A modular device for enhanced biological denitrification

Abstract

The utility model relates to the technical fields of sewage treatment device disclose a kind of modularization device of enhanced biological denitrification, including box, the top of the box is fixed with inlet pipe, the inner top wall of the box is equipped with guide hopper subassembly, the top of the guide hopper subassembly is communicated between inlet pipe, the inside of the box is equipped with multiple first denitrification layer, the inside of the box is equipped with multiple second denitrification layer, the first denitrification layer and second denitrification layer stagger distribution, the inner bottom wall of the box is fixed with receiving box, the corresponding position of the receiving box is installed in the lower side of the box with liquid pump body, the input end of the liquid pump body extends to the inside of the box and is communicated with receiving box. The modularization device of enhanced biological denitrification, by the cooperation between the first denitrification layer and second denitrification layer, can enhance the applicability and denitrification efficiency of equipment denitrification.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment devices, and in particular to a modular device for enhancing biological denitrification. Background Technology

[0002] The overall condition of my country's water environment continues to deteriorate, especially against the backdrop of rapid urbanization and industrialization, where environmental problems are becoming increasingly prominent. Treatment measures for domestic sewage and industrial wastewater are relatively lagging, leading to pollution of numerous urban water bodies and consequently causing eutrophication and the formation of black and odorous water bodies. As local governments continue to tighten wastewater discharge standards, traditional biological treatment processes are struggling to meet these standards, particularly in the removal of ammonia nitrogen and total nitrogen, where significant compliance challenges remain.

[0003] A search revealed an existing patent (publication number: CN222907684U) that discloses a modular device for enhancing biological denitrification. This invention can fix the packing material inside the box, avoiding uneven distribution of the packing material, clogging of pipes, and packing material leakage; it can enhance biological denitrification and is suitable for wastewater treatment equipment that needs to improve its biological denitrification capacity.

[0004] However, in the above scheme, denitrification using a single packing material may result in low denitrification efficiency or poor long-term operational stability. This is because a single packing material may not be able to continuously and effectively support the growth and metabolism of microorganisms under different operating conditions, leading to fluctuations in treatment effects. The selection of a single packing material may not be able to adequately cope with changes in water quality, such as water temperature, pH value, or ammonia nitrogen concentration, thereby affecting the overall denitrification efficiency. Utility Model Content

[0005] In view of the above-mentioned problem that the denitrification effect of a single packing material fluctuates greatly, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a modular device for enhancing biological denitrification, the purpose of which is to enhance the applicability and efficiency of the denitrification equipment by cooperating between the first denitrification layer and the second denitrification layer.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a modular device for enhancing biological denitrification, comprising a box, an inlet pipe fixed at the top of the box, a guide hopper assembly provided on the inner top wall of the box, the top of the guide hopper assembly communicating with the inlet pipe, multiple first denitrification layers provided inside the box, multiple sets of second denitrification layers provided inside the box, the first and second denitrification layers being alternately distributed, a receiving box fixed on the inner bottom wall of the box, and a liquid pump body installed at a position corresponding to the receiving box on one side of the box, the input end of the liquid pump body extending into the interior of the box and communicating with the receiving box; The second denitrification layer consists of two oppositely arranged guide plates.

[0008] As a preferred embodiment of the modular device for enhancing biological denitrification according to the present invention, the first denitrification layer includes a mounting frame, which is movably connected to the inside of the housing. A filter plate is fixed on the inner side of the mounting frame, and the filter holes of the filter plate are provided with a first packing material.

[0009] In a preferred embodiment of the modular device for enhancing biological denitrification described in this utility model, the first packing material is activated carbon.

[0010] As a preferred embodiment of the modular device for enhancing biological denitrification according to the present invention, the guide plate is in the shape of a right triangle, the inclined surface of the guide plate is arranged upward, and the inclination angle of the inclined surface of the guide plate is 10°~15°.

[0011] As a preferred embodiment of the modular device for enhancing biological denitrification described in this utility model, the inner sidewall of the guide plate is provided with a second packing material, the second packing material is curved, and the material of the second packing material is zeolite.

[0012] As a preferred embodiment of the modular device for enhancing biological denitrification described in this utility model, wherein: a locking groove is provided at the corresponding position of the inner side wall of the box and the mounting frame, and the mounting frame is slidably connected to the inner side of the locking groove.

[0013] As a preferred embodiment of the modular device for enhancing biological denitrification described in this utility model, the feed hopper assembly includes a discharge hopper, which is fixedly connected to the inner top wall of the box. A fixing block is fixed to the inner side of the end of the discharge hopper near the feed pipe. A connecting rod is fixed below the fixing block, and a conical platform is fixed to one end of the connecting rod.

[0014] As a preferred embodiment of the modular device for enhancing biological denitrification described in this utility model, the length of the fixing block is the same as the inner diameter of the end of the discharge hopper near the inlet pipe, and the width of the fixing block is one-third of its length.

[0015] As a preferred embodiment of the modular device for enhancing biological denitrification described in this utility model, a gap is formed between the discharge hopper and the conical platform, and the outer side of the conical platform has an inclination angle of 20°~35°.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model, through the cooperation between the first denitrification layer and the second denitrification layer, can enhance the applicability and efficiency of the denitrification equipment. The denitrification process can be divided into different stages. The first denitrification layer helps to initially remove nitrogen sources from the water, while the second denitrification layer can further reduce the nitrogen concentration, thereby achieving higher denitrification efficiency. At the same time, it can adapt to different water quality conditions and treatment needs, thus better adapting to changes in water quality.

[0017] 2. This utility model can uniformly guide sewage into the interior of the tank through the guide hopper assembly, where it is treated by the first and second denitrification layers. This ensures that the sewage is evenly distributed when entering the tank, avoiding sewage accumulation or uneven flow in certain areas. This ensures that each layer can treat sewage in a balanced manner, improving denitrification efficiency. At the same time, it reduces the impact force and uneven flow of sewage in the device, reducing the failures or performance degradation that may be caused by uneven water flow, and improving the stability and sustainable operation of the entire system. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the modular device for enhancing biological denitrification according to this utility model; Figure 2 This is a schematic diagram of the first denitrification layer structure of the modular device for enhancing biological denitrification according to this utility model; Figure 3 This is a schematic diagram of the second denitrification layer structure of the modular device for enhancing biological denitrification according to this utility model; Figure 4 This is a schematic diagram of the internal structure of the modular device for enhancing biological denitrification according to this utility model; Figure 5 This is a schematic diagram of the feed hopper assembly of the modular device for enhancing biological denitrification according to this utility model; Figure 6 This is a schematic diagram of the overall external structure of the modular device for enhancing biological denitrification according to this utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Housing; 101. Engaging groove; 2. Feed pipe; 3. Feed hopper assembly; 301. Discharge hopper; 302. Fixing block; 303. Connecting rod; 304. Conical platform; 4. First denitrification layer; 401. Mounting bracket; 402. Filter plate; 403. First packing; 5. Second denitrification layer; 501. Feed guide plate; 502. Second packing; 6. Receiving box; 7. Liquid pump body. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example 1 Reference Figures 1-4 This is the first embodiment of the present invention, providing a modular device for enhanced biological denitrification. This modular device includes a housing 1, with an inlet pipe 2 fixed to the top of the housing 1. A guide hopper assembly 3 is provided on the inner top wall of the housing 1, with its top connected to the inlet pipe 2. The fixed connection between the housing 1 and the inlet pipe 2 ensures uniform entry of wastewater into the device. The interconnected design of the guide hopper assembly 3 achieves initial diversion, reduces water flow impact, and avoids direct scouring of the packing layer. Multiple first denitrification layers 4 are provided inside the housing 1, and multiple sets of... The second denitrification layer 5, the first denitrification layer 4 and the second denitrification layer 5 are distributed alternately. Through the alternating layout of the first denitrification layer 4 and the second denitrification layer 5, the sewage retention time is extended, the contact efficiency between the biofilm and pollutants is enhanced, and the denitrification effect is improved. A collection box 6 is fixed on the inner bottom wall of the tank 1. A liquid pump body 7 is installed at the corresponding position of the collection box 6 on one side of the tank 1. The liquid after centralized treatment by the collection box 6 is efficiently discharged by the liquid pump body 7 to avoid bottom water accumulation and secondary pollution. The input end of the liquid pump body 7 extends into the interior of the tank 1 and communicates with the collection box 6. A second denitrification layer 5 consists of two oppositely arranged guide plates 501.

[0022] The first denitrification layer 4 includes a mounting frame 401, which is movably connected to the inside of the housing 1. A filter plate 402 is fixed on the inner side of the mounting frame 401, and the filter holes of the filter plate 402 are provided with a first packing material 403.

[0023] The first packing material 403 is activated carbon. The movable mounting bracket 401 facilitates disassembly and maintenance. The filter plate 402 supports the first packing material 403, realizing the dual functions of physical filtration and biodegradation. The high adsorption capacity of activated carbon effectively retains organic matter, providing a suitable environment for subsequent denitrifying bacteria.

[0024] The guide plate 501 is a right triangle with its inclined surface facing upwards. The inclined surface of the guide plate 501 has an inclination angle of 10° to 15°.

[0025] The inner wall of the guide plate 501 is provided with a second packing material 502. The second packing material 502 is curved and made of zeolite. The two right-angled triangular guide plates 501 arranged opposite each other form a V-shaped flow channel. The inclined surface design slows down the flow rate and promotes full contact between the sewage and the second packing material 502. The curved zeolite material 502 increases the specific surface area and enhances the ion exchange capacity, which is especially suitable for the adsorption and conversion of ammonia nitrogen.

[0026] The inner side wall of the housing 1 is provided with a locking groove 101 at the corresponding position of the mounting bracket 401. The mounting bracket 401 is slidably connected to the inner side of the locking groove 101. The locking groove 101 allows the mounting bracket 401 to be slidably disassembled, which facilitates the replacement of filler or the cleaning of blockages and improves the convenience of maintenance.

[0027] Example 2 Reference Figures 1-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the guide hopper assembly 3 includes a discharge hopper 301, which is fixedly connected to the inner top wall of the box 1. A fixing block 302 is fixed on the inner side of the end of the discharge hopper 301 near the inlet pipe 2. A connecting rod 303 is fixed below the fixing block 302. A conical platform 304 is fixed on one end of the connecting rod 303. The gap formed between the conical platform 304 and the discharge hopper 301 allows the sewage to fall in a dispersed manner, avoiding concentrated impact and evenly distributing to the packing layer.

[0028] The length of the fixing block 302 is the same as the inner diameter of the discharge hopper 301 near the feed pipe 2, and the width of the fixing block 302 is one-third of its length.

[0029] A gap is formed between the discharge hopper 301 and the conical platform 304, and the outer side of the conical platform 304 has an inclination angle of 20°~35°.

[0030] The remaining structure is the same as that in Example 1.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A modular device for enhancing biological nitrogen removal, comprising a housing (1), characterized in that: The top of the box (1) is fixed with a feed pipe (2), and the inner top wall of the box (1) is provided with a guide hopper assembly (3). The top of the guide hopper assembly (3) is connected to the feed pipe (2). The inside of the box (1) is provided with multiple first denitrification layers (4) and multiple sets of second denitrification layers (5). The first denitrification layers (4) and the second denitrification layers (5) are staggered. The inner bottom wall of the box (1) is fixed with a receiving box (6). A liquid pump body (7) is installed at the corresponding position of the receiving box (6) on one side of the box (1). The input end of the liquid pump body (7) extends into the inside of the box (1) and is connected to the receiving box (6). The second denitrification layer (5) consists of two oppositely arranged guide plates (501).

2. The modular device for enhancing biological denitrification according to claim 1, characterized in that: The first denitrification layer (4) includes a mounting frame (401), which is movably connected to the inside of the box (1). A filter plate (402) is fixed on the inner side of the mounting frame (401), and the filter holes of the filter plate (402) are provided with a first filler (403).

3. The modular device for enhancing biological denitrification according to claim 2, characterized in that: The first filler (403) is made of activated carbon.

4. The modular device for enhancing biological nitrogen removal according to claim 1, characterized in that: The guide plate (501) is a right triangle with its inclined surface facing upwards. The inclined surface of the guide plate (501) has an inclination angle of 10° to 15°.

5. The modular device for enhancing biological denitrification according to claim 4, characterized in that: The inner wall of the guide plate (501) is provided with a second filler (502), the second filler (502) is curved, and the material of the second filler (502) is zeolite.

6. The modular device for enhancing biological denitrification according to claim 2, characterized in that: The inner sidewall of the housing (1) is provided with a locking groove (101) at the corresponding position of the mounting bracket (401), and the mounting bracket (401) is slidably connected to the inner side of the locking groove (101).

7. The modular device for enhancing biological nitrogen removal according to claim 1, characterized in that: The feed hopper assembly (3) includes a discharge hopper (301), which is fixedly connected to the inner top wall of the box (1). A fixing block (302) is fixed on the inner side of the end of the discharge hopper (301) near the feed pipe (2). A connecting rod (303) is fixed below the fixing block (302), and a conical platform (304) is fixed at one end of the connecting rod (303).

8. The modular device for enhancing biological denitrification according to claim 7, characterized in that: The length of the fixing block (302) is the same as the inner diameter of the discharge hopper (301) near the feed pipe (2), and the width of the fixing block (302) is one-third of its length.

9. The modular device for enhancing biological denitrification according to claim 8, characterized in that: A gap is formed between the discharge hopper (301) and the conical platform (304), and the outer side of the conical platform (304) has an inclination angle of 20°~35°.

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