CN114149135A

CN114149135A - Sewage regeneration treatment system

Info

Publication number: CN114149135A
Application number: CN202111288643.7A
Authority: CN
Inventors: 许志溪; 林德生; 刘涛; 王小锋; 林少伟; 潘伟敏
Original assignee: Fujian Huayuan Construction Engineering Group Co ltd
Current assignee: Fujian Huayuan Construction Engineering Group Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2022-03-08
Anticipated expiration: 2041-11-02
Also published as: CN114149135B

Abstract

The application discloses a sewage regeneration treatment system, which comprises a sedimentation tank, a biochemical tank, a secondary sedimentation tank and a filtering and disinfecting tank, wherein the biochemical tank comprises an anoxic tank, an anaerobic tank and an aerobic tank; be equipped with a plurality of deflectors that set up along vertical direction dislocation in the aerobic tank, the deflector slope sets up, two deflectors adjacent from top to bottom are towards opposite direction slope, and the lower side that is located the deflector of top covers the edge of the higher side of the adjacent deflector in below, and keeps the interval, and the outside in aerobic tank is equipped with the aeration machine, and the aeration machine is connected with the aeration pipe that stretches into the aerobic tank bottom, and the lower extreme of aeration pipe is buckled and is extended to between the diapire of the deflector of minimum and aerobic tank. This application has the effect that promotes dissolved oxygen efficiency among the aeration process.

Description

Sewage regeneration treatment system

Technical Field

The application relates to the technical field of sewage treatment, in particular to a sewage regeneration treatment system.

Background

With the development of social economy, social production and life bring a large amount of sewage, the untreated sewage contains a large amount of organic matters, when the load of organic pollutants is too high, dissolved oxygen in a containing water body for receiving the sewage is easily consumed in the degradation process of the organic matters, the containing water body gradually becomes eutrophic, the water body becomes black and smelly, and the surrounding environment is seriously influenced.

In the prior art, when sewage is treated, microorganisms are utilized to decompose organic matters in the sewage, oxygen which needs to be consumed when the microorganisms decompose the organic matters is supplied through an aerator, but bubbles generated by aeration of the aerator on the sewage quickly float out of the water surface, and the oxygen dissolving efficiency is low.

Disclosure of Invention

In order to solve the problem that the efficiency is lower for the bubble dissolved oxygen that aeration produced among the sewage treatment, this application provides a sewage regeneration treatment system.

The application provides a sewage regeneration treatment system adopts following technical scheme:

a sewage regeneration treatment system comprises a sedimentation tank, a biochemical tank, a secondary sedimentation tank and a filtering and disinfecting tank, wherein the biochemical tank comprises an anoxic tank, an anaerobic tank and an aerobic tank; the aerobic tank is internally provided with a plurality of guide plates which are arranged along the vertical direction in a staggered manner, the guide plates are obliquely arranged, the upper guide plates and the lower guide plates are adjacent, the two guide plates are obliquely arranged towards opposite directions, the lower sides of the guide plates above the guide plates cover the edges of the higher sides of the guide plates below the adjacent guide plates, the distance is kept, the outer side of the aerobic tank is provided with an aerator, the aerator is connected with an aerator pipe extending into the bottom of the aerobic tank, and the lower end of the aerator pipe is bent to extend to the lowest position between the guide plates and the bottom wall of the aerobic tank.

By adopting the technical scheme, in the aeration process of the aerator, the aerator blows bubbles to the sewage in the aerobic tank through the aeration pipe, the bubbles are generated between the bottom of the aerobic tank and the lowest guide plate, because the guide plate is obliquely arranged, when the bubbles rise upwards, the bubbles gradually move upwards along the lower surface of the guide plate in an inclined way, when the air bubble is separated from the higher side of the guide plate, the air bubble is shielded by the adjacent guide plate above, so that the air bubble continues to move upwards along the lower surface of the adjacent guide plate above in an inclined way, because the upper and lower guide plates which are adjacent to each other are inclined towards opposite directions, the bubbles move upwards in the water along the zigzag path until the bubbles break on the water surface, and the bubbles move along the zigzag path, so that the retention time of the bubbles in the water is greatly increased, thereby increasing the proportion of oxygen dissolved into the sewage in the bubbles and further improving the oxygen dissolving efficiency in the aeration process.

Optionally, the lower end of the aeration pipe is connected with a microporous aeration head.

Through adopting above-mentioned technical scheme, the micropore aeration head makes the bubble that the aeration of aeration machine produced littleer, and quantity is more, is favorable to promoting the area of contact of the air that the aeration machine blew off and sewage to promote dissolved oxygen efficiency.

Optionally, a heating box is connected between the aerator and the aeration pipe, and a heating rod is arranged in the heating box.

By adopting the technical scheme, the air blown out by the aerator can be heated by arranging the heating box, the air can be subjected to heat exchange with the sewage to heat the sewage after being heated, and the activity of microorganisms can be improved after the sewage is heated under the cold weather condition, so that the efficiency of the microorganisms for decomposing organic matters in the sewage is improved; on the other hand, after the air is heated, the dissolving efficiency of the oxygen in the sewage is further improved.

Optionally, two sides of the guide plate parallel to the inclination direction of the guide plate are respectively provided with a side plate, and the side plates are located on the lower surface of the guide plate.

Through adopting above-mentioned technical scheme, two curb plates that are located the deflector lower surface can hinder the bubble from following the direction of perpendicular to deflector incline direction and deviating from the lower surface of deflector, make the bubble move upwards along the incline direction of deflector as far as possible to ensure the bubble as far as possible and remove along broken line route in sewage.

Optionally, the guide plate is gradually inclined upwards from the middle to the direction close to the two side plates.

Through adopting above-mentioned technical scheme, the deflector upwards slopes gradually to the direction that is close to two curb plates from the middle, when making the bubble remove along the lower surface of deflector, is inclined to the both sides diffusion of deflector to be favorable to making the bubble disperse in sewage, and then be favorable to promoting the degree of consistency of sewage dissolved oxygen.

Optionally, the lowest point of the side plate of the upper guide plate is higher than the highest point of the lower adjacent guide plate.

By adopting the technical scheme, the lowest point of the side plate of the guide plate positioned above is higher than the highest point of the adjacent guide plate below, and when the bubbles are separated from the lower surface of the guide plate from the higher side of the guide plate, the bubbles are subjected to the blocking action of the side plate of the adjacent guide plate above, so that the bubbles are transited to the adjacent guide plate above from the guide plate below as smoothly as possible, and the bubbles are ensured to float upwards along the zigzag path.

Optionally, the sedimentation tank with biochemical pond fuses, the sedimentation tank with be equipped with the baffle between the biochemical pond, baffle upper portion is equipped with the overflow breach, the baffle is equipped with along vertical plane cover the filter piece of overflow breach.

Through adopting above-mentioned technical scheme, the water after the sedimentation in the sedimentation tank flows into biochemical pond through the overflow breach, and the baffle sets up and filters the showy debris that can further filter to gather in the sedimentation tank.

Optionally, the two side plates located on the same guide plate gradually get away from each other from top to bottom.

Through adopting above-mentioned technical scheme, under the prerequisite that each deflector size and specification is the same, two curb plates of same deflector separate from last down each other gradually, make interval between two curb plates down crescent from last to make two curb plates dodge the adjacent deflector in below and the both sides board on it, in order to avoid interfering, on this basis, each deflector can make the same size and specification, the processing of being convenient for.

Optionally, filter and include the frame, the upper and lower side of frame rotates respectively and is connected with the pivot, the pivot level sets up, two jointly around being equipped with many silk threads between the pivot, the silk thread is followed the axial equidistance evenly distributed of pivot, two the pivot all is equipped with and is used for the location the annular of silk thread is located the upside the one end of pivot is equipped with the turning handle.

By adopting the technical scheme, the plurality of silk threads are uniformly and equidistantly distributed, so that floating impurities in the sedimentation tank can be prevented from entering the biochemical tank, and the filtering effect is achieved; the ring groove limits the axial movement of the silk threads along the rotating shaft, so that the adjacent silk threads are kept at uniform equal intervals; after the filtering piece is used for a long time, floating sundries are attached to the silk threads to influence the water passing efficiency, the rotating shaft positioned above the rotating handle is driven to rotate through rotating, the rotating shaft drives the silk threads to rotate circularly, and when the silk threads rotate circularly, the annular grooves can scrape the attached sundries on the silk threads, so that the silk threads are kept clean and tidy.

Optionally, the outer frame is provided with an adjusting assembly, the adjusting assembly comprises an adjusting plate and an adjusting screw rod, the adjusting plate is of a long rectangular structure, the width of the adjusting plate is larger than the diameter of the bottom surface of the annular groove, the length direction of the adjusting plate is parallel to the rotating shaft, the adjusting plate sequentially penetrates through the surrounding areas of the silk threads along the length direction, rotating shafts are fixedly arranged at two ends of the adjusting plate, and the two rotating shafts are respectively and rotatably connected with the outer frame; adjusting screw with the upper portion threaded connection of frame, adjusting screw with the axis of rotation antarafacial is perpendicular, adjusting screw's lower extreme passes the regulating plate, the regulating plate is equipped with and is used for dodging adjusting screw's the breach of dodging, adjusting screw's lower extreme threaded connection has two stoppers, two the stopper is located respectively the both sides of regulating plate.

By adopting the technical scheme, the width of the adjusting plate is larger than the diameter of the bottom surface of the ring groove, so that the side edges of the two long edges of the adjusting plate can be abutted against the silk threads; when the relative frame spiral of adjusting bolt rotated, adjusting bolt accessible two stoppers drove the regulating plate and revolve the axis of rotation, made the width size of regulating plate at the projection of horizontal plane change to make the regulating plate have the effect of strutting the tensioning to two vertical limits of silk thread, when the silk thread appears warping not hard up after long-term the use, the tensioning was adjusted in the rotatory adjusting bolt of accessible drive regulating plate.

In summary, the present application includes at least one of the following beneficial technical effects:

under the guiding action of each guide plate, bubbles generated by aeration move upwards in water along a zigzag path until the bubbles break on the water surface, and the bubbles move along the zigzag path, so that the retention time of the bubbles in the water is greatly increased, the proportion of oxygen dissolved into sewage in the bubbles is increased, and the oxygen dissolving efficiency in the aeration process is further improved;

through setting up two curb plates that are located the deflector lower surface, make two curb plates hinder the bubble from the lower surface that the deflector is deviate from to the direction of perpendicular to deflector incline direction, make the bubble move up along the incline direction of deflector as far as possible to ensure the bubble as far as possible and remove along broken line route in sewage.

Drawings

Fig. 1 is a schematic view of the overall structure of the present embodiment.

Fig. 2 is a sectional view taken in the direction of a-a in fig. 1.

Fig. 3 is a schematic diagram for showing the positional relationship between the guide plates in the present embodiment.

Fig. 4 is a schematic structural view of the filter member of the present embodiment.

Fig. 5 is a partial enlarged view of fig. 4 at B.

Description of reference numerals: 1. a sedimentation tank; 11. a partition plate; 111. an overflow notch; 2. a biochemical pool; 21. an anoxic tank; 22. an anaerobic tank; 23. an aerobic tank; 3. a secondary sedimentation tank; 4. a filtering and disinfecting tank; 5. a guide plate; 51. connecting columns; 52. a side plate; 6. an aerator; 61. an aeration pipe; 62. a microporous aeration head; 7. a heating box; 71. a heating rod; 72. a controller; 73. a temperature sensor; 8. a filter member; 81. an outer frame; 82. a rotating shaft; 821. a ring groove; 822. a handle is rotated; 823. an adjustment assembly; 8231. adjusting the screw rod; 8232. an adjusting plate; 8233. a rotating shaft; 8235. locking the nut; 8236. a limiting block; 8237. avoiding the notch; 83. a silk thread; 9. and (4) a water pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a sewage regeneration treatment system. Referring to fig. 1, the sewage regeneration treatment system comprises a sedimentation tank 1, a biochemical tank 2, a secondary sedimentation tank 31 and a filtering and disinfecting tank 4; the sedimentation tank 1 and the biological tank are connected into a whole, a partition plate 11 is arranged between the sedimentation tank 1 and the biological tank, and the upper part of the partition plate 11 is provided with an overflow notch 111; the biochemical tank 2 comprises an anoxic tank 21, an anaerobic tank 22 and an aerobic tank 23 which are sequentially arranged in a separated manner along the direction far away from the sedimentation tank 1.

The sewage after coarse filtration is discharged into the sedimentation tank 1 for sedimentation, the sewage after sedimentation overflows to the biochemical tank 2 through the overflow notch 111, the sewage is discharged into the secondary sedimentation tank 31 for sedimentation and separation after biochemical treatment in the anoxic tank 21, the anaerobic tank 22 and the aerobic tank 23 in sequence, and the sewage is discharged into the filtering and disinfecting tank 4 for filtering and disinfection after sedimentation and separation in the secondary sedimentation tank 31 for recycling. The transfer and discharge of the sewage in the above process are performed by the water pump 9.

Referring to fig. 2 and 3, three guide plates 5 staggered in the vertical direction are arranged in the aerobic tank 23, four connecting columns 51 are fixedly connected to each guide plate 5, the four connecting columns 51 are respectively connected with four corners of each guide plate 5, the guide plates 5 are obliquely arranged, two adjacent guide plates 5 from top to bottom are obliquely inclined towards opposite directions, the upper adjacent guide plates 5 from top to bottom are staggered in the horizontal direction, the lower side of the guide plate 5 located above covers the edge of the higher side of the adjacent guide plate 5 below, and the distance is kept.

Referring to fig. 1, an aerator 6 is arranged outside the biochemical tank 2, the aerator 6 is connected with an aerator pipe 61 extending into the bottom of the aerobic tank 23, the lower end of the aerator pipe 61 is bent and extends to a position between the lower side of the lowest guide plate 5 and the bottom wall of the aerobic tank 23, and the air outlet end of the aerator pipe 61 is connected with a microporous aerator 62.

Aeration machine 6 during operation blows out a large amount of bubbles through micropore aeration head 62, dissolves more oxygen in the messenger sewage and supplies the demand that the microorganism grows and breeds, and the bubble moves up along the lower surface slope of deflector 5 of below, when the bubble leaves the higher side of deflector 5 of below, continues to receive the guide effect of the adjacent deflector 5 in top, under the effect of each deflector 5, the bubble moves the come-up along zigzag form route in sewage.

Referring to fig. 3, the guide plate 5 gradually inclines upwards from the middle to the two sides parallel to the inclination direction of the guide plate, so that bubbles are diffused from the middle to the two sides when moving along the lower surface of the guide plate 5, which is beneficial to the distribution of the bubbles in sewage and the uniformity of dissolved oxygen in sewage.

Referring to fig. 2 and 3, side plates 52 are respectively disposed on both sides of the guide plate 5 parallel to the inclination direction of the guide plate, the side plates 52 are located on the lower surface of the guide plate 5, the side plates 52 prevent air bubbles from directly escaping from both sides of the guide plate 5, the lowest point of the side plate 52 of the upper guide plate 5 is higher than the highest point of the lower adjacent guide plate 5, and when an air bubble leaves the higher side of the guide plate 5, the air bubble is not easily escaping from the upper adjacent guide plate 5 by the interference of the side plate 52 of the upper adjacent guide plate 5.

Referring to fig. 3, two side plates 52 located on the same guide plate 5 are gradually inclined away from each other from top to bottom, so that the side plates 52 can better avoid the adjacent guide plate 5 below on the premise of keeping the dimension and specification of each guide plate 5 the same.

Referring to fig. 1, a heating box 7 is connected between an aerator 6 and an aerator pipe 61, a heating rod 71 is arranged in the heating box 7, a controller 72 is arranged outside the heating box 7, and the heating rod 71 is electrically connected with the controller 72; a temperature sensor 73 for measuring the sewage temperature is arranged in the aerobic tank 23, the temperature sensor 73 is electrically connected with the controller 72, and the controller 72 collects temperature data measured by the temperature sensor 73. When the sewage temperature is lower than a set value, the controller 72 controls the heating rod 71 to heat; when the sewage is higher than another set value, the controller 72 controls the heating rod 71 to stop heating.

In cold weather, the air blown out by the aerator 6 is heated by the heating rod 71, and the heated air forms bubbles to heat the sewage, so that the activity of microorganisms in the aerobic tank 23 is improved, and the degradation efficiency of organic matters is improved; in addition, the external air is heated, so that the efficiency of dissolving oxygen in the air into the sewage can be improved.

Referring to fig. 1 and 4, the overflow notch 111 is close to one side wall of the settling tank 1, and the partition 11 is provided with a filter member 8 covering the overflow notch 111 along a vertical plane. Filter 8 and include square frame 81, frame 81 is fixed in one side that baffle 11 is close to sedimentation tank 1 through the expansion bolts locking, the upper and lower side of frame 81 rotates respectively and is connected with pivot 82, pivot 82 level sets up, and be on a parallel with two upper and lower frame strips of frame 81, jointly around being equipped with many silk threads 83 between two pivot 82, silk thread 83 specifically can use non-joint annular wire rope, silk thread 83 is along the axial equidistance evenly distributed of pivot 82, two pivot 82 all are equipped with the annular 821 that is used for fixing a position silk thread 83, the one end that is located the pivot 82 of top is equipped with turning handle 822, turning handle 822 is located the outside of square frame. The rotating shaft 82 is driven to rotate by rotating the handle, so that the rotating shaft 82 drives the silk thread 83 to rotate, the silk thread 83 is scraped by the annular groove 821, impurities adhered to the silk thread 83 are reduced, and the silk thread 83 is kept neat.

Referring to fig. 4 and 5, the outer frame 81 is provided with an adjusting assembly 823, the adjusting assembly 823 includes an adjusting plate 8232 and an adjusting screw rod 8231, the adjusting plate 8232 is in a long rectangular structure, the width of the adjusting plate 8232 is larger than the diameter of the bottom surface of the ring groove 821, the length direction of the adjusting plate 8232 is parallel to the rotating shaft 82, the adjusting plate 8232 sequentially penetrates through the surrounding area of each silk thread 83 along the length direction, two ends of the adjusting plate 8232 are fixedly provided with rotating shafts 8233, and the two rotating shafts 8233 are respectively and rotatably connected with two vertical frame strips of the outer frame 81; adjusting screw 8231 and frame 81's last framework bar threaded connection, adjusting screw 8231's upper end threaded connection has lock nut 8235, adjusting screw 8231 is perpendicular with the different face of axis of rotation 8233, adjusting screw 8231's lower extreme passes regulating plate 8232, regulating plate 8232 is equipped with the breach 8237 of dodging adjusting screw 8231, adjusting screw 8231's lower extreme threaded connection has two stopper 8236, two stopper 8236 are located regulating plate 8232's both sides respectively, two stopper 8236 are the toper, two stopper 8236's tip sets up relatively, rotatory regulating plate 8232 can be dodged to two stopper 8236's conical surface.

The implementation principle of the sewage regeneration treatment system in the embodiment of the application is as follows: aeration machine 6 carries out the in-process of aeration, aeration machine 6 blows the bubble to the sewage in the good oxygen pond 23 through aeration pipe 61, under the guide effect of each deflector 5, the bubble is broken open at the surface of water along zigzag path rebound in aqueous, the bubble moves along zigzag path, greatly increased the time that the bubble stayed in aqueous, thereby the proportion of oxygen in the increase bubble dissolves into in the sewage, and then promote the dissolved oxygen efficiency of aeration process, be favorable to the microorganism to decompose the organic matter. The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a sewage regeneration treatment system which characterized in that: the device comprises a sedimentation tank (1), a biochemical tank (2), secondary sedimentation tanks (3) and (1) and a filtering and disinfecting tank (4), wherein the biochemical tank (2) comprises an anoxic tank (21), an anaerobic tank (22) and an aerobic tank (23); the aerobic tank is characterized in that a plurality of guide plates (5) which are arranged along the vertical direction in a staggered manner are arranged in the aerobic tank (23), the guide plates (5) are obliquely arranged, two guide plates (5) which are adjacent from top to bottom are inclined towards the opposite direction, the lower side of each guide plate (5) which is positioned above covers the edge of the higher side of the guide plate (5) which is adjacent from bottom to bottom, the distance is kept, an aerator (6) is arranged on the outer side of the aerobic tank (23), the aerator (6) is connected with an aeration pipe (61) which extends into the bottom of the aerobic tank (23), and the lower end of the aeration pipe (61) is bent to extend to the lowest position between the guide plates (5) and the bottom wall of the aerobic tank (23).

2. The sewage water reclamation treatment system of claim 1, wherein: the lower end of the aeration pipe (61) is connected with a microporous aeration head (62).

3. The sewage water reclamation system of claim 3, wherein: a heating box (7) is connected between the aerator (6) and the aerator pipe (61), and a heating rod (71) is arranged in the heating box (7).

4. The sewage water reclamation treatment system of claim 1, wherein: and side plates (52) are respectively arranged on two sides of the guide plate (5) parallel to the self inclination direction, and the side plates (52) are positioned on the lower surface of the guide plate (5).

5. The sewage water reclamation treatment system of claim 4, wherein: the guide plate (5) is gradually inclined upwards from the middle to the direction close to the two side plates (52).

6. The sewage water reclamation system of claim 5, wherein: the lowest point of the side plate (52) of the guide plate (5) positioned above is higher than the highest point of the guide plate (5) adjacent below.

7. The sewage water reclamation treatment system of claim 6, wherein: the two side plates (52) positioned on the same guide plate (5) are gradually far away from each other from top to bottom.

8. The sewage water reclamation treatment system of claim 1, wherein: sedimentation tank (1) with biochemical pond (2) are even integrative, sedimentation tank (1) with be equipped with baffle (11) between biochemical pond (2), baffle (11) upper portion is equipped with overflow breach (111), baffle (11) are equipped with along vertical plane cover filter piece (8) of overflow breach (111).

9. The sewage water reclamation system of claim 8, wherein: filter piece (8) including frame (81), the upper and lower side of frame (81) is rotated respectively and is connected with pivot (82), pivot (82) level sets up, two jointly around being equipped with many silk threads (83) between pivot (82), silk thread (83) are followed the axial equidistance evenly distributed of pivot (82), two pivot (82) all are equipped with and are used for the location annular (821) of silk thread (83), are located the upside the one end of pivot (82) is equipped with turning handle (822).

10. The sewage water reclamation system of claim 9, wherein: the outer frame (81) is provided with an adjusting assembly (823), the adjusting assembly (823) comprises an adjusting plate (8232) and an adjusting screw rod (8231), the adjusting plate (8232) is of a long rectangular structure, the width of the adjusting plate (8232) is larger than the diameter of the bottom surface of the annular groove (821), the length direction of the adjusting plate (8232) is parallel to the rotating shaft (82), the adjusting plate (8232) sequentially penetrates through the surrounding areas of the silk threads (83) along the length direction of the adjusting plate, rotating shafts (8233) are fixedly arranged at two ends of the adjusting plate (8232), and the two rotating shafts (8233) are respectively connected with the outer frame (81) in a rotating mode; adjusting screw (8231) with the upper portion threaded connection of frame (81), adjusting screw (8231) with axis of rotation (8233) different face is perpendicular, adjusting screw (8231)'s lower extreme passes adjusting plate (8232), adjusting plate (8232) are equipped with and are used for dodging adjusting screw (8231) dodge breach (8237), adjusting screw (8231)'s lower extreme threaded connection has two stopper (8236), two stopper (8236) are located respectively the both sides of adjusting plate (8232).