CN111689503A - Nano composite material for paint spraying wastewater treatment, preparation method and application - Google Patents
Nano composite material for paint spraying wastewater treatment, preparation method and application Download PDFInfo
- Publication number
- CN111689503A CN111689503A CN202010408835.6A CN202010408835A CN111689503A CN 111689503 A CN111689503 A CN 111689503A CN 202010408835 A CN202010408835 A CN 202010408835A CN 111689503 A CN111689503 A CN 111689503A
- Authority
- CN
- China
- Prior art keywords
- bentonite
- nanocomposite
- paint spraying
- graphene
- composite material
- 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
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
- C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
- C01B33/44—Products obtained from layered base-exchange silicates by ion-exchange with organic compounds such as ammonium, phosphonium or sulfonium compounds or by intercalation of organic compounds, e.g. organoclay material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- 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
- C01B32/15—Nano-sized carbon materials
- C01B32/182—Graphene
- C01B32/194—After-treatment
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/82—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by IR- or Raman-data
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/85—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by XPS, EDX or EDAX data
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
Abstract
The invention provides a nano composite material for paint spraying wastewater treatment, a preparation method and application thereof, and belongs to the technical field of sewage treatment. It solves the problem that the paint spraying wastewater can not be treated by adopting a simple and cheap method. The preparation method of the nano composite material for treating the paint spraying wastewater comprises the following steps: s1, dispersing graphene in water to form a uniform dispersion liquid A; s2, adding a certain amount of branched polyethyleneimine into the dispersion liquid A to form a uniform mixed liquid B; s3, dispersing bentonite into water to form a dispersion liquid C; and S4, mixing the B and the C, and shaking at room temperature to fully mix, wherein the graphene and the bentonite form the self-assembled nano composite material in the process. Graphite oxide and branch chain polyethyleneimine are mixed at first in this application, have improved the dispersibility of graphite alkene greatly and have made graphite alkene surface area positive point, and in addition, the branch chain gathers with imide can also improve bentonite interlaminar adsorption capacity.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and relates to preparation of a ternary nanocomposite applied to paint spraying wastewater treatment.
Background
The paint spraying wastewater is typical high-concentration organic wastewater, which is derived from a water curtain used in a paint spraying chamber of a paint spraying production line, after the circulating water is used for a long time, a large amount of organic pollutants such as toluene, acrylic resin, butyl acetate, ethyl acetate, auxiliaries and the like are dissolved in the water, the color is brownish red and has strong peculiar smell, and the process requirement of the circulating water of the paint spraying line cannot be met, so that the circulating water becomes the wastewater. If the paint spraying wastewater is not properly treated, environmental pollution can be caused, and ecological safety and human health are seriously influenced. Researches find that the paint spraying wastewater has high COD concentration, complex pollutant components, poor biodegradability and high toxicity and becomes a type of industrial wastewater which is difficult to treat. The current common treatment technologies for paint spraying wastewater comprise a coagulation method, a Fenton oxidation method, an electric flocculation method and a biochemical method. The coagulation method can remove suspended matters and has certain decolorizing capacity, but has no obvious effect on the degradation of organic matters. Although the treatment capacity of the deep chemical oxidation method such as Fenton is strong, the medicament consumption is large, and the ferric hydroxide precipitation and separation are difficult. If the paint spraying wastewater is treated by a biochemical method, a preposed acidolysis oxidation process is needed to improve the biodegradability, but the process conditions are not easy to control, and the treatment effect is poor. In conclusion, the treatment of the paint spraying wastewater is still a difficult problem in the treatment of the wastewater, and a new effective technology needs to be developed urgently.
Chinese patent CN 109248658A discloses a preparation method of graphene organically modified bentonite particles, which is applied to the adsorption of humic acid, and the method adopts organic matters to modify bentonite; then adding graphene and organically modified bentonite under microwave for compounding; and finally, adding starch to prepare the graphene organic modified bentonite particles by high-temperature calcination. The preparation process involves the processes of ultrasonic dispersion and high-temperature calcination, needs to add a starch auxiliary agent, and has the disadvantages of complicated preparation method and high energy consumption. In addition, the starch auxiliary agent can be partially carbonized in the calcining process, the starch is easy to dissolve in water, and the composite material is dissolved in the water solution to cause structural damage, so that the method is not favorable for practical use.
Chinese patent CN 107159118A discloses a preparation method of bentonite grafted graphene oxide, which takes epoxy chloropropane as a cross-linking agent and ammonium sulfate and sodium bisulfate as initiators to prepare a bentonite grafted graphene oxide composite material through organic reaction. The method only carries out organic crosslinking on the surface of bentonite, forms chemical bonds with graphene oxide and carries out grafting reaction. Graphene only covers the surface of bentonite, is easy to form accumulation and agglomeration on the surface of the bentonite, and is not beneficial to the adsorption among bentonite layers. The polymerization reaction involved in the method uses organic reagents such as acetone, epichlorohydrin and the like, and the reaction conditions are not easy to control and are not beneficial to practical use.
Therefore, the graphene-bentonite composite material is prepared by a simple and cheap method, and the intercalation and the stripping of the bentonite and the firm compounding of the bentonite and the graphene are realized, so that the problem which is not solved yet is solved, and the application of the graphene-bentonite composite material in water treatment is limited.
Disclosure of Invention
The first purpose of the invention is to solve the problems of the prior art in treating circulating water for paint spraying, and to provide an economical and effective method for preparing a nano composite material.
The first object of the present invention can be achieved by the following technical solutions:
a preparation method of a nano composite material for paint spraying wastewater treatment is characterized by comprising the following steps:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
and S4, mixing the B and the C, shaking at room temperature, fully mixing, forming a self-assembly nano composite material by the graphene and the bentonite in the process, and filtering, drying and grinding to obtain the graphene/bentonite nano composite material.
The polymer of branched chain polyacetyl imine is used as a surfactant for the first time, so that graphene can be effectively dispersed to be provided with a positive point and is easy to compound with bentonite; and the interlayer can be inserted into the bentonite layer to increase the adsorption area.
In the above method for preparing a nanocomposite for paint spraying wastewater treatment, the filtering in the step S4 is suction filtration.
In the above method for preparing a nanocomposite for paint spraying wastewater treatment, the mixing in step S1 and step S3 are ultrasonic mixing, the ultrasonic power is 300W, and the frequency is 40 KHz.
In the above method for preparing a nanocomposite for paint waste water treatment, the mixing time in the step S1 is 0 to 2 hours, and the mixing time in the step S4 is 1 to 10 hours.
In the above method for preparing a nanocomposite for paint waste water treatment, the drying time in the step S4 is 8 to 10 hours.
In the above method for preparing a nanocomposite for paint spraying wastewater treatment, in step S2, the graphene: the mass ratio of the branched polyethyleneimine is (0.05-5): 10.
in the above method for preparing a nanocomposite for paint spraying wastewater treatment, in step S4, the graphene: branched polyethyleneimine: the mass ratio of the bentonite is (0.05-5): 10:(10-20).
The second purpose of the invention is to solve the problems existing in the prior art when the paint spraying circulating water is treated, and provide a nano composite material capable of flocculating and precipitating paint spraying circulating wastewater.
The second object of the present invention can be achieved by the following technical solutions:
the nano composite material for treating the paint spraying wastewater is characterized by being prepared by the preparation method.
The third purpose of the invention is to solve the problems existing in the prior art when treating the circulating water for paint spraying, and to provide an application of the nano composite material to the flocculation and precipitation of the circulating wastewater for paint spraying.
The third object of the present invention can be achieved by the following technical solutions:
the application of the nano composite material in the flocculation and precipitation of the paint spraying circulating wastewater is characterized in that the prepared nano composite material is added into the paint spraying circulating wastewater, and the pH value of a mixed system is adjusted to 7.
In the application of the nano composite material in the flocculation precipitation of the paint spraying circulating wastewater, the mass concentration of the nano composite material in the wastewater solution is 0.5-2 g/L.
In the application of the nano composite material in the flocculation and precipitation of the paint spraying circulating wastewater, the mass concentration of the paint spraying circulating wastewater is 1000-10000 mg/L.
Compared with the prior art, the graphite oxide and the branched polyethyleneimine are firstly mixed in the application, so that the dispersity of the graphene is greatly improved, and the surface of the graphene is provided with the positive points, so that the graphene is combined with the bentonite more firmly. In addition, the branched polyimide can be inserted into the interlayer of bentonite, so that the interlayer adsorption capacity of the bentonite is improved, and functional active functional groups can be grafted on the surface of the bentonite, so that the removal capacity of organic pollutants is improved. The material has the functions of adsorption and flocculation, and greatly enhances the removal effect of organic components in the paint spraying wastewater.
Drawings
FIG. 1 is an SEM photograph of a bentonite nanocomposite obtained in example 1.
FIG. 2 is an XRD pattern of a bentonite nanocomposite obtained in example 1.
FIG. 3 is a Raman plot of the bentonite nanocomposite obtained in example 1.
FIG. 4 is an XPS plot of a bentonite nanocomposite obtained in example 1.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example 1
Graphene in this example: branched polyethyleneimine: the mass ratio of the bentonite is 0.1: 10:10, the specific embodiment is as follows:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the graphene dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
s4, mixing B and C, shaking at room temperature, fully mixing and keeping for 4-10h, wherein in the process, graphene and bentonite form a self-assembly nano composite material, and the weight ratio of graphene: branched polyethyleneimine: the mass ratio of the bentonite is 0.1: 10:10, then placing the filtered substance in a vacuum drying oven at 60 ℃ for drying for 8-10h, taking out the substance, grinding the substance into powder by using a quartz mortar to obtain the graphene/bentonite nanocomposite (the various characteristics of the material are shown in figures 1-4). When the prepared bentonite nanocomposite is applied to paint spraying circulating wastewater flocculation precipitation, the bentonite nanocomposite is added into 100mL of paint spraying circulating wastewater with the mass concentration of 1000mg/L, the pH value of a mixed system is adjusted to 7, and the reaction is carried out for 1 hour. The total organic carbon analyzer was used to analyze the content of organic substances in the wastewater from the nanocomposite when the mass concentration of the nanocomposite in the wastewater solution was different (the treatment effect is shown in table 1).
TABLE 1
| Concentration of drug (g/L) | COD before treatment (mg/L) | COD after treatment (mg/L) |
| 1.0 | 500000 | 220000 |
| 5.0 | 500000 | 110000 |
| 10.0 | 500000 | 75000 |
Example 2
Graphene in this example: branched polyethyleneimine: the mass ratio of the bentonite is 0.5: 10:10, the specific embodiment is as follows:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the graphene dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
s4, mixing B and C, shaking at room temperature, fully mixing and keeping for 4-10h, wherein in the process, graphene and bentonite form a self-assembly nano composite material, and the weight ratio of graphene: branched polyethyleneimine: the mass ratio of the bentonite is 0.5: and (3) 10:10, drying the filtered substance in a vacuum drying oven at 60 ℃ for 8-10h, taking out the dried substance, and grinding the dried substance into powder by using a quartz mortar to obtain the graphene/bentonite nanocomposite. When the prepared bentonite nanocomposite is applied to paint spraying circulating wastewater flocculation precipitation, the bentonite nanocomposite is added into 100mL of paint spraying circulating wastewater with the mass concentration of 5000mg/L, the pH value of a mixed system is adjusted to 7, and the reaction is carried out for 1 hour. The total organic carbon analyzer was used to analyze the content of organic substances in the wastewater from the nanocomposite when the mass concentration of the nanocomposite in the wastewater solution was different (the treatment effect is shown in table 1).
TABLE 2
| Concentration of drug (g/L) | COD before treatment (mg/L) | COD after treatment (mg/L) |
| 1.0 | 500000 | 120000 |
| 5.0 | 500000 | 75000 |
| 10.0 | 500000 | 11000 |
Example 3
Graphene in this example: branched polyethyleneimine: the mass ratio of the bentonite is 1: 10:10, the specific embodiment is as follows:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the graphene dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
s4, mixing B and C, shaking at room temperature, fully mixing and keeping for 4-10h, wherein in the process, graphene and bentonite form a self-assembly nano composite material, and the weight ratio of graphene: branched polyethyleneimine: the mass ratio of the bentonite is 1: and (3) 10:10, drying the filtered substance in a vacuum drying oven at 60 ℃ for 8-10h, taking out the dried substance, and grinding the dried substance into powder by using a quartz mortar to obtain the graphene/bentonite nanocomposite. When the prepared bentonite nanocomposite is applied to paint spraying circulating wastewater flocculation and precipitation, the bentonite nanocomposite is added into 100mL of paint spraying circulating wastewater with the mass concentration of 10000mg/L, the pH of a mixed system is adjusted to 7, and the reaction is carried out for 1 hour. The total organic carbon analyzer was used to analyze the content of organic substances in the wastewater from the nanocomposite when the mass concentration of the nanocomposite in the wastewater solution was different (the treatment effect is shown in table 1).
TABLE 3
| Concentration of drug (g/L) | COD before treatment (mg/L) | COD after treatment (mg/L) |
| 1.0 | 500000 | 180000 |
| 5.0 | 500000 | 89000 |
| 10.0 | 500000 | 26000 |
Example 4
Graphene in this example: branched polyethyleneimine: the mass ratio of the bentonite is 5: 10:20, the specific embodiment is as follows:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the graphene dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
s4, mixing B and C, shaking at room temperature, fully mixing and keeping for 4-10h, wherein in the process, graphene and bentonite form a self-assembly nano composite material, and the weight ratio of graphene: branched polyethyleneimine: the mass ratio of the bentonite is 1: and (3) 10:10, drying the filtered substance in a vacuum drying oven at 60 ℃ for 8-10h, taking out the dried substance, and grinding the dried substance into powder by using a quartz mortar to obtain the graphene/bentonite nanocomposite. When the prepared bentonite nanocomposite is applied to paint spraying circulating wastewater flocculation and precipitation, the bentonite nanocomposite is added into 100mL of paint spraying circulating wastewater with the mass concentration of 8000mg/L, the pH value of a mixed system is adjusted to 7, and the reaction is carried out for 1 hour. The total organic carbon analyzer was used to analyze the content of organic substances in the wastewater from the nanocomposite when the mass concentration of the nanocomposite in the wastewater solution was different (the treatment effect is shown in table 1).
TABLE 3
| Concentration of drug (g/L) | COD before treatment (mg/L) | COD after treatment (mg/L) |
| 1.0 | 500000 | 290000 |
| 5.0 | 500000 | 79000 |
| 10.0 | 500000 | 36000 |
Example 5
Graphene in this example: branched polyethyleneimine: the mass ratio of the bentonite is 5: 10:20, the specific embodiment is as follows:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the graphene dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
s4, mixing B and C, shaking at room temperature, fully mixing and keeping for 4-10h, wherein in the process, graphene and bentonite form a self-assembly nano composite material, and the weight ratio of graphene: branched polyethyleneimine: the mass ratio of the bentonite is 0.05: and (3) 10:10, drying the filtered substance in a vacuum drying oven at 60 ℃ for 8-10h, taking out the dried substance, and grinding the dried substance into powder by using a quartz mortar to obtain the graphene/bentonite nanocomposite. When the prepared bentonite nanocomposite is applied to paint spraying circulating wastewater flocculation and precipitation, the bentonite nanocomposite is added into 100mL of paint spraying circulating wastewater with the mass concentration of 1000-10000mg/L, the pH value of a mixed system is adjusted to 7, and the reaction is carried out for 1 hour. The total organic carbon analyzer was used to analyze the content of organic substances in the wastewater from the nanocomposite when the mass concentration of the nanocomposite in the wastewater solution was different (the treatment effect is shown in table 1).
TABLE 3
It is to be understood that in the claims, the specification of the present invention, all "including … …" are to be interpreted in an open-ended sense, i.e., in a sense equivalent to "including at least … …", and not in a closed sense, i.e., in a sense not to be interpreted as "including only … …".
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A preparation method of a nano composite material for paint spraying wastewater treatment is characterized by comprising the following steps:
s1, dispersing graphene in water to form a uniform dispersion liquid A;
s2, adding a certain amount of branched polyethyleneimine into the dispersion liquid A to form a uniform mixed liquid B;
s3, dispersing bentonite into water to form a dispersion liquid C;
and S4, mixing the B and the C, shaking at room temperature, fully mixing, forming a self-assembly nano composite material by the graphene and the bentonite in the process, and filtering, drying and grinding to obtain the graphene/bentonite nano composite material.
2. The method for preparing a nanocomposite for paint spraying wastewater treatment according to claim 1, wherein the filtering in the step S4 is suction filtration.
3. The method of preparing a nanocomposite for paint waste water treatment according to claim 1 or 2, wherein the mixing in step S1 and step S3 are ultrasonic mixing at 300W and 40KHz frequency.
4. The method of preparing a nanocomposite for paint waste water treatment according to claim 1 or 2, wherein the mixing time in the step S1 is 0 to 2 hours, and the mixing time in the step S4 is 1 to 10 hours.
5. The method for preparing a nanocomposite for paint waste water treatment according to claim 1 or 2, wherein the drying time in the step S4 is 8 to 10 hours.
6. The method for preparing a nanocomposite for paint spraying wastewater treatment according to claim 1, wherein in the step S2, the graphene: the mass ratio of the branched polyethyleneimine is (0.05-5): 10.
7. the method for preparing a nanocomposite for paint spraying wastewater treatment according to claim 6, wherein in the step S4, the graphene: branched polyethyleneimine: the mass ratio of the bentonite is (0.05-5): 10:(10-20).
8. A nanocomposite material for water treatment, characterized in that it is produced by the production method as claimed in claims 1 to 7.
9. Use of a nanocomposite for flocculation precipitation in paint spraying circulation waste water, characterized in that the nanocomposite prepared according to claim 8 is added to paint spraying circulation waste water and the pH of the mixed system is adjusted to 7.
10. The use of a nanocomposite material according to claim 9 for flocculating and precipitating paint spraying circulation wastewater, wherein the mass concentration of the nanocomposite material in the wastewater solution is 0.5-2 g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408835.6A CN111689503B (en) | 2020-05-14 | 2020-05-14 | Nano composite material for paint spraying wastewater treatment, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010408835.6A CN111689503B (en) | 2020-05-14 | 2020-05-14 | Nano composite material for paint spraying wastewater treatment, preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111689503A true CN111689503A (en) | 2020-09-22 |
| CN111689503B CN111689503B (en) | 2021-09-24 |
Family
ID=72477777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010408835.6A Active CN111689503B (en) | 2020-05-14 | 2020-05-14 | Nano composite material for paint spraying wastewater treatment, preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111689503B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120277360A1 (en) * | 2010-10-28 | 2012-11-01 | Vorbeck Materials Corp. | Graphene Compositions |
| CN104437359A (en) * | 2014-10-17 | 2015-03-25 | 西华师范大学 | Preparation method and application of composite bentonite for wastewater treatment |
| CN105038222A (en) * | 2015-08-11 | 2015-11-11 | 河南科技大学 | Graphene/PEI (polyethyleneimine) gas barrier composite membrane and preparing method of graphene/PEI gas barrier composite membrane |
| CN108940194A (en) * | 2018-06-22 | 2018-12-07 | 西南科技大学 | A kind of graphene oxide/modification clay multidimensional composite material and preparation method |
| CN109248658A (en) * | 2018-09-28 | 2019-01-22 | 芜湖市鹏磊新材料有限公司 | A kind of production method of the graphene organic modified bentonite particle handled for humic acid in water |
| CN109734145A (en) * | 2019-03-25 | 2019-05-10 | 新乡学院 | A kind for the treatment of of dyeing wastewater composite flocculation agent |
| US20190292074A1 (en) * | 2014-06-06 | 2019-09-26 | University Of Houston System | Porous nanocomposite polymer hydrogels for water treatment |
-
2020
- 2020-05-14 CN CN202010408835.6A patent/CN111689503B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120277360A1 (en) * | 2010-10-28 | 2012-11-01 | Vorbeck Materials Corp. | Graphene Compositions |
| US20190292074A1 (en) * | 2014-06-06 | 2019-09-26 | University Of Houston System | Porous nanocomposite polymer hydrogels for water treatment |
| CN104437359A (en) * | 2014-10-17 | 2015-03-25 | 西华师范大学 | Preparation method and application of composite bentonite for wastewater treatment |
| CN105038222A (en) * | 2015-08-11 | 2015-11-11 | 河南科技大学 | Graphene/PEI (polyethyleneimine) gas barrier composite membrane and preparing method of graphene/PEI gas barrier composite membrane |
| CN108940194A (en) * | 2018-06-22 | 2018-12-07 | 西南科技大学 | A kind of graphene oxide/modification clay multidimensional composite material and preparation method |
| CN109248658A (en) * | 2018-09-28 | 2019-01-22 | 芜湖市鹏磊新材料有限公司 | A kind of production method of the graphene organic modified bentonite particle handled for humic acid in water |
| CN109734145A (en) * | 2019-03-25 | 2019-05-10 | 新乡学院 | A kind for the treatment of of dyeing wastewater composite flocculation agent |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111689503B (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Huang et al. | Coagulation treatment of swine wastewater by the method of in-situ forming layered double hydroxides and sludge recycling for preparation of biochar composite catalyst | |
| CN108745396B (en) | Water treatment method by catalytic oxidation of nano-confined zero-valent iron @ spindle-type porous carbon | |
| CN107715700B (en) | Corrosion-resistant and stain-resistant membrane for treating high-salinity wastewater and preparation method and application thereof | |
| CN107311387B (en) | A kind of deep treatment method of dyeing waste water | |
| CN104258816B (en) | The preparation method of the exfoliated Nano composite material of montmorillonite of a kind of magnetic for wastewater treatment | |
| CN113333007B (en) | Nitrogen-doped cobalt iron/carbon catalyst capable of efficiently activating persulfate and preparation method and application thereof | |
| CN111018037B (en) | Method for removing heavy metal mercury ions in water based on polyacrylonitrile nano-film compound | |
| CN111672480A (en) | Crosslinked chitosan-multi-carbon nanotube composite material and application thereof | |
| CN104324702A (en) | Preparation method of sodium alginate-lignin composite gel beads | |
| CN103816903A (en) | Synthetic method of iron-based magnetic nano goethite | |
| CN111689503B (en) | Nano composite material for paint spraying wastewater treatment, preparation method and application | |
| CN113680324A (en) | Graphene oxide-magnetic nanoparticle-sludge composite adsorbent and preparation method and application thereof | |
| CN107159175B (en) | It is a kind of using sub- titanium oxide as the catalytic ozonization water treatment method of catalyst | |
| CN113559839B (en) | Preparation method of paper mill coagulation solid waste-based catalyst, product and application thereof | |
| CN114590880A (en) | Coagulation water treatment method for removing micro-plastics | |
| CN105152298A (en) | Preparation method of composite flocculant of garbage leachate | |
| CN105693065B (en) | A kind of method of municipal sludge deep dehydration | |
| CN115569632B (en) | Magnetic activated carbon fiber adsorbent and preparation method thereof | |
| CN112777699B (en) | Composite medicament for advanced treatment of biochemical tail water and preparation method thereof | |
| CN112390453B (en) | Modified magnetic Fe3O4Powder, method for the production thereof and use thereof | |
| CN115043482B (en) | Method for treating livestock and poultry breeding wastewater by persulfate | |
| CN117123254A (en) | Cobalt-nitrogen co-doped carbon nanofiber for high-efficiency peroxymonosulfate catalysis | |
| CN110479268A (en) | A kind of metallic catalyst and preparation method and application for ozonation treatment viscose rayon alkaline waste water | |
| CN117046455A (en) | Coking wastewater defluorinating agent and preparation method thereof | |
| Tie et al. | Performance of Tetracycline Hydrochloride Removal Using Acidized and Magnetized Waterworks Sludge as 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |