A mobile high-salinity wastewater biochemical treatment device

Abstract

The utility model discloses a mobile high salt wastewater biochemical treatment device, including movable container type shell, the shell is separated for the anoxic pool, the oxygen pool, the sedimentation tank and sludge reflux tank of intercommunication in proper order through the baffle in the inside, the anoxic pool and the oxygen pool are hung with the rope shape biological weaving filler in, and the filler both ends are fixed in the pool body top support, the sedimentation tank is installed with the inclined tube filler group in the inclination, the utility model discloses the treatment device inside is separated into the anoxic pool, the oxygen pool, the sedimentation tank and sludge reflux tank through the baffle, forms the complete treatment process. The rope shape biological weaving filler in the anoxic pool and the oxygen pool, its spiral winding and the polyester fiber rope structure with the surface have the fluff shape convex, can a large number of adhesion active sludge, improve the sludge concentration and volume load in the pool, and the inclined tube filler group of sedimentation tank utilizes the shallow pool sedimentation principle, increases the surface load, effectively realizes the mud water separation, promotes the processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of biochemical treatment technology for high-salinity wastewater, and in particular to a mobile biochemical treatment device for high-salinity wastewater. Background Technology

[0002] High-salinity wastewater typically refers to wastewater with a total salt content of 1% or higher, equivalent to more than 10,000 milligrams of salt per liter. This type of wastewater mainly originates from chemical plants and the extraction and processing of oil and natural gas. It contains not only large amounts of salt but also a variety of complex components such as oil, organic heavy metals, and radioactive substances. With the acceleration of industrial development, the discharge of high-salinity wastewater is increasing year by year, causing increasingly serious environmental pollution problems.

[0003] While biological methods can utilize microorganisms to degrade organic matter in the treatment of this type of wastewater, high salt concentrations can inhibit microbial activity. Physicochemical methods, on the other hand, face challenges such as high investment costs, expensive operating expenses, and difficulty in guaranteeing purification effectiveness. Therefore, finding an efficient and economical method to treat high-salinity wastewater has become a current research hotspot.

[0004] Mobile equipment provides chemical plants with a distributed solution that combines environmental and economic benefits through flexible process design, resource integration, and intelligent management and control. It is especially suitable for scenarios such as renovation of old plants, trial production of new projects, and environmental surprise inspections. Utility Model Content

[0005] In order to solve the problems mentioned in the background art, the present invention provides a mobile biochemical treatment device for high-salt wastewater.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A mobile biochemical treatment device for high-salt wastewater includes a movable container-type shell, the interior of which is divided by partitions into an anoxic tank, an aerobic tank, a sedimentation tank, and a sludge return tank connected in sequence. The anoxic and aerobic pools are equipped with rope-shaped biological braided packing material, with both ends of the packing material fixed to the support at the top of the pool. The sedimentation tank is equipped with inclined tube packing assembly, and the top is provided with a triangular water outlet weir and a clear water discharge trough, with the triangular water outlet weir and the clear water discharge trough connected. The bottom of the sludge return trough is equipped with a micro-perforated pipe, which is connected to a blower through an air pipe. A top return trough is located directly above the aerobic tank. One side of the top return trough is connected to the sludge return trough, and the other side of the top return trough is connected to the anoxic tank. The treatment device is equipped with only two blowers. The first blower is connected to the aeration pipe network of the aerobic tank, and the second blower is connected in parallel to the micro-perforated pipe of the sludge return trough and the cleaning air pipe of the sedimentation tank.

[0007] Preferably, the anoxic tank and the aerobic tank are separated by a first vertical partition, and a rectangular sewage channel is opened at the bottom of the partition; the aerobic tank and the sedimentation tank are connected by symmetrical triangular channels on both sides, and the inclination angle of the triangular channels is 45°-60°.

[0008] Preferably, the sludge return tank and the sedimentation tank are separated by a second vertical partition, and a sludge return channel is opened at the bottom of the second vertical partition, and the sludge return channel is directly opposite the air outlet of the micro-perforated pipe.

[0009] Preferably, the rope-like bio-woven filler is a spirally wound polyester fiber rope with fluffy protrusions on the surface of the rope, and the filler density is 30-50 bundles / cubic meter.

[0010] Preferably, the sidewall of the container-type shell is a double-layer carbon steel composite structure, with an inner layer coated with an epoxy coal tar pitch layer and an outer layer covered with a glass flake lining with a lining thickness ≥1mm.

[0011] Preferably, the container-type outer shell is provided with an inlet pipe, an outlet pipe and a sludge discharge pipe, the sludge discharge pipe extends to the bottom of the sedimentation tank, the inlet pipe extends to the top return trough, and the outlet pipe extends to the clean water discharge trough.

[0012] Compared with the prior art, the beneficial effects of this utility model are: The device is internally divided into anoxic, aerobic, sedimentation, and sludge return tanks by partitions, forming a complete treatment process. The rope-like biological braided packing material in the anoxic and aerobic tanks, with its spirally wound polyester fiber rope structure and fluffy protrusions on the surface, can adsorb a large amount of activated sludge, increasing the sludge concentration and volumetric loading rate within the tanks. The inclined tube packing group in the sedimentation tank utilizes the principle of shallow sedimentation to increase surface loading, effectively achieving sludge-water separation and improving treatment efficiency.

[0013] The entire treatment unit is powered by only two blowers, eliminating the need for water pumps. Aeration in the aerobic tank, sludge return, and sedimentation tank cleaning are all completed by the blowers. Sludge return is achieved through airlift, and the sludge return ratio can be controlled by adjusting the airlift volume. Pump-free operation significantly reduces the probability of equipment damage and the frequency of maintenance, thus reducing operating costs and maintenance workload. The container-type outer shell adopts a double-layer carbon steel composite structure, with an inner layer coated with an epoxy coal tar pitch layer and an outer layer covered with a glass flake lining with a thickness of ≥1mm, which effectively resists the corrosion of high-salt wastewater, extends the service life of the equipment, and ensures long-term stable operation. The device is a mobile containerized unit with features such as flexible process design, resource integration technology, and intelligent management and control. It is suitable for various scenarios, including the renovation of old chemical plants, trial production of new projects, and environmental surprise inspections. It provides a flexible and efficient solution for distributed treatment of high-salt wastewater and has high social value and application prospects. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a cross-sectional view of a mobile high-salinity wastewater biochemical treatment device according to the present invention; Figure 2 This is an isometric view of a mobile high-salinity wastewater biochemical treatment device according to the present invention. In the diagram: 1. Anoxic tank; 2. Aerobic tank; 3. Sedimentation tank; 4. Sludge return channel; 5. Rope-shaped biological woven packing material; 6. Inclined tube packing assembly; 7. Triangular effluent weir; 8. Clear water discharge channel; 9. First vertical baffle; 10. Rectangular sewage channel; 11. Triangular channel; 12. Second vertical baffle; 13. Sludge return channel; 14. Micro-perforated pipe; 15. Inlet pipe; 16. Outlet pipe; 17. Sludge discharge pipe; 18. Top return channel. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] Example

[0018] Reference Figure 1-2 A mobile high-salt wastewater biochemical treatment device includes a movable container-type shell, and the interior of the shell is divided by partitions into an anoxic tank 1, an aerobic tank 2, a sedimentation tank 3 and a sludge return tank 4 connected in sequence. The anoxic tank 1 and the aerobic tank 2 are suspended with rope-shaped biological woven packing material 5. The two ends of the packing material are fixed to the support at the top of the tank. The biological woven rope-shaped packing material 5 can attach a large amount of activated sludge, thereby increasing the sludge concentration in the tank and the volumetric load of the entire device. The sedimentation tank 3 is equipped with inclined tube packing group 6, and the top is provided with triangular water outlet weir 7 and clear water discharge trough 8. The triangular water outlet weir 7 is connected to the clear water discharge trough 8. The bottom of the sludge return trough 4 is equipped with a micro-perforated pipe 14, which is connected to the blower through an air pipe. The top return trough 18 is located directly above the aerobic tank 2. One side of the top return trough 18 is connected to the sludge return trough 4, and the other side of the top return trough 18 is connected to the anoxic tank 1. The treatment device is equipped with only two blowers. The first blower is connected to the aeration pipe network of the aerobic tank 2, and the second blower is connected in parallel to the micro perforated pipe 14 of the sludge return trough 4 and the cleaning air pipe of the sedimentation tank 3. The entire treatment unit is powered solely by two blowers, without the use of water pumps. The first blower provides oxygen to the aerobic tank 2. The agitation of the activated sludge in the aerobic tank 2 is driven by the aeration disturbance through the perforated pipes. The sludge return flow in the sludge return trough 4 is powered by the micro-perforated pipes 14, which lift the sludge upwards into the top return trough 18 via airlift, and then return it to the anoxic tank 1. It also provides an air source for the inclined tube cleaning system of the inclined tube packing group 6 in the sedimentation tank 3. The sludge return ratio can be adjusted by changing the airlift volume. The absence of water pumps reduces the probability of equipment damage and the frequency of maintenance.

[0019] The container-type shell is equipped with an inlet pipe 15, an outlet pipe 16 and a sludge discharge pipe 17. The sludge discharge pipe 17 extends to the bottom of the sedimentation tank 3, the inlet pipe 15 extends to the top return channel 18, and the outlet pipe 16 extends to the clear water discharge channel 8. The sludge return tank 4 and the sedimentation tank 3 are separated by a second vertical partition 12. A sludge return channel 13 is opened at the bottom of the second vertical partition 12, and the sludge return channel 13 is directly opposite the air outlet of the micro-perforated pipe 14. The anoxic tank 1 and the aerobic tank 2 are separated by a first vertical partition 9, and a rectangular sewage channel 10 is opened at the bottom of the partition; the aerobic tank 2 and the sedimentation tank 3 are connected by symmetrical triangular channels 11 on both sides, and the inclination angle of the triangular channels 11 is 45°-60°. High-salt wastewater is introduced into the top return trough 18 through the inlet pipe 15, where it mixes with the returned digestate and sludge before entering the anoxic tank 1. In the anoxic tank 1, the wastewater undergoes denitrification with the activated sludge, and then enters the aerobic tank 2 through a rectangular wastewater channel 10 at the bottom of the anoxic tank 1. In the aerobic tank 2, it undergoes aerobic oxidation and nitrification with the activated sludge, and then enters the bottom of the sedimentation tank 3 through triangular channels 11 on both sides. The activated sludge is separated from the clear water using the shallow sedimentation principle of the inclined tube packing group 6, increasing the surface load of the sedimentation tank. The supernatant is the final effluent (an inclined plate packing can also be used). The clear water flows upwards, overflowing over the triangular effluent weir 7 and into the clear water discharge trough 8, then flows out of the system through the effluent pipe 16. The activated sludge settles to the bottom of the sedimentation tank 3 and is returned to the top return trough 18 through the sludge return trough 4, where it mixes with the influent before entering the anoxic tank 1.

[0020] The rope-like biological braided packing material 5 is a spirally wound polyester fiber rope with fluffy protrusions on the surface of the rope. The packing density is 30-50 bundles / cubic meter. The side wall of the container-type shell is a double-layer carbon steel composite structure. The inner layer is coated with an epoxy coal tar pitch layer, and the outer layer is covered with a glass flake lining with a thickness of ≥1mm, which can effectively avoid the corrosion of high-salt wastewater.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile biochemical treatment device for high-salinity wastewater, characterized in that: It includes a movable container-type shell, the interior of which is divided by partitions into an anoxic tank (1), an aerobic tank (2), a sedimentation tank (3) and a sludge return tank (4) connected in sequence. The anoxic pool (1) and aerobic pool (2) are equipped with rope-shaped biological braided packing material (5), with both ends of the packing material fixed to the support at the top of the pool. The sedimentation tank (3) is equipped with inclined tube packing group (6) and a triangular outlet weir (7) and a clear water discharge trough (8) at the top. The triangular outlet weir (7) and the clear water discharge trough (8) are connected. The bottom of the sludge return trough (4) is provided with a micro-perforated pipe (14), which is connected to the blower through an air pipe. The top return trough (18) is provided directly above the aerobic tank (2). One side of the top return trough (18) is connected to the sludge return trough (4), and the other side of the top return trough (18) is connected to the anoxic tank (1). The treatment device is equipped with only two blowers. The first blower is connected to the aeration network of the aerobic tank (2), and the second blower is connected in parallel to the micro-perforated pipe (14) of the sludge return trough (4) and the cleaning air pipe of the sedimentation tank (3).

2. The mobile high-salinity wastewater biochemical treatment device according to claim 1, characterized in that: The anoxic tank (1) and the aerobic tank (2) are separated by a first vertical partition (9), and a rectangular sewage channel (10) is opened at the bottom of the partition; the aerobic tank (2) and the sedimentation tank (3) are connected by symmetrical triangular channels (11) on both sides, and the inclination angle of the triangular channels (11) is 45°-60°.

3. The mobile high-salinity wastewater biochemical treatment device according to claim 1, characterized in that: The sludge return trough (4) and the sedimentation tank (3) are separated by a second vertical partition (12). A sludge return channel (13) is opened at the bottom of the second vertical partition (12), and the sludge return channel (13) is directly opposite the air outlet of the micro-perforated pipe (14).

4. The mobile high-salinity wastewater biochemical treatment device according to claim 1, characterized in that: The rope-like bio-woven filler (5) is a spirally wound polyester fiber rope with fluffy protrusions on the surface of the rope and a filler density of 30-50 bundles / cubic meter.

5. A mobile high-salinity wastewater biochemical treatment device according to claim 1, characterized in that: The sidewalls of the container-type shell are double-layer carbon steel composite structures, with an inner layer coated with an epoxy coal tar pitch layer and an outer layer covered with a glass flake lining with a thickness of ≥1mm.

6. The mobile high-salinity wastewater biochemical treatment device according to claim 1, characterized in that: The container-type shell is equipped with an inlet pipe (15), an outlet pipe (16) and a sludge discharge pipe (17). The sludge discharge pipe (17) extends to the bottom of the sedimentation tank (3), the inlet pipe (15) extends to the top return trough (18), and the outlet pipe (16) extends to the clear water discharge trough (8).

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