CN111644157A - Adsorbent and preparation method and application thereof - Google Patents
Adsorbent and preparation method and application thereof Download PDFInfo
- Publication number
- CN111644157A CN111644157A CN201911392058.4A CN201911392058A CN111644157A CN 111644157 A CN111644157 A CN 111644157A CN 201911392058 A CN201911392058 A CN 201911392058A CN 111644157 A CN111644157 A CN 111644157A
- Authority
- CN
- China
- Prior art keywords
- adsorbent
- printing
- adsorption
- dyeing wastewater
- methylene blue
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003463 adsorbent Substances 0.000 title claims abstract description 80
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000001179 sorption measurement Methods 0.000 claims abstract description 95
- 239000002351 wastewater Substances 0.000 claims abstract description 57
- 238000004043 dyeing Methods 0.000 claims abstract description 44
- 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 abstract description 33
- 229960000907 methylthioninium chloride Drugs 0.000 claims abstract description 33
- 244000288157 Passiflora edulis Species 0.000 claims abstract description 32
- 235000000370 Passiflora edulis Nutrition 0.000 claims abstract description 32
- AXDJCCTWPBKUKL-UHFFFAOYSA-N 4-[(4-aminophenyl)-(4-imino-3-methylcyclohexa-2,5-dien-1-ylidene)methyl]aniline;hydron;chloride Chemical compound Cl.C1=CC(=N)C(C)=CC1=C(C=1C=CC(N)=CC=1)C1=CC=C(N)C=C1 AXDJCCTWPBKUKL-UHFFFAOYSA-N 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 5
- 238000010298 pulverizing process Methods 0.000 claims description 5
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims 1
- 229940052223 basic fuchsin Drugs 0.000 abstract description 25
- 235000013399 edible fruits Nutrition 0.000 abstract description 9
- 235000011925 Passiflora alata Nutrition 0.000 abstract description 8
- 235000011922 Passiflora incarnata Nutrition 0.000 abstract description 8
- 235000013750 Passiflora mixta Nutrition 0.000 abstract description 8
- 235000013731 Passiflora van volxemii Nutrition 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000004065 wastewater treatment Methods 0.000 abstract description 3
- JUQPZRLQQYSMEQ-UHFFFAOYSA-N CI Basic red 9 Chemical compound [Cl-].C1=CC(N)=CC=C1C(C=1C=CC(N)=CC=1)=C1C=CC(=[NH2+])C=C1 JUQPZRLQQYSMEQ-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 206010028813 Nausea Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 238000004626 scanning electron microscopy Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/24—Naturally occurring macromolecular compounds, e.g. humic acids or their derivatives
-
- 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
- C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
-
- 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
-
- 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
- C02F2101/36—Organic compounds containing halogen
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/40—Organic compounds containing sulfur
Landscapes
- Chemical & Material Sciences (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)
- Water Treatment By Sorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides an adsorbent and a preparation method and application thereof, and belongs to the field of printing and dyeing wastewater treatment. The preparation method comprises the following steps: the passion fruit shells are dried and crushed in sequence to obtain the adsorbent. A large amount of passionflower fruit shell waste is generated in China every year, the raw materials are cheap and easy to obtain by using the passionflower fruit shells to prepare the adsorbent, and the passionflower fruit shells have a loose and porous structure after being dried, so that the passionflower fruit shells have good adsorption performance when being used for treating printing and dyeing wastewater. The results of the examples show that the adsorbent prepared by the invention is used for treating simulated basic fuchsin printing and dyeing wastewater, and the adsorption rate is as high as 80-98%; the adsorption rate for treating simulated methylene blue printing wastewater is as high as 85-98%.
Description
Technical Field
The invention relates to the technical field of dye wastewater treatment, in particular to an adsorbent and a preparation method and application thereof.
Background
Along with the development of economy, the individual requirements of people on daily clothes and apparel are higher and higher, the scale of the clothes printing and dyeing industry is larger and larger, and simultaneously, a large amount of printing and dyeing wastewater generated by the industry appears.
Methylene blue and basic fuchsin are widely applied in the printing and dyeing industry, and in research, the methylene blue and the basic fuchsin are contacted to cause dizziness and nausea of people and seriously harm the health of the people. There are currently studies on the treatment of methylene blue and basic fuchsin in wastewater, and there are great developments, among which the adsorption method is widely used in laboratory and industrial treatment, and is a relatively mature, cost-effective and efficient treatment method. The active carbon has obvious porous structure, so that the active carbon is widely used as an adsorbing material in a laboratory, and has the most obvious adsorption efficiency for adsorbing impurities in gas and liquid. However, the use of activated carbon for wastewater treatment is expensive and difficult to popularize industrially. Therefore, the finding of a material which is easy to obtain, low in price and good in adsorption effect as the adsorbent has important significance for realizing industrialization.
Disclosure of Invention
The invention aims to provide an adsorbent which is cheap, easy to obtain and good in adsorption effect, and has a good adsorption effect when used for treating printing and dyeing wastewater.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of an adsorbent, which comprises the following steps: the passion fruit shells are dried and crushed in sequence to obtain the adsorbent.
Preferably, the drying is carried out in a nitrogen atmosphere, the drying temperature is 20-60 ℃, and the drying time is 48-72 hours.
Preferably, before the drying, the passion fruit shells are washed.
Preferably, after the pulverization, the particle size of the adsorbent is less than 60 meshes.
The invention provides the adsorbent prepared by the preparation method in the scheme.
The invention provides application of the adsorbent in the scheme in treatment of printing and dyeing wastewater.
Preferably, the application mode comprises: adding the adsorbent into the printing and dyeing wastewater for adsorption treatment.
Preferably, the printing and dyeing wastewater is alkaline magenta printing and dyeing wastewater or methylene blue printing and dyeing wastewater.
Preferably, when the printing and dyeing wastewater to be treated is alkaline magenta printing and dyeing wastewater, the adding amount of the adsorbent is 2-20 g/L, the adsorption treatment time is 40-80 min, and the adsorption treatment temperature is 20-45 ℃.
Preferably, when the treated printing and dyeing wastewater is methylene blue printing and dyeing wastewater, the addition amount of the adsorbent is 5-32 g/L, the adsorption treatment time is 40-60 min, and the adsorption treatment temperature is 20-45 ℃.
The invention provides a preparation method of an adsorbent, which comprises the following steps: the passion fruit shells are dried and crushed in sequence to obtain the adsorbent. A large amount of passionflower fruit shell waste is generated in China every year, the raw materials are cheap and easy to obtain by using the passionflower fruit shells to prepare the adsorbent, and the passionflower fruit shells have a loose and porous structure after being dried, so that the passionflower fruit shells have good adsorption performance when being used for treating printing and dyeing wastewater. The results of the examples show that the adsorbent prepared by the invention is used for treating simulated basic fuchsin printing and dyeing wastewater, and the adsorption rate is as high as 80-98%; the adsorption rate for treating simulated methylene blue printing wastewater is as high as 85-98%.
In addition, the preparation method of the invention also has the advantages of simplicity and easy popularization.
Drawings
Fig. 1 is an SEM image of the adsorbent prepared in example 1.
Detailed Description
The invention provides a preparation method of an adsorbent, which comprises the following steps: the passion fruit shells are dried and crushed in sequence to obtain the adsorbent.
The present invention preferably sequentially washes and shears the passion fruit shells prior to drying. The invention has no special requirement on the cleaning mode, and can clean the pulp or other impurities adhered to the shell. The invention has no special requirements on the cutting mode and the size after cutting, and aims to cut passion fruit shells into small pieces so as to be beneficial to subsequent drying. The invention has no special requirement on the source of the passion fruit shells, and the passion fruit shells discarded by daily people or processed by factories can be adopted, and the passion fruit shells obtained from other sources can also be adopted.
After obtaining the small passion fruit shells, the invention dries the small passion fruit shells to obtain the dried material.
In the present invention, the drying is preferably performed under a nitrogen atmosphere; the drying temperature is preferably 20-60 ℃, more preferably 25-50 ℃, and more preferably 30 ℃; the drying time is preferably 48-72 hours, and more preferably 48 hours. In the present invention, the drying is preferably drying. After being dried under the conditions, the passion fruit shells have a loose and porous structure, and have an excellent adsorption effect when being used for treating printing and dyeing wastewater.
After the dry material is obtained, the invention crushes the dry material to obtain the adsorbent. The present invention does not require special embodiments of the pulverization, and pulverization methods known to those skilled in the art can be used. After pulverization, the present invention preferably further comprises sieving the pulverized nut shell powder through a 60 mesh sieve to remove larger particles.
The passion fruit shells are used as raw materials for preparing the adsorbent, and because a large amount of passion fruit shell waste is generated every year in China, the raw materials are cheap and easy to obtain, and the passion fruit shells have a loose and porous structure after being dried, so that the passion fruit shells have good adsorption performance when being used for treating printing and dyeing wastewater.
The invention provides the adsorbent prepared by the preparation method in the technical scheme, and the particle size of the adsorbent is preferably smaller than 60 meshes. The adsorbent has a loose porous structure, and has good adsorption performance when used for treating printing and dyeing wastewater
The invention provides application of the adsorbent in the technical scheme in treatment of printing and dyeing wastewater. In the present invention, the manner of application preferably includes: and adding the adsorbent into the printing and dyeing wastewater for adsorption treatment. In the present invention, the dyeing wastewater is preferably basic magenta dyeing wastewater or methylene blue dyeing wastewater. The method has no special requirement on the concentration of the basic fuchsin and the methylene blue in the printing and dyeing wastewater, and the basic fuchsin printing and dyeing wastewater or the methylene blue printing and dyeing wastewater which needs to be treated can be any. The adsorption treatment according to the invention is preferably carried out under shaking conditions. The invention has no special requirement on the oscillation frequency and does not cause liquid splashing.
When the treated printing and dyeing wastewater is alkaline magenta printing and dyeing wastewater, the addition amount of the adsorbent is preferably 2-20 g/L, and more preferably 3 g/L; the time of the adsorption treatment is preferably 40-80 min, and more preferably 40 min; the temperature of the adsorption treatment is preferably 20-45 ℃, and more preferably 25 ℃. In the present invention, the adsorption treatment is preferably performed at a pH of 7 to 8. According to the invention, NaOH and/or HCl are preferably adopted to adjust the pH value of the printing and dyeing wastewater to 7-8. In the invention, the concentration of the basic fuchsin printing and dyeing wastewater is preferably 2-20 g/L.
When the treated printing and dyeing wastewater is methylene blue printing and dyeing wastewater, the addition amount of the adsorbent is preferably 5-32 g/L, and more preferably 5 g/L; the time of the adsorption treatment is preferably 40-80 min, and more preferably 40 min; the temperature of the adsorption treatment is preferably 20-45 ℃, and more preferably 25 ℃. In the invention, the concentration of the methylene blue printing wastewater is preferably 2-20 g/L.
In the present invention, the adsorption treatment is preferably performed at a pH of 6 to 8. According to the invention, NaOH and/or HCl are preferably adopted to adjust the pH value of the printing and dyeing wastewater to 6-8.
The following examples are provided to illustrate the adsorbents of the present invention and their preparation and use in detail, but they should not be construed as limiting the scope of the present invention.
Preparation of the adsorbent
Example 1
Cleaning passion fruit shells with distilled water, cleaning sugar and other fruit components, cutting the cleaned passion fruit shells into small pieces with scissors, collecting the small pieces in a clean drying tray, adjusting the temperature of a drying box to 30 ℃, putting the passion fruit shells into the drying box for drying for 48 hours, finally crushing the dried passion fruit shells into powder with a crusher, screening out larger particles with a 60-mesh fine screen to obtain an adsorbent, putting the adsorbent into a self-sealing bag, and storing in a dry and cool place for later use.
The adsorbent prepared in example 1 was observed by scanning electron microscopy, and the results are shown in fig. 1. As can be seen from FIG. 1, the adsorbent prepared by the invention is a loose porous structure and has excellent adsorption performance.
Application of adsorbent in treatment of methylene blue printing wastewater
Adding 100mL of 5g/L methylene blue wastewater simulation liquid into a 250mL clean conical flask, adding a plurality of g of prepared adsorbent, measuring by using an acidimeter, adjusting the pH value of the prepared adsorbent by using NaOH and HCl, covering a bottle opening by using a sealing film after the adjustment is finished to prevent the solution from overflowing, putting the prepared adsorbent into a constant temperature oscillator for adsorption treatment, controlling the temperature and the time of the adsorption treatment by adjusting the temperature and the oscillation time of the constant temperature oscillator, taking out the conical flask after the oscillation is finished, absorbing supernatant by using an injector, filtering filter residue by using a disposable aqueous phase needle head type filter, and measuring the absorbance of the filter residue. The adsorption rate (decolorization rate) R is calculated according to the formula (1) from the measured absorbance, and the adsorption amount qe (mg.g.) is calculated according to the formula (2)-1)
R＝(c0-ce)/c0×100％ (1)
qe＝(c0-ce)V/m (2)
Wherein c iseConcentration of adsorbed dye solution, mg. L-1；c0Initial concentration of dye, mg. L-1(ii) a m-amount of adsorbent, g; v-volume of solution, L.
Examples 2 to 7 and comparative example 1
The adsorbent prepared in example 1 was added to a methylene blue wastewater simulant having a pH of 7 and a methylene blue concentration of 5g/L according to the procedure applied above, with an adsorption time of 1 hour and an adsorption temperature of 25 ℃ except for the amount of the adsorbent added, the amount of the adsorbent added and the adsorption effect shown in Table 1.
TABLE 1 influence of the amount of adsorbent added on the methylene blue adsorption Effect
| Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Comparative example 1 | |
| Amount of adsorbent added | 0.5g | 1.0g | 1.5g | 2.0g | 3.0g | 3.2g | 0.1g |
| Adsorption rate | 75％ | 82％ | 90％ | 92％ | 90％ | 91％ | 78％ |
The results in table 1 show that the addition amount of the adsorbent has an important influence on the adsorption effect of methylene blue, and when the addition amount of the adsorbent is 0.5-3.2 g, which is reduced to 5-32 g/L, the adsorption efficiency of methylene blue is high.
Examples 8 to 10 and comparative example 2
According to the application steps, the adsorbent prepared in example 1 is added into methylene blue simulated waste liquid with different pH values, the concentration of the methylene blue is 5g/L, the adsorption time is 1h, the adsorption temperature is 25 ℃, the addition amount of the adsorbent is 0.5g, and the specific pH value and the adsorption effect are shown in Table 2.
TABLE 2 influence of pH on the methylene blue adsorption Effect
| Example 8 | Example 9 | Example 10 | Comparative example 2 | |
| pH value | 6 | 7 | 8 | 4 |
| Adsorption rate | 88％ | 85％ | 85％ | 70％ |
The results in table 2 show that pH has an important influence on the adsorption effect of methylene blue, and when pH is 6-8, the adsorption efficiency of methylene blue is high, and pH is too low, which has an adverse effect on the adsorption of methylene blue.
Examples 11 to 15
According to the above application procedure, the adsorbent prepared in example 1 was added to a methylene blue wastewater simulant having a pH of 6 and a methylene blue concentration of 5g/L for an adsorption time of 40min, except that the temperature of the adsorption treatment, the specific adsorption temperature and the adsorption effect were as shown in Table 3.
TABLE 3 influence of adsorption temperature on methylene blue adsorption Effect
| Example 11 | Example 12 | Example 13 | Example 14 | Example 15 | |
| Adsorption temperature | 25℃ | 35℃ | 45℃ | 20℃ | 30℃ |
| Adsorption rate | 92％ | 88％ | 86.5％ | 88％ | 88.5％ |
The results in table 3 show that the adsorbent has a good adsorption effect on methylene blue when the adsorption temperature is 20-45 ℃; the adsorption effect is best when the adsorption temperature is 25 ℃.
Application of adsorbent in treatment of basic fuchsin printing and dyeing wastewater
Adding 100mL of basic fuchsin wastewater simulation liquid with known concentration into a 250mL clean conical flask, adding a plurality of grams of prepared adsorbent, measuring by using an acidimeter, adjusting the pH value of the prepared adsorbent by using NaOH and HCl, covering a bottle opening by using a sealing film after the adjustment is finished to prevent the solution from overflowing, putting the prepared adsorbent into a constant-temperature oscillator for adsorption treatment, controlling the temperature and the time of the adsorption treatment by adjusting the temperature and the oscillation time of the constant-temperature oscillator, taking out the conical flask after the oscillation is finished, absorbing supernatant by using an injector, filtering filter residue by using a disposable aqueous phase needle head type filter, and measuring the absorbance of the filter residue. The adsorption rate to basic fuchsin is calculated in the manner of calculating the adsorption rate in the treatment of methylene blue dyeing wastewater, and the detailed description is omitted.
Examples 16 to 20 and comparative examples 3 to 4
The adsorbent prepared in example 1 was added to a basic fuchsin printing wastewater simulant having a pH of 7 and a basic fuchsin concentration of 5g/L according to the procedure used above, with an adsorption time of 1 hour and an adsorption temperature of 25 ℃ except that the amount of the adsorbent added, the amount of the adsorbent added and the adsorption effect were as shown in Table 4.
TABLE 4 influence of the amount of adsorbent added on the adsorption Effect of basic fuchsin
| Example 16 | Example 17 | Example 18 | Example 19 | Example 20 | Comparative example 3 | Comparative example 4 | |
| Amount of adsorbent added | 0.2g | 0.5g | 1g | 1.5g | 2.0g | 0.1g | 2.5g |
| Adsorption rate | 90％ | 85％ | 88％ | 86％ | 88％ | 50％ | 83％ |
From the results shown in table 4, it is understood that the amount of the adsorbent added has an important influence on the adsorption effect of basic fuchsin, and that the adsorption efficiency of basic fuchsin is high when the amount of the adsorbent added is 0.2 to 2g, that is, the amount of the adsorbent added is 2 to 20 g/L.
Examples 21 to 22 and comparative example 5
According to the above application procedures, the adsorbent prepared in example 1 was added to basic fuchsin simulated waste liquid with different pH values, the basic fuchsin concentration was 3g/L, the adsorption time was 1h, the adsorption temperature was 25 ℃, the addition amount of the adsorbent was 0.3g, and the specific pH values and adsorption effects are shown in Table 5.
TABLE 5 influence of pH on the adsorption Effect of basic fuchsin
| Example 21 | Example 22 | Comparative example 5 | |
| pH value | 7 | 8 | 6 |
| Adsorption rate | 90％ | 89％ | 85％ |
From the results in table 5, it is understood that the pH value has an important influence on the adsorption effect of basic fuchsin, and that the adsorption efficiency of basic fuchsin is high when the pH value is 7 to 8.
Examples 23 to 26 and comparative example 6
The adsorbent prepared in example 1 was added to a 3g/L basic fuchsin wastewater simulant at pH 7 for an adsorption time of 40min according to the procedure used above, except that the temperature of the adsorption treatment, the specific adsorption temperature and the adsorption effect were as shown in Table 6.
TABLE 6 influence of adsorption temperature on the adsorption Effect of basic fuchsin
| Example 23 | Example 24 | Example 25 | Example 26 | Comparative example 6 | |
| Adsorption temperature | 20℃ | 25℃ | 35℃ | 45℃ | 50℃ |
| Adsorption rate | 88％ | 91％ | 90％ | 80％ | 80％ |
From the results in table 6, it is understood that the adsorbent has a good adsorption effect on basic fuchsin at an adsorption temperature of 20 to 45 ℃, and particularly has a best adsorption effect at an adsorption temperature of 25 ℃.
From the above examples, it can be seen that the adsorbent prepared by using passion fruit shells as raw materials has good adsorption effect on methylene blue printing wastewater and basic fuchsin printing wastewater.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for preparing an adsorbent, comprising the steps of: the passion fruit shells are dried and crushed in sequence to obtain the adsorbent.
2. The method according to claim 1, wherein the drying is performed under a nitrogen atmosphere at a temperature of 20 to 60 ℃ for 48 to 72 hours.
3. The method of claim 1, further comprising washing the passion fruit shells prior to drying.
4. The method of claim 1, wherein the particle size of the adsorbent after said pulverizing is less than 60 mesh.
5. The adsorbent prepared by the preparation method of any one of claims 1 to 4.
6. Use of the adsorbent of claim 5 for treating printing and dyeing wastewater.
7. The application according to claim 6, characterized in that the manner of application comprises: adding the adsorbent into the printing and dyeing wastewater for adsorption treatment.
8. Use according to claim 6 or 7, wherein the printing waste water is an alkaline magenta printing waste water or a methylene blue printing waste water.
9. The use according to claim 8, wherein when the printing and dyeing wastewater to be treated is basic magenta printing and dyeing wastewater, the addition amount of the adsorbent is 2 to 20g/L, the adsorption treatment time is 40 to 80min, and the adsorption treatment temperature is 20 to 45 ℃.
10. The use according to claim 8, wherein when the treated printing and dyeing wastewater is methylene blue printing and dyeing wastewater, the addition amount of the adsorbent is 5-32 g/L, the adsorption treatment time is 40-60 min, and the adsorption treatment temperature is 20-45 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392058.4A CN111644157A (en) | 2019-12-30 | 2019-12-30 | Adsorbent and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911392058.4A CN111644157A (en) | 2019-12-30 | 2019-12-30 | Adsorbent and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111644157A true CN111644157A (en) | 2020-09-11 |
Family
ID=72342529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911392058.4A Pending CN111644157A (en) | 2019-12-30 | 2019-12-30 | Adsorbent and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111644157A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112108127A (en) * | 2020-10-15 | 2020-12-22 | 桂林理工大学 | Passion fruit peel adsorption material and preparation method and application thereof |
| CN112354523A (en) * | 2020-10-11 | 2021-02-12 | 桂林理工大学 | Anhydride modified passion fruit peel biological adsorbent and preparation method and application thereof |
| CN112354522A (en) * | 2020-10-10 | 2021-02-12 | 桂林理工大学 | Passion fruit peel adsorbent and preparation method and application thereof |
| CN113842899A (en) * | 2021-11-12 | 2021-12-28 | 西南科技大学 | Method for preparing adsorbent for removing heavy metal in wastewater by utilizing Chinese redbud fruit shell |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201408370A (en) * | 2012-08-20 | 2014-03-01 | Nat Univ Chung Hsing | A porous composite membrane for adsorbing cationic substances in a fluid, and the method of making the same |
| CN105080500A (en) * | 2015-05-18 | 2015-11-25 | 江苏大学 | Natural dye wastewater adsorbent and preparation and application method thereof |
| CN105080499A (en) * | 2015-05-18 | 2015-11-25 | 江苏大学 | Methylene blue dye adsorbent and preparation and application method thereof |
-
2019
- 2019-12-30 CN CN201911392058.4A patent/CN111644157A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201408370A (en) * | 2012-08-20 | 2014-03-01 | Nat Univ Chung Hsing | A porous composite membrane for adsorbing cationic substances in a fluid, and the method of making the same |
| CN105080500A (en) * | 2015-05-18 | 2015-11-25 | 江苏大学 | Natural dye wastewater adsorbent and preparation and application method thereof |
| CN105080499A (en) * | 2015-05-18 | 2015-11-25 | 江苏大学 | Methylene blue dye adsorbent and preparation and application method thereof |
Non-Patent Citations (2)
| Title |
|---|
| FLA´VIO ANDRE´ PAVAN ET AL.,: "Removal of methylene blue dye from aqueous solutions by adsorption using yellow passion fruit peel as adsorbent", 《BIORESOURCE TECHNOLOGY》 * |
| FLAVIO A. PAVAN ET AL.,: "Methylene blue biosorption from aqueous solutions by yellow passion fruit waste", 《JOURNAL OF HAZARDOUS MATERIALS》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112354522A (en) * | 2020-10-10 | 2021-02-12 | 桂林理工大学 | Passion fruit peel adsorbent and preparation method and application thereof |
| CN112354523A (en) * | 2020-10-11 | 2021-02-12 | 桂林理工大学 | Anhydride modified passion fruit peel biological adsorbent and preparation method and application thereof |
| CN112108127A (en) * | 2020-10-15 | 2020-12-22 | 桂林理工大学 | Passion fruit peel adsorption material and preparation method and application thereof |
| CN113842899A (en) * | 2021-11-12 | 2021-12-28 | 西南科技大学 | Method for preparing adsorbent for removing heavy metal in wastewater by utilizing Chinese redbud fruit shell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111644157A (en) | Adsorbent and preparation method and application thereof | |
| CN103920466B (en) | The preparation method of a kind of modified ramie adsorbent and application | |
| WO2020258863A1 (en) | Method for preparing high-efficiency dyeing wastewater adsorbent from waste goat hair | |
| CN109225135A (en) | A kind of modification biological charcoal adsorbent material and preparation method thereof with to Pb in water body2+Removal application | |
| CN103657593B (en) | A kind of method of sunflower seed shell biomass carbon adsorbent, preparation method and removal water Methylene Blue | |
| CN103071463A (en) | Modified peanut shell Pb(II) adsorbent, and preparation method and application thereof | |
| CN106179239A (en) | The preparation method and applications of pomelo peel modified amido functionalization adsorbent | |
| CN110697710B (en) | Bean dreg-based porous carbon material, preparation method and application thereof | |
| CN109173999A (en) | A kind of preparation method and applications of biology carbon microspheres | |
| CN104275159B (en) | Preparation method of modified macadamia shell adsorbent | |
| CN103305492A (en) | Method for extracting high-purity pharmaceutical grade bromelain | |
| CN103657592B (en) | The dye sorbent that a kind of hazelnut shell is made | |
| CN107456950A (en) | A kind of preparation of brewex's grains charcoal and its application in lead waste water | |
| CN103566905A (en) | Modified wood chip adsorbent, and preparation method and application thereof in treating wastewater containing basic dye | |
| CN104353421A (en) | Anti-haze adsorbent and preparation method thereof | |
| CN109911895B (en) | Preparation method of tobacco-based modified activated carbon | |
| CN108295810B (en) | Preparation and application of nano-pore carbon-calcium composite material for quickly and efficiently removing organic pollutants | |
| CN105536716A (en) | Orange peel modified adsorbent material and preparation method thereof | |
| CN108212115A (en) | A kind of method for preparing PM2.5 adsorbents using discarded maize straw | |
| CN106268676B (en) | A kind of method of modifying of tealeaves adsorbent | |
| CN107006753B (en) | Method for removing patulin in apple juice | |
| CN103303906B (en) | Pine nut shell prepares the method for high specific surface micro-pore carbon | |
| CN105174354B (en) | A kind of method that Wastewater Dyes are removed using waste edible fungus gurry | |
| CN104084141B (en) | A kind of preparation method of amino modified macadamia shell adsorbent | |
| CN109126738A (en) | A kind of preparation method of metal ion adsorbent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200911 |