Sewage treatment and purification device

Abstract

The utility model discloses a sewage treatment purification device which comprises a sewage purification treatment pond and a photovoltaic power generation device, a sealing cover is arranged at the upper end of the sewage purification treatment pond, a plurality of partitions are arranged in the sewage purification treatment pond to sequentially form an anaerobic zone, an anoxic zone, an aerobic zone and a settling zone, the anaerobic zone is connected with a sewage inlet pipe, and the anoxic zone is connected with a sewage outlet pipe. A water inlet of the anaerobic zone is provided with a filtering device, the anoxic zone and the aerobic zone are respectively provided with a composite biological filtering filler layer, the aerobic zone is internally provided with an aeration pipe outwards extending out of the sewage purification treatment pond, the air inlet end of the aeration pipe is connected with a fan, the fan is electrically connected with a photovoltaic power generation device, a return pipe is further connected between the anoxic zone and the aerobic zone, and the return pipe is connected with a water inlet of the anoxic zone. The backflow pipe is connected with the aeration pipe through a branch pipe, the pipe diameter of the backflow pipe is larger than that of the branch pipe, the branch pipe extends into the backflow pipe and is opened upwards to form a gas stripping structure, and a water outlet is formed in the upper end of the settling zone. The device is simple in structure, low in cost and good in treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment and processing, and specifically to a wastewater treatment and purification device. Background Technology

[0002] In rural wastewater treatment environmental protection facilities, the aeration equipment typically uses AC mains power, which has significant drawbacks. Firstly, it wastes power. Secondly, obtaining power sources is difficult, as rivers are often far from power supply points. Furthermore, due to the dispersed distribution of rural domestic sewage, it is difficult to treat it centrally on a large scale. Various integrated wastewater treatment systems available on the market are generally suitable for large-scale wastewater treatment plants and cannot address the problem of the dispersed nature of rural domestic sewage. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a wastewater treatment and purification device that is simple in structure, low in cost, and suitable for decentralized wastewater treatment in rural areas.

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

[0005] A wastewater treatment and purification device includes a wastewater purification tank and a photovoltaic power generation device. The wastewater purification tank has a sealed cover at its upper end. The tank contains multiple partitions that sequentially form an anaerobic zone, an anoxic zone, an aerobic zone, and a sedimentation zone. The anaerobic zone is connected to a wastewater inlet pipe, and its inlet is equipped with a filter device. Guide holes are provided at the upper ends of the anaerobic, anoxic, and aerobic zones, with the guide holes in the anaerobic zone being higher than those in the anoxic zone, and vice versa. Both the anoxic and aerobic zones are equipped with composite biological filter media. material The aerobic zone is equipped with an aeration pipe extending outward into the wastewater purification treatment tank. The air inlet of the aeration pipe is connected to a blower, which is electrically connected to the photovoltaic power generation device. A return pipe is also connected between the anoxic zone and the aerobic zone. The return pipe is connected to the aeration pipe through a branch pipe. The diameter of the return pipe is larger than that of the branch pipe. The branch pipe extends into the return pipe and opens upward to form an air-lift structure. A drain outlet is provided at the upper end of the sedimentation zone.

[0006] Furthermore, it also includes a control box, the side wall of which has ventilation holes. The control box has a control area and an equipment installation area. The fan is located in the equipment installation area. The inverter and the control panel are located in the control area. The photovoltaic power generation device is electrically connected to the inverter via wires. The inverter is electrically connected to the control panel. The control panel is electrically connected to the fan.

[0007] Further, the control box is provided with a cooling fan, and the cooling fan is electrically connected with the control panel.

[0008] Further, the photovoltaic power generation device comprises a photovoltaic support frame, a photovoltaic panel and a lightning rod are arranged on the photovoltaic support frame, and the photovoltaic panel is electrically connected with the storage battery through a wire.

[0009] Further, the column of the photovoltaic support frame is an octagonal pyramid rod, and the lower end of the column is connected with a pre-buried ground cage through a column foot flange.

[0010] Further, the column lower end of the photovoltaic support frame is provided with an inspection hole, and the inspection hole is provided with an inspection door.

[0011] Further, the filter device comprises a detachable filter cylinder and filter filling material, the filter filling material is arranged in the detachable filter cylinder, the detachable filter cylinder is composed of upper and lower end covers and two large and small circular arc segments, a plurality of filter holes are arranged on the end covers and the large and small circular arc segments, the upper and lower end covers are fixed on the large circular arc segment, one side of the small circular arc segment is hinged to the large circular arc segment, and the other side is movably fixed to the large circular arc segment through a bolt.

[0012] Further, the upper end of the composite biological filter filling material layer is provided with a blocking net.

[0013] Further, the sealing cover is provided with a manhole.

[0014] The above technical scheme has the following beneficial effects:

[0015] The utility model discloses a simple structure, set up a sewage purification treatment pool, and the sewage purification treatment pool forms anaerobic zone, anoxic zone, aerobic zone and sedimentation zone in proper order through partition, wherein the aeration pipe of aerobic zone is connected with fan, and the fan is powered by photovoltaic power generation device, thereby solving the problem that the fan is powered by long-distance commercial power, and the photovoltaic power supply clean energy power generation.

[0016] Further, the control box is provided with a control area and a device installation area, a ventilation hole is formed in the side wall of the control box to form convection, and the internal temperature is prevented from affecting the use of electrical equipment.

[0017] The photovoltaic power generation device comprises a photovoltaic support frame, a photovoltaic panel and a lightning rod are arranged on the photovoltaic support frame, and the photovoltaic panel is electrically connected with the storage battery through a wire, and the lightning rod can prevent damage to the equipment caused by lightning.

[0018] The photovoltaic support frame is provided with an inspection hole at the lower end of the column, and the inspection hole is provided with an inspection door, so as to facilitate observation and maintenance of the photovoltaic power generation device.

[0019] The filter device comprises a detachable filter cartridge and filter filling material, the filter filling material is arranged in the detachable filter cartridge, the detachable filter cartridge is composed of upper and lower end covers and two circular arc segments, the upper and lower end covers are fixed on the large circular arc segment, one side of the small circular arc segment is hinged on the large circular arc segment, and the other side is movably fixed on the large circular arc segment by a bolt. After a period of filtration, the filter filling material of the filter device can be cleaned and replaced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 It is a structural schematic diagram of embodiment 1.

[0021] Fig. 2 It is a structural schematic diagram of the sewage evolution tank in embodiment 1.

[0022] Fig. 3 It is Fig. 2 It is an enlarged schematic diagram of A in Fig.

[0023] In the drawings, 1 is a lightning rod, 2 is a photovoltaic panel, 3 is a column, 4 is an inspection door, 5 is a column foot flange, 6 is a storage battery, 7 is a control box, 8 is a grounding wire, 9 is a sewage purification treatment tank, 9-1 is an anaerobic zone, 9-2 is an anoxic zone, 9-3 is an aerobic zone, 9-4 is a sedimentation zone, 10 is a composite biological filter filling material layer, 11 is a filter device, 12 is an aeration pipe, 12-1 is a branch pipe, 13 is a screen, 14 is a backflow pipe, 15 is a sewage inlet pipe, and 16 is a drainage pipe. DETAILED DESCRIPTION Embodiment 1:

[0025] Referring to Figs. 1 to 3As shown, a sewage treatment and purification device comprises a sewage purification treatment tank 9, a control box and a photovoltaic power generation device, the upper end of the sewage purification treatment tank is provided with a sealing cover, the sealing cover is provided with a manhole, and the manhole is convenient for observation. The sewage purification treatment tank is in an inverted ladder-shaped structure with a large upper end and a small lower end, a plurality of partitions are arranged in the sewage purification treatment tank, and an anaerobic zone 9-1, an anoxic zone 9-2, an aerobic zone 9-3 and a sedimentation zone 9-4 are sequentially formed, the anaerobic zone is connected with a sewage inlet pipe 15, a filter device 11 is arranged at the water inlet of the anaerobic zone, and the filter device may comprise a detachable filter cylinder and filter fillers, the filter fillers are selected according to the water quality of the inlet water, the filter fillers are arranged in the detachable filter cylinder, the detachable filter cylinder is composed of upper and lower end covers and two large and small circular arc segments, a plurality of filter holes are formed in the end covers and the large and small circular arc segments, and the diameters of the filter holes are arranged according to the sewage treatment condition, which is not limited. The upper and lower end covers are respectively fixed on the large circular arc segment by welding, and one side of the small circular arc segment is hingedly connected to the large circular arc segment, and the other side is movably fixed on the large circular arc segment by a bolt.

[0026] The upper ends of the anaerobic zone, the anoxic zone and the aerobic zone are provided with flow guide holes, the flow guide hole of the anaerobic zone is higher than that of the anoxic zone, and the flow guide hole of the anoxic zone is higher than that of the aerobic zone, the anoxic zone and the aerobic zone are both provided with a composite biological filter filler layer 10, the filler of the composite biological filter filler layer is in a spherical shell shape with a diameter of 80mm-150mm, the spherical shell is made of PP material or polypropylene, the filler in the spherical shell is HDPE, polyurethane sponge, iron-carbon and the like, the upper end of the composite biological filter filler layer is provided with a blocking net 13, the blocking net can be a fishing net or a safety net or a device with holes, the mesh size of the net is smaller than the particle size of the filler, so as to prevent the filler in the composite biological filter filler layer from flowing to the next sewage treatment zone with water. An aeration pipe extending out of the sewage purification treatment tank is arranged in the aerobic zone, one end of the aeration pipe extends to the bottom of the tank, and the other end extends out of the sewage purification treatment tank, the air inlet end of the aeration pipe is connected with a fan, the fan is electrically connected with the photovoltaic power generation device, a reflux pipe is further connected between the anoxic zone and the aerobic zone, the reflux pipe is connected with the aeration pipe through a branch pipe, the pipe diameter of the reflux pipe is larger than that of the branch pipe, the branch pipe extends into the reflux pipe 14 and is upwardly open, forming a gas lifting structure, and in the embodiment, the branch pipe extends into the reflux pipe and is provided with an elbow with an upward opening. Air is supplied to the reflux pipe through the branch pipe, and air is used to drive sewage to flow upward along the reflux pipe. The upper end of the sedimentation zone is provided with a drainage outlet, and the drainage outlet is connected with a drainage pipe 16.

[0027] The photovoltaic power generation device comprises a photovoltaic support frame, a photovoltaic panel 2 and a lightning rod 1 are arranged on the photovoltaic support frame, and the photovoltaic panel 2 is electrically connected with a storage battery 6 through a wire. An octagonal column is adopted for the column 3 of the photovoltaic support frame, and in the embodiment, the cross section of the column is a regular octagon, and the column is formed by using high-quality steel Q235B hot-rolled steel coil once. The lower end of the column is connected with a pre-buried cage through a column foot flange plate 5. The lower end of the column 3 is connected with a grounding wire 8 through a metal pipe, and a maintenance hole is formed in the lower end of the column of the photovoltaic support frame, and a maintenance door 4 is arranged in the maintenance hole, so that wiring and maintenance are facilitated, and a rubber pad is arranged between the maintenance door and the column, so that good waterproofness is achieved. A ventilation hole is formed in the side wall of the control box 7, and the control box is internally provided with a control area and a device mounting area, the fan is arranged in the device mounting area, the inverter and the control panel are arranged in the control area, the photovoltaic power generation device is electrically connected with the inverter through a wire, and in the embodiment, the photovoltaic panel and the storage battery are respectively electrically connected with the inverter through wires, the inverter is electrically connected with the control panel, and the control panel is electrically connected with the fan. The control box is internally provided with a cooling fan, the cooling fan is electrically connected with the control panel, and the cooling fan accelerates convection cooling.

[0028] The working principle of the utility model is as follows:

[0029] Sewage enters the anaerobic zone, the anoxic zone and the aerobic zone of the sewage purification treatment tank in sequence through the filtering device for biological filtration treatment, the filtering device is used for intercepting solid waste in the water, the aeration pipe of the oxygen supply device continuously supplies oxygen to the aerobic zone, the sewage treated in the aerobic zone flows into the anoxic zone through the reflux pipe for microbial treatment again, the nitrification liquid is refluxed to the anoxic zone to remove total nitrogen, and finally, the sewage flows through the sedimentation zone, and the treated sewage is discharged after being precipitated again, so that the purification treatment effect is good. The fan for supplying oxygen to the aeration pipe is powered by the photovoltaic power generation device, so that the problem of inconvenient rural power supply access is solved.

Claims

1. A sewage treatment purification device, characterized by: The sewage purification treatment tank is provided with a sealing cover at the upper end, and a plurality of partitions are arranged in the sewage purification treatment tank to sequentially form an anaerobic zone, an anoxic zone, an aerobic zone and a sedimentation zone.

2. The sewage treatment purification device according to claim 1, characterized in that: The control box is provided with a ventilation hole in the side wall, and the control box is provided with a control area and a device mounting area.

3. The sewage treatment purification device according to claim 2, characterized in that: The control box is provided with a ventilation hole in the side wall, and the control box is provided with a control area and a device mounting area.

4. The sewage treatment purification device according to claim 1 or 2, characterized by: The photovoltaic power generation device comprises a photovoltaic support frame, a photovoltaic panel and a lightning rod are arranged on the photovoltaic support frame, and the photovoltaic panel is electrically connected with a storage battery through a wire.

5. The sewage treatment purification device according to claim 4, characterized in that: The column of the photovoltaic support frame is an octagonal pyramid rod, and the lower end of the column is connected with a pre-buried cage through a column foot flange.

6. The sewage treatment purification apparatus according to claim 4, characterized by: The lower end of the column of the photovoltaic support frame is provided with an inspection hole, and the inspection hole is provided with an inspection door.

7. The sewage treatment purification device according to claim 1 or 2, characterized by: The filter device comprises a detachable filter cartridge and filter filler, the filter filler is arranged in the detachable filter cartridge, the detachable filter cartridge is composed of upper and lower end covers and two large and small circular arc segments, a plurality of filter holes are arranged on the end covers and the large and small circular arc segments, the upper and lower end covers are fixed on the large circular arc segment, one side of the small circular arc segment is hinged on the large circular arc segment, and the other side is movably fixed on the large circular arc segment through a bolt.

8. The sewage treatment purification device according to claim 1 or 2, characterized by: The upper end of the composite biological filter filler layer is provided with a blocking net.

9. The sewage treatment purification device according to claim 1 or 2, characterized by: The sealing cover is provided with a manhole.

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