CN111100649A - Compound nano repairing agent for heavy metal contaminated soil and preparation method thereof - Google Patents
Compound nano repairing agent for heavy metal contaminated soil and preparation method thereof Download PDFInfo
- Publication number
- CN111100649A CN111100649A CN201911393515.1A CN201911393515A CN111100649A CN 111100649 A CN111100649 A CN 111100649A CN 201911393515 A CN201911393515 A CN 201911393515A CN 111100649 A CN111100649 A CN 111100649A
- Authority
- CN
- China
- Prior art keywords
- parts
- nano
- heavy metal
- lime
- biochar
- 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
- 239000002689 soil Substances 0.000 title claims abstract description 46
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 24
- 150000001875 compounds Chemical class 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 20
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 20
- 239000003738 black carbon Substances 0.000 claims abstract description 20
- 239000010881 fly ash Substances 0.000 claims abstract description 20
- 239000004571 lime Substances 0.000 claims abstract description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003756 stirring Methods 0.000 claims description 9
- 239000004677 Nylon Substances 0.000 claims description 6
- BPKGOZPBGXJDEP-UHFFFAOYSA-N [C].[Zn] Chemical compound [C].[Zn] BPKGOZPBGXJDEP-UHFFFAOYSA-N 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 10
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000002086 nanomaterial Substances 0.000 abstract description 4
- 230000005012 migration Effects 0.000 abstract description 2
- 238000013508 migration Methods 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 abstract description 2
- 229910052793 cadmium Inorganic materials 0.000 description 8
- 238000005067 remediation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 229910052804 chromium Inorganic materials 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000009616 inductively coupled plasma Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/08—Aluminium compounds, e.g. aluminium hydroxide
-
- 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
- C09K17/02—Soil-conditioning materials or soil-stabilising materials containing inorganic compounds only
- C09K17/06—Calcium compounds, e.g. lime
-
- 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
- C09K2109/00—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE pH regulation
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a compound nano repairing agent for heavy metal contaminated soil and a preparation method thereof, relating to the technical field of soil repair and comprising the following components in parts by weight: 50-60 parts of nano iron, 65-80 parts of nano titanium oxide, 35-45 parts of nano black carbon, 40-60 parts of biochar, 5-10 parts of lime and 10-15 parts of fly ash. By utilizing the characteristic that the nano material and the heavy metal are subjected to chemical reaction or surface adsorption on the heavy metal, various nano materials are added, so that the surface area is increased, the adsorption force is obviously enhanced, the heavy metal can be strongly adsorbed, and the migration and the conversion of the heavy metal in the soil are reduced.
Description
Technical Field
The invention relates to the technical field of soil remediation, in particular to a compound nano remediation agent for heavy metal contaminated soil and a preparation method thereof.
Background
With the development of modern industrialization and urbanization, heavy metal pollution in soil environment is increasingly caused by human activities. Heavy metal pollution in the soil environment can reduce the quality of agricultural products, and the products can bring potential harm to human health after being eaten. The harm of heavy metals to human bodies is mainly reflected in the difficulty in degrading the heavy metals. The organic compounds can reduce or eliminate harmfulness through self physical, chemical or biological purification in nature; heavy metals are rich and difficult to degrade in the environment, are concentrated by thousands of times under the action of biological amplification of a food chain, enter a human body, are difficult to naturally discharge or completely remove, and are generally irreversible in life.
Relevant statistics show that about 19.4 percent of cultivated lands in China are polluted by heavy metals such as cadmium, nickel, copper, mercury, arsenic, lead and the like, and the total area of the polluted farmlands is as high as 2.3 multiplied by 107hm 2. In heavy metal pollution, cadmium has strong mobility and high toxicity, is very easy to be absorbed and accumulated by crops, is one of the most toxic heavy metal elements in nature, nickel pollution does not vary a little, and heavy metal pollution, particularly cadmium-nickel pollution, in soil becomes a prominent environmental problem to be solved urgently. Cadmium and nickel pollution of farmland soil poses great threat to food safety production in China, and how to safely and effectively repair and utilize the polluted farmland soil becomes an environmental and social problem which needs to be solved urgently in China at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides a compound nano repairing agent for heavy metal contaminated soil, which comprises the following components in parts by weight: 50-60 parts of nano iron, 65-80 parts of nano titanium oxide, 35-45 parts of nano black carbon, 40-60 parts of biochar, 5-10 parts of lime and 10-15 parts of fly ash.
The technical effects are as follows: the compound nano repairing agent designed by the invention utilizes the characteristic that nano materials and heavy metals are subjected to chemical reaction or surface adsorption on the heavy metals, and various nano materials are added, so that the surface area is increased, and the adsorption force is obviously enhanced, thereby being capable of strongly adsorbing the heavy metals and reducing the migration and the conversion of the heavy metals in soil.
The technical scheme of the invention is further defined as follows:
the compound nano repairing agent for the heavy metal contaminated soil comprises the following components in parts by weight: 52 parts of nano iron, 70 parts of nano titanium oxide, 35 parts of nano black carbon, 55 parts of biochar, 7 parts of lime and 13 parts of fly ash.
The compound nano repairing agent for the heavy metal contaminated soil comprises the following components in parts by weight: 57 parts of nano iron, 73 parts of nano titanium oxide, 42 parts of nano black carbon, 50 parts of biochar, 5 parts of lime and 15 parts of fly ash.
The compound nano repairing agent for the heavy metal contaminated soil comprises the following components in parts by weight: 60 parts of nano iron, 65 parts of nano titanium oxide, 45 parts of nano black carbon, 42 parts of biochar, 10 parts of lime and 11 parts of fly ash.
The invention also aims to provide a preparation method of the compound nano repairing agent for the heavy metal contaminated soil, which comprises the steps of drying S1, lime and fly ash for 48 hours at the temperature of 115 ℃, and sieving the dried materials by a 1mm nylon sieve for later use; meanwhile, nano iron, nano titanium oxide, nano black carbon zinc and biochar are dried for 28 hours at the temperature of 80 ℃, and are sieved by a 1mm nylon sieve for later use;
s2, uniformly mixing the nano iron, the nano titanium oxide, the nano black carbon zinc and the biochar, wherein the stirring speed is 120r/min, and the stirring time is 80-110 min;
and S3, finally adding lime and fly ash, stirring at the speed of 110r/min for 150-160 min to obtain the product.
The invention has the beneficial effects that:
(1) according to the invention, nano iron is added, and metal chromium, arsenic and cadmium in soil are repaired through oxidation-reduction reaction, so that the repairing effect of the soil repairing agent is improved;
(2) according to the invention, the nanometer titanium oxide is added, so that chlorine-containing organic matters and heavy metals in soil can be removed;
(3) the nano black carbon is added, so that the pores are large, the nano black carbon has a strong adsorption effect on heavy metals in soil and has the same adsorption effect on organic matters;
(4) according to the invention, the biochar is added, so that the pH value of the soil is obviously increased; after the PH of the soil rises, the variable charges on the surface of the biochar are increased, the cation adsorption capacity is enhanced, meanwhile, the hydrogen ion concentration in the soil is reduced, the generation of heavy metal hydroxide and carbonate precipitation is promoted, the combination of heavy metals with organic matters, iron and manganese oxides and the like in the soil is firmer, and the mobility of the heavy metals is reduced; the active functional groups such as hydroxyl, carboxyl, carbonyl and the like on the surface of the biochar have the adsorption and fixation effects on various heavy metal ions.
Detailed Description
Example 1
The compound nano repairing agent for the heavy metal contaminated soil provided by the embodiment comprises the following components in kg by weight: 52kg of nano iron, 70kg of nano titanium oxide, 35kg of nano black carbon, 55kg of biochar, 7kg of lime and 13kg of fly ash.
Example 2
The compound nano repairing agent for the heavy metal contaminated soil provided by the embodiment comprises the following components in kg by weight: 57kg of nano iron, 73kg of nano titanium oxide, 42kg of nano black carbon, 50kg of biochar, 5kg of lime and 15kg of fly ash.
Example 3
The compound nano repairing agent for the heavy metal contaminated soil provided by the embodiment comprises the following components in kg by weight: 60kg of nano iron, 65kg of nano titanium oxide, 45kg of nano black carbon, 42kg of biochar, 10kg of lime and 11kg of fly ash.
Example 1-preparation of example 3 comprising
S1, drying lime and fly ash for 48 hours at 115 ℃, and sieving the dried lime and fly ash with a 1mm nylon sieve for later use; meanwhile, nano iron, nano titanium oxide, nano black carbon zinc and biochar are dried for 28 hours at the temperature of 80 ℃, and are sieved by a 1mm nylon sieve for later use;
s2, uniformly mixing the nano iron, the nano titanium oxide, the nano black carbon zinc and the biochar, wherein the stirring speed is 120r/min, and the stirring time is 110 min;
and S3, finally adding lime and fly ash, stirring at the speed of 110r/min for 155min to obtain the product.
The soil remediation agents prepared in the examples 1 to 3 are subjected to cadmium-contaminated soil remediation tests, and the concrete steps are as follows:
the field test is carried out on Li water from Nanjing City of Jiangsu province, the soil properties of different soil layer depths are shown in Table 1, the test crop is slow rape of April, the seeds are sowed in 2019 in 4 and 28 days, the seeds are harvested in 02 days of 6 months, the field test is divided into four groups, ① control groups are used, and no repairing agent or ② control group is used
Examples 1, ③ examples 2, ④ example 3, each set having a test area of 25m2。
Measuring the content of Cd and Cr in the plant sample by using an inductively coupled plasma mass spectrometer, which is shown in Table 2; soil samples are taken from each test group, the adsorption state of Cd and Cr in soil after the remediation agent is used is determined by a continuous extraction method, and the water-soluble state, exchangeable state and EDTA extraction state contents are mainly determined, and are shown in Table 3.
TABLE 1 soil Properties of different soil layers
TABLE 2 Cd, Cr content in plant samples
TABLE 3 adsorption morphology of Cd, Cr in soil
As can be seen from the comprehensive tables 2 and 3, the cadmium-nickel-polluted soil remediation agent has an excellent and remarkable effect on remediation of cadmium-nickel-polluted soil, and is an efficient compound soil remediation agent material.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.
Claims (5)
1. The compound nano repairing agent for the heavy metal contaminated soil is characterized by comprising the following components in parts by weight: 50-60 parts of nano iron, 65-80 parts of nano titanium oxide, 35-45 parts of nano black carbon, 40-60 parts of biochar, 5-10 parts of lime and 10-15 parts of fly ash.
2. The compound nano repairing agent for heavy metal contaminated soil according to claim 1, which is characterized by comprising the following components in parts by weight: 52 parts of nano iron, 70 parts of nano titanium oxide, 35 parts of nano black carbon, 55 parts of biochar, 7 parts of lime and 13 parts of fly ash.
3. The compound nano repairing agent for heavy metal contaminated soil according to claim 1, which is characterized by comprising the following components in parts by weight: 57 parts of nano iron, 73 parts of nano titanium oxide, 42 parts of nano black carbon, 50 parts of biochar, 5 parts of lime and 15 parts of fly ash.
4. The compound nano repairing agent for heavy metal contaminated soil according to claim 1, which is characterized by comprising the following components in parts by weight: 60 parts of nano iron, 65 parts of nano titanium oxide, 45 parts of nano black carbon, 42 parts of biochar, 10 parts of lime and 11 parts of fly ash.
5. The preparation method of the compound nano repairing agent for the heavy metal contaminated soil according to any one of claims 1 to 4, which is characterized by comprising the following steps: comprises that
S1, drying lime and fly ash for 48 hours at 115 ℃, and sieving the dried lime and fly ash with a 1mm nylon sieve for later use; meanwhile, nano iron, nano titanium oxide, nano black carbon zinc and biochar are dried for 28 hours at the temperature of 80 ℃, and are sieved by a 1mm nylon sieve for later use;
s2, uniformly mixing the nano iron, the nano titanium oxide, the nano black carbon zinc and the biochar, wherein the stirring speed is 120r/min, and the stirring time is 80-110 min;
and S3, finally adding lime and fly ash, stirring at the speed of 110r/min for 150-160 min to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393515.1A CN111100649A (en) | 2019-12-30 | 2019-12-30 | Compound nano repairing agent for heavy metal contaminated soil and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911393515.1A CN111100649A (en) | 2019-12-30 | 2019-12-30 | Compound nano repairing agent for heavy metal contaminated soil and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111100649A true CN111100649A (en) | 2020-05-05 |
Family
ID=70424373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911393515.1A Pending CN111100649A (en) | 2019-12-30 | 2019-12-30 | Compound nano repairing agent for heavy metal contaminated soil and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111100649A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626605A (en) * | 2013-10-23 | 2014-03-12 | 林凯 | Special rapeseed fertilizer and preparation method thereof |
| CN104194795A (en) * | 2014-06-10 | 2014-12-10 | 青岛华仁技术孵化器有限公司 | Novel in-situ passivation modifier and preparing method thereof |
| CN106675568A (en) * | 2016-12-15 | 2017-05-17 | 北京高能时代环境技术股份有限公司 | Passivator for repairing compound heavy metal polluted farmland and preparation and application thereof |
| CN107686402A (en) * | 2017-09-15 | 2018-02-13 | 佛山科学技术学院 | One boar charcoal base soil conditioner and preparation method thereof |
| CN108949180A (en) * | 2018-07-19 | 2018-12-07 | 盐城英贝吉环保科技有限公司 | A kind of cadmium nickel contamination soil-repairing agent and preparation method |
| CN110054370A (en) * | 2019-04-15 | 2019-07-26 | 广东开源环境科技有限公司 | A kind of river bottom mud solidification is stable to repair medicament and preparation method thereof |
-
2019
- 2019-12-30 CN CN201911393515.1A patent/CN111100649A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103626605A (en) * | 2013-10-23 | 2014-03-12 | 林凯 | Special rapeseed fertilizer and preparation method thereof |
| CN104194795A (en) * | 2014-06-10 | 2014-12-10 | 青岛华仁技术孵化器有限公司 | Novel in-situ passivation modifier and preparing method thereof |
| CN106675568A (en) * | 2016-12-15 | 2017-05-17 | 北京高能时代环境技术股份有限公司 | Passivator for repairing compound heavy metal polluted farmland and preparation and application thereof |
| CN107686402A (en) * | 2017-09-15 | 2018-02-13 | 佛山科学技术学院 | One boar charcoal base soil conditioner and preparation method thereof |
| CN108949180A (en) * | 2018-07-19 | 2018-12-07 | 盐城英贝吉环保科技有限公司 | A kind of cadmium nickel contamination soil-repairing agent and preparation method |
| CN110054370A (en) * | 2019-04-15 | 2019-07-26 | 广东开源环境科技有限公司 | A kind of river bottom mud solidification is stable to repair medicament and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中国环境科学学会: "《中国环境科学学会学术年会优秀论文集 2008 中》", vol. 1, 中国农业大学出版社, pages: 1104 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Effects of biochar on growth, and heavy metals accumulation of moso bamboo (Phyllostachy pubescens), soil physical properties, and heavy metals solubility in soil | |
| CN107115840B (en) | Carbon-based composite material for repairing arsenic-cadmium contaminated soil and application thereof | |
| CN103464101B (en) | A kind of method of repairing the plant giantreed recycling of heavy-metal contaminated soil | |
| CN108949180A (en) | A kind of cadmium nickel contamination soil-repairing agent and preparation method | |
| Cui et al. | Revitalizing coastal saline-alkali soil with biochar application for improved crop growth | |
| CN110003913B (en) | Heavy metal soil repairing agent based on magnesium oxide-montmorillonite composite material mixed biochar and repairing method | |
| CN111040771B (en) | Site-contaminated soil ex-situ remediation agent and application method thereof | |
| CN108276228A (en) | One kind being used for the fertilizer and preparation method thereof of Cr (VI) contaminated soil remediations and improvement | |
| CN110591728B (en) | Conditioner for mercury-polluted soil and preparation method thereof | |
| Zhou et al. | Effect of iron plaque and selenium on mercury uptake and translocation in rice seedlings grown in solution culture | |
| CN117063655B (en) | Method for preventing and controlling rice field submerged cultivation and cooperatively reducing cadmium in water flooding environment | |
| CN112547024A (en) | Magnetic carbon composite material for repairing heavy metal contaminated soil and preparation method thereof | |
| CN110885690B (en) | Stabilizer for in-situ remediation of soil heavy metal pollution and application thereof | |
| CN110639946B (en) | Method for reducing heavy metal cadmium in plants | |
| CN108929702A (en) | A kind of cadmium pollution combined soil renovation agent and preparation method | |
| CN112980448A (en) | Rice field soil conditioner and preparation method and application thereof | |
| CN111100649A (en) | Compound nano repairing agent for heavy metal contaminated soil and preparation method thereof | |
| CN112371716A (en) | Heavy metal contaminated soil remediation method and remediation agent thereof | |
| CN108517215B (en) | Acid soil heavy metal lead-cadmium in-situ passivator and preparation method and application thereof | |
| CN111922062A (en) | Method for removing heavy metals in soil by soil remediation agent Orient Green | |
| CN105969393A (en) | Heavy metal soil improvement agent and improvement method | |
| CN110746976A (en) | Soil remediation agent for passivating soil heavy metals and preparation method thereof | |
| CN110776919A (en) | Stabilizing material for heavy metal soil remediation and preparation method thereof | |
| CN110016345A (en) | A kind of steady arsenic soil passivator of drop cadmium and its application method | |
| CN109575925B (en) | Preparation method and application of multifunctional soil cadmium metal passivator |
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: 20200505 |