CN112940429A - Photocatalysis nanofiber membrane and sewage equipment - Google Patents
Photocatalysis nanofiber membrane and sewage equipment Download PDFInfo
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- CN112940429A CN112940429A CN202110233147.5A CN202110233147A CN112940429A CN 112940429 A CN112940429 A CN 112940429A CN 202110233147 A CN202110233147 A CN 202110233147A CN 112940429 A CN112940429 A CN 112940429A
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- 239000012528 membrane Substances 0.000 title claims abstract description 84
- 239000010865 sewage Substances 0.000 title claims abstract description 68
- 238000007146 photocatalysis Methods 0.000 title claims abstract description 31
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
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- B01J35/39—
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- B01J35/59—
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- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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- C08J2401/02—Cellulose; Modified cellulose
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
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Abstract
The invention discloses a photocatalytic nanofiber membrane and sewage equipment, wherein the raw materials of the photocatalytic nanofiber membrane comprise, by weight, 3-5 parts of nanocellulose, 15-20 parts of polyvinyl alcohol, 0.3-0.8 part of chitosan, 0.1-0.3 part of hexadecyl trimethyl ammonium bromide and 200 parts of distilled water; according to the invention, the nano-cellulose and the polyvinyl alcohol are organically combined to prepare the high-performance photocatalytic nano-fiber membrane, so that pollutants such as bacteria, viruses and heavy metal ions in sewage can be efficiently filtered, and the treated wastewater can reach the environmental requirement index and can be directly discharged; the photocatalysis nanofiber membrane also has the advantages of good surface hydrophilicity, long service life, easy cleaning and recovery and the like.
Description
Technical Field
The invention relates to the technical field of sewage treatment equipment, in particular to a photocatalytic nanofiber membrane and sewage treatment equipment.
Background
According to the Chinese patent No. CN106219888B, the invention discloses a photocatalytic sewage treatment device, a filter screen, a filler anaerobic bacteria biofilm culturing component and a photocatalytic reaction area are sequentially arranged in a glass tempering tank from a water inlet end to a water outlet end, a filter plate is arranged in the photocatalytic reaction area through a support, the filter plate is parallelly arranged in the glass tempering tank, a plurality of light sources are embedded in the filter plate and transversely arranged, the upper side surface and the lower side surface of the filter plate are respectively protruded and arranged with the filter plate, each light source comprises a lamp holder, a spherical lampshade and an LED lamp tube arranged in the spherical lampshade, an anti-reflection film is arranged on the inner side of the spherical lampshade, the thickness of the anti-reflection film is gradually thinned from the edge to the center, a scattering film is arranged on the outer side of the spherical lampshade, slide rails are symmetrically arranged on the. The light source of the invention has a larger light-emitting angle, the reaction rate is improved, and the self-contained light source cleaning function greatly prolongs the service life of the equipment.
The invention relates to the field of sewage treatment according to the Chinese patent No. CN108328824A, in particular to a photocatalysis sewage treatment device, which comprises a sewage pretreatment device, a sewage filtering device, a drive control device, a photocatalysis box component, a left support component and a right support component, wherein the sewage pretreatment device is fixedly connected to the right support component, and the lower end of the sewage pretreatment device is connected and communicated with the sewage filtering device; the left end of the sewage filtering device is connected to the upper end of the left bracket component in a rotating fit manner; the right end of the sewage filtering device is connected with the middle end of the right bracket component in a rotating fit manner; the right end of the sewage filtering device is connected with a driving control device; the driving control device is fixedly connected to the right bracket component, and the upper end of the driving control device is connected with the sewage pretreatment device; the invention can carry out large-volume impurity filtering treatment, fine solid impurity condensation filtering treatment and photocatalysis treatment on the sewage, can synchronously collect the filtered solid impurities and has better treatment effect.
Along with the continuous development of economy, population growth, especially today of the high-speed development of economy in China, various pollutions are created while benefits are created, and the shortage of water resources becomes a limiting factor for restricting the further development of China. In order to realize sustainable development, the resource recycling of sewage becomes the key for realizing the aim.
The nano-cellulose belongs to renewable resources, is widely applied in the field of microfiltration, mainly aims at sewage purification such as micro-particle filtration, adsorption of bacteria, viruses and heavy metal ions in drinking water, printing and dyeing sewage and the like, can be used as an adsorbent for independent use, or can be organically combined with electrostatic spinning nano-fiber and cellulose nano-fiber to prepare a high-performance nano-fiber composite microfiltration membrane for efficiently filtering pollutants such as bacteria, viruses and heavy metal ions and the like to obtain pure drinking water; for another example, the nano-cellulose is applied to a sewage system and is combined with other filtering links to achieve the purpose of standard discharge of sewage.
Most of the existing sewage treatment technologies utilize a biological degradation method of activated sludge, and the quality of the effluent water of the sewage treated by the method has certain limitations, large material consumption and high cost. However, the existing photocatalysis nanofiber membrane and sewage equipment still have the following problems: there is the sewage treatment phenomenon of the combination formula of not being convenient for to carry out, is unfavorable for carrying out concentrated processing operation, can cause certain inconvenience, still has the inner regulation phenomenon that can't carry out photocatalysis nanofiber membrane adaptation simultaneously, is unfavorable for carrying out holistic sewage treatment, needs to improve.
Disclosure of Invention
The invention aims to provide a photocatalytic nanofiber membrane and sewage equipment to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the photocatalytic nanofiber membrane comprises, by weight, 3-5 parts of nanocellulose, 15-20 parts of polyvinyl alcohol, 0.3-0.8 part of chitosan, 0.1-0.3 part of hexadecyl trimethyl ammonium bromide and 200 parts of distilled water.
A process for extracting nanocellulose from a photocatalytic nanofiber membrane comprises the following steps:
s1, selecting wheat straws, insolating for two days in the sun, adding the wheat straws into a pulverizer, pulverizing, and sieving to obtain straw powder of 80 meshes;
s2, putting the straw powder into a Soxhlet extractor, adding an acetone-petroleum ether mixed solution into the Soxhlet extractor according to the solid-liquid ratio of 1: 8, extracting for 4-6 h, filtering after extraction, and putting filter residues into an oven for drying;
s3, putting the solid dried in the step S2 into a beaker, adding an NaOH solution with the mass fraction of 8% into the beaker according to the solid-to-liquid ratio of 1: 5, soaking for 10-12 hours, then repeatedly washing the filter residue with water until the pH value is neutral, and finally putting the filter residue into an oven to be dried at the temperature of 50-70 ℃;
s4, putting the dried filter residue solid obtained in the step S3 into a 500mL three-neck flask, adding distilled water and 30% hydrogen peroxide by mass into the three-neck flask respectively, putting the three-neck flask into a water bath, stirring for 30-50 min at 90 ℃, filtering after stirring, adding distilled water and sodium chlorite into the filter residue, stirring for 30-40 min at 80 ℃, filtering to obtain filter residue, repeatedly washing with deionized water for 3-5 times, adding distilled water into the washed filter residue, and stirring and mixing to obtain cellulose slurry;
and S5, homogenizing the cellulose pulp for 1-3 times at 16MPa of homogenizing pressure by using a high-pressure homogenizer, then homogenizing for 3-5 times at 65MPa of homogenizing pressure, and freeze-drying the obtained sample to finally obtain the nano-cellulose.
The sewage equipment of the photocatalytic nanofiber membrane comprises an aeration tank device, wherein a photocatalytic treatment device is communicated with the side end of the aeration tank device;
the aeration tank device comprises a first tank plate, a second tank plate and a pressure pump, wherein the first tank plate is arranged on one side of the inner end of the aeration tank device, the side end position of the first tank plate is communicated with the second tank plate, and the side end position of the second tank plate is communicated with the pressure pump;
the photocatalytic treatment device comprises a first treatment structure, a second treatment structure, a third treatment structure and a communicating pipe frame, wherein the second treatment structure is arranged at the front position of the inner end of the photocatalytic treatment device, the rear end position of the second treatment structure is communicated with the communicating pipe frame, one side position of the communicating pipe frame is communicated with the first treatment structure, and the other side position of the communicating pipe frame is communicated with the third treatment structure;
the second treatment structure comprises a blocking waterproof frame and a sewage treatment component, the sewage treatment component is arranged at the bottom of the inner end of the second treatment structure, and the upper end of the sewage treatment component is fixedly connected with the blocking waterproof frame;
the sewage treatment component comprises a communicating treatment piece and an adjusting connecting piece, the communicating treatment piece is arranged at the bottom of the inner end of the sewage treatment component, and the adjusting connecting piece is connected to the upper end of the communicating treatment piece in a sliding manner;
the communicating processing piece comprises an upper mounting part and a lower mounting part, the upper mounting part is arranged at the top of the inner end of the communicating processing piece, and the lower mounting part is fixedly connected to the lower end of the upper mounting part;
the adjusting connecting piece comprises a first smooth rod piece, a connecting pushing piece, a balance connecting rod, a pushing sliding block, a connecting threaded rod and a three-phase asynchronous motor, the three-phase asynchronous motor is installed on one side of the inner end of the adjusting connecting piece, the side end position of the three-phase asynchronous motor is rotatably connected with the connecting threaded rod, the upper end position of the connecting threaded rod is in threaded connection with the connecting pushing piece, the front end position and the rear end position of the connecting pushing piece are symmetrically in sliding connection with the first smooth rod piece, the bottom end position of the connecting pushing piece is fixedly connected with the balance connecting rod, and the side end position of the balance connecting rod is fixedly connected with the pushing;
the upper mounting part comprises a connecting groove frame, an insulating sealing sleeve frame and a communicating support pipe frame, the connecting groove frame is arranged at the top of the inner end of the upper mounting part, the lower end of the connecting groove frame is fixedly connected with the insulating sealing sleeve frame, and the side end of the insulating sealing sleeve frame is communicated with the communicating support pipe frame;
the lower mounting part comprises a first photocatalytic nanofiber membrane block, a second smooth rod piece, a second photocatalytic nanofiber membrane block, a displacement plate block, an insulated sealing lamp tube, a lamp tube support, a mounting and stabilizing frame, a supporting platform and a stabilizing shaft seat, wherein the stabilizing shaft seat is arranged at the bottom end position of the lower mounting part, the side end position of the stabilizing shaft seat is fixedly connected with the mounting and stabilizing frame, the central position of the mounting and stabilizing frame is spliced with the lamp tube support, the central position of the lamp tube support is electrically connected with the insulated sealing lamp tube, the central positions of the mounting and stabilizing frame and the stabilizing shaft seat are fixedly connected with the supporting platform, the upper end position of the supporting platform is slidably connected with the displacement plate block, the upper end position of the displacement plate block is fixedly connected with the second photocatalytic nanofiber membrane block, and the second photocatalytic nanofiber membrane block is symmetrically provided with the first photocatalytic nanofiber membrane block through the supporting platform, the upper end positions of the second photocatalytic nanofiber membrane block and the first photocatalytic nanofiber membrane block are arranged in a sliding connection mode with a second smooth rod piece.
Preferably, the second photocatalytic nanofiber membrane block at the inner end of the lower mounting part is fixedly connected with the pushing sliding block.
Preferably, the position of the outer end of the insulated sealed lamp tube is sleeved with an isolation sleeve.
Preferably, the upper end position of connecting the cell frame is fixed with the waterproof frame of separation and is cup jointed mutually, and the center adopts sealed setting.
Preferably, the communicating pipe frame is connected and arranged by a three-way pipeline.
Preferably, the communicating pipe support is communicated with the pressure pump.
Preferably, the connecting pushing member and the balance connecting rod are in sliding connection with the first smooth rod piece through a connecting threaded rod, and threads on the connecting threaded rod are symmetrically and reversely arranged.
Preferably, the lower mounting portion further comprises an L-shaped connecting frame and a photocatalytic nanofiber membrane, the L-shaped connecting frame is fixedly connected to the side end of the second photocatalytic nanofiber membrane block, and the lower end of the L-shaped connecting frame is fixedly connected to the photocatalytic nanofiber membrane.
Compared with the prior art, the invention has the beneficial effects that:
according to the photocatalytic nanofiber membrane and sewage equipment provided by the invention, the aeration tank device is arranged, so that the aeration tank device can help to perform aeration work at the inner end, contact between sewage and air is realized, quick reaction at the inner end is realized, preliminary sewage treatment work is helped to be performed, and partial impurity elimination work is realized.
Secondly, according to the photocatalytic nanofiber membrane and sewage equipment provided by the invention, the photocatalytic treatment device is installed, the inner ends of the photocatalytic treatment devices are composed of a plurality of groups, and the photocatalytic treatment devices are arranged in a mutual communication manner, so that a plurality of treatment processes can be performed, the sewage can be rapidly treated, the efficient treatment of the sewage can be performed, the efficiency and the quality of the overall treatment can be improved, the quality control of the sewage treatment can be conveniently performed, the overall treatment process can be performed, and the communication with the outside can be conveniently performed.
Thirdly, according to the photocatalytic nanofiber membrane and sewage equipment provided by the invention, the L-shaped connecting frame and the photocatalytic nanofiber membrane are symmetrically arranged and are arranged at the inner end of the lower mounting part, and through the arrangement of the L-shaped connecting frame and the photocatalytic nanofiber membrane, the reaction efficiency can be improved while the internal space is saved, the sewage treatment and processing work can be facilitated, the connection with the inner end of the lower mounting part can be conveniently carried out, and the installation and the arrangement are convenient.
According to the photocatalytic nanofiber membrane and the sewage equipment, provided by the invention, the nanocellulose and the polyvinyl alcohol are organically combined to prepare the high-performance photocatalytic nanofiber membrane, so that pollutants such as bacteria, viruses and heavy metal ions in sewage can be efficiently filtered, and the treated wastewater can reach the environmental requirement index and can be directly discharged; the photocatalysis nanofiber membrane also has the advantages of good surface hydrophilicity, long service life, easy cleaning and recovery and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the extraction process of nano-cellulose according to the present invention;
FIG. 2 is a schematic structural diagram of the main body of the present invention;
FIG. 3 is a schematic structural view of an aeration tank apparatus according to the present invention;
FIG. 4 is a schematic structural view of a photocatalytic treatment apparatus according to the present invention;
FIG. 5 is a schematic diagram of a second processing structure according to the present invention;
FIG. 6 is a schematic view showing the structure of a sewage treatment section according to the present invention;
FIG. 7 is a schematic view of a communicating processing member according to the present invention;
FIG. 8 is a schematic view of the structure of the adjusting linkage of the present invention;
FIG. 9 is a schematic view of the upper mounting portion of the present invention;
FIG. 10 is a schematic view of the construction of the lower mounting portion of the present invention;
fig. 11 is a schematic structural view of a lower mounting portion according to a second embodiment of the present invention.
In the figure: 1-aeration tank means; 2-a photocatalytic treatment device; 3-a first pond plate; 4-a second pond plate; 5-a pressure pump; 6-a first processing structure; 7-a second processing structure; 8-a third processing structure; 9-communicating pipe frames; 10-a barrier waterproof frame; 11-a sewage treatment component; 12-a communicating treatment member; 13-adjusting the connection; 14-an upper mounting portion; 15-lower mounting portion; 16-a first smooth bar; 17-connecting the pushing member; 18-a balancing connecting rod; 19-a push slider; 20-connecting a threaded rod; 21-three-phase asynchronous motor; 22-connecting the slot frame; 23-insulating sealing sleeve frame; 24-a communicating stinger; 25-a first photocatalytic nanofiber membrane block; 26-a second smooth bar; 27-a second photocatalytic nanofiber membrane block; 28-displacement plates; 29-insulated sealed lamp tube; 30-lamp tube support; 31-installing a stabilizing frame; 32-a support platform; 33-stabilizing the shaft seat; 34-L-shaped connecting frames; 35-photocatalytic nanofibrous membrane.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is further described below with reference to the accompanying drawings.
Example 1
The photocatalytic nanofiber membrane comprises, by weight, 4 parts of nanocellulose, 18 parts of polyvinyl alcohol, 0.4 part of chitosan, 0.2 part of hexadecyl trimethyl ammonium bromide and 190 parts of distilled water.
A process for extracting nanocellulose from a photocatalytic nanofiber membrane, as shown in fig. 1, comprising the following steps:
s1, selecting wheat straws, insolating for two days in the sun, adding the wheat straws into a pulverizer, pulverizing, and sieving to obtain straw powder of 80 meshes;
s2, putting the straw powder into a Soxhlet extractor, and mixing the straw powder and the Soxhlet extractor according to a solid-liquid ratio of 1: 8, adding an acetone-petroleum ether mixed solution, extracting for 5 hours, filtering after extraction, and drying filter residues in an oven;
s3, putting the dried solid obtained in the step S2 into a beaker, and mixing the solid and the liquid according to a solid-to-liquid ratio of 1: 5 adding NaOH solution with the mass fraction of 8% into the cup, soaking for 10 hours, repeatedly washing the filter residue with water until the pH value is neutral, and finally putting the filter residue into an oven to be dried at the temperature of 60 ℃;
s4, putting the dried filter residue solid obtained in the step S3 into a 500mL three-neck flask, adding distilled water and 30% hydrogen peroxide by mass into the three-neck flask respectively, putting the three-neck flask into a water bath, stirring for 40min at 90 ℃, filtering after stirring, adding distilled water and sodium chlorite into the filter residue, stirring for 30min at 80 ℃, filtering to obtain filter residue, repeatedly washing the filter residue for 4 times by using deionized water, adding distilled water into the washed filter residue, stirring and mixing to obtain cellulose slurry;
and S5, homogenizing the cellulose pulp for 2 times at 16MPa of homogenizing pressure by using a high-pressure homogenizer, then homogenizing for 4 times at 65MPa of homogenizing pressure, and freeze-drying the obtained sample to finally obtain the nano-cellulose.
Based on the photocatalytic nanofiber membrane, the invention also provides sewage equipment of the photocatalytic nanofiber membrane, which comprises an aeration tank device 1 as shown in figure 2, wherein a photocatalytic treatment device 2 is communicated at the side end position of the aeration tank device 1;
as shown in fig. 3, the aeration tank device 1 comprises a first tank plate 3, a second tank plate 4 and a pressure pump 5, wherein the first tank plate 3 is arranged at one side of the inner end of the aeration tank device 1, the side end position of the first tank plate 3 is communicated with the second tank plate 4, and the side end position of the second tank plate 4 is communicated with the pressure pump 5;
as shown in fig. 4, the photocatalytic treatment device 2 includes a first treatment structure 6, a second treatment structure 7, a third treatment structure 8 and a communicating pipe frame 9, the second treatment structure 7 is arranged at the front position of the inner end of the photocatalytic treatment device 2, the rear end position of the second treatment structure 7 is communicated with the communicating pipe frame 9, one side position of the communicating pipe frame 9 is communicated with the first treatment structure 6, and the other side position of the communicating pipe frame 9 is communicated with the third treatment structure 8;
as shown in fig. 5, the second treatment structure 7 comprises a blocking waterproof frame 10 and a sewage treatment component 11, the sewage treatment component 11 is arranged at the bottom position of the inner end of the second treatment structure 7, and the upper end position of the sewage treatment component 11 is fixedly connected with the blocking waterproof frame 10;
as shown in fig. 6, the sewage treatment part 11 comprises a communicating treatment part 12 and an adjusting connecting part 13, the communicating treatment part 12 is arranged at the bottom position of the inner end of the sewage treatment part 11, and the adjusting connecting part 13 is connected at the upper end position of the communicating treatment part 12 in a sliding way;
as shown in fig. 7, the communicating handling member 12 includes an upper mounting portion 14 and a lower mounting portion 15, the upper mounting portion 14 being provided at a top position of an inner end of the communicating handling member 12, the lower mounting portion 15 being fixedly attached at a lower end position of the upper mounting portion 14;
as shown in fig. 8, the adjusting link 13 includes a first smooth rod 16, a connecting pushing member 17, a balance link 18, a pushing sliding block 19, a connecting threaded rod 20 and a three-phase asynchronous motor 21, the three-phase asynchronous motor 21 is installed at one side of the inner end of the adjusting link 13, the side end of the three-phase asynchronous motor 21 is rotatably connected with the connecting threaded rod 20, the upper end of the connecting threaded rod 2O is in threaded connection with the connecting pushing member 17, the front and rear ends of the connecting pushing member 17 are symmetrically in sliding connection with the first smooth rod 16, the bottom end of the connecting pushing member 17 is fixedly connected with the balance link 18, and the side end of the balance link 18 is fixedly connected with the pushing sliding block 19;
as shown in fig. 9, the upper mounting portion 14 includes a connecting channel frame 22, an insulating sealing sleeve frame 23 and a communicating support frame 24, the connecting channel frame 22 is disposed at the top position of the inner end of the upper mounting portion 14, the lower end position of the connecting channel frame 22 is fixedly connected with the insulating sealing sleeve frame 23, and the side end position of the insulating sealing sleeve frame 23 is communicated with the communicating support frame 24;
as shown in fig. 10, the lower mounting portion 15 includes a first photocatalytic nanofiber membrane 25, a second smooth rod 26, a second photocatalytic nanofiber membrane 27, a displacement plate 28, an insulating sealed lamp tube 29, a lamp tube support 30, a mounting and stabilizing frame 31, a supporting platform 32 and a stabilizing shaft seat 33, the stabilizing shaft seat 33 is disposed at the bottom end of the lower mounting portion 15, the side end of the stabilizing shaft seat 33 is fixedly connected with the mounting and stabilizing frame 31, the center of the mounting and stabilizing frame 31 is inserted into the lamp tube support 30, the center of the lamp tube support 30 is electrically connected with the insulating sealed lamp tube 29, the centers of the mounting and stabilizing frame 31 and the stabilizing shaft seat 33 are fixedly connected with the supporting platform 32, the upper end of the supporting platform 32 is slidably connected with the displacement plate 28, the upper end of the displacement plate 28 is fixedly connected with the second photocatalytic nanofiber membrane 27, the second photocatalytic nanofiber membrane block 27 is symmetrically provided with a first photocatalytic nanofiber membrane block 25 through a supporting platform 32, and the upper end positions of the second photocatalytic nanofiber membrane block 27 and the first photocatalytic nanofiber membrane block 25 are arranged in a sliding connection with a second smooth rod 26.
As shown in fig. 2-10, the second photocatalytic nanofiber membrane block 27 at the inner end of the lower mounting portion 15 is fixedly connected with the pushing sliding block 19, the outer end of the insulated sealed lamp tube 29 is sleeved with the isolation sleeve, the upper end of the connecting groove frame 22 is fixedly sleeved with the blocking waterproof frame 10, the center of the connecting groove frame is sealed, the connecting pipe frame 9 is connected with the three-way pipeline, the connecting branch pipe frame 24 is communicated with the pressure pump 5, the connecting pushing member 17 and the balance connecting rod 18 are slidably connected with the first smooth rod piece 16 through the connecting threaded rod 20, and threads on the connecting threaded rod 20 are symmetrically and reversely arranged.
In the embodiment, when in use, a user firstly conducts sewage to the position of the aeration tank device 1, the aeration tank device 1 is used for aeration, the inner end of the aeration tank device 1 is composed of the first tank plate 3 and the second tank plate 4, the contact area can be enlarged through the first tank plate 3 and the second tank plate 4 to help the aeration, the subsequent conduction work is carried out through the pressure pump 5 at the rear end position, the aeration tank device 1 is communicated with the photocatalytic treatment device 2, the sewage reaches the position of the communicating support pipe frame 24 through the pressure pump 5 and enters the inner end of the photocatalytic treatment device 2 through the communicating support pipe frame 24, then the user can start the lamp tube support 30, the lamp tube support 30 drives the lighting work of the insulating sealing lamp tube 29, so that the light of the insulating sealing lamp tube 29 can be contacted with the first photocatalytic nanofiber membrane block 25 and the second photocatalytic nanofiber membrane block 27, the photocatalysis water purifying device has the advantages that photocatalysis work can be facilitated, the mounting and stabilizing frame 31 and the stabilizing shaft seat 33 at the side end position can assist in integral supporting, inner mounting and setting are achieved, light rays are in contact with the first photocatalysis nanofiber membrane block 25 and the second photocatalysis nanofiber membrane block 27, inner reaction can be achieved, reaction with harmful substances in sewage can be facilitated, purification work of sewage is achieved, the positions of the first photocatalysis nanofiber membrane block 25 and the second photocatalysis nanofiber membrane block 27 can be adjusted through the pushing sliding block 19, the side end of the pushing sliding block 19 is fixedly connected with the connecting pushing piece 17 through the balance connecting rod 18, a user can drive the connecting threaded rod 20 to rotate by starting the three-phase asynchronous motor 21, and due to the thread arrangement of the connecting threaded rod 20, symmetrical movement of the connecting pushing piece 17, the balance connecting rod 18 and the pushing sliding block 19 at two end positions can be achieved, thereby make connecting impeller 17 to carry out the change of position, act on first photocatalysis nanofiber membrane piece 25 and second photocatalysis nanofiber membrane piece 27, realize the regulation of first photocatalysis nanofiber membrane piece 25 and second photocatalysis nanofiber membrane piece 27 position, make and better carry out inner regulation, help carrying out subsequent change and the regulation work of inner contact reaction, handle the back through second processing structure 7, carry out the conduction through intercommunication pipe support 9, reach first processing structure 6 and third processing structure 8 position department, realize the processing setting of second wheel, until handling through first processing structure 6 and third processing structure 8 communicates with the external world, realize holistic processing and processing.
In the use, the position department has cup jointed the spacer sleeve through the outer end of insulating sealed fluorescent tube 29, can realize the water proof work of inner, prevent the phenomenon of water and electricity contact, help improving holistic security level, screw thread through on the connecting threaded rod 20 adopts the reverse setting of symmetry, can realize the subtend regulation of inner, make the first photocatalysis nanofiber membrane piece 25 and the second photocatalysis nanofiber membrane piece 27 of connection can carry out the motion of subtend, prevent the phenomenon of equidirectional motion, adopt the tee bend pipe connection setting through intercommunication pipe support 9, can realize the purpose of intercommunication, realize subsequent multichannel processing treatment purpose, help improving holistic treatment quality.
Example 2
On the basis of embodiment 1, as shown in fig. 11, the lower mounting portion 15 further includes an L-shaped connecting frame 34 and a photocatalytic nanofiber membrane 35, the L-shaped connecting frame 34 is fixedly connected to the side end position of the second photocatalytic nanofiber membrane block 27, and the lower end position of the L-shaped connecting frame 34 is fixedly connected to the photocatalytic nanofiber membrane 35.
This embodiment is when using, the user passes through L type link 34 and photocatalysis nanofiber membrane 35, can carry out the intercommunication setting of inner and sewage, can carry out fixed welding setting with second photocatalysis nanofiber membrane piece 27 through L type link 34, realize mutual connection, carry out specific sewage treatment through photocatalysis nanofiber membrane 35, carry out common processing by photocatalysis nanofiber membrane 35 and second photocatalysis nanofiber membrane piece 27, can make treatment effeciency improve, realize the high efficiency treatment purpose.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The photocatalytic nanofiber membrane is characterized by comprising, by weight, 3-5 parts of nanocellulose, 15-20 parts of polyvinyl alcohol, 0.3-0.8 part of chitosan, 0.1-0.3 part of hexadecyl trimethyl ammonium bromide and 200 parts of distilled water.
2. The extraction process of the nanocellulose in the photocatalytic nanofiber membrane as claimed in claim 1, characterized by comprising the following steps:
s1, selecting wheat straws, insolating for two days in the sun, adding the wheat straws into a pulverizer, pulverizing, and sieving to obtain straw powder of 80 meshes;
s2, putting the straw powder into a Soxhlet extractor, adding an acetone-petroleum ether mixed solution into the Soxhlet extractor according to the solid-liquid ratio of 1: 8, extracting for 4-6 h, filtering after extraction, and putting filter residues into an oven for drying;
s3, putting the solid dried in the step S2 into a beaker, adding an NaOH solution with the mass fraction of 8% into the beaker according to the solid-to-liquid ratio of 1: 5, soaking for 10-12 hours, then repeatedly washing the filter residue with water until the pH value is neutral, and finally putting the filter residue into an oven to be dried at the temperature of 50-70 ℃;
s4, putting the dried filter residue solid obtained in the step S3 into a 500mL three-neck flask, adding distilled water and 30% hydrogen peroxide by mass into the three-neck flask respectively, putting the three-neck flask into a water bath, stirring for 30-50 min at 90 ℃, filtering after stirring, adding distilled water and sodium chlorite into the filter residue, stirring for 30-40 min at 80 ℃, filtering to obtain filter residue, repeatedly washing with deionized water for 3-5 times, adding distilled water into the washed filter residue, and stirring and mixing to obtain cellulose slurry;
and S5, homogenizing the cellulose pulp for 1-3 times at 16MPa of homogenizing pressure by using a high-pressure homogenizer, then homogenizing for 3-5 times at 65MPa of homogenizing pressure, and freeze-drying the obtained sample to finally obtain the nano-cellulose.
3. The photocatalytic nanofiber membrane sewage plant according to claim 1, comprising an aeration tank device (1), characterized in that: a photocatalytic treatment device (2) is communicated with the side end of the aeration tank device (1);
the aeration tank device (1) comprises a first tank plate (3), a second tank plate (4) and a pressure pump (5), wherein the first tank plate (3) is arranged on one side of the inner end of the aeration tank device (1), the side end position of the first tank plate (3) is communicated with the second tank plate (4), and the side end position of the second tank plate (4) is communicated with the pressure pump (5);
the photocatalytic treatment device (2) comprises a first treatment structure (6), a second treatment structure (7), a third treatment structure (8) and a communication pipe frame (9), wherein the second treatment structure (7) is arranged at the front position of the inner end of the photocatalytic treatment device (2), the rear end of the second treatment structure (7) is communicated with the communication pipe frame (9), one side of the communication pipe frame (9) is communicated with the first treatment structure (6), and the other side of the communication pipe frame (9) is communicated with the third treatment structure (8);
the second treatment structure (7) comprises a blocking waterproof frame (10) and a sewage treatment component (11), the sewage treatment component (11) is arranged at the bottom of the inner end of the second treatment structure (7), and the upper end of the sewage treatment component (11) is fixedly connected with the blocking waterproof frame (10);
the sewage treatment component (11) comprises a communicating treatment piece (12) and an adjusting connecting piece (13), the communicating treatment piece (12) is arranged at the bottom of the inner end of the sewage treatment component (11), and the adjusting connecting piece (13) is connected to the upper end of the communicating treatment piece (12) in a sliding manner;
the communicating processing piece (12) comprises an upper mounting part (14) and a lower mounting part (15), the upper mounting part (14) is arranged at the top position of the inner end of the communicating processing piece (12), and the lower mounting part (15) is fixedly connected to the lower end position of the upper mounting part (14);
the adjusting connecting piece (13) comprises a first smooth rod piece (16), a connecting pushing piece (17), a balance connecting rod (18), a pushing sliding block (19), a connecting threaded rod (20) and a three-phase asynchronous motor (21), the three-phase asynchronous motor (21) is arranged on one side of the inner end of the adjusting connecting piece (13), the side end position of the three-phase asynchronous motor (21) is rotationally connected with the connecting threaded rod (20), the upper end of the connecting threaded rod (20) is in threaded connection with the connecting pushing piece (17), the front end and the rear end of the connecting pushing piece (17) are symmetrically connected with a first smooth rod piece (16) in a sliding way, the bottom end position of the connecting pushing piece (17) is fixedly connected with a balance connecting rod (18), the side end position of the balance connecting rod (18) is fixedly connected with the pushing sliding block (19);
the upper mounting part (14) comprises a connecting groove frame (22), an insulating sealing sleeve frame (23) and a communicating support pipe frame (24), the connecting groove frame (22) is arranged at the top of the inner end of the upper mounting part (14), the lower end of the connecting groove frame (22) is fixedly connected with the insulating sealing sleeve frame (23), and the side end of the insulating sealing sleeve frame (23) is communicated with the communicating support pipe frame (24);
the lower mounting part (15) comprises a first photocatalytic nanofiber membrane block (25), a second smooth rod piece (26), a second photocatalytic nanofiber membrane block (27), a displacement plate block (28), an insulating sealed lamp tube (29), a lamp tube support (30), a mounting and stabilizing frame (31), a supporting platform (32) and a stabilizing shaft seat (33), wherein the stabilizing shaft seat (33) is arranged at the bottom end position of the lower mounting part (15), the side end position of the stabilizing shaft seat (33) is fixedly connected with the mounting and stabilizing frame (31), the central position of the mounting and stabilizing frame (31) is spliced with the lamp tube support (30), the central position of the lamp tube support (30) is electrically connected with the insulating sealed lamp tube (29), and the central positions of the mounting and stabilizing frame (31) and the stabilizing shaft seat (33) are fixedly connected with the supporting platform (32), the upper end position sliding connection of supporting platform (32) has displacement plate (28), the upper end position and the second photocatalysis nanofiber membrane piece (27) looks fixed connection of displacement plate (28), second photocatalysis nanofiber membrane piece (27) are equipped with first photocatalysis nanofiber membrane piece (25) through supporting platform (32) symmetry, the upper end position department and the smooth member of second (26) looks sliding connection setting of second photocatalysis nanofiber membrane piece (27) and first photocatalysis nanofiber membrane piece (25).
4. The apparatus of claim 3, wherein the apparatus comprises: the second photocatalytic nanofiber membrane block (27) at the inner end of the lower mounting part (15) is fixedly connected with the pushing sliding block (19).
5. The apparatus of claim 4, wherein the photocatalytic nanofiber membrane is used for sewage treatment, and the apparatus comprises: the outer end of the insulated sealed lamp tube (29) is sleeved with an isolation sleeve.
6. The apparatus of claim 5, wherein the apparatus comprises: the upper end position of connecting slot frame (22) is fixed with waterproof frame of separation (10) mutually and cup joints, and the center adopts sealed the setting.
7. The apparatus of claim 6, wherein the apparatus comprises: the communicating pipe frame (9) is connected and arranged by a three-way pipeline.
8. The apparatus of claim 7, wherein the apparatus comprises: the communicating pipe support (24) is communicated with the pressure pump (5).
9. The apparatus of claim 8, wherein the apparatus comprises: the connecting pushing piece (17) and the balance connecting rod (18) are in sliding connection with the first smooth rod piece (16) through a connecting threaded rod (20), and threads on the connecting threaded rod (20) are symmetrically and reversely arranged.
10. The apparatus for wastewater treatment with photocatalytic nanofiber membrane as claimed in claim 9, wherein: the lower mounting portion (15) further comprises an L-shaped connecting frame (34) and a photocatalytic nanofiber membrane (35), the L-shaped connecting frame (34) is fixedly connected to the position of the side end of the second photocatalytic nanofiber membrane block (27), and the lower end of the L-shaped connecting frame (34) is fixedly connected with the photocatalytic nanofiber membrane (35).
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| CN202110233147.5A CN112940429A (en) | 2021-03-03 | 2021-03-03 | Photocatalysis nanofiber membrane and sewage equipment |
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