Integrated sewage treatment device

Abstract

The utility model provides an integrated sewage treatment device which at least comprises an equipment box body, the equipment box body internally comprises a filter tank, an anoxic tank, an aerobic tank and a sedimentation tank which are separated from one another, sequentially arranged in the water flow direction and sequentially communicated, and a water inlet and a water outlet are formed in the positions, located at the filter tank and the sedimentation tank, of the equipment box body respectively; a filter basket is arranged in the filter tank, and an outlet of a water inlet pipeline arranged at the water inlet is positioned above the filter basket; an air pump is arranged outside the equipment box body, the anoxic tank and the aerobic tank are respectively connected with the air pump through an anoxic aeration pipe and an aerobic aeration pipe, and the air pump works, so that air enters the anoxic zone and the aerobic zone through the anoxic aeration pipe and the aerobic aeration pipe, and oxygen is provided for the anoxic zone and the aerobic zone. The sewage treatment device is high in sewage treatment efficiency, good in effect, capable of ensuring the effluent quality, capable of achieving self-supply of energy, energy-saving, environment-friendly and low in operation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment equipment, in particular to an integrated sewage treatment device. Background Art

[0002] In order to improve the quality of rural environment and ensure the safety of groundwater, it is imperative to promote the treatment of rural domestic sewage. However, there are many villages in rural areas, and the population is scattered. The cost of building a sewage collection network is high, so it is necessary to provide a device suitable for rural domestic sewage treatment. At present, there are many devices for rural domestic sewage treatment. For example, patent CN117843196A discloses a new energy rural sewage treatment integrated equipment, including a sewage treatment box and a photovoltaic power supply device. The sewage treatment box includes a filter tank, a biological treatment tank and a sedimentation tank arranged in the order of sewage flow. The filter tank is used to filter out large particles of impurities in the sewage. The biological treatment tank is provided with a biofilm component for nitrification of the sewage. A dosing box is provided on the top of the sedimentation tank. The dosing box is used to mix the agent and water and then add the agent to the sedimentation tank, thereby improving the sewage treatment effect in the sedimentation tank. In addition, patent CN117886447A discloses a novel rural domestic sewage treatment method, in which domestic sewage is collected and flows into a regulating tank, the elevation of which is higher than that of anoxic tank, and the sewage in the regulating tank can flow into the anoxic tank by gravity; an air lift pump is provided in the anoxic tank, and the air lift pump lifts the sewage to a tubular aerobic biofilter for reprocessing, and the sewage treated by the tubular aerobic biofilter mainly flows to a sedimentation tank for mud-water separation; the sewage in the sedimentation tank is separated from mud and water, the supernatant is discharged, and part of the sludge is returned to the anoxic tank, and the rest is lifted to the sludge drying filter tank by an air pressure lift pump. At present, the structures of these sewage treatment equipments are different, but in general, it is desirable to provide an integrated sewage treatment device that is energy-saving and environmentally friendly, saves land resources, reduces operating costs, and improves treatment efficiency. Summary of the invention

[0003] The utility model provides an integrated sewage treatment device, which has high sewage treatment efficiency and good effect, ensures effluent water quality, realizes self-supply of energy, saves energy and is environmentally friendly, and has low operating costs.

[0004] The technical solution adopted to achieve the above-mentioned purpose of the utility model is:

[0005] An integrated sewage treatment device comprises at least an equipment box, wherein the equipment box comprises a filter tank, an anoxic tank, an aerobic tank and a sedimentation tank which are separated and arranged in sequence according to the water flow direction and are connected in sequence, wherein the equipment box is respectively provided with a water inlet and a water outlet at the filter tank and the sedimentation tank; a filter basket is arranged in the filter tank, and the outlet of the water inlet pipeline arranged at the water inlet is located above the filter basket; an air pump is arranged outside the equipment box, and the anoxic tank and the aerobic tank are connected to the air pump through anoxic aeration pipe and aerobic aeration pipe respectively, and when the air pump is working, air enters the anoxic zone and the aerobic zone through the anoxic aeration pipe and the aerobic aeration pipe, thereby providing oxygen for the anoxic zone and the aerobic zone.

[0006] The bottoms of the filtering pool, the anoxic pool, the aerobic pool and the sedimentation pool are connected in sequence, and the end of the anoxic aeration pipe away from the air pump is arranged at the bottom of the filtering pool and the anoxic pool to aerate the bottoms of the filtering pool and the anoxic pool.

[0007] A biofilm assembly is arranged at the bottom of the aerobic pool, and one end of the aerobic aeration pipe away from the air pump is connected to the biofilm assembly to perform nitrification treatment on the sewage.

[0008] The biofilm assembly is connected with a nitrification liquid reflux pipe, the other end of which extends to the filter tank. A nitrification liquid gas lift pipe is connected between the aerobic aeration pipe and the nitrification liquid reflux pipe. A valve is arranged on the nitrification liquid gas lift pipe to allow the nitrification liquid to reflux into the filter tank.

[0009] A sludge return pipe is arranged at the bottom of the aerobic tank, and the other end of the sludge return pipe extends to the filter tank. A sludge lift pipe is connected between the aerobic aeration pipe and the sludge return pipe. A valve is arranged on the sludge lift pipe to return the sludge at the bottom of the aerobic tank to the filter tank.

[0010] The sedimentation tank is equipped with an inclined tube filler, and the water outlet is located on the side wall of the equipment box body away from the aerobic tank and close to the top, so that the water out of the sedimentation tank overflows.

[0011] The top of the equipment box is located at the filtering tank, the anoxic tank, the aerobic tank and the sedimentation tank, and is upwardly connected to an observation and maintenance well, and the top of the observation and maintenance well is provided with a well cover.

[0012] The water outlet of the water inlet pipeline is located at the observation and maintenance well above the filter pool, and the filter basket is also installed at the observation and maintenance well above the filter pool.

[0013] The air pump is connected to a solar power supply device, which includes a solar photovoltaic panel, a battery and an electric control box. The solar photovoltaic panel is connected to the battery, and the electric control box is connected to the battery and the air pump, so as to control the battery to supply power to the air pump.

[0014] The equipment box body is in the shape of a horizontal tank body as a whole, and a plurality of saddle-type supports are arranged at the bottom of the equipment box body, and the equipment box body is supported by the plurality of saddle-type supports.

[0015] Compared with the prior art, the technical solution provided by the utility model has the following advantages: (1) The integrated sewage treatment device provided by the utility model is provided with a filter tank, an anoxic tank, an aerobic tank and a sedimentation tank. After the domestic sewage enters the equipment box, it is filtered by a filter basket, and then subjected to two-stage anoxic treatment below the filter tank and in the anoxic tank, and then treated by a biofilm component in the aerobic zone, and finally discharged after being treated in a sedimentation tank. The sewage treatment effect is good and the effluent water quality is guaranteed.

[0016] (2) In the utility model, an air pump is used to provide oxygen to the anoxic zone and the aerobic zone, thereby improving the sewage treatment efficiency.

[0017] (3) The air pump in the sewage treatment device of the utility model is powered by a solar power supply device, which utilizes solar energy resources, saves energy and protects the environment. Moreover, during operation, it achieves self-sufficiency of energy, eliminates the need for manual operation, and reduces operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the integrated sewage treatment device in the utility model;

[0019] Figure 2 It is a top view of the integrated sewage treatment device in the utility model;

[0020] Figure 3 It is a side view of the integrated sewage treatment device in the utility model;

[0021] Figure 4 for Figure 1 Sectional view at EE in the middle;

[0022] Figure 5 for Figure 2 Cross-section at mid-GG;

[0023] Figure 6 for Figure 2 Cross-section at FF;

[0024] Figure 7 for Figure 1 Cross-section at the middle BB;

[0025] Figure 8 for Figure 1 Sectional view at CC;

[0026] Fig. 9 for Figure 1 Sectional view at DD in the middle;

[0027] Fig.10 This is a rear view of the integrated sewage treatment device in the utility model being connected to the solar power supply equipment;

[0028] Fig.11 It is a side view of the connection between the integrated sewage treatment device and the solar power supply equipment in the utility model;

[0029] In the figure: 1-equipment box, 2-saddle support, 3-filter tank anoxic tank, 4-anoxic tank, 5-aerobic tank, 6-sedimentation tank, 7-observation well, 8-well cover, 9-water inlet pipe, 10-filter basket, 11-water outlet, 12-anoxic aeration pipe, 13-aerobic aeration pipe, 14-biofilm assembly, 15-nitrification liquid reflux pipe, 16-nitrification liquid gas lift pipe, 17-sludge reflux pipe, 18-water outlet pipe, 19-inclined tube filler, 20-solar photovoltaic panel, 21-electric control box, 22-battery box, 23-mounting frame, 24-mounting platform, 25-sludge gas lift pipe. DETAILED DESCRIPTION

[0030] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The structure of the integrated sewage treatment device provided by the utility model is as follows Figure 1-Figure 3 As shown, it at least includes a device box 1. In this embodiment, the device box is in the shape of a horizontal tank as a whole. A plurality of saddle supports 2 are arranged at the bottom of the device box, and the device box is supported by the plurality of saddle supports to ensure the stability of the device box. Specifically, two saddle supports are arranged.

[0032] In this embodiment, the equipment box includes a filter tank 3, an anoxic tank 4, an aerobic tank 5 and a sedimentation tank 6 which are separated and arranged in sequence according to the water flow direction and connected in sequence. Specifically, the filter tank, the anoxic tank, the aerobic tank and the sedimentation tank are connected in sequence at the bottom. The equipment box is respectively provided with a water inlet and a water outlet 11 at the filter tank and the sedimentation tank. The sewage enters the filter tank through the water inlet, flows through the anoxic tank, the aerobic tank and the sedimentation tank, and then flows out from the water outlet.

[0033] In this embodiment, the top of the equipment box is located at the filtration tank, the anoxic tank, the aerobic tank and the sedimentation tank, all of which are connected upward with observation and maintenance wells 7. The tops of the observation and maintenance wells are provided with manhole covers 8 to prevent external rainwater and debris from entering the equipment box. At the same time, after removing the manhole covers, it is convenient to observe and inspect various areas in the equipment box.

[0034] An inlet pipe 9 is provided at the water inlet, a filter basket 10 is provided in the filter tank, and the outlet of the inlet pipe is located above the filter basket, so as to remove large particles of impurities in the sewage. Specifically, the outlet of the inlet pipe is located at the observation and inspection well above the filter tank, and the filter basket is also installed at the observation and inspection well above the filter tank, so as to facilitate regular cleaning and replacement of the filter basket. The integrated sewage treatment device provided in this embodiment can be buried underground, so as long as the inlet pipe is connected to the drainage pipe of rural domestic water, domestic sewage can flow into the treatment device by itself. If the integrated sewage treatment device is placed directly on the ground, if there is an elevation difference between the domestic sewage outlet and the water inlet, a water pump can be connected to the inlet pipe to realize the collection and treatment of domestic sewage.

[0035] In this embodiment, an air pump is arranged outside the equipment box, and the anoxic pool and the aerobic pool are connected to the air pump through the anoxic aeration pipe 12 and the aerobic aeration pipe 13 respectively. When the air pump works, air enters the anoxic zone and the aerobic zone through the anoxic aeration pipe and the aerobic aeration pipe, and oxygen is provided to the anoxic zone and the aerobic zone, thereby improving the sewage treatment efficiency and treatment effect. In actual setting, the aeration amount in the anoxic pool and the aerobic pool can be controlled by using anoxic aeration pipes and aerobic aeration pipes of different diameters. Specifically, the end of the anoxic aeration pipe away from the air pump is arranged at the bottom of the filter pool and the anoxic pool, and aeration is directed to the bottom of the filter pool and the anoxic pool.

[0036] In this embodiment, the air pump is connected to a solar power supply device, and the air pump is powered by the solar power supply device. The solar power supply device includes a solar photovoltaic panel 20, a battery and an electric control box 21. The solar photovoltaic panel is connected to the battery, and the electric control box is connected to the battery and the air pump, and the battery is controlled to power the air pump. Furthermore, the battery and the air pump are both arranged in a battery box 22 to protect the battery and the air pump. Preferably, the solar photovoltaic panel is obliquely installed on a mounting frame 23, and an installation platform is arranged below the mounting frame, and the electric control box and the battery box are placed on the installation platform 24.

[0037] In this embodiment, a biofilm assembly 14 is arranged at the bottom of the aerobic pool, and one end of the aerobic aeration pipe away from the air pump is connected to the biofilm assembly to nitrify the sewage. Specifically, a nitrification liquid return pipe 15 is connected to the biofilm assembly, and the other end of the nitrification liquid return pipe extends to the filter tank. A nitrification liquid gas lift pipe 16 is connected between the aerobic aeration pipe and the nitrification liquid return pipe, and a valve is provided on the nitrification liquid gas lift pipe to allow the nitrification liquid to flow back to the filter tank. Further, a sludge return pipe 17 is arranged at the bottom of the aerobic pool, and the other end of the sludge return pipe extends to the filter tank. A sludge gas lift pipe 25 is connected between the aerobic aeration pipe and the sludge return pipe, and a valve is provided on the sludge gas lift pipe to allow the sludge at the bottom of the aerobic pool to flow back to the filter tank. In order to ensure that the refluxed nitrification liquid and sludge are further decomposed in the filtration tank and the anoxic tank, the outlets of the nitrification liquid reflux pipe and the sludge reflux pipe in this embodiment are located above the filtration area and away from the bottom connection between the filtration area and the anoxic area. In order to facilitate the control of the gas flow in the nitrification liquid gas lift pipe and the sludge gas lift pipe, the valves on the nitrification liquid gas lift pipe and the sludge gas lift pipe are located at the observation and inspection well above the aerobic area.

[0038] In this embodiment, the water outlet of the biofilm assembly is connected to the bottom of the sedimentation tank through an outlet pipe 18, so that the treated sewage enters the sedimentation tank, and an inclined tube filler 19 is installed in the sedimentation tank to further remove impurities in the sewage. Specifically, the outlet is located on the side wall of the equipment box away from the aerobic tank and close to the top, so that the effluent of the sedimentation tank overflows.

[0039] After domestic sewage enters the equipment box, it is filtered through the filter basket, then undergoes two-stage anoxic treatment below the filter tank and in the anoxic tank, then is treated by the biofilm component in the aerobic zone, and finally is discharged after treatment in the sedimentation tank. The sewage treatment effect is good and the effluent water quality is good.

Claims

1. An integrated sewage treatment device, comprising at least an equipment box, characterized in that: The equipment box includes a filter tank, an anoxic tank, an aerobic tank and a sedimentation tank which are separated and arranged in sequence according to the water flow direction and connected in sequence. The equipment box is respectively provided with a water inlet and a water outlet at the filter tank and the sedimentation tank; a filter basket is arranged in the filter tank, and the outlet of the water inlet pipeline arranged at the water inlet is located above the filter basket; an air pump is arranged outside the equipment box, and the anoxic tank and the aerobic tank are respectively connected to the air pump through the anoxic aeration pipe and the aerobic aeration pipe. When the air pump works, air enters the anoxic zone and the aerobic zone through the anoxic aeration pipe and the aerobic aeration pipe, so as to provide oxygen for the anoxic zone and the aerobic zone.

2. The integrated sewage treatment device according to claim 1, characterized in that: The bottoms of the filtering pool, the anoxic pool, the aerobic pool and the sedimentation pool are connected in sequence, and the end of the anoxic aeration pipe away from the air pump is arranged at the bottom of the filtering pool and the anoxic pool to aerate the bottoms of the filtering pool and the anoxic pool.

3. The integrated sewage treatment device according to claim 1, characterized in that: A biofilm assembly is arranged at the bottom of the aerobic pool, and one end of the aerobic aeration pipe away from the air pump is connected to the biofilm assembly to perform nitrification treatment on the sewage.

4. The integrated sewage treatment device according to claim 3, characterized in that: The biofilm assembly is connected with a nitrification liquid reflux pipe, the other end of which extends to the filter tank. A nitrification liquid gas lift pipe is connected between the aerobic aeration pipe and the nitrification liquid reflux pipe. A valve is arranged on the nitrification liquid gas lift pipe to allow the nitrification liquid to reflux into the filter tank.

5. The integrated sewage treatment device according to claim 1, characterized in that: A sludge return pipe is arranged at the bottom of the aerobic tank, and the other end of the sludge return pipe extends to the filter tank. A sludge lift pipe is connected between the aerobic aeration pipe and the sludge return pipe. A valve is arranged on the sludge lift pipe to return the sludge at the bottom of the aerobic tank to the filter tank.

6. The integrated sewage treatment device according to claim 1, characterized in that: The sedimentation tank is equipped with an inclined tube filler, and the water outlet is located on the side wall of the equipment box body away from the aerobic tank and close to the top, so that the water out of the sedimentation tank overflows.

7. The integrated sewage treatment device according to claim 1, characterized in that: The top of the equipment box is located at the filtering tank, the anoxic tank, the aerobic tank and the sedimentation tank, and is upwardly connected to an observation and maintenance well, and the top of the observation and maintenance well is provided with a well cover.

8. The integrated sewage treatment device according to claim 7, characterized in that: The water outlet of the water inlet pipeline is located at the observation and maintenance well above the filter pool, and the filter basket is also installed at the observation and maintenance well above the filter pool.

9. The integrated sewage treatment device according to claim 1, characterized in that: The air pump is connected to a solar power supply device, which includes a solar photovoltaic panel, a battery and an electric control box. The solar photovoltaic panel is connected to the battery, and the electric control box is connected to the battery and the air pump, so as to control the battery to supply power to the air pump.

10. The integrated sewage treatment device according to claim 1, characterized in that: The equipment box body is in the shape of a horizontal tank body as a whole, and a plurality of saddle-type supports are arranged at the bottom of the equipment box body, and the equipment box body is supported by the plurality of saddle-type supports.

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