CN115304050A - Preparation method of citrus peel biochar and application of citrus peel biochar in wastewater treatment - Google Patents
Preparation method of citrus peel biochar and application of citrus peel biochar in wastewater treatment Download PDFInfo
- Publication number
- CN115304050A CN115304050A CN202210969907.3A CN202210969907A CN115304050A CN 115304050 A CN115304050 A CN 115304050A CN 202210969907 A CN202210969907 A CN 202210969907A CN 115304050 A CN115304050 A CN 115304050A
- Authority
- CN
- China
- Prior art keywords
- citrus peel
- biochar
- temperature
- drying
- citrus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241000207199 Citrus Species 0.000 title claims abstract description 69
- 235000020971 citrus fruits Nutrition 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000004065 wastewater treatment Methods 0.000 title abstract description 7
- 239000013078 crystal Substances 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 20
- 239000002351 wastewater Substances 0.000 claims abstract description 11
- 239000003610 charcoal Substances 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000001354 calcination Methods 0.000 claims abstract description 8
- 238000007873 sieving Methods 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 12
- 239000012153 distilled water Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000003837 high-temperature calcination Methods 0.000 claims description 6
- 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 4
- IQFVPQOLBLOTPF-HKXUKFGYSA-L congo red Chemical compound [Na+].[Na+].C1=CC=CC2=C(N)C(/N=N/C3=CC=C(C=C3)C3=CC=C(C=C3)/N=N/C3=C(C4=CC=CC=C4C(=C3)S([O-])(=O)=O)N)=CC(S([O-])(=O)=O)=C21 IQFVPQOLBLOTPF-HKXUKFGYSA-L 0.000 claims description 4
- 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 4
- 229940012189 methyl orange Drugs 0.000 claims description 4
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 4
- 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 4
- 229940043267 rhodamine b Drugs 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 239000010919 dye waste Substances 0.000 claims 2
- 238000010923 batch production Methods 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 238000001179 sorption measurement Methods 0.000 description 27
- 239000000975 dye Substances 0.000 description 20
- 239000000243 solution Substances 0.000 description 13
- 239000007864 aqueous solution Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 7
- 244000276331 Citrus maxima Species 0.000 description 5
- 235000001759 Citrus maxima Nutrition 0.000 description 5
- 238000002835 absorbance Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 241001672694 Citrus reticulata Species 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000000967 suction filtration Methods 0.000 description 3
- 239000008399 tap water Substances 0.000 description 3
- 235000020679 tap water Nutrition 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000010170 biological method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005360 mashing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 208000005623 Carcinogenesis Diseases 0.000 description 1
- 241000282414 Homo sapiens Species 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000001000 anthraquinone dye Substances 0.000 description 1
- 239000000987 azo dye Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036952 cancer formation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000504 carcinogenesis Toxicity 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000001493 electron microscopy Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- 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
-
- 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
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
-
- 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
- B01J2220/4875—Sorbents characterised by the starting material used for their preparation the starting material being a waste, residue or of undefined composition
- B01J2220/4887—Residues, wastes, e.g. garbage, municipal or industrial sludges, compost, animal manure; fly-ashes
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
- C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic 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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to the technical field of dye wastewater treatment, and particularly discloses a preparation method of citrus peel biochar and application of the citrus peel biochar in wastewater treatment. The preparation method of the citrus peel biochar comprises the following steps: washing citrus peel with water, drying, crushing, sieving with a 40-100 mesh sieve, calcining at 300-800 ℃ for 0.5-3.0 h, cooling to room temperature, washing with water, and drying to obtain the citrus peel charcoal. The citrus peel biochar can efficiently adsorb crystal violet in wastewater, is simple in preparation method, wide in raw material source, low in price, not easy to cause secondary pollution, capable of realizing batch production and high in potential practical application value.
Description
Technical Field
The invention relates to the technical field of dye wastewater treatment, in particular to a preparation method of citrus peel biochar and application of the citrus peel biochar in wastewater treatment.
Background
With the improvement of living standard and the rapid development of industry, the dye is widely used in the industries of textile, paper making, printing, food, medicine, cosmetics and the like, the usage amount is greatly increased, and the investigation finds that the production amount, the usage amount, the export amount and the like of the dye are in the top of the world at the present stage of China, and the dye seriously threatens the ecological environment and the health of human beings. Most of dyes belong to organic matters with benzene ring structures, are extremely harmful and have toxic and side effects of carcinogenesis, sensitization, outbreak and the like. Crystal violet is a typical triphenylmethane cationic dye, is a third largest dye used after azo dyes and anthraquinone dyes, has good chemical stability when discharged into the environment, and is difficult to degrade by a conventional biological method. Therefore, finding an effective way to treat dye wastewater is one of the hot issues of research and attention today.
The current wastewater treatment methods mainly comprise an adsorption method, an electrochemical method, a biological method and the like. The adsorption method has the advantages of simple operation, good purification effect, low price, cyclic utilization, no secondary pollution and the like, so the adsorption method becomes one of the most promising technical means for treating the industrial dye wastewater.
Disclosure of Invention
The invention aims to provide a preparation method of citrus peel biochar and application of the citrus peel biochar in treatment of dye wastewater. The biochar prepared by using the citrus peels as the carbon source has a large specific surface area and a developed pore structure, can specifically adsorb crystal violet dye, and has good economic and environmental benefits.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation method of the citrus peel biochar comprises the following steps:
washing pericarp (mature pericarp is preferred) of Citrus (Citrus reticulata Blanco) with water, drying, pulverizing, sieving, calcining at high temperature, cooling to room temperature, washing with water, and drying to obtain the Citrus peel charcoal.
Further, the water is distilled water.
Further, the drying conditions are as follows: drying for 6-12 h at the temperature of 60-100 ℃; preferably, the drying conditions are as follows: drying at 85-90 deg.c for 10-12 hr.
Further, crushing the citrus peel, and sieving the crushed citrus peel by a 40-100-mesh sieve; preferably, the mixture is sieved by a sieve of 80 to 100 meshes.
Further, the high-temperature calcination conditions of the citrus peel powder are as follows: the temperature is raised from room temperature to 300-800 ℃, and the heat preservation time is 0.5-3.0 h.
Further, the high-temperature calcination conditions of the citrus peel powder are as follows: raising the temperature from room temperature to 600-700 ℃, and keeping the temperature for 1.0-2.0 h.
Preferably, the high-temperature calcination conditions of the citrus peel powder are as follows: the temperature is raised from room temperature to 700 ℃, and the holding time is 2.0h.
Further, the heating rate in the high-temperature calcination process of the citrus peel powder is 1-10 ℃/min.
The citrus peel biochar prepared by the preparation method is applied to treatment of dye wastewater.
Further, the dye in the dye wastewater comprises crystal violet, and also can comprise at least one of methylene blue, congo red, rhodamine B and methyl orange.
Further, when the method is specifically applied, the method comprises the following steps: and adding the citrus peel biochar into the dye wastewater, and stirring to perform adsorption reaction.
Further, the pH value of the dye wastewater is 3-10.
Furthermore, the adding amount of the citrus peel biochar is more than 0.03 g/L.
Further, the temperature of the adsorption reaction is 20-60 ℃, and the dye removal rate is less affected by temperature change in the temperature range.
Furthermore, the adsorption reaction time is more than 10min, the adsorption time reaches adsorption balance about 60min, and the dye removal rate reaches 99.73%.
Compared with the prior art, the invention has the advantages and beneficial effects that:
the citrus peel biochar can efficiently adsorb crystal violet in wastewater, is simple in preparation method, wide in raw material source, low in price, not easy to cause secondary pollution, capable of realizing batch production, and has a great potential practical application value, and a way is provided for effectively utilizing citrus peel, so that biomass resources are fully utilized, and 'treatment of waste by waste' and 'waste is changed into valuable' are realized.
Drawings
FIG. 1 is a scanning electron micrograph of the citrus peel charcoal prepared in example 2;
FIG. 2 is a scanning electron microscope image of the citrus peel biochar after adsorption reaction;
FIG. 3 is a graph showing the color change of a crystal violet solution before and after an adsorption reaction;
FIG. 4 is a change curve of ultraviolet spectrum of crystal violet solution before and after adsorption reaction;
FIG. 5 is a graph showing the effect of initial concentration of crystal violet on the performance of adsorption removal of crystal violet by citrus peel biochar;
FIG. 6 is a graph showing the effect of pH value of crystal violet solution on the performance of removing crystal violet by adsorbing with charcoal of orange peel;
FIG. 7 is a graph showing the effect of adsorption time on the performance of removing crystal violet by adsorption of citrus peel biochar.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
Cleaning collected peel of fresh mature Citrus (Citrus reticulata Blanco) with tap water and distilled water in sequence, cutting into blocks, drying at 85 ℃ in a blast oven for 12 hours, crushing the dried peel into powder by a crusher, sieving with a 100-mesh sieve, placing the sieved powder in a muffle furnace, heating to 400 ℃ from room temperature at a heating rate of 10 ℃/min, calcining at constant temperature for 2 hours, cooling to room temperature, taking out, crushing, washing with distilled water, performing suction filtration, and drying in the blast oven at 85 ℃ to obtain the Citrus peel charcoal.
Example 2
Cleaning the collected peel of fresh mature Citrus (Citrus reticulata Blanco) with tap water and distilled water in sequence, cutting into blocks, drying at 85 ℃ in a blast oven for 12h, crushing the dried peel into powder by a crusher, sieving by an 80-mesh sieve, placing the sieved powder in a muffle furnace, heating to 700 ℃ from room temperature at a heating rate of 10 ℃/min, calcining at constant temperature for 2h, taking out the powder after cooling to room temperature, mashing, washing with distilled water, performing suction filtration, and drying in the blast oven at 85 ℃ to obtain the Citrus peel charcoal. The scanning electron micrograph thereof is shown in FIG. 1. The citrus peel charcoal has an average pore diameter of 0.6955nm and a specific surface area (Langmuir specific surface area) of 600-700m 2 /g。
Comparative example 1
Cleaning collected fresh shaddock peel [ Citrus maxima (burm.) Merr ] with tap water and distilled water in sequence, cutting into blocks, drying at 85 ℃ in a blast oven for 12h, crushing dried peel into powder by a crusher, sieving by an 80-mesh sieve, putting the sieved powder into a muffle furnace, heating to 700 ℃ from room temperature at a heating rate of 10 ℃/min, calcining at constant temperature for 2h, taking out after cooling to room temperature, mashing, washing with distilled water, performing suction filtration, and drying at 85 ℃ in the blast oven to obtain the shaddock peel biochar.
The following dye adsorption experiment was performed using the citrus peel biochar prepared in example 2 as an adsorbent material.
The following application example calculates the adsorption capacity of the adsorbent according to the formula (1) and calculates the removal rate of the adsorbent according to the formula (2).
q is the adsorption capacity of the citrus peel biochar to the crystal violet, mg/g;
C 0 initial concentration of crystal violet, mg/L;
C t the concentration of the residual crystal violet after adsorption is mg/L;
v is the volume of the crystal violet solution, L;
m is the mass of the added citrus peel biochar in g;
eta is the removal rate of the citrus peel biochar to the crystal violet.
Application example 1
Accurately preparing crystal violet aqueous solutions with the concentrations of 10mg/L, 30mg/L, 50mg/L, 70mg/L and 90mg/L in 25mL colorimetric tubes respectively, metering to 25mL, adding 0.03g of the citrus peel biochar prepared in example 2 into the colorimetric tubes respectively, stirring for 1h in a thermostatic water bath at 25 ℃, centrifuging, and measuring the absorbance of the supernatant by using an ultraviolet spectrophotometer. Electron microscopy scans were performed on crystal violet adsorbed citrus peel charcoal as shown in FIG. 2. The color change of the crystal violet solution before and after the adsorption reaction is shown in FIG. 3, wherein the left image is before adsorption and the right image is after adsorption. Fig. 4 shows the ultraviolet spectrum of the crystal violet solution before and after the adsorption reaction.
The influence of the initial concentration of crystal violet on the performance of adsorbing and removing the crystal violet of the citrus peel biochar is shown in fig. 5, wherein the removal rates of the initial concentration of the crystal violet of 10mg/L, 30mg/L, 50mg/L, 70mg/L and 90mg/L are respectively as follows: 99.20%, 99.64%, 83.27%, 63.27% and 58.17%. When the initial concentration of the crystal violet is 30mg/L, the removal rate of the crystal violet is the highest and reaches 99.64 percent.
For comparison: accurately preparing a crystal violet solution with the concentration of 30mg/L in a 25mL colorimetric tube, fixing the volume to 25mL, adding 0.03g of the shaddock peel biochar prepared in the comparative example 1 into the colorimetric tube, stirring for 1h in a thermostatic water bath at 25 ℃, centrifuging, and measuring the absorbance of the supernatant by using an ultraviolet spectrophotometer.
The removal rate of the shaddock peel biochar on crystal violet is 72.26%.
Application example 2
Preparing crystal violet aqueous solutions with initial pH values of 3, 4, 5, 6, 7, 8, 9 and 10 respectively and a concentration of 30mg/L in 25mL colorimetric tubes respectively, and fixing the volumes to 25mL, wherein the pH of the solutions is adjusted by 0.1mol/LHCl and 0.1 mol/LNaOH; subsequently, 0.03g of the citrus peel biochar prepared in example 2 was added to the colorimetric tube, and the mixture was stirred in a thermostatic water bath at 25 ℃ for 1 hour, centrifuged, and the absorbance of the supernatant was measured with an ultraviolet spectrophotometer.
The influence of the pH value of the crystal violet solution on the performance of removing crystal violet by adsorbing the citrus peel biochar is shown in fig. 6, and the removal rates corresponding to the pH values of the crystal violet solution being 3, 4, 5, 6, 7, 8, 9 and 10 are respectively as follows: 99.65%, 99.63%, 99.66%, 99.62%, 99.66%, 99.63%, and 99.59%. Namely, the pH value of the crystal violet solution is 3-10, and the removal rate of the citrus peel biochar to the crystal violet reaches over 99.5 percent.
Application example 3
Accurately preparing 9 parts of crystal violet solution with the concentration of 30mg/L and the pH value of 8 in 25mL colorimetric tubes respectively, uniformly metering to 25mL, adding 0.03g of the citrus peel biochar prepared in the example 2 into each part, and stirring in a constant-temperature stirring water bath at 25 ℃. Stirring for 10, 20, 30, 40, 50, 60, 70, 90 and 120 minutes, centrifuging after stirring, and measuring the absorbance of the supernatant with an ultraviolet spectrophotometer.
The influence of the adsorption time on the performance of adsorbing and removing crystal violet by the citrus peel biochar is shown in fig. 7, and the removal rate of the crystal violet by the citrus peel biochar is increased along with the increase of the adsorption time; when the adsorption is carried out for 60 minutes, the adsorption balance is achieved, the removal rate of the citrus peel biochar to the crystal violet reaches 99.73%, and the adsorption capacity is 15.86mg/g.
Application example 4
A crystal violet aqueous solution with a concentration of 30mg/L, a methylene blue aqueous solution with a concentration of 30mg/L, a congo red aqueous solution with a concentration of 30mg/L, a rhodamine B aqueous solution with a concentration of 30mg/L and a methyl orange aqueous solution with a concentration of 30mg/L are accurately prepared in a 25mL colorimetric tube respectively, and are all fixed to a constant volume of 25mL, 0.03g of the citrus peel biochar prepared in example 2 is added into the colorimetric tube respectively, stirred for 1h in a thermostatic water bath at 25 ℃, centrifuged, and the absorbance of the supernatant is measured by an ultraviolet spectrophotometer.
The removal rates of the citrus peel biochar on different dyes are respectively as follows: 75.51 percent of methylene blue, 22.73 percent of Congo red, 28.68 percent of rhodamine B, 28.89 percent of methyl orange and 99.64 percent of crystal violet.
The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limited to the applications set forth in the specification, which are susceptible to modification and alteration without departing from the principles of the invention.
Claims (10)
1. A preparation method of citrus peel biochar is characterized by comprising the following steps:
washing citrus peel with water, sequentially drying, crushing and sieving to obtain citrus peel powder, calcining at high temperature, cooling to room temperature, washing with water, and drying to obtain citrus peel charcoal;
the high-temperature calcination conditions of the citrus peel powder are as follows: raising the temperature from room temperature to 300-800 ℃, and keeping the temperature for 0.5-3.0 h.
2. The method for preparing the citrus peel biochar as claimed in claim 1, wherein the conditions for calcining the citrus peel powder at high temperature are as follows: the temperature is raised from the room temperature to 600-700 ℃, and the heat preservation time is 1.0-2.0 h.
3. The method for preparing the citrus peel biochar as claimed in claim 1, wherein the conditions for calcining the citrus peel powder at high temperature are as follows: the temperature is raised from room temperature to 700 ℃, and the holding time is 2.0h.
4. The method for preparing the citrus peel biochar as claimed in any one of claims 1 to 3, wherein the citrus peel is crushed and then sieved by a 40-100 mesh sieve; preferably, sieving the mixture by a sieve of 80-100 meshes; and/or;
the drying conditions are as follows: drying for 6-12 h at the temperature of 60-100 ℃; preferably, the drying conditions are as follows: drying at 85-90 deg.c for 10-12 hr.
5. The method for preparing the citrus peel biochar as claimed in any one of claims 1 to 3, wherein the heating rate in the high-temperature calcination process of the citrus peel powder is 1-10 ℃/min.
6. The method for preparing the citrus peel biochar as claimed in any one of claims 1 to 3, wherein the water is distilled water.
7. Use of the citrus peel biochar prepared by the preparation method of any one of claims 1-6 in treatment of dye wastewater.
8. Use according to claim 7, wherein the dye in the dye waste water comprises crystal violet.
9. The use of claim 8, wherein the dye in the dye wastewater further comprises at least one of methylene blue, congo red, rhodamine B, and methyl orange.
10. Use according to claim 8 or 9, characterized in that the pH of the dye waste water is 3 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969907.3A CN115304050B (en) | 2022-08-12 | 2022-08-12 | Preparation method of citrus peel biochar and application of citrus peel biochar in aspect of wastewater treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210969907.3A CN115304050B (en) | 2022-08-12 | 2022-08-12 | Preparation method of citrus peel biochar and application of citrus peel biochar in aspect of wastewater treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115304050A true CN115304050A (en) | 2022-11-08 |
| CN115304050B CN115304050B (en) | 2024-01-23 |
Family
ID=83862009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210969907.3A Active CN115304050B (en) | 2022-08-12 | 2022-08-12 | Preparation method of citrus peel biochar and application of citrus peel biochar in aspect of wastewater treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115304050B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091905A (en) * | 2007-04-19 | 2007-12-26 | 浙江大学 | Preparing multistage adsorbent for difficult degradative organic wastewater in high concentration, and method of use |
| WO2016176906A1 (en) * | 2015-05-07 | 2016-11-10 | 浙江大学 | Method for producing canna indica biochar capable of adsorbing ammonia nitrogen and cadmium simultaneously |
| MX2015011850A (en) * | 2015-09-08 | 2017-03-07 | Benemérita Univ Autónoma De Puebla | Process of manufacturing and regeneration of an adsorbent containing nanoparticles of mixed oxides from ti and si efficient in the cationic dyes adsorption. |
| CN107032438A (en) * | 2017-06-07 | 2017-08-11 | 北京工业大学 | The method that sludge based biomass hydro-thermal carbon adsorbent removes Crystal Violet Dye in water removal |
| CN108178228A (en) * | 2018-01-08 | 2018-06-19 | 北京工业大学 | The method that water hyacinth base hydro-thermal carbon adsorbent removes Crystal Violet Dye in water removal |
| CN109626354A (en) * | 2019-01-31 | 2019-04-16 | 沈阳工业大学 | Charcoal absorbing material based on pomelo peel and preparation method thereof |
| CN111215031A (en) * | 2020-03-18 | 2020-06-02 | 重庆三峡学院 | Preparation method of high-purity biochar |
| CN111334318A (en) * | 2020-03-18 | 2020-06-26 | 重庆三峡学院 | Method for preparing plant-based biochar from single component through biological activation and modification |
| CN112062126A (en) * | 2020-09-17 | 2020-12-11 | 常州大学 | Method for preparing biochar from mango peel waste and application |
| CN113231015A (en) * | 2021-04-25 | 2021-08-10 | 衢州学院 | Preparation method of magnetic biochar composite adsorbent and application of magnetic biochar composite adsorbent in water treatment |
| CN113929079A (en) * | 2021-11-19 | 2022-01-14 | 中国科学院生态环境研究中心 | Preparation method and application of biomass charcoal electrode |
-
2022
- 2022-08-12 CN CN202210969907.3A patent/CN115304050B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101091905A (en) * | 2007-04-19 | 2007-12-26 | 浙江大学 | Preparing multistage adsorbent for difficult degradative organic wastewater in high concentration, and method of use |
| WO2016176906A1 (en) * | 2015-05-07 | 2016-11-10 | 浙江大学 | Method for producing canna indica biochar capable of adsorbing ammonia nitrogen and cadmium simultaneously |
| MX2015011850A (en) * | 2015-09-08 | 2017-03-07 | Benemérita Univ Autónoma De Puebla | Process of manufacturing and regeneration of an adsorbent containing nanoparticles of mixed oxides from ti and si efficient in the cationic dyes adsorption. |
| CN107032438A (en) * | 2017-06-07 | 2017-08-11 | 北京工业大学 | The method that sludge based biomass hydro-thermal carbon adsorbent removes Crystal Violet Dye in water removal |
| CN108178228A (en) * | 2018-01-08 | 2018-06-19 | 北京工业大学 | The method that water hyacinth base hydro-thermal carbon adsorbent removes Crystal Violet Dye in water removal |
| CN109626354A (en) * | 2019-01-31 | 2019-04-16 | 沈阳工业大学 | Charcoal absorbing material based on pomelo peel and preparation method thereof |
| CN111215031A (en) * | 2020-03-18 | 2020-06-02 | 重庆三峡学院 | Preparation method of high-purity biochar |
| CN111334318A (en) * | 2020-03-18 | 2020-06-26 | 重庆三峡学院 | Method for preparing plant-based biochar from single component through biological activation and modification |
| CN113713766A (en) * | 2020-03-18 | 2021-11-30 | 重庆三峡学院 | Preparation method of biochar with excellent adsorption performance |
| CN112062126A (en) * | 2020-09-17 | 2020-12-11 | 常州大学 | Method for preparing biochar from mango peel waste and application |
| CN113231015A (en) * | 2021-04-25 | 2021-08-10 | 衢州学院 | Preparation method of magnetic biochar composite adsorbent and application of magnetic biochar composite adsorbent in water treatment |
| CN113929079A (en) * | 2021-11-19 | 2022-01-14 | 中国科学院生态环境研究中心 | Preparation method and application of biomass charcoal electrode |
Non-Patent Citations (5)
| Title |
|---|
| AHMED EL NEMR: "Removal of direct blue-86 from aqueous solution by new activated carbon developed from orange peel", JOURNAL OF HAZARDOUS MATERIALS, vol. 161, pages 102 - 110, XP025672993, DOI: 10.1016/j.jhazmat.2008.03.060 * |
| VELMURUGAN .P: "Dye removal from aqueous solution using low cost adsorbent", INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCES, vol. 1, no. 7, pages 1492 - 1503 * |
| 李全林等人: "输液的工业生产", 中国医药科技出版社, pages: 104 - 105 * |
| 谢志刚, 刘成伦: "柑桔皮的综合利用新进展", 食品与机械, no. 05 * |
| 黄瑶瑶;: "农业废弃物作为生物质吸附剂对废水处理的研究进展", 应用化工, no. 02 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115304050B (en) | 2024-01-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107694510B (en) | Method for removing methylene blue in printing and dyeing wastewater by two-dimensional magnetic MXene | |
| CN109317183B (en) | Boron nitride quantum dot/ultrathin porous carbon nitride composite photocatalytic material and preparation method and application thereof | |
| CN107866208A (en) | Compound sewage inorganic agent based on modification infusorial earth and its preparation method and application | |
| CN104828780B (en) | Colorful environmentally friendly pearl powder bismuth oxychloride preparation method | |
| CN107540834B (en) | Preparation method and application of photo-promoted ternary composite material | |
| CN106492773B (en) | A kind of photocatalysis loaded article TiO handling waste water from dyestuff2/ As and its preparation method and application | |
| CN109126714B (en) | TiO 22/SiO2-banana peel biochar composite adsorption material and preparation method thereof | |
| CN112516962A (en) | Preparation method of blue algae biochar with rhodamine B adsorption function | |
| CN106698581B (en) | Adsorption treatment method of cationic dye | |
| CN106902758A (en) | A kind of preparation and application of the Graphene adsorbent of aerobic particle mud N doping | |
| CN112473733B (en) | Mo-Eu co-doped titanium dioxide/aluminum phosphate molecular sieve composite photocatalyst and application thereof | |
| CN109351329A (en) | Zeolite modified activated coke adsorption material and preparation method and application thereof | |
| AU2020103640A4 (en) | Porous Biomass Adsorbing Material, And Application Thereof | |
| CN112661228A (en) | Method for purifying rhodamine B dye wastewater | |
| CN110115974B (en) | Decolorizing material, preparation method and application thereof, and wastewater decolorizing method | |
| CN115304050B (en) | Preparation method of citrus peel biochar and application of citrus peel biochar in aspect of wastewater treatment | |
| CN112973632A (en) | Biochar modified based on alkaline solution, and preparation method and application thereof | |
| CN117324040A (en) | Polyimide composite phenylacetylene copper photocatalyst and preparation method and application thereof | |
| CN115193401B (en) | Crystal violet specific adsorption material and preparation method thereof | |
| CN108295678B (en) | Sewage treatment membrane material and preparation method thereof | |
| CN108325496B (en) | Method for synthesizing efficient catalytic degradation methylene blue metal mesoporous silicon oxide through grinding-assisted self-permeation | |
| CN106622167A (en) | Heavy metal adsorption immobilized biological adsorbent and preparation method and application thereof | |
| CN112588270B (en) | Preparation method and application of attapulgite composite adsorbent material | |
| CN106219526B (en) | A kind of method of purification of micro crystal graphite | |
| CN107973366A (en) | One kind utilizes persulfuric acid hydrogen salt and photochemical catalyst BiVO4The method of purifying dyestuff waste water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |