CN214383722U - High-efficiency hydrolysis bioreactor - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment equipment, in particular to a high-efficiency hydrolysis bioreactor, which comprises a cylindrical reaction cylinder, wherein an adjusting layer, a spacing layer and a biological filtering layer are sequentially arranged in the reaction cylinder from bottom to top for filtering sewage, and an aeration device is arranged at the upper part of the spacing layer; the adjusting layer is composed of anaerobic granular sludge, the biological filtering layer comprises a plurality of carrier devices for hanging aerobic microorganisms, the carrier devices respectively comprise an upper bearing plate and a lower bearing plate which are arranged in parallel, the upper bearing plate and the lower bearing plate are both in a net shape, and a first suspension ball is filled between the upper bearing plate and the lower bearing plate; one side of the reaction cylinder is communicated with a water inlet pipe, one end of the water inlet pipe penetrating into the reaction cylinder is connected with a water distribution device, and the water distribution device is positioned above the adjusting layer; the upper part of the reaction cylinder is connected with a water outlet pipe. The utility model discloses can accomplish the purification treatment to sewage fast with the help of aerobic microorganisms, the holistic area of reactor is little simultaneously, and easily later maintenance uses.

Description

High-efficiency hydrolysis bioreactor

Technical Field

The utility model relates to a sewage treatment device's technical field especially relates to a high-efficient hydrolysis bioreactor.

Background

Domestic sewage is wastewater discharged by residents in daily life, and compared with industrial wastewater, the domestic sewage is relatively stable in components, and main pollutants in the domestic sewage are various organic matters and pathogenic microorganisms. In order to prevent domestic sewage from polluting underground water, the sewage water body is generally required to be purified before the domestic sewage is discharged, and the common purification methods at the present stage are divided into two methods, namely an aeration biological filter method and an activated sludge method.

In the case of the biological aerated filter method, aerobic microorganisms capable of purifying water are generally cultured quickly by arranging fillers in the water and adopting an artificial oxygen supply mode; the device has the advantages of low energy consumption, large buffer capacity, capability of bearing water flow velocity fluctuation in a large range and less sludge generated in the whole process; however, the biological aerated filter method has large floor area, so the construction cost is high, and the requirement on the solid suspension degree concentration of the sewage is severe, so the sewage needs to be subjected to certain preposed sedimentation treatment, and because the nutrients on the surface layer of the biological filter are enriched, flies and insects are easy to breed; also, when microorganisms in the water body age and die, the remaining aged biofilm may gradually build up in the water body, which may reduce the flow rate of the sewage water body.

In the activated sludge method, sewage and various microorganism groups are continuously mixed and cultured in an artificial oxygen supply mode to form activated sludge, and organic pollutants in the sewage are decomposed by utilizing the biological coagulation, adsorption and oxidation effects of the activated sludge; the method has the advantages that the occupied area is slightly lower than that of a biological filter method, and the treatment efficiency of the method on the water body is slightly higher than that of the biological filter method; however, the activated sludge process is high in overall maintenance cost and is likely to cause sludge bulking.

For the sewage treatment equipment at the present stage, how to balance the construction cost and the sewage treatment effect and find a treatment mode with higher cost performance becomes a problem to be solved urgently.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a high-efficiency hydrolysis bioreactor which not only can reduce the floor area of sewage treatment equipment, but also can reduce the construction cost of the sewage treatment equipment; meanwhile, the device also has stronger sewage treatment capability.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a high-efficiency hydrolysis bioreactor comprises a cylindrical reaction cylinder, wherein a biological filter layer for oxidizing and decomposing sewage and an aeration device for supplying oxygen to the biological filter layer are arranged in the reaction cylinder, the biological filter layer comprises a plurality of carrier devices for carrying aerobic microorganisms, and the carrier devices are arranged in parallel along the vertical direction; each carrier device comprises an upper bearing plate and a lower bearing plate which are arranged in parallel, the upper bearing plate and the lower bearing plate are both in a net shape, and a plurality of first suspension balls for attaching aerobic microorganisms are filled between the upper bearing plate and the lower bearing plate; the method is characterized in that: the reaction cylinder is internally provided with an adjusting layer for removing colloidal impurities in sewage, the adjusting layer consists of anaerobic granular sludge, the adjusting layer is positioned below the biological filtering layer, a spacing layer is also arranged between the adjusting layer and the biological filtering layer, and the aeration device is connected to the upper part of the spacing layer; the lower part of the reaction cylinder is communicated with a water inlet pipe for supplying domestic sewage to the reaction cylinder, one end of the water inlet pipe penetrating into the reaction cylinder is connected with a water distribution device for uniformly distributing the domestic sewage in the reaction cylinder, and the water distribution device is arranged between the adjusting layer and the spacing layer; the upper part of the reaction cylinder is connected with a water outlet pipe.

By adopting the technical scheme, the sewage flows into the bottom of the reaction cylinder from the water inlet pipe, and is uniformly distributed at the bottom of the reaction cylinder after being treated by the water distribution device; in the process that sewage flows out of the reaction cylinder from bottom to top, the anaerobic granular sludge of the adjusting layer firstly carries out hydrolytic acidification treatment on the sewage, and macromolecular organic matters in the sewage body are decomposed into micromolecular organic matters which are easily absorbed by bacteria;

then the sewage water body enters the water section where the spacing layer is located, the aeration device can blow oxygen into the water body at the moment, the water body carrying a large amount of oxygen and small molecular organic matters immediately enters the water section where the biological filter layer is located, impurities such as the small molecular organic matters in the sewage water body are treated through the oxidative decomposition of the aerobic microorganisms attached to the surface of the first suspension ball, and turbid sewage becomes clearer;

because the anaerobic granular sludge has better adsorption capacity, most of solid suspended matters and floating matters carried in the domestic sewage can be adhered to the surface of the anaerobic granular sludge when the domestic sewage entering the reaction cylinder through the water inlet pipe flows through the adjusting layer, so that the concentration of the solid suspended matters in the domestic sewage can be controlled, and a settling device does not need to be arranged outside the reaction cylinder to treat the solid suspended matters in the sewage;

meanwhile, as partial hydrolytic acidification bacteria exist in the anaerobic granular sludge, when the sewage water flows through the regulating layer, macromolecular organic matters existing in the sewage are decomposed into micromolecular organic matters which can be utilized by bacteria, so that the oxidative decomposition of aerobic microorganisms in the biological filter layer on the sewage water can be further promoted;

compared with the traditional mode of arranging a sedimentation device in front of the biological filter, the mode of directly arranging the adjusting layer consisting of anaerobic granular sludge at the bottom of the reaction cylinder has higher space utilization efficiency and can improve the oxidative decomposition efficiency of aerobic microorganisms in the biological filter layer on sewage;

the conventional biological filter generally adopts a top-down mode to convey sewage, and because organic matters in a sewage water body are enriched on the surface layer of the biological filter, flies and insects are often bred on the surface of the biological filter; and the utility model discloses adopt the mode from bottom to top to carry sewage, when sewage flowed from reaction cylinder upper portion, the organic matter that contains in it had adjusted layer and biological filter layer consumption more than half, so can correspondingly avoid the problem that the fly bred.

The present invention may be further configured in a preferred embodiment as: the water distribution device comprises an annular water distribution pipe, and the water distribution pipe is arranged above the adjusting layer through a limiting mechanism; the inner side of the water distribution pipe is communicated with a plurality of connecting pipes, one end of each connecting pipe, which is far away from the water distribution pipe, is communicated with the same water inlet block, the inner part of the water inlet block is hollow, and the bottom of the water inlet block is communicated with one end of the reaction cylinder, which is penetrated into the water inlet pipe through a sealing bearing; a plurality of water distribution spray pipes for spraying domestic sewage are arranged on the peripheral wall of the outer side of the water distribution pipe, and the extension direction of nozzles of the water distribution spray pipes is tangential to the circumferential direction of the water distribution pipe; the inner side peripheral wall of the water distribution pipe is uniformly provided with a plurality of inner ring mud raising plates for raising anaerobic granular sludge, and the outer side peripheral wall of the water distribution pipe is uniformly provided with a plurality of outer ring mud raising plates for raising anaerobic granular sludge.

By adopting the technical scheme, the extending direction of the nozzle of the water distribution spray pipe is set to be tangential to the circumferential direction of the water distribution pipe, and the water distribution pipe rotates along the central axis of the water distribution pipe by virtue of the reaction force generated when water is sprayed out, so that the aim of uniformly distributing water in the reaction cylinder is fulfilled;

because the peripheral wall of the water distribution pipe is also provided with the outer ring mud raising plate and the inner ring mud raising plate, when the water distribution pipe rotates, the outer ring mud raising plate and the inner ring mud raising plate can also move circularly along with the water distribution pipe, and the anaerobic granular sludge originally sinking to the bottom of the reaction cylinder can rise for a certain distance and finally maintain a suspended state due to the stirring of the outer ring mud raising plate and the inner ring mud raising plate, and at the moment, the anaerobic granular sludge uniformly floats in the water body at the bottom of the reaction cylinder;

based on the above, the contact area between the anaerobic granular sludge and the sewage body is further expanded, namely, the solid suspended matters carried in the sewage body are fully adsorbed by the anaerobic granular sludge; meanwhile, the anaerobic granular sludge avoids the condition that the sludge is gradually hardened and finally inactivated at the bottom of the reaction cylinder.

The present invention may be further configured in a preferred embodiment as: the water distribution spray pipe is characterized in that a plurality of elastic limiting pieces used for sealing the water distribution spray pipe are arranged at the pipe orifice of one end, far away from the water distribution pipe, of the water distribution spray pipe, the elastic limiting pieces are mutually abutted and enclosed into a cone, and the cone enclosed by the elastic limiting pieces is outwards protruded along the water outlet direction of the water distribution spray pipe.

By adopting the technical scheme, the water distribution spray pipe is arranged at the bottom of the reaction cylinder, and the anaerobic granular sludge is uniformly distributed in the water body where the water distribution spray pipe is positioned, so that the condition that the water distribution spray pipe is blocked by the anaerobic granular sludge is easy to occur; the water distribution spray pipe is protected by arranging the elastic limiting sheet which is enclosed into a cone shape, when the water distribution spray pipe stops spraying sewage outwards, the water outlet of the water distribution spray pipe is sealed by means of the resetting of the elastic limiting sheet, and the anaerobic granular sludge is prevented from entering the water distribution spray pipe;

meanwhile, because the elastic limiting pieces enclose a cone which protrudes outwards along the water outlet direction of the water distribution spray pipe, when sewage breaks through the plugs of the elastic limiting pieces, the water pressure loss is small.

The present invention may be further configured in a preferred embodiment as: the spacing layer comprises a spacing block arranged on the inner wall of one side of the reaction cylinder, a reticular upper spacing plate and a reticular lower spacing plate are arranged on the circumferential wall of the spacing block, the upper spacing plate is positioned above the lower spacing plate, the upper spacing plate and the lower spacing plate are both horizontally arranged, and a plurality of second suspension balls for attaching microorganisms are filled between the upper spacing plate and the lower spacing plate; the sum of the cross sectional areas of the spacing blocks and the upper spacing plate is equal to the cross sectional area of the reaction cylinder;

the aeration device comprises an aeration plate connected to the upper surface of the upper partition plate, the cross section area of the aeration plate is smaller than that of the upper partition plate, a plurality of aeration spray pipes for increasing the oxygen content of the water body are arranged on the bottom surface of the aeration plate, and the aeration spray pipes extend downwards along the vertical direction and penetrate into the area between the upper partition plate and the lower partition plate;

the spacing layer also comprises a guide plate for guiding oxygen into a water body where the biological filter layer is located, the guide plate is obliquely arranged and is positioned below the lower spacing plate, and the height of one end, connected to the inner wall of the reaction cylinder, of the guide plate is lower than that of one end, far away from the inner wall of the reaction cylinder, of the guide plate; the aeration plate is partially projected in the guide plate.

By adopting the technical scheme, a plurality of aeration spray pipes arranged at the bottom of the aeration plate are utilized to introduce proper oxygen into the water body, so that the dissolved oxygen of the water body above the spacing layer is increased; the guide plate is arranged for preventing oxygen sprayed by the aeration spray pipe from directly entering a water body where the adjusting layer is located on one hand, so that the condition that anaerobic granular sludge is greatly inactivated is avoided; on the other hand, the oxygen spraying device is also used for guiding the oxygen sprayed by the aeration spray pipe, so that most of the oxygen bubbles sprayed downwards by the aeration spray pipe can float upwards after being blocked by the guide plate;

meanwhile, because partial facultative anaerobes exist in the anaerobic granular sludge, even if a small part of oxygen enters a water area where the regulating layer is located, a large amount of inactivation of anaerobic activated sludge cannot be caused.

Because the hydrolytic acidification bacteria in the regulating layer decompose macromolecular organic matters and the oxygen sprayed by the aeration spray pipe is supplied, the water environment of the spacer layer is very suitable for the growth of aerobic microorganisms, and if relevant regulation and control measures are lacked, the water flow of the water section of the spacer layer is easily hindered after the aerobic microorganisms gather into the micelle bacteria;

and by means of the second suspension balls arranged between the upper partition plate and the lower partition plate and the flushing of the aeration spray pipes on the second suspension balls, the growth and aggregation of aerobic microorganisms can be regulated to a certain degree, and the accidental growth of the aerobic microorganisms in the water section where the partition layer is located is avoided.

The present invention may be further configured in a preferred embodiment as: the limiting mechanism comprises an annular limiting plate arranged below the water distribution pipe, one surface of the annular limiting plate, facing the water distribution pipe, is provided with an annular limiting groove, and the bottom of the water distribution pipe is accommodated in the limiting groove.

By adopting the technical scheme, the limiting grooves are formed in the annular limiting plate to support and limit the bottom of the water distribution pipe, so that the water distribution pipe can stably rotate along the central axis of the water distribution pipe under the reaction force of water flow jet.

The present invention may be further configured in a preferred embodiment as: the longitudinal section of the baffle plate is arc-shaped, and the position of one end of the baffle plate connected with the guide plate is higher than the position of one end of the baffle plate far away from the guide plate; the aeration plate is partially projected in the blocking plate.

By adopting the technical scheme, when the aeration spray pipe opposite to the blocking plate sprays oxygen downwards, a small amount of water can be driven to flow downwards, after the downward water flow impacts on the blocking plate, the water flow can continue to flow upwards in an inclined manner by virtue of the cambered surface of the blocking plate, and the flow direction of the water flow is opposite to the flow direction of normal water flow in the reaction cylinder, so that the water flow passing through the regulating layer is hindered to a certain extent when flowing through the blocking plate;

because the settling performance of the anaerobic granular sludge is superior, even if a small amount of floating anaerobic granular sludge floats up to the water area where the blocking plate is positioned along with the water flow, the floating anaerobic granular sludge can fall into the water section where the adjusting layer is positioned again due to the blocking of the reverse water flow; in this process, because the anaerobic granular sludge is in contact with oxygen for a short time, anaerobic bacteria in the anaerobic granular sludge do not die in a large amount.

The present invention may be further configured in a preferred embodiment as: the two sides of the inner wall of the reaction cylinder are provided with supporting plates used for connecting the carrier device in a staggered manner, the supporting plates are positioned between the upper bearing plate and the lower bearing plate which are matched with each other, and partial meshes of the upper bearing plate and the lower bearing plate are sealed by the supporting plates; the upper bearing plate is obliquely arranged, the upper surface of the upper bearing plate is connected with a washing plate, the washing plate and the supporting plate are mutually abutted in the projection on the ground, and the sum of the cross sectional areas of the washing plate and the supporting plate is smaller than the cross sectional area of the upper bearing plate;

a plurality of flushing spray pipes for flushing the aged biological membranes attached to the surfaces of the first floating spheres are uniformly arranged on the bottom surface of the flushing plate, and the extension direction of the flushing spray pipes is vertical to the upper surface of the upper bearing plate; one side of the reaction cylinder is provided with a sludge tank for collecting aged biological membranes, the sludge tank is communicated with the reaction cylinder through a plurality of first sludge discharge pipes, the first sludge discharge pipes correspond to the flushing plates one by one, and one end of each first sludge discharge pipe penetrating into the reaction cylinder is positioned at an included angle between the flushing plate and the inner wall of the reaction cylinder; and a second sludge discharge pipe for cleaning the aged biological membrane is arranged at an included angle between the guide plate and the inner wall of the reaction cylinder, and one end of the second sludge discharge pipe, which is far away from the reaction cylinder, is communicated with a sludge tank.

By adopting the technical scheme, the supporting plates which are arranged on the inner wall of the reaction cylinder in a staggered mode are utilized, and the flushing plates which are connected to the upper bearing plate are matched, so that the sewage body is prevented from directly floating up to the top of the reaction cylinder from the bottom of the reaction cylinder, and the sewage body can flow to the water section where the water outlet pipe is located after passing through a section of serpentine loop which is bent repeatedly in the biological filter layer; the reaction time of the sewage body in the biological filter layer can be prolonged, so that the sewage body obtains better treatment effect;

along with the accumulation of time, a layer of thick biological membrane is finally attached to each carrier device in the biological filter layer, and the aged biological membrane falls off from the surface of the carrier device by means of the flushing treatment of the flushing spray pipe; meanwhile, each upper bearing plate is connected with a flushing plate, and the flushing plates are matched with the supporting plates, so that the aged biological films falling off from the carrier device can be effectively borne and collected, and the condition that the aged biological films fall onto other carrier devices can be avoided;

as for the setting of first sludge discharge pipe, second sludge discharge pipe and sludge discharge pond, be in order to in time clear up the ageing biomembrane that washing plate and backup pad are piled up.

The present invention may be further configured in a preferred embodiment as: the reaction cylinder is provided with a sealing baffle above the baffle plate, the sealing baffle is rotationally connected to the inner wall of the reaction cylinder, and one end of the sealing baffle, which is far away from the inner wall of the reaction cylinder, is abutted against one end of the aeration plate, which is far away from the spacing block; the sum of the cross sectional areas of the sealing baffle, the aeration plate and the spacing block is larger than the cross sectional area of the reaction cylinder.

By adopting the technical scheme, the water inlet pipe is generally closed before the flushing spray pipe is operated to clean the aged biological membrane on the surface of the carrier device; at this moment, because the water impact that the inlet tube brought is lacked in sealing baffle below, so sealing baffle can slowly fall and finally butt in one side of aeration board under its self action of gravity, through sealing baffle, aeration board and the cooperation of spacing piece, the water between regulation layer and the biological filter layer is separated temporarily, so the ageing biomembrane that drops on the carrier device can't get into the regulation layer place water section, so the mud pipe can fully collect ageing biomembrane.

The present invention may be further configured in a preferred embodiment as: one end of the sealing baffle, which is far away from the inner wall of the reaction cylinder, is coated with an elastic buffer cushion sleeve.

Through adopting above-mentioned technical scheme, utilize the existence of cushion cover, keep away from the one end of reaction cylinder inner wall to sealing baffle and protect to this slows down sealing baffle and rotates the in-process, to the impact that the aeration board caused.

The present invention may be further configured in a preferred embodiment as: a gas collecting pipe for collecting methane is arranged at the top of the reaction cylinder; the water outlet pipe penetrates one end of the upper part of the reaction cylinder and is completely submerged in the sewage body.

By adopting the technical scheme, as part of methane bacteria exist in the anaerobic granular sludge, a small amount of methane gas can be generated in the sewage treatment process in the reaction cylinder, and in order to avoid the methane gas from escaping into the air, a gas collecting pipe is arranged to collect the methane gas generated by the methane bacteria;

as for the water outlet pipe, one end of the water outlet pipe, which is positioned at the upper part of the reaction cylinder, is arranged in the sewage body, so that methane gas is prevented from escaping outwards through the water outlet pipe.

To sum up, the utility model discloses a following useful technological effect at least:

1. the anaerobic granular sludge in the adjusting layer is utilized to control the concentration of solid suspended matters in the sewage body, meanwhile, the pretreatment operation of the sewage body is completed, and macromolecular organic matters which are difficult to be utilized by bacteria in the sewage are decomposed into micromolecular substances which can be utilized by the bacteria, so that the aerobic microorganisms in the biological filter layer can conveniently oxidize and decompose the sewage;

2. the reaction force generated when the water flow is sprayed out is utilized to drive the water distribution pipe to rotate along the central axis of the water distribution pipe, so that the sewage is fully dispersed at the bottom of the reaction cylinder; meanwhile, the outer ring sludge raising plate and the inner ring sludge raising plate are arranged on the peripheral wall of the water distribution pipe, so that the anaerobic granular sludge is raised upwards, on one hand, the anaerobic granular sludge is prevented from hardening and inactivating at the bottom of the reaction cylinder, and on the other hand, the adsorption capacity of the anaerobic granular sludge is fully exerted.

3. The staggered supporting plates are matched with the flushing plates and the flushing spray pipes, so that the reaction time of the sewage body in the biological filter layer is prolonged, and the sewage treatment effect of the biological filter layer is improved;

4. the aged biological membrane is prevented from falling into other carrier devices by matching the supporting plate with the washing plate, so that the bioreactor can be ensured to have relatively high-efficiency treatment capacity on the aged biological membrane, and the cleaning difficulty of the aged biological membrane is correspondingly reduced;

5. collecting methane gas generated in the regulating layer by using the existence of the gas collecting pipe;

6. by utilizing the existence of the aeration plate and the second suspension ball, the aerobic microorganism growth of the water section between the biological filter layer and the adjusting layer is inhibited under the condition of ensuring that the water area where the biological filter layer is positioned has enough oxygen content, and the water flow rate in the reaction cylinder is ensured to keep a relatively stable state.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is an exploded view of the water distribution device of the present embodiment;

FIG. 5 is a detail view of the water distribution nozzle of the present embodiment;

fig. 6 is an exploded view of the water distributor and the ring-shaped limiting plate in this embodiment.

Reference numerals: 1. a reaction cylinder; 2. a conditioning layer; 3. a biological filter layer; 4. a spacer layer; 5. an aeration device; 6. a carrier device; 7. an upper bearing plate; 8. a lower bearing plate; 9. a first levitating sphere; 10. a water inlet pipe; 11. a water inlet pump; 12. a water distribution device; 13. a water outlet pipe; 14. a water distribution pipe; 15. a connecting pipe; 16. a water inlet block; 17. sealing the bearing; 18. a water distribution nozzle; 19. an inner ring mud raising plate; 20. an outer ring mud raising plate; 21. an elastic limiting sheet; 22. a spacer block; 23. an upper partition plate; 24. a lower partition plate; 25. a second levitated ball; 26. an aeration plate; 27. an aeration nozzle; 28. a guide plate; 29. a barrier plate; 30. a support plate; 31. washing the plate; 32. flushing the spray pipe; 33. a sludge tank; 34. a first sludge discharge pipe; 35. sealing the baffle; 36. a buffer cushion sleeve; 37. an annular limiting plate; 38. a limiting groove; 39. a gas collecting pipe; 40. a second sludge discharge pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the high efficiency hydrolysis bioreactor disclosed by the present invention comprises a reaction cylinder 1, wherein one side of the reaction cylinder 1 is connected with a water inlet pipe 10, and the water inlet pipe 10 continuously feeds domestic sewage to be treated into the reaction cylinder 1 through a water inlet pump 11; the water inlet pipe 10 extends along the horizontal direction and penetrates into the reaction cylinder 1, and the penetrating end is connected with a water distribution device 12 which is used for uniformly distributing sewage in the reaction cylinder 1; the upper part of the reaction cylinder 1 is correspondingly provided with a water outlet pipe 13, and the part of the water outlet pipe 13 positioned in the reaction cylinder 1 is completely immersed in the water body.

An adjusting layer 2 for removing colloid in the sewage and a biological filtering layer 3 for oxidizing and decomposing the sewage are sequentially arranged in the reaction cylinder 1 from bottom to top, a spacing layer 4 is arranged between the adjusting layer 2 and the biological filtering layer 3, and an aeration device 5 for supplying oxygen to the biological filtering layer 3 is arranged at the upper part of the spacing layer 4; the water distribution device 12 is positioned between the spacing layer 4 and the adjusting layer 2.

The adjusting layer 2 is composed of a plurality of anaerobic granular sludge, and the anaerobic granular sludge is generally positioned at the bottom of the reaction cylinder 1.

The biological filter layer 3 comprises a plurality of carrier devices 6 for carrying aerobic microorganisms, and the plurality of carrier devices 6 are arranged in parallel along the vertical direction. The carrier device 6 comprises an upper bearing plate 7 and a lower bearing plate 8 which are arranged in parallel, the cross sections of the upper bearing plate 7 and the lower bearing plate 8 are the same and are both in a net shape, the upper bearing plate 7 is obliquely arranged, the projection area of the upper bearing plate on the ground is the same as that of the reaction cylinder 1, and a plurality of first suspension balls 9 used for providing a microorganism living space are abutted between the upper bearing plate 7 and the lower bearing plate 8.

The inner wall of the reaction cylinder 1 is provided with support plates 30 for hanging the carrier devices 6 in a staggered manner, the support plates 30 correspond to the carrier devices 6 one by one, the support plates 30 are positioned between the upper bearing plate 7 and the lower bearing plate 8 which are arranged in pairs, and partial meshes of the upper bearing plate 7 are sealed by the support plates 30.

The upper surface of each upper bearing plate 7 is abutted with a flushing plate 31, the cross section area of the flushing plate 31 is smaller than that of the upper bearing plate 7, and the supporting blocks and the flushing plates 31 are abutted with each other in the projection on the ground; a plurality of flushing spray pipes 32 for flushing the aged biological membranes on the surfaces of the first floating spheres 9 are uniformly arranged on the bottom surface of the flushing plate 31, and the extending direction of the flushing spray pipes 32 is perpendicular to the bottom surface of the flushing plate 31.

After sewage enters the reaction cylinder 1 through the water inlet pipe 10, solid suspended matters contained in the sewage are removed through anaerobic granular sludge in the adjusting layer 2, and meanwhile macromolecular organic matters in the sewage are converted into micromolecular organic matters capable of being absorbed by bacteria; then the sewage passes through the water body where the spacing layer 4 is positioned, and finally is fully oxidized and decomposed by aerobic microorganisms attached to the first suspension balls 9 in the biological filter layer 3.

The upper bearing plate 7 and the lower bearing plate 8 are arranged obliquely so that more first suspension balls 9 can be accommodated between the upper bearing plate 7 and the lower bearing plate 8, and thus the reaction filter layer has more aerobic microorganisms capable of oxidizing and decomposing sewage.

And the upper surface of last loading board 7 butt wash board 31 to the supporting shoe of crisscross setting is cooperated, and its effect has three: firstly, the distance between the flushing spray pipe 32 on the bottom surface of the flushing plate 31 and the first suspension ball 9 is reduced as much as possible, so that the flushing capacity of the flushing spray pipe 32 on the first suspension ball 9 is improved, and thus after too many biological membranes are hung on the surface of the first suspension ball 9, the flushing spray pipe 32 can conveniently complete the flushing treatment on the aged biological membranes on the surface of the first suspension ball 9;

secondly, the sunken area between the washing plate 31 and the inner wall of the reaction cylinder 1 is utilized to collect the aged biomembrane dropped from the surface of the first suspension ball 9, so as to prevent the aged biomembrane from dropping into other carrier devices 6. The flushing device in the prior art is generally arranged at the upper side and the lower side of the biological filter layer 3, and in the flushing process, an aged biological membrane above the biological filter layer 3 is not actually discharged along with water flow after being flushed, but can float downwards for a certain distance and then be adhered in the biological filter layer 3 again, so that the flushing of the aged biological membrane is time-consuming and labor-consuming, and the actual flushing effect is poor; in the utility model, the situation that the aged biomembrane falls back and adheres to the rest of the carrier devices 6 can be effectively avoided through the matching of the flushing plate 31 and the flushing nozzle 32;

thirdly, partial meshes of the upper bearing plate 7 are sealed through the supporting blocks which are arranged in a staggered mode, so that when a water body flows through the water section of the biological filter layer 3, the whole motion track of the water body is in a snake shape, compared with the motion track of the conventional straight floating upward motion, the snake-shaped motion track can prolong the retention time of sewage in the biological filter layer 3, and aerobic micro-life in the biological filter layer 3 can obtain relatively sufficient time to complete the oxidative decomposition operation of the sewage water body.

For timely clearance fall the ageing biomembrane that drops, still be provided with the sludge impoundment 33 that is used for the ageing biomembrane of centralized processing in one side of reaction cylinder 1, sludge impoundment 33 is through a plurality of first mud pipes 34 and reaction cylinder 1 intercommunication, and the one end mouth of pipe that first mud pipe 34 is located reaction cylinder 1 is located the sunken regional bottom between washing board 31 and the 1 inner wall of reaction cylinder.

As shown in fig. 2 and 3, the spacer layer 4 comprises a spacer 22 arranged on the inner wall of one side of the reaction cylinder 1, a reticular upper spacer 23 and a reticular lower spacer 24 are arranged on the peripheral wall of the spacer 22, the upper spacer 23 is positioned above the lower spacer 24, the upper spacer 23 and the lower spacer 24 are both horizontally arranged, and a plurality of second suspension balls 25 for attaching microorganisms are filled between the upper spacer 23 and the lower spacer 24; the sum of the cross-sectional areas of the spacer 22 and the upper spacer 23 is equal to the cross-sectional area of the reaction cylinder 1.

The aeration device 5 comprises an aeration plate 26 connected to the upper surface of the upper partition plate 23, the cross-sectional area of the aeration plate 26 is smaller than that of the upper partition plate 23, a plurality of aeration nozzles 27 for increasing the oxygen content of the water body are arranged on the bottom surface of the aeration plate 26, and the aeration nozzles 27 extend downwards along the vertical direction and penetrate into the area between the upper partition plate 23 and the lower partition plate 24.

Oxygen is blown into the water body by the aeration nozzle 27 to increase the oxygen content of the water body of the water section where the spacing layer 4 is located, and simultaneously, because the oxygen density is lower than that of the water, the oxygen sprayed by the aeration nozzle 27 is blocked by the guide plate 28 and begins to float upwards, and the floating oxygen is finally utilized by aerobic microorganisms in the biological filter layer 3.

In the process of blowing oxygen into the reaction cylinder 1, as the oxygen content of the water section between the upper partition plate 23 and the lower partition plate 24 is higher, and meanwhile, the content of micromolecular organic matters in the water section is also higher after hydrolysis treatment by the hydrolytic bacteria in the adjusting layer 2, aerobic microorganisms in the sewage water body can rapidly propagate on the surfaces of the second suspension balls 25 between the upper partition plate 23 and the lower partition plate 24;

however, because the aeration nozzle 27 sprays oxygen outwards towards the second suspension ball 25, the number of aerobic microorganisms attached to the surface of the second suspension ball 25 is controlled to a certain extent, which not only can avoid the rapid consumption of oxygen in the water section where the spacer block 22 is located, but also can timely wash down the aged biofilm on the surface of the second suspension ball 25, thereby ensuring that the aerobic microorganisms attached to the surface of the second suspension ball 25 always have a good metabolic rate.

In order to clean the aged biomembrane falling on the guide plate 28 in time, a second sludge discharge pipe 40 is also arranged in the downward concave area between the guide plate 28 and the inner wall of the reaction cylinder 1, the second sludge discharge pipe 40 outwards penetrates out of the reaction cylinder 1, and the penetrating end is communicated with the sludge tank 33.

Meanwhile, in order to prevent anaerobic granular sludge from entering the water section where the spacing layer 4 is located, a blocking plate 29 is further arranged at one end, away from the inner wall of the reaction cylinder 1, of the guide plate 28, and the longitudinal section of the blocking plate 29 is arc-shaped; the aeration nozzle 27 at the bottom of the aeration plate 26 is partially projected on the barrier plate 29.

When the oxygen is sprayed out from the aeration nozzle 27, the surrounding water bodies are driven to flow, and after being intercepted by the baffle plate 29, the water bodies reversely flow along the arc surface of the baffle plate 29, which is opposite to the normal water body flow direction of the water body in the reaction cylinder 1, so that a certain water flow opposite impact exists in the water section above the baffle plate 29, and the anaerobic granular sludge in the adjusting layer 2 is prevented from entering the water section where the spacing layer 4 is located by the aid of the water flow opposite impact force, so that long-time contact between the oxygen and the anaerobic granular sludge is avoided.

The inner wall of the reaction cylinder 1 is also rotatably connected with a sealing baffle 35 at one side of the aeration plate 26 far away from the spacing block 22, and the sum of the cross sectional areas of the sealing baffle 35, the aeration plate 26 and the spacing block 22 is larger than the cross sectional area of the reaction cylinder 1; when washing out the ageing biomembrane of spray tube 32 to biological filter layer 3, because the water impact that inlet tube 10 brought, sealing baffle 35 will fall back and lean on under its action of gravity and lean on in aeration plate 26 and keep away from one side of spacer 22, with the help of sealing baffle 35, aeration plate 26 and the cooperation of spacer 22, biological filter layer 3 and the water of regulation layer 2 are thoroughly separated, so biological filter layer 3's the processing of washing out can not cause the harm to the anaerobic particle mud of regulation layer 2.

In order to reduce the impact force between the sealing baffle 35 and the aeration plate 26, an elastic buffer sleeve 36 is sleeved at one end of the sealing baffle 35 close to the aeration plate 26.

As shown in fig. 2 and 4, the water distribution device 12 includes an annular water distribution pipe 14, the water distribution pipe 14 is erected above the anaerobic granular sludge layer through a limiting device, a circular water inlet block 16 is arranged in a circumferential region surrounded by the water distribution pipe 14, the water inlet block 16 is hollow inside, and three connecting pipes 15 for communicating the water distribution pipe 14 are arranged on the side wall of the water inlet block 16; one end of the water inlet pipe 10 extending into the reaction cylinder 1 is communicated with the inner cavity of the water inlet block 16 through a sealing bearing 17.

A plurality of water distribution nozzles 18 are uniformly arranged on the peripheral wall of the water distribution pipe 14, the water distribution nozzles 18 extend along the horizontal direction, and the extending direction of the nozzles of the water distribution nozzles 18 is tangent to the peripheral wall of the water distribution pipe 14.

An inner ring sludge raising plate 19 and an outer ring sludge raising plate 20 for raising anaerobic granular sludge are arranged on the peripheral wall of the water distribution pipe 14. The three inner ring mud raising plates 19 are symmetrically distributed along the central axis of the water distribution pipe 14, and the inner ring mud raising plates 19 are positioned in a circumferential area defined by the water distribution pipe 14; the outer ring of the pumping plates 20 are four and are also symmetrically distributed along the central axis of the water distribution pipe 14, and the outer ring of the pumping plates 20 is located outside the circumferential area surrounded by the water distribution pipe 14.

The sewage water flow is introduced into the water distribution pipes 14 by using the water inlet pipe 10, and is sprayed outwards through the water distribution spray pipes 18 tangent to the peripheral walls of the water distribution pipes 14, and the annular water distribution pipes 14 are pushed to rotate along the central axes thereof by virtue of the reaction force generated during water flow spraying, so that the sewage water flow is uniformly dispersed in the reaction cylinder 1, and the sewage water flow is ensured to be fully contacted with anaerobic granular sludge at the bottom of the reaction cylinder 1.

And as the water distribution pipe 14 rotates, the inner ring sludge raising plate 19 and the outer ring sludge raising plate 20 which are arranged on the peripheral wall of the water distribution pipe 14 also carry out circular motion, and the anaerobic granular sludge of the anaerobic granular sludge layer can be raised upwards from the bottom of the reaction cylinder 1 through the stirring of the inner ring sludge raising plate 19 and the outer ring sludge raising plate 20 in the anaerobic granular sludge layer.

Because part of aerobic microorganisms in the biological filter layer 3 are mutually bonded and form micelle bacteria, the surface of the micelle bacteria has stronger adsorption capacity, and solid suspended matters in the water body are easily adhered by the micelle bacteria; therefore, when the aerobic microorganisms in the biological filter layer 3 multiply, the volume of the zoogloea in the biological filter layer 3 can be correspondingly increased; when the colloid in the sewage water body is too much, the surface area of the micelle bacteria can be rapidly expanded, so that the contact area of part of aerobic microorganisms in the biological filter layer 3 and the sewage water body is squeezed, and meanwhile, the flowing of the sewage water body is delayed to a certain extent, so that the filtering effect and the filtering efficiency of the biological filter layer 3 are reduced, and on the basis, the concentration of solid suspended matters in the water body entering the biological filter layer 3 needs to be controlled, so that the expansion rate of the surface area of the micelle bacteria is in a proper range;

the anaerobic granular sludge of the adjusting layer 2 is set for controlling the concentration of solid suspended matters at the water inlet of the biological filter layer 3, and the anaerobic granular sludge with strong adsorption capacity is used for cleaning the sewage body entering the reaction cylinder 1 and adsorbing the solid suspended matters mixed in the sewage body on the surface of the anaerobic granular sludge.

Meanwhile, because the anaerobic granular sludge is stirred and floats upwards by the inner ring sludge raising plate 19 and the outer ring sludge raising plate 20, even if a large amount of colloid is adhered to the surface of the anaerobic granules, the flow of the sewage water body cannot be slowed down, and the sewage treatment efficiency in the whole reaction cylinder 1 can be maintained in a relatively constant range.

In addition, as partial hydrolytic bacteria exist in the anaerobic granular sludge of the adjusting layer 2, macromolecular organic matters existing in the sewage water body are decomposed into micromolecular organic matters easy to be absorbed by bacteria through extracellular enzymes outside the cell membranes of the hydrolytic bacteria, the micromolecular organic matters can be absorbed in the adjusting layer 2 in a small amount, most of the rest of the micromolecular organic matters flow to the area where the biological filter layer 3 is located along with the sewage water body, and the step of pretreating the macromolecular organic matters is omitted, so that the treatment efficiency of the biological filter layer 3 on the sewage water body is improved to a certain extent.

Because a part of methane bacteria exist in the anaerobic granular sludge, a gas collecting pipe 39 for collecting methane gas is also arranged at the top of the reaction cylinder 1.

As shown in fig. 5, in order to prevent the water outlet of the water distribution nozzle 18 from being blocked by floating anaerobic granular sludge, four elastic limiting pieces 21 for closing the water outlet are arranged around the water outlet of the water distribution nozzle 18, the four elastic limiting pieces 21 are mutually abutted and enclosed into a cone, and the cone enclosed by the four elastic limiting pieces 21 protrudes outwards along the water flow spraying direction.

Because the cone formed by the four elastic limiting pieces 21 protrudes outwards along the water flow spraying direction, the four elastic limiting pieces 21 which are mutually abutted can be easily pushed open by sewage in the water distribution pipe 14 by means of water pressure, and the water head loss of the sewage is small when the sewage is sprayed outwards through the water distribution spray pipe 18;

when the water distribution nozzle 18 stops spraying water, the elastic limiting piece 21 pushed open by the sewage flow resets, the water outlet of the water distribution nozzle 18 is closed again, and floating anaerobic granular sludge is prevented from entering the water distribution nozzle 18, so that the whole water distribution device 12 has better anti-blocking capability.

As shown in fig. 2 and fig. 6, the limiting device includes an annular limiting plate 37 disposed below the water distribution pipes 14, the bottom end of the annular limiting plate 37 is fixedly connected to the inner bottom surface of the reaction cylinder 1 through a support leg, an annular limiting groove 38 is further formed in a surface of the annular limiting plate 37 facing the water distribution pipes 14, and the lower portion of the water distribution pipes 14 is received in the limiting groove 38. By the support and the limit of the annular limit plate 37, the water distributor 14 can keep better structural stability during the autorotation process.

In conclusion, the occupied area of the biological aerated filter method is reduced as much as possible by uniformly arranging a plurality of carrier devices 6 in one reaction cylinder 1 along the vertical direction; meanwhile, in order to avoid additionally arranging a field for preposed sewage sedimentation, the bottom of the reaction cylinder 1 is also provided with an adjusting layer 2 consisting of anaerobic granular sludge, so that the internal space of the reaction cylinder 1 can be fully utilized, and the occupied area of the biological aerated filter method can be further reduced, therefore, compared with the sewage treatment equipment in the prior art, the sewage treatment equipment has lower construction cost;

meanwhile, as the flushing plate 31 is arranged on the upper surface of the upper bearing plate 7, the flushing effect of the flushing spray pipe 32 on the aged biological membrane on the surface of the first suspension ball 9 is stronger, so that compared with the sewage treatment equipment in the prior art, the utility model has lower later maintenance difficulty;

and because a plurality of washing boards 31 set up at 1 inner wall of reaction cylinder is crisscross, so sewage can carry out corresponding buckling in the flow path of carrier device 6 place water section, and this makes sewage carry out certain extension in the detention time of carrier device 6 place water section, consequently mix with the organic matter in the sewage and will obtain comparatively abundant oxidative decomposition in reaction cylinder 1 and handle, so the utility model discloses sewage treatment equipment among the relative prior art, its sewage treatment effect is stronger.

The working principle is as follows:

after being pumped into the reaction cylinder 1 by the water inlet pump 11, the domestic sewage is sprayed out through the water distribution spray pipe 18, and the water distribution pipe 14 rotates in the limiting groove 38 of the annular limiting plate 37 by the reaction force generated when water flow is sprayed out; in the process, the outer ring sludge raising plates 20 and the inner ring sludge raising plates 19 on the two sides of the water distribution pipe 14 perform circular motion along with the water distribution pipe 14, and the lower part of the water distribution pipe 14 is stirred by the outer ring sludge raising plates 20 and the inner ring sludge raising plates 19.

Solid suspended matters in the sewage can be adsorbed on the surface of the anaerobic granular sludge, and meanwhile, hydrolytic bacteria in the anaerobic granular sludge can start to decompose macromolecular organic matters in the water body;

after the sewage is pretreated by the anaerobic granular sludge of the layer 2 to be regulated, the sewage flows into the water section where the spacing layer 4 is positioned, a small amount of anaerobic granular sludge mixed in the sewage can be forced to sink due to the water flow opposite flushing caused by the separation plate 29, and the sewage gradually enters the lower part of the lower spacing plate 24 through the water flow opposite flushing.

With the further flow of the sewage, the sewage rich in oxygen and small molecular organic matters finally comes to the biological filter layer 3, and the turbid sewage finally becomes clearer through the oxidative decomposition of the aerobic microorganisms attached to the surface of the first suspension ball 9, wherein a large amount of organic matters are also consumed, and after the sewage flows through the reaction cylinder 1 for multiple times, the sewage water body finally reaches the standard of proper discharge. The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. A high-efficiency hydrolysis bioreactor comprises a cylindrical reaction cylinder (1), wherein a biological filter layer (3) for oxidizing and decomposing sewage and an aeration device (5) for supplying oxygen to the biological filter layer (3) are arranged in the reaction cylinder (1), the biological filter layer (3) comprises a plurality of carrier devices (6) for hanging aerobic microorganisms, and the carrier devices (6) are arranged in parallel along the vertical direction; each carrier device (6) comprises an upper bearing plate (7) and a lower bearing plate (8) which are arranged in parallel, the upper bearing plate (7) and the lower bearing plate (8) are both net-shaped, and a plurality of first suspension balls (9) for attaching aerobic microorganisms are filled between the upper bearing plate and the lower bearing plate; the method is characterized in that: an adjusting layer (2) used for removing colloidal impurities in sewage is arranged in the reaction cylinder (1), the adjusting layer (2) is composed of anaerobic granular sludge, the adjusting layer (2) is positioned below the biological filtering layer (3), a spacing layer (4) is arranged between the adjusting layer (2) and the biological filtering layer (3), and an aeration device (5) is connected to the upper part of the spacing layer (4); the lower part of the reaction cylinder (1) is communicated with a water inlet pipe (10) for supplying domestic sewage to the reaction cylinder (1), one end of the water inlet pipe (10) penetrating into the reaction cylinder (1) is connected with a water distribution device (12) for uniformly distributing the domestic sewage in the reaction cylinder (1), and the water distribution device (12) is arranged between the adjusting layer (2) and the spacing layer (4); the upper part of the reaction cylinder (1) is connected with a water outlet pipe (13).

2. The high efficiency hydrolysis bioreactor of claim 1, wherein: the water distribution device (12) comprises an annular water distribution pipe (14), and the water distribution pipe (14) is arranged above the adjusting layer (2) through a limiting mechanism; the inner side of the water distribution pipe (14) is communicated with a plurality of connecting pipes (15), one ends of the connecting pipes (15) far away from the water distribution pipe (14) are communicated with the same water inlet block (16), the water inlet block (16) is hollow, and the bottom of the water inlet block is communicated with one end of the water inlet pipe (10) penetrating into the reaction cylinder (1) through a sealing bearing (17); a plurality of water distribution nozzles (18) for spraying domestic sewage are arranged on the peripheral wall of the outer side of the water distribution pipe (14), and the extending direction of the nozzles of the water distribution nozzles (18) is tangential to the circumferential direction of the water distribution pipe (14); the inner side peripheral wall of the water distribution pipe (14) is uniformly provided with a plurality of inner ring sludge raising plates (19) for raising anaerobic granular sludge, and the outer side peripheral wall of the water distribution pipe (14) is uniformly provided with a plurality of outer ring sludge raising plates (20) for raising anaerobic granular sludge.

3. The high efficiency hydrolysis bioreactor of claim 2, wherein: the water distribution nozzle (18) is provided with a plurality of elastic limiting pieces (21) for sealing the water distribution nozzle (18) at the end of the nozzle far away from the water distribution pipe (14), the elastic limiting pieces (21) are mutually abutted and enclosed into a cone, and the cone enclosed by the elastic limiting pieces (21) is outwards protruded along the water outlet direction of the water distribution nozzle (18).

4. The high efficiency hydrolysis bioreactor of claim 2, wherein: the spacing layer (4) comprises spacing blocks (22) arranged on the inner wall of one side of the reaction cylinder (1), the peripheral walls of the spacing blocks (22) are provided with a reticular upper spacing plate (23) and a reticular lower spacing plate (24), the upper spacing plate (23) is positioned above the lower spacing plate (24), the upper spacing plate (23) and the lower spacing plate (24) are both horizontally arranged, and a plurality of second suspension balls (25) for attaching microorganisms are filled between the upper spacing plate (23) and the lower spacing plate (24); the sum of the cross sectional areas of the spacing block (22) and the upper spacing plate (23) is equal to the cross sectional area of the reaction cylinder (1);

the aeration device (5) comprises an aeration plate (26) connected to the upper surface of the upper partition plate (23), the cross section area of the aeration plate (26) is smaller than that of the upper partition plate (23), a plurality of aeration spray pipes (27) used for increasing the oxygen content of the water body are arranged on the bottom surface of the aeration plate (26), and the aeration spray pipes (27) extend downwards along the vertical direction and penetrate into the area between the upper partition plate (23) and the lower partition plate (24);

the spacing layer (4) further comprises a guide plate (28) used for guiding oxygen into a water body where the biological filter layer (3) is located, the guide plate (28) is obliquely arranged and is located below the lower spacing plate (24), and the height of one end, connected to the inner wall of the reaction cylinder (1), of the guide plate (28) is lower than that of one end, far away from the inner wall of the reaction cylinder (1), of the guide plate (28); the aeration plate (26) is partially projected in the guide plate (28).

5. The high efficiency hydrolysis bioreactor of claim 2, wherein: the limiting mechanism comprises an annular limiting plate (37) arranged below the water distribution pipe (14), one surface, facing the water distribution pipe (14), of the annular limiting plate (37) is provided with an annular limiting groove (38), and the bottom of the water distribution pipe (14) is accommodated in the limiting groove (38).

6. The high efficiency hydrolysis bioreactor of claim 4, wherein: one end of the guide plate (28) far away from the inner wall of the reaction cylinder (1) is connected with a blocking plate (29) for blocking oxygen from directly entering a water body where the adjusting layer (2) is located, the longitudinal section of the blocking plate (29) is arc-shaped, and the position of one end, connected with the guide plate (28), of the blocking plate (29) is higher than the position of one end, far away from the guide plate (28), of the blocking plate (29); the aeration plate (26) is partially projected in the baffle plate (29).

7. The high efficiency hydrolysis bioreactor of claim 1, wherein: supporting plates (30) used for connecting the carrier device (6) are arranged on two sides of the inner wall of the reaction cylinder (1) in a staggered mode, the supporting plates (30) are located between an upper bearing plate (7) and a lower bearing plate (8) which are matched with each other, and partial meshes of the upper bearing plate (7) and the lower bearing plate (8) are sealed by the supporting plates (30); the upper bearing plate (7) is obliquely arranged, the upper surface of the upper bearing plate is connected with a flushing plate (31), the flushing plate (31) and the supporting plate (30) are mutually abutted in the projection on the ground, and the sum of the cross sectional areas of the flushing plate (31) and the supporting plate (30) is smaller than the cross sectional area of the upper bearing plate (7); a plurality of flushing spray pipes (32) used for flushing the aged biological membranes attached to the surfaces of the first suspension balls (9) are uniformly arranged on the bottom surface of the flushing plate (31), and the extension direction of the flushing spray pipes (32) is vertical to the upper surface of the upper bearing plate (7); one side of the reaction cylinder (1) is provided with a sludge tank (33) for collecting aged biological membranes, the sludge tank (33) is communicated with the reaction cylinder (1) through a plurality of first sludge discharge pipes (34), the first sludge discharge pipes (34) are in one-to-one correspondence with the flushing plate (31), and one end of each first sludge discharge pipe (34) penetrating into the reaction cylinder (1) is positioned at an included angle between the flushing plate (31) and the inner wall of the reaction cylinder (1); a second sludge discharge pipe (40) for cleaning the aged biological membrane is arranged at the included angle between the guide plate (28) and the inner wall of the reaction cylinder (1), and one end of the second sludge discharge pipe (40) far away from the reaction cylinder (1) is communicated with the sludge tank (33).

8. The high efficiency hydrolysis bioreactor of claim 6, wherein: a sealing baffle (35) is arranged above the blocking plate (29) of the reaction cylinder (1), the sealing baffle (35) is rotatably connected to the inner wall of the reaction cylinder (1), and one end, far away from the inner wall of the reaction cylinder (1), of the sealing baffle (35) is abutted to one end, far away from the spacing block (22), of the aeration plate (26); the sum of the cross sectional areas of the sealing baffle plate (35), the aeration plate (26) and the spacing block (22) is larger than the cross sectional area of the reaction cylinder (1).

9. The high efficiency hydrolysis bioreactor of claim 8, wherein: one end of the sealing baffle (35) far away from the inner wall of the reaction cylinder (1) is coated with an elastic buffer sleeve (36).

10. The high efficiency hydrolysis bioreactor of claim 1, wherein: a gas collecting pipe (39) for collecting biogas is arranged at the top of the reaction cylinder (1); the water outlet pipe (13) penetrates one end of the upper part of the reaction cylinder (1) and is completely submerged in the sewage body.

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