CN212532420U - Modular aerobic tank device for sewage treatment - Google Patents

Abstract

The utility model discloses a modularized aerobic pool device for sewage treatment, belonging to the field of sewage treatment equipment, comprising a tank body, an aeration system, a first pipe, a second pipe, a third pipe and a sixth pipe; the aeration system comprises a pipe IV and a pipe V; a processing space is enclosed in the tank body; an outlet of the first pipe is communicated with the processing space, and a first blocking device is arranged on the outlet of the first pipe; an inlet of the second pipe is communicated with the processing space, and a second blocking device is arranged on the inlet of the second pipe; an inlet of the third pipe is communicated with the processing space, and a filter is arranged on the inlet of the third pipe; the outlet of the pipe six is communicated with the processing space; and the outlet of the pipe IV is positioned at the bottom of the treatment space, and the outlet of the pipe IV is communicated with a pipe V. The utility model discloses a good oxygen pond device of modularization for sewage treatment adopts modular structure, need not newly to build the structure as relying on, directly selects specification and dimension, and the installation is taken over and can be used, compact structure, convenient transportation.

Description

Modular aerobic tank device for sewage treatment

Technical Field

The utility model belongs to the field of sewage treatment equipment, in particular to a modularized aerobic tank device for sewage treatment.

Background

The aerobic tank purifies organic matters by an activated sludge method and a biofilm method. In an activated sludge system, organic pollutants in sewage are adsorbed on the surface of activated sludge through physical adsorption and biological adsorption in a short time after the sewage is contacted with the activated sludge. The organic pollutants adsorbed on the surface of the active sludge inhabiting a large amount of microorganisms enter the microbial cells under the catalytic action of the microbial permease. The organic pollutant taken into cell body is metabolized by microbe under the catalytic action of various enzymes to form CO₂And H₂Some of the inorganic substances such as O and energy are synthesized into new cells. In the biofilm method, an anaerobic layer and an aerobic layer are formed on the biofilm from inside to outside, and the degradation of organic matters is mainly carried out in the aerobic layer in the same process as that of the activated sludge method. The nitrogenous organic matter is decomposed and converted into ammoniacal nitrogen under the action of ammoniation bacteria in the aerobic pool, and the ammoniacal nitrogen is further converted into ammoniacal nitrogen under the action of nitrosobacteriaThe nitrite nitrogen is further converted into nitrate nitrogen under the action of nitrobacteria. The phosphorus-containing organic matter is decomposed into phosphate under the action of microorganisms, and after phosphate is released by the phosphorus-accumulating bacteria under anaerobic conditions, excessive phosphorus is absorbed in the aerobic tank, and then the purpose of removing phosphorus is achieved by discharging sludge.

Most of the existing aerobic tanks are structures constructed by using site topography, but the aerobic tanks have the problems of long construction period, inconvenient use and maintenance, incompact structure, poor dephosphorization effect and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned weak point provide an aerobic pond device of modularization for sewage treatment, the current good oxygen pond of settlement builds the cycle length, and it is inconvenient to use the maintenance, and the structure is not compact, and dephosphorization effect subalternation problem. In order to achieve the above object, the utility model provides a following technical scheme:

a modularized aerobic pool device for sewage treatment comprises a tank body 7, an aeration system, a first pipe 1, a second pipe 2, a third pipe 3 and a sixth pipe 6; the aeration system comprises a pipe four 4 and a pipe five 5; a processing space 8 is enclosed in the tank body 7; the outlet of the first pipe 1 is communicated with the processing space 8, and a first blocking device 9 is arranged on the outlet of the first pipe 1; the inlet of the second pipe 2 is communicated with the processing space 8, and a second blocking device 10 is arranged on the inlet of the second pipe 2; the inlet of the third pipe 3 is communicated with the processing space 8, and the inlet of the third pipe 3 is provided with a filter 11; the outlet of the tube six 6 opens into the treatment space 8; the outlet of the tube four 4 is positioned at the bottom of the processing space 8, and the outlet of the tube four 4 is communicated with a tube five 5. With the structure, the tank body 7 can be closed at the top or open at the top; the manufactured tank body 7 is directly transported to a sewage treatment site, an aerobic pool is prevented from being built on site, the construction period is saved, the maintenance is convenient, the structure is compact, a modular structure is adopted, a newly-built structure is not required to be used as a support, the specification and the size are directly selected, and the tank can be used after the connecting pipe is installed. The aeration system is used for increasing the oxygen content of the treatment space 8 and forming stirring to fully mix the muddy water and accelerate the reaction; the first pipe 1 can quickly communicate the anaerobic tank or the anoxic tank with the aerobic tank; first barrierThe device 9 has the function of intercepting large impurities and fillers, and prevents pipelines from being blocked and structures from being subsequently treated. The second pipe 2 can quickly communicate the aerobic tank with the sedimentation tank; the second barrier device 10 has the function of intercepting large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The third pipe 3 can quickly communicate the aerobic tank with the anoxic tank; a sixth pipe 6 can quickly communicate the dephosphorization dosing system with the aerobic tank; the fourth pipe 4 is communicated with the fan, the fifth pipe 5 is inflated, and the fifth pipe 5 is used for aeration at the water bottom; after anaerobic or anoxic treatment at the front end, the sewage enters a treatment space 8 after being filtered by a first separation device 9 through a first pipe 1; in the treatment space 8, organic pollutants in the sewage are adsorbed on the surface of the activated sludge through physical adsorption and biological adsorption within a short time after the sewage is contacted with the activated sludge. Organic pollutants adsorbed on the surface of the active sludge inhabiting a large number of microorganisms enter microbial cells under the catalysis of microbial permease, and then the microorganisms carry out metabolic reaction on the organic pollutants under the catalysis of various enzymes to form CO partially₂And H₂Some of the inorganic substances such as O and energy are synthesized into new cells. If the filler is arranged in the processing space 8, the filler is gradually attached with a growing biological film. In the biofilm method, an anaerobic layer and an aerobic layer are formed on the biofilm from inside to outside, and the degradation of organic matters is mainly carried out in the aerobic layer in the same process as that of the activated sludge method. The nitrogen-containing organic matters in the sewage are decomposed and converted into ammonia nitrogen under the action of ammoniation bacteria in an aerobic pool, the ammonia nitrogen is further oxidized into nitrite nitrogen under the action of nitrite bacteria, the nitrite nitrogen is further converted into nitrate nitrogen under the action of nitrate bacteria, and the nitrite nitrogen and the nitrate nitrogen are jointly called nitrate nitrogen. Nitrifying liquid containing nitrate nitrogen flows back to the anoxic tank at the front end through the pipe III 3, so that denitrifying bacteria in the anoxic tank can reduce the nitrate nitrogen into nitrogen and release the nitrogen into the atmosphere. A filter 11 is arranged at the inlet of the third pipe 3, so that impurities and fillers are prevented from blocking a pipeline and entering front-end equipment; the phosphorus-containing organic matters in the sewage are decomposed into phosphate under the action of microorganisms, and after phosphate is released by phosphorus accumulating bacteria under the anaerobic condition, the excessive phosphorus is absorbed in an aerobic pool, and then the purpose of removing phosphorus is achieved by discharging sludge. The dephosphorization effect of biological dephosphorization mainly depends on the discharge residueThe sludge age is short, the nitrifying bacteria generation time is long, the sludge age is long, and the requirements of the nitrifying process and the phosphorus removal process on the sludge age are contradictory, so the biological phosphorus removal effect is limited. For solving the poor problem of biological dephosphorization effect, the utility model discloses increased six 6 quick connections dephosphorization medicine systems in pipe, through throwing the chemical agent of throwing, made the phosphate in the sewage form insoluble compound, discharge system together with the excess sludge has improved the dephosphorization effect. The effluent treated in the aerobic tank passes through a second separation device 10 and then enters a subsequent sedimentation tank for further treatment through a pipe II 2. The materials of the tank body, the auxiliary pipelines and the accessories include but are not limited to stainless steel, carbon steel and weathering steel.

Furthermore, a plurality of perforated or microporous aeration discs 12 are arranged on the pipe five 5; the pipe five 5 is annular, branched or meshed; the installation mode of the microporous aeration disc 12 adopts a lifting mode or a mode of fixing the microporous aeration disc at the bottom of a tank. According to the structure, the fan charges air into the pipe four 4, and the air enters the pipe five 5 and then comes out of the perforated or microporous aeration disc 12 to enter the water bottom; according to actual needs, the perforated or microporous aeration disc 12 is selected for aeration; the fifth pipe 5 is annular, branched or meshed, so that the aeration coverage area is increased, and the aeration is more efficient. The perforated or microporous aeration disc 12 not only increases the aeration efficiency, but also plays a role in stirring, so that the muddy water is fully mixed, and the reaction is promoted.

Furthermore, a plurality of microporous aeration pipes are arranged on the pipe five 5; the installation mode of the microporous aeration pipe adopts a suspension chain type or a lifting type or a mode of being fixed at the bottom of the tank. According to the structure, the suspended chain type or the lifting type or the fixed type structure of the microporous aeration pipe is selected according to actual requirements. The microporous aeration pipe not only increases the aeration efficiency, but also plays a role in stirring, so that the muddy water is fully mixed, and the reaction is promoted. The microporous aeration pipe can be a part of pipe five 5.

Further, the first blocking device 9 and/or the second blocking device 10 are/is a three-way blocking device or a through blocking device. According to the structure, the three-way barrier or the straight-through barrier has the function of intercepting large impurities and fillers, and prevents pipelines from being blocked and structures from being subsequently treated. One end of the straight-through blocker is immersed in water and is provided with a plurality of small holes, the other end of the straight-through blocker is connected with a short pipe, and the short pipe is communicated with an upstream or downstream water pool.

Further, the inlet of the first pipe 1 is communicated with an anaerobic pool or an anoxic pool; the outlet of the second pipe 2 is communicated with a sedimentation tank. According to the structure, the first pipe 1 can quickly communicate the anaerobic tank or the anoxic tank with the aerobic tank; the second pipe 2 can quickly communicate the aerobic tank with the sedimentation tank.

Further, the pipe III 3 is a nitrifying liquid return pipe, and an outlet of the pipe III 3 is communicated with the anoxic tank; and the reflux mode of the pipe III 3 is an air stripping type or a water pump suction type. According to the structure, the nitrified liquid in the aerobic tank flows back to the anoxic tank for denitrification through an air stripping type or a water pump suction type.

Further, the number of the tubes three 3 is at least one. According to the structure, the return flow of the nitrified liquid is increased by the plurality of pipes 3.

Further, the tube four 4 is an air tube; the air pipe is communicated with the fan. According to the structure, the air pipe is vertically ventilated downwards.

Further, the pipe six 6 is a dephosphorization agent feeding pipe, and an inlet of the pipe six 6 is communicated with a dephosphorization agent feeding system. According to the structure, the dephosphorization agent feeding system feeds the dephosphorization agent into the aerobic tank through the dephosphorization agent feeding pipe, the dephosphorization agent is dissolved in the agent feeding barrel and can be pumped through the pump, the electromagnetic valve controls the opening and closing, and the metering pump or the flowmeter measures the amount.

Furthermore, the processing space 8 can be selectively provided with fillers to form an MBBR pool or a contact oxidation pool, or is not provided with fillers to form an activated sludge pool.

The utility model has the advantages that:

1. the utility model discloses need not to rely on native building structure, need not too much construction process, simple to operate is swift, can carry out the installation of lectotype fast, has practiced thrift the station construction period greatly. The cost is low, the requirement on the field is low, and the influence on the surrounding environment is less. In addition, the modularized design can also solve the problems of narrow roads and difficult transportation at more curves of various villages, thereby ensuring the feasibility of equipment transportation; meanwhile, the controllability of the quality of the equipment is ensured during the production in a factory.

2. The utility model discloses set up the pipe is thrown to dephosphorization medicament, the biological dephosphorization in coordination of chemical dephosphorization has strengthened the dephosphorization effect of system greatly, and the insoluble phosphate that forms simultaneously can not be once more anti-dissolve and get into the aquatic, leads to going out the water not up to standard.

3. The utility model discloses a direct separation ware has effectively intercepted the bold impurity in the sewage, and direct separation ware can also intercept the filler, prevents impurity and filler jam follow-up pipeline and equipment, avoids influencing sewage treatment system's smooth and easy operation.

4. The aeration system of the utility model can adopt one of a perforated aeration pipe, a micropore aeration disc and a micropore aeration pipe. The liquid lifting mode adopts a gas lifting mode or a water pump mode, and can be configured according to different conditions and requirements of stations, so that the applicability and the flexibility of the equipment are improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic top view of the present invention;

in the drawings: 1-tube one, 2-tube two, 3-tube three, 4-tube four, 5-tube five, 6-tube six, 7-tank, 8-processing space, 9-first blocking device, 10-second blocking device, 11-filter and 12-microporous aeration disc.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

The first embodiment is as follows:

see figures 1-2. A modularized aerobic pool device for sewage treatment comprises a tank body 7, an aeration system, a first pipe 1, a second pipe 2, a third pipe 3 and a sixth pipe 6; the aeration system comprises a pipe four 4 and a pipe five 5; a processing space 8 is enclosed in the tank body 7; the outlet of the first pipe 1 is communicated with the processing space 8, and a first blocking device 9 is arranged on the outlet of the first pipe 1; the inlet of the second pipe 2 is communicated with the processing space 8, and a second blocking device 10 is arranged on the inlet of the second pipe 2; the inlet of the third pipe 3 is communicated with the processing space 8, and the inlet of the third pipe 3 is provided with a filter 11;the outlet of the tube six 6 opens into the treatment space 8; the outlet of the tube four 4 is positioned at the bottom of the processing space 8, and the outlet of the tube four 4 is communicated with a tube five 5. With the structure, the tank body 7 can be closed at the top or open at the top; the manufactured tank body 7 is directly transported to a sewage treatment site, an aerobic pool is prevented from being built on site, the construction period is saved, the maintenance is convenient, the structure is compact, a modular structure is adopted, a newly-built structure is not required to be used as a support, the specification and the size are directly selected, and the tank can be used after the connecting pipe is installed. The aeration system is used for increasing the oxygen content of the treatment space 8 and forming stirring to fully mix the muddy water and accelerate the reaction; the first pipe 1 can quickly communicate the anaerobic tank or the anoxic tank with the aerobic tank; the first blocking device 9 has the function of blocking large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The second pipe 2 can quickly communicate the aerobic tank with the sedimentation tank; the second barrier device 10 has the function of intercepting large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The third pipe 3 can quickly communicate the aerobic tank with the anoxic tank; a sixth pipe 6 can quickly communicate the dephosphorization dosing system with the aerobic tank; the fourth pipe 4 is communicated with the fan, the fifth pipe 5 is inflated, and the fifth pipe 5 is used for aeration at the water bottom; after anaerobic or anoxic treatment at the front end, the sewage enters a treatment space 8 after being filtered by a first separation device 9 through a first pipe 1; in the treatment space 8, organic pollutants in the sewage are adsorbed on the surface of the activated sludge through physical adsorption and biological adsorption within a short time after the sewage is contacted with the activated sludge. Organic pollutants adsorbed on the surface of the active sludge inhabiting a large number of microorganisms enter microbial cells under the catalysis of microbial permease, and then the microorganisms carry out metabolic reaction on the organic pollutants under the catalysis of various enzymes to form CO partially₂And H₂Some of the inorganic substances such as O and energy are synthesized into new cells. If the filler is arranged in the processing space 8, the filler is gradually attached with a growing biological film. In the biofilm method, an anaerobic layer and an aerobic layer are formed on the biofilm from inside to outside, and the degradation of organic matters is mainly carried out in the aerobic layer in the same process as that of the activated sludge method. The nitrogen-containing organic matters in the sewage are decomposed and converted into ammonia nitrogen under the action of ammoniation bacteria in an aerobic pool, and the ammonia nitrogen is further converted into ammonia nitrogen under the action of nitrite bacteriaThe nitrite nitrogen is further converted into nitrate nitrogen under the action of nitrate bacteria, and the nitrite nitrogen and the nitrate nitrogen are collectively called nitrate nitrogen. Nitrifying liquid containing nitrate nitrogen flows back to the anoxic tank at the front end through the pipe III 3, so that denitrifying bacteria in the anoxic tank can reduce the nitrate nitrogen into nitrogen and release the nitrogen into the atmosphere. A filter 11 is arranged at the inlet of the third pipe 3, so that impurities and fillers are prevented from blocking a pipeline and entering front-end equipment; the phosphorus-containing organic matters in the sewage are decomposed into phosphate under the action of microorganisms, and after phosphate is released by phosphorus accumulating bacteria under the anaerobic condition, the excessive phosphorus is absorbed in an aerobic pool, and then the purpose of removing phosphorus is achieved by discharging sludge. The phosphorus removal effect of biological phosphorus removal mainly depends on discharging excess sludge, the sludge age is short, the generation time of nitrifying bacteria is long, the sludge age is long, and the requirements of the nitrification process and the phosphorus removal process on the sludge age are contradictory, so the biological phosphorus removal effect is limited. For solving the poor problem of biological dephosphorization effect, the utility model discloses increased six 6 quick connections dephosphorization medicine systems in pipe, through throwing the chemical agent of throwing, made the phosphate in the sewage form insoluble compound, discharge system together with the excess sludge has improved the dephosphorization effect. The effluent treated in the aerobic tank passes through a second separation device 10 and then enters a subsequent sedimentation tank for further treatment through a pipe II 2. The materials of the tank body, the auxiliary pipelines and the accessories include but are not limited to stainless steel, carbon steel and weathering steel.

Example two:

see figures 1-2. A modularized aerobic pool device for sewage treatment comprises a tank body 7, an aeration system, a first pipe 1, a second pipe 2, a third pipe 3 and a sixth pipe 6; the aeration system comprises a pipe four 4 and a pipe five 5; a processing space 8 is enclosed in the tank body 7; the outlet of the first pipe 1 is communicated with the processing space 8, and a first blocking device 9 is arranged on the outlet of the first pipe 1; the inlet of the second pipe 2 is communicated with the processing space 8, and a second blocking device 10 is arranged on the inlet of the second pipe 2; the inlet of the third pipe 3 is communicated with the processing space 8, and the inlet of the third pipe 3 is provided with a filter 11; the outlet of the tube six 6 opens into the treatment space 8; the outlet of the tube four 4 is positioned at the bottom of the processing space 8, and the outlet of the tube four 4 is communicated with a tube five 5. With the above structure, the tank body 7 can be closed or toppedThe part is open; the manufactured tank body 7 is directly transported to a sewage treatment site, an aerobic pool is prevented from being built on site, the construction period is saved, the maintenance is convenient, the structure is compact, a modular structure is adopted, a newly-built structure is not required to be used as a support, the specification and the size are directly selected, and the tank can be used after the connecting pipe is installed. The aeration system is used for increasing the oxygen content of the treatment space 8 and forming stirring to fully mix the muddy water and accelerate the reaction; the first pipe 1 can quickly communicate the anaerobic tank or the anoxic tank with the aerobic tank; the first blocking device 9 has the function of blocking large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The second pipe 2 can quickly communicate the aerobic tank with the sedimentation tank; the second barrier device 10 has the function of intercepting large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The third pipe 3 can quickly communicate the aerobic tank with the anoxic tank; a sixth pipe 6 can quickly communicate the dephosphorization dosing system with the aerobic tank; the fourth pipe 4 is communicated with the fan, the fifth pipe 5 is inflated, and the fifth pipe 5 is used for aeration at the water bottom; after anaerobic or anoxic treatment at the front end, the sewage enters a treatment space 8 after being filtered by a first separation device 9 through a first pipe 1; in the treatment space 8, organic pollutants in the sewage are adsorbed on the surface of the activated sludge through physical adsorption and biological adsorption within a short time after the sewage is contacted with the activated sludge. Organic pollutants adsorbed on the surface of the active sludge inhabiting a large number of microorganisms enter microbial cells under the catalysis of microbial permease, and then the microorganisms carry out metabolic reaction on the organic pollutants under the catalysis of various enzymes to form CO partially₂And H₂Some of the inorganic substances such as O and energy are synthesized into new cells. If the filler is arranged in the processing space 8, the filler is gradually attached with a growing biological film. In the biofilm method, an anaerobic layer and an aerobic layer are formed on the biofilm from inside to outside, and the degradation of organic matters is mainly carried out in the aerobic layer in the same process as that of the activated sludge method. The nitrogen-containing organic matters in the sewage are decomposed and converted into ammonia nitrogen under the action of ammoniation bacteria in an aerobic pool, the ammonia nitrogen is further oxidized into nitrite nitrogen under the action of nitrite bacteria, the nitrite nitrogen is further converted into nitrate nitrogen under the action of nitrate bacteria, and the nitrite nitrogen and the nitrate nitrogen are jointly called nitrate nitrogen. The nitrifying liquid containing nitrate nitrogen flows back to the front end through a pipe III 3The anoxic pond is convenient for denitrifying bacteria in the anoxic pond to reduce nitrate nitrogen into nitrogen and release the nitrogen to the atmosphere. A filter 11 is arranged at the inlet of the third pipe 3, so that impurities and fillers are prevented from blocking a pipeline and entering front-end equipment; the phosphorus-containing organic matters in the sewage are decomposed into phosphate under the action of microorganisms, and after phosphate is released by phosphorus accumulating bacteria under the anaerobic condition, the excessive phosphorus is absorbed in an aerobic pool, and then the purpose of removing phosphorus is achieved by discharging sludge. The phosphorus removal effect of biological phosphorus removal mainly depends on discharging excess sludge, the sludge age is short, the generation time of nitrifying bacteria is long, the sludge age is long, and the requirements of the nitrification process and the phosphorus removal process on the sludge age are contradictory, so the biological phosphorus removal effect is limited. For solving the poor problem of biological dephosphorization effect, the utility model discloses increased six 6 quick connections dephosphorization medicine systems in pipe, through throwing the chemical agent of throwing, made the phosphate in the sewage form insoluble compound, discharge system together with the excess sludge has improved the dephosphorization effect. The effluent treated in the aerobic tank passes through a second separation device 10 and then enters a subsequent sedimentation tank for further treatment through a pipe II 2. The materials of the tank body, the auxiliary pipelines and the accessories include but are not limited to stainless steel, carbon steel and weathering steel.

The pipe five 5 is provided with a plurality of perforated or microporous aeration discs 12; the pipe five 5 is annular, branched or meshed; the installation mode of the microporous aeration disc 12 adopts a lifting mode or a mode of fixing the microporous aeration disc at the bottom of a tank. According to the structure, the fan charges air into the pipe four 4, and the air enters the pipe five 5 and then comes out of the perforated or microporous aeration disc 12 to enter the water bottom; according to actual needs, the perforated or microporous aeration disc 12 is selected for aeration; the fifth pipe 5 is annular, branched or meshed, so that the aeration coverage area is increased, and the aeration is more efficient. The perforated or microporous aeration disc 12 not only increases the aeration efficiency, but also plays a role in stirring, so that the muddy water is fully mixed, and the reaction is promoted.

Or the pipe five 5 is provided with a plurality of microporous aeration pipes; the installation mode of the microporous aeration pipe adopts a suspension chain type or a lifting type or a mode of being fixed at the bottom of the tank. According to the structure, the suspended chain type or the lifting type or the fixed type structure of the microporous aeration pipe is selected according to actual requirements. The microporous aeration pipe not only increases the aeration efficiency, but also plays a role in stirring, so that the muddy water is fully mixed, and the reaction is promoted. The microporous aeration pipe can be a part of pipe five 5.

Example three:

see figures 1-2. A modularized aerobic pool device for sewage treatment comprises a tank body 7, an aeration system, a first pipe 1, a second pipe 2, a third pipe 3 and a sixth pipe 6; the aeration system comprises a pipe four 4 and a pipe five 5; a processing space 8 is enclosed in the tank body 7; the outlet of the first pipe 1 is communicated with the processing space 8, and a first blocking device 9 is arranged on the outlet of the first pipe 1; the inlet of the second pipe 2 is communicated with the processing space 8, and a second blocking device 10 is arranged on the inlet of the second pipe 2; the inlet of the third pipe 3 is communicated with the processing space 8, and the inlet of the third pipe 3 is provided with a filter 11; the outlet of the tube six 6 opens into the treatment space 8; the outlet of the tube four 4 is positioned at the bottom of the processing space 8, and the outlet of the tube four 4 is communicated with a tube five 5. With the structure, the tank body 7 can be closed at the top or open at the top; the manufactured tank body 7 is directly transported to a sewage treatment site, an aerobic pool is prevented from being built on site, the construction period is saved, the maintenance is convenient, the structure is compact, a modular structure is adopted, a newly-built structure is not required to be used as a support, the specification and the size are directly selected, and the tank can be used after the connecting pipe is installed. The aeration system is used for increasing the oxygen content of the treatment space 8 and forming stirring to fully mix the muddy water and accelerate the reaction; the first pipe 1 can quickly communicate the anaerobic tank or the anoxic tank with the aerobic tank; the first blocking device 9 has the function of blocking large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The second pipe 2 can quickly communicate the aerobic tank with the sedimentation tank; the second barrier device 10 has the function of intercepting large impurities and fillers, and prevents pipelines and subsequent treatment structures from being blocked. The third pipe 3 can quickly communicate the aerobic tank with the anoxic tank; a sixth pipe 6 can quickly communicate the dephosphorization dosing system with the aerobic tank; the fourth pipe 4 is communicated with the fan, the fifth pipe 5 is inflated, and the fifth pipe 5 is used for aeration at the water bottom; after anaerobic or anoxic treatment at the front end, the sewage enters a treatment space 8 after being filtered by a first separation device 9 through a first pipe 1; in the treatment space 8, organic pollutants in the sewage are adsorbed on the surface of the activated sludge through physical adsorption and biological adsorption in a short time after the sewage is contacted with the activated sludgeAnd (5) kneading. Organic pollutants adsorbed on the surface of the active sludge inhabiting a large number of microorganisms enter microbial cells under the catalysis of microbial permease, and then the microorganisms carry out metabolic reaction on the organic pollutants under the catalysis of various enzymes to form CO partially₂And H₂Some of the inorganic substances such as O and energy are synthesized into new cells. If the filler is arranged in the processing space 8, the filler is gradually attached with a growing biological film. In the biofilm method, an anaerobic layer and an aerobic layer are formed on the biofilm from inside to outside, and the degradation of organic matters is mainly carried out in the aerobic layer in the same process as that of the activated sludge method. The nitrogen-containing organic matters in the sewage are decomposed and converted into ammonia nitrogen under the action of ammoniation bacteria in an aerobic pool, the ammonia nitrogen is further oxidized into nitrite nitrogen under the action of nitrite bacteria, the nitrite nitrogen is further converted into nitrate nitrogen under the action of nitrate bacteria, and the nitrite nitrogen and the nitrate nitrogen are jointly called nitrate nitrogen. Nitrifying liquid containing nitrate nitrogen flows back to the anoxic tank at the front end through the pipe III 3, so that denitrifying bacteria in the anoxic tank can reduce the nitrate nitrogen into nitrogen and release the nitrogen into the atmosphere. A filter 11 is arranged at the inlet of the third pipe 3, so that impurities and fillers are prevented from blocking a pipeline and entering front-end equipment; the phosphorus-containing organic matters in the sewage are decomposed into phosphate under the action of microorganisms, and after phosphate is released by phosphorus accumulating bacteria under the anaerobic condition, the excessive phosphorus is absorbed in an aerobic pool, and then the purpose of removing phosphorus is achieved by discharging sludge. The phosphorus removal effect of biological phosphorus removal mainly depends on discharging excess sludge, the sludge age is short, the generation time of nitrifying bacteria is long, the sludge age is long, and the requirements of the nitrification process and the phosphorus removal process on the sludge age are contradictory, so the biological phosphorus removal effect is limited. For solving the poor problem of biological dephosphorization effect, the utility model discloses increased six 6 quick connections dephosphorization medicine systems in pipe, through throwing the chemical agent of throwing, made the phosphate in the sewage form insoluble compound, discharge system together with the excess sludge has improved the dephosphorization effect. The effluent treated in the aerobic tank passes through a second separation device 10 and then enters a subsequent sedimentation tank for further treatment through a pipe II 2. The materials of the tank body, the auxiliary pipelines and the accessories include but are not limited to stainless steel, carbon steel and weathering steel.

The pipe five 5 is provided with a plurality of perforated or microporous aeration discs 12; the pipe five 5 is annular, branched or meshed; the installation mode of the microporous aeration disc 12 adopts a lifting mode or a mode of fixing the microporous aeration disc at the bottom of a tank. According to the structure, the fan charges air into the pipe four 4, and the air enters the pipe five 5 and then comes out of the perforated or microporous aeration disc 12 to enter the water bottom; according to actual needs, the perforated or microporous aeration disc 12 is selected for aeration; the fifth pipe 5 is annular, branched or meshed, so that the aeration coverage area is increased, and the aeration is more efficient. The perforated or microporous aeration disc 12 not only increases the aeration efficiency, but also plays a role in stirring, so that the muddy water is fully mixed, and the reaction is promoted.

Or the pipe five 5 is provided with a plurality of microporous aeration pipes; the installation mode of the microporous aeration pipe adopts a suspension chain type or a lifting type or a mode of being fixed at the bottom of the tank. According to the structure, the suspended chain type or the lifting type or the fixed type structure of the microporous aeration pipe is selected according to actual requirements. The microporous aeration pipe not only increases the aeration efficiency, but also plays a role in stirring, so that the muddy water is fully mixed, and the reaction is promoted. The microporous aeration pipe can be a part of pipe five 5.

The first blocking device 9 and/or the second blocking device 10 is a three-way blocking device or a through blocking device. According to the structure, the three-way barrier or the straight-through barrier has the function of intercepting large impurities and fillers, and prevents pipelines from being blocked and structures from being subsequently treated. One end of the straight-through blocker is immersed in water and is provided with a plurality of small holes, the other end of the straight-through blocker is connected with a short pipe, and the short pipe is communicated with an upstream or downstream water pool.

An inlet of the first pipe 1 is communicated with an anaerobic tank or an anoxic tank; the outlet of the second pipe 2 is communicated with a sedimentation tank. According to the structure, the first pipe 1 can quickly communicate the anaerobic tank or the anoxic tank with the aerobic tank; the second pipe 2 can quickly communicate the aerobic tank with the sedimentation tank.

The third pipe 3 is a nitrifying liquid return pipe, and an outlet of the third pipe 3 is communicated with the anoxic tank; and the reflux mode of the pipe III 3 is an air stripping type or a water pump suction type. According to the structure, the nitrified liquid in the aerobic tank flows back to the anoxic tank for denitrification through an air stripping type or a water pump suction type.

The number of the tubes three 3 is at least one. According to the structure, the return flow of the nitrified liquid is increased by the plurality of pipes 3.

The fourth pipe 4 is an air pipe; the air pipe is communicated with the fan. According to the structure, the air pipe is vertically ventilated downwards.

And the pipe six 6 is a dephosphorization agent feeding pipe, and the inlet of the pipe six 6 is communicated with a dephosphorization agent feeding system. According to the structure, the dephosphorization agent feeding system feeds the dephosphorization agent into the aerobic tank through the dephosphorization agent feeding pipe, the dephosphorization agent is dissolved in the agent feeding barrel and can be pumped through the pump, the electromagnetic valve controls the opening and closing, and the metering pump or the flowmeter measures the amount.

The treatment space 8 can be selectively provided with fillers to form an MBBR pool or a contact oxidation pool, or an activated sludge pool is formed without fillers.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (10)

1. The utility model provides an aerobic pond device of modularization for sewage treatment which characterized in that: comprises a tank body (7), an aeration system, a first pipe (1), a second pipe (2), a third pipe (3) and a sixth pipe (6); the aeration system comprises a pipe four (4) and a pipe five (5); a processing space (8) is enclosed in the tank body (7); the outlet of the first pipe (1) is communicated with the processing space (8), and a first blocking device (9) is arranged on the outlet of the first pipe (1); the inlet of the second pipe (2) is communicated with the processing space (8), and a second blocking device (10) is arranged on the inlet of the second pipe (2); the inlet of the third pipe (3) is communicated with the processing space (8), and the inlet of the third pipe (3) is provided with a filter (11); the outlet of the tube six (6) opens into the treatment space (8); the outlet of the pipe four (4) is positioned at the bottom of the processing space (8), and the outlet of the pipe four (4) is communicated with a pipe five (5).

2. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: a plurality of perforated or microporous aeration discs (12) are arranged on the pipe five (5); the pipe five (5) is annular, branched or meshed; the installation mode of the microporous aeration disc (12) adopts a lifting mode or a mode of being fixed at the bottom of the tank.

3. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: a plurality of microporous aeration pipes are arranged on the pipe five (5); the installation mode of the microporous aeration pipe adopts a suspension chain type or a lifting type or a mode of being fixed at the bottom of the tank.

4. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: the first blocking device (9) and/or the second blocking device (10) is a three-way blocking device or a straight-through blocking device.

5. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: the inlet of the first pipe (1) is communicated with an anaerobic pool or an anoxic pool; and the outlet of the second pipe (2) is communicated with the sedimentation tank.

6. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: the third pipe (3) is a nitrifying liquid return pipe, and an outlet of the third pipe (3) is communicated with the anoxic tank; and the backflow mode of the pipe III (3) is an air stripping type or a water pump suction type.

7. The modular aerobic tank installation for the treatment of wastewater according to claim 1 or 6, wherein: the number of the third pipe (3) is at least one.

8. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: the fourth pipe (4) is an air pipe; the air pipe is communicated with the fan.

9. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: and the pipe six (6) is a dephosphorization agent feeding pipe, and the inlet of the pipe six (6) is communicated with a dephosphorization agent feeding system.

10. The modular aerobic tank installation for wastewater treatment according to claim 1, wherein: the treatment space (8) can be selectively provided with fillers to form an MBBR pool or a contact oxidation pool, or is not provided with fillers to form an activated sludge pool.

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