CN116747831A - Method for solidifying metal ions in indium-germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis - Google Patents
Method for solidifying metal ions in indium-germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 47
- 229910021645 metal ion Inorganic materials 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003723 Smelting Methods 0.000 title claims abstract description 27
- SAZXSKLZZOUTCH-UHFFFAOYSA-N germanium indium Chemical compound [Ge].[In] SAZXSKLZZOUTCH-UHFFFAOYSA-N 0.000 title claims abstract description 27
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 16
- UGKDIUIOSMUOAW-UHFFFAOYSA-N iron nickel Chemical compound [Fe].[Ni] UGKDIUIOSMUOAW-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 13
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 20
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012266 salt solution Substances 0.000 claims abstract description 17
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 8
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 8
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 238000007711 solidification Methods 0.000 claims abstract description 7
- 230000008023 solidification Effects 0.000 claims abstract description 7
- 150000002500 ions Chemical class 0.000 claims abstract description 6
- 238000000975 co-precipitation Methods 0.000 claims abstract description 5
- 239000011777 magnesium Substances 0.000 claims abstract description 5
- 239000011575 calcium Substances 0.000 claims abstract description 4
- 229910052802 copper Inorganic materials 0.000 claims abstract description 4
- 239000010949 copper Substances 0.000 claims abstract description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 3
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 3
- 239000011651 chromium Substances 0.000 claims abstract description 3
- 238000001914 filtration Methods 0.000 claims abstract description 3
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 3
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims abstract description 3
- 239000002253 acid Substances 0.000 claims description 12
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000012065 filter cake Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 230000002194 synthesizing effect Effects 0.000 claims description 5
- 239000012066 reaction slurry Substances 0.000 claims description 4
- -1 iron ions Chemical class 0.000 claims description 3
- 238000006467 substitution reaction Methods 0.000 claims description 3
- 230000002378 acidificating effect Effects 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- VEQPNABPJHWNSG-UHFFFAOYSA-N Nickel(2+) Chemical compound [Ni+2] VEQPNABPJHWNSG-UHFFFAOYSA-N 0.000 claims 2
- 229910001453 nickel ion Inorganic materials 0.000 claims 2
- 239000000706 filtrate Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 150000002815 nickel Chemical class 0.000 claims 1
- 239000002244 precipitate Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 8
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 150000001875 compounds Chemical class 0.000 abstract description 4
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- 239000000203 mixture Substances 0.000 abstract description 2
- AOPCKOPZYFFEDA-UHFFFAOYSA-N nickel(2+);dinitrate;hexahydrate Chemical compound O.O.O.O.O.O.[Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O AOPCKOPZYFFEDA-UHFFFAOYSA-N 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- WLZRMCYVCSSEQC-UHFFFAOYSA-N cadmium(2+) Chemical compound [Cd+2] WLZRMCYVCSSEQC-UHFFFAOYSA-N 0.000 description 3
- 229910052738 indium Inorganic materials 0.000 description 3
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
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- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
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- 239000000047 product Substances 0.000 description 2
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
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- 125000000129 anionic group Chemical group 0.000 description 1
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- 239000003344 environmental pollutant Substances 0.000 description 1
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- DBVJJBKOTRCVKF-UHFFFAOYSA-L etidronic acid(2-) Chemical compound OP(=O)([O-])C(O)(C)P(O)([O-])=O DBVJJBKOTRCVKF-UHFFFAOYSA-L 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
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- 239000011268 mixed slurry Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
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- 231100000614 poison Toxicity 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses a method for solidifying heavy metal ions in indium germanium smelting wastewater based on nickel-iron hydrotalcite in-situ synthesis, which mainly comprises the following steps: adding nickel nitrate hexahydrate into the indium-germanium smelting wastewater to obtain a mixed salt solution with the molar ratio of nickel to iron being 1:1-3:1; mixing the mixed salt solution with sodium hydroxide solution for coprecipitation; centrifugally filtering to obtain the nickel-iron hydrotalcite-like material for simultaneously solidifying metal ions such as aluminum, calcium, magnesium, manganese, chromium, copper and the like in the wastewater. According to the composition characteristics of metal ions in the indium-germanium smelting wastewater, the method utilizes the solidification effect of the nickel-iron hydrotalcite-like compound in the wastewater in-situ synthesis process to realize the removal of the metal ions in the wastewater and the synthesis of the nickel-iron hydrotalcite-like compound material. The method has good comprehensive treatment effect on various metal ions in the indium-germanium smelting wastewater and low treatment cost, and meanwhile, the synthesized nickel-iron hydrotalcite-like material can be selectively applied to other environmental protection fields.
Description
Technical Field
The invention belongs to the field of environmental protection engineering, and particularly relates to a method for solidifying metal ions in indium germanium smelting wastewater based on nickel-iron hydrotalcite in-situ synthesis.
Technical Field
A large amount of acid wastewater is generated in the smelting process of metals such as indium and germanium, and the main pollutants are Cu, zn, fe, ni, mn, al, mg, cr and other metal ions with different concentrations, so that the method is industrial wastewater which has multiple components, high concentration, large hazard degree and difficult treatment. The method directly discharges the strong acid indium-germanium smelting wastewater, which not only causes environmental pollution, but also causes great harm to human health, and simultaneously, a large amount of available valuable metals flow to the environment and cannot be used by human beings, thereby being a metal resource waste. For metal smelting enterprises, a convenient, economical and effective treatment method is adopted, and meanwhile, a plurality of metal ions in the wastewater are treated, and materials applicable to other environmental protection fields are obtained, so that the requirement of sustainable development is met, and the recycling of the wastewater can be realized.
The traditional indium-germanium smelting wastewater treatment process generally uses a lime milk neutralization precipitation method, acid in the wastewater is neutralized, and then the wastewater is subjected to staged precipitation into sediment by utilizing different pH values of hydrolysis precipitation of metal ions. Although the method has the advantages of mature and simple process and relatively low treatment cost, valuable metals in the sediment are low in taste and cannot be extracted and reused, heavy metal ions in the sediment are easy to be dissociated and desorbed, and solidification/stabilization treatment is needed to meet the landfill requirement. In addition, ca in the treated reuse water 2+ 、Mg 2+ The plasma content is increased, which causes problems such as corrosion and scaling of equipment and pipelines.
The ion exchange process is one new technology for treating metal ion in waste water from smelting indium and germanium, and the principle is that metal ion exchange with ion exchange resin to reduce the concentration of metal ion in the waste water. The method has the advantages of high treatment capacity, good separation effect, low energy consumption and standard emission. However, the absorption effect of heavy metal ions is easily affected by factors such as pH, temperature, contact time and the like, and the produced concentrated water contains a lot of toxic substances, cannot be discharged and cannot be comprehensively recovered. For example Liu Xian, a novel resin desalting process is adopted to treat wastewater containing acid and heavy metal in indium hydrometallurgy, and the process can almost completely adsorb the acid, but can only partially adsorb heavy metal ions.
From the research results reported in the prior art, the current indium germanium smelting wastewater treatment process focuses on how to transfer the metal ion position or change the form of the metal ion, and the final use and the product value of the obtained product are not fully considered, so that the utilization degree of the metal ion resource is low. Therefore, development of a recycling treatment method with good economic benefit and good treatment effect is urgent.
Hydrotalcite-like compounds (also called Layered Double Hydroxides (LDHs)) are widely applied anionic inorganic layered materials, and have the structural general formula: [ M ] 2+ 1-x M 3+ x (OH) 2 ] x+ (A n- ) x/n ·zH 2 O, the bulk layer of which consists of divalent cations (e.g. Mg 2+ 、Fe 2+ 、Ca 2+ 、Zn 2+ Etc.) are bound to a certain extent by trivalent metal cations of suitable ionic radius (e.g.A1) 3+ 、Fe 3+ 、Mn 3+ Isomorphous substitution, so that the main laminate has partial positive charge and interlayer guest anions A n- （CO 3 2- 、PO 4 3- 、NO 3 - 、SO 4 2- And organic anions, etc.) are balanced with the positive charges carried by the main body laminate, thereby forming the supramolecular material with the main guest structure. The LDHs has a plurality of exchangeable guest components between layers, the abundant metal ions in the laminate structure have a plurality of chemical bonds, and the metal ions can be solidified in the modes of adsorption, complexation, coprecipitation, isomorphous substitution and the like, so that the mobility of the metal ions in the environment is obviously reduced. Petrochemical industry, 2021, 50 (11): lei Xiaodong et al in 1121-1126 are based on differences in thermodynamic stability of LDHs and ionsRadius matching principle, cd 2+ Anchored at SO 4 2- An in-situ hyperstable mineralization structure is formed in the lattice of the intercalated CaAl-LDH laminate, so that Cd is reduced 2+ Pollution of ions to the environment. Patent application 201910566264.6 discloses a modified hydrotalcite-like compound with strong adsorption effect on cadmium ions and application thereof, wherein hydrotalcite obtained by modifying hydroxy ethylidene bisphosphonate has strong adsorption effect on cadmium ions in wastewater, and the adsorption capacity on cadmium ions reaches 103.14-107.17mg/g and the removal rate reaches 93.11-95.38% under the conditions of pH=3.5-5.5 and the temperature of 25-55 ℃.
From the research results reported in the prior art, most of hydrotalcite materials are utilized to adsorb and remove metal ions in wastewater, and the method of synthesizing hydrotalcite-like materials in situ in wastewater is rarely considered to realize the solidification treatment of various metal ions in wastewater. Therefore, the invention aims to realize the solidification treatment of metal ions in the wastewater by using the method for directly synthesizing the ferronickel hydrotalcite-like material in situ by using the acid indium-germanium metallurgical wastewater. The method disclosed by the invention is simple and convenient to operate, low in cost, good in treatment effect, and not easy to introduce secondary pollution, and provides a new method for the field of sewage treatment.
Disclosure of Invention
The invention aims to provide a method for solidifying metal ions in indium-germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis, which is convenient to prepare and low in cost, belongs to a clean process, and is easy to realize wastewater recycling treatment to prepare nickel-iron hydrotalcite-like materials.
The preparation method adopted by the invention is a coprecipitation method. The specific operation is as follows: adding soluble metal salt Ni (NO) into the acidic indium-germanium smelting wastewater according to the measurement of enabling the molar ratio of nickel to iron in the mixed salt solution to be 1:1-3:1 3 ) 2 ·6H 2 O forms a mixed salt solution; dropwise adding a NaOH solution into the mixed salt solution under the condition of stirring at room temperature to maintain the pH of a reaction system at 9-10; after the dripping is finished, stirring the mixed slurry to react for 0 to 6 hours; and (3) centrifugally filtering, and drying a filter cake to obtain the ferronickel hydrotalcite-like material powder.
Compared with the prior art, the invention has the following beneficial effects: the acid indium-germanium metallurgical wastewater is sourced from a real indium-germanium smelting factory, the raw material sources are wide, the raw material composition contains various metal ions required by synthesizing hydrotalcite-like materials such as iron, nickel, aluminum, calcium, magnesium, manganese, chromium, copper and the like, the nickel-iron hydrotalcite-like materials prepared by the method can simultaneously remove the various metals, the problems of desorption, secondary pollution and the like of the metal ions are avoided, and the solidification treatment of the metal ions in the wastewater is simply and efficiently realized.
Drawings
FIG. 1 is an X-ray diffraction pattern of a nickel-iron hydrotalcite-like material prepared in example 2 of the present invention
FIG. 2 is a scanning electron microscope image of a nickel-iron hydrotalcite-like material prepared in example 2 of the present invention
Detailed Description
For a better understanding of the present invention, the present invention is further illustrated by the following examples, which are included within the scope of the present invention, but are not limited thereto.
Example 1
3.55g Ni (NO) was weighed out in a quantity such that the molar ratio of nickel to iron in the mixed salt solution was 1:1 3 ) 2 ·6H 2 O is dissolved in 20ml of acid indium-germanium metallurgical wastewater, so that the acid indium-germanium metallurgical wastewater is fully dissolved to form mixed salt solution, and the mixed salt solution is marked as solution A; preparing a 5mol/L NaOH solution, and marking as a solution B; dropwise adding the solution B into the solution A under the condition of stirring at room temperature, so that the pH value of a solution system is kept at 10; after the solution B is dripped, stirring and reacting for 3 hours; after the reaction is finished, the obtained reaction slurry is centrifuged, a filter cake is taken and dried at 60 ℃, and the obtained powder is the ferronickel hydrotalcite material.
Example 2
7.60g Ni (NO) was weighed out in a molar ratio of 2:1 in the mixed salt solution 3 ) 2 ·6H 2 O is dissolved in 20ml of acid smelting wastewater to be fully dissolved to form mixed salt solution, and the mixed salt solution is marked as solution A; preparing a 5mol/L NaOH solution, and marking as a solution B; dropwise adding the solution B into the solution A under the condition of stirring at room temperature to enable a solution system to be formedThe pH was maintained at 10; after the solution B is dripped, stirring and reacting for 3 hours; after the reaction is finished, the obtained reaction slurry is centrifuged, a filter cake is taken and dried at 60 ℃, and the obtained powder is the ferronickel hydrotalcite material.
Example 3
10.70g Ni (NO) was weighed out in a ratio of 3:1 by mole of nickel to iron in the mixed salt solution 3 ) 2 ·6H 2 O is dissolved in 20ml of acid smelting wastewater, so that the O is fully dissolved to form mixed salt solution, and the mixed salt solution is marked as solution A; preparing a 5mol/L NaOH solution, and marking as a solution B; dropwise adding the solution B into the solution A under the condition of stirring at room temperature, so that the pH value of a solution system is kept at 10; after the solution B is dripped, stirring and reacting for 3 hours; after the reaction is finished, the obtained reaction slurry is centrifuged, a filter cake is taken and dried at 60 ℃, and the obtained powder is the ferronickel hydrotalcite material.
Claims (3)
1. A method for solidifying metal ions in indium-germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis is characterized by comprising the following steps: solidifying metal ions in the wastewater in the process of synthesizing the ferronickel hydrotalcite-like material in situ in the indium-germanium smelting wastewater by a one-step coprecipitation method, and simultaneously reducing the concentration of various metal ions in the wastewater; the method comprises the following steps: taking soluble metal salt Ni (NO) 3 ) 2 ·6H 2 O is dissolved in acid indium germanium smelting wastewater to form mixed salt solution, wherein Ni (NO) 3 ) 2 ·6H 2 The addition amount of O is measured according to the molar ratio of nickel to iron in the mixed salt solution of 1:1-3:1; dropwise adding a NaOH solution into the mixed salt solution under the condition of stirring at room temperature to maintain the pH value of a reaction system at 9-10, and stirring for reaction for 0-6 hours after the dropwise adding is finished; centrifugally filtering the reaction slurry obtained after the reaction, and drying a filter cake to obtain a precipitate, namely the ferronickel hydrotalcite material; and detecting the concentration of metal ions in the filtrate, namely the concentration of the metal ions remained in the treated waste liquid.
2. The method for solidifying metal ions in indium germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis according to claim 1, which is characterized by comprising the following steps: the used indium-germanium smelting wastewater comes from an indium-germanium metallurgical factory, and the main metal ions in the indium-germanium smelting wastewater are characterized in that: contains a large amount of ions such as iron, nickel, chromium, manganese, copper, calcium, magnesium, aluminum and the like; the wastewater from indium germanium smelting is strongly acidic.
3. The method for solidifying metal ions in indium germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis according to claim 1, which is characterized by comprising the following steps: the in-situ synthesis preparation of the ferronickel hydrotalcite-like material fully utilizes a large amount of nickel ions and iron ions existing in the indium-germanium smelting wastewater, adjusts the different proportions of the nickel ions by adding soluble nickel salt, and then adjusts the pH value by using NaOH solution to realize in-situ synthesis; in the process of synthesizing the ferronickel hydrotalcite-like material, the solidification treatment of metal ions in the wastewater is realized by adsorption, coprecipitation, isomorphous substitution and other modes, namely, the solidification treatment of metal ions and the in-situ synthesis of the ferronickel hydrotalcite-like material are realized in a wastewater reaction system.
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| CN202310682104.4A CN116747831A (en) | 2023-06-09 | 2023-06-09 | Method for solidifying metal ions in indium-germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis |
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| CN202310682104.4A CN116747831A (en) | 2023-06-09 | 2023-06-09 | Method for solidifying metal ions in indium-germanium smelting wastewater based on nickel-iron hydrotalcite-like in-situ synthesis |
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| CN101664665A (en) * | 2009-10-15 | 2010-03-10 | 北京化工大学 | Layered adsorbent of wastewater containing thiosulfate and treatment method thereof |
| CA2970206A1 (en) * | 2009-03-20 | 2010-09-23 | Commonwealth Scientific And Industrial Research Organisation | Treatment or remediation of natural or waste water |
| CN102976467A (en) * | 2012-11-28 | 2013-03-20 | 常州大学 | Treating method of electroplating wastewater |
| CN111558361A (en) * | 2020-04-30 | 2020-08-21 | 中国科学院南京土壤研究所 | Industrial wastewater remediation material and application thereof, and treatment method of industrial wastewater containing cobalt-nickel divalent metal cations |
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|---|---|---|---|---|
| CA2970206A1 (en) * | 2009-03-20 | 2010-09-23 | Commonwealth Scientific And Industrial Research Organisation | Treatment or remediation of natural or waste water |
| CN101664665A (en) * | 2009-10-15 | 2010-03-10 | 北京化工大学 | Layered adsorbent of wastewater containing thiosulfate and treatment method thereof |
| CN102976467A (en) * | 2012-11-28 | 2013-03-20 | 常州大学 | Treating method of electroplating wastewater |
| CN111558361A (en) * | 2020-04-30 | 2020-08-21 | 中国科学院南京土壤研究所 | Industrial wastewater remediation material and application thereof, and treatment method of industrial wastewater containing cobalt-nickel divalent metal cations |
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