CN114368830B - Wastewater treatment membrane bioreactor and treatment method - Google Patents
Wastewater treatment membrane bioreactor and treatment method Download PDFInfo
- Publication number
- CN114368830B CN114368830B CN202111583620.9A CN202111583620A CN114368830B CN 114368830 B CN114368830 B CN 114368830B CN 202111583620 A CN202111583620 A CN 202111583620A CN 114368830 B CN114368830 B CN 114368830B
- Authority
- CN
- China
- Prior art keywords
- diaphragm
- membrane
- hole
- groove
- box body
- 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.)
- Active
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention belongs to the technical field of wastewater treatment, and particularly relates to a wastewater treatment membrane bioreactor and a wastewater treatment method, which comprises a tank body and a circulating pump, wherein a water inlet pipe of the circulating pump is communicated with the tank body, and a water outlet pipe of the circulating pump is communicated with the tank body through a filter tank; a group of driving rollers are rotatably connected to the position, close to the top, in the box body, and the driving rollers are driven to rotate through a speed reduction motor; a driven roller is rotatably connected in the box body on one side of the driving roller, and an elastic layer is arranged on the periphery of the driven roller; a diaphragm for wastewater treatment is erected on the driven roller, one end of the diaphragm extends to the bottom of the box body, and the other end of the diaphragm passes through a gap between the driving roller and the driven roller and freely droops after winding around the top of the driven roller; according to the invention, the driving roller drives the driven roller to lift and roll the diaphragm for desilting, so that the sludge adhesion on the diaphragm is reduced, the living environment of a microbial inoculum on the diaphragm is further protected, the poisoning of the diaphragm is reduced, the effective contact area of the diaphragm and sewage is further increased, and the sewage treatment efficiency is increased.
Description
Technical Field
The invention belongs to the technical field of wastewater treatment, and particularly relates to a wastewater treatment membrane bioreactor and a wastewater treatment method.
Background
The sewage treatment or wastewater treatment refers to a treatment process of purifying wastewater or sewage by adopting a physical, chemical or biological method to ensure that the wastewater or sewage reaches the discharge or recycling standard, and is widely applied to various fields of buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like.
A Chinese patent with publication number CN109734198A discloses a dioxygen layer biofilm reactor for wastewater treatment, which comprises a water inlet at the lower part of a container body, a water inlet pump connected with the water inlet through a pipeline, a continuous water outlet arranged at the upper part of the container body, a stirring device arranged at the center of the bottom of the container body cavity, a hollow fiber membrane component used as a biofilm carrier arranged in the container body cavity, an air inlet pipe connected with the lower end of the hollow fiber membrane component, a gas pressure gauge, a gas flow meter and an electric air pump connected with the upstream end of the air inlet pipe in sequence, and a micropore aeration device arranged in the cavity of the container body connected with the upper end of the hollow fiber membrane component through a backflow air pipe, thereby forming an air circulation system; the upper part of the container body is provided with a water circulation outlet, the lower part of the container body is provided with a water circulation inlet, the water circulation outlet is connected with the water circulation inlet through a backflow water pipe, and a circulating water pump is arranged on the backflow water pipe, so that a water circulation system is formed. It is favorable for the full-aerobic denitrifying bacteria to form a double-oxygen layer biological film in the reactor and provides a stable aerobic environment for the double-oxygen layer biological film.
Among the prior art, the biomembrane carries out the biofilm culturing operation of microbial inoculum through the submergence in the culture solution, after the microbial inoculum adsorbs on the diaphragm, places the diaphragm in endless water tank, and then reacts and gets rid of through the nitrogen element impurity in microbial inoculum and the sewage, but because often contain more mud in the sewage, on the diaphragm of mud constantly adhering behind the circulation sewage flow, cause the microbial inoculum poisoning after long-time gathering easily, influence diaphragm and sewage area of contact, influence the treatment effeciency of sewage.
Therefore, the invention provides a wastewater treatment membrane bioreactor and a treatment method.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problem is as follows: the invention relates to a wastewater treatment membrane bioreactor, which comprises a tank body and a circulating pump, wherein a water inlet pipe of the circulating pump is communicated with the tank body, and a water outlet pipe of the circulating pump is communicated with the tank body through a filter tank; a group of driving rollers are rotatably connected to the position, close to the top, in the box body, and the driving rollers are driven to rotate through a speed reduction motor; a driven roller is rotatably connected in the box body on one side of the driving roller, and an elastic layer is arranged on the periphery of the driven roller; a diaphragm for wastewater treatment is erected on the driven roller, one end of the diaphragm extends to the bottom of the box body, and the other end of the diaphragm passes through a gap between the driving roller and the driven roller and winds around the top of the driven roller and then freely droops; when the sewage treatment device works, in the prior art, a biological membrane is immersed in a culture solution to carry out membrane hanging operation of a microbial inoculum, after the microbial inoculum is adsorbed on the membrane, the membrane is placed in a circulating water tank, and then the microbial inoculum reacts with nitrogen element impurities in sewage and is removed, but the sewage often contains more sludge, and the sludge is easy to cause microbial inoculum poisoning after flowing along with the circulating sewage and affects the contact area of the membrane and the sewage after being accumulated for a long time, so that the sewage treatment efficiency is affected; at the moment, the driving roller drives the driven roller to lift and roll the diaphragm to remove mud, so that the sludge adhesion on the diaphragm is reduced, the living environment of a microbial inoculum on the diaphragm is further protected, the poisoning of the diaphragm is reduced, the effective contact area of the diaphragm and sewage is further increased, and the sewage treatment efficiency is increased.
Preferably, reinforcing belts are fixedly connected to two sides of the diaphragm, and a group of through holes are uniformly distributed on the reinforcing belts; a fluted disc is fixedly connected to the driving roller at a position corresponding to the reinforcing belt, and teeth uniformly distributed on the periphery of the fluted disc are meshed with the through holes; the toothed disc drives the tooth tensioning reinforcing belt, so that excessive tensioning and tearing damage to the fragile diaphragm when the driving roller pulls the diaphragm adsorbing sludge is reduced, and the integrity of the diaphragm is further ensured.
Preferably, the membranes are double-layered, tension belts are connected between the double-layered membranes, the tension belts are symmetrically arranged around the central line of the membranes, and the tension belts on the two sides of the symmetrical arrangement are in a herringbone structure; the end part of Zhang Ladai is fixedly connected with the reinforcing belt, and one end of the tensioning belt close to the reinforcing belt is higher than the other end of the tensioning belt; a belt groove is formed in the position, corresponding to the tensioning belt, of the adjacent side of the diaphragm; through the stretch-draw area that the chevron shape was arranged for when the fluted disc drove the strengthening band and goes up, through the assistance of strengthening band, the increase was to carrying the effect of carrying at diaphragm middle part, further disperses the weight of the mud of adhesion on the diaphragm, reduces the damage of diaphragm, and the trough of belt reduces the diaphragm and is crowded bad by the strengthening band when the drive roll.
Preferably, a sliding pipe is sleeved in the driving roller and is communicated with the air pump through an air pipe, and the sliding pipe is fixedly connected with the box body; a first hole is formed in the position, corresponding to the fluted disc, of the sliding pipe, and faces to the direction close to the driven roller; one tooth on the periphery of the fluted disc is provided with a second hole, and the second hole is communicated with the first hole when rotating to a position corresponding to the first hole; a water through hole is formed in the tensioning belt, a group of spray holes are uniformly distributed on the water through hole, and the water through hole is communicated with the side wall of the through hole; the density of the spray holes on the Zhang Ladai is gradually increased from the reinforcing belt to the center line direction of the membrane; through the air pump to the slide pipe air feed, make No. two holes rotate when being close to the position of driven voller with a hole intercommunication, drive roll extrusion diaphragm this moment, make the elastic layer of driven voller periphery sunken and sealed through-hole, compressed air in the slide pipe is through a hole this moment, no. two holes, from the orifice blowout behind through-hole and the limbers, and then drum gas to double-deck diaphragm, increase the fluffy gas permeability of diaphragm, further increase the contact and the treatment effeciency to sewage after the diaphragm is rolled freely drooping and is watered again.
Preferably, a scraping groove which is obliquely arranged is arranged below the driving roller, the section of the scraping groove is of an arc structure, and one side of the scraping groove is abutted against the diaphragm; a sludge discharge hole is formed in the box body corresponding to the lower end of the scraping groove; a groove is formed in the inner periphery of the scraping groove along the axial direction of the driving roller, and the top of the groove is connected with permeable cloth in a sealing mode; two ends of the groove are respectively communicated with a water supply pipe and a water drainage pipe; through scraping the groove and collecting mud, reduce the interior sewage of mud secondary pollution box, simultaneously through to water injection in the recess, when rivers flow to lower one end, the shake of cloth that permeates water constantly increases, increases the flow velocity of scraping inslot mud, and the rivers of area are pressed simultaneously and are excreted through permeating water for form the water film between mud and the cloth that permeates water, further reduce mud and scrape the frictional force between the groove, accelerate the discharge velocity of mud.
Preferably, the groove is fixedly connected with a swinging block through an elastic rope, the swinging block is of a peanut structure, and the middle part of the swinging block is provided with a necking part; the swinging block is driven to swing continuously through water flow, and the vibrating efficiency of the knocked permeable cloth is further improved by matching with continuous stretching of the elastic rope, so that the discharging speed of sludge is accelerated.
Preferably, a pipeline is communicated with one side of the box body and corresponds to the sludge discharge hole, a bottom hole is formed in the bottom of the pipeline, and the pipeline is connected with a cloth bag through the bottom hole; the sludge is poured into the cloth bag after flowing out through the pipeline, and redundant moisture seeps out through the cloth bag, so that the moisture content in the sludge is further reduced, and the weight of the sludge to be transported and treated is reduced.
Preferably, a rotating cavity is arranged in the middle of the pipeline and is close to the upper part of the pipeline, a rotating disc is rotatably connected in the rotating cavity, a group of blade plates are uniformly distributed on the periphery of the rotating disc, and the outer edges of the blade plates abut against the inner wall of the pipeline; the end part of the pipeline is communicated with a circulating pipe, and the other end of the circulating pipe is communicated with a sliding pipe; the bottom end of the circulating pipe is fixedly connected with filter cloth; the rotating disc drives the blade plate to rotate, so that the blade plate extrudes sludge in the pipeline, part of water in the sludge is filled into the circulating pipe after passing through the filter cloth, and the part of water containing the microbial inoculum passes through the circulating pipe and the sliding pipe, is re-wetted and is filled between the double-layer diaphragms, and the loss of the microbial inoculum on the diaphragms is further reduced.
Preferably, the turntable is provided with a sliding chute at a position corresponding to the blade plate, and the blade plate is embedded into the sliding chute and is in sliding connection with the sliding chute; a return spring is fixedly connected between the blade plate and the bottom of the chute; an arc-shaped guide groove is formed in one side, close to the circulating pipe, of the sliding pipe, and a group of elastic lugs are uniformly distributed in the guide groove; after the blade slides out of the sliding groove and extrudes sludge, the blade is retracted into the sliding groove under the guide of the guide groove, and the end of the blade sweeps through the convex block, so that the blade continuously shakes, the sludge adhered to the blade is reduced, the vibration of the pipeline and the scraping groove is increased, and the sludge collecting efficiency in scraping is further increased.
A wastewater treatment method, which is suitable for the wastewater treatment membrane bioreactor, and comprises the following steps:
s1, filling sewage into a box body, meanwhile, arranging the processed membrane on a driven roller, and rotating a driving roller to enable the membrane to move downwards until the lower edge of the membrane descends to the bottom of the box body;
s2, continuously extracting sewage in the box body through a circulating pump, removing mud through a filter tank, and continuously increasing the circulating flow purification speed of the water body in the box body;
s3, when more sludge is adhered to the diaphragm, the driving roll drives the reinforcing belt and the diaphragm, the grinding diaphragm is upwards lifted and then squeezed by the driving roll to remove the sludge, and the redundant sludge is collected after converging in the scraping groove, so that the contact efficiency of the diaphragm and the sewage is kept.
The invention has the following beneficial effects:
1. according to the wastewater treatment membrane bioreactor and the wastewater treatment method, the driven roller is driven by the driving roller to lift and roll the membrane for desilting, so that the sludge adhesion on the membrane is reduced, the living environment of a microbial inoculum on the membrane is further protected, the membrane poisoning is reduced, the effective contact area of the membrane and sewage is further increased, and the sewage treatment efficiency is increased.
2. According to the wastewater treatment membrane bioreactor and the wastewater treatment method, sludge is collected through the scraping groove, so that the phenomenon that the sludge pollutes sewage in the box body again is reduced, meanwhile, water is injected into the groove, when water flows to the lower end, the shaking of the water permeable cloth is continuously increased, the flowing speed of the sludge in the scraping groove is increased, and meanwhile, the water with pressure flows out through the water permeable cloth, so that a water film is formed between the sludge and the water permeable cloth, the friction force between the sludge and the scraping groove is further reduced, and the discharging speed of the sludge is accelerated.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;
FIG. 3 is a cross-sectional view of the present invention;
FIG. 4 is a schematic view of the construction of the stretch draw tape of the present invention;
FIG. 5 is a cross-sectional view taken at B-B of FIG. 4;
FIG. 6 is an enlarged view of a portion of FIG. 3 at C;
FIG. 7 is a flow chart of a method of the present invention;
in the figure: the device comprises a box body 1, a circulating pump 11, a filter tank 12, a driving roller 13, a driven roller 14, a membrane 15, a reinforcing belt 16, a through hole 17, a fluted disc 18, a tension belt 19, a belt groove 2, a sliding pipe 21, a first hole 22, a second hole 23, a water through hole 24, a spray hole 25, a scraping groove 26, a groove 27, a water permeable cloth 28, an elastic rope 29, a swing block 3, a pipeline 31, a rotation cavity 32, a rotary disc 33, a blade plate 34, a circulating pipe 35, a filter cloth 36, a sliding groove 37, a guide groove 38, a convex block 39 and a bottom hole 4.
Detailed Description
The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood.
Example one
As shown in FIG. 1, the membrane bioreactor for wastewater treatment according to the embodiment of the present invention comprises a tank 1 and a circulation pump 11, wherein a water inlet pipe of the circulation pump 11 is communicated with the tank 1, and a water outlet pipe of the circulation pump 11 is communicated with the tank 1 through a filter tank 12; a group of driving rollers 13 are rotatably connected to the position, close to the top, in the box body 1, and the driving rollers 13 are driven to rotate through a speed reduction motor; a driven roller 14 is rotationally connected in the box body 1 at one side of the driving roller 13, and an elastic layer is arranged on the periphery of the driven roller 14; a diaphragm 15 for wastewater treatment is erected on the driven roller 14, one end of the diaphragm 15 extends to the bottom of the box body 1, and the other end of the diaphragm 15 passes through a gap between the driving roller 13 and the driven roller 14 and freely droops after bypassing the top of the driven roller 14; during work, in the prior art, a biological membrane is immersed in a culture solution to carry out membrane hanging operation of a microbial inoculum, after the microbial inoculum is adsorbed on the membrane 15, the membrane 15 is placed in a circulating water tank, and then the microbial inoculum reacts with nitrogen element impurities in sewage to remove the nitrogen element impurities, but the sewage often contains more sludge which is continuously adhered to the membrane 15 after flowing along with the circulating sewage, so that the microbial inoculum is easily poisoned after long-time accumulation, the contact area of the membrane 15 and the sewage is influenced, and the sewage treatment efficiency is influenced; at the moment, the driving roller 13 drives the driven roller 14 to lift, pull, roll and remove mud from the diaphragm 15, so that the adhesion of the mud to the diaphragm 15 is reduced, the living environment of a microbial inoculum on the diaphragm 15 is further protected, the poisoning of the diaphragm 15 is reduced, the effective contact area of the diaphragm 15 and sewage is further increased, and the sewage treatment efficiency is increased.
As shown in fig. 2, two sides of the membrane 15 are fixedly connected with reinforcing belts 16, and a group of through holes 17 are uniformly distributed on the reinforcing belts 16; a fluted disc 18 is fixedly connected to the driving roller 13 at a position corresponding to the reinforcing belt 16, and teeth uniformly distributed on the periphery of the fluted disc 18 are meshed with the through holes 17; the tooth tensioning reinforcing belt 16 is driven by the fluted disc 18, so that the damage of excessive tensioning and tearing of the fragile diaphragm 15 when the driving roller 13 lifts the diaphragm 15 adsorbed with sludge is reduced, and the integrity of the diaphragm 15 is further ensured.
As shown in fig. 3, the membranes 15 are double-layered, the tension belts 19 are connected between the double-layered membranes 15, the tension belts 19 are symmetrically arranged about the center line of the membranes 15, and the tension belts 19 on the two sides of the symmetrical arrangement are in a herringbone structure; the Zhang Ladai end part is fixedly connected with the reinforcing belt 16, and the Zhang Ladai is higher than the other end part close to one end of the reinforcing belt 16; a belt groove 2 is formed in the position, corresponding to the tensioning belt 19, of one adjacent side of the diaphragm 15; through the stretch-draw area 19 that the chevron shape was arranged for when fluted disc 18 drove reinforcing band 16 and goes up, through reinforcing band 16 supplementary, increase the effect of carrying to diaphragm 15 middle part, further the weight of the mud of adhesion on the dispersion diaphragm 15 reduces the damage of diaphragm 15, and the trough of belt 2 reduces diaphragm 15 and is crowded bad by reinforcing band 16 when passing drive roll 14.
As shown in fig. 2, a sliding pipe 21 is sleeved in the driving roller 13, the sliding pipe 21 is communicated with an air pump through an air pipe, and the sliding pipe 21 is fixedly connected with the box body 1; a first hole 22 is formed in the sliding tube 21 at a position corresponding to the fluted disc 18, and the first hole 22 faces to a direction close to the driven roller 14; a second hole 23 is formed in one tooth on the periphery of the fluted disc 18, and the second hole 23 is communicated with the first hole 22 when rotating to the position corresponding to the first hole 22; a water through hole 24 is formed in the Zhang Ladai, a group of spray holes 25 are uniformly distributed on the water through hole 24, and the water through hole 24 is communicated with the side wall of the through hole 17; the density of the spray holes 25 on the Zhang Ladai is gradually increased from the reinforcing belt 16 to the central line direction of the diaphragm 15; air is supplied to the sliding pipe 21 through the air pump, the second hole 23 is communicated with the first hole 22 when rotating to a position close to the driven roller 14, the driving roller 13 extrudes the membrane 15 at the moment, the elastic layer on the periphery of the driven roller 14 is sunken and seals the through hole 17, compressed air in the sliding pipe 21 is ejected from the spray hole 25 after passing through the first hole 22, the second hole 23, the through hole 17 and the water through hole 24, and then air blowing is carried out on the double-layer membrane 15, the fluffy air permeability of the membrane 15 is increased, and the contact and treatment efficiency of sewage after the membrane 15 is rolled and droops freely and enters water again is further increased.
As shown in fig. 3, a scraping groove 26 is obliquely arranged below the driving roller 13, the section of the scraping groove 26 is of an arc structure, and one side of the scraping groove 26 is abutted against the membrane 15; a sludge discharge hole is formed in the box body 1 at the position corresponding to the lower end of the scraping groove 26; a groove 27 is formed in the inner periphery of the scraping groove 26 along the axial direction of the driving roller 13, and the top of the groove 27 is connected with a permeable cloth 28 in a sealing manner; two ends of the groove 27 are respectively communicated with a water supply pipe and a water discharge pipe; collect mud through scraping groove 26, reduce the sewage in mud recontamination box 1, simultaneously through to water injection in the recess 27, when rivers flow to lower one end, the shake of cloth 28 that permeates water constantly increases, increase the flow rate of mud in scraping groove 26, the rivers of area are pressed simultaneously and are excreted through cloth 28 that permeates water for form the water film between mud and the cloth 28 that permeates water, further reduce mud and scrape the frictional force between the groove 26, accelerate the discharge velocity of mud.
As shown in fig. 2, the groove 27 is fixedly connected with the swing block 3 through an elastic rope 29, the swing block 3 is of a peanut structure, and the middle part of the swing block 3 is provided with a necking part; the swinging block 3 is driven by water flow to swing continuously, and the beating vibration efficiency of the permeable cloth 28 is further increased by matching with the continuous extension and contraction of the elastic rope 29, so that the sludge discharge speed is increased.
A pipeline 31 is communicated with one side of the box body 1 at a position corresponding to the sludge discharge hole, a bottom hole 4 is formed in the bottom of the pipeline 31, and the pipeline 31 is connected with a cloth bag through the bottom hole 4; the sludge is poured into the cloth bag after flowing out through the pipeline 31, and redundant moisture seeps out through the cloth bag, so that the moisture content in the sludge is further reduced, and the weight of the sludge to be transported and treated is reduced.
Example two
As shown in fig. 6, a first comparative example, in which another embodiment of the present invention is: a rotating cavity 32 is arranged in the middle of the pipeline 31 and close to the upper part, a rotating disc 33 is rotatably connected in the rotating cavity 32, a group of blades 34 are uniformly distributed on the periphery of the rotating disc 33, and the outer edges of the blades 34 abut against the inner wall of the pipeline 31; the end part of the pipeline 31 is communicated with a circulating pipe 35, and the other end of the circulating pipe 35 is communicated with the sliding pipe 21; the bottom end of the circulating pipe 35 is fixedly connected with a filter cloth 36; the rotating disc 33 drives the blade plate 34 to rotate, so that the blade plate 34 extrudes the sludge in the pipeline 31, part of water in the sludge is filled into the circulating pipe 35 after being permeated through the filter cloth 36, and the part of water containing the microbial inoculum passes through the circulating pipe 35 and the sliding pipe 21, is re-wetted and is filled between the double-layer diaphragms 15, and the loss of the microbial inoculum on the diaphragms 15 is further reduced.
A sliding groove 37 is formed in the position, corresponding to the blade plate 34, of the turntable 33, and the blade plate 34 is embedded into the sliding groove 37 and is in sliding connection with the sliding groove 37; a return spring is fixedly connected between the blade 34 and the bottom of the chute 37; an arc-shaped guide groove 38 is formed in one side, close to the circulating pipe 35, of the sliding pipe 21, and a group of elastic lugs 39 are uniformly distributed in the guide groove 38; after the blade 34 slides out of the chute 37 and presses the sludge, the blade 34 is retracted into the chute 37 under the guidance of the guide groove 38, and the end of the blade 34 sweeps over the bump 39, so that the blade 34 shakes continuously, the sludge adhered to the blade 34 is reduced, and the vibration of the pipeline 31 and the scraping groove 26 is increased, and the collection efficiency of the sludge in the scraping process is further increased.
As shown in fig. 7, a wastewater treatment method, which is applied to the wastewater treatment membrane bioreactor, comprises the following steps:
s1, filling sewage into a box body 1, meanwhile, arranging a processed membrane 15 on a driven roller 14, and rotating a driving roller 13 to enable the membrane 15 to move downwards until the lower edge of the membrane 15 drops to the bottom of the box body 1;
s2, continuously extracting sewage in the box body 1 through a circulating pump 11, removing mud through a filter tank 12, and continuously increasing the circulating flow purification speed of the water body in the box body 1;
s3, when more sludge is adhered to the membrane 15, the driving roller 13 drives the reinforcing belt 16 and the membrane 15, the grinding membrane 15 is upwards lifted and then squeezed by the driving roller 13 to remove the sludge, and the redundant sludge is converged by the scraping groove 26 and then collected, so that the contact efficiency of the membrane 15 and the sewage is kept.
When the device works, the driving roller 13 drives the driven roller 14 to lift and roll the diaphragm 15 for desilting, so that the adhesion of sludge to the diaphragm 15 is reduced, the living environment of a microbial inoculum on the diaphragm 15 is further protected, the poisoning of the diaphragm 15 is reduced, the effective contact area of the diaphragm 15 and sewage is further increased, and the sewage treatment efficiency is increased; the tooth tensioning reinforcing belt 16 is driven by the fluted disc 18, so that the damage of excessive tensioning and tearing of the fragile diaphragm 15 when the driving roller 13 lifts the diaphragm 15 adsorbed with sludge is reduced, and the integrity of the diaphragm 15 is further ensured; when the fluted disc 18 drives the reinforcing belt 16 to ascend through the tension belt 19 arranged in the herringbone mode, the lifting effect on the middle part of the diaphragm 15 is increased through the assistance of the reinforcing belt 16, the weight of sludge adhered to the diaphragm 15 is further dispersed, the damage of the diaphragm 15 is reduced, and the phenomenon that the diaphragm 15 is extruded by the reinforcing belt 16 when passing through the driving roller 14 is reduced by the belt groove 2; air is supplied to the sliding pipe 21 through the air pump, so that the second hole 23 is communicated with the first hole 22 when rotating to a position close to the driven roller 14, the driving roller 13 presses the membrane 15 at the moment, an elastic layer on the periphery of the driven roller 14 is sunken and seals the through hole 17, and compressed air in the sliding pipe 21 is sprayed out from the spray hole 25 after passing through the first hole 22, the second hole 23, the through hole 17 and the water through hole 24, so that the double-layer membrane 15 is inflated, the fluffy air permeability of the membrane 15 is increased, and the contact and treatment efficiency of the membrane 15 after being rolled, hanging freely and entering water again on sewage is further increased; the sludge is collected through the scraping groove 26, so that the secondary pollution of the sludge to the sewage in the box body 1 is reduced, meanwhile, water is injected into the groove 27, when the water flows to the lower end, the shaking of the permeable cloth 28 is continuously increased, the flowing speed of the sludge in the scraping groove 26 is increased, and meanwhile, the pressurized water flows out through the permeable cloth 28, so that a water film is formed between the sludge and the permeable cloth 28, the friction force between the sludge and the scraping groove 26 is further reduced, and the discharging speed of the sludge is accelerated; the swinging block 3 is driven to swing continuously by water flow, and the beating vibration efficiency of the permeable cloth 28 is further increased by matching with the continuous expansion and contraction of the elastic rope 29, so that the sludge discharge speed is increased; the sludge is poured into the cloth bag after flowing out through the pipeline 31, and redundant moisture seeps out through the cloth bag, so that the moisture content in the sludge is further reduced, and the weight of the sludge to be transported and treated is reduced.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A membrane bioreactor for wastewater treatment is characterized in that: comprises a box body (1) and a circulating pump (11), wherein a water inlet pipe of the circulating pump (11) is communicated with the box body (1), and a water outlet pipe of the circulating pump (11) is communicated with the box body (1) through a filter tank (12); a group of driving rollers (13) are rotatably connected to the position, close to the top, in the box body (1), and the driving rollers (13) are driven to rotate through a speed reduction motor; a driven roller (14) is rotationally connected to the box body (1) on one side of the driving roller (13), and an elastic layer is arranged on the periphery of the driven roller (14); a diaphragm (15) for wastewater treatment is erected on the driven roller (14), one end of the diaphragm (15) extends to the bottom of the box body (1), and the other end of the diaphragm passes through a gap between the driving roller (13) and the driven roller (14) and is wound around the top of the driven roller (14) to hang down freely;
reinforcing belts (16) are fixedly connected to two sides of the diaphragm (15), and a group of through holes (17) are uniformly distributed on each reinforcing belt (16); a fluted disc (18) is fixedly connected to the driving roller (13) at a position corresponding to the reinforcing belt (16), and teeth uniformly distributed on the periphery of the fluted disc (18) are meshed with the through holes (17);
the membrane (15) is double-layer, the tensioning belts (19) are connected between the double-layer membranes (15), the tensioning belts (19) are symmetrically arranged around the center line of the membrane (15), and the tensioning belts (19) on the two sides of the symmetrical arrangement are in a herringbone structure; the end part of Zhang Ladai (19) is fixedly connected with the reinforcing band (16), and one end of the tensioning band (19) close to the reinforcing band (16) is higher than the other end; a belt groove (2) is formed in the position, corresponding to the tensioning belt (19), of one side, adjacent to the membrane (15);
a sliding pipe (21) is sleeved in the driving roller (13), the sliding pipe (21) is communicated with an air pump through an air pipe, and the sliding pipe (21) is fixedly connected with the box body (1); a first hole (22) is formed in the position, corresponding to the fluted disc (18), of the sliding pipe (21), and the first hole (22) faces to the direction close to the driven roller (14); one tooth on the periphery of the fluted disc (18) is provided with a second hole (23), and the second hole (23) is communicated with the first hole (22) when rotating to the position corresponding to the first hole (22); a water through hole (24) is formed in the Zhang Ladai (19), a group of spray holes (25) are uniformly distributed in the water through hole (24), and the water through hole (24) is communicated with the side wall of the through hole (17); the density of the spray holes (25) on the Zhang Ladai (19) is gradually increased from the reinforcing belt (16) to the central line direction of the membrane (15);
a scraping groove (26) which is obliquely arranged is arranged below the driving roller (13), the section of the scraping groove (26) is of an arc structure, and one side of the scraping groove (26) is propped against the diaphragm (15); a sludge discharge hole is formed in the box body (1) at a position corresponding to the lower end of the scraping groove (26); a groove (27) is formed in the inner periphery of the scraping groove (26) along the axial direction of the driving roller (13), and the top of the groove (27) is hermetically connected with a permeable cloth (28); and two ends of the groove (27) are respectively communicated with a water supply pipe and a water discharge pipe.
2. The membrane bioreactor for wastewater treatment according to claim 1, wherein: the groove (27) is fixedly connected with a swing block (3) through an elastic rope (29), the swing block (3) is of a peanut structure, and the middle part of the swing block (3) is provided with a necking part.
3. The membrane bioreactor for wastewater treatment according to claim 1, wherein: a pipeline (31) is communicated with a position, corresponding to the sludge discharge hole, on one side of the box body (1), a bottom hole (4) is formed in the bottom of the pipeline (31), and the pipeline (31) is connected with a cloth bag through the bottom hole (4).
4. The membrane bioreactor for wastewater treatment according to claim 3, wherein: a rotating cavity (32) is arranged in the middle of the pipeline (31) and close to the upper part of the pipeline, a rotating disc (33) is rotatably connected in the rotating cavity (32), a group of blades (34) are uniformly distributed on the periphery of the rotating disc (33), and the outer edges of the blades (34) abut against the inner wall of the pipeline (31); the end part of the pipeline (31) is communicated with a circulating pipe (35), and the other end of the circulating pipe (35) is communicated with the sliding pipe (21); the bottom end of the circulating pipe (35) is fixedly connected with filter cloth (36).
5. The membrane bioreactor for wastewater treatment according to claim 4, wherein: a sliding groove (37) is formed in the position, corresponding to the blade plate (34), of the turntable (33), and the blade plate (34) is embedded into the sliding groove (37) and is in sliding connection with the sliding groove (37); a return spring is fixedly connected between the blade plate (34) and the bottom of the sliding groove (37); an arc-shaped guide groove (38) is formed in one side, close to the circulating pipe (35), of the sliding pipe (21), and a group of elastic lugs (39) are uniformly distributed in the guide groove (38).
6. A wastewater treatment method comprising the wastewater treatment membrane bioreactor according to any one of claims 1 to 5, characterized in that: the method comprises the following steps:
s1, filling sewage into a box body (1), meanwhile, placing a processed membrane (15) on a driven roller (14), and rotating a driving roller (13) to enable the membrane (15) to move downwards until the lower edge of the membrane (15) drops to the bottom of the box body (1);
s2, continuously pumping the sewage in the tank body (1) through a circulating pump (11), removing mud through a filtering tank (12), and continuously increasing the circulating flow purification speed of the water body in the tank body (1);
s3, when more sludge is adhered to the membrane (15), the driving roller (13) drives the reinforcing belt (16) and the membrane (15), the membrane (15) is lifted upwards and then is extruded by the driving roller (13) to remove the sludge, and the redundant sludge is collected after converging through the scraping groove (26), so that the contact efficiency of the membrane (15) and the sewage is maintained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111583620.9A CN114368830B (en) | 2021-12-22 | 2021-12-22 | Wastewater treatment membrane bioreactor and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111583620.9A CN114368830B (en) | 2021-12-22 | 2021-12-22 | Wastewater treatment membrane bioreactor and treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114368830A CN114368830A (en) | 2022-04-19 |
| CN114368830B true CN114368830B (en) | 2023-03-10 |
Family
ID=81140741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111583620.9A Active CN114368830B (en) | 2021-12-22 | 2021-12-22 | Wastewater treatment membrane bioreactor and treatment method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114368830B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115650329B (en) * | 2022-10-26 | 2023-06-30 | 西藏频铭环保科技有限公司 | Water purifier for recycling reservoir resources |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204999678U (en) * | 2015-09-10 | 2016-01-27 | 上海现代建筑设计(集团)有限公司 | Remove device that membrane - bioreactor membrane pollutes |
| CN209923016U (en) * | 2019-05-22 | 2020-01-10 | 东北大学 | Waste water treatment system of enhanced membrane aeration biomembrane reactor |
| CN110818071A (en) * | 2019-12-19 | 2020-02-21 | 韶关市诚湃新能源科技有限公司 | Sewage treatment equipment with membrane bioreactor |
| CN212999373U (en) * | 2020-07-23 | 2021-04-20 | 珠海雅之霖科技有限公司 | Membrane group device for sewage treatment |
| CN214638535U (en) * | 2020-12-23 | 2021-11-09 | 顺平县旺朔环保科技有限公司 | Novel film washing machine |
-
2021
- 2021-12-22 CN CN202111583620.9A patent/CN114368830B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204999678U (en) * | 2015-09-10 | 2016-01-27 | 上海现代建筑设计(集团)有限公司 | Remove device that membrane - bioreactor membrane pollutes |
| CN209923016U (en) * | 2019-05-22 | 2020-01-10 | 东北大学 | Waste water treatment system of enhanced membrane aeration biomembrane reactor |
| CN110818071A (en) * | 2019-12-19 | 2020-02-21 | 韶关市诚湃新能源科技有限公司 | Sewage treatment equipment with membrane bioreactor |
| CN212999373U (en) * | 2020-07-23 | 2021-04-20 | 珠海雅之霖科技有限公司 | Membrane group device for sewage treatment |
| CN214638535U (en) * | 2020-12-23 | 2021-11-09 | 顺平县旺朔环保科技有限公司 | Novel film washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114368830A (en) | 2022-04-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101700472B (en) | Rotary membrane separation device and application thereof | |
| CN202924814U (en) | Anti-fouling and anti-blocking equipment of film filtering device | |
| CN114368830B (en) | Wastewater treatment membrane bioreactor and treatment method | |
| CN208802964U (en) | A kind of Hybrid Biofilm Reactor and bioreactor sewage and wastewater treatment system | |
| CN211999265U (en) | Circulating filter equipment | |
| CN113336360A (en) | Method and device for treating wastewater for industrial production | |
| CN203030195U (en) | Membrane module and dipping membrane device | |
| CN114853289B (en) | Domestic waste filtration liquid high efficiency processing system | |
| CN206570136U (en) | A kind of immersion water purifying device | |
| CN212881267U (en) | River sewage treatment system | |
| CN111762980B (en) | MABR constructed wetland device capable of strengthening treatment | |
| JP2000312815A (en) | Immersible membrane separation device | |
| CN213202507U (en) | Contact oxidation pond convenient to filler adjustment loading and unloading | |
| CN212403884U (en) | MABR constructed wetland device capable of being treated in enhanced mode | |
| CN212712900U (en) | Lake and reservoir water quality purifying device with external circulation biomembrane zone | |
| CN212051015U (en) | Continuous membrane method water treatment equipment device | |
| CN207259193U (en) | A kind of protein separator | |
| CN115259358B (en) | Flat membrane bioreactor | |
| JP3444349B2 (en) | Rotating flat membrane device | |
| CN207918649U (en) | A kind of pretreatment unit of sewage draining exit | |
| CN112051096A (en) | Water quality detection system and detection method | |
| CN206437923U (en) | The water treatment system that a kind of double-layered flat membrane is combined with aerator | |
| CN219194748U (en) | Biological film water treatment purifying equipment | |
| CN215480223U (en) | Moving bed type PRB permeable reactive barrier | |
| CN115057493B (en) | Environment-friendly sewage treatment device based on liquid flow force |
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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A membrane bioreactor for wastewater treatment and its treatment method Effective date of registration: 20230616 Granted publication date: 20230310 Pledgee: Bank of China Limited by Share Ltd. Guangzhou Liwan branch Pledgor: GUANGZHOU SINCERE PROTECTION TECHNOLOGY Co.,Ltd. Registration number: Y2023980044285 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |