg of state copper.
Without repairing rice cultivation.The bio-available Zn concentration of comparative example plot heavy metal in soil becomes during test
Change and deactivation rate is shown in Table 6.
Table 6: the variation of comparative example plot heavy metal in soil bio-available Zn concentration and deactivation rate
| Heavy metal | Cd | Pb | As | Cu |
| Before reparation (mg/kg) | 1.20 | 140.7 | 40 | 325.6 |
| After reparation (mg/kg) | 1.16 | 137.3 | 39.3 | 319.7 |
| Deactivation rate (%) | 3.0 | 2.4 | 1.8 | 1.8 |
Claims (10)
1. a kind of passivator for heavy metal pollution agricultural land soil reparation, it is characterised in that: the passivator is by following quality
The raw material of percentage forms: charcoal 60%-70%, plant ash 20%-30% and sepiolite powder 10%-20%.
2. a kind of passivator for heavy metal pollution agricultural land soil reparation according to claim 1, it is characterised in that: institute
Stating charcoal is high-carbon, high nitrogen made of being fired as corn stover and the stalk black wood charcoal containing functional group.
3. a kind of preparation using the passivator for being used for the reparation of heavy metal pollution agricultural land soil described in one of claims 1 or 2
Method, it is characterised in that: the preparation method comprises the following steps:
Step 1.1: firing stalk black wood charcoal；
Step 1.2: plant ash and sepiolite powder are sieved；
Step 1.3: weighing stalk black wood charcoal, plant ash and the sepiolite powder of certain mass proportion；
Step 1.4: passivator is made in mixing.
4. a kind of preparation method of passivator for heavy metal pollution agricultural land soil reparation according to claim 3,
Be characterized in that: the firing of the stalk black wood charcoal the following steps are included:
Step 2.1: by corn stover drying, crushing, obtain maize straw powder；
Step 2.2: being uniformly mixed, be put into stainless cylinder of steel after maize straw powder is sieved；
Step 2.3: the stainless cylinder of steel equipped with maize straw powder being placed in Muffle furnace, with 500 DEG C of pyrolysis 2h；
Step 2.4: the semi-finished product after pyrolysis being sieved, stalk black wood charcoal is made.
5. a kind of preparation method of passivator for heavy metal pollution agricultural land soil reparation according to claim 4,
Be characterized in that: in the step 2.2, maize straw powder is uniformly mixed after crossing the sieve of 0.2mm.
6. a kind of preparation method of passivator for heavy metal pollution agricultural land soil reparation according to claim 4,
Be characterized in that: in the step 2.4, the semi-finished product after pyrolysis cross the sieve of 0.2mm, and stalk black wood charcoal is made.
7. a kind of preparation method of passivator for heavy metal pollution agricultural land soil reparation according to claim 3,
It is characterized in that: in the step 1.2, plant ash and the sepiolite powder sieve of mistake 0.5mm.
8. a kind of application using the passivator for the reparation of heavy metal pollution agricultural land soil described in one of claim 1 ~ 2,
It is characterized by: it is described application the following steps are included:
Step 3.1: clearing up area's earth's surface is repaired；
Step 3.2: the passivator is uniformly spread fertilizer over the fields to soil surface；
Step 3.3: utilizing rotary cultivator plowed soils at least 2 times, ploughed depth is 20 cm.
9. the application of the passivator according to claim 8 for the reparation of heavy metal pollution agricultural land soil, it is characterised in that:
In the step 3.2, the additive amount of passivator for institute's plowed soils quality 1%-3%.
10. the application of the passivator according to claim 8 for the reparation of heavy metal pollution agricultural land soil, feature exist
In: in the step 3.2, when spreading fertilizer over the fields passivator, wind-force is less than 3 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810807327.8A CN108929697A (en) | 2018-07-21 | 2018-07-21 | For the passivator of heavy metal pollution agricultural land soil reparation and its preparation and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810807327.8A CN108929697A (en) | 2018-07-21 | 2018-07-21 | For the passivator of heavy metal pollution agricultural land soil reparation and its preparation and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108929697A true CN108929697A (en) | 2018-12-04 |
Family
ID=64444338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810807327.8A Pending CN108929697A (en) | 2018-07-21 | 2018-07-21 | For the passivator of heavy metal pollution agricultural land soil reparation and its preparation and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108929697A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369302A (en) * | 2018-12-21 | 2019-02-22 | 中国农业科学院农业环境与可持续发展研究所 | A kind of rice field clean type charcoal mud base bio-fertilizer |
| CN110352652A (en) * | 2019-07-01 | 2019-10-22 | 农业农村部环境保护科研监测所 | A kind of method of in-situ immobilization vegetable field soil cadmium and atrazine combined pollution |
| CN110367063A (en) * | 2019-07-29 | 2019-10-25 | 贵州理工学院 | A kind of preparation method of quinoa bitter buckwheat compound nutritional meal |
| CN111925809A (en) * | 2020-07-15 | 2020-11-13 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Contaminated soil remediation preparation, preparation method, remediation device and application |
| CN112139234A (en) * | 2020-09-16 | 2020-12-29 | 东北大学 | Method for inhibiting heavy metal desorption in soil freeze thawing process |
| CN112479773A (en) * | 2020-11-03 | 2021-03-12 | 天津华勘环保科技有限公司 | Compound passivator suitable for heavy metal compound contaminated soil and use method thereof |
| CN113527000A (en) * | 2020-04-13 | 2021-10-22 | 中国科学院沈阳应用生态研究所 | Compound agent for passivation remediation of heavy metal contaminated farmland soil and application thereof |
| CN114669593A (en) * | 2022-03-01 | 2022-06-28 | 武汉市秀谷科技有限公司 | Treatment method for farmland heavy metal chromium pollution |
| CN114769307A (en) * | 2022-04-22 | 2022-07-22 | 江西有色地质矿产勘查开发院 | Soil remediation agent for reducing cadmium concentration in cultivated land and using method and application thereof |
| CN114806592A (en) * | 2022-04-12 | 2022-07-29 | 核工业西南勘察设计研究院有限公司 | Composite soil passivator and preparation method thereof |
| CN114836218A (en) * | 2022-03-04 | 2022-08-02 | 武汉市秀谷科技有限公司 | Medicament for farmland heavy metal pollution treatment and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106800933A (en) * | 2017-01-11 | 2017-06-06 | 四川宜可环保技术有限公司 | A kind of passivator repaired for farmland soil heavy metals combined pollution and its preparation and application |
-
2018
- 2018-07-21 CN CN201810807327.8A patent/CN108929697A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106800933A (en) * | 2017-01-11 | 2017-06-06 | 四川宜可环保技术有限公司 | A kind of passivator repaired for farmland soil heavy metals combined pollution and its preparation and application |
Non-Patent Citations (2)
| Title |
|---|
| 孙慧等: ""海泡石与生物炭对镉污染红壤的钝化修复研究"", 《江苏农业科学》 * |
| 陈钊等: ""不同土壤改良剂对烟草吸收镉的影响"", 《烟草农学》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109369302A (en) * | 2018-12-21 | 2019-02-22 | 中国农业科学院农业环境与可持续发展研究所 | A kind of rice field clean type charcoal mud base bio-fertilizer |
| CN110352652A (en) * | 2019-07-01 | 2019-10-22 | 农业农村部环境保护科研监测所 | A kind of method of in-situ immobilization vegetable field soil cadmium and atrazine combined pollution |
| CN110367063A (en) * | 2019-07-29 | 2019-10-25 | 贵州理工学院 | A kind of preparation method of quinoa bitter buckwheat compound nutritional meal |
| CN113527000A (en) * | 2020-04-13 | 2021-10-22 | 中国科学院沈阳应用生态研究所 | Compound agent for passivation remediation of heavy metal contaminated farmland soil and application thereof |
| CN111925809A (en) * | 2020-07-15 | 2020-11-13 | 山东省鲁南地质工程勘察院(山东省地勘局第二地质大队) | Contaminated soil remediation preparation, preparation method, remediation device and application |
| CN112139234B (en) * | 2020-09-16 | 2021-09-14 | 东北大学 | Method for inhibiting heavy metal desorption in soil freeze thawing process |
| CN112139234A (en) * | 2020-09-16 | 2020-12-29 | 东北大学 | Method for inhibiting heavy metal desorption in soil freeze thawing process |
| CN112479773A (en) * | 2020-11-03 | 2021-03-12 | 天津华勘环保科技有限公司 | Compound passivator suitable for heavy metal compound contaminated soil and use method thereof |
| CN114669593A (en) * | 2022-03-01 | 2022-06-28 | 武汉市秀谷科技有限公司 | Treatment method for farmland heavy metal chromium pollution |
| CN114836218A (en) * | 2022-03-04 | 2022-08-02 | 武汉市秀谷科技有限公司 | Medicament for farmland heavy metal pollution treatment and preparation method thereof |
| CN114836218B (en) * | 2022-03-04 | 2024-02-09 | 武汉市秀谷科技有限公司 | Medicament for treating farmland heavy metal pollution and preparation method thereof |
| CN114806592A (en) * | 2022-04-12 | 2022-07-29 | 核工业西南勘察设计研究院有限公司 | Composite soil passivator and preparation method thereof |
| CN114806592B (en) * | 2022-04-12 | 2023-08-15 | 核工业西南勘察设计研究院有限公司 | Composite soil passivating agent and preparation method thereof |
| CN114769307A (en) * | 2022-04-22 | 2022-07-22 | 江西有色地质矿产勘查开发院 | Soil remediation agent for reducing cadmium concentration in cultivated land and using method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108929697A (en) | For the passivator of heavy metal pollution agricultural land soil reparation and its preparation and application | |
| CN105802637B (en) | A kind of soil heavy metal passivant and preparation method and the passivating method to Cadmium in Soil | |
| CN105061114B (en) | A kind of heavy metal polluted soil of farmland composite modifying agent and preparation method thereof and method of administration | |
| CN107446588B (en) | Humic acid type acid soil conditioner and preparation method and application thereof | |
| CN109181704B (en) | Soil heavy metal and organic pollution remediation agent and preparation and application methods thereof | |
| US10457612B1 (en) | Slag bacterial fertilizer and preparation method thereof and method for improving degraded soil | |
| CN109504398A (en) | A kind of humic acid nano zero valence iron soil Cr pollution amelioration agent and preparation method | |
| CN110003912B (en) | Modification method of biochar and application of biochar in soil remediation | |
| CN109351769A (en) | Heavy-metal contaminated soil humic acid green in-situ solidifies renovation technique | |
| CN107350281A (en) | One kind is applied to northern farmland soil of sewage irrigation area passivator and its application process | |
| CN102553905A (en) | Method for remediating cadmium contaminated soil of vegetable field in situ by compounding bio-charcoal and organic fertilizer | |
| CN106734123A (en) | A kind of composite conditioner repaired for heavy metal polluted soil of farmland and preparation method thereof | |
| CN109456768A (en) | A kind of heavy metal cadmium soil renovation agent, preparation method and application method | |
| CN107384408A (en) | A kind of farmland pollution soil heavy metal passivant and its preparation and application | |
| CN113462399B (en) | Modifier for coal ash-based sand Jiang Heitu and preparation method and application thereof | |
| CN111100645A (en) | Biochar-based composition and preparation method and application thereof | |
| CN114192565B (en) | Novel method for repairing heavy metal cadmium, arsenic, mercury, lead and chromium composite contaminated soil | |
| Rhoades et al. | Examining the potential of forest residue-based amendments for post-wildfire rehabilitation in Colorado, USA | |
| CN105733603A (en) | Composition for treating mine soil pollution and method for remedying mine soil | |
| CN109777428B (en) | Composite modified diatomite heavy metal passivator and application thereof | |
| CN102204436A (en) | Soil treatment method for inhibiting Cd/Pb absorption of rice in contaminated farm land | |
| CN104140820A (en) | Desertification and degeneration soil modifier made of organic waste and active coke | |
| CN107999535A (en) | A kind of method using herbaceous plant cadmium pollution soil repair | |
| CN109158414A (en) | A kind of plant extract in heavy metal pollution farmland-chemical passivation combined remediation method | |
| CN112028713A (en) | Passivator for treating soil arsenic pollution and treatment method |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181204 |