CN109731901A - A kind of the stabilisation reparation medicament and restorative procedure of fluoride pollution soil - Google Patents
A kind of the stabilisation reparation medicament and restorative procedure of fluoride pollution soil Download PDFInfo
- Publication number
- CN109731901A CN109731901A CN201910030237.7A CN201910030237A CN109731901A CN 109731901 A CN109731901 A CN 109731901A CN 201910030237 A CN201910030237 A CN 201910030237A CN 109731901 A CN109731901 A CN 109731901A
- Authority
- CN
- China
- Prior art keywords
- soil
- medicament
- calcium
- stabilisation
- fluoride 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.)
- Granted
Links
Abstract
Medicament is repaired the invention discloses a kind of stabilisation of fluoride pollution soil and restorative procedure, the medicament include following composition by weight: 30-60 parts of calcium salt, 10-20 parts of ferriferous oxide, 10-20 parts of aluminum oxide, 20-40 parts of clay mineral.It is by being prepared after each component is ground and is uniformly mixed that stabilisation of the present invention, which repairs medicament, by be fluorinated after object contaminated soil is sufficiently mixed physics occurs, chemistry, materialization etc. reacts have many advantages, such as that short repairing efficiency, at low cost, broad spectrum activity, technological operation are simple to complete to repair.
Description
Technical field
The present invention relates to technical field of soil remediation, refer specifically to a kind of fluoride pollution soil stabilisation repair medicament and
Its restorative procedure.
Background technique
Fluorine (Fluorine, F) is a nonmetalloid being widely present in geochemistry, in organism and environment all
It is distributed, and exists mostly in the form of fluoride.As the essential trace elements of the human body, lacks fluorine and easily cause saprodontia or fluorosis of bone；
But if Funing tablet is excessively high, environment, plant and its domestic animal can all be polluted instead, especially to the mankind it is hereditary, immune,
The systems such as reproduction, bone, heart, thyroid gland, tooth, breathing, cognitive function, nerve have an impact, and its carcinogenesis, thin
Born of the same parents' apoptotic effect is more and more prominent.There are endemic fluorosis in multiple countries in the world, and wherein China's endemic fluorosis is distributed in more
A cities and counties, about 2.6 hundred million people of population being exposed in high concentration fluorine environment, referred to as maximum endemic fluorosis is more in the world
Send out area.
Fluoride in soil mostlys come from two aspects.One, essentially, in soil the size of fluorine content and
The conversion of existing forms is the result of nature GEOLOGICAL AND GEOCHEMICAL effect；Two, due to the fast development of fluoride industry, refining
A large amount of fluorine-containing wastes can be discharged during the enterprise operations such as lead, steel and iron manufacturing, fluorination work, these fluorine-containing wastes enter nature
It, can be directly or indirectly to soil after environment.If fluorine content is excessively high in soil, fluoride pollution can pass through the water environments such as underground water
Lead to fluorine poisoning after food chain is transmitted to plant, animal, human body.
The recovery technique about fluoride pollution soil only has the invention of number of patent application 201310712693.2 public at present
Chemistry-the plant combined repairing method for having opened a kind of fluorides combined pollution place soil, i.e., gone by dystopy elution technique
Except pollutants such as fluoride, polycyclic aromatic hydrocarbons in soil, elution while, is also connected by the way of ultrasound-enhanced and heating treatment
Continuous synergy.The problems such as this method needs secondary treatment there are equipment investment height, operating cost height, leacheate.
And it is directed to inorganic matter contaminated soil, the recovery technique of the most commonly used and most suitable engineering construction is curing/stabilizing
Technology, the technology are the addition curing/stabilizing medicaments into contaminated soil, make it that physics occur with pollution medium, pollutant, change
Contaminated soil sealing is the solidified body with hyposmosis coefficient of structural integrity by the effects of, or by being converted to of pollutant
Property torpescence form is learned, pollutant is reduced and migrates and spread in the environment.Such as number of patent application is 201710202560.9
A kind of reparation medicament for repairing As, Cr contaminated soil simultaneously of disclosure of the invention, it is containing 25-85 parts of inorganic molysite, clay inorganic
15-75 parts of mineral, 10-30 parts of silica crystalline agent, 10-30 parts of magnesium based compound and 25-80 parts of sulfide；Number of patent application
A kind of stabilisation reparation medicament for chromium-polluted soil is provided for the invention of 201710400553.X, main component is iron
Powder, wheat bran, organic fertilizer, sludge and ferrous salt；Number of patent application provides a kind of reparation for 201710477926.3 invention
The method of mercury contaminated soil, main points be taken from from a wealth of sources, cheap raw material converter slag, thermal power plant's flyash,
The materials such as montmorillonite carry out sour modification, heat modification and nano modification processing to them respectively, obtain three kinds of reparation medicaments, then will
Above-mentioned three kinds any two kinds repaired in medicament or whole, are incorporated into mercury contaminated soil and reparation can be completed.
More than comprehensive analysis it can be found that existing curing/stabilizing technology reparation is all metal class inorganic pollution,
But without a kind of curing/stabilizing technology for being directed to fluoride pollution.As country is to soil environment protection and pollution control
Attention, refining lead, steel and iron manufacturing, the fluorination industrial sites such as work have had been found that therefore the soil of fluoride pollution develops a kind of energy
Medicament enough is repaired suitable for the stabilisation of fluoride pollution soil, has become a technical problem to be solved urgently.
In view of this, the present invention is specifically proposed.
Summary of the invention
The object of the present invention is to provide a kind of stabilisations of fluoride pollution soil to repair medicament and restorative procedure, fills up mesh
The blank of preceding fluoride pollution soil stabilization processing technique.
The purpose of the invention is achieved by the following technical solution:
A kind of stabilisation reparation medicament of fluoride pollution soil, the parts by weight formula for repairing medicament are as follows:
As a further improvement of the present invention, the calcium salt is calcium chloride, calcium nitrate, calcium sulfate, calcium bicarbonate, hydrogen sulfate
The mixing of any one substance or two or more any substance in calcium, calcium citrate, calcium acetate and calcium benzoate
Object.
As a further improvement of the present invention, the ferriferous oxide is in ferrous oxide, iron oxide and ferroso-ferric oxide
The mixture of any one substance or two or more any substance.
As a further improvement of the present invention, the aluminum oxide is aluminium oxide.
As a further improvement of the present invention, the clay mineral is sepiolite, attapulgite, zeolite, montmorillonite, swelling
The mixture of soil, diatomite and any one substance or two or more any substance in kaolin.
Further, the concrete configuration method for repairing medicament are as follows:
Calcium salt, ferriferous oxide, aluminum oxide and clay mineral are respectively crushed into granularity and are not less than 100 mesh powders,
The powder of calcium salt, ferriferous oxide, aluminum oxide and clay mineral this is obtained after mixing according to a certain percentage simultaneously to repair
Multiple medicament.
Further, the present invention also provides a kind of restorative procedures of fluoride pollution soil, comprising:
(1) excavate be fluorinated object contaminated soil and be transported to cure process place etc. it is to be processed；
(2) it is banked up after soil to be processed being crushed and sieved in disposal field in heaps；
(3) volume of postposition heap soil is sieved in measurement, and the quality of soil to be processed is calculated according to soil density；
(4) the conventional soil root system such as content of fluoride and pH value, moisture content in soil to be processed is detected；
(5) additive amount of medicament is determined according to the parameter detected in the quality of soil to be processed and step (4), and is configured such as
Stabilisation described in claim 1 repairs medicament；
(6) soil to be processed medicament is repaired with configured stabilisation to be sufficiently mixed；
(7) soil after repairing medicament to mixing stabilization is conserved to ensure that medicament is sufficiently reacted with soil；
(8) it tests to the soil after maintenance, then return step (5), inspection qualification then carry out step to disqualified upon inspection
(9)；
(9) soil after maintenance is handled.
As a further improvement of the present invention, it in step (5), according to fluoride pollution degree, stabilizes and repairs medicament
Additive amount be soil quality 5%-20%.
As a further improvement of the present invention, in step (7), the moisture content of soil should be maintained in maintenance processes
40%-50%, curing time are 1-3 days.
As a further improvement of the present invention, processing described in step (9) refers to the soil for being up to and repairing target call
Carry out live backfill or outward transport disposition.
Compared with prior art, the present invention have the following advantages that and the utility model has the advantages that
(1) present invention has filled up the blank of fluoride pollution soil stabilization processing technique；
(2) raw material of the present invention is green raw material environmental-friendly, low in cost, that property is stable, and preparation method is simple
Single easy, repair process is quick, and repairing effect is obvious；
(3) raw material of the present invention selects scientific and reasonable, effect that every kind of raw material has its specific the reparation of fluoride:
1) calcium salt can make fluorine ion generate calcium fluoride crystal precipitating, and reaction principle is as follows:
Ca2++2F-→CaF2↓
Calcium salt in the present invention includes organic calcium and two kinds of inorganic calcium, and wherein inorganic calcium calcium content is higher, and organic calcium is more
It is easy to be utilized by the microbial degradation in soil, if two kinds of calcium salts are used in combination, more longlasting can more efficiently play calcium
To the fixed effect of fluorine ion；
2) the strongest A type hydroxyl of alkalinity or hydration base on ferriferous oxide and aluminum oxide surface and central metallic ions coordination
Ligand exchange can occur with fluorine ion, to adsorb fluorine ion, reaction principle is as follows:
[H2O-Fe-OH]0+F-→[H2O-Fe-F]0+OH-
[HO-Fe-OH]-+F-→[HO-Fe-F]-+OH-
3) clay mineral is natural non-metallic mineral products widely distributed in a kind of environment, and structure sheaf is electrically charged, specific surface
Product it is relatively large, mainly pass through absorption, complexation reaction, coprecipitation reaction the effects of, reduce soil in various ions concentration with
Activity；Simultaneously clay mineral it is cheap, it is easy to operate, quick, not malleable soil texture, do not destroy ecological environment of soil, and
The self-purification capacity of soil can be enhanced.
Specific embodiment
Technical solution of the present invention is described in further detail With reference to embodiment, but implementation of the invention
Mode is without being limited thereto.
Fluoride pollution soil in the embodiment of the present invention is derived from Shandong Province's electrolytic aluminium factory, and fluoride pollution soil is repaired
Complicated target uses leaching standard, and leaching method selects " solid waste Leaching leaching method level shakes method " (HJ/T 557-
2010), leaching concentration executes IV class standard in " groundwater quality standard " (GB/T 14848-2017), and specific target of repairing is
Fluoride leaching concentration≤2mg/L.
It is as shown in the table for the fluoride leaching concentration of examination soil through detecting.
| Project | Sample 1 | Sample 2 | Sample 3 |
| Fluoride leaches (mg/L) | 3.26 | 50.41 | 8.67 |
Embodiment 1:
It chooses sample 1 to be tested, will be less than for being ground to partial size after examination soil sieving removal stone therein and impurity
2mm。
For the pollution level of this project, repairs medicament and is prepared according to the following formulation with ratio:
| Ingredient | Parts by weight (part) |
| Calcium nitrate | 30 |
| Iron oxide | 20 |
| Aluminium oxide | 10 |
| Sepiolite | 20 |
By prepared reparation medicament adding than being polluted with 1kg with 5% and 10% (pharmacy quality/soil quality) respectively
After soil is uniformly mixed, adds water to moisture content and reach 40%, maintenance is detected after 1 day.
Embodiment 2:
It chooses sample 2 to be tested, will be less than for being ground to partial size after examination soil sieving removal stone therein and impurity
2mm。
The present embodiment is substantially the same manner as Example 1, and difference is that the parts by weight of substance in formula are different, for this
The pollution level of project is repaired medicament and is prepared according to the following formulation with ratio:
| Ingredient | Parts by weight (part) |
| Calcium chloride | 40 |
| Calcium citrate | 20 |
| Ferroso-ferric oxide | 20 |
| Aluminium oxide | 20 |
| Attapulgite | 30 |
Prepared reparation medicament is more dirty than with 1kg with adding for 10% and 20% (pharmacy quality/soil quality) respectively
After dye soil is uniformly mixed, adds water to moisture content and reach 50%, maintenance is detected after 3 days.
Embodiment 3:
It chooses sample 3 to be tested, will be less than for being ground to partial size after examination soil sieving removal stone therein and impurity
2mm。
The present embodiment is substantially the same manner as Example 1, and difference is that the parts by weight of substance in formula are different, for this
The pollution level of project is repaired medicament and is prepared according to the following formulation with ratio:
| Ingredient | Parts by weight (part) |
| Calcium sulfate | 30 |
| Calcium acetate | 10 |
| Ferrous oxide | 20 |
| Aluminium oxide | 10 |
| Bentonite | 30 |
Prepared reparation medicament is added and polluted than (pharmacy quality/soil quality) and 1kg with 5% and 10% respectively
After soil is uniformly mixed, adds water to moisture content and reach 40%, maintenance is detected after 2 days.
The testing result of embodiment 1-3 is as shown in the table:
Embodiment described above is only the preferred embodiment for absolutely proving the present invention and being lifted, protection scope of the present invention
It is without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, of the invention
Within protection scope.Protection scope of the present invention is subject to claims.
Claims (9)
1. a kind of stabilisation of fluoride pollution soil repairs medicament, it is characterised in that: the parts by weight for repairing medicament are matched
Side are as follows:
Calcium salt, ferriferous oxide, aluminum oxide and clay mineral are respectively crushed into granularity and are not less than 100 mesh powders, according to
The powder of calcium salt, ferriferous oxide, aluminum oxide and clay mineral is obtained the stabilisation reparation by aforementioned proportion after mixing
Medicament.
2. the stabilisation of fluoride pollution soil as described in claim 1 repairs medicament, it is characterised in that: the calcium salt is chlorine
Change any one object in calcium, calcium nitrate, calcium sulfate, calcium bicarbonate, calcium bisulfate, calcium citrate, calcium acetate and calcium benzoate
The mixture of matter or two or more any substance.
3. the stabilisation of fluoride pollution soil as described in claim 1 repairs medicament, it is characterised in that: the ferriferous oxide
For the mixing of any one substance or two or more any substance in ferrous oxide, iron oxide and ferroso-ferric oxide
Object.
4. the stabilisation of fluoride pollution soil as described in claim 1 repairs medicament, it is characterised in that: the aluminum oxide
For aluminium oxide.
5. the stabilisation of fluoride pollution soil as described in claim 1 repairs medicament, it is characterised in that: the clay mineral
For any one substance or any two in sepiolite, attapulgite, zeolite, montmorillonite, bentonite, diatomite and kaolin
The mixture of kind or two or more substances.
6. a kind of restorative procedure of fluoride pollution soil, it is characterised in that: the following steps are included:
(1) excavate be fluorinated object contaminated soil and be transported to cure process place etc. it is to be processed；
(2) it is banked up after soil to be processed being crushed and sieved in disposal field in heaps；
(3) volume of postposition heap soil is sieved in measurement, and the quality of soil to be processed is calculated according to soil density；
(4) the conventional soil root system such as content of fluoride and pH value, moisture content in soil to be processed is detected；
(5) additive amount of medicament is determined according to the parameter detected in the quality of soil to be processed and step (4),
And it configures as described in claim 1 stabilize and repairs medicament；
(6) soil to be processed medicament is repaired with configured stabilisation to be sufficiently mixed；
(7) soil after repairing medicament to mixing stabilization is conserved to ensure that medicament is sufficiently reacted with soil；
(8) it tests to the soil after maintenance, then return step (5), inspection qualification then carry out step (9) to disqualified upon inspection；
(9) soil after maintenance is handled.
7. the restorative procedure of fluoride pollution soil as claimed in claim 6, it is characterised in that: in the step (5), according to
Fluoride pollution degree stabilizes the 5%-20% for repairing the additive amount of medicament as soil quality.
8. the restorative procedure of fluoride pollution soil as claimed in claim 6, it is characterised in that: in the step (7), maintenance
The moisture content of soil should be maintained at 40%-50% in the process, and curing time is 1-3 days.
9. the restorative procedure of fluoride pollution soil as claimed in claim 6, which is characterized in that in the step (9), processing
Refer to that being up to the soil for repairing target call carries out live backfill or outward transport disposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910030237.7A CN109731901B (en) | 2019-01-14 | 2019-01-14 | Stabilizing and repairing agent and repairing method for fluoride-contaminated soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910030237.7A CN109731901B (en) | 2019-01-14 | 2019-01-14 | Stabilizing and repairing agent and repairing method for fluoride-contaminated soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109731901A true CN109731901A (en) | 2019-05-10 |
| CN109731901B CN109731901B (en) | 2021-10-19 |
Family
ID=66364611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910030237.7A Active CN109731901B (en) | 2019-01-14 | 2019-01-14 | Stabilizing and repairing agent and repairing method for fluoride-contaminated soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109731901B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110369488A (en) * | 2019-07-30 | 2019-10-25 | 上海格林曼环境技术有限公司 | A kind of preparation and application for the medicament that the stabilisation for mercury contaminated soil is repaired |
| CN110408401A (en) * | 2019-07-02 | 2019-11-05 | 东南大学 | It is a kind of for repairing the curing agent and its application method of fluoride pollution soil |
| CN110560473A (en) * | 2019-08-21 | 2019-12-13 | 生态环境部环境规划院 | Stabilization method for soil fluoride and arsenic |
| CN110976506A (en) * | 2019-12-20 | 2020-04-10 | 纳琦绿能工程有限公司 | Curing and stabilizing repairing agent for polluted soil and repairing method thereof |
| CN111676023A (en) * | 2020-05-27 | 2020-09-18 | 永清环保股份有限公司 | Semi-wrapping stabilizing material and preparation method and use method thereof |
| CN112044945A (en) * | 2020-08-27 | 2020-12-08 | 河南川萍环保科技有限公司 | Stabilizing and repairing agent and repairing method for fluoride-contaminated soil |
| CN113308255A (en) * | 2021-07-28 | 2021-08-27 | 北京高能时代环境技术股份有限公司 | Long-acting repairing agent for fluoride-contaminated soil, application and repairing method |
| CN115044377A (en) * | 2022-05-27 | 2022-09-13 | 湖北科技学院 | Medicament and method for reducing fluorine bioavailability of southern acidic tea garden soil |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009022844A (en) * | 2007-07-18 | 2009-02-05 | Sumikon Serutekku Kk | Purification method of fluorine contaminated soil |
| CN102176983A (en) * | 2008-10-10 | 2011-09-07 | 独立行政法人国立高等专门学校机构 | Fluorine insolubilizing agent, gypsum with elution of fluorine contained therein being reduced, and method for treating soil contaminated with fluirine |
| CN104893731A (en) * | 2015-05-27 | 2015-09-09 | 成都易创思生物科技有限公司 | Biologic additive |
| CN105419804A (en) * | 2015-10-30 | 2016-03-23 | 深圳市铁汉生态环境股份有限公司 | Repair agent for fluorine polluted soil and repair method for fluorine polluted soil |
| CN107649498A (en) * | 2017-08-21 | 2018-02-02 | 浙江师范大学行知学院 | A kind of method that Activated Sludge Modification clay mineral suppresses plant absorption Fluoride In Soils |
| CN108841388A (en) * | 2018-07-05 | 2018-11-20 | 北京泷涛环境修复有限公司 | It is a kind of for the medicament of cobalt pollution soil remediation, preparation method and restorative procedure |
-
2019
- 2019-01-14 CN CN201910030237.7A patent/CN109731901B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009022844A (en) * | 2007-07-18 | 2009-02-05 | Sumikon Serutekku Kk | Purification method of fluorine contaminated soil |
| CN102176983A (en) * | 2008-10-10 | 2011-09-07 | 独立行政法人国立高等专门学校机构 | Fluorine insolubilizing agent, gypsum with elution of fluorine contained therein being reduced, and method for treating soil contaminated with fluirine |
| CN104893731A (en) * | 2015-05-27 | 2015-09-09 | 成都易创思生物科技有限公司 | Biologic additive |
| CN105419804A (en) * | 2015-10-30 | 2016-03-23 | 深圳市铁汉生态环境股份有限公司 | Repair agent for fluorine polluted soil and repair method for fluorine polluted soil |
| CN107649498A (en) * | 2017-08-21 | 2018-02-02 | 浙江师范大学行知学院 | A kind of method that Activated Sludge Modification clay mineral suppresses plant absorption Fluoride In Soils |
| CN108841388A (en) * | 2018-07-05 | 2018-11-20 | 北京泷涛环境修复有限公司 | It is a kind of for the medicament of cobalt pollution soil remediation, preparation method and restorative procedure |
Non-Patent Citations (3)
| Title |
|---|
| 《中国冶金百科全书》总编辑委员会《安全环保》卷编辑委员会: "《中国冶金百科全书 安全环保》", 28 February 2000, 冶金工业出版社 * |
| 刘征原 郝瑞彬: "氟的环境地球化学特征及生物效应", 《唐山师范学院学报》 * |
| 陈昆柏等: "《污染场地调查与修复》", 31 July 2017 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408401A (en) * | 2019-07-02 | 2019-11-05 | 东南大学 | It is a kind of for repairing the curing agent and its application method of fluoride pollution soil |
| CN110369488A (en) * | 2019-07-30 | 2019-10-25 | 上海格林曼环境技术有限公司 | A kind of preparation and application for the medicament that the stabilisation for mercury contaminated soil is repaired |
| CN110560473A (en) * | 2019-08-21 | 2019-12-13 | 生态环境部环境规划院 | Stabilization method for soil fluoride and arsenic |
| US11179758B2 (en) | 2019-08-21 | 2021-11-23 | Chinese Academy Of Environmental Planning | Method for stabilizing fluorides and arsenic in soil |
| CN110976506A (en) * | 2019-12-20 | 2020-04-10 | 纳琦绿能工程有限公司 | Curing and stabilizing repairing agent for polluted soil and repairing method thereof |
| CN111676023A (en) * | 2020-05-27 | 2020-09-18 | 永清环保股份有限公司 | Semi-wrapping stabilizing material and preparation method and use method thereof |
| CN112044945A (en) * | 2020-08-27 | 2020-12-08 | 河南川萍环保科技有限公司 | Stabilizing and repairing agent and repairing method for fluoride-contaminated soil |
| CN113308255A (en) * | 2021-07-28 | 2021-08-27 | 北京高能时代环境技术股份有限公司 | Long-acting repairing agent for fluoride-contaminated soil, application and repairing method |
| CN115044377A (en) * | 2022-05-27 | 2022-09-13 | 湖北科技学院 | Medicament and method for reducing fluorine bioavailability of southern acidic tea garden soil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109731901B (en) | 2021-10-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109731901A (en) | A kind of the stabilisation reparation medicament and restorative procedure of fluoride pollution soil | |
| CN106147778A (en) | Passivator, preparation method and applications for repairing heavy metal in soil combined pollution | |
| CN106244163A (en) | The reparation medicament of Compound Heavy Metals soil and methods for making and using same thereof | |
| CN109054848A (en) | A kind of heavy-metal contaminated soil renovation agent and preparation method thereof and application method | |
| CN104650921B (en) | It is a kind of to reduce Cadmium in Soil, the renovation agent of lead bio-available Zn concentration and its application method and application | |
| CN103881727A (en) | Stable curing agent of repairing heavy metal and toxic organic matter combined polluted soil and using method of curing agent | |
| CN108176707A (en) | Lead-cadmium composite polluted soil in-situ passivator and preparation method thereof | |
| CN105950180A (en) | Remediation agent for soil polluted by heavy metals and remediation method thereof | |
| CN107789787A (en) | For repairing the stabilization agent and application method of arsenic-containing waste residue | |
| CN108059958B (en) | Antimony-polluted site soil stabilization restoration agent and preparation method thereof | |
| CN101708499B (en) | Method for jointly stabilizing fly ash and arsenic-containing waste | |
| CN106978184B (en) | Curing agent for composite heavy metal polluted soil and preparation and application methods thereof | |
| CN104194795A (en) | Novel in-situ passivation modifier and preparing method thereof | |
| CN104162533A (en) | Harmless processing method of wastes containing heavy metals | |
| CN106623379A (en) | Resource recycling method of construction waste and repairing agent for heavy-metal-polluted soil | |
| CN112795383A (en) | Multiple heavy metal compound contaminated soil remediation agent and application method thereof | |
| CN104927871A (en) | Heavy metal stabilizer and method for stabilizing soil heavy metal through same | |
| CN110317611A (en) | A kind of metal oxide/biology carbon composite, preparation method and its application | |
| CN110238185A (en) | A kind of repair materials and its restorative procedure of heavy-metal contaminated soil | |
| CN110184067A (en) | A kind of repairing polluted soil modifying agent and modification method | |
| Xiong et al. | Heavy metal remediation in sludge compost: Recent progress | |
| CN106947487B (en) | Modifier for composite heavy metal polluted soil and preparation and use methods thereof | |
| CN107021714B (en) | Curing agent for heavy metal contaminated soil and preparation and application methods thereof | |
| CN108359475A (en) | A kind of humic-acid kind heavy metal-polluted soil renovation agent and its preparation method and application | |
| Bituh et al. | Phosphogypsum and its potential use in Croatia: challenges and opportunities |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |