Sewage treatment tank

Abstract

The utility model relates to a sewage treatment tank which is of a tank body structure and is divided into a grating well, a water collection and oil separation tank, a regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank, an MBR (Membrane Bioreactor) tank, a clear water disinfection tank, a reuse water storage tank and a sludge tank by partition walls, the grating well is provided with a first lifting pump which is connected with the adjusting tank; the water-collecting and oil-separating tank is connected with the regulating tank through the electrolytic flotation machine, and the electrolytic flotation machine is also connected with the sludge tank; the regulating tank is provided with a second lifting pump; the second lifting pump is connected with the anaerobic tank; the anaerobic tank is provided with a first water outlet communicated with the anoxic tank, the anoxic tank is provided with a second water outlet communicated with the aerobic tank, and the aerobic tank is connected with the MBR tank; the MBR tank is communicated with the disinfection tank; the disinfection tank is connected with the backwater reservoir; both the aerobic tank and the MBR tank are externally connected with a biochemical fan; the regulating tank is externally connected with a regulating tank fan; the MBR tank is connected with the anoxic tank; the MBR tank is connected with a sludge tank, and the sludge tank is externally connected with a filter press.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage treatment tank. Background Art

[0002] During the process of mine exploitation, a small amount of industrial wastewater is generated. In the production and living process of mining workers, domestic sewage is inevitably produced. The existing sewage treatment systems are all single industrial wastewater treatment systems or domestic sewage treatment systems, which makes it inconvenient to use and requires separate treatment. Content of the Utility Model

[0003] To solve the above problems, the purpose of the utility model is to provide a sewage treatment tank. Domestic sewage can enter the regulating tank through the grid well, and industrial wastewater can enter the regulating tank after being treated in the water collection and oil separation tank. Domestic sewage and industrial wastewater enter the regulating tank after being treated respectively, and then enter the subsequent sewage treatment process.

[0004] A sewage treatment tank of the utility model, the sewage treatment tank is of a tank body structure, and the sewage treatment tank is divided into a grid well, a water collection and oil separation tank, a regulating tank, an anaerobic tank, an anoxic tank, an aerobic tank, an MBR tank, a clean water disinfection tank, a reuse water storage tank and a sludge tank by partition walls;

[0005] A first lift pump is arranged in the grid well, and the first lift pump is connected to the regulating tank through a first sewage pipe; the water collection and oil separation tank is connected to the regulating tank through an electrolytic air flotation machine, and the electrolytic air flotation machine is also connected to the sludge tank; a second lift pump is arranged in the regulating tank, and the second lift pump is connected to the anaerobic tank through a second sewage pipe; the anaerobic tank is provided with a first water outlet communicating with the anoxic tank, the anoxic tank is provided with a second water outlet communicating with the aerobic tank, and the aerobic tank is connected to the MBR tank; the MBR tank is communicated with the disinfection tank through a self-priming pump arranged in the MBR tank; the disinfection tank is connected to the return water storage tank; both the aerobic tank and the MBR tank are externally connected with a biochemical air blower; the regulating tank is externally connected with a regulating tank air blower; the MBR tank is connected to the anoxic tank through a first reflux pump; the MBR tank is connected to the sludge tank through a second reflux pump, and a filter press is externally connected to the sludge tank.

[0006] Furthermore, a chemical dosing device is arranged above both the water collection and oil separation tank and the disinfection tank.

[0007] Furthermore, the chemical dosing device includes a support frame and a chemical dosing tank arranged on the support frame. The support frame is erected above the water collection and oil separation tank or the disinfection tank; the chemical dosing tank is provided with a stirring mechanism, a chemical dosing port is arranged at the top of the chemical dosing tank, a liquid outlet is arranged at the bottom, and the liquid outlet is connected to a liquid outlet valve; the chemical dosing tank is provided with a first liquid level gauge, and the chemical dosing tank is communicated with a water tank.

[0008] Further, a detachable plug is provided at the chemical dosing port; a second liquid level gauge is provided in the water tank.

[0009] Further, the stirring mechanism includes a motor and a stirring shaft; the stirring shaft is arranged in the chemical dosing tank, the motor is arranged at the top of the chemical dosing tank; the rotating shaft of the motor is connected to the stirring shaft.

[0010] Further, a ladder is provided in the MBR tank; steps are provided on one side of the sewage treatment tank.

[0011] Further, a fence is provided around the sewage treatment tank, a fence door is hinged to the fence, and a lock is provided on the fence door; a guardrail is provided on the partition wall.

[0012] Advantages of the present utility model:

[0013] In the sewage treatment tank of the present utility model, a water collection and oil separation tank is provided. The water collection and oil separation tank can treat industrial sewage, and after being treated by an electrolytic air flotation machine, it enters the regulation tank; domestic sewage is treated by a grid well and then enters the regulation tank, and then the sewage is treated according to a unified treatment process. Description of the drawings

[0014] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic diagram of the pool structure of the present utility model;

[0016] Figure 2 It is a treatment flow chart of the sewage treatment tank of the present utility model.

[0017] Description of reference numerals

[0018] 1. Grid well, 2. Regulation tank, 3. Anaerobic tank, 4. Anoxic tank, 5. Aerobic tank, 6. MBR tank, 7. Disinfection tank, 8. Reuse water storage tank, 9. Sludge tank, 10. Water collection and oil separation tank, 11. Electrolytic air flotation machine, 12. Filter press, 13. Regulation tank blower, 14. Biochemical blower, 15. Chemical dosing device, 16. Steps. Specific embodiments

[0019] The technical solutions in the embodiments of the present utility model will be described clearly and completely below. In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0020] The purpose of the present utility model is to provide a sewage treatment tank. Domestic sewage can enter the regulating tank through the grid well, and industrial wastewater can enter the regulating tank after being treated in the water collection and oil separation tank. Domestic sewage and industrial wastewater enter the regulating tank after being treated respectively, and then enter the subsequent sewage treatment process.

[0021] A sewage treatment tank of the present utility model, the sewage treatment tank is a tank body structure. Specifically, a rectangular parallelepiped tank body can be dug. After the edge of the tank body is brick-built, it is plastered with cement. Then partition walls are built, and the tank body is divided into a grid well 1, a water collection and oil separation tank 10, a regulating tank 2, an anaerobic tank 3, an anoxic tank 4, an aerobic tank 5, an MBR tank 6, a disinfection tank 7, a return water storage tank 8, and a sludge tank 9 by the partition walls, as Figure 1 shown. To ensure safety, fences can be set around the tank body and guardrails can be set on the partition walls. Fence doors can be opened on the fences as needed. One end of the fence door is hinged on the fence, and the other end is provided with a lock. A step 16 is provided on one side of the sewage treatment tank.

[0022] The grid well 1 is used to remove large particle suspended garbage in the domestic sewage in the mining area. A first lift pump is arranged in the grid well 1. A first sewage pipe is arranged on the first lift pump, and the first sewage pipe is connected to the regulating tank 2 to discharge the domestic sewage treated in the grid well 1 into the regulating tank 2.

[0023] The water collection and oil separation tank 10 is used to treat the industrial wastewater in the mining area. A medicament adding device 15 is used to add medicaments into the water collection and oil separation tank 10 to treat the industrial wastewater. Then it is treated by an electrolytic air flotation machine 11, and the treated industrial wastewater is discharged into the regulating tank 2. The sludge generated by the electrolytic air flotation machine 11 can be introduced into the sludge tank 9.

[0024] The regulating tank 2 is used to equalize the water volume and water quality. As needed, a stirring device (the stirring device can adopt the existing one) can be selectively arranged in the regulating tank 2. The stirring device can prevent suspended substances from precipitating in the regulating tank 2. A second lift pump is arranged in the regulating tank 2. A second sewage pipe is arranged on the second lift pump, and the second sewage pipe is connected to the anaerobic tank 3. In this way, the sewage in the regulating tank 2 is pumped into the anaerobic tank 3 by the second lift pump. The regulating tank 2 is externally connected to a regulating tank blower 13, so that air can be delivered to the regulating tank 2.

[0025] The anaerobic tank 3 has a first water outlet communicating with the anoxic tank 4; a valve switch is provided at the first water outlet. The anoxic tank 4 has a certain function of removing organic matter, reducing the organic load of the subsequent aerobic tank 5 to facilitate nitrification, and relying on the high-concentration organic matter in the sewage to complete denitrification, ultimately eliminating the eutrophication pollution of nitrogen. The anoxic tank 4 is provided with a second water outlet communicating with the aerobic tank 5, and a valve switch is provided at the second water outlet.

[0026] The aerobic tank 5 is connected to the MBR tank 6. The MBR tank 6 is provided with a self-priming pump, and the self-priming pump is communicated with the disinfection tank 7. The MBR tank 6 is connected to the anoxic tank 4 through a first reflux pump. The first reflux pump provides reflux sludge for the anoxic tank 4 to ensure that there is enough sludge concentration in the anoxic tank 4. The MBR tank 6 is connected to the sludge tank 9 through a second reflux pump to transport the sludge into the sludge tank 9. The MBR tank 6 is also externally connected to a biochemical air blower 14; the biochemical air blower 14 conveys air to the MBR tank 6, which can promote the circulation of the fluid and improve the degradation efficiency of the activated sludge. The MBR tank 6 is provided with a ladder. The setting inside the MBR tank 6 can adopt an existing MBR system.

[0027] The disinfection tank 7 is connected to the return water storage tank 8, as Figure 2 shown. A chemical dosing device 15 is also erected on the disinfection tank 7. According to needs, drugs are added to the disinfection tank 7 through the chemical dosing device 15. In actual use, the chemical dosing device 15 can also be set above other tanks according to needs.

[0028] The chemical dosing device 15 includes a support frame and a chemical dosing tank. The support frame is erected on the tank body at the edge of the disinfection tank 7 or the oil separation and water collection tank 2, and the chemical dosing tank is arranged on the support frame. A chemical dosing port is arranged on the side of the top of the chemical dosing tank, and a liquid outlet is arranged at the bottom. The liquid outlet is connected to a liquid outlet valve, and the addition of drugs into the disinfection tank 7 is realized by controlling the liquid outlet valve. The chemical dosing tank is communicated with a water tank. Both the chemical dosing tank and the water tank are provided with liquid level gauges. The chemical dosing port is provided with a detachable plug. The stirring mechanism includes a motor and a stirring shaft; the stirring shaft is arranged inside the chemical dosing tank, blades can be arranged on the stirring shaft, the motor is arranged at the center position of the top of the chemical dosing tank, and the rotating shaft of the motor passes through the chemical dosing tank and is connected to the stirring shaft.

[0029] The aerobic tank 5 is externally connected to a biochemical air blower 14. The biochemical air blower 14 provides compressed air for the aerobic tank 5 to ensure that the dissolved oxygen in the aerobic tank 5 is maintained above 2 mg / L, and the organic matter is further degraded by aerobic microorganisms, and the organic matter in the sewage is completely oxidized under the action of the aerobic biofilm.

[0030] The sludge tank 9 is externally connected to a filter press 12, and the sludge can be dehydrated into dry sludge through the filter press 12 and then transported out for treatment.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

Claims

1. A sewage treatment tank, characterized in that, The sewage treatment tank is of a tank structure and is divided by partition walls into a grille well, a water collection and oil separation tank, an adjustment tank, an anaerobic tank, an anoxic tank, an aerobic tank, an MBR tank, a clean water disinfection tank, a reuse water storage tank, and a sludge tank; A first lift pump is installed in the grille well, and the first lift pump is connected to the adjustment tank through a first sewage pipe; the water collection and oil separation tank is connected to the adjustment tank through an electrolytic flotation machine, and the electrolytic flotation machine is also connected to the sludge tank; a second lift pump is installed in the adjustment tank, and the second lift pump is connected to the anaerobic tank through a second sewage pipe; the anaerobic tank is provided with a first water outlet communicating with the anoxic tank, the anoxic tank is provided with a second water outlet communicating with the aerobic tank, and the aerobic tank is connected to the MBR tank; the MBR tank is communicated with the disinfection tank through a self-priming pump installed in the MBR tank; the disinfection tank is connected to the return water storage tank; both the aerobic tank and the MBR tank are externally connected to a biochemical air blower; the adjustment tank is externally connected to an adjustment tank air blower; the MBR tank is connected to the anoxic tank through a first reflux pump; the MBR tank is connected to the sludge tank through a second reflux pump, and the sludge tank is externally connected to a filter press.

2. A sewage treatment tank according to claim 1, characterized in that, A chemical dosing device is arranged above both the water collection and oil separation tank and the disinfection tank.

3. A sewage treatment tank according to claim 2, characterized in that, The chemical dosing device includes a support frame and a chemical dosing tank arranged on the support frame, and the support frame is erected above the water collection and oil separation tank or the disinfection tank; the chemical dosing tank is provided with a stirring mechanism, the top of the chemical dosing tank is provided with a chemical dosing port, the bottom is provided with a liquid outlet, and the liquid outlet is connected to a liquid outlet valve; the chemical dosing tank is provided with a first liquid level gauge, and the chemical dosing tank is communicated with a water tank.

4. A sewage treatment tank according to claim 3, characterized in that, The chemical dosing port is provided with a detachable plug; the water tank is provided with a second liquid level gauge.

5. A sewage treatment tank according to claim 3, characterized in that, The stirring mechanism includes a motor and a stirring shaft; the stirring shaft is arranged in the chemical dosing tank, and the motor is arranged on the top of the chemical dosing tank; the rotating shaft of the motor is connected to the stirring shaft.

6. A sewage treatment tank according to claim 1, characterized in that, The MBR tank is provided with a ladder; steps are arranged on one side of the sewage treatment tank.

7. A sewage treatment tank according to claim 1, characterized in that, The sewage treatment tank is provided with a fence, the fence is hinged with a fence door, and the fence door is provided with a lock; the partition wall is provided with a guardrail.

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