Water treatment filler device capable of synchronously removing nitrogen and phosphorus

Abstract

The utility model provides a water treatment filler device capable of synchronously removing nitrogen and phosphorus, which comprises a water inlet pump, a pipeline mixer, a reactor, a sedimentation tank and a drainage pump which are connected in sequence, industrial wastewater or domestic sewage is introduced into one end of the water inlet pump, the other end of the water inlet pump is connected with the pipeline mixer, and a seed crystal mixture is added into the pipeline mixer and used for being fully mixed with the industrial wastewater or the domestic sewage to obtain a wastewater mixture; the reactor adopts two sets of reaction tanks which are connected in series, the water inlet end of one set of reaction tank is connected with the pipeline mixer and is used for the reaction of a wastewater mixture, and the seed crystal mixture helps to preliminarily remove soluble pollutants in industrial wastewater or domestic sewage through a precipitation or nucleation effect; the other set of reaction tank ensures that pollutants in water are thoroughly removed; the water outlet end of the other set of reaction tank is connected with a sedimentation tank; and the sedimentation tank is used for discharging water meeting the water quality requirement through a drainage pump.

Description

Technical Field

[0001] This utility model relates to the technical field of water treatment packing for removing nitrogen and phosphorus, and more particularly to a water treatment packing device for simultaneously removing nitrogen and phosphorus. Background Technology

[0002] Domestic sewage, industrial wastewater, and agricultural non-point source runoff contain certain concentrations of ammonia nitrogen and inorganic phosphorus. Nitrogen and phosphorus removal methods for domestic sewage and industrial wastewater include A2O processes, oxidation ditch processes, breakpoint chlorination, and coagulation sedimentation, among others, and combinations of one or more of these processes. Ammonia nitrogen and inorganic phosphorus in agricultural non-point source runoff are removed using processes such as ecological ditches and wetlands. Biological treatment processes such as A2O, oxidation ditches, ecological ditches, and constructed wetlands have relatively harsh operating conditions and difficulty in simultaneously removing nitrogen and phosphorus. Breakpoint chlorination and coagulation sedimentation processes have problems such as the inability to simultaneously remove pollutants and high operating costs.

[0003] To save on the operating costs of treatment equipment and improve treatment efficiency, there is an urgent need for a water treatment packing device that can simultaneously remove nitrogen and phosphorus. Utility Model Content

[0004] The purpose of this invention is to provide a water treatment packing device that can efficiently and simultaneously remove nitrogen and phosphorus pollutants, reducing the shortcomings of traditional water treatment processes, and improving the system's operating efficiency and economy.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A water treatment packing device for simultaneous removal of nitrogen and phosphorus includes an inlet pump, a pipeline mixer, a reactor, a sedimentation tank, and a drain pump connected in sequence. One end of the inlet pump introduces industrial wastewater or domestic sewage, and the other end is connected to the pipeline mixer. A seed crystal mixture is added to the pipeline mixer to thoroughly mix with the industrial wastewater or domestic sewage to obtain a wastewater mixture. The reactor consists of two sets of reaction tanks connected in series. The inlet end of one reaction tank is connected to the pipeline mixer for reacting the wastewater mixture. The seed crystal mixture helps to initially remove dissolved pollutants in the industrial wastewater or domestic sewage through precipitation or nucleation. The other reaction tank ensures that pollutants in the water are completely removed. The outlet end of the other reaction tank is connected to the sedimentation tank, and the sedimentation tank discharges water that meets the required water quality through the drain pump.

[0007] Preferably, the reactor includes a first reactor and a second reactor connected in series. The first reactor and the second reactor have the same structure, both including U-shaped stirring blades to increase the contact area and contact range between the stirring blades and the liquid in the reactor.

[0008] The stirring blades are connected to an external vertical fixed mixer via a connecting rod to provide driving force.

[0009] Preferably, a backflow baffle is provided below the stirring blades. The backflow baffle is located at the bottom of the reactor and rotates in the same direction as the vertical fixed mixer. This is used to increase the flow deflection effect and make the water distribution and stirring more uniform.

[0010] Preferably, the backflow baffle is a multi-layered baffle, and is distributed in a 360° fan shape at the bottom of the reactor tank.

[0011] Preferably, the angle between the backflow baffle and the plane at the bottom of the reactor body is 30°, and the baffle increases the stirring effect.

[0012] Preferably, the first reactor and the second reactor are provided with an insulation layer, which is used to store the temperature inside the reactor.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) This utility model adopts a design of two sets of reaction tanks connected in series. One set of reaction tanks initially removes pollutants, while the other set of reaction tanks ensures complete removal. This design can guarantee the high efficiency of wastewater treatment, reduce the residue of pollutants, and further improve water quality.

[0015] (2) The reactor of this invention is equipped with U-shaped stirring blades, which can increase the contact area and range between the stirring blades and the liquid, and improve the full reaction effect of the seed mixture and wastewater. Effective stirring helps to ensure the uniformity of the reaction, ensures the increase of the reaction rate, and reduces dead zones and unreacted pollutants.

[0016] (3) In this invention, a backflow baffle is provided below the stirring blades in the reactor. The backflow baffle helps to adjust the water flow direction and prevent liquid from accumulating at the bottom of the reaction tank. By improving the rotation and mixing effect of the water flow, it ensures that pollutants can be fully mixed with the seed crystals, thereby improving the reaction efficiency. Furthermore, the multi-layered, fan-shaped backflow baffle design can guide the water flow more efficiently and optimize the reaction process.

[0017] (4) The reactor of this invention is provided with an insulation layer, which can maintain a stable temperature inside the reactor. This is very important for improving reaction efficiency and ensuring the smooth progress of biological or chemical reactions. Especially in low-temperature environments, the insulation layer helps to prevent the reaction rate from decreasing due to excessively low temperatures.

[0018] (5) The multi-layer backflow baffle and stirring blade design adopted by this utility model makes the flow inside the reactor more uniform, avoids local over-stirring or dead zone, enhances the operational stability of the entire system, and reduces the risk of downtime due to equipment problems.

[0019] In summary, this invention, through optimized reaction tank structure, stirring, and flow control, can efficiently and simultaneously remove nitrogen and phosphorus pollutants, reducing the shortcomings of traditional water treatment processes while improving system operating efficiency and economy. It achieves improved water treatment effect, reduced costs, and stable operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a water treatment packing device for simultaneous removal of nitrogen and phosphorus, provided as an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the reactor structure in a water treatment packing device for simultaneous removal of nitrogen and phosphorus, provided as an embodiment of the present invention.

[0022] The serial numbers in the diagram are as follows:

[0023] 1. Inlet pump; 2. Pipeline mixer; 3. First reaction tank; 4. Second reaction tank; 4-1. Reaction shell; 4-2. Stirring blade; 4-3. Backflow baffle; 4-4. Vertical fixed mixer; 5. Sedimentation tank; 6. Drain pump. Detailed Implementation

[0024] 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.

[0025] like Figure 1 As shown, this embodiment provides a water treatment packing device for simultaneous removal of nitrogen and phosphorus, comprising an inlet pump 1, a pipeline mixer 2, a reactor, a sedimentation tank 5, and a drain pump 6 connected in sequence.

[0026] One end of the inlet pump 1 introduces industrial wastewater or domestic sewage, and the other end is connected to the pipeline mixer 2. The pipeline mixer 2 is filled with a seed mixture to fully mix with the industrial wastewater or domestic sewage to obtain a wastewater mixture. The seed mixture is obtained by mixing magnesium slag mixture and struvite seed.

[0027] The reactor comprises two reaction tanks connected in series: a first reactor 3 and a second reactor 4. Both reactors 3 and 4 have identical structures, including U-shaped stirring blades 4-2. These blades increase the contact area and range between the stirring blades 4-2 and the liquid within the reactor, enhancing the reaction efficiency between the seed crystal mixture and the wastewater. Effective stirring contributes to the uniformity of the reaction, ensuring a higher reaction rate and reducing dead zones and unreacted contaminants. The stirring blades 4-2 are connected to an external vertical fixed mixer 4-4 via connecting rods to provide driving force.

[0028] Furthermore, in this embodiment, a backflow baffle 4-3 is provided below the stirring blade 4-2. The backflow baffle 4-3 is located at the bottom of the reactor and rotates in the same direction as the vertical fixed stirrer 4-4. The backflow baffle helps to adjust the water flow direction and prevent liquid from accumulating at the bottom of the reaction tank. By improving the rotation and mixing effect of the water flow, it ensures that contaminants can be fully mixed with the seed crystals, thereby improving the reaction efficiency. The multi-layered, fan-shaped backflow baffle design can guide the water flow more efficiently, optimize the reaction process, and increase the deflection effect to make water distribution and stirring more uniform.

[0029] The inlet of the first reactor 3 is connected to the pipe mixer 2 for the reaction of wastewater mixture. The seed mixture helps to initially remove dissolved pollutants in industrial wastewater or domestic sewage through precipitation or nucleation. The second reactor 4 is used to ensure that pollutants in the water are completely removed. The outlet of the second reactor 4 is connected to the sedimentation tank 5. By adding flocculant at the outlet, the removal of pollutants is promoted. The sedimentation tank 5 discharges water that meets the water quality requirements through the drainage pump 6.

[0030] Furthermore, in this embodiment, the backflow baffle 4-3 adopts a multi-layer baffle, and is distributed in a 360° fan shape at the bottom of the first reactor.

[0031] Furthermore, in this embodiment, the angle between the backflow baffle 4-3 and the plane at the bottom of the reactor body is 30°, and the baffle increases the stirring effect.

[0032] Furthermore, in this embodiment, the first reactor 3 and the second reactor 4 are provided with an insulation layer. The insulation layer is used to store the temperature inside the reactor, which is very important for improving reaction efficiency and ensuring the smooth progress of biological or chemical reactions. Especially in low-temperature environments, the insulation layer helps to prevent the reaction rate from decreasing due to excessively low temperatures.

[0033] The working principle of this utility model is as follows:

[0034] (1) Water intake stage: Water intake pump 1 introduces industrial wastewater or domestic sewage into the system. The water first enters the pipe mixer 2; in the pipe mixer 2, a seed mixture (a mixture of magnesium slag and struvite seed mixture) is added. These seeds help the nucleation and precipitation of pollutants and promote the removal of dissolved pollutants (such as ammonia nitrogen and inorganic phosphorus) in the water.

[0035] (2) Reaction stage: The wastewater mixture enters the reactor after passing through the pipeline mixer. The reactor consists of two sets of reaction tanks connected in series, namely, the first reaction tank 3 and the second reaction tank 4.

[0036] After the wastewater mixture enters the first reaction tank 3, the water flow undergoes a thorough mixing and reaction with the seed crystal mixture. The main task at this stage is to initially remove dissolved pollutants (such as ammonia nitrogen and phosphorus) from the water through the action of the seed crystals. The seed crystals combine with the pollutants in the water through nucleation and precipitation to form larger particles, which facilitate subsequent sedimentation and removal.

[0037] In the first reaction tank 3, the water flow is aided by U-shaped stirring blades, which increase the contact area between the liquid and the reactants, ensuring that contaminants and seed crystals in the water react fully. The design of the backflow baffle helps to improve the mixing efficiency and uniformity of the water flow by adjusting the direction of the water flow, preventing the accumulation of contaminants in the reaction tank.

[0038] Water flowing out of the first reaction tank 3 enters the second reaction tank 4, where it undergoes further reaction and sedimentation to ensure that pollutants (such as ammonia nitrogen and inorganic phosphorus) are completely removed. The function of the second reaction tank 4 is to further purify the water and ensure that the effluent meets the predetermined standards.

[0039] The design of the second reaction tank 4 is the same as that of the first reaction tank, still using stirring blades and a backflow baffle system to ensure the uniformity and efficiency of the reaction.

[0040] (3) Sedimentation and discharge stage: The reacted water flows into sedimentation tank 5. During this stage, pollutants in the water (such as ammonia nitrogen, phosphorus and other suspended solids) are precipitated in sedimentation tank 5. Due to the effect of seed crystals, the pollutants have formed larger particles and can be effectively removed in sedimentation tank 5.

[0041] The sludge and sediment in sedimentation tank 5 gradually settle to the bottom, while the supernatant continues to flow to the system's outlet. The treated water is then discharged via drainage pump 6, meeting the predetermined water quality standards.

[0042] This invention optimizes the reaction tank structure, stirring, and flow control to efficiently and simultaneously remove nitrogen and phosphorus pollutants, reducing the shortcomings of traditional water treatment processes while improving system operating efficiency and economy. It achieves improved water treatment results, reduced costs, and stable operation.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 component 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.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] 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 water treatment packing device for simultaneous removal of nitrogen and phosphorus, characterized in that, It includes an inlet pump (1), a pipeline mixer (2), a reactor, a sedimentation tank (5), and a drain pump (6) connected in sequence; One end of the water inlet pump (1) introduces industrial wastewater or domestic sewage, and the other end is connected to the pipeline mixer (2). Seed mixture is added to the pipeline mixer (2) to fully mix with industrial wastewater or domestic sewage to obtain a wastewater mixture. The reactor uses two sets of reaction tanks connected in series. The inlet of one set of reaction tanks is connected to the pipe mixer (2) for the reaction of wastewater mixture. The seed mixture helps to initially remove dissolved pollutants in industrial wastewater or domestic sewage through precipitation or nucleation. The other set of reaction tanks ensures that pollutants in the water are completely removed. The outlet of another set of reaction tanks is connected to a sedimentation tank (5), and the sedimentation tank (5) discharges water that meets the water quality requirements through a drainage pump (6).

2. The water treatment packing device for simultaneous removal of nitrogen and phosphorus according to claim 1, characterized in that, The reactor includes a first reactor (3) and a second reactor (4) connected in series. The first reactor (3) and the second reactor (4) have the same structure and both include U-shaped stirring blades (4-2) to increase the contact area and contact range between the stirring blades (4-2) and the liquid in the reactor. The stirring blade (4-2) is connected to an external vertical fixed mixer (4-4) via a connecting rod to provide driving force.

3. The water treatment packing device for simultaneous removal of nitrogen and phosphorus according to claim 2, characterized in that, Below the stirring blade (4-2) is a backflow baffle (4-3), which is located at the bottom of the reactor. The backflow baffle (4-3) is used to increase the flow deflection effect so that the water distribution and stirring are more uniform.

4. The water treatment packing device for simultaneous removal of nitrogen and phosphorus according to claim 3, characterized in that, The backflow baffle (4-3) is a multi-layered baffle, and is distributed in a 360° fan shape at the bottom of the reactor tank.

5. The water treatment packing device for simultaneous removal of nitrogen and phosphorus according to claim 3, characterized in that, The angle between the backflow baffle (4-3) and the plane at the bottom of the reactor body is 30°, and the baffle increases the stirring effect.

6. The water treatment packing device for simultaneous removal of nitrogen and phosphorus according to claim 2, characterized in that, The first reactor (3) and the second reactor (4) are provided with an insulation layer, which is used to maintain the temperature inside the reactor.

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