Integrated sewage treatment system

Abstract

This utility model discloses an integrated wastewater treatment system. It includes an equalization tank, with a wastewater outlet fixedly connected to its left side. A coarse screen is installed inside the wastewater outlet. A fine screen (like a winch) is installed inside the equalization tank. An anaerobic tank is fixedly connected to its right side, containing a submersible mixer and a biological packing frame. An aerobic tank is also fixedly connected to its right side, containing a membrane bioreactor. An aerator is located below the membrane bioreactor. A sand filter is fixedly connected to its right side, and an adsorption tank is fixedly connected below the sand filter. A disinfection tank is fixedly connected to its right side. Through this structure, the coarse screen and fine screen remove large solid debris and fine suspended solids; the anaerobic-aerobic tank degrades organic matter, removing nitrogen and phosphorus; the sand filter and adsorption tank retain organic matter and colloidal substances; and the disinfection tank inactivates pathogenic microorganisms, ensuring safe effluent.

Description

Technical Field

[0001] This utility model relates to the field of sewage treatment system technology, and in particular to an integrated sewage treatment system. Background Technology

[0002] Current integrated wastewater treatment systems suffer from insufficient pretreatment and substandard processes, resulting in excessive residual impurities, significant wear and tear on subsequent treatment equipment, and unfiltered and undisinfected effluent that fails to meet safety standards, potentially impacting the environment. For example, a Chinese patent discloses a high-efficiency integrated wastewater treatment system (application number CN201810203665.0). While its fine-mesh filter can remove suspended solid pollutants from wastewater, it fails to trap large solid debris at the wastewater outlet, easily causing filter clogging. Furthermore, it only performs a single filtration, resulting in insufficient filtration, and the effluent is not disinfected to inactivate pathogens, further impacting the environment. Utility Model Content

[0003] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an integrated sewage treatment system that can remove large solid debris and fine suspended matter through coarse screens and windmill-type fine screens, degrade organic matter in anaerobic-aerobic tanks, remove nitrogen and phosphorus, retain organic matter and colloidal substances in sand filters and adsorption tanks, and inactivate pathogenic microorganisms in disinfection tanks to ensure the safety of effluent.

[0004] This utility model also provides an integrated sewage treatment system as described above, comprising: an equalization tank, wherein a sewage outlet is fixedly connected to the left surface of the equalization tank, a coarse screen is provided inside the sewage outlet, a windmill-type fine screen is provided inside the equalization tank, the windmill-type fine screen is fixedly supported inside the equalization tank by a rotating shaft, a submersible pump is provided inside the equalization tank, and the right side of the submersible pump is fixedly connected to an anaerobic tank; an anaerobic tank, wherein a submersible mixer is fixedly connected to the upper surface of the anaerobic tank, the submersible mixer penetrates a biological packing frame, and the biological packing frame is connected by a non- A stainless steel support frame is fixedly connected to the upper surface of the anaerobic tank. A first submersible pump is installed inside the anaerobic tank, and its right side is fixedly connected to an aerobic tank. Multiple membrane bioreactors are fixedly connected to the upper surface of the aerobic tank, and an aerator is installed below each membrane bioreactor. A second submersible pump is installed inside the aerobic tank, and its right side is fixedly connected to a sand filter tank. The sand filter tank contains a double-layer filter, and its lower side is fixedly connected to an adsorption tank containing an activated carbon filter. The right side of the adsorption tank is fixedly connected to a disinfection tank, which contains multiple ultraviolet lamps. Through these components, a coarse screen and a windmill-style fine screen remove large solid debris and fine suspended matter; the anaerobic-aerobic tank degrades organic matter, removing nitrogen and phosphorus; the sand filter tank and adsorption tank retain organic matter and colloidal substances; and the disinfection tank inactivates pathogenic microorganisms, ensuring safe effluent.

[0005] According to the integrated sewage treatment system provided by this utility model, a drive motor is mounted on the rotating shaft, and the output end of the drive motor is fixedly connected to a stainless steel mesh plate. Through these components, the drive motor drives the windmill-style fine screen to rotate clockwise, allowing the stainless steel mesh plate to filter sewage multiple times, separating and removing floating, settled, and suspended impurities such as hair and fine particles. Furthermore, the stainless steel mesh plate provides a stirring effect, preventing sludge deposition.

[0006] According to the integrated wastewater treatment system provided by this utility model, the output end of the submersible mixer is fixedly connected to a stirring blade. These components create water flow, enhance the stirring function, and prevent sludge deposition.

[0007] According to the integrated wastewater treatment system provided by this utility model, the membrane bioreactor is equipped with multiple hollow fiber membranes. Through these components, biodegradable organic pollutants in the water can be removed via activated sludge, effectively retaining sludge and most suspended solids.

[0008] According to the integrated wastewater treatment system provided by this utility model, the aerator is equipped with an aeration disc and an air-walking pipe, and the aeration disc has multiple micropores. These components increase the dissolved oxygen content in the water and also act as a stirrer, ensuring thorough mixing of activated sludge and wastewater, thereby improving the efficiency of the biochemical reaction.

[0009] According to the integrated sewage treatment system provided by this utility model, the upper layer of the double-layer filter is made of quartz sand, and the lower layer is made of anthracite. These components can trap organic matter and colloidal substances.

[0010] According to the integrated sewage treatment system provided by this utility model, the ultraviolet lamp is fixedly connected to the disinfection tank via a stainless steel frame. These components can inactivate pathogenic microorganisms in the sewage.

[0011] According to the integrated sewage treatment system provided by this utility model, an outlet is provided on the right side of the disinfection tank. Through these components, water that meets safety standards can be discharged.

[0012] Compared with existing technologies, this integrated sewage treatment system can remove large solid debris and fine suspended solids through coarse screens and windmill-style fine screens, degrade organic matter in sewage in the anaerobic-aerobic tank to remove nitrogen and phosphorus, retain organic matter and colloidal substances in sand filter tanks and adsorption tanks, and inactivate pathogenic microorganisms in the disinfection tank. Through these components, the safety of effluent can be guaranteed. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is an overall structural diagram of the integrated sewage treatment system of this utility model;

[0015] Figure 2 This is a structural diagram of the biological packing frame and submersible mixer of the integrated sewage treatment system of this utility model;

[0016] Figure 3 This is a diagram showing the internal structure of the integrated wastewater treatment system of this utility model.

[0017] Legend:

[0018] 1. Equalization tank; 2. Wastewater outlet; 3. Coarse screen; 4. Pneumatic fine screen; 5. Rotating shaft; 6. Submersible pump; 7. Anaerobic tank; 8. Submersible mixer; 9. Biological packing frame; 10. Stainless steel support frame; 11. First submersible pump; 12. Aerobic tank; 13. Membrane bioreactor; 14. Aerator; 15. Second submersible pump; 16. Sand filter tank; 17. Double-layer filter; 18. Adsorption tank; 19. Activated carbon filter; 20. Disinfection tank; 21. Ultraviolet lamp; 22. Drive motor; 23. Stainless steel mesh plate; 24. Mixing blade; 25. Hollow fiber membrane; 26. Aeration disc; 27. Aeration pipeline; 28. Stainless steel frame; 29. ​​Outlet. Detailed Implementation

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0020] Reference Figure 1 , Figure 3 This utility model embodiment provides an integrated sewage treatment system, which includes: a sewage outlet 2 fixedly connected to the left surface of an equalization tank 1, a coarse screen 3 provided inside the sewage outlet 2, a windmill-type fine screen 4 provided inside the equalization tank 1, the windmill-type fine screen 4 being fixedly supported inside the equalization tank 1 by a rotating shaft 5, a drive motor 22 being provided on the rotating shaft 5, the output end of the drive motor 22 being fixedly connected to a stainless steel mesh plate 23, and a submersible sewage pump 6 provided inside the equalization tank 1, the right side of the submersible sewage pump 6 being fixedly connected to an anaerobic tank 7;

[0021] Specifically, wastewater enters from wastewater outlet 2, passes through coarse screen 3 to filter large solid debris, and then enters windmill-type fine screen 4. Drive motor 22 drives windmill-type fine screen 4 to rotate clockwise. After being filtered multiple times by stainless steel mesh 23, floating, settling and suspended impurities such as hair and fine particles in the water are separated and removed. The wastewater then flows into equalization tank 1, and is pumped from equalization tank 1 into anaerobic tank 7 by submersible pump 6.

[0022] Reference Figure 1 , Figure 2 , Figure 3 A submersible mixer 8 is fixedly connected to the upper surface of the anaerobic tank 7. A stirring blade 24 is fixedly connected to the output end of the submersible mixer 8. The submersible mixer 8 passes through the biological packing frame 9. The biological packing frame 9 is fixedly connected to the upper surface of the anaerobic tank 7 through a stainless steel bracket 10. A first submersible pump 11 is provided in the anaerobic tank 7. The right side of the first submersible pump 11 is fixedly connected to the aerobic tank 12. Multiple membrane bioreactors 13 are fixedly connected to the upper surface of the aerobic tank 12. Multiple hollow fiber membranes 25 are provided on the membrane bioreactors 13. An aerator 14 is provided below the membrane bioreactors 13. An aerator 14 is provided on the aerator 14. An aeration disc 26 and a stepping pipe 27 are provided on the aeration disc 26. Multiple micropores are provided on the aeration disc 26. A second submersible pump 15 is provided in the aerobic tank 12. The right side of the second submersible pump 15 is fixedly connected to the sand filter tank 16.

[0023] Specifically, after the wastewater enters the anaerobic tank 7, the submersible mixer 8 drives the mixing blades 24 to create water flow, enhance the mixing function, prevent sludge deposition, and ensure that the wastewater fully contacts the biological packing material in the biological packing frame 9, promoting water circulation and nitrification, denitrification, and phosphorus removal. Then, the first submersible pump 11 pumps the wastewater from the anaerobic tank 7 into the aerobic tank 12. The wastewater passes through the hollow fiber membrane 25 on the membrane bioreactor 13, removing biodegradable organic pollutants in the water and effectively intercepting sludge and most suspended solids. At the same time, multiple micropores on the aerator 14 diffuse air bubbles into the wastewater, increasing the dissolved oxygen content in the water and also playing a mixing role, so that the activated sludge and wastewater are fully mixed, improving the efficiency of the biochemical reaction. Then, the wastewater is pumped into the sand filter tank 16 by the second submersible pump 15.

[0024] Reference Figure 1 , Figure 3 The sand filter tank 16 is equipped with a double-layer filter 17. The upper layer of the double-layer filter 17 is quartz sand and the lower layer is anthracite. The sand filter tank 16 is fixedly connected to the adsorption tank 18 below. The adsorption tank 18 is equipped with an activated carbon filter 19. The right side of the adsorption tank 18 is fixedly connected to the disinfection tank 20. The disinfection tank 20 is equipped with multiple ultraviolet lamps 21. The ultraviolet lamps 21 are fixedly connected to the disinfection tank 20 through a stainless steel rack 28. The right side of the disinfection tank 20 is equipped with an outlet 29.

[0025] Specifically, after the wastewater passes through the double-layer filter 17 in the sand filter tank 16 to remove trapped organic matter and colloidal substances, it flows into the adsorption tank 18 below. After passing through the activated carbon filter 19, it removes odors, organic matter, colloids and other free substances, microorganisms, and some heavy metal ions from the water, and reduces the color of the water. Then it flows into the disinfection tank 20 on the right, where the ultraviolet lamp 21 inactivates pathogenic microorganisms. Finally, the water that meets the safety discharge standards is discharged from the outlet 29.

[0026] Working Principle: Wastewater enters from wastewater inlet 2, passes through coarse screen 3 to filter large solid debris, and then enters fine screen 4. Drive motor 22 drives the fine screen 4 to rotate clockwise. The wastewater passes through stainless steel mesh 23 multiple times, separating and removing floating, settling, and suspended impurities such as hair and fine particles. The wastewater then flows into equalization tank 1. Submersible pump 6 pumps the wastewater from equalization tank 1 into anaerobic tank 7. In anaerobic tank 7, submersible mixer 8 drives stirring blades 24 to create water flow and enhance mixing, ensuring the wastewater fully contacts the biological packing material in biological packing frame 9. Then, first submersible pump 11 pumps the wastewater from anaerobic tank 7 into aerobic tank 12. The wastewater then undergoes membrane bioreactor (BBR) reaction... The hollow fiber membrane 25 on the aerator 13 removes biodegradable organic pollutants from the water, effectively trapping sludge and most suspended solids. At the same time, the micropores on the aerator 14 diffuse air bubbles into the wastewater, increasing the dissolved oxygen content and also acting as a stirrer. Then, the wastewater is pumped into the sand filter tank 16 by the second submersible pump 15. After passing through the double-layer filter 17 to remove trapped organic matter and colloidal substances, it flows into the adsorption tank 18 below. After passing through the activated carbon filter 19, it removes odors, organic matter, colloids and other free matter, microorganisms, and some heavy metal ions from the water, and reduces the color of the water. Then, it flows into the disinfection tank 20 on the right. The ultraviolet lamp 21 inactivates pathogenic microorganisms. Finally, the water that meets the safety discharge standards is discharged from the outlet 29.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An integrated wastewater treatment system, characterized in that, include: An equalization tank (1) is provided with a sewage outlet (2) fixedly connected to the left surface of the equalization tank (1). A coarse screen (3) is provided inside the sewage outlet (2). A windmill-type fine screen (4) is provided inside the equalization tank (1). The windmill-type fine screen (4) is fixedly supported inside the equalization tank (1) by a rotating shaft (5). A submersible sewage pump (6) is provided inside the equalization tank (1). The right side of the submersible sewage pump (6) is fixedly connected to an anaerobic tank (7). An anaerobic tank (7) is provided with a submersible mixer (8) fixedly connected to the upper surface of the anaerobic tank (7). The submersible mixer (8) penetrates the biological packing frame (9). The biological packing frame (9) is fixedly connected to the upper surface of the anaerobic tank (7) by a stainless steel bracket (10). A first submersible pump (11) is provided in the anaerobic tank (7). The right side of the first submersible pump (11) is fixedly connected to an aerobic tank (12). Multiple membrane bioreactors (13) are fixedly connected to the upper surface of the aerobic tank (12). An aerator (14) is provided below the membrane bioreactors (13). A second submersible pump (15) is provided in the aerobic tank (12). The right side of the second submersible pump (15) is fixedly connected to a sand filter tank (16). A sand filter tank (16) is provided with a double-layer filter (17) inside the sand filter tank (16). The sand filter tank (16) is fixedly connected to an adsorption tank (18) below. An activated carbon filter (19) is provided inside the adsorption tank (18). A disinfection pool (20) is fixedly connected to the right side of the adsorption tank (18). Multiple ultraviolet lamps (21) are provided inside the disinfection pool (20).

2. The integrated wastewater treatment system according to claim 1, characterized in that, The rotating shaft (5) is equipped with a drive motor (22), and the output end of the drive motor (22) is fixedly connected to the stainless steel mesh plate (23).

3. The integrated wastewater treatment system according to claim 1, characterized in that, The output end of the submersible mixer (8) is fixedly connected to a stirring blade (24).

4. The integrated wastewater treatment system according to claim 1, characterized in that, The membrane bioreactor (13) is equipped with multiple hollow fiber membranes (25).

5. The integrated sewage treatment system according to claim 1, characterized in that, The aerator (14) is provided with an aeration disc (26) and an air-walking pipe (27), and the aeration disc (26) is provided with multiple micro-holes.

6. The integrated sewage treatment system according to claim 1, characterized in that, The double-layer filter (17) has a quartz sand upper layer and an anthracite lower layer.

7. The integrated wastewater treatment system according to claim 1, characterized in that, The ultraviolet lamp (21) is fixedly connected to the disinfection pool (20) by a stainless steel frame (28).

8. The integrated wastewater treatment system according to claim 1, characterized in that, The disinfection pool (20) has an outlet (29) on its right side.

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