A basalt fiber gradient-filled biofilm treatment device for high-nitrogen wastewater

Abstract

This utility model relates to the field of wastewater treatment technology, and in particular to a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device. It includes a wastewater treatment unit casing, inside which are arranged an anaerobic tank, an anoxic tank, and an aerobic tank. Fixed limiting grooves are provided on the inner walls of the opposite sides of each of the anaerobic, anoxic, and aerobic tanks. Basalt fiber biofilms are arranged inside each of the anaerobic, anoxic, and aerobic tanks. This utility model, with its gradient distribution of basalt fiber biofilms with decreasing diameter and increasing density, can improve the adaptability of wastewater within each tank, further enhancing the treatment effect of the basalt fiber biofilm on wastewater. Simultaneously, compared to traditional uniformly filled biofilms, it can further increase the contact area between the basalt fiber biofilm and the wastewater, enabling the basalt fiber biofilm to treat different microorganisms in the wastewater.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device. Background Technology

[0002] With the rapid development of industry and the acceleration of urbanization, the discharge of high-nitrogen wastewater is increasing, posing a serious threat to the environment.

[0003] High-nitrogen wastewater treatment methods include physical, chemical, and biological methods. Among them, biological methods are widely used due to their advantages such as high treatment efficiency, low cost, and minimal secondary pollution. However, in the use of biological methods, the biofilm filling method in existing equipment is often uniform, which prevents the biofilm from facing the different water quality changes and microbial distribution during the wastewater treatment process. This results in insufficient contact between the wastewater and the biofilm, reducing treatment efficiency. At the same time, because the biofilm is located inside the treatment tank, its installation and replacement can only be done by personnel entering the treatment tank. Due to the limited space inside the treatment tank, personnel cannot effectively install and replace the biofilm inside the tank, further reducing the efficiency of biofilm installation and removal.

[0004] Therefore, we provide a basalt fiber gradient-filled biofilm treatment device for high-nitrogen wastewater. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device, thereby improving the wastewater treatment effect of the biofilm and facilitating the installation and removal of the biofilm.

[0006] In view of this, the present invention provides a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device, including a wastewater treatment unit casing. The wastewater treatment unit casing is provided with an anaerobic tank, an anoxic tank and an aerobic tank. Fixed limiting grooves are provided on the inner walls of the opposite sides of the anaerobic tank, the anoxic tank and the aerobic tank. Basalt fiber biofilm is provided inside the anaerobic tank, the anoxic tank and the aerobic tank. A sealing ring is provided on the outside of the basalt fiber biofilm. A snap-fit ​​block is provided on the outside of one end of the sealing ring. A fixing screw hole is provided on the outside of the snap-fit ​​block. A fixing bolt is screwed into the fixing screw hole.

[0007] Preferably, there are several fixed limiting grooves inside a treatment tank. The several fixed limiting grooves are linearly and equidistantly distributed on the same vertical plane. The several fixed limiting grooves are all located between the inlet and outlet of the treatment tank. Several insertion grooves are opened through one side surface of the sewage treatment machine casing. The several insertion grooves correspond to the fixed limiting grooves respectively.

[0008] Preferably, the basalt fiber biofilm is located between two horizontally distributed fixed limiting grooves. The diameter of the basalt fiber biofilm inside the treatment tank gradually decreases from the inlet to the outlet, while its density gradually increases. From the anaerobic tank to the anoxic tank and then to the aerobic tank, the diameter of the basalt fiber biofilm gradually decreases while its density gradually increases.

[0009] Preferably, the inner side of the sealing ring is fixedly connected to the outer surface of the basalt fiber biofilm, the sealing ring is inserted into the fixed limiting groove, the outer surface of the sealing ring located inside the fixed limiting groove is tightly fitted to the inner wall of the fixed limiting groove, one end of the sealing ring is tightly fitted to one side of the inner wall of the treatment pool, and the outer surface of the other end of the sealing ring is tightly fitted to the inner wall of the insertion groove.

[0010] Preferably, the end of the sealing ring near the insertion groove extends out of the outer wall of the sewage treatment machine housing, and two fixing posts are symmetrically arranged above the outer end of the sealing ring, and the fixing posts are fixedly connected to the outer surface of the sewage treatment machine housing.

[0011] Preferably, the fixing post is rotatably connected to the snap-fit ​​block, and one side surface of the snap-fit ​​block is in close contact with the outer end surface of the sealing ring.

[0012] Preferably, the fixing screw hole is opened on one side surface of the sewage treatment machine housing, the fixing screw hole and the fixing column are located on the same vertical plane, and the fixing bolt is threadedly screwed into the snap-fit ​​block.

[0013] Compared with the prior art, this utility model provides a basalt fiber gradient-filled biofilm treatment device for high-nitrogen wastewater, which has the following beneficial effects:

[0014] 1. This utility model, through the treatment of basalt fiber biofilm with gradient distribution, decreasing diameter and increasing density, can improve the adaptability of wastewater in various pools, further enhance the treatment effect of basalt fiber biofilm on wastewater. At the same time, compared with traditional uniformly filled biofilm, it can further increase the contact area between basalt fiber biofilm and wastewater, enabling basalt fiber biofilm to treat different microorganisms in wastewater.

[0015] 2. In this utility model, the fixing component is set on the outside of the sewage treatment machine casing by means of the snap-fit ​​block, fixing bolts and fixing screw holes. When the basalt fiber biofilm is replaced, it is not necessary to enter the sewage treatment machine casing to replace the basalt fiber biofilm, which is convenient to operate and further improves the replacement efficiency of basalt fiber biofilm. In addition, the fixing component is simple and convenient to operate, and can be quickly mastered. It is simple and convenient to operate, further improving the installation and removal efficiency of basalt fiber biofilm.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the basalt fiber biofilm fixation structure of a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the basalt fiber biofilm installation location structure of a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the internal structure of the wastewater treatment unit casing of a basalt fiber gradient-filled high-nitrogen wastewater biofilm treatment device proposed in this utility model.

[0021] In the diagram: 1. Wastewater treatment unit casing; 2. Anaerobic tank; 3. Anoxic tank; 4. Aerobic tank; 5. Fixed limiting groove; 6. Basalt fiber biofilm; 7. Sealing ring; 8. Clip block; 9. Fixing bolt; 10. Fixing screw hole; 11. Fixing column. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example: A basalt fiber gradient-filled biofilm treatment device for high-nitrogen wastewater, such as... Figures 1-4As shown, the system includes a sewage treatment unit casing 1. Inside the sewage treatment unit casing 1, there are anaerobic tanks 2, anoxic tanks 3, and aerobic tanks 4. Fixed limiting grooves 5 are provided on the inner walls of the opposite sides of the anaerobic tanks 2, anoxic tanks 3, and aerobic tanks 4. Basalt fiber biofilms 6 are installed inside the anaerobic tanks 2, anoxic tanks 3, and aerobic tanks 4. A sealing ring 7 is installed on the outside of the basalt fiber biofilm 6. A snap-fit ​​block 8 is installed on the outside of one end of the sealing ring 7. A fixing screw hole 10 is installed on the outside of the snap-fit ​​block 8. A fixing bolt 9 is screwed into the fixing screw hole 10.

[0025] There are several fixed limiting grooves 5 inside a treatment tank. The fixed limiting grooves 5 are linearly and equidistantly distributed on the same vertical plane. The fixed limiting grooves 5 are all located between the inlet and outlet of the treatment tank. Several insertion grooves are opened through one side surface of the sewage treatment machine casing 1. The insertion grooves correspond to the fixed limiting grooves 5 respectively.

[0026] The basalt fiber biofilm 6 is located between two horizontally distributed fixed limiting tanks 5. The diameter of the basalt fiber biofilm 6 inside the treatment tank gradually decreases from the inlet to the outlet, and the density gradually increases. From the anaerobic tank 2 to the anoxic tank 3 and then to the aerobic tank 4, the diameter of the basalt fiber biofilm 6 gradually decreases and the density gradually increases.

[0027] The inner side of the sealing ring 7 is fixedly connected to the outer surface of the basalt fiber biofilm 6. The sealing ring 7 is inserted into the fixed limiting groove 5. The outer surface of the sealing ring 7 located inside the fixed limiting groove 5 is tightly fitted with the inner wall of the fixed limiting groove 5. One end of the sealing ring 7 is tightly fitted with one side of the inner wall of the treatment tank, and the outer surface of the other end of the sealing ring 7 is tightly fitted with the inner wall of the insertion groove.

[0028] Since the wastewater treatment unit casing 1, anaerobic tank 2, anoxic tank 3, and aerobic tank 4 are existing devices, their working process is briefly described here. Wastewater enters the anaerobic tank 2 through the inlet on the wastewater treatment unit casing 1. The inlet of the wastewater treatment unit casing 1 is located on the upper half of one side of the inner wall of the anaerobic tank 2, and the outlet of the anaerobic tank 2 is located on the lower half of the other side of the inner wall. At this time, the outlet of the anaerobic tank 2 is also the inlet of the anoxic tank 3, and so on. Therefore, when the wastewater enters the anaerobic tank 2, it will first come into contact with the basalt fiber biofilm 6, which has a larger diameter and lower density and is distributed from top to bottom, for preliminary treatment. When the wastewater enters the anoxic tank 3 through the outlet of the anaerobic tank 2, it will come into contact with the basalt fiber biofilm 6, which has a larger diameter and lower density and is distributed from top to bottom, for preliminary treatment. The wastewater undergoes intermediate treatment through contact with a medium-density, bottom-to-top basalt fiber biofilm 6. When the wastewater enters the aerobic tank 4 through the outlet of the anoxic tank 3, it comes into contact with the smaller-diameter, higher-density, top-to-bottom basalt fiber biofilm 6 within the aerobic tank 4, receiving final treatment. This gradient distribution of the basalt fiber biofilm 6, with decreasing diameter and increasing density, improves the adaptability of the wastewater within each tank, further enhancing the treatment effect of the basalt fiber biofilm 6. Furthermore, compared to traditional uniformly filled biofilms, it increases the contact area between the basalt fiber biofilm 6 and the wastewater, enabling the basalt fiber biofilm 6 to treat different microorganisms in the wastewater.

[0029] like Figures 1-4 As shown, the end of the sealing ring 7 near the insertion groove extends out of the outer wall of the sewage treatment machine housing 1. Two fixing posts 11 are symmetrically arranged above the outer end of the sealing ring 7, and the fixing posts 11 are fixedly connected to the outer surface of the sewage treatment machine housing 1.

[0030] The fixed post 11 is rotatably connected to the snap-fit ​​block 8, and one side surface of the snap-fit ​​block 8 is tightly fitted with the outer end surface of the sealing ring 7.

[0031] The fixing screw hole 10 is opened on one side surface of the sewage treatment machine housing 1. The fixing screw hole 10 and the fixing column 11 are located on the same vertical plane. The fixing bolt 9 is threadedly connected to the snap-fit ​​block 8.

[0032] Before treating wastewater, the fixed limiting grooves 5 inside each treatment tank need to be installed. At this time, the fixing bolts 9 and the snap-fit ​​blocks 8 are connected, while the fixing bolts 9 and the fixing screw holes 10 are separated. Rotate the snap-fit ​​blocks 8 to both sides to ensure that they do not obstruct the insertion groove. Then, lift the basalt fiber biofilm 6 and the sealing ring 7 simultaneously using the handle. Align the end of the basalt fiber biofilm 6 away from the handle with the insertion groove and insert it. The sealing ring 7 guides the basalt fiber biofilm 6 along the guide of the fixed limiting groove 5 into the treatment tank until the basalt fiber biofilm 6 can no longer be pushed forward. Rotate one end of the snap-fit ​​block 8 towards the fixing screw hole 10 until the fixing bolts 9 and the fixing screw holes 10 are on the same horizontal plane. Tighten the fixing bolts 9 to connect and fix them to the fixing screw holes 10, thus limiting the position of the basalt fiber biofilm 6. When it is necessary to replace the basalt fiber biofilm 6... Simply remove the locking block 8 from the fixing bolt 9, then pull out the basalt fiber biofilm 6, and repeat the above operation for replacement. Because the outer surface of the basalt fiber biofilm 6 uses a sealing ring 7, sewage inside the sewage treatment unit housing 1 will not flow out during the operation of the basalt fiber biofilm 6. The basalt fiber biofilm 6 ensures the sealing of the sewage treatment unit housing 1. With the action of the locking block 8, fixing bolt 9, and fixing screw hole 10, the fixing component is positioned outside the sewage treatment unit housing 1. When replacing the basalt fiber biofilm 6, it is not necessary to enter the sewage treatment unit housing 1 to replace it, which is convenient and further improves the replacement efficiency of the basalt fiber biofilm 6. Furthermore, the operation of the fixing component is simple and convenient, allowing for quick and easy mastery, further improving the installation and removal efficiency of the basalt fiber biofilm 6.

[0033] 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 basalt fiber gradient filled high nitrogen wastewater biofilm treatment device, characterized in that, The system includes a sewage treatment unit housing (1), which contains an anaerobic tank (2), an anoxic tank (3), and an aerobic tank (4). The inner walls of the anaerobic tank (2), the anoxic tank (3), and the aerobic tank (4) on opposite sides are provided with fixed limiting grooves (5). The anaerobic tank (2), the anoxic tank (3), and the aerobic tank (4) are all provided with basalt fiber biofilms (6). The basalt fiber biofilms (6) are provided with sealing rings (7) on the outside. One end of the sealing ring (7) is provided with a snap-fit ​​block (8). The snap-fit ​​block (8) is provided with a fixing screw hole (10). The fixing screw hole (10) is threaded and connected with a fixing bolt (9).

2. The basalt fiber gradient filled high nitrogen wastewater biofilm treatment device according to claim 1, characterized in that, There are several fixed limiting grooves (5) inside a treatment tank. The several fixed limiting grooves (5) are linearly and equidistantly distributed on the same vertical plane. The several fixed limiting grooves (5) are all located between the inlet and outlet of the treatment tank. Several insertion grooves are opened through one side surface of the sewage treatment machine casing (1). The several insertion grooves correspond to the fixed limiting grooves (5) respectively. 3.The basalt fiber gradient filled high nitrogen wastewater bio-membrane treatment device according to claim 1, characterized in that, The basalt fiber biofilm (6) is located between two horizontally distributed fixed limiting grooves (5). The diameter of the basalt fiber biofilm (6) inside the treatment tank gradually decreases from the inlet to the outlet, and the density gradually increases. From the anaerobic tank (2) to the anoxic tank (3) and then to the aerobic tank (4), the diameter of the basalt fiber biofilm (6) gradually decreases and the density gradually increases.

4. The basalt fiber gradient filled high nitrogen wastewater biofilm treatment device according to claim 2, characterized in that, The inner side of the sealing ring (7) is fixedly connected to the outer surface of the basalt fiber biofilm (6). The sealing ring (7) is inserted into the fixed limiting groove (5). The outer surface of the sealing ring (7) inside the fixed limiting groove (5) is tightly fitted to the inner wall of the fixed limiting groove (5). One end of the sealing ring (7) is tightly fitted to the inner wall of one side of the treatment pool. The outer surface of the other end of the sealing ring (7) is tightly fitted to the inner wall of the insertion groove.

5. The basalt fiber gradient filled high nitrogen wastewater biofilm treatment device according to claim 1, characterized in that, The sealing ring (7) extends from one end near the insertion groove out of the outer wall of the sewage treatment machine housing (1). Two fixing posts (11) are symmetrically arranged above the outer end of the sealing ring (7), and the fixing posts (11) are fixedly connected to the outer surface of the sewage treatment machine housing (1).

6. The basalt fiber gradient filled high nitrogen wastewater biofilm treatment device according to claim 5, characterized in that, The fixing post (11) is rotatably connected to the snap-fit ​​block (8), and one side surface of the snap-fit ​​block (8) is tightly fitted with the outer end surface of the sealing ring (7).

7. The basalt fiber gradient filled high nitrogen wastewater biofilm treatment device according to claim 1, characterized in that, The fixing screw hole (10) is opened on one side surface of the sewage treatment machine housing (1). The fixing screw hole (10) and the fixing column (11) are located on the same vertical plane. The fixing bolt (9) is threadedly connected to the snap-fit ​​block (8).

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