CN112390274A - Hyperstable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation - Google Patents

Hyperstable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation Download PDF

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CN112390274A
CN112390274A CN202011044094.4A CN202011044094A CN112390274A CN 112390274 A CN112390274 A CN 112390274A CN 202011044094 A CN202011044094 A CN 202011044094A CN 112390274 A CN112390274 A CN 112390274A
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nickel
mineralizer
hyperstable
calcium
ions
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CN112390274B (en
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孔祥贵
毛方琪
段昊泓
段雪
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Tsinghua University
Beijing University of Chemical Technology
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Tsinghua University
Beijing University of Chemical Technology
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/78—Compounds containing aluminium and two or more other elements, with the exception of oxygen and hydrogen
    • C01F7/784—Layered double hydroxide, e.g. comprising nitrate, sulfate or carbonate ions as intercalating anions
    • C01F7/785—Hydrotalcite
    • 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
    • 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
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The invention discloses an ultrastable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation. The hyperstable mineralizer is calcium-based hydrotalcite, calcium atoms in the hyperstable mineralizer form metal vacancies after being dissociated, and nickel ions can be anchored in crystal lattices of a calcium-based hydrotalcite layer plate in an isomorphous substitution or dissolution-reconstruction mode, so that the nickel ions in the wastewater and the soil can be quickly mineralized to form nickel-containing hydrotalcite with a more stable structure. Under the action of multiple chemical bonds, the stability of the hydrotalcite-like material is far superior to that of hydroxide and carbonate, so that nickel ions are difficult to dissociate, a path for transmitting the hydrotalcite-like material from soil to crops by virtue of root systems is cut off, and the hydrotalcite-like material shows excellent hyperstable mineralization characteristics. In addition, the calcium-based hydrotalcite has good selectivity due to the matching rule of the ionic radius, has good effect in-situ remediation of soil heavy metal pollution, is economic and environment-friendly, and has great application prospect.

Description

Hyperstable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation
Technical Field
The invention belongs to the technical field of soil pollution remediation, and particularly relates to an ultrastable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation.
Background
The citizen is the national base and the millet is the civil life. Grain safety is an important basis for national safety. However, heavy metal contaminated arable land is becoming more severe. The national soil pollution condition survey bulletin developed by the national environmental protection agency of China in 2014 shows that the national cultivated land environment quality is increasingly deteriorated, the national polluted soil accounts for 16.1%, the exceeding rate of the contaminated site of the cultivated land is more than 19.6%, wherein the exceeding rate of nickel pollution is 4.8%, and is second to cadmium pollution. According to statistics, the yield of the grains polluted by heavy metal in China is as high as 1500 million tons every year, the yield of the grains is reduced by 1000 million tons due to the heavy metal pollution, and the direct economic loss is more than 200 hundred million yuan.
The problem of heavy metal pollution of soil has attracted attention from various countries, and the treatment of heavy metal pollution of soil has become a major part of the work of China at present and in a period from now on.
At present, the repair technology of the heavy metal nickel polluted soil comprises a physical repair method, a biological repair method, a chemical repair method and the like. In-situ passivation is a recent trend. The method mainly comprises the steps of adding one or more passivation materials into the polluted soil, and reducing the activity of the pollutants in situ by changing the forms of the pollutants in the soil so as to reduce the absorption of crops to the pollutants and achieve the aim of safe utilization. The existing passivators are made of inorganic materials, organic materials, microorganisms or multi-material composites. However, due to the complexity of soil composition and the diversity of pollution sources, in the soil polluted by heavy metals, not only a plurality of heavy metal ions, but also a large amount of other ions which are harmless to the soil and even beneficial to the soil exist, and the currently common soil heavy metal passivators such as organic carbon, hydroxyapatite, attapulgite and the like have single active components, mainly adopt physical adsorption and electrostatic attraction adsorption in the action process, have weak interaction force, poor selectivity to the heavy metal ions and easy desorption, so that the consumption of the passivator is increased and frequently used, the use cost and the repair difficulty are increased, and the passivator becomes a bottleneck restricting the development of the heavy metal in-situ passivation technology.
Therefore, the construction of a novel passivator with strong binding force, high selectivity, economy and environmental protection becomes an urgent problem to be solved in the current nickel pollution remediation work.
Disclosure of Invention
The invention provides an ultra-stable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation. The hyperstable mineralizer is calcium-based hydrotalcite and has very high activity, wherein calcium atoms form metal vacancies after being dissociated, nickel ions can be anchored in crystal lattices of a calcium-based hydrotalcite laminate in a isomorphous substitution or dissolution-reconstruction mode to construct a nickel-containing hydrotalcite material, so that the nickel ions in the wastewater and the soil can be mineralized quickly to form hydrotalcite with a more stable structure. Under the action of multiple chemical bonds, the solubility product of the hydrotalcite-like material is tens of orders of magnitude smaller than the solubility product constant of corresponding hydroxide or carbonate, and the stability of the hydrotalcite-like material is far higher than that of the hydroxide and the carbonate, so that nickel ions are difficult to dissociate, a path for transmitting the nickel ions from soil to crops by virtue of a root system is cut off, and the hydrotalcite-like material shows excellent hyperstable mineralization characteristic. In addition, the calcium-based hydrotalcite has good selectivity due to the matching rule of the ionic radius, has good effect in-situ remediation of soil heavy metal pollution, is economic and environment-friendly, and has great application prospect.
The treatment method of nickel-containing wastewater comprises the following steps: adding the hyperstable mineralizer into the nickel-containing wastewater, wherein the mass ratio of the hyperstable mineralizer to nickel ions is 1.5-35:1, regulating and controlling the pH of the mixed solution to be more than 3.5, and shaking for 5-120 minutes at room temperature to remove nickel in the solution.
The method for repairing the nickel-polluted soil comprises the following steps: before the crops are cultivated in the nickel-polluted soil, firstly ploughing the soil with the surface of 1-25cm, spraying the hyperstable mineralizer slurry according to the using amount of 100 plus materials and 250 kg/mu to ensure that the hyperstable mineralizer is fully contacted with the soil, wherein the mass concentration of the hyperstable mineralizer slurry is 10-30%, then spraying water for moisturizing to ensure that the water content of the soil is kept at 40-70% of the maximum water holding capacity, and normally planting after 20 days.
The hyperstable mineralizer is calcium-based hydrotalcite.
The divalent metal ions on the laminate of the calcium-based hydrotalcite are calcium ions.
The trivalent metal ions on the laminate of the calcium-based hydrotalcite are one or two of iron ions and aluminum ions.
The divalent metal ions on the laminate of the calcium-based hydrotalcite are calcium ions and simultaneously contain one or two of zinc ions and magnesium ions.
The invention has the beneficial effects that:
(1) the calcium-based hydrotalcite has the advantages of wide raw material source, low price, environmental protection, simple preparation process and high efficiency. Lays a foundation for the rapid batch preparation of the material.
(2) In the calcium-based hyperstable mineralizer, different metal atoms are uniformly dispersed in the material, and a closely-arranged octahedral configuration is formed in a mode of sharing hydroxyl. When the hydrotalcite-like compound acts with nickel ions, the nickel ions can be anchored in crystal lattices of the hydrotalcite laminate in an isomorphous substitution mode to form nickel-containing hydrotalcite-like compound, so that the nickel ions are mineralized. Different from the conventional passivation material, the nickel is removed by the calcium-based hyperstable mineralizer through isomorphous substitution and enters the crystal lattice of the laminate, so that the hyperstable mineralizer has high removal amount and high removal speed on heavy metal ions.
(3) The other ions need to be similar to the radius of divalent ions in the hyperstable mineralizer to be possible to generate isomorphous substitution, so the method has very good selectivity in soil remediation.
(4) The super-stable mineralizer can be promoted to rapidly contact with heavy metals in the soil to act by spraying or broadcasting the slurry after ploughing in the soil treatment process, so that the time is saved.
Drawings
FIG. 1 is an XRD pattern of the ultra-stable mineralizer for calcium-aluminum hydrotalcite used in example 1.
FIG. 2 is an XRD pattern of the product obtained after nickel ions are removed by the calcium-aluminum hydrotalcite hyperstable mineralizer of example 1.
Detailed Description
The present invention is further illustrated by the following specific examples in order to better understand the operation of the present invention for the relevant persons, but the scope of the present invention is not limited thereto.
Example 1:
0.1g sulfate radical intercalated calcium aluminum hydrotalcite (Ca) is weighed2Al-SO4LDH, FIG. 1) as hyperstable mineralizer into a 1L beaker, 250ml Ni-containing2+In which Ni is2+Was magnetically stirred at room temperature for 10 minutes at a concentration of 240mg/L, and then the upper layer solution was collected, filtered through a 0.22 μm filtration membrane, and Ni was measured by ICP-MS2+The concentration of (c). The result shows that the removal of nickel by the calcium-aluminum hydrotalcite hyperstable mineralizer reaches more than 99 percent within 10 minutes, and extremely high efficiency is displayed. XRD detection is carried out on the obtained product after centrifugation (figure 2), and the result shows that the obtained precipitate is nickel-aluminum hydrotalcite, and the nickel ions are anchored in the crystal lattice of the hydrotalcite laminate and are converted into a super-stable structure state.
Example 2:
a soil sample polluted by nickel is taken from a polluted land, according to the national standard GB-15618-plus 2008, after the nickel in the soil is detected to exceed the risk screening value by 35 times, 1000g of the soil sample and 20g of a carbonate intercalated calcium-magnesium-iron hydrotalcite (CaMgFe-CO3-LDH) super-stable mineralizer are fully mixed in a 1L beaker, 500ml of deionized water is added and then naturally placed, and the biological effective state of the soil sample is detected by adopting a CaCl2 method after sampling at intervals. After 7 days, the content of the nickel in the effective state is reduced from 0.376mg/kg to 0.043mg/kg, and the reduction range reaches 88.6 percent; after 14 days of repair, the content of the nickel in an effective state is reduced to 0.022mg/kg, and the reduction amplitude is 94.1%; after 28 days, the content of nickel in an effective state is 0.017mg/kg, which is reduced by 95.5 percent. The data show that the calcium-magnesium-iron hydrotalcite hyperstable mineralizer can greatly reduce the effective state content of nickel in soil in a short time and shows excellent passivation performance.

Claims (6)

1. A treatment method of nickel-containing wastewater is characterized by comprising the following specific steps: adding the hyperstable mineralizer into the nickel-containing wastewater, wherein the mass ratio of the hyperstable mineralizer to nickel ions is 1.5-35:1, regulating and controlling the pH of the mixed solution to be more than 3.5, and shaking for 5-120 minutes at room temperature to remove nickel in the solution.
2. The method for repairing the nickel-polluted soil is characterized by comprising the following specific steps: before the crops are cultivated in the nickel-polluted soil, firstly ploughing the soil with the surface of 1-25cm, spraying the hyperstable mineralizer slurry according to the using amount of 100 plus materials and 250 kg/mu to ensure that the hyperstable mineralizer is fully contacted with the soil, wherein the mass concentration of the hyperstable mineralizer slurry is 10-30%, then spraying water for moisturizing to ensure that the water content of the soil is kept at 40-70% of the maximum water holding capacity, and normally planting after 20 days.
3. The method according to claim 1 or 2, characterized in that the hyperstable mineralizer is calcium-based hydrotalcite.
4. The method according to claim 3, wherein the divalent metal ions on the layered plate of the calcium-based hydrotalcite are calcium ions.
5. The method according to claim 3, wherein the trivalent metal ions on the laminate of the calcium-based hydrotalcite are one or both of iron ions and aluminum ions.
6. The method according to claim 3, wherein the divalent metal ions in the layered plate of the calcium-based hydrotalcite are calcium ions and further contain one or both of zinc ions and magnesium ions.
CN202011044094.4A 2020-09-28 2020-09-28 Hyperstable mineralizer for treating nickel pollution and application thereof in nickel-containing wastewater treatment and nickel-polluted soil remediation Active CN112390274B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113233569A (en) * 2021-04-17 2021-08-10 北京化工大学 Method for quickly removing manganese ions in wastewater and application of manganese-containing product in precious metal recovery
CN113772778A (en) * 2021-09-17 2021-12-10 北京化工大学 Treatment method for heavy metal ion polluted acidified soil and acidic wastewater
CN114516651A (en) * 2022-03-28 2022-05-20 北京化工大学 Calcium-aluminum hydrotalcite with 3D structure and preparation method and application thereof
CN115627172A (en) * 2022-10-26 2023-01-20 湖南农业大学 Compound conditioner for medium and light cadmium-polluted soil and application

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104962292A (en) * 2015-05-23 2015-10-07 成都科衡环保技术有限公司 Mineralizer used for processing soil heavy metal ions, and synthetic method thereof
CN105107837A (en) * 2015-09-14 2015-12-02 江苏隆昌化工有限公司 Stabilizing restoration method for heavy-metal contaminated soil
US20160107210A1 (en) * 2014-10-17 2016-04-21 Redox Technology Group Llc Method for treating soil and groundwater containing heavy metals including nickel
CN105542775A (en) * 2015-12-18 2016-05-04 南京大学 Passivating agent for weakly acidic cadmium contaminated soil and application thereof
CN107312543A (en) * 2017-07-06 2017-11-03 江苏隆昌化工有限公司 A kind of heavy metal polluted soil of farmland repairs the preparation method of mineralizer
CN111575012A (en) * 2020-05-22 2020-08-25 苏州市相润土壤修复技术研究院有限公司 Composite material for passivating soil heavy metal nickel and preparation and application methods thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160107210A1 (en) * 2014-10-17 2016-04-21 Redox Technology Group Llc Method for treating soil and groundwater containing heavy metals including nickel
CN104962292A (en) * 2015-05-23 2015-10-07 成都科衡环保技术有限公司 Mineralizer used for processing soil heavy metal ions, and synthetic method thereof
CN105107837A (en) * 2015-09-14 2015-12-02 江苏隆昌化工有限公司 Stabilizing restoration method for heavy-metal contaminated soil
CN105542775A (en) * 2015-12-18 2016-05-04 南京大学 Passivating agent for weakly acidic cadmium contaminated soil and application thereof
CN107312543A (en) * 2017-07-06 2017-11-03 江苏隆昌化工有限公司 A kind of heavy metal polluted soil of farmland repairs the preparation method of mineralizer
CN111575012A (en) * 2020-05-22 2020-08-25 苏州市相润土壤修复技术研究院有限公司 Composite material for passivating soil heavy metal nickel and preparation and application methods thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JADERSON LOPES MILAGRES ET AL.: "Preparation and evaluation of the Ca-Al layered double hydroxide for removal of copper(II), nickel(II), zinc(II), chromium(VI) and phosphate from aqueous solutions", 《JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113233569A (en) * 2021-04-17 2021-08-10 北京化工大学 Method for quickly removing manganese ions in wastewater and application of manganese-containing product in precious metal recovery
CN113772778A (en) * 2021-09-17 2021-12-10 北京化工大学 Treatment method for heavy metal ion polluted acidified soil and acidic wastewater
CN114516651A (en) * 2022-03-28 2022-05-20 北京化工大学 Calcium-aluminum hydrotalcite with 3D structure and preparation method and application thereof
CN115627172A (en) * 2022-10-26 2023-01-20 湖南农业大学 Compound conditioner for medium and light cadmium-polluted soil and application

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