Sewage treatment device

Abstract

The utility model discloses a sewage treatment device, which relates to the technical field of environmental protection and comprises a water collecting tank, a precipitator, a bioreactor group and an anaerobic tank, the water collecting tank can store sewage, a water inlet of the precipitator is communicated with the water collecting tank, the precipitator can precipitate and layer the sewage, a water inlet of the bioreactor group is communicated with a water outlet of the precipitator, and a water outlet of the bioreactor group is communicated with the anaerobic tank. A water outlet of the bioreactor group is communicated with a water inlet of the anaerobic tank; the bioreactor group comprises at least two bioreactors, the bioreactors are sequentially connected in series, the water inlet of the bioreactor at the head end is the water inlet of the bioreactor group, and the water outlet of the bioreactor at the tail end is the water outlet of the bioreactor group; suspended filler is accommodated in the bioreactor, an aeration disc is fixedly arranged in the bioreactor, and oxygen-containing gas is aerated into the bioreactor by the aeration disc; a fixed filler is fixedly arranged in the anaerobic tank; according to the utility model, the process flow can be effectively simplified, the treatment effect is improved, and the treatment efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, and in particular to a sewage treatment device. Background Technology

[0002] Currently, environmental issues are receiving increasing attention. Under these circumstances, it is imperative to increase research and development efforts in wastewater treatment technologies to effectively control the pollution caused by wastewater discharge.

[0003] There are many existing wastewater treatment technologies, but most of them suffer from complex processes and poor treatment effects. Utility Model Content

[0004] The purpose of this invention is to provide a wastewater treatment device to solve the problems existing in the prior art, effectively simplify the process flow, improve the treatment effect, and increase the treatment efficiency.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a wastewater treatment device, including a collection tank, a sedimentation tank, a bioreactor group, and an anaerobic tank. The collection tank can store wastewater. The inlet of the sedimentation tank is connected to the collection tank, and the sedimentation tank can cause the wastewater to settle and stratify. The inlet of the bioreactor group is connected to the outlet of the sedimentation tank, and the outlet of the bioreactor group is connected to the inlet of the anaerobic tank. The bioreactor group includes at least two bioreactors connected in series. The inlet of the first bioreactor is the inlet of the bioreactor group, and the outlet of the last bioreactor is the outlet of the bioreactor group. The bioreactor contains suspended packing material, and an aeration disc is fixedly installed inside the bioreactor for introducing oxygen-containing gas into the bioreactor. The anaerobic tank contains fixed packing material.

[0007] Preferably, there are two bioreactors, namely a first bioreactor and a second bioreactor. The inlet of the first bioreactor is connected to the outlet of the sedimentation tank, the outlet of the first bioreactor is connected to the inlet of the second bioreactor, and the outlet of the second bioreactor is connected to the inlet of the anaerobic tank. The inlet of the first bioreactor is located on the upper part of the side wall of the first bioreactor, and the outlet of the first bioreactor is located on the lower part of the side wall of the first bioreactor. The inlet of the second bioreactor is located on the lower part of the side wall of the second bioreactor, and the outlet of the second bioreactor is located on the upper part of the side wall of the second bioreactor.

[0008] Preferably, it also includes a first water supply pipe, the water collection tank is placed below the sedimentation tank, the water collection tank is equipped with a submersible pump, one end of the first water supply pipe is fixedly connected to and communicates with the water outlet of the submersible pump, and the other end of the first water supply pipe is fixedly connected to and communicates with the water inlet of the sedimentation tank.

[0009] Preferably, the inlet of the sedimentation tank is located in the middle of the side wall of the sedimentation tank, and the outlet of the sedimentation tank is located in the upper part of the side wall of the sedimentation tank.

[0010] Preferably, it further includes a second water supply pipe, wherein the outlet of the sedimentation tank is located above the inlet of the first bioreactor, one end of the second water supply pipe is fixedly connected to and communicates with the outlet of the sedimentation tank, and the other end of the second water supply pipe is fixedly connected to and communicates with the inlet of the first bioreactor; the outlet of the second bioreactor is located above the inlet of the anaerobic tank.

[0011] Preferably, the second water supply pipe is equipped with a first valve and a flow meter, with the first valve positioned between the outlet of the sedimentation tank and the flow meter.

[0012] Preferably, it also includes an overflow pipe, and an overflow port is provided on the upper part of the side wall of the sedimentation tank. The overflow port is located above the outlet of the sedimentation tank. One end of the overflow pipe is fixedly connected to and communicates with the overflow port, and the other end of the overflow pipe extends into the water collection tank.

[0013] Preferably, it also includes a sludge outlet pipe, wherein a sludge outlet is provided at the bottom of the sedimentation tank, one end of the sludge outlet pipe is fixedly connected to and communicates with the sludge outlet, and the other end of the sludge outlet pipe is fixedly connected to and communicates with the water collection tank.

[0014] Preferably, the first water supply pipe is equipped with a second valve, and the sewage outlet pipe is equipped with a third valve.

[0015] Preferably, it also includes an air pump, the air outlet of which is connected to each of the aeration discs.

[0016] The present invention achieves the following technical advantages over the prior art:

[0017] The wastewater treatment device provided by this utility model includes a bioreactor containing suspended packing material with aerobic microorganisms for wastewater treatment attached to it, and an anaerobic tank containing fixed packing material with anaerobic microorganisms for wastewater treatment attached to it. Wastewater is stored in a collection tank and stratified by a sedimentation tank. The wastewater is treated stepwise by aerobic microorganisms through a series of bioreactors connected in series, and then by anaerobic microorganisms through the anaerobic tank. Finally, the treated wastewater meets the discharge standards. This device effectively simplifies the process, improves the treatment effect, and increases the treatment efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the wastewater treatment device provided by this utility model;

[0020] In the diagram: 1-Collection tank, 2-Sedimenter, 3-Anaerobic tank, 4-Aeration disc, 5-First bioreactor, 6-Second bioreactor, 7-First water supply pipe, 8-Submersible pump, 9-Second water supply pipe, 10-First valve, 11-Flow meter, 12-Overflow pipe, 13-Sewage outlet pipe, 14-Second valve, 15-Third valve, 16-Air pump. Detailed Implementation

[0021] 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.

[0022] The purpose of this invention is to provide a wastewater treatment device to solve the problems existing in the prior art, effectively simplify the process flow, improve the treatment effect, and increase the treatment efficiency.

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1As shown, this utility model provides a wastewater treatment device, including a collection tank 1, a sedimentation tank 2, a bioreactor group, and an anaerobic tank 3. The collection tank 1 can store wastewater. The inlet of the sedimentation tank 2 is connected to the collection tank 1, and the sedimentation tank 2 can cause the wastewater to settle and stratify. The inlet of the bioreactor group is connected to the outlet of the sedimentation tank 2, and the outlet of the bioreactor group is connected to the inlet of the anaerobic tank 3. The bioreactor group includes at least two bioreactors connected in series. The inlet of the first bioreactor is the inlet of the bioreactor group, and the outlet of the last bioreactor is the outlet of the bioreactor group. The inside of the bioreactor contains suspended packing material, and an aeration disc 4 is fixedly installed inside the bioreactor for introducing oxygen-containing gas into the inside of the bioreactor. The inside of the anaerobic tank 3 is fixedly installed with packing material.

[0025] The wastewater treatment device provided by this utility model includes a bioreactor containing suspended packing material with aerobic microorganisms for wastewater treatment attached to it, and an anaerobic tank 3 containing fixed packing material with anaerobic microorganisms for wastewater treatment attached to it. Wastewater is stored in a collection tank 1 and stratified by a sedimentation tank 2. The wastewater is treated stepwise by aerobic microorganisms through a series of bioreactors and by anaerobic microorganisms through the anaerobic tank 3. The treated wastewater is finally discharged in compliance with standards. This device effectively simplifies the process, improves the treatment effect, and increases the treatment efficiency.

[0026] In a preferred embodiment of this invention, there are two bioreactors, namely a first bioreactor 5 and a second bioreactor 6. The inlet of the first bioreactor 5 is connected to the outlet of the sedimentation tank 2, and the outlet of the first bioreactor 5 is connected to the inlet of the second bioreactor 6. The outlet of the second bioreactor 6 is connected to the inlet of the anaerobic tank 3. The inlet of the first bioreactor 5 is located on the upper part of the side wall of the first bioreactor 5, and the outlet of the first bioreactor 5 is located on the lower part of the side wall of the first bioreactor 5. The inlet of the second bioreactor 6 is located on the lower part of the side wall of the first bioreactor 5. The inlet is located at the lower part of the side wall of the second bioreactor 6, and the outlet is located at the upper part of the side wall of the second bioreactor 6. This effectively extends the flow path of wastewater within the first bioreactor 5 and the second bioreactor 6, allowing the wastewater to fully contact the aerobic microorganisms attached to the suspended packing material and improving the utilization rate of the aerobic microorganisms. It should be noted that the outlet of the first bioreactor 5 and the inlet of the second bioreactor 6 are connected and interconnected through conventional pipelines, and the outlet of the second bioreactor 6 is connected and interconnected with the inlet of the anaerobic tank 3 through conventional pipelines.

[0027] Furthermore, the wastewater treatment device provided by this utility model also includes a first water supply pipe 7, and the water collection tank 1 is placed below the sedimentation tank 2, which can reduce space occupation. A submersible pump 8 is provided in the water collection tank 1. One end of the first water supply pipe 7 is fixedly connected to and communicates with the outlet end of the submersible pump 8, and the other end of the first water supply pipe 7 is fixedly connected to and communicates with the inlet of the sedimentation tank 2, so as to facilitate the lifting of wastewater from the water collection tank 1 into the sedimentation tank 2.

[0028] Furthermore, the inlet of the sedimentation tank 2 is located in the middle of the side wall of the sedimentation tank 2, and the outlet of the sedimentation tank 2 is located in the upper part of the side wall of the sedimentation tank 2, so that the sewage can settle and stratify in the sedimentation tank 2.

[0029] Furthermore, the wastewater treatment device provided by this utility model also includes a second water supply pipe 9. The outlet of the sedimentation tank 2 is located above the inlet of the first bioreactor 5. One end of the second water supply pipe 9 is fixedly connected to and communicates with the outlet of the sedimentation tank 2, and the other end of the second water supply pipe 9 is fixedly connected to and communicates with the inlet of the first bioreactor 5, so that the wastewater can flow from the outlet of the sedimentation tank 2 to the inlet of the first bioreactor 5. The outlet of the second bioreactor 6 is located above the inlet of the anaerobic tank 3, so that the wastewater can flow from the outlet of the second bioreactor 6 to the inlet of the anaerobic tank 3.

[0030] Furthermore, the second water supply pipe 9 is equipped with a first valve 10 and a flow meter 11. The first valve 10 is placed between the outlet of the sedimentation tank 2 and the flow meter 11 to control the amount of water entering the first bioreactor 5.

[0031] Furthermore, the wastewater treatment device provided by this utility model also includes an overflow pipe 12. An overflow port is provided on the upper part of the side wall of the sedimentation tank 2. The overflow port is located above the outlet of the sedimentation tank 2. One end of the overflow pipe 12 is fixedly connected to and communicates with the overflow port. The other end of the overflow pipe 12 extends into the water collection tank 1 so that the scum on the surface of the sedimentation tank 2 can flow back into the water collection tank 1.

[0032] Furthermore, the wastewater treatment device provided by this utility model also includes a sewage outlet pipe 13. A sewage outlet is provided at the bottom of the sedimentation tank 2. One end of the sewage outlet pipe 13 is fixedly connected to and communicates with the sewage outlet, and the other end of the sewage outlet pipe 13 is fixedly connected to and communicates with the water collection tank 1, so as to discharge the bottom sediment in the sedimentation tank 2 into the water collection tank 1.

[0033] Furthermore, a second valve 14 is provided on the first water supply pipe 7 to control the opening and closing of the first water supply pipe 7, and a third valve 15 is provided on the sewage outlet pipe 13 to control the opening and closing of the sewage outlet pipe 13.

[0034] Furthermore, the wastewater treatment device provided by this utility model also includes an air pump 16, the air outlet of which is connected to each aeration disc 4, so as to introduce sufficient oxygen-containing gas into the interior of the bioreactor; it should be noted that the oxygen-containing gas refers to oxygen or a gas mixed with oxygen, and the air outlet of the air pump 16 is connected to each aeration disc 4 through conventional pipelines.

[0035] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A wastewater treatment device, characterized in that: The system includes a collection tank, a sedimentation tank, a bioreactor assembly, and an anaerobic tank. The collection tank stores wastewater. The inlet of the sedimentation tank is connected to the collection tank, and the sedimentation tank allows the wastewater to settle and stratify. The inlet of the bioreactor assembly is connected to the outlet of the sedimentation tank, and the outlet of the bioreactor assembly is connected to the inlet of the anaerobic tank. The bioreactor assembly includes at least two bioreactors connected in series. The inlet of the first bioreactor is the inlet of the entire bioreactor assembly, and the outlet of the last bioreactor is the outlet of the entire bioreactor assembly. The bioreactors contain suspended packing material and are equipped with aeration discs for introducing oxygen-containing gas into the bioreactors. The anaerobic tank is equipped with fixed packing material.

2. The wastewater treatment device according to claim 1, characterized in that: The number of bioreactors is two, namely a first bioreactor and a second bioreactor. The inlet of the first bioreactor is connected to the outlet of the sedimentation tank, the outlet of the first bioreactor is connected to the inlet of the second bioreactor, and the outlet of the second bioreactor is connected to the inlet of the anaerobic tank. The inlet of the first bioreactor is located on the upper part of the side wall of the first bioreactor, and the outlet of the first bioreactor is located on the lower part of the side wall of the first bioreactor. The inlet of the second bioreactor is located on the lower part of the side wall of the second bioreactor, and the outlet of the second bioreactor is located on the upper part of the side wall of the second bioreactor.

3. The wastewater treatment device according to claim 2, characterized in that: It also includes a first water supply pipe, the water collection tank is placed below the sedimentation tank, the water collection tank is equipped with a submersible pump, one end of the first water supply pipe is fixedly connected to and communicates with the water outlet of the submersible pump, and the other end of the first water supply pipe is fixedly connected to and communicates with the water inlet of the sedimentation tank.

4. The wastewater treatment device according to claim 3, characterized in that: The inlet of the sedimentation tank is located in the middle of the side wall of the sedimentation tank, and the outlet of the sedimentation tank is located in the upper part of the side wall of the sedimentation tank.

5. The wastewater treatment device according to claim 4, characterized in that: It also includes a second water supply pipe, with the outlet of the sedimentation tank positioned above the inlet of the first bioreactor. One end of the second water supply pipe is fixedly connected to and communicates with the outlet of the sedimentation tank, and the other end of the second water supply pipe is fixedly connected to and communicates with the inlet of the first bioreactor. The outlet of the second bioreactor is positioned above the inlet of the anaerobic tank.

6. The wastewater treatment device according to claim 5, characterized in that: The second water supply pipe is equipped with a first valve and a flow meter, with the first valve positioned between the outlet of the sedimentation tank and the flow meter.

7. The wastewater treatment device according to claim 4, characterized in that: It also includes an overflow pipe, and an overflow port is provided on the upper part of the side wall of the sedimentation tank. The overflow port is located above the outlet of the sedimentation tank. One end of the overflow pipe is fixedly connected to and communicates with the overflow port, and the other end of the overflow pipe extends into the water collection tank.

8. The wastewater treatment device according to claim 4, characterized in that: It also includes a sludge outlet pipe. The bottom of the sedimentation tank has a sludge outlet. One end of the sludge outlet pipe is fixedly connected to and communicates with the sludge outlet, and the other end of the sludge outlet pipe is fixedly connected to and communicates with the water collection tank.

9. The wastewater treatment device according to claim 8, characterized in that: The first water supply pipe is equipped with a second valve, and the sewage outlet pipe is equipped with a third valve.

10. The wastewater treatment device according to claim 1, characterized in that: It also includes an air pump, the air outlet of which is connected to each of the aeration discs.

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