Integrated intelligent anaerobic denitrification equipment

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to integrated intelligent anaerobic denitrification equipment which comprises an equipment main body, an aeration pipe and an inclined plate filler, a water inlet pipe is arranged at the top of one side of the equipment main body, and the equipment main body is connected with an external wastewater supply mechanism through the water inlet pipe; a backflow pipe is arranged at the bottom of the equipment body, a thermometer is arranged at the top of the equipment body, a dissolved oxygen meter is arranged on one side of the thermometer, an aeration pipe is arranged on one side in the equipment body, and an aeration disc is arranged at the bottom of the aeration pipe. By arranging the aeration disc, the aeration pipe, the inclined plate filler, the guide plate, the biological filler, the reflux pipe and the reflux pump, the equipment consists of three groups of areas, namely an aeration area, a settling area and an ammoxidation biological deoxidation area, and the equipment adopts multifunctional subareas to create an environment suitable for efficient growth of ammoxidation bacteria; the mass-propagated ammonia oxidizing bacteria can form biological cenobium, compared with the traditional process, the volume load is greatly improved, the denitrification efficiency is improved through a biological method, and meanwhile, the operation cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to integrated intelligent anaerobic denitrification equipment. Background Art

[0002] In the existing sewage treatment industry, nitrification and denitrification are often used for denitrification. Nitrification uses nitrate bacteria to oxidize ammonia nitrogen in wastewater into nitrite and nitrate. The nitrification process requires oxygen consumption; the denitrification process uses denitrifying bacteria to convert nitrate into nitrogen gas. Denitrifying bacteria is a heterotrophic microorganism that consumes a large amount of organic carbon source. Nitrification and denitrification biological treatment is also a biological process with high energy consumption. With the continuous process research and development, an anaerobic red bacteria has emerged that can directly reduce nitrite to nitrogen gas, which can reduce the input of oxygen and organic carbon sources. Anaerobic red bacteria is an autotrophic microorganism that does not need to obtain organic carbon sources from the outside. The amount of sludge discharged is greatly reduced relative to nitrification and denitrification, that is, the content of secondary pollutants is also reduced.

[0003] The prior art has the following defects or problems:

[0004] Existing anaerobic deoxygenation equipment mostly uses anaerobic red bacteria, which has relatively harsh process conditions and needs to be operated at a medium temperature of 35°C, and requires relatively high ammonia nitrogen and relatively low carbon nitrogen. Therefore, in actual use, this process has not been widely used.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides an integrated intelligent anaerobic denitrification device to solve the current problems.

[0007] To achieve the above object, the present invention provides the following technical solution: an integrated intelligent anaerobic denitrification device, comprising:

[0008] The equipment body is provided with a water inlet pipe at the top of one side of the equipment body, and the equipment body is connected to an external wastewater supply mechanism through the water inlet pipe;

[0009] A reflux pipe is provided at the bottom of the equipment body, and a reflux pump is provided on the reflux pipe;

[0010] A thermometer is arranged on the top of the equipment body, and a dissolved oxygen meter is arranged on one side of the thermometer;

[0011] An aeration pipe, wherein the aeration pipe is arranged at one side of the interior of the equipment body and an aeration plate is arranged at the bottom thereof;

[0012] Inclined plate filler, the inclined plate filler is arranged inside the equipment body and located on the other side of the aeration pipe, a baffle structure is arranged between the two, and a water outlet weir is arranged on one side of the inclined plate filler;

[0013] The guide plate is arranged inside the equipment body and located on one side of the water outlet weir. Two groups of the guide plates are provided to increase the water flow path. Fixing frames are provided on both sides of the guide plates, and biological fillers are provided on the fixing frames.

[0014] In some of the embodiments, the interior of the equipment body is divided into an aeration zone, a sedimentation zone and an ammonia oxidation biological deoxygenation zone. The interior of the ammonia oxidation biological deoxygenation zone of the equipment body is filled with ammonia oxidizing bacteria, which reduce nitrite ions in the wastewater into nitrogen gas.

[0015] In some embodiments, the reflux pipe is connected between the aeration zone and the reaction zone, and reflux control is achieved by a reflux pump.

[0016] In some of the embodiments, the inner wall of the device body is filled with a thermal insulation interlayer, and the thermal insulation interlayer is made of polystyrene foam.

[0017] In some of the embodiments, the aeration disks are provided in several groups and are arranged in pairs at the bottom end of the aeration pipe. Aeration micropores are equidistantly formed on the end surfaces of the aeration disks and are communicated with the aeration pipe.

[0018] In some embodiments, the fixing frame can be made of one of iron wire, steel wire and nylon wire.

[0019] In some of the embodiments, the biological filler is a multi-faceted spherical plastic structure, in which polyurethane sponge spheres are distributed.

[0020] Compared with the prior art, the present invention provides an integrated intelligent anaerobic denitrification device, which has the following beneficial effects:

[0021] The integrated intelligent anaerobic denitrification equipment is equipped with an aeration plate, an aeration pipe, an inclined plate filler, a guide plate, a biological filler, a reflux pipe and a reflux pump. The equipment consists of three groups of areas, namely an aeration area, a sedimentation area and an ammonia oxidation biological deoxygenation area. The equipment uses multifunctional partitions to create an environment suitable for the efficient growth of ammonia oxidizing bacteria. A large number of ammonia oxidizing bacteria can form biological bacterial clusters. Compared with traditional processes, the volume load is greatly improved, and the biological denitrification efficiency is improved while saving operating costs.

[0022] The equipment has high denitrification efficiency. The volume load of ammonia oxidizing bacteria denitrification is higher than that of denitrification denitrification. Therefore, for biological pools of the same volume, the denitrification efficiency of ammonia oxidizing bacteria is higher.

[0023] This process mainly uses ammonia oxidizing bacteria for denitrification. Ammonia oxidizing bacteria is an autotrophic microorganism that does not require an additional organic carbon source for growth, so it can achieve energy-saving and low-carbon effects. At the same time, the oxygen required in the aeration zone to oxidize into nitrite ions is lower than the oxygen required for traditional nitrification reactions, so the aeration volume can be reduced, which can effectively reduce operating costs.

[0024] In addition, because the nitrate bacteria and ammonia oxidizing bacteria in the reaction process are both autotrophic microorganisms, autotrophic microorganisms produce fewer metabolites than heterotrophic microorganisms, so the amount of sludge produced by biological metabolism is reduced, which reduces the generation of secondary pollution and also saves the cost of sludge disposal;

[0025] In addition, instruments are used to monitor the operating indicators within the equipment to achieve automated control. The operation process does not require dedicated operation and maintenance, reducing operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a top view of the overall structure of the present invention.

[0028] In the figure: 1. Equipment body; 2. Insulation interlayer; 3. Water inlet pipe; 4. Aeration plate; 5. Aeration pipe; 6. Inclined plate filler; 7. Water outlet weir; 8. Thermometer; 9. Dissolved oxygen meter; 10. Guide plate; 11. Fixed frame; 12. Biological filler; 13. Return pipe; 14. Return pump. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] See also Figure 1-2 In this implementation scheme: the integrated intelligent anaerobic denitrification equipment includes:

[0032] The equipment body 1 has a water inlet pipe 3 disposed on the top of one side of the equipment body 1, and the equipment body 1 is connected to an external wastewater supply mechanism through the water inlet pipe 3;

[0033] A reflux pipe 13 is provided at the bottom of the equipment body 1, and a reflux pump 14 is provided on the reflux pipe 13;

[0034] A thermometer 8 is provided on the top of the equipment body 1, and a dissolved oxygen meter 9 is provided on one side of the thermometer 8;

[0035] An aeration pipe 5, the aeration pipe 5 is arranged at one side of the inside of the equipment body 1, and an aeration plate 4 is arranged at the bottom thereof;

[0036] Inclined plate filler 6, which is arranged inside the equipment body 1 and located on the other side of the aeration pipe 5, with a baffle structure arranged between the two, and a water outlet weir 7 arranged on one side of the inclined plate filler 6;

[0037] The guide plate 10 is arranged inside the equipment body 1 and located on one side of the water outlet weir 7. Two groups of guide plates 10 are provided to increase the water flow path. Fixing frames 11 are provided on both sides of the guide plates, and biological fillers 12 are provided on the fixing frames 11.

[0038] It should be noted in this embodiment that:

[0039] The interior of the equipment body 1 is divided into an aeration zone, a sedimentation zone and an ammonia oxidation biological deoxygenation zone. The interior of the ammonia oxidation biological deoxygenation zone of the equipment body 1 is filled with ammonia oxidizing bacteria, which reduce nitrite ions in the wastewater into nitrogen gas.

[0040] The reflux pipe 13 is connected between the aeration zone and the reaction zone, and reflux control is achieved through a reflux pump 14 .

[0041] The inner wall of the equipment body 1 is filled with a heat-insulating interlayer 2, and the heat-insulating interlayer 2 is made of polystyrene foam.

[0042] Aeration discs 4 are provided in several groups, and are arranged in pairs at the bottom end of the aeration pipe 5 . Aeration micropores are equidistantly provided on the end faces of the aeration discs 4 , and are communicated with the aeration pipe 5 .

[0043] The fixing frame 11 can be selected from one of iron wire, steel wire and nylon wire.

[0044] The biological filler 12 is a multi-faceted spherical plastic structure, in which polyurethane sponge spheres are distributed.

[0045] The working principle and use process of the present invention are as follows: the equipment is composed of three groups of areas, namely, an aeration area, a sedimentation area and an ammonia oxidation biological deoxygenation area. The wastewater after anaerobic COD reduction enters the aeration area, and through the aeration pipe 5 and the aeration plate 4, the ammonia nitrogen in the wastewater reacts with the oxygen and energy generated by aeration under the action of nitrate oxidizing bacteria to convert into silver nitrite ions, and the concentration of silver nitrite ions in the water is calculated; when the wastewater enters the sedimentation area, the activated sludge in the aeration area can be effectively intercepted by the inclined plate filler 6, so that the equipment can effectively prevent the nitrate oxidizing bacteria from being lost to the reaction area. The ammonia oxidation biological deoxygenation zone prevents microorganisms from ammonia oxidation. The ammonia oxidation biological deoxygenation zone is equipped with biological fillers 12, which can reduce silver nitrite ions in the wastewater into nitrogen gas through ammonia oxidizing bacteria. The temperature of the wastewater from anaerobic treatment is usually 35 degrees Celsius, so the inner wall of the equipment is provided with a heat-insulating interlayer 2. The upper end of the ammonia oxidation biological deoxygenation zone is provided with a dissolved oxygen meter 9 and a thermometer 8, which can monitor the data of the wastewater in real time to control the best reaction environment. When the dissolved oxygen is too high, the growth of ammonia oxidizing bacteria will be inhibited, and the aeration volume at the front end needs to be controlled, and the pump reflux is turned on at the same time to make the operation in the best state;

[0046] The ammonia oxidation biological deoxygenation zone is designed with a guide plate 10, which increases the water flow path and forms a dynamic environment for the system through the action of water flow, thereby reducing sludge deposition.

[0047] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Integrated intelligent anaerobic denitrification equipment, characterized in that: include: An equipment body (1), wherein a water inlet pipe (3) is arranged at the top of one side of the equipment body (1), and the equipment body (1) is connected to an external wastewater supply mechanism via the water inlet pipe (3); A reflux pipe (13) is provided at the bottom of the equipment body (1), and a reflux pump (14) is provided on the reflux pipe (13); A thermometer (8) is arranged on the top of the equipment body (1), and a dissolved oxygen meter (9) is arranged on one side of the thermometer (8); An aeration pipe (5), wherein the aeration pipe (5) is arranged at one side of the interior of the equipment body (1), and an aeration plate (4) is arranged at the bottom thereof; An inclined plate filler (6), the inclined plate filler (6) being arranged inside the equipment body (1) and located on the other side of the aeration pipe (5), with a baffle structure arranged between the two, and a water outlet weir (7) being arranged on one side of the inclined plate filler (6); A guide plate (10) is arranged inside the equipment body (1) and located on one side of the water outlet weir (7). Two groups of the guide plates (10) are provided to increase the water flow path. Fixing frames (11) are provided on both sides of the guide plates. Biological fillers (12) are provided on the fixing frames (11).

2. The integrated intelligent anaerobic denitrification equipment according to claim 1 is characterized in that: The interior of the equipment body (1) is divided into an aeration zone, a sedimentation zone and an ammonia oxidation biological deoxygenation zone. The interior of the ammonia oxidation biological deoxygenation zone of the equipment body (1) is filled with ammonia oxidizing bacteria, which reduce nitrite ions in wastewater into nitrogen gas.

3. The integrated intelligent anaerobic denitrification equipment according to claim 2 is characterized in that: The reflux pipe (13) is connected between the aeration zone and the reaction zone, and reflux control is achieved through a reflux pump (14).

4. The integrated intelligent anaerobic denitrification equipment according to claim 1 is characterized in that: The inner wall of the device body (1) is filled with a heat-insulating interlayer (2), and the heat-insulating interlayer (2) is made of polystyrene foam.

5. The integrated intelligent anaerobic denitrification equipment according to claim 1 is characterized in that: The aeration discs (4) are provided in a plurality of groups and are arranged in pairs at the bottom end of the aeration pipe (5). The end surfaces of the aeration discs (4) are provided with aeration micropores at equal intervals and are connected to the aeration pipe (5).

6. The integrated intelligent anaerobic denitrification equipment according to claim 1 is characterized in that: The fixing frame (11) can be made of one of iron wire, steel wire and nylon wire.

7. The integrated intelligent anaerobic denitrification equipment according to claim 1 is characterized in that: The biological filler (12) is a multi-faceted spherical plastic structure, with polyurethane sponge spheres distributed inside.

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