CN113083233A - Preparation of carbon material based on reed and eutectic solvent and method for efficiently adsorbing iodine and dye in wastewater by using carbon material - Google Patents
Preparation of carbon material based on reed and eutectic solvent and method for efficiently adsorbing iodine and dye in wastewater by using carbon material Download PDFInfo
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- CN113083233A CN113083233A CN202110569829.3A CN202110569829A CN113083233A CN 113083233 A CN113083233 A CN 113083233A CN 202110569829 A CN202110569829 A CN 202110569829A CN 113083233 A CN113083233 A CN 113083233A
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- iodine
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- 239000003575 carbonaceous material Substances 0.000 title claims abstract description 78
- 239000002351 wastewater Substances 0.000 title claims abstract description 51
- 235000014676 Phragmites communis Nutrition 0.000 title claims abstract description 46
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 239000011630 iodine Substances 0.000 title claims abstract description 45
- 229910052740 iodine Inorganic materials 0.000 title claims abstract description 45
- 230000005496 eutectics Effects 0.000 title claims abstract description 41
- 239000002904 solvent Substances 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 238000001179 sorption measurement Methods 0.000 claims abstract description 36
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- GQHTUMJGOHRCHB-UHFFFAOYSA-N 2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine Chemical compound C1CCCCN2CCCN=C21 GQHTUMJGOHRCHB-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000975 dye Substances 0.000 claims description 33
- 239000007864 aqueous solution Substances 0.000 claims description 27
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims description 11
- STZCRXQWRGQSJD-GEEYTBSJSA-M methyl orange Chemical compound [Na+].C1=CC(N(C)C)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 STZCRXQWRGQSJD-GEEYTBSJSA-M 0.000 claims description 11
- 229940012189 methyl orange Drugs 0.000 claims description 11
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 11
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 claims description 11
- 229940043267 rhodamine b Drugs 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 239000003463 adsorbent Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims description 2
- 238000001354 calcination Methods 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 4
- 239000001257 hydrogen Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 2
- DKNPRRRKHAEUMW-UHFFFAOYSA-N Iodine aqueous Chemical compound [K+].I[I-]I DKNPRRRKHAEUMW-UHFFFAOYSA-N 0.000 description 7
- 238000002835 absorbance Methods 0.000 description 7
- 244000273256 Phragmites communis Species 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000012153 distilled water Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- ZCYVEMRRCGMTRW-NJFSPNSNSA-N iodine-129 atom Chemical compound [129I] ZCYVEMRRCGMTRW-NJFSPNSNSA-N 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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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
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- 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
- B01J20/30—Processes for preparing, regenerating, or reactivating
-
- 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
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- 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
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- 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
- C02F2101/006—Radioactive compounds
-
- 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
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Chemical & Material Sciences (AREA)
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- 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)
- Inorganic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to a method for preparing a carbon material based on reed and a eutectic solvent and efficiently adsorbing iodine and dye in wastewater, wherein the eutectic solvent is a two-component eutectic formed by combining a hydrogen bond acceptor and a hydrogen bond donor, the eutectic solvent in the method consists of two components, wherein the component 1 is ethylene glycol, the component 2 is 1, 8 diazabicyclo [5.4.0] undec-7-ene, and the molar ratio of the component 1 to the component 2 is 4: 1. The carbon material is prepared by mixing and burning reed and eutectic solvent according to the mass ratio of 1: 2, and the carbon material is used for adsorbing iodine and dye in wastewater, wherein the adsorption temperature is 25-40 ℃, and the adsorption time is 1-8 hours. The invention provides a preparation method of a carbon material based on reed and a eutectic solvent and a method for efficiently adsorbing iodine and dye in wastewater by using the carbon material.
Description
Technical Field
The invention relates to a preparation method of a carbon material based on reed and a eutectic solvent and a method for efficiently adsorbing iodine and dye in wastewater by using the carbon material, and belongs to the application of the carbon material in the field of wastewater treatment.
Background
Radioactive iodine (e.g., iodine-129) is one of the harmful components produced by nuclear waste water and nuclear accidents, and has carcinogenicity. The nuclear accidents such as the Sanli island nuclear accident, the Chernobeli nuclear accident, the Fudao nuclear accident and the like all generate a large amount of nuclear waste water. The official decision of discharging nuclear waste water to the pacific on 13/4/2021 has led to an increasing concern about the disposal of nuclear waste water. Most dyes are composed of polyphenyl substituted compounds, are high in toxicity and difficult to degrade, and a large amount of dyes are discharged into lakes and rivers due to improper treatment every year all over the world, so that the environment is damaged, and meanwhile, certain threats are brought to water sources where human beings live. Therefore, the preparation of a novel adsorbent for realizing the high-efficiency adsorption of iodine and dye in the wastewater has great significance.
Reed is a main plant growing on the white lake in the New area of Xiongan and is one of the income sources of local people. Due to economic transformation, local people are less and less in reed utilization, a large amount of reeds are not utilized and naturally decay to cause certain pollution to the quality of the white lake water, so that the reeds become one of the main solid wastes in the male and new areas. The eutectic solvent is a two-component eutectic formed by combining a hydrogen bond acceptor and a hydrogen bond donor, has the advantages of low cost, high atom utilization rate, strong biodegradability, simple and convenient synthesis and the like, and is called as a green solvent in the 21 st century. Therefore, the preparation of the carbon material by using the reed and the eutectic solvent has important significance for green resource utilization of the reed solid waste, and can promote the synergistic development of Jingjin Ji and the construction of a new area of male peace.
The traditional method for treating iodine and dye in wastewater has the problems of high cost, low efficiency, complex operation and the like, and the invention provides a method for adsorbing iodine and dye in wastewater by using a novel carbon material prepared based on biomass reeds and eutectic solvents.
Disclosure of Invention
The invention provides a preparation method of a carbon material based on reeds and a eutectic solvent and a method for efficiently adsorbing iodine and dye in wastewater by using the carbon material, the method is simple, convenient, low in cost and high in efficiency, and has important practical application values for wastewater treatment and resource utilization of reed solid waste.
The invention adopts the technical scheme that a method for preparing a carbon material based on reed and a eutectic solvent and efficiently adsorbing iodine and dye in wastewater by the carbon material comprises the following steps:
1) preparing a carbon material by using reed and a eutectic solvent;
2) adsorbing iodine and dye in the wastewater by using a carbon material;
3) the absorbance was measured by spectrophotometry and the adsorption rate was calculated.
In the optimized method for preparing the carbon material based on the reed and the eutectic solvent and efficiently adsorbing iodine and dye in the wastewater, in the step 1), the eutectic solvent is ethylene glycol: 1, 8-diazabicyclo [5.4.0] undec-7-ene (DBU) with the molar ratio of 4: 1.
Preferably, in the preparation of the carbon material based on the reeds and the eutectic solvent and the method for efficiently adsorbing iodine and dye in wastewater, in the step 1), the reed raw material is reed powder which is naturally dried and crushed for multiple times.
Preferably, in the preparation of the carbon material based on the reed and the eutectic solvent and the method for efficiently adsorbing iodine and dye in wastewater, in the step 1), the reed and the eutectic solvent are stirred and mixed according to the mass ratio of 1: 2.
Preferably, in the step 1), the mixture of the reed and the eutectic solvent is placed in a crucible and is placed in a muffle furnace to be burned for 2 hours at 500 ℃.
Preferably, in the preparation of the carbon material based on the reed and the eutectic solvent and the method for efficiently adsorbing iodine and dye in wastewater, in the step 1), the carbon material is obtained after firing, and the carbon material is ground in a mortar and then stored in a reagent bottle for later use.
Preferably, in the step 2), the concentration of iodine in the aqueous solution for adsorbing iodine by using the carbon material is 7.92 millimoles per liter, and the concentration of dye in the dye aqueous solution is 10 micromoles per liter.
Preferably, in the preparation of the carbon material based on the reed and the eutectic solvent and the method for efficiently adsorbing iodine and dye in the wastewater, in the step 2), the dye is any one of methylene blue, methyl orange and rhodamine B.
Preferably, in the step 2), the temperature change range of the carbon material for adsorbing iodine and dye in the wastewater is 25-40 ℃, and the adsorption time range is 1-8 hours.
Preferably, in the step 2), the mass range of the carbon material added is 0.10-0.20 g, and the volume range of the iodine aqueous solution or the dye aqueous solution added is 5-10 ml.
Preferably, in the preparation of the carbon material based on the reed and the eutectic solvent and the method for efficiently adsorbing iodine and dye in the wastewater, in the step 3), the carbon material is immediately filtered by using a needle type filter after adsorption to obtain a filtrate.
Preferably, in step 3), a spectrophotometer is used to measure the absorbance of the original iodine aqueous solution and the absorbed iodine aqueous solution at a wavelength of 462 nm by using distilled water as a reference, the absorbance of the original methylene blue aqueous solution and the absorbed methylene blue aqueous solution at a wavelength of 662 nm by using distilled water as a reference, the absorbance of the original rhodamine B aqueous solution and the absorbed rhodamine B aqueous solution at a wavelength of 554 nm by using distilled water as a reference, and the absorbance of the original methyl orange aqueous solution and the absorbed methyl orange aqueous solution at a wavelength of 464 nm by using distilled water as a reference.
Preferably, in the method for preparing the carbon material based on the reed and the eutectic solvent and efficiently adsorbing iodine and dye in the wastewater, in the step 3), the adsorption rate is calculated according to the measured absorbance.
According to the technical scheme, the preparation of the carbon material based on the reeds and the eutectic solvent and the method for efficiently adsorbing iodine and dye in the wastewater are provided, the defects of the prior art can be overcome, the cost is low, the adsorption is efficient, the operation is simple, and the method has important practical application value in wastewater treatment and resource utilization of reed solid waste.
Drawings
FIG. 1 is a chemical structural formula of a component 1 (ethylene glycol) and a component 2(DBU) of a eutectic solvent of the present application;
FIG. 2 is a chemical structural formula of the adsorbed methylene blue, methyl orange, rhodamine B of the present application;
FIG. 3 is a graph showing the effect of temperature, time, volume of solution, and mass of carbon material on the adsorption of iodine in wastewater;
FIG. 4 shows the adsorption effect of the carbon material of the present application on methylene blue, methyl orange, and rhodamine B in wastewater.
Detailed Description
Example 1
Adding ethylene glycol DBU with the molar ratio of 4: 1 into a reagent bottle, stirring the mixture at 25 ℃ until the mixture is fully dissolved to generate a eutectic solvent ethylene glycol DBU (4: 1). The reed raw material is reed powder which is naturally dried and crushed for many times. Mixing reed and eutectic solvent according to the mass ratio of 1: 2, placing the mixture into a crucible and a muffle furnace, burning the mixture for 2 hours at 500 ℃ to obtain a carbon material, grinding the carbon material by using a mortar, and then placing the ground carbon material into a reagent bottle for storage. Weighing 0.15 g of carbon material, placing the carbon material at the bottom of a glass bottle, adding 5 ml of aqueous solution of iodine with the concentration of 7.92 mmol/l, placing the glass bottle into an oil bath kettle, stirring the glass bottle at 25 ℃ for 8 hours, filtering the glass bottle by using a needle filter after adsorption is finished, and measuring the absorbance of the filtrate by using a spectrophotometer at the wavelength of 462 nm. The adsorption rate of the carbon material to iodine in wastewater was 98.35% as measured by spectrophotometry (fig. 3).
Example 2
The specific implementation process is the same as that of example 1, the temperature is changed from 25 ℃ to 40 ℃, other conditions are not changed, and the adsorption rate of the carbon material on iodine in wastewater is 98.53 percent when the carbon material is adsorbed at 40 ℃ for 8 hours (fig. 3 a).
Example 3
The specific implementation process is the same as that of example 1, the time is changed from 8 hours to 1 hour, other conditions are not changed, the adsorption rate of the carbon material for adsorbing iodine in wastewater at 25 ℃ for 1 hour is 97.98% (fig. 3b), and the adsorption rate of the carbon material prepared directly under the same conditions based on reed for adsorbing iodine in wastewater for 1 hour is only 89.90%.
Example 4
The specific implementation process is the same as that of example 1, the volume of the iodine aqueous solution is changed from 5 ml to 10 ml, other conditions are not changed, and the adsorption rate of the carbon material on iodine in wastewater is 99.08% when the carbon material is adsorbed at 25 ℃ for 8 hours (fig. 3 c).
Example 5
The specific implementation process is the same as that of example 1, the mass of the carbon material is changed from 0.15 g to 0.10 g, other conditions are not changed, and the adsorption rate of the carbon material to iodine in wastewater is 97.80% after adsorption for 8 hours at 25 ℃ (fig. 3 d).
Example 6
The specific implementation process is the same as that of example 1, the mass of the carbon material is changed from 0.15 g to 0.20 g, other conditions are not changed, and the adsorption rate of the carbon material to iodine in wastewater is 98.71% after adsorption for 8 hours at 25 ℃ (fig. 3 d).
Example 7
The specific implementation process is the same as that of example 1, the aqueous solution of iodine is changed into 10 micromole per liter of rhodamine B aqueous solution, the wavelength is changed from 462 nanometers to 554 nanometers, other conditions are not changed, and the adsorption rate of the carbon material on rhodamine B in wastewater is 99.36 percent when the carbon material is adsorbed at 25 ℃ for 8 hours (figure 4).
Example 8
The specific implementation process is the same as that of example 1, the iodine aqueous solution is changed into 10 micromole per liter of methylene blue aqueous solution, the wavelength is changed from 462 nanometers to 662 nanometers, other conditions are not changed, and the adsorption rate of the carbon material on methylene blue in wastewater is 99.40 percent when the carbon material is adsorbed at 25 ℃ for 8 hours (fig. 4).
Example 9
The specific implementation process is the same as that of example 1, the iodine aqueous solution is changed into a methyl orange aqueous solution of 10 micromole per liter, the wavelength is changed from 462 nm to 464 nm, other conditions are not changed, and the adsorption rate of the carbon material on methyl orange in wastewater is 96.99 percent when the carbon material is adsorbed at 25 ℃ for 8 hours (fig. 4).
Example 10
The specific implementation process is the same as that of example 1, the aqueous solution of iodine is changed into 10 micromole per liter of rhodamine B aqueous solution, the wavelength is changed from 462 nanometers to 554 nanometers, other conditions are not changed, the adsorption rate of the carbon material to rhodamine B in wastewater is 99.28% when the carbon material is adsorbed at 25 ℃ for 1 hour, and the adsorption rate of the carbon material directly prepared under the same conditions based on reed to rhodamine B in wastewater for 1 hour is only 88.85%.
Example 11
The specific implementation process is the same as that of example 1, the aqueous solution of iodine is changed into 10 micromole per liter of methylene blue aqueous solution, the wavelength is changed from 462 nm to 662 nm, other conditions are not changed, the adsorption rate of the carbon material to the methylene blue in the wastewater is 99.49% when the carbon material is adsorbed at 25 ℃ for 1 hour, and the adsorption rate of the carbon material prepared directly under the same conditions based on reed to the methylene blue in the wastewater is only 87.67% when the carbon material is adsorbed for 1 hour.
Example 12
The specific implementation process is the same as that of example 1, the iodine aqueous solution is changed into a methyl orange aqueous solution with the concentration of 10 micromole per liter, the wavelength is changed from 462 nm to 464 nm, other conditions are not changed, the adsorption rate of the carbon material for adsorbing methyl orange in wastewater for 1 hour at 25 ℃ is 97.71%, and the adsorption rate of the carbon material directly prepared under the same conditions based on reed for adsorbing methyl orange in wastewater for 1 hour is only 91.98%.
Claims (7)
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| CN116237013A (en) * | 2023-01-16 | 2023-06-09 | 廊坊师范学院 | Carbon material based on biomass and eutectic solvent and wastewater adsorption treatment method |
| CN118026335A (en) * | 2024-04-10 | 2024-05-14 | 廊坊师范学院 | Method for recycling waste liquid by using composite material containing biomass and eutectic solvent |
| CN118239629A (en) * | 2024-04-24 | 2024-06-25 | 廊坊师范学院 | Method for treating waste oil and waste water by using functionalized carbon material based on solid waste |
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| CN116099517A (en) * | 2023-01-16 | 2023-05-12 | 廊坊师范学院 | Adsorption material prepared by using magnetic eutectic solvent and method for adsorbing dye in waste engine oil and waste water by using adsorption material |
| CN116237013A (en) * | 2023-01-16 | 2023-06-09 | 廊坊师范学院 | Carbon material based on biomass and eutectic solvent and wastewater adsorption treatment method |
| CN116237013B (en) * | 2023-01-16 | 2024-11-22 | 廊坊师范学院 | A carbon material based on biomass and a low eutectic solvent and a wastewater adsorption treatment method |
| CN118026335A (en) * | 2024-04-10 | 2024-05-14 | 廊坊师范学院 | Method for recycling waste liquid by using composite material containing biomass and eutectic solvent |
| CN118239629A (en) * | 2024-04-24 | 2024-06-25 | 廊坊师范学院 | Method for treating waste oil and waste water by using functionalized carbon material based on solid waste |
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