CN110980943B - Anaerobic flowing biological membrane reactor - Google Patents
Anaerobic flowing biological membrane reactor Download PDFInfo
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- CN110980943B CN110980943B CN201911287175.4A CN201911287175A CN110980943B CN 110980943 B CN110980943 B CN 110980943B CN 201911287175 A CN201911287175 A CN 201911287175A CN 110980943 B CN110980943 B CN 110980943B
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
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- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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Abstract
The invention discloses an anaerobic flowing biofilm reactor, which relates to the field of sewage treatment and adopts the technical scheme that: the device comprises a cylindrical reaction box, wherein a water inlet area, a reaction area, a precipitation area and a water outlet area are arranged in the reaction box, a three-phase separator is arranged in the water outlet area, the three-phase separator is inserted into the precipitation area, a filler carrier is arranged in the reaction area, the bottom of the reaction box is communicated with a water inlet pipe, the water inlet pipe is coaxially and rotatably connected to the reaction box, and a driving assembly is arranged on the reaction box; one end of the water inlet pipe, which is positioned in the reaction box, is uniformly communicated with a plurality of water outlet rods along the circumferential direction, and each water outlet rod is obliquely and upwards arranged towards the direction far away from the axis of the water inlet pipe; the reaction zone is provided with a baffling ring near the precipitation zone, and the end surface of the baffling ring near the water inlet zone is arranged downwards in an inclined manner towards the axis near the reaction box. The water outlet rod and the baffle ring are arranged, so that the mixing effect of the filler carrier and the sewage is better, and the pollutant in the sewage is degraded more thoroughly.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to an anaerobic type flowing bio-membrane reactor.
Background
A flowing biomembrane reactor is an improved novel composite biomembrane reactor developed on the basis of a fixed bed reactor, a fluidized bed reactor and a biofilter. The method overcomes the defects that a fixed bed reactor needs regular back flushing, a fluidized bed reactor needs carrier fluidization, and a submerged biological filter is blocked and needs to be cleaned and an aerator needs to be replaced, and also keeps the characteristics of impact load resistance, low sludge yield and long sludge age of the traditional biofilm method. The main principle is that after sewage continuously flows through a reactor filler carrier, a biofilm is formed on the carrier, and microorganisms propagate and grow on the biofilm in a large quantity. The biological membrane grows on the smaller carrier unit, and the carrier freely moves along with water flow in the reactor to degrade organic pollutants in the sewage, so that the sewage purification effect is achieved. The flow biofilm reactors generally include anaerobic, facultative, and aerobic types.
The current chinese utility model patent like patent publication No. CN209442728U, this patent discloses a sewage anaerobic reactor of embedding fibrous filler biomembrane, including UASB reactor and solid fiber filler pall ring, the inside air chamber that is provided with of UASB reactor, settling zone and reaction zone, the reaction zone is mud suspension layer district and sludge bed district respectively, it has three-phase separator to insert in the air chamber, and three-phase separator inserts in the settling zone, the embedding has solid fiber filler in the mud suspension district, solid fiber filler arranges on a set of solid fiber filler pall ring, solid fiber rope has been inserted to the centre of a circle department of a set of solid fiber filler pall ring, fiber filler installation baffle is passed at the top of solid fiber rope, the bottom of UASB reactor has former waste water pipe.
When adopting above-mentioned reactor to carry out water treatment, sewage gets into from the former feed pipe of bottom, and sewage flows upwards after entering into in the UASB reactor, but this process sewage mixes through solid fiber filler pall ring of flowing through, leads to the mixed effect of sewage and carrier not good easily, influences the degradation of microorganism to pollutant in the sewage easily, and is more troublesome, awaits improving.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the anaerobic type flowing biofilm reactor which has the advantages that sewage and a carrier are mixed more fully, and pollutants in the sewage are degraded more thoroughly.
In order to achieve the purpose, the invention provides the following technical scheme:
an anaerobic type flowing biofilm reactor comprises a cylindrical reaction box, wherein the reaction box comprises a water inlet area, a reaction area, a precipitation area and a water outlet area which are communicated from bottom to top, a three-phase separator is arranged in the water outlet area, the three-phase separator is inserted into the precipitation area, a small granular filler carrier is arranged in the reaction area, the bottom of the reaction box is communicated with a water inlet pipe, the water inlet pipe is coaxially and rotatably connected to the reaction box, and a driving component for driving the water inlet pipe to rotate is arranged on the reaction box; one end of the water inlet pipe, which is positioned in the reaction box, is uniformly communicated with a plurality of water outlet rods along the circumferential direction, the water outlet rods are arranged in the water inlet area, each water outlet rod is obliquely and upwards arranged towards the direction far away from the axis of the water inlet pipe, and one end of each water outlet rod, which is far away from the water inlet pipe, is provided with an opening; the reaction zone is provided with a baffling ring near the precipitation zone, and the end face of the baffling ring near the water inlet zone is arranged downwards in an inclined manner near the axis of the reaction tank.
Through the technical scheme, when adopting above-mentioned anaerobism type flowing biofilm reactor, sewage is leading-in through the inlet tube, sewage rethread goes out the opening discharge of water pole, water is in a water pole exhaust, drive assembly can drive the inlet tube and rotate, thereby make the water pole of inlet tube upper end rotate along the inlet tube axis, make sewage flow along the slope to the upper direction along the inner wall of reactor, when rivers flow to baffling ring department, be close to the direction of intaking district terminal surface through the baffling ring, make sewage can flow to intaking district, thereby make intaking district and reaction zone can flow backward, thereby make sewage and the contact of filler carrier more abundant lasting, thereby make the contact of pollutant also filler carrier in the sewage more abundant. Meanwhile, the sewage flow can impact the filler carrier due to the guiding of the baffling ring, so that the filler carrier is not directly upwards moved along with the sewage in a single direction, the mixing effect of the filler carrier and the sewage is better, and pollutants in the sewage are degraded more thoroughly.
Furthermore, the end face of the baffling ring far away from the water inlet area is arranged in a horizontal plane, and the end face of the baffling ring close to the water inlet area is in circular arc transition with the reaction box.
Through the technical scheme, the baffling ring can guide the flow of sewage in the flowing direction more sufficiently due to the arrangement of arc transition.
Further, the lateral wall fixedly connected with stirring board of inlet tube, the stirring board is the slope setting for the inlet tube axis, just the lower terminal surface of stirring board is contradicted in the lower extreme inner wall setting of reaction box, and when the inlet tube rotated and is driven the stirring board and rotate, the stirring board was raised the pollutant of reaction box bottom.
Through above-mentioned technical scheme, set up the stirring board, when the inlet tube rotates, can also drive the stirring board and rotate, can strike off the inner wall of reaction tank bottom and raise through rotating by the hook when the stirring board rotates to pollutant piles up the condition of gathering in the bottom of the reaction tank in the sewage has been reduced.
Further, a stirring component is arranged above the water inlet pipe and is positioned in the reaction zone.
Through above-mentioned technical scheme, set up the stirring subassembly, the stirring subassembly can also turn over the filler carrier and the sewage in reaction zone and the district of intaking and mix to make sewage and the mixing of filler carrier more abundant, thereby make the microorganism on the filler carrier decompose more thoroughly to the pollutant in the sewage.
Furthermore, the stirring assembly comprises a main stirring part and an auxiliary stirring part, the main stirring part comprises a main stirring shaft coaxially fixed on the upper end surface of the water inlet pipe and a main stirring blade arranged on the main stirring shaft, the main stirring blade is spirally arranged along the axial direction of the main stirring shaft, and the main stirring blade is fixedly connected to the main stirring shaft through a connecting rod; when the water inlet pipe rotates, the main stirring blade drives the liquid at the corresponding position to move downwards.
Through the technical scheme, set up main stirring spare, when the inlet tube rotated, the inlet tube drove main (mixing) shaft and rotates, thereby make main stirring leaf stir, main stirring leaf is in the stirring, main stirring leaf can also make the sewage of main stirring spare department transport downwards, the function of cooperation water outlet rod and baffling ring, thereby make the flow direction of the sewage in the reaction box more stable, thereby make sewage better with the mixed effect of filler carrier, the decomposition of pollutant is more thorough.
Furthermore, the distance from one end of the main stirring blade far away from the main stirring shaft to the circumferential direction of the main stirring shaft is gradually reduced from top to bottom.
Through above-mentioned technical scheme, the setting that main stirring leaf diminishes gradually for the conveying capacity of upper end is better, can be fast will be close to the sewage and the filler carrier drive downflow at reaction zone top, then drives through the play water pole rivers of below, can continue to drive the upwelling to the sewage and the filler carrier that are close to play water pole department, forms stable flow direction in the reaction box.
Furthermore, assist the stirring spare and include along main (mixing) shaft circumference evenly distributed in main (mixing) epaxial a plurality of assist (mixing) shaft, correspond and set up in assisting epaxial supplementary stirring leaf of stirring.
Through the technical scheme, the whole stirring effect is better through the matching of the auxiliary stirring shaft and the auxiliary stirring blades.
Furthermore, one side of the auxiliary stirring shaft, which is far away from the main stirring shaft, is provided with a scraping strip, and one side of the scraping strip, which is far away from the main stirring shaft, is abutted against the inner side wall of the reaction box.
Through above-mentioned technical scheme, set up and scrape the strip, when assisting the (mixing) shaft and rotating along the inlet tube axis, scrape the strip and can also conflict the inside wall that the reaction box corresponds the reaction zone and intake the district to the pollutant that has reduced sewage is at the accumulational condition of reaction box inside wall, makes the processing of sewage more thorough.
Further, the scraping strip is a rubber strip, a T-shaped groove is formed in the auxiliary stirring shaft in the vertical direction, and a fillet embedded into the T-shaped groove is correspondingly arranged on the scraping strip.
Through above-mentioned technical scheme, set up T groove and fillet, through the cooperation of T groove and fillet for the scraping strip can be changed, thereby makes the use of scraping the strip more stable.
Compared with the prior art, the invention has the beneficial effects that:
(1) through the arrangement of the water outlet rod and the baffle ring, the water inlet area and the reaction area can be refluxed, so that the contact between the filler carrier and the sewage is more durable, the mixing effect of the filler carrier and the sewage is better, and the pollutants in the sewage are degraded more thoroughly;
(2) by arranging the main stirring part, sewage at the main stirring part is conveyed downwards, and the flow direction of the sewage in the reaction box is more stable by matching the functions of the water outlet rod and the baffle ring, so that the mixing effect of the sewage and the filler carrier is better, and the decomposition of pollutants is more thorough;
(3) through setting up the stirring board and scraping the strip, when the inlet tube rotated, the inlet tube can drive and assist stirring piece and stirring board rotation to make the stirring board strike off the cleanness with scraping the strip bottom and the inside wall to the reaction box respectively, reduced the condition that the pollutant piles up in reaction box bottom and inside wall in the sewage.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
FIG. 2 is a partial schematic structural view of the first embodiment, showing a stirring assembly;
fig. 3 is a schematic structural diagram of the second embodiment.
Reference numerals: 1. a reaction box; 2. a water inlet area; 3. a reaction zone; 4. a settling zone; 5. a water outlet area; 6. a filler carrier; 7. a three-phase separator; 8. a water outlet; 9. an exhaust pipe; 10. a water inlet pipe; 11. a drive assembly; 111. a drive motor; 112. a driving wheel; 113. a driven wheel; 114. a transmission belt; 12. a rotary joint; 13. a water outlet rod; 14. a baffle ring; 15. a stirring plate; 16. a stirring assembly; 161. a main stirring member; 1611. a main stirring shaft; 1612. a main stirring blade; 162. an auxiliary stirring member; 1621. an auxiliary stirring shaft; 1622. auxiliary stirring blades; 17. scraping the strips; 18. a T-shaped slot; 19. a fillet; 20. a housing; 21. a water inlet end; 22. and (5) a water outlet end.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
The first embodiment is as follows:
an anaerobic type flowing biofilm reactor is shown in figure 1 and comprises a cylindrical reaction box 1, wherein the axis of the reaction box 1 is vertically arranged. The reaction box 1 comprises a water inlet area 2, a reaction area 3, a settling area 4 and a water outlet area 5 which are communicated from bottom to top. Small granular filler carriers 6 are arranged in the reaction zone 3, and the filler carriers 6 can be quartz sand, anthracite, activated carbon, ceramsite or zeolite and the like. Be provided with three phase separator 7 in the play pool 5, three phase separator 7 inserts the setting of settling zone 4, and three phase separator 7 and 1 fixed connection of reaction box are provided with delivery port 8 on the three phase separator 7, and reaction box 1 is worn out to delivery port 8, and the top of three phase separator 7 is provided with blast pipe 9, and blast pipe 9 wears to locate reaction box 1 and is fixed in the top of reaction box 1, and this kind is current setting, does not do here and give unnecessary details.
The bottom of reaction box 1 is provided with inlet tube 10 coaxially, and inlet tube 10 wears to locate reaction box 1 bottom and rotates with reaction box 1 and be connected. A sealing structure, usually a packing seal, is usually arranged between the water inlet pipe 10 and the reaction box 1. The lower end of the reaction box 1 is further provided with a driving assembly 11, and the driving assembly 11 comprises a driving motor 111 fixed at the lower end of the reaction box 1, a driving wheel 112 fixed on an output shaft of the motor, a driven wheel 113 coaxially fixed on the outer side wall of the water inlet pipe 10, and a transmission belt 114 tensioned between the driving wheel 112 and the driven wheel 113. The lower end of the water inlet pipe 10 is connected with a rotary joint 12, the rotary joint 12 is a sealed rotary connector for 360-degree rotary transmission of a medium, and the rotary joint 12 is used for inputting liquid from the side of a pipeline into a rotary or reciprocating device. The other end of the rotary joint 12 is used for connecting to a water source, and when the water inlet pipe 10 is driven by the driving assembly 11 to rotate, the rotary joint 12 can ensure the communication between the water inlet pipe 10 and the water source.
As shown in fig. 1 and 2, one end of the water inlet pipe 10 in the reaction box 1 is evenly communicated with a plurality of water outlet rods 13 along the circumferential direction, the water outlet rods 13 are located in the water inlet area 2, the water outlet rods 13 are arranged three in the embodiment, each water outlet rod 13 is inclined and upwards arranged towards the direction away from the axis of the water inlet pipe 10, and one end of each water outlet rod 13 away from the water inlet pipe 10 is provided with an opening. The reaction zone 3 is provided with a baffle ring 14 near the precipitation zone 4, and the end surface of the baffle ring 14 far away from the water inlet zone 2 is arranged in a horizontal plane. The end face of the baffle ring 14 close to the water inlet area 2 is obliquely and downwards arranged towards the axis close to the reaction box 1, and the end face of the baffle ring 14 close to the water inlet area 2 is in circular arc transition with the reaction box 1.
The outer side wall of the water inlet pipe 10 is fixedly connected with a stirring plate 15, and the stirring plate 15 extends towards the direction far away from the water inlet pipe 10. The stirring plate 15 is obliquely arranged relative to the axis of the water inlet pipe 10, and the lower end surface of the stirring plate 15 is abutted against the inner wall of the lower end of the reaction box 1. The incline direction of stirring board 15 sets up according to the rotation direction of inlet tube 10, rotates when inlet tube 10 drives stirring board 15 and rotates, and stirring board 15 is raised the pollutant of 1 bottom of reaction box to the pollutant is piled up the condition of gathering in 1 bottom of reaction box in the sewage has been reduced.
As shown in fig. 1 and 2, a stirring assembly 16 is disposed above the water inlet pipe 10, and the stirring assembly 16 is located in the reaction zone 3. Stirring subassembly 16 includes main stirring piece 161 and supplementary stirring piece 162, and main stirring piece 161 includes main (mixing) shaft 1611, the main (mixing) blade 1612 that sets up on main (mixing) shaft 1611 that is fixed in water inlet pipe 10 upper end coaxially. The main stirring leaf 1612 is arranged spirally along the axial direction of the main stirring shaft 1611, the distance from the end of the main stirring leaf 1612 far away from the main stirring shaft 1611 to the circumferential direction of the main stirring shaft 1611 is gradually reduced from top to bottom, the distance from the end of the main stirring leaf 1612 close to the axis of the main stirring shaft 1611 to the main stirring shaft 1611 is also gradually reduced from top to bottom, and the main stirring leaf 1612 is fixedly connected to the main stirring shaft 1611 through a connecting rod. The direction of rotation of main stirring leaf 1612 also corresponds the direction of rotation setting of inlet tube 10, and when inlet tube 10 rotated, main stirring leaf 1612 drove the liquid of corresponding department and moves down.
The auxiliary stirring member 162 includes a plurality of auxiliary stirring shafts 1621 uniformly distributed on the main stirring shaft 1611 along the circumferential direction of the main stirring shaft 1611, and auxiliary stirring blades 1622 correspondingly arranged on the auxiliary stirring shafts 1621. In this embodiment, the number of the auxiliary stirring shafts 1621 is three, and the three auxiliary stirring shafts 1621 are arranged in a staggered manner corresponding to the water outlet rod 13. Every is assisted (mixing) shaft 1621 and all passes through on connecting axle fixed connection to main (mixing) shaft 1611, every is assisted (mixing) shaft 1621 and all is close to the inside wall setting of reaction box 1 circumference. One side of each auxiliary stirring shaft 1621, which is far away from the main stirring shaft 1611, is provided with a scraping strip 17, and one side of the scraping strip 17, which is far away from the main stirring shaft 1611, abuts against the inner side wall of the reaction box 1. The scraping strip 17 is a rubber strip, a T-shaped groove 18 is formed in the auxiliary stirring shaft 1621 in the vertical direction, and a fillet 19 embedded into the T-shaped groove 18 is correspondingly arranged on the scraping strip 17. The wiper strip 17 can be replaced by the engagement of the T-shaped groove 18 and the fillet 19. In addition, when assisting (mixing) shaft 1621 when rotating along inlet tube 10 axis, scrape the inside wall that strip 17 can also contradict 1 corresponding reaction zone 3 of reaction box and intake zone 2 to the pollutant that has reduced sewage is at the accumulational condition of 1 inside wall of reaction box.
The working principle of the embodiment is as follows:
adopt above-mentioned anaerobic type biofilm reactor that flows, sewage is leading-in through inlet tube 10, sewage rethread goes out the opening discharge of water pole 13, water is in the play water pole 13 exhaust, drive assembly 11 can drive inlet tube 10 and rotate, thereby make the play water pole 13 of inlet tube 10 upper end rotate along inlet tube 10 axis, make sewage can flow along the slope to the upper direction along the inner wall of reactor, when rivers flow to baffling ring 14 department, be close to the direction of 2 terminal surfaces in district of intaking through baffling ring 14, make sewage can flow to district 2 of intaking, thereby make district 2 and reaction zone 3 of intaking flow back, make sewage better with the mixed effect of filler carrier 6. In addition, the rotation of inlet tube 10 can drive the stirring of main stirring piece 161 and supplementary stirring piece 162, further makes filler carrier 6 and sewage mix more evenly through the stirring, and the rotation stirring of main stirring leaf 1612 cooperates with the flowing water direction of play water pole 13, baffling ring 14 in addition for the backward flow in the reaction box 1 flows to more stable, thereby makes pollutant processing more thoroughly in the sewage.
Example two:
an anaerobic flowing biofilm reactor, wherein the difference between the second embodiment and the first embodiment is that: the water-saving water dispenser further comprises a shell 20, wherein the shell 20 is in a mesh enclosure shape, the upper end of the shell 20 is connected with a water inlet end 21, and the lower end of the shell 20 is provided with a water outlet end 22. The reaction chamber 1 (not shown) is disposed in the housing 20, and the water inlet pipe 10 (not shown) is connected to the water inlet end 21, and the water outlet 8 (not shown) is connected to the water outlet end 22.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. The utility model provides an anaerobism type biofilm reactor that flows, includes reaction box (1) of cylinder, includes in reaction box (1) by lower supreme intercommunication intake zone (2), reaction zone (3), settling zone (4) and play pool (5), be provided with three-phase separator (7) in play pool (5), three-phase separator (7) insert settling zone (4) setting, are equipped with granular filler carrier (6) of xiao in reaction zone (3), and reaction box (1) bottom intercommunication has inlet tube (10), its characterized in that: the water inlet pipe (10) is coaxially and rotatably connected to the reaction box (1), and a driving assembly (11) for driving the water inlet pipe (10) to rotate is arranged on the reaction box (1); one end, located in the reaction box (1), of the water inlet pipe (10) is evenly communicated with a plurality of water outlet rods (13) along the circumferential direction, the water outlet rods (13) are arranged in the water inlet area (2), each water outlet rod (13) is arranged in an inclined and upward mode towards the direction far away from the axis of the water inlet pipe (10), and one end, far away from the water inlet pipe (10), of each water outlet rod (13) is arranged in an opening mode; a baffling ring (14) is arranged at the position, close to the settling zone (4), of the reaction zone (3), the end face, close to the water inlet zone (2), of the baffling ring (14) is obliquely and downwards arranged towards the axis close to the reaction box (1), and the end face, close to the water inlet zone (2), of the baffling ring (14) is in arc transition with the reaction box (1);
a stirring assembly (16) is arranged above the water inlet pipe (10), the stirring assembly (16) is positioned in the reaction zone (3), the stirring assembly (16) comprises a main stirring part (161) and an auxiliary stirring part (162), the main stirring part (161) comprises a main stirring shaft (1611) coaxially fixed on the upper end surface of the water inlet pipe (10) and a main stirring blade (1612) arranged on the main stirring shaft (1611), the main stirring blade (1612) is spirally arranged along the axial direction of the main stirring shaft (1611), and the main stirring blade (1612) is fixedly connected to the main stirring shaft (1611) through a connecting rod; when the water inlet pipe (10) rotates, the main stirring blade (1612) drives the liquid at the corresponding position to move downwards.
2. The anaerobic flow biofilm reactor of claim 1, wherein: the end face of the baffle ring (14) far away from the water inlet area (2) is arranged in a horizontal plane.
3. The anaerobic flow biofilm reactor of claim 2, wherein: the lateral wall fixedly connected with of inlet tube (10) stirs board (15), it sets up to be the slope for inlet tube (10) axis to stir board (15), just the lower terminal surface of stirring board (15) is contradicted in the lower extreme inner wall setting of reaction box (1), when inlet tube (10) rotate and drive stirring board (15) and rotate, stirs board (15) and raises the pollutant of reaction box (1) bottom.
4. The anaerobic flow biofilm reactor of claim 1, wherein: the distance from one end of the main stirring blade (1612) far away from the main stirring shaft (1611) to the circumferential direction of the main stirring shaft (1611) is gradually reduced from top to bottom.
5. The anaerobic flow biofilm reactor of claim 1, wherein: the auxiliary stirring piece (162) comprises a plurality of auxiliary stirring shafts (1621) which are uniformly distributed on the main stirring shaft (1611) along the circumferential direction of the main stirring shaft (1611), and auxiliary stirring blades (1622) which are correspondingly arranged on the auxiliary stirring shafts (1621).
6. The anaerobic flow biofilm reactor of claim 5, wherein: one side that main (mixing) shaft (1611) was kept away from in supplementary (mixing) shaft (1621) is provided with scrapes strip (17), it contradicts in reaction box (1) inside wall setting to scrape one side that main (mixing) shaft (1611) was kept away from in strip (17).
7. The anaerobic flow biofilm reactor of claim 6, wherein: the scraping strip (17) is a rubber strip, a T-shaped groove (18) is formed in the auxiliary stirring shaft (1621) in the vertical direction, and a fillet (19) embedded into the T-shaped groove (18) is correspondingly arranged on the scraping strip (17).
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