Sludge self-inoculation type bio-membrane reactor

Abstract

The utility model provides a sludge self-inoculation type bio-membrane reactor, which relates to the technical field of bio-membrane reactors and comprises a reactor, a storage tank and a clean water tank, the storage tank and the clean water tank are respectively arranged on the left side and the right side of the reactor, a packing area is arranged on the lower portion inside the reactor, and a lifting pump is arranged at the bottom inside the storage tank. A filler area is arranged in the reactor, a water inlet area is arranged at the lower part in the reactor, a bearing plate is arranged in the reactor below the filler area, the output end of the lifting pump is connected with the water inlet area through a connecting pipe, and an air blower is arranged at one side of the reactor; according to the utility model, continuous contact can be formed between inoculated sludge and biological stuffing, the contact time and the inoculation area are increased, the formation process of a biological membrane is accelerated on the basis of providing external oxygen supply and nutrition conditions, the formation time is shortened, the adhesion effect is optimized, and a good inoculation effect is achieved in the inoculation process of domestic sewage with a low carbon-nitrogen ratio.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological membrane reactor technical field especially relates to a sludge self inoculation formula biological membrane reactor. BACKGROUND

[0002] Biological membrane reactor is a new type of water treatment technology combined by membrane separation unit and biological treatment unit, through adding various fillers in the reactor to make microorganism attach and grow, form a layer of biological structure similar to membrane, for sewage treatment;

[0003] In the existing biological membrane reactor technology, the formation of biological membrane is a relatively long process, and its efficiency and attachment effect directly determine the treatment capacity of the reactor for sewage, although the traditional inoculation and smothering method can promote the attachment of biological membrane to a certain extent, the effect is not remarkable, especially when facing low carbon nitrogen ratio domestic sewage, the limitation of this method is particularly obvious, therefore, the utility model provides a sludge self inoculation formula biological membrane reactor to solve the problems existing in the prior art. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model provides a sludge self inoculation formula biological membrane reactor, which can form continuous contact between inoculated sludge and biological filler, increase contact time and inoculation area, accelerate the formation process of biological membrane on the basis of providing external oxygen supply and nutrient conditions, reduce the formation time and optimize the attachment effect, and has good inoculation effect in the inoculation process of low carbon nitrogen ratio domestic sewage.

[0005] In order to realize the purpose of the utility model, the utility model realizes the following technical scheme: a sludge self inoculation formula biological membrane reactor, which comprises a reactor, a storage tank and a clean water pool arranged at left and right positions of the reactor, a filler area is arranged at the lower part of the reactor, a lifting pump is arranged at the bottom of the storage tank, a supporting plate is arranged in the reactor at the lower position of the filler area, the output end of the lifting pump is connected with the water inlet area through a connecting pipe, a blower is arranged at one side of the reactor, an aeration system is arranged in the water inlet area of the reactor at the lower position of the supporting plate, and a wind pipe is connected between the output end of the blower and the aeration system.

[0006] A circulating port is arranged at the middle position of the left side of the reactor, a circulating pipe is connected to the circulating port, the lower end of the circulating pipe is inserted into the top of the storage tank, a first valve is arranged on the circulating pipe, and a water outlet and an overflow port are arranged on the upper end of the right side of the reactor from bottom to top, and the water outlet is used to be connected with the clean water pool.

[0007] Further improvement lies in that the upper end of the left side of the storage tank is provided with a raw water supplementing port, the top of the storage tank is provided with a float ball controller, the float ball of the float ball controller extends into the storage tank, and the float ball controller is electrically connected with the lifting pump.

[0008] Further improvement lies in that the water outlet is connected with a water outlet pipe, the water outlet pipe is provided with a second valve, the inside of the clean water pool is provided with a backwashing pump, one end of the water outlet pipe extends into the inside of the clean water pool and is connected with the backwashing pump, the clean water pool water inlet pipe is provided with a fourth valve, and the water outlet pipe is connected with the clean water pool through the clean water pool water inlet pipe.

[0009] Further improvement lies in that the end, away from the backwashing pump, of the water outlet pipe is connected with a backwashing pipe, the backwashing pipe is provided with a third valve, and the lower end of the backwashing pipe extends below the water inlet area.

[0010] Further improvement lies in that the air pipe is provided with a one-way valve.

[0011] Further improvement lies in that the water outlet pipe, connected with the backwashing pump, in the clean water pool is provided with a one-way valve.

[0012] Further improvement lies in that the connecting pipe between the lifting pump and the water inlet area is provided with a one-way valve.

[0013] Further improvement lies in that the overflow port is used for connecting with an adjusting pool or a drainage pit.

[0014] Further improvement lies in that the upper end of the front end of the reactor is provided with an observation port, and the observation port is provided with an observation window.

[0015] The beneficial effects of the utility model are:

[0016] 1. The utility model discloses a storage tank is used for containing inoculated sludge and sewage mixed solution, when reaching the highest liquid level, the lifting pump runs, simultaneously, the air blower supplies oxygen through the aeration system, the mixed solution passes through the filler area evenly through the inner aperture of the supporting layer, in this process, the second valve, the third valve and the fourth valve are closed, and the first valve is opened, a passageway for the mixed solution circulation is formed through the circulating pipe and the storage tank, makes the activated sludge pass through the filler area many times, increases the contact time and inoculation time, simultaneously, the nature of the sludge before entering the circulating pipe can judge the sludge and biofilm treatment effect, and whether the sludge needs to be increased, in conclusion, can form the sustained contact between the inoculated sludge and biological filler, increase the contact time and inoculation area, on the basis of providing external oxygen supply and nutrient conditions, accelerates the formation process of the biofilm, reduces the formation time and optimizes the adhesion effect, has good inoculation effect in the inoculation process of low carbon nitrogen ratio domestic sewage.

[0017] 2, the utility model discloses after inoculation is completed, closes first valve, and through the raw water make -up mouth of storage tank before access to the continuous water, and the reactor is discharged from the supporting plate, and closes third valve, opens second valve and fourth valve simultaneously, and through the water outlet and water outlet pipe normal make -up water to clean water pool, when the need of packing area is backwashing, closes second valve and fourth valve, and opens third valve, and the backflushing pump promotes water from clean water pool and enters the reactor bottom through backflushing pipe, and the water after backflushing flows into the external regulating pool, and the function is diversified. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the front view of the utility model;

[0019] Figure 2 It is the internal pipeline layout drawing of the utility model;

[0020] Figure 3 It is the external pipeline layout drawing of the utility model.

[0021] Wherein: 1, storage tank;2, reactor;3, clean water pool;4, packing area;5, lifting pump;6, supporting plate;7, air blower;8, aeration system;9, air pipe;10, circulating port;11, circulating pipe;12, first valve;13, water outlet;14, overflow;15, raw water make -up mouth;16, floating ball controller;17, water outlet pipe;18, second valve;19, backflushing pump;20, backflushing pipe;21, third valve;22, observation window;23, clean water pool inlet pipe;24, fourth valve;25, water inlet area. DETAILED DESCRIPTION

[0022] In order to deepen the understanding of the utility model, the utility model will be further described in the following combined with examples, and the embodiment is only used to explain the utility model, and does not constitute the limitation to the protection scope of the utility model.

[0023] Example one

[0024] According to Figure 1 、 2 , 3 shows, the embodiment proposes a sludge self-inoculation type biological membrane reactor, including reactor 2 and the storage tank 1 respectively arranged at the left and right sides of the reactor 2 clean water pool 3, the lower part in the reactor 2 is equipped with packing area 4, the bottom in the storage tank 1 is equipped with lifting pump 5, the reactor 2 inside the lower position of packing area 4 is equipped with supporting plate 6, the output of lifting pump 5 is connected with water inlet area 25 through connecting pipe, one side of the reactor 2 is equipped with air blower 7, the water inlet area in the reactor 2 inside the lower position of supporting plate 6 is equipped with aeration system 8, and the output of air blower 7 is connected with aeration system 8 through air pipe 9;

[0025] The reactor 2 is provided with a circulating port 10 at the middle position of the left side, and a circulating pipe 11 is connected to the circulating port 10, the lower end of the circulating pipe 11 is inserted into the top of the storage tank 1, and the circulating pipe 11 is provided with a first valve 12, the upper end of the right side of the reactor 2 is sequentially provided with a water outlet 13 and an overflow port 14 from bottom to top, and the water outlet 13 is used to be connected with the clean water pool 3. In use, the mixed solution of inoculated sludge and sewage is contained in the storage tank 1, when reaching the highest liquid level, the lifting pump 5 operates, at the same time, the air blower 7 supplies oxygen through the aeration system 8, the mixed solution uniformly passes through the filler area 4 through the inner apertures of the supporting plate 6, in this process, the second valve 18, the third valve 21 and the fourth valve 24 are closed, the first valve 12 is opened, a circulating path for the mixed solution is formed through the circulating pipe 11 and the storage tank 1, so that the activated sludge passes through the filler area 4 for many times, the continuous contact between the inoculated sludge and the biological filler can be formed, the contact time and the inoculation area are increased, the formation process of the biofilm is accelerated on the basis of providing external oxygen supply and nutrition conditions, the formation time is reduced and the attachment effect is optimized, and good inoculation effect is obtained in the inoculation process of the low carbon-nitrogen ratio domestic sewage. The stainless steel intercepting net is used to prevent the filler from overflowing in the reactor 2 above the water outlet 13 and below the reactor 2.

[0026] The upper end of the left side of the storage tank 1 is provided with a raw water supplementing port 15, one side of the top of the storage tank 1 is provided with a float ball controller 16, and the float ball of the float ball controller 16 extends to the inside of the storage tank 1, and the float ball controller 16 is electrically connected with the lifting pump 5. The water outlet 13 is connected with a water outlet pipe 17, and a second valve is arranged on the water outlet pipe 17. The inside of the clean water pool 3 is provided with a backwashing pump 19. One end of the water outlet pipe 17 extends to the inside of the clean water pool and is connected with the backwashing pump 19, and the water outlet pipe 17 is connected with the clean water pool 3 through the clean water pool water inlet pipe 23. The end of the water outlet pipe 17 away from the backwashing pump 19 is connected with a backwashing pipe 20, and a third valve 21 is arranged on the backwashing pipe 20. The lower end of the backwashing pipe 20 extends below the water inlet area 25. In use, the float ball control device identifies the liquid level, sets a start-stop point, stops the lifting pump 5 at a low liquid level, and starts the lifting pump 5 at a high liquid level. After inoculation is completed, the first valve 12 is closed, the raw water supplementing port 15 in front of the storage tank 1 is connected with continuous water inlet, the water is discharged into the reactor 2 through the apertures of the supporting plate 6, the third valve 21 is closed, the second valve 18 and the fourth valve 24 are opened, and the water is normally discharged to the clean water pool 3 through the water outlet 13 and the water outlet pipe 17. During this process, the backwashing pump 19 is in a closed state, and does not affect the normal flow of water. When the filler area 4 needs to be backwashed, the second valve 18 and the fourth valve 24 are closed, the third valve 21 is opened, and the backwashing pump 19 is started. The water in the clean water pool 3 is lifted to enter the bottom of the reactor 2 through the backwashing pipe 20, and the backwashed water flows into the external adjusting pool from the overflow port 14. The overflow port 14 is arranged at a position 200 mm below the top of the reactor (connected with the adjusting pool or the drainage pit). The water outlet 13 is arranged at a position 350 mm below the top of the reactor, and the water outlet 13 is lower than the overflow port 14.

[0027] Example two

[0028] According to Figure 1 、 2 , 3, the present embodiment provides a sludge self-inoculation type biological membrane reactor, which comprises a reactor 2 and storage tanks 1 and clean water pools 3 arranged at positions respectively on the left and right sides of the reactor 2. The inside of the lower part of the reactor 2 is provided with a filler area 4. The inside of the bottom of the storage tank 1 is provided with a lifting pump 5. The inside of the reactor 2 at a position below the supporting plate 6 is provided with a water inlet area 25. The output end of the lifting pump 5 is connected with the water inlet area 25 through a connecting pipe. One side of the reactor 2 is provided with a blower 7. The water inlet area 25 in the inside of the reactor 2 at a position below the supporting plate 6 is provided with an aeration system 8. A wind pipe 9 is connected between the output end of the blower 7 and the aeration system 8.

[0029] The reactor 2 left side of the intermediate position is provided with a circulating port 10, and the circulating port 10 is connected with a circulating pipe 11, the lower end of the circulating pipe 11 is inserted into the top of the storage tank 1, and the circulating pipe 11 is provided with a first valve 12, the reactor 2 right side upper end is sequentially provided with a water outlet 13 and an overflow port 14 from bottom to top, and the water outlet 13 is used for connecting with the clean water pool 3. In use, the storage tank 1 contains the mixed solution of inoculated sludge and sewage, when reaching the highest liquid level, the lifting pump 5 operates, at the same time, the air blower 7 supplies oxygen through the aeration system 8, the mixed solution uniformly passes through the filler zone 4 through the aperture on the supporting plate 6, in this process, the second valve 18, the third valve 21 and the fourth valve 24 are closed, the first valve 12 is opened, a circulating path for the mixture is formed through the circulating pipe 11 and the storage tank 1, so that the activated sludge passes through the filler zone 4 for many times, the continuous contact between the inoculated sludge and the biological filler is formed, the contact time and the inoculation area are increased, the biological membrane formation process is accelerated on the basis of providing external oxygen supply and nutrient conditions, the formation time is reduced and the attachment effect is optimized, and the inoculation effect is good in the inoculation process of the low carbon-nitrogen ratio domestic sewage. The reactor 2 inside above the filler zone 4 and below the water outlet 13 is prevented from overflowing by the stainless steel intercepting net.

[0030] The air pipe 9 is provided with a one-way valve, which prevents the oxygen flowing in the air pipe 9 and the liquid in the reactor 2 from flowing back; the water outlet pipe connected with the backwashing pump 19 in the clean water pool 3 is provided with a one-way valve, which prevents the water from flowing out from the backwashing pump when the water is normally supplied. The connecting pipe between the lifting pump 5 and the water inlet zone 25 is provided with a one-way valve, which prevents the backwashing from flowing back to the storage tank 1 through the connecting pipe when backwashing.

[0031] The overflow port 14 is used for connecting with the adjusting pool or the drainage pit. The backwashing pump 19 is started, the water in the clean water pool 3 is lifted to enter the bottom of the reactor 2 through the backwashing pipe 20, and the backwashed water flows into the external adjusting pool through the overflow port 14 and is used for other aspects.

[0032] The upper end of the front end of the reactor 2 is provided with an observation port (700mm*700mm), and the observation port is provided with an observation window 22. The observation port is used for observing, and the properties of the sludge before entering the circulating pipe 11 can be used to judge the treatment effect of the sludge and the biological membrane, and whether the sludge needs to be increased.

[0033] The sludge self-inoculation type biofilm reactor accommodates the mixed solution of inoculated sludge and sewage through the storage tank 1, when reaching the highest liquid level, the lifting pump 5 operates, at the same time, the air blower 7 supplies oxygen through the aeration system 8, the mixed solution uniformly passes through the filler area 4 through the inner apertures of the supporting plate 6, in the process, the second valve 18, the third valve 21 and the fourth valve 24 are closed, the first valve 12 is opened, a circulating path for the mixed solution is formed through the circulating pipe 11 and the storage tank 1, so that the activated sludge passes through the filler area 4 for multiple times, the contact time and the inoculation time are increased, at the same time, the properties of the sludge before entering the circulating pipe 11 can judge the treatment effect of the sludge and the biofilm, and whether the sludge needs to be increased, in summary, the continuous contact between the inoculated sludge and the biofilm is formed, the contact time and the inoculation area are increased, the formation process of the biofilm is accelerated on the basis of providing external oxygen supply and nutrient conditions, the formation time is reduced and the attachment effect is optimized, and the inoculation effect is good in the inoculation process of the low carbon-nitrogen ratio domestic sewage.

[0034] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A sludge self-inoculation type biofilm reactor comprising a reactor (2) and a storage tank (1) and a clean water pool (3) respectively arranged at left and right positions of the reactor (2), characterized in that: The lower part of the reactor (2) is provided with a filler zone (4), the bottom of the storage tank (1) is provided with a lifting pump (5), the lower part of the reactor is an inlet water zone (25), the lower part of the reactor (2) is provided with a supporting plate (6), the output end of the lifting pump (5) is connected with the inlet water zone (25) through a connecting pipe, one side of the reactor (2) is provided with a blower (7), the lower part of the reactor (2) is provided with an aeration system (8), the output end of the blower (7) is connected with the aeration system (8) through a wind pipe (9). The left side of the reactor (2) is provided with a circulating port (10), the circulating port (10) is connected with a circulating pipe (11), the lower end of the circulating pipe (11) is inserted into the top of the storage tank (1), and the circulating pipe (11) is provided with a first valve (12), the upper end of the right side of the reactor (2) is sequentially provided with a water outlet (13) and an overflow port (14) from bottom to top, and the water outlet (13) is used for being connected with a clean water tank (3).

2. The sludge self-inoculated biofilm reactor according to claim 1, characterized in that: The upper end of the left side of the storage tank (1) is provided with a raw water supplementing port (15), one side of the top of the storage tank (1) is provided with a float ball controller (16), the float ball of the float ball controller (16) extends into the inside of the storage tank (1), and the float ball controller (16) is electrically connected with the lifting pump (5).

3. The sludge self-inoculated biofilm reactor according to claim 2, characterized in that: The water outlet (13) is connected with a water outlet pipe (17), the water outlet pipe (17) is provided with a second valve (18), the inside of the clean water tank (3) is provided with a backwashing pump (19), one end of the water outlet pipe (17) extends into the inside of the clean water tank and is connected with the backwashing pump (19), the water outlet pipe (17) is connected with the clean water tank through a clean water tank water inlet pipe (23), and the clean water tank water inlet pipe (23) is provided with a fourth valve (24).

4. The self-inoculated biofilm reactor according to claim 3, characterized in that: The end, away from the backwashing pump (19), of the water outlet pipe (17) is connected with a backwashing pipe (20), the backwashing pipe (20) is provided with a third valve (21), and the lower end of the backwashing pipe (20) extends below the inlet water zone (25).

5. The self-inoculated biofilm reactor for sludge according to claim 1, characterized in that: The wind pipe (9) is provided with a one-way valve.

6. The self-inoculated biofilm reactor for sludge according to claim 3, characterized in that: The water outlet pipe (17) connected with the backwashing pump (19) in the clean water tank (3) is provided with a one-way valve.

7. The self-inoculated biofilm reactor of claim 1, wherein: The connecting pipe between the lifting pump (5) and the inlet water zone (25) is provided with a one-way valve.

8. The self-inoculated biofilm reactor of claim 1, wherein: The overflow port (14) is used for being connected with an adjusting tank or a drainage pit.

9. The self-inoculated biofilm reactor of claim 1, wherein: The upper part of the front end of the reactor (2) is provided with an observation port, and the observation port is provided with an observation window (22).

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