CN108517212A - A kind of soil heavy metal combined pollution eluant, eluent production method and application - Google Patents
A kind of soil heavy metal combined pollution eluant, eluent production method and application Download PDFInfo
- Publication number
- CN108517212A CN108517212A CN201810125628.2A CN201810125628A CN108517212A CN 108517212 A CN108517212 A CN 108517212A CN 201810125628 A CN201810125628 A CN 201810125628A CN 108517212 A CN108517212 A CN 108517212A
- Authority
- CN
- China
- Prior art keywords
- soil
- earth pillar
- added
- heavy metal
- grams
- 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
- B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
A kind of soil heavy metal combined pollution eluant, eluent production method and application, the technology belong to field of environment protection.The technology is realized by following steps：Diacetayl amide tetraacethyl sodium, double 1 are added in distilled water; 6 hexamethylene triamine, five methylenephosphonic acid, sodium citrate, maleic acrylic copolymer, sodium pyrophosphate; stirring; make dissolving; appropriate heating; make to be completely dissolved; add hydrochloric acid and sodium metasilicate; it stirs evenly, which is added in the soil of pollution various heavy, the various heavy in soil can be eluted and be removed; to eliminate the pollution of soil various heavy simultaneously; soil protection productivity protects underground water, ensures food safety.
Description
Technical field
The invention belongs to field of environment protection, more particularly to a kind of soil heavy metal combined pollution eluant, eluent production method and
Using.
Background technology
The heavy metal of nature is mainly distributed in air, water body and soil, and the heavy metal distribution in different systems is different,
Source is divided into natural source and artificial source.
Pass through the analysis and comparison to multiple provincial capital's major functions area surface dust heavy metal data, the results showed that,
Industrial area surface dust content of beary metal highest, commuter zone surface dust content of beary metal is minimum, shopping centre and resident cultural district
Surface dust content of beary metal is in medium level.The different larger element of surface dust heavy metal level point between 4 kinds of functional areas
It is Zn and Pb, the content difference of Cu and Cd in different function area surface dust is smaller.
Industrial area surface dust heavy metal largely derives from industrial production associated therewith.Such as steel production, vapour
Vehicle manufacture is smelted and is machined, plating.Commuter zone surface dust mainly by traffic activity influenced include locomotive brake block,
The abrasion of tire and other parts, the discharge of tail gas and dust on the roads are raised and are deposited repeatedly.Shopping centre surface dust comes
Source is relatively various and complicated, not only derives from soil, air bells laid, but also part was influenced by traffic activity, and also and skin
Weathering, the falling off of urban facilities surface paint chipping, the carrying of dust caused by the abrasion of commodity and the aggregation of crowd
It is related with migration.Resident cultural district is similar to shopping centre surface dust sources of heavy metal part, but in the unique source room having
The input of dust.
In April, 2005 in December, 2013, Environmental Protection Department can carry out national soil pollution for the first time with Ministry of Land and Resources
Status investigation is announced《National Soil Pollution Investigation bulletin》.Investigation result shows that national soil environment situation is not allowed totally
Optimism, some areas soil pollution is heavier, and arable soil environmental quality causes anxiety, industry and mining discarded ground soil environment outstanding problem.
Pollution situation：The total point exceeding standard rate of national soil is 16.1%, wherein slightly, slightly, moderate and serious pollution
Point ratio is respectively 11.2%, 2.3%, 1.5% and 1.1%.
In terms of land use pattern, arable land, forest land, grassland soil point exceeding standard rate be respectively 19.4%, 10.0%,
10.4%.In terms of pollution type, based on inorganic type, organic type takes second place, and compound pollution proportion is smaller, and inorganic pollution is exceeded
Point digit accounts for the 82.8% of all exceeded points.
In terms of the exceeded situation of pollutant, 8 kinds of cadmium, mercury, arsenic, copper, lead, chromium, zinc, nickel inorganic pollution point exceeding standard rate difference
It is 7.0%, 1.6%, 2.7%, 2.1%, 1.5%, 1.1%, 0.9%, 4.8%；Six six six, DDT, 3 class of polycyclic aromatic hydrocarbon
Organic pollution point exceeding standard rate is respectively 0.5%, 1.9%, 1.4%.
In terms of pollution distribution situation, soils in south china pollution overweights the north；Yangtze River Delta, the Delta of the Pearl River, the old work in northeast
The subregions such as industry base soil contamination problem is more prominent, and southwest, variable charge soil heavy metals exceeding standard range are larger；Cadmium,
The situation gradually risen from northwest to the southeast, from northeast to southwestward is presented in 4 kinds of mercury, arsenic, lead level of inorganic contaminants distributions.
Heavy metal pollution of soil in addition to having outside the Pass with human activities such as industrial production, rural activities, also with matrix weathering
Cheng Youguan.Therefore, Heavy Metal Pollution In Cultivated Land source can be divided into external source pollution and endogenous pollution two major classes.Wherein atmospheric sedimentation
It is the main external source import factor of heavy metal-polluted soil.In addition sewage irrigation and chemical fertilizer application are its of Heavy Metal Pollution In Cultivated Land
His external source pollution source.
There are metal mine exploitation smelting, chemical industry production, heavy metal pesticide, sewage irrigation in heavy metal pollution of soil source
With chemical fertilizer application and high geology background value etc., wherein Non Ferrous Mineral Industry picks up and smelts the exhaust gas containing heavy metal discharged and sinks
The solid wastes corrosions such as drop, waste water irrigation and waste residue diffuse into the main path that soil etc. is heavy metal pollution.
As a whole, the detection device for multi metallic elements combined pollution based on cadmium-copper, arsenic-cadmium-lead etc., represents China
Main heavy metal pollution of soil type.Mainly there are two aspects in the source of heavy metal-polluted soil, and one is derived from soil parent material, different
Matrix, soil-forming process be formed by soil, content of beary metal difference is apparent.Two are derived from mankind's activity：Industrial and mining area with
Solid waste, industry (three wastes) discharge and the air and acid rain depositions of factory floor, long-term dirty filling, traffic pollution, automotive wheels
Tire is worn and the tail gas of discharge, organic fertilizer！A large amount of applications of chemical fertilizer and pesticide.By the comparison with background value, the enrichment of Cd is most
To be serious, followed by Pb, exceeded phenomenon is in national generally existing.On the whole, Southwest China heavy metal-polluted soil is enriched with
Value is higher, followed by Guangdong and Guangxi Provinces and Liaoning Area.Heavy metal contained by soil can enter water body through a variety of ways, can also be with
Airborne dust is that carrier is propagated in the world.
Chinese city heavy metal content in soil has been more than that soil background, especially Cd and Pb are seriously polluted.Chinese city
There are apparent regional disparity, the urban soil content of beary metal differences of east, middle part and west area for the content of heavy metal-polluted soil
Larger, the pollution level of provincial capital and prefecture-level city differs, and there is also significant differences between the different function area of city.
2016, national environmental protection portion approved《Soil Pollution Control action plan》,《Soil Pollution Control row
Dynamic plan》It is a huge engineering of scale of investment, also will will be a long-term engineering, will just have step, and gradually implement stage by stage.
With implementing for 6 soil protections and the emphasis demonstration area project of pollution control, the acceleration of China's soil pollution reparation will be promoted
Development.It should say soil remediation wide market, although future market space is huge, due to soil remediation correlation skill
The many difficulties that the soil remediations such as the shortage of art standard and basic data are implemented, interior in recent years, China's Soil Pollution Control also needs
It first passes through pilot demonstration and part is carried out, then realize the process of scale development.Basic data and repair experience accumulation with
And the deposit of recovery technique by be China's current stage soil remediation vital task.
The Treatment process of soil mainly has physics Treatment process, chemical harnessing technology, microbial treatment technology, plant in treating
Technology etc. is several.Soil antibiotic and pollution by pesticides technology is common has：Phytoremediation, microorganism remediation, rhizosphere microorganism joint
It repairs, physical chemistry reparation, chemical remediation etc..
These methods respectively have advantage and disadvantage, are mostly used in water pollution control, and the remediation contaminated soil for large area is also not
It is more, because cost is too high, there is secondary pollution, while being clearly not thorough.
This technology synthesis administers the heavy metal in soil using single heavy metal-polluted soil passivation, curing, still
Active Heavy Metals are converted the words nonabsorbable form of plant by solidification and passivation only temporary makeshift, but with when
Between, the change of weather and geological conditions and soil physical and chemical property variation, the heavy metal of solidification or passivation can release, become
Viability ion；It is single that heavy metal in soil pollution can be handled using chelating agent, but efficiency is low, the time is long, uses
The composite highly effective heavy metal-polluted soil eluent treatment effeciency of this law production is high, and environment friendly is high, easy to operate, easy to implement big
Technical scale application.
Invention content
The technical issues of solution：The present invention is for heavy metal pollution of soil, especially Metallurgical Factory, metal stope and chemical industry
Factory's contaminated sites invent a kind of high-efficiency metal eluant, eluent, within a short period of time soil Fl heavy metal portion big absolutely
Divide and chelate and dissolve, through pure water elution, to remove harm of the heavy metal-polluted soil to environment and the mankind.
Technical solution：A kind of soil heavy metal combined pollution eluant, eluent production method and application, step are：A. it is steamed at 50 liters
1000-20000 grams of diacetayl amide tetraacethyl sodium (EDTTI-Na), 500-1500 grams of double 1,6- hexamethylene triamine are added in distilled water
Five methylenephosphonic acids (BHMTPMPA), 500-2500 grams of sodium citrate are slowly dissolved by heating, are slowly stirred, and are added after all dissolving
Enter 500-3500 grams of maleic acid-acrylic acid copolymer (MA-AA), 500-2000 grams of sodium metasilicate, 1000-3000 grams of sodium pyrophosphate,
It slowly stirs, after most of dissolving, after cooling, 200-1000 milliliters of concentrated hydrochloric acids is added, stir evenly.It b. will be after above-mentioned a processing
2000-5000 milliliters of product be added in the earth pillar equipped with 50 kilograms of soil, dissolving and elution earth pillar in heavy metal, adding
Before entering above-mentioned mixing eluent, 6000-25000 milliliters of distilled water are first added in earth pillar, are sufficiently humidified so as to earth pillar, and make earth pillar
Middle grogs and gap are evenly distributed, and not big hole exists.C. it is slowly added to 2000- in batches in earth pillar after above-mentioned b processing
The mixing eluent that 5000 milliliters of above-mentioned a are eventually fabricated places collector collection earth pillar leacheate, the leaching of outflow below earth pillar
Washing lotion continuously adds in earth pillar, while starting the stirring rod in earth pillar, continuously stirs in earth pillar soil 5-15 minutes, allows eluant, eluent
It comes into full contact with and reacts with soil, constantly elute the heavy metal in earth pillar, 5-10 times repeatedly, be then added again in earth pillar upper end
5000-20000 milliliters of distilled water continue to elute, 5-10 times continuous；Leacheate is adjusted from the lower end rate of outflow, is controlled in 10-50
Ml/min.
A kind of any improvement heavy metal pollution of soil technology and its refuse landfill, coal washery, municipal sludge plus
Petrol station, paper mill, stope, petrochemical plant, oil plant, electroplate factory, electrolysis plant, metallurgical works, Fine Chemical Works, farmland, field
The application that ground contamination and farm's heavy metal dye of soil pollution nearby are repaired.
Advantageous effect：The present invention can eliminate Compound Heavy Metals object in soil to greatest extent, eliminate to greatest extent
Heavy metal pollution of soil and its destruction to environment and the harm to the mankind, are conducive to Ecological Sustainable Development.
The present invention is compared with prior art：
1) the heavy metal pollution of soil removal leacheate researched and developed in the present invention, production method is easy, it is technically simple it is easy, can
It is strong operability, of low cost, highly practical：
2) the high-efficiency multi-function removal heavy metal pollution of soil technology that the present invention uses, can remove in soil to the maximum extent
The heavy metal of pollution reduces the residual of the harmful substance after soil treatment, with currently used single solidification hair/deactivation method or
The single chemical leaching liquid phase ratio of person, removal efficiency is high, and speed is fast, and residue and secondary pollution are seldom, and residue is mostly
Organic substance simple in structure is easy by environment and Soil Microorganism degradation removal, is environmentally friendly heavy metal eluant, eluent.
Description of the drawings
Fig. 1 is using this technology processing heavy metal-polluted soil process comparison.
Specific implementation mode
Below in conjunction with example, the invention will be further described：
Embodiment 1：
1. 1000-20000 grams of diacetayl amide tetraacethyl sodium is added in 50 liters of distilled water, 500 grams of double 1,6- hexylidenes
Five methylenephosphonic acid of triamine, 500 grams of sodium citrates, slowly dissolves by heating, slowly stirs, and 500 grams of Malaysias are added after all dissolving
Acid-acrylic copolymer, 500 grams of sodium metasilicate, 1000 grams of sodium pyrophosphates, are slowly stirred, and after most of dissolving, after cooling, are added
200 milliliters of concentrated hydrochloric acids, stir evenly.
2. by above-mentioned 1, treated that 2000 milliliters of product is added in the earth pillar equipped with 50 kilograms of soil, dissolving and elution
6000 milliliters of distilled water are first added in earth pillar, are sufficiently humidified so as to soil before above-mentioned mixing eluent is added for heavy metal in earth pillar
Column, and so that grogs and gap are evenly distributed in earth pillar, not big hole exists.
3. it is slowly added to the 2000 milliliters above-mentioned 1 mixing eluents being eventually fabricated in batches in earth pillar after above-mentioned 2 processing,
Collector is placed below earth pillar and collects earth pillar leacheate, and the leacheate of outflow continuously adds in earth pillar, while starting in earth pillar
Stirring rod continuously stirs soil 5 minutes in earth pillar, allows eluant, eluent to be come into full contact with soil and react, and constantly elutes in earth pillar
Heavy metal 5 times repeatedly, is then added 5000 milliliters of distilled water in earth pillar upper end again and continues to elute, continuous 5 times；Adjust leacheate
From the lower end rate of outflow, control in 10 ml/mins.Whole water-soluble state heavy metals, most exchange states and absorption in soil
State heavy metal, iron and manganese oxides package heavy metal, carbonate combine state heavy metal and organically combine state heavy metal are removed.
Embodiment 2：
1. 10000 grams of diacetayl amide tetraacethyl sodium is added in 50 liters of distilled water, 800 grams of double 1,6- hexamethylene triamines five
Methylenephosphonic acid, 1500 grams of sodium citrates, slowly dissolves by heating, slowly stirs, and 1500 grams of maleic acids-are added after all dissolving
Acrylic copolymer, 1000 grams of sodium metasilicate, 2000 grams of sodium pyrophosphates, are slowly stirred, and after most of dissolving, after cooling, are added 800
Milliliter concentrated hydrochloric acid, stirs evenly.
2. by above-mentioned 1, treated that 3000 milliliters of product is added in the earth pillar equipped with 50 kilograms of soil, dissolving and elution
15000 milliliters of distilled water are first added in earth pillar, are sufficiently humidified so as to before above-mentioned mixing eluent is added for heavy metal in earth pillar
Earth pillar, and so that grogs and gap are evenly distributed in earth pillar, not big hole exists.
3. it is slowly added to the 3000 milliliters above-mentioned 1 mixing eluents being eventually fabricated in batches in earth pillar after above-mentioned 2 processing,
Collector is placed below earth pillar and collects earth pillar leacheate, and the leacheate of outflow continuously adds in earth pillar, while starting in earth pillar
Stirring rod continuously stirs soil 10 minutes in earth pillar, allows eluant, eluent to be come into full contact with soil and react, and constantly elutes in earth pillar
Heavy metal 8 times repeatedly, is then added 10000 milliliters of distilled water in earth pillar upper end again and continues to elute, continuous 8 times；Adjust leacheate
From the lower end rate of outflow, control in 30 ml/mins.Whole water-soluble state heavy metals, most exchange states and absorption in soil
State heavy metal, iron and manganese oxides package heavy metal, carbonate combine state heavy metal and organically combine state heavy metal are removed.
Embodiment 3
1. 20000 grams of diacetayl amide tetraacethyl sodium is added in 50 liters of distilled water, 1500 grams of double 1,6- hexamethylene triamines
Five methylenephosphonic acids, 2500 grams of sodium citrates, slowly dissolve by heating, slowly stir, and 3500 grams of maleic acids-are added after all dissolving
Acrylic copolymer, 2000 grams of sodium metasilicate, 3000 grams of sodium pyrophosphates, are slowly stirred, and after most of dissolving, after cooling, are added
1000 milliliters of concentrated hydrochloric acids, stir evenly.
2. by above-mentioned 1, treated that 5000 milliliters of product is added in the earth pillar equipped with 50 kilograms of soil, dissolving and elution
25000 milliliters of distilled water are first added in earth pillar, are sufficiently humidified so as to before above-mentioned mixing eluent is added for heavy metal in earth pillar
Earth pillar, and so that grogs and gap are evenly distributed in earth pillar, not big hole exists.
3. it is slowly added to the 4000 milliliters above-mentioned 1 mixing eluents being eventually fabricated in batches in earth pillar after above-mentioned 2 processing,
Collector is placed below earth pillar and collects earth pillar leacheate, and the leacheate of outflow continuously adds in earth pillar, while starting in earth pillar
Stirring rod continuously stirs soil 15 minutes in earth pillar, allows eluant, eluent to be come into full contact with soil and react, and constantly elutes in earth pillar
Heavy metal 10 times repeatedly, is then added 20000 milliliters of distilled water in earth pillar upper end again and continues to elute, continuous 10 times；Adjust elution
Liquid is controlled from the lower end rate of outflow in 50 ml/mins.Whole water-soluble state heavy metals, most exchange states and suction in soil
Attached state heavy metal, iron and manganese oxides package heavy metal, carbonate combine state heavy metal and organically combine state heavy metal are removed.
The application example of the present invention：
The technology of the present invention is used to pollute the application of various heavy soil remediation.
1, it with reference to embodiment 1, is handled containing heavy metal Cd, Pb, Cr and Hg contaminated soil using this technology, by processing
Afterwards, Cd is remained with the control soil of this technology not being used to compare, in soil reduces 94%, Pb reduction 87%, Cr reductions
96%, Hg reduce 79%, (Fig. 1)；
2, it is handled using this technology and is polluted containing heavy metal Cd, Pb, Cr and Hg with reference to embodiment 1 with reference to embodiment 2
Soil remains Cd with the control soil of this technology not being used to compare, in soil and reduces 97%, Pb reductions after treatment
94%, Cr reduce by 98%, Hg and reduce 87%,；
3, it is handled using this technology and is polluted containing heavy metal Cd, Pb, Cr and Hg with reference to embodiment 1 with reference to embodiment 3
Soil remains Cd with the control soil of this technology not being used to compare, in soil and reduces 98%, Pb reductions after treatment
93%, Cr reduce by 99%, Hg and reduce 90%.
Claims (5)
1. a kind of soil heavy metal combined pollution eluant, eluent production method and application, it is characterised in that step is：
A. 1000-20000 grams of diacetayl amide tetraacethyl sodium (EDTTI-Na) is added in 50 liters of distilled water, 500-1500 grams double
1,6- hexamethylene triamine, five methylenephosphonic acid (BHMTPMPA), 500-2500 grams of sodium citrate are slowly dissolved by heating, are slowly stirred,
500-3500 grams of maleic acid-acrylic acid copolymer (MA-AA), 500-2000 grams of sodium metasilicate, 1000- are added after all dissolving
3000 grams of sodium pyrophosphates, are slowly stirred, and after most of dissolving, after cooling, 200-1000 milliliters of concentrated hydrochloric acids are added, stir evenly.
B. by above-mentioned a, treated that 2000-5000 milliliters of product is added in the earth pillar equipped with 50 kilograms of soil, dissolving and elution
Before above-mentioned mixing eluent is added 6000-25000 milliliters of distilled water are first added, fully in heavy metal in earth pillar in earth pillar
Earth pillar is moistened, and so that grogs and gap are evenly distributed in earth pillar, not big hole exists.
C. it is slowly added to the mixing eluent that 2000-5000 milliliters of above-mentioned a are eventually fabricated in earth pillar in batches after above-mentioned b processing,
Collector is placed below earth pillar and collects earth pillar leacheate, and the leacheate of outflow continuously adds in earth pillar, while starting in earth pillar
Stirring rod, continuously stir in earth pillar soil 5-15 minutes, allow eluant, eluent to be come into full contact with soil and react, constantly elute earth pillar
In heavy metal, 5-10 times repeatedly, then again earth pillar upper end be added 5000-20000 milliliters of distilled water continue to elute, continuous 5-
10 times；Leacheate is adjusted from the lower end rate of outflow, is controlled in 10-50 ml/mins.
2. a kind of soil heavy metal combined pollution eluant, eluent production method and application according to claim 1, it is characterised in that
The method is the diacetayl amide tetraacethyl sodium (EDTTI-Na) that 1000-20000 grams is added in 50 liters of distilled water, 500-1500
Gram double 1,6- hexamethylene triamines, five methylenephosphonic acids (BHMTPMPA), 500-2500 grams of sodium citrate are slowly dissolved by heating, are slowly stirred
Mix, after all dissolve after be added 500-3500 grams of maleic acid-acrylic acid copolymer (MA-AA), 500-2000 grams of sodium metasilicate,
1000-3000 grams of sodium pyrophosphate, is slowly stirred, and after most of dissolving, after cooling, 200-1000 milliliters of concentrated hydrochloric acids, stirring is added
Uniformly.
3. a kind of soil heavy metal combined pollution eluant, eluent production method and application according to claim 1, it is characterised in that
In the method, by above-mentioned a, treated that 2000-5000 milliliters of product is added in the earth pillar equipped with 50 kilograms of soil, dissolving
6000-25000 milliliters of distillations are first added in earth pillar before above-mentioned mixing eluent is added with the heavy metal in elution earth pillar
Water is sufficiently humidified so as to earth pillar, and so that grogs and gap are evenly distributed in earth pillar, and not big hole exists.
4. a kind of soil heavy metal combined pollution eluant, eluent production method and application according to claim 1, it is characterised in that
The method is slowly added to the mixing that 2000-5000 milliliter above-mentioned a are eventually fabricated after above-mentioned b processing in earth pillar and elutes in batches
Liquid places collector collection earth pillar leacheate below earth pillar, and the leacheate of outflow continuously adds in earth pillar, while starting earth pillar
In stirring rod, continuously stir in earth pillar soil 5-15 minutes, allow eluant, eluent to be come into full contact with soil and react, constantly elution soil
Heavy metal in column 5-10 times repeatedly, is then added 5000-20000 milliliters of distilled water in earth pillar upper end again and continues to elute, continuously
5-10 times；Leacheate is adjusted from the lower end rate of outflow, is controlled in 10-50 ml/mins.
5. a kind of any improvement heavy metal pollution of soil technology of Claims 1 to 4 and its refuse landfill, coal washery,
Municipal sludge, gas station, paper mill, stope, petrochemical plant, oil plant, electroplate factory, electrolysis plant, metallurgical works, fine chemistry industry
The application that factory, farmland, contaminated sites and farm the heavy metal dye of soil pollution nearby are repaired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810125628.2A CN108517212A (en) | 2018-02-02 | 2018-02-02 | A kind of soil heavy metal combined pollution eluant, eluent production method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810125628.2A CN108517212A (en) | 2018-02-02 | 2018-02-02 | A kind of soil heavy metal combined pollution eluant, eluent production method and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108517212A true CN108517212A (en) | 2018-09-11 |
Family
ID=63433059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810125628.2A Pending CN108517212A (en) | 2018-02-02 | 2018-02-02 | A kind of soil heavy metal combined pollution eluant, eluent production method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108517212A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433653A (en) * | 2016-09-22 | 2017-02-22 | 北京新源环境有限公司 | Composite eluting agent for restoring Cd and Pb contaminated soil and application method thereof |
| CN106694530A (en) * | 2016-12-06 | 2017-05-24 | 广州富生源环保工程有限公司 | Multi-stage heavy metal-contaminated soil restoration method |
| CN106833653A (en) * | 2017-01-24 | 2017-06-13 | 广东植物龙生物技术股份有限公司 | A kind of fast repairing method of heavy metal pollution |
| CN107312544A (en) * | 2017-06-30 | 2017-11-03 | 中国地质大学（武汉） | The compounding eluent and its application method of a kind of heavy-metal composite pollution soil remediation |
-
2018
- 2018-02-02 CN CN201810125628.2A patent/CN108517212A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106433653A (en) * | 2016-09-22 | 2017-02-22 | 北京新源环境有限公司 | Composite eluting agent for restoring Cd and Pb contaminated soil and application method thereof |
| CN106694530A (en) * | 2016-12-06 | 2017-05-24 | 广州富生源环保工程有限公司 | Multi-stage heavy metal-contaminated soil restoration method |
| CN106833653A (en) * | 2017-01-24 | 2017-06-13 | 广东植物龙生物技术股份有限公司 | A kind of fast repairing method of heavy metal pollution |
| CN107312544A (en) * | 2017-06-30 | 2017-11-03 | 中国地质大学（武汉） | The compounding eluent and its application method of a kind of heavy-metal composite pollution soil remediation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108410473A (en) | A kind of farmland soil heavy metals passivation agent and process for producing same and application | |
| Wang et al. | A review on in situ phytoremediation of mine tailings | |
| CN102500613B (en) | Process for restoring heavy metal contaminated soil/sludge through combining nanometer zero-valent iron with electromagnetic rake | |
| CN103396806A (en) | Agent and method used for remedying heavy metal polluted soil | |
| CN106811204A (en) | A kind of Some Mining Districts contaminated soil remediation agent of promoting growth of plants | |
| CN102107208A (en) | Method for restoring heavy metal polluted soil in mine field | |
| CN108262352A (en) | A kind of method for administering soil heavy metal combined pollution and application | |
| CN108384552A (en) | A kind of efficient heavy metal-polluted soil eluant, eluent production technology and application | |
| CN106085440A (en) | A kind of heavy-metal contaminated soil is combined eluent | |
| CN101831304A (en) | Method for using major metal tailings as soil conditioners after innocent treatment | |
| CN102873086A (en) | Mercury contaminated soil in-situ restoration method | |
| Lombi et al. | Soil contamination, risk reduction and remediation | |
| CN111100644A (en) | Microcapsule composite material for Cd and Pb polluted soil, preparation method and restoration method | |
| CN108480378A (en) | It is a kind of eliminate soil heavy metal combined pollution method and application | |
| CN108273844A (en) | Eluent production technology and application are eliminated in a kind of multifunction soil heavy metal pollution | |
| Tian et al. | Research on remediation technology of heavy metal contaminated soil | |
| CN108822860A (en) | A kind of agricultural land soil Compound Heavy Metals in-situ passivation technology and application | |
| CN108500053A (en) | It is a kind of simultaneously and rapidly removal heavy metal pollution of soil method and application | |
| CN110436728B (en) | Method for in-situ stabilization repair of lead-polluted bottom mud by iron-based material and microorganisms | |
| Tang et al. | Review of Remediation Technologies for Cadmium in soil | |
| CN104475433A (en) | Harmless control and resource recovery method of lands polluted by heavy metals | |
| CN111454724A (en) | Mine soil reclamation restoration agent and preparation method thereof | |
| CN108517212A (en) | A kind of soil heavy metal combined pollution eluant, eluent production method and application | |
| CN108262345A (en) | A kind of improvement heavy metal pollution of soil technology and application | |
| Wang | Heavy Metal Contamination of Agricultural Soils and Stream Sediments Near a Copper Mine in Tongling, People's Republic of China C. Wang,"* Z. Shen,“X. Liº C. Luo," Y.. Chen.“H. Yang |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180911 |
|
| WD01 | Invention patent application deemed withdrawn after publication |