A side-flow biomultiplier reactor for nitrogen and phosphorus removal

Abstract

This invention provides a side-flow biomass reactor for nitrogen and phosphorus removal, relating to the field of wastewater treatment. It includes a reactor structure comprising a reaction shell, an aerobic zone, a microporous aeration disc frame, and a jet aerator. A separation mechanism is provided on one side of the reactor structure, comprising a separator shell, a separation tank, a spiral guide plate, a sludge return pipe, a first positioning groove, a second positioning groove, a first filter screen, a first positioning frame, a first groove, a second filter screen, a second positioning frame, and a second groove. In this invention, highly active sludge is retained by the second filter screen, while light sludge is discharged through the first filter screen. During separation between the sludge return pipe and the separator shell, the first and second grooves are engaged, causing the first and second positioning frames to move upwards, thereby removing the first and second filter screens and increasing sludge separation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a side-flow biomultiplier reactor for nitrogen and phosphorus removal. Background Technology

[0002] Wastewater treatment refers to the process of removing pollutants from wastewater through physical, chemical, and biological methods to meet discharge standards or reuse requirements. It often requires the use of traditional activated sludge processes for nitrogen and phosphorus removal.

[0003] In existing technologies, the traditional activated sludge process suffers from low sludge concentration, insufficient carbon source utilization, and limited nitrogen and phosphorus removal efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a side-flow biomultiplication reactor for nitrogen and phosphorus removal, in order to solve the problems mentioned in the background art, such as low sludge concentration, insufficient carbon source utilization, and limited nitrogen and phosphorus removal efficiency of the traditional activated sludge process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: including a reactor mechanism, the reactor mechanism comprising a reaction shell, an aerobic zone, a microporous aeration disc frame and a jet aerator, and a separation mechanism provided on one side of the reactor mechanism, the separation mechanism comprising a separator shell, a separation tank, a spiral guide plate, a sludge return pipe, a first positioning groove, a second positioning groove, a first filter screen, a first positioning frame, a first groove, a second filter screen, a second positioning frame and a second groove.

[0006] In a preferred embodiment, an aerobic zone is provided in the middle of the reaction shell, and the inner wall of the aerobic zone is fixedly connected to one end of the microporous aeration disc frame. A jet aerator is provided inside the aerobic zone. A sedimentation zone is provided at the top of the reaction shell, and an anaerobic zone is provided at the bottom of the reaction shell.

[0007] In a preferred embodiment, one side of the reaction shell is fixedly connected to one side of the separator shell, and a separation groove is provided inside the separator shell.

[0008] In a preferred embodiment, the top of the separation tank is fixedly connected to the top of the spiral guide plate, and the bottom of the separator housing is fixedly connected to the top of the sludge return pipe.

[0009] In a preferred embodiment, the inner wall of the sludge return pipe is provided with a first positioning groove, and the inner wall of the first positioning groove is provided with a second positioning groove.

[0010] In a preferred embodiment, the inner wall of the sludge return pipe is movably connected to the outer wall of the first filter screen, both sides of the first filter screen are fixedly connected to the bottom side of the first positioning frame, and a first groove is provided on the inner top side of the first positioning frame.

[0011] In a preferred embodiment, the outer wall of the first positioning frame is movably connected to the inner wall of the first positioning groove, the inner wall of the sludge return pipe is movably connected to the outer wall of the second filter screen, the second filter screen is located above the first filter screen, and both sides of the second filter screen are fixedly connected to one side of the second positioning frame.

[0012] In a preferred embodiment, a second groove is provided on the inner side of the top of the second positioning frame, the outer wall of the second positioning frame is movably connected to the inner wall of the second positioning groove, the bottom of the separator shell is connected to the bottom of the reaction shell through a connecting pipe, the side of the separator shell is connected to the bottom of the aerobic zone through a connecting pipe, and the top of the sludge return pipe is connected to the interior of the aerobic zone through a connecting pipe.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, wastewater enters the interior of the separator shell through the anaerobic zone at the bottom of the reaction shell. Then, dynamic sludge classification is achieved through the spiral guide plate. The concentrated sludge containing nitrifying bacteria and polyphosphate-accumulating bacteria re-enters the anaerobic zone through the bottom of the separation tank. The concentrated sludge is then filtered through the second filter screen and the first filter screen. The second filter screen traps highly active sludge, while the first filter screen discharges light sludge. When the sludge is separated between the sludge return pipe and the separator shell, the first and second positioning frames are moved upward by snapping on the first and second grooves, thereby removing the first and second filter screens. This increases the sludge separation efficiency and facilitates the replacement and disassembly of the first and second filter screens.

[0015] 2. This utility model generates microbubbles through a microporous aeration disc, which greatly improves oxygen transfer efficiency and meets the high oxygen demand of nitrifying bacteria. It creates an anaerobic microenvironment through a jet aerator, which promotes nitrification and denitrification to proceed simultaneously. The combination of the microporous aeration disc and the jet aerator significantly improves the nitrogen and phosphorus removal effect. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a side-flow biomultiplier reactor nitrogen and phosphorus removal device provided by this utility model;

[0017] Figure 2 A schematic diagram of the aerobic zone of a side-flow biomultiplier reactor for nitrogen and phosphorus removal provided by this utility model;

[0018] Figure 3 A schematic diagram of the separation mechanism of a side-flow biomultiplier reactor nitrogen and phosphorus removal device provided by this utility model;

[0019] Figure 4 Exploded view of the sludge return pipe of a side-flow biomultiplier reactor nitrogen and phosphorus removal device provided by this utility model;

[0020] Figure 5 A cross-sectional view of the separator shell of a side-flow biomultiplier reactor for nitrogen and phosphorus removal provided by this utility model.

[0021] Legend:

[0022] 1. Reactor structure; 101. Reactor shell; 102. Aerobic zone; 103. Microporous aeration disc frame; 104. Jet aerator; 2. Separation mechanism; 201. Separator shell; 202. Separation tank; 203. Spiral guide plate; 204. Sludge return pipe; 205. First positioning groove; 206. Second positioning groove; 207. First filter screen; 208. First positioning frame; 209. First groove; 210. Second filter screen; 211. Second positioning frame; 212. Second groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-5 This utility model provides a technical solution comprising: a reactor mechanism 1, which includes a reaction shell 101, an aerobic zone 102, a microporous aeration disc frame 103, and a jet aerator 104. A separation mechanism 2 is provided on one side of the reactor mechanism 1. The separation mechanism 2 includes a separator shell 201, a separation tank 202, a spiral guide plate 203, a sludge return pipe 204, a first positioning groove 205, a second positioning groove 206, a first filter screen 207, a first positioning frame 208, a first groove 209, a second filter screen 210, a second positioning frame 211, and a second groove 212.

[0025] In one embodiment, an aerobic zone 102 is provided in the middle of the reaction shell 101, and the inner wall of the aerobic zone 102 is fixedly connected to one end of the microporous aeration disc frame 103. A jet aerator 104 is provided inside the aerobic zone 102. A sedimentation zone is provided at the top of the reaction shell 101, and an anaerobic zone is provided at the bottom of the reaction shell 101. One side of the reaction shell 101 is fixedly connected to one side of the separator shell 201, and a separation tank 202 is provided inside the separator shell 201.

[0026] Specifically: the microporous aeration disc 103 generates tiny bubbles, which greatly improves oxygen transfer efficiency and meets the high oxygen demand of nitrifying bacteria. The jet aerator 104 creates an anaerobic microenvironment, which promotes nitrification and denitrification to proceed simultaneously. The combination of the microporous aeration disc 103 and the jet aerator 104 significantly improves the nitrogen and phosphorus removal effect.

[0027] In one embodiment, the top of the separation tank 202 is fixedly connected to the top of the spiral guide plate 203, the bottom of the separator housing 201 is fixedly connected to the top of the sludge return pipe 204, the inner wall of the sludge return pipe 204 is provided with a first positioning groove 205, and the inner wall of the first positioning groove 205 is provided with a second positioning groove 206, the inner wall of the sludge return pipe 204 is movably connected to the outer wall of the first filter screen 207, both sides of the first filter screen 207 are fixedly connected to the bottom side of the first positioning frame 208, the top inner side of the first positioning frame 208 is provided with a first groove 209, the outer wall of the first positioning frame 208 is movably connected to the inner wall of the first positioning groove 205, the inner wall of the sludge return pipe 204 is movably connected to the outer wall of the second filter screen 210, the second filter screen 210 is located above the first filter screen 207, and both sides of the second filter screen 210 are fixedly connected to one side of the second positioning frame 211.

[0028] In one embodiment, a second groove 212 is provided on the inner side of the top of the second positioning frame 211, the outer wall of the second positioning frame 211 is movably connected to the inner wall of the second positioning groove 206, the bottom of the separator housing 201 is connected to the bottom of the reaction housing 101 through a connecting pipe, the side of the separator housing 201 is connected to the bottom of the aerobic zone 102 through a connecting pipe, and the top of the sludge return pipe 204 is connected to the interior of the aerobic zone 102 through a connecting pipe.

[0029] Specifically: The concentrated sludge is filtered through the second filter screen 210 and the first filter screen 207. The second filter screen 210 traps highly active sludge, while the first filter screen 207 discharges light sludge. When the sludge is separated between the sludge return pipe 204 and the separator housing 201, the first positioning frame 208 and the second positioning frame 211 are moved upward by snapping the first groove 209 and the second groove 212, which in turn drives the first filter screen 207 and the second filter screen 210 to be removed. This increases the sludge separation efficiency and facilitates the replacement and disassembly of the first filter screen 207 and the second filter screen 210.

[0030] Working principle: Wastewater enters the separator shell 201 through the anaerobic zone at the bottom of the reaction shell 101. Then, dynamic sludge classification is achieved through the spiral guide plate 203. Concentrated sludge containing nitrifying bacteria and polyphosphate-accumulating bacteria re-enters the anaerobic zone through the bottom of the separation tank 202. The concentrated sludge is then filtered through the second filter screen 210 and the first filter screen 207. The second filter screen 210 traps highly active sludge, while the first filter screen 207 discharges light sludge. The wastewater then flows through the sludge return pipe 204 and the separator shell 201. When separating between 01, the first positioning frame 208 and the second positioning frame 211 are moved upward by pressing the first groove 209 and the second groove 212, which in turn causes the first filter screen 207 and the second filter screen 210 to be taken out. Then the supernatant and light flocs enter the interior of the aerobic zone 102. Microbubbles are generated through the microporous aeration disc frame 103, which greatly improves the oxygen transfer efficiency and meets the high oxygen consumption of nitrifying bacteria. The jet aerator 104 creates an oxygen-deficient microenvironment, which promotes nitrification and denitrification to proceed simultaneously.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A side-flow biomultiplication reactor for nitrogen and phosphorus removal, characterized in that, include: The reactor structure (1) includes a reaction shell (101), an aerobic zone (102), a microporous aeration disc frame (103), and a jet aerator (104). A separation mechanism (2) is provided on one side of the reactor structure (1). The separation mechanism (2) includes a separator shell (201), a separation tank (202), a spiral guide plate (203), a sludge return pipe (204), a first positioning groove (205), a second positioning groove (206), a first filter screen (207), a first positioning frame (208), a first groove (209), a second filter screen (210), a second positioning frame (211), and a second groove (212).

2. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 1, characterized in that: An aerobic zone (102) is provided in the middle of the reaction shell (101), and the inner wall of the aerobic zone (102) is fixedly connected to one end of the microporous aeration disc frame (103). A jet aerator (104) is provided inside the aerobic zone (102). A sedimentation zone is provided at the top of the reaction shell (101), and an anaerobic zone is provided at the bottom of the reaction shell (101).

3. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 1, characterized in that: One side of the reaction shell (101) is fixedly connected to one side of the separator shell (201), and a separation groove (202) is provided inside the separator shell (201).

4. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 3, characterized in that: The top of the separation tank (202) is fixedly connected to the top of the spiral guide plate (203), and the bottom of the separator housing (201) is fixedly connected to the top of the sludge return pipe (204).

5. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 4, characterized in that: The inner wall of the sludge return pipe (204) is provided with a first positioning groove (205), and the inner wall of the first positioning groove (205) is provided with a second positioning groove (206).

6. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 5, characterized in that: The inner wall of the sludge return pipe (204) is movably connected to the outer wall of the first filter screen (207). Both sides of the first filter screen (207) are fixedly connected to the bottom side of the first positioning frame (208). The top inner side of the first positioning frame (208) is provided with a first groove (209).

7. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 6, characterized in that: The outer wall of the first positioning frame (208) is movably connected to the inner wall of the first positioning groove (205), the inner wall of the sludge return pipe (204) is movably connected to the outer wall of the second filter screen (210), the second filter screen (210) is located above the first filter screen (207), and both sides of the second filter screen (210) are fixedly connected to one side of the second positioning frame (211).

8. The side-flow biomultiplication reactor nitrogen and phosphorus removal device according to claim 7, characterized in that: The second positioning frame (211) has a second groove (212) on its top inner side. The outer wall of the second positioning frame (211) is movably connected to the inner wall of the second positioning groove (206). The bottom of the separator housing (201) is connected to the bottom of the reaction housing (101) through a connecting pipe. The side of the separator housing (201) is connected to the bottom of the aerobic zone (102) through a connecting pipe. The top of the sludge return pipe (204) is connected to the interior of the aerobic zone (102) through a connecting pipe.

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