CN215886698U

CN215886698U - Rural sewage treatment plant of integration suitable for no intake of medium and long term

Info

Publication number: CN215886698U
Application number: CN202120955077.XU
Authority: CN
Inventors: 沈志刚; 张�杰; 张宗来
Original assignee: Shanghai Panda Machinery Group Co Ltd
Current assignee: Shanghai Panda Machinery Group Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2022-02-22
Anticipated expiration: 2031-05-07

Abstract

The utility model discloses an integrated rural sewage treatment device suitable for medium-and-long-term non-water inflow, which comprises a box body, a water inlet, a water outlet, a grid, a fan, a filler, an electric valve, an aeration device, an air lifting device and an automatic control cabinet, wherein the box body is provided with a top cover and is divided into a septic tank, an anaerobic tank, an aerobic tank and a sedimentation tank, the septic tank is divided into three ways, the water inlet is provided with a water flow monitoring device, spherical suspended fillers are respectively placed in the anaerobic tank and the aerobic tank, the aerobic tank is internally provided with the aeration device, the sedimentation tank is divided into a sedimentation zone and a reflux zone, the air lifting device is fixed in the reflux zone, the aeration device and the air lifting device are both connected with the fan, the electric valve is arranged on a reflux pipeline leading to a sewage intercepting zone of the septic tank, simultaneously sludge also flows back to the anaerobic tank, the automatic control cabinet is connected with the fan and the electric valve, the utility model is suitable for rural domestic sewage treatment, has simple structure, low cost, low operation and maintenance cost, energy conservation and consumption reduction, good sewage treatment effect and stable and reliable operation.

Description

Rural sewage treatment plant of integration suitable for no intake of medium and long term

Technical Field

The utility model relates to a sewage treatment device which is applied to a medium-long period (1-2 months) without water inflow and can maintain the activity of biological bacteria in the device, and the effluent can still reach the standard after water inflow.

Background

At present, sewage pipe networks are not laid in most rural areas in China, sewage generated by families in daily life is discharged into river channels without being treated, the distributed small-amount discharge can cause certain pollution to the environment, and is inconsistent with the construction of new rural areas, so the distributed sewage treatment for rural families is a particularly obvious problem, the existing rural environment infrastructure is weak, the sewage treatment equipment is few and lags relatively, the operation and maintenance cost of the equipment is insufficient, and relevant knowledge is lacked, while the existing small-sized integrated sewage treatment equipment in the market mostly needs to be operated continuously, if water does not enter for a certain time, active bacteria in the equipment can be attenuated, when water enters again, the water is easy to cause that the water does not reach the standard, the water can reach the standard after the active bacteria are recovered, the single set of manufacturing cost is expensive, the equipment is difficult to operate and maintain, and is not suitable for rural household sewage treatment, the small-sized integrated device which has simple structure and low cost and can be used for domestic sewage treatment is needed urgently.

Disclosure of Invention

The utility model aims to solve the problems, provides an integrated rural sewage treatment device which is suitable for medium-long-term non-water inflow, has simple structure and low operation and maintenance cost, can treat sewage generated by rural families, and provides the following technical scheme for solving the technical problems: a small-sized integrated sewage treatment device for rural household comprises an equipment box body with a water inlet and a water outlet. A water flow detection device is arranged at an inlet of the equipment box body; the device comprises a device box body, wherein a septic tank, an anaerobic tank, an aerobic tank and a sedimentation tank are sequentially arranged in the device box body, a water inlet pipe is connected with the septic tank, a three-way pipe is connected to the bottom of the anaerobic tank, the anaerobic tank is connected with the aerobic tank, spherical filler is placed in the anaerobic tank, an aeration device and the spherical filler are arranged in the aerobic tank, bottom water flows to the sedimentation tank, inclined pipe filler is placed in the sedimentation tank, an air stripping device is fixed at the bottom of the sedimentation tank and used for sludge backflow, preferably, the septic tank is provided with two partition plates which partition a sewage intercepting area, a fermentation area and a floating separating area, the sewage intercepting area is separated by a grid net and communicated with the fermentation area, the solid suspended matters in water are intercepted, the solid suspended matters comprise dung peels, dung residues and rice residues, and are subjected to primary fermentation, the fermentation area is communicated with the sewage intercepting area, water in the sewage intercepting area flows to the fermentation area, and the fermentation area is mainly used for accumulating and fermenting the incoming water again, the anaerobic tank and the aerobic tank are internally provided with a microporous aerator pipe, the equipment is externally provided with a fan for supplying air, preferably, the anaerobic tank and the aerobic tank are both placed in spherical suspension fillers so as to facilitate the growth of microorganisms, preferably, grid nets are arranged at the outlets of the anaerobic tank and the aerobic tank so as to block the spherical suspension fillers and prevent the loss, preferably, the spherical suspension fillers adopt the specification of 80mm in diameter, preferably, the sedimentation tank is internally divided into two grids, one grid is provided with an inclined tube filler for precipitating effluent, the other grid is provided with an air lifting device for sludge backflow, preferably, the inclined tube filler has a 35mm pore diameter, the inclination angle is 60 degrees, preferably, an air inlet of the air lifting device is connected with a fan, a water outlet of the air lifting device flows back to the anaerobic tank and the first grid sewage intercepting area of the septic tank, preferably, an electric valve is arranged on a backflow pipe of the air lifting device flowing back to the first grid sewage intercepting area of the septic tank, and under the condition of no water inlet for a long time, internal circulation can be realized, and the survival time of microorganisms can be prolonged.

Drawings

Fig. 1 is a schematic structural view of the small-sized integrated rural domestic sewage treatment device of the present invention, fig. 2 is a plan view of an internal structure of the small-sized integrated rural domestic sewage treatment device, and fig. 3 is a schematic structural view of an air stripping device, wherein: 1. the water inlet pipe, 2, graticule mesh, 3, elbow siphunculus, 4, three-way pipe, 5, spherical filler, 6, separate the net, 7, micropore aeration pipe, 8, aeration air inlet, 9, pipe chute filler, 10, triangle weir, 11, delivery port, 12, air stripping device, 13 backward flow air inlet, 14, motorised valve, 15, rivers detection device.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present invention, the directional indicators (such as upper, lower, left, and right … …) described in the embodiment of the present invention are all used to explain the relative positions of the components in a certain specific posture, and if the specific posture changes, the corresponding directional indicators should also change, the present invention provides a small-sized integrated rural domestic sewage treatment device, as shown in the structural schematic diagram 1, the sewage treatment device comprises a water inlet pipe 1, the water inlet pipe 1 is connected with a first grid sewage interception tank, the sewage interception tank is separated from a fermentation zone by a grid 2, the areas of the two areas are the same, the right side of the fermentation zone is a floating isolation zone, a partition plate with an opening lower than the water surface is arranged between the two zones, the opening hole is connected with an elbow through pipe 3 leading to the bottom of the floating isolation tank, the sewage in the floating separation area flows to an anaerobic tank through an upper opening of a rear side plate, the opening of the rear side plate is connected with a three-way pipe 4 leading to the bottom of the anaerobic tank, the other end of the three-way pipe 4 is opened upwards, spherical fillers 5 are placed in the anaerobic tank, a water outlet is arranged at the right side of the anaerobic tank, a separation net 6 is arranged at the upper part of the water outlet to prevent the spherical fillers 5 from losing, the sewage in the anaerobic tank enters an aerobic tank through the water outlet, the spherical fillers 5 and microporous aeration pipes 7 are placed in the aerobic tank, the microporous aeration pipes 7 are connected with a fan, the fan is connected with an aeration air inlet 8, the water in the aerobic tank enters a sedimentation tank through the opening at the bottom, a partition plate is arranged at the opening at the bottom to prevent the spherical fillers 5 from losing, the sedimentation tank is divided into a sedimentation area and a reflux area, inclined pipe fillers 9 are arranged in the sedimentation area, and the clean water in the sedimentation area flows to an upper triangular weir 10, flows out from a water outlet 11 in the middle of a triangular weir 10, the bottom of a reflux area is communicated with a settling area, an air lifting device 12 is arranged in the reflux area, the air lifting device is connected with a reflux air inlet 13 and a fan, the water outlet of the air lifting device 12 is communicated with an anaerobic tank and a sewage interception area of a septic tank, a tee joint is arranged at the upper end of a water inlet three-way pipe 4 of the anaerobic tank for a sludge reflux function, an electric valve 14 is arranged in the sewage interception area, a water flow detection device 15 is arranged at an equipment inlet, the fan, the electric valve 14 and the water flow detection device 15 are both connected with an automatic control cabinet, a water flow detection function is arranged at the water inlet of the equipment, when no water is fed in the sewage interception area and exceeds a certain time limit, signals can be fed back to the automatic control cabinet, the accumulation of suspended matters in the sewage interception area of the septic tank is beneficial to fermentation, and nutrients required by the survival of microorganisms under the condition of discontinuous water supply can be provided, the baffle plates of the fermentation area and the floating separation area can block floating objects in the fermentation area to ensure that a subsequent processing unit does not have large suspended matters, the air stripping device lifts sludge in the sedimentation tank to the anaerobic tank, the structure is simple, the maintenance cost can be reduced, the return pipe of the air stripping device is communicated with the sewage interception area of the septic tank, the electric valve on the return pipe is in a closed state for a long time, when the water inlet is monitored to be free of water inflow for a long time, the electric valve is opened, the sludge flows back to the sewage interception area to form internal circulation, and the survival time of microorganisms is greatly prolonged.

Claims

1. The utility model provides a rural sewage treatment plant of integration suitable for no intake of medium and long term, includes the box shell, its characterized in that: the improved sewage treatment device is characterized in that the interior of the box body shell is divided into a septic tank, an anaerobic tank, an aerobic tank and a sedimentation tank, the septic tank is divided into a sewage intercepting area, a fermentation area and a floating area, the sedimentation tank is divided into the sedimentation tank and a backflow area, spherical suspended fillers are placed in the anaerobic tank and the aerobic tank, a microporous aeration pipe is arranged in the aerobic tank, an air lifting device is arranged in the backflow area, a water outlet of the air lifting device leads to the anaerobic tank and the sewage intercepting area, an electric valve is arranged on a pipe leading to the sewage intercepting area, an inclined pipe filler is arranged in the sedimentation tank, and a water flow detection device is arranged at an inlet of the improved sewage treatment device.

2. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: the sewage interception area and the fermentation area are separated by a grid.

3. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: the fermentation area and the floating area are separated by a perforated plate lower than the water surface.

4. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: the inlet of the anaerobic tank is connected with a three-way pipe, one end of the three-way pipe is downward and leads to the bottom of the anaerobic tank, and the other end of the three-way pipe is upward and higher than the water surface to receive return sludge.

5. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: the microporous aeration pipe is fixed at the bottom of the aerobic tank and is connected with the fan.

6. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: the air lifting device is fixed in the reflux area and is connected with the fan, the outlet of the air lifting device is respectively communicated with the anaerobic tank and the septic tank sewage interception area, and an electric valve is arranged on a pipe communicated with the septic tank sewage interception area.

7. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: the effluent of the sedimentation tank flows out through a triangular effluent weir.

8. The integrated rural sewage treatment plant suitable for medium and long term non-water inflow according to claim 1, characterized in that: all the electric equipment is connected to the automatic control cabinet.