Device for removing nitrogen and phosphorus from wastewater

Abstract

The utility model discloses a wastewater nitrogen and phosphorus removal device, relates to the technical field of wastewater treatment, and solves the technical problems that the conventional wastewater nitrogen and phosphorus removal device has certain limitation on wastewater treatment effect and is difficult to effectively deal with diversified water quality conditions and wastewater with different concentrations, so that the overall treatment efficiency is reduced. Comprising a treatment tank; the treatment tank is divided into a shell I and a shell II, and an output guide pipe is arranged on the bottom surface of the shell II; the purification structure is assembled in the treatment tank, and the purification structure comprises an assembly seat and fixed frame bodies arranged on the surface and the bottom surface of the assembly seat; according to the utility model, the purification system is elaborately designed in the treatment tank, and the system integrates the reverse osmosis membrane and the activated carbon adsorption filter screen, so that the combined strategy obviously enhances the wastewater treatment efficiency, realizes the deep purification of wastewater, greatly improves the effluent quality, and greatly reduces the burden for the subsequent treatment flow.

Description

Technical Field

[0001] The utility model belongs to the technical field of wastewater treatment, in particular to a device for denitrification and dephosphorization of wastewater. Background Art

[0002] Wastewater denitrification and phosphorus removal are crucial steps in wastewater treatment, aiming to reduce nitrogen and phosphorus content in wastewater to prevent eutrophication and protect the aquatic environment. Nitrogen and phosphorus in wastewater primarily originate from domestic sewage, industrial wastewater, and agricultural drainage. Excessive discharge of these elements into water bodies can promote the proliferation of algae and other aquatic plants, deplete dissolved oxygen, degrade water quality, and impact the balance of aquatic ecosystems and human health.

[0003] Currently, despite the availability of a variety of technical approaches for nitrogen and phosphorus removal in wastewater treatment, encompassing biological, chemical, and physical methods, as well as their combined applications, the use of integrated approaches to treat wastewater faces challenges. Specifically, physical methods, due to their limitations in wastewater treatment effectiveness, often struggle to effectively address diverse water quality conditions and wastewater concentrations. This directly impacts overall treatment efficiency and limits the applicability of integrated approaches to a wider range of wastewater treatment scenarios. Therefore, in response to these challenges, we designed a device for nitrogen and phosphorus removal from wastewater. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a wastewater denitrification and phosphorus removal device, which solves the technical problem that existing wastewater denitrification and phosphorus removal devices have certain limitations in wastewater treatment effects, are unable to effectively cope with diverse water quality conditions and wastewater of different concentrations, and thus reduce overall treatment efficiency.

[0005] To achieve the above-mentioned object, according to an embodiment of the first aspect of the present utility model, a device for denitrification and dephosphorization of wastewater is provided, comprising a treatment tank;

[0006] The processing tank is divided into a shell body 1 and a shell body 2, and the bottom surface of the shell body 2 is provided with an output conduit;

[0007] The purification structure is assembled in the treatment tank. The purification structure includes an assembly seat, a fixed frame arranged on the surface and bottom of the assembly seat, and a reverse osmosis device and an activated carbon adsorption filter cartridge respectively arranged in each fixed frame. A pair of fixed screws are connected through each of the fixed frames, and a chuck is connected to the end of each fixed screw.

[0008] A further improvement is that a pair of symmetrical mounting seats are provided on the outside of the top surface port of the shell one, a threaded clamping column is rotatably provided in the port of each mounting seat, a fixing ring is threadedly connected to each threaded clamping column, and a clamping piece is provided on the bottom surface of the shell two, and a U-shaped bayonet is provided on the clamping piece at the position corresponding to each mounting seat.

[0009] A further improvement is that the reverse osmosis device and the activated carbon adsorption filter cartridge are provided with engaging grooves at positions corresponding to each chuck.

[0010] A further improvement is that a pair of clamping blocks are provided outside the top surface port of the shell, each clamping block is adjacent to each threaded clamping column, and a clamping groove is provided on the bottom surface of the clamping member at a position corresponding to each clamping block.

[0011] A further improvement is that a landing plate is connected to the port of each fixing frame, each landing plate is provided with a snap-fitting notch, and a through pipe is provided through the middle of the fixing frame.

[0012] A further improvement is that the top surface and the bottom surface of the pipe opening of the through pipe are movably provided with connecting sleeves, and the inner wall of each connecting sleeve is provided with an internal thread.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) The utility model adopts a purification system carefully designed inside the treatment tank. The system integrates a reverse osmosis membrane and an activated carbon adsorption filter cartridge. The wastewater is first purified and filtered by the reverse osmosis membrane to remove residual nitrogen, phosphorus and other impurities. The activated carbon adsorption filter in the activated carbon adsorption filter cartridge effectively captures organic matter, some nitrogen, phosphorus and other pollutants in the wastewater. This combination strategy significantly enhances the wastewater treatment efficiency, achieves deep purification of wastewater, greatly improves the effluent quality, and greatly reduces the burden on subsequent treatment processes, thereby improving the overall treatment efficiency.

[0015] (2) The present invention greatly facilitates maintenance and replacement operations by designing the treatment tank into two parts, namely shell one and shell two. When such maintenance is required, the user only needs to loosen the fixing ring on the threaded clamp and flip the threaded clamp out of the U-shaped clamp to easily remove shell two. Subsequently, the entire fixed frame and purification structure can be pulled out together, and the clamp can be separated from the reverse osmosis device and the activated carbon adsorption filter cartridge by loosening the fixing screws one by one, thereby realizing the rapid disassembly, replacement or maintenance of the purification structure, greatly improving the practicality and convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection structure of the first shell and the second shell of the utility model.

[0019] Markings in the figure:

[0020] 1. Processing tank; 11. Shell 1; 12. Shell 2; 101. Output conduit; 102. Block; 103. Slot;

[0021] 2. Mounting seat; 21. Fixing ring; 22. Threaded clamp; 23. Clamp;

[0022] 3. Purification structure; 31. Fixed frame; 32. Reverse osmosis device; 321. Reverse osmosis membrane; 33. Activated carbon adsorption filter cartridge; 331. Activated carbon adsorption filter; 34. Fixed screw; 35. Chuck; 36. Assembly seat; 37. Engaging groove;

[0023] 301. Plate; 302. Engaging notch; 303. Through pipe; 304. Connecting sleeve. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1 and Figure 3 As shown, a wastewater denitrification and dephosphorization device includes a treatment tank 1, which is divided into a shell 1 11 and a shell 2 12, and an output conduit 101 is provided on the bottom surface of the shell 2 12;

[0026] Specifically, a pair of symmetrical mounting seats 2 are provided on the outside of the top surface port of the shell 11, and a threaded clamping column 22 is rotatably provided in the port of each mounting seat 2, and a fixing ring 21 is threadedly connected to each threaded clamping column 22. The bottom surface of the shell 2 12 is sleeved with a clamping member 23, and a U-shaped bayonet is provided on the clamping member 23 at a position corresponding to each mounting seat 2. By placing the clamping member 23 on the shell 2 12 on the surface of the shell 1 11 and making the pair of U-shaped bayonet and the pair of mounting seats 2 correspond to each other, each threaded clamping column 22 is rotated to be clamped in the U-shaped bayonet and the port of the mounting seat 2, and then screwing on the fixing ring 21, the shell 1 11 and the shell 2 12 can be conveniently disassembled;

[0027] Specifically, a pair of clamping blocks 102 are provided on the outside of the top surface port of the housing 11. Each clamping block 102 is adjacent to each threaded clamping column 22. A clamping groove 103 is provided on the bottom surface of the clamping member 23 at a position corresponding to each clamping block 102. The clamping groove 103 and the clamping block 102 are used for limiting the installation of the housing 11 and the housing 2 12.

[0028] like Figure 2 As shown, the implementation also includes: a purification structure 3, which is assembled in the treatment tank 1, and the purification structure 3 includes an assembly seat 36, a fixed frame 31 arranged on the surface and bottom of the assembly seat 36, and a reverse osmosis device 32 and an activated carbon adsorption filter cartridge 33 respectively arranged in each fixed frame 31, each fixed frame 31 is connected with a pair of fixed screws 34, and each fixed screw 34 is connected to a chuck 35 at the end. An activated carbon adsorption filter cartridge 33 is provided with an activated carbon adsorption filter 331, and a reverse osmosis membrane 321 is provided in the reverse osmosis device 32. The top surface of the activated carbon adsorption filter cartridge 33 is provided with a water inlet port, and the bottom is provided with a water outlet port. The top surface of the reverse osmosis device 32 is provided with a water inlet port, and the bottom surface is provided with a pure water port. A sewage port (not shown) is located on the side;

[0029] Specifically, the upper and lower ports of the fixed frame 31 are connected to the plate 301, each plate 301 is provided with a snap-fit notch 302, and the reverse osmosis device 32 and the activated carbon adsorption filter cartridge 33 are provided with a snap-fit groove 37 at the position corresponding to each snap-fit 35. When installing, after the reverse osmosis device 32 is installed in the upper fixed frame 31, the pure water port of the reverse osmosis device 32 is stuck in the snap-fit notch 302, the pure water port passes through the snap-fit 35, and the water inlet port of the reverse osmosis device 32 passes through the upper fixed frame 31, and then by screwing the fixing screw 34, the snap-fit 35 is engaged. 5 is stuck in the locking groove 37 of the reverse osmosis device 32, completing the assembly of the reverse osmosis device 32; accordingly, after the activated carbon adsorption filter cartridge 33 is installed in the lower fixed frame 31, the water inlet port of the activated carbon adsorption filter cartridge 33 is stuck in the locking notch 302 of the fixed frame 31, the water inlet port passes through the chuck 35, and the water outlet port of the activated carbon adsorption filter cartridge 33 passes through the lower fixed frame 31. Then, by screwing the fixing screw 34, the chuck 35 is stuck in the locking groove 37 of the activated carbon adsorption filter cartridge 33, completing the assembly of the reverse osmosis device 32;

[0030] Specifically, a through pipe 303 is provided through the middle of each fixed frame 31, and a connecting sleeve 304 is movably provided on the top and bottom surfaces of the pipe opening of the through pipe 303. The inner wall of each connecting sleeve 304 is provided with an internal thread. After the activated carbon adsorption filter cartridge 33 and the reverse osmosis device 32 are assembled, an external thread is pre-set on the outer wall surface of the pure water port on the bottom surface of the reverse osmosis membrane 321, and an external thread is pre-set on the outer wall surface of the water inlet port on the top surface of the activated carbon adsorption filter cartridge 33. In this way, each connecting sleeve 304 is screwed onto the pure water port on the bottom surface of the reverse osmosis device 32 and the water inlet port of the activated carbon adsorption filter cartridge 33, respectively, to achieve the connection between the reverse osmosis device 32 and the activated carbon adsorption filter cartridge 33.

[0031] After the assembly of the entire purification structure 3 is completed, the lower half of the entire purification structure 3 is placed into the shell 11, and the middle part of the fixing frame 31 is stuck in the top opening of the shell 11. Then the shell 2 12 is covered, and each threaded clamping column 22 is rotated to be stuck in the U-shaped bayonet and the port of the mounting seat 2, and then the fixing ring 21 is screwed on to complete the overall assembly.

[0032] like Figures 1 to 3 As shown, in this embodiment, before the application document is implemented, a connection port is provided on the top surface of the shell 2 12 to connect the external wastewater delivery pipeline and the water inlet port of the reverse osmosis device 32, thereby providing a certain pressure for the reverse osmosis membrane 321 in the reverse osmosis device 32. In addition, it should be noted that this application document only improves the shortcomings of the existing wastewater denitrification and phosphorus removal devices, which have certain limitations on the wastewater treatment effect and are difficult to effectively cope with diverse water quality conditions and wastewater of different concentrations, resulting in reduced overall treatment efficiency. It does not involve other aspects. The working principle of this wastewater denitrification and phosphorus removal device is introduced as follows:

[0033] When the present invention is used, the system integrates a reverse osmosis membrane 321 and an activated carbon adsorption filter cartridge 33, allowing the wastewater to be purified and filtered through the reverse osmosis membrane 321 first to remove residual nitrogen, phosphorus and other impurities, and then passing through the activated carbon adsorption filter 331 in the activated carbon adsorption filter cartridge 33 to effectively capture organic matter, some nitrogen, phosphorus and other pollutants in the wastewater. This combined strategy significantly enhances the wastewater treatment efficiency, achieves deep purification of wastewater, greatly improves the effluent quality, and greatly reduces the burden on subsequent treatment processes, thereby improving the overall treatment efficiency.

[0034] In addition, the new design greatly facilitates maintenance and replacement operations by designing the treatment tank 1 into two parts, namely shell 1 11 and shell 2 12. When such maintenance is required, the user simply loosens the fixing ring 21 on the threaded clamp 22, flips the threaded clamp 22 out of the U-shaped clamp, and easily removes shell 2 12. Subsequently, the entire fixed frame 31 and purification structure 3 can be pulled out together. By loosening the fixing screws 34 one by one, the chuck 35 is separated from the reverse osmosis device 32 and the activated carbon adsorption filter cartridge 33, thereby achieving rapid disassembly, replacement, or maintenance of the purification structure 3, greatly improving the practicality and convenience of the device.

[0035] The above embodiments are only used to illustrate the technical method of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A device for denitrification and dephosphorization of wastewater, characterized in that: comprising a processing tank (1); The processing tank (1) is divided into a shell 1 (11) and a shell 2 (12), and the bottom surface of the shell 2 (12) is provided with an output conduit (101); A purification structure (3) is assembled in a treatment tank (1). The purification structure (3) comprises an assembly seat (36), a fixed frame (31) arranged on the surface and bottom of the assembly seat (36), and a reverse osmosis device (32) and an activated carbon adsorption filter cartridge (33) respectively arranged in each fixed frame (31). A pair of fixed screws (34) are connected through each fixed frame (31), and a chuck (35) is connected at the end of each fixed screw (34).

2. The device for denitrification and dephosphorization of wastewater according to claim 1, characterized in that: A pair of symmetrical mounting seats (2) are provided on the outside of the top surface port of the shell (11), a threaded clamping column (22) is rotatably provided in the port of each mounting seat (2), and a fixing ring (21) is threadedly connected to each threaded clamping column (22), and a clamping member (23) is sleeved on the bottom surface of the shell (12), and a U-shaped bayonet is provided on the clamping member (23) at a position corresponding to each mounting seat (2).

3. The device for denitrification and dephosphorization of wastewater according to claim 1, characterized in that: The reverse osmosis device (32) and the activated carbon adsorption filter cartridge (33) are provided with engaging grooves (37) at positions corresponding to each chuck (35).

4. The device for denitrification and dephosphorization of wastewater according to claim 2, characterized in that: A pair of clamping blocks (102) are provided outside the top surface port of the shell (11), each clamping block (102) and each threaded clamping column (22) are adjacently distributed, and a clamping groove (103) is provided on the bottom surface of the clamping member (23) at a position corresponding to each clamping block (102).

5. The device for denitrification and dephosphorization of wastewater according to claim 4, characterized in that: A landing plate (301) is connected to the port of each fixed frame (31), and each landing plate (301) is provided with a snap-fitting notch (302). A through pipe (303) is provided through the middle of the fixed frame (31).

6. The device for denitrification and dephosphorization of wastewater according to claim 5, characterized in that: The top surface and the bottom surface of the pipe opening of the through pipe (303) are movably sleeved with connecting sleeves (304), and the inner wall of each connecting sleeve (304) is provided with an internal thread.

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