CN219907310U - Sewage treatment carries mark device with biomembrane function - Google Patents

Abstract

The utility model relates to a sewage treatment label-lifting device with a biomembrane function, which comprises a box body and a fan air pipe, wherein a water collecting tank, a hydrolysis tank, a facultative tank, a contact oxidation tank, a secondary sedimentation tank, a reverse micro-ecological filter bed and a clean water tank are sequentially distributed in the box body along the horizontal direction, and a water inlet main pipe and a water outlet main pipe are arranged on the box body. In the box body, the tops of the water collecting tank, the hydrolysis tank, the facultative tank, the contact oxidation tank and the secondary sedimentation tank are all closed, and the tops of the water inlet area, the reverse micro-ecological filter bed and the clean water tank are provided with openings which are communicated with the outside. The sewage treatment label lifting device is adopted to carry out multi-process multifunctional treatment on sewage, so that the water quality is further improved, the stable output of the water quality and the water quantity is maintained, and the impact resistance is good under the condition that the water quality and the water quantity are unstable.

Description

Sewage treatment carries mark device with biomembrane function

Technical Field

The utility model belongs to the technical field of rural domestic sewage treatment, and particularly relates to a sewage treatment label lifting device with a biomembrane function.

Background

The rural domestic sewage treatment is to remove and degrade harmful substances and environmental pollution components in the domestic sewage to perform harmless treatment. At present, the treatment technology of rural domestic sewage treatment is relatively more, and the technology can be generally classified into two types from the technical principle: the first is a natural treatment system, which uses the principles of soil filtration, plant absorption and microbial decomposition, also called ecological treatment system; the second category is biological treatment systems. The existing biological treatment system has single structure, less functions and poor sewage treatment effect on rural areas, and because rural sewage is generated in a time-sharing manner, the sewage quality and the water quantity generated in different time-sharing manners are large, the impact resistance of the biological treatment system with a single structure is low, and the system is easy to damage when the rural sewage quality and the water quantity are unstable, so that the system is difficult to use for a long time.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides a sewage treatment label lifting device with a biomembrane function, and solves the technical problems of poor sewage treatment effect, lower impact resistance and the like caused by a small number of functions of a sewage treatment system with a single structure.

In order to solve the problems, the technical scheme of the utility model is as follows: the sewage treatment label-lifting device with the biomembrane function comprises a box body and a fan air pipe, wherein a water collecting tank, a hydrolysis tank, a facultative tank, a contact oxidation tank, a secondary sedimentation tank, a reverse micro-ecological filter bed and a clean water tank are sequentially arranged in the box body along the transverse conveying direction of sewage; the tops of the water collecting tank, the hydrolysis tank, the facultative tank, the contact oxidation tank and the secondary sedimentation tank are all closed, and the tops of the reverse micro-ecological filter bed and the clean water tank are provided with openings communicated with the outside; a water inlet main pipe and a water outlet main pipe are arranged on the tank body, the water inlet main pipe is connected with a basket grid in the water collecting tank, and the water outlet main pipe is connected with the clean water tank;

the water collecting tank is communicated with the hydrolysis tank through a sewage conveyer, and the water collecting tank conveys sewage to the lower part of the hydrolysis tank through the sewage conveyer;

a water distribution pipe and a first biochemical filler layer are arranged in the hydrolysis tank from bottom to top, the water distribution pipe is connected with the water outlet end of the sewage conveyer, a plurality of water distribution holes are formed in the side wall of the water distribution pipe, and sewage in the hydrolysis tank enters the facultative tank through a first overflow tank;

the anaerobic tank is internally provided with a diving stirring device and a second biochemical filler layer, the diving stirring device is positioned below the second biochemical filler layer, and the side wall of the lower part of the anaerobic tank is provided with a second water passing hole communicated with the contact oxidation tank;

a third biochemical filler layer and a first aeration system are arranged in the contact oxidation tank, the first aeration system is positioned below the third biochemical filler layer, the contact oxidation tank is communicated with the facultative tank through a nitrifying liquid reflux device, and sewage in the contact oxidation tank enters the secondary sedimentation tank through a second overflow tank;

a water distribution central cylinder and a sludge reflux device are arranged in the secondary sedimentation tank, the side part of the water distribution central cylinder is connected with a water passing pipe, the water passing pipe is communicated with a water inlet of the secondary sedimentation tank, the upper end of the water distribution central cylinder is fixedly connected with the top wall of the tank body, the lower end opening of the water distribution central cylinder extends into the lower part of the secondary sedimentation tank, and the secondary sedimentation tank is communicated with the hydrolysis tank through the sludge reflux device;

the reverse micro-ecological filter bed comprises a water inlet area and a purification area which are horizontally distributed, water discharged from the secondary sedimentation tank enters the water inlet area through a third overflow groove, and the side wall of the lower part of the water inlet area is communicated with the purification area through a water distribution flower wall; a second aeration system, a perforated bottom plate, an enhanced ecological filter material layer and a purified plant layer are sequentially arranged in the purification area from bottom to top, a water outlet is formed in the side wall of the upper part of the purification area, the water outlet of the purification area is connected with a second water outlet pipe, and the water outlet end of the second water outlet pipe extends into the clean water tank; the clean water tank is communicated with the water inlet area through a reuse water lifter;

the fan air pipe is communicated with the fan, and a first branch pipe, a second branch pipe, a third branch pipe, a fourth branch pipe and a fifth branch pipe are arranged on the fan air pipe; a first valve is arranged on the first branch pipe, and the first branch pipe stretches into the lower part of the water collecting tank; a second valve is arranged on the second branch pipe, and the second branch pipe stretches into the lower part of the facultative tank; a third valve is arranged on the third branch pipe, and the third branch pipe stretches into the lower part of the contact oxidation pond and is connected with the first aeration system; a fourth valve is arranged on the fourth branch pipe, and the fourth branch pipe stretches into the lower part of the secondary sedimentation tank; the fifth branch pipe is provided with a fifth valve, extends into the lower part of the purification zone and is connected with the second aeration system.

Optionally, the sewage conveyer comprises a sewage lifting device and a first water outlet pipe, wherein the sewage lifting device is positioned at the lower part of the water collecting tank, the water inlet end of the first water outlet pipe is connected with the sewage lifting device, and the water outlet end of the first water outlet pipe extends into the lower part of the hydrolysis tank.

Optionally, the nitrifying liquid reflux device comprises nitrifying liquid reflux equipment and a nitrifying liquid reflux pipe, the nitrifying liquid reflux equipment is located at the lower portion of the contact oxidation pond, a water outlet of the nitrifying liquid reflux equipment is connected with the nitrifying liquid reflux pipe, a water outlet end of the nitrifying liquid reflux pipe stretches into the facultative pond, and a water outlet end of the nitrifying liquid reflux pipe is located above the second biochemical filler layer.

Optionally, the sludge reflux device comprises a sludge reflux device and a sludge reflux pipe, the sludge reflux device is positioned at the bottom of the secondary sedimentation tank, a water outlet of the sludge reflux device is connected with the sludge reflux pipe, a water outlet end of the sludge reflux pipe extends into the hydrolysis tank, and a water outlet end of the sludge reflux pipe is positioned above the first biochemical filler.

Optionally, the reuse water lifter comprises reuse water lifting equipment, a conveying pipe and a return water pipe, a water outlet of the reuse water lifting equipment is communicated with the return water pipe through the conveying pipe, a water outlet end of the return water pipe stretches into the water inlet area, and a return water valve is arranged on the return water pipe.

Optionally, a water outlet main pipe of the box body is connected with the conveying pipe, and a water outlet valve is arranged on the water outlet main pipe of the box body.

Optionally, a fine filter screen for trapping phytoplankton is arranged at the water outlet of the purifying zone.

Optionally, the system also comprises an automatic control system, and the sewage conveyer, the nitrifying liquid reflux device, the sludge reflux device, the reuse water lifting device and the fan are all electrically connected with the automatic control system.

Optionally, the bottom of the reverse micro-ecological filter bed is provided with a sludge discharge system, the sludge discharge system comprises a perforated sludge discharge pipe with a 'mesh' shape, a sludge discharge electric valve and a sludge discharge main pipe, the sludge discharge end of the perforated sludge discharge pipe is connected with the sludge discharge main pipe of the box body, the sludge discharge electric valve is arranged on the sludge discharge main pipe, and the sludge discharge electric valve is electrically connected with the automatic control system.

Optionally, the water collecting tank, the contact oxidation tank, the secondary sedimentation tank, the reverse micro-ecological filter bed and the clean water tank are all provided with liquid level monitors, liquid level signals collected by the liquid level monitors are transmitted to an automatic control system, and the automatic control system controls the starting and stopping of electromechanical equipment in the sewage treatment standard lifting device so that the sewage treatment standard lifting device is linked to realize automatic operation.

Optionally, the device also comprises a disinfection dosing mechanism for dosing disinfectant into the clean water tank, wherein the disinfection dosing mechanism is electrically connected with the automatic control system, and the dosing process is controlled by the automatic control system.

Compared with the prior art, the utility model has the beneficial effects that:

1. the sewage treatment and standard extraction device is provided with the water collecting tank, the hydrolysis tank, the facultative tank, the contact oxidation tank, the secondary sedimentation tank, the reverse micro-ecological filter bed and the clean water tank, sewage enters the water collecting tank to be temporarily stored through the water collecting tank, water quality and water quantity are regulated, enough residence time of the sewage in the water collecting tank ensures that the water quality is consistent, and sewage lifting equipment is arranged in the water collecting tank, so that the water quantity in the system is stable. The basket grids are arranged in the water collecting tank and used for removing larger suspended matters in water and protecting subsequent process equipment. By arranging the hydrolysis tank, macromolecular organic matters difficult to degrade in the sewage are hydrolyzed and acidified, and degraded into micromolecular organic matters. By arranging the facultative tank, sewage is mixed with the returned nitrifying liquid to perform denitrification, so that denitrification is realized. The sewage is subjected to organic oxidation and nitrification in a contact oxidation tank, aerobic phosphorus absorption is performed in the contact oxidation tank, and phosphorus removal is performed by periodically discharging excess sludge; sewage is subjected to mud-water separation and sludge concentration in a secondary sedimentation tank, and a sludge reflux device in the secondary sedimentation tank returns part of sludge to a hydrolysis tank to ensure the biochemical sludge quantity and activity. The sewage is filtered by antigravity in the purification area, the deep adsorption classification of organic pollutants, inorganic salt particles and the like in the sewage is realized through the microbial action, the physical action and the plant action, and the effluent enters a clean water tank and is disinfected by adding disinfectant through a disinfection and dosing mechanism. The sewage treatment label lifting device is adopted to carry out multi-process multifunctional treatment on sewage, so that the water quality is further improved, the effluent meets the standard requirement, the stable output of the water quality and the water quantity is maintained, and the impact resistance is good under the condition that the water quality and the water quantity are unstable.

2. In the sewage treatment of this embodiment carries mark device, set up first branch pipe in the catch basin, set up the second branch pipe in the facultative tank, set up the fourth branch pipe in the secondary sedimentation tank for wash the desilting to the bottom of the pool, reduce sewage treatment and carry mark device and lead to the risk that treatment effect reduces because of mud siltation, be convenient for later stage processing system maintenance. The first branch pipe is also used for pre-aerating the water collecting tank, and the second branch pipe is also used for aerating the facultative tank. A first aeration system is arranged in the contact oxidation pond, a second aeration system is arranged in the purification area, and blast aeration is performed to ensure sufficient oxygen.

3. In the sewage treatment label lifting device of the embodiment, the automatic control of the electromechanical equipment in the sewage treatment label lifting device is realized by arranging the automatic control system, so that the sewage treatment label lifting device automatically operates, and the operation is simple and convenient. All set up the liquid level monitor in each technology pond of sewage treatment and carry mark device, realize the control to the liquid level, and then start and stop through automatic control system control electromechanical device makes sewage treatment carry mark device realize automatic operation.

4. In the sewage treatment label lifting device of the embodiment, the water collecting tank, the water inlet area and the clean water tank are arranged, so that sewage temporarily stays in each procedure of the sewage treatment label lifting device, the flowing sewage quality and water quantity in the box body are kept stable, and the impact on the sewage treatment label lifting device is reduced.

Drawings

FIG. 1 is a schematic view of the interior of a case in an embodiment;

fig. 2 is a schematic structural diagram of a sludge discharge system in an embodiment.

Reference numerals: 1. a case; 11. a water inlet main pipe; 12. a water outlet main pipe; 121. a water outlet valve; 2. a water collecting tank; 21. basket grille; 22. a sewage lifting device; 23. a first water outlet pipe; 3. a hydrolysis tank; 31. a water distribution pipe; 32. a first bio-filler layer; 33. a first overflow trough; 34. a first water passing hole; 4. a facultative tank; 41. diving stirring equipment; 42. a second biochemical filler layer; 43. a second water passing hole; 5. a contact oxidation pond; 51. a nitrifying liquid reflux device; 52. a third biochemical filler layer; 53. a second overflow trough; 54. a first aeration system; 55. a nitrifying liquid return pipe; 6. a secondary sedimentation tank; 61. a water distribution central cylinder; 62. a sludge recirculation device; 63. a third overflow trough; 64. a water passing pipe; 65. a sludge return pipe; 7. reverse microecological filter bed; 71. a water inlet area; 711. distributing water to the flower wall; 72. a purification zone; 721. a second aeration system; 722. perforating the bottom plate; 723. reinforcing an ecological filter material layer; 724. purifying the plant layer; 725. a second water outlet pipe; 73. a mud discharging system; 731. perforating a mud pipe; 732. a mud discharge electric valve; 733. a mud discharging main pipe; 8. a clean water tank; 81. reusing the water lifting device; 82. a delivery tube; 821. a water return pipe; 822. a backwater valve; 9. a fan air pipe; 91. a first branch pipe; 911. a first valve; 92. a second branch pipe; 921. a second valve; 93. a third branch pipe; 931. a third valve; 94. a fourth branch pipe; 941. a fourth valve; 95. a fifth branch pipe; 951. and a fifth valve.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples.

Examples

As shown in fig. 1 and 2, this embodiment provides a sewage treatment scale lifting device with a biomembrane function, which comprises a box body 1, wherein a water collecting tank 2, a hydrolysis tank 3, a facultative tank 4, a contact oxidation tank 5, a secondary sedimentation tank 6, a reverse micro-ecological filter bed 7 and a clean water tank 8 are sequentially distributed in the box body 1 along the horizontal direction, and a water inlet main pipe 11 and a water outlet main pipe 12 are arranged on the box body 1. In the box body 1, the tops of the water collecting tank 2, the hydrolysis tank 3, the facultative tank 4, the contact oxidation tank 5 and the secondary sedimentation tank 6 are all closed, and the tops of the reverse micro-ecological filter bed 7 and the clean water tank 8 are provided with openings which are communicated with the outside.

The water collecting tank 2 is internally provided with a basket grid 21, sewage lifting equipment 22 and a first water outlet pipe 23, the basket grid 21 is positioned at the left side of the upper end of the water collecting tank 2, and the water outlet end of the water inlet main pipe 11 extends into the basket grid 21; the sewage lifting device 22 is positioned at the bottom of the water collecting tank 2, the water inlet end of the first water outlet pipe 23 is connected with the sewage lifting device 22, and the water outlet end of the first water outlet pipe 23 extends into the lower part of the hydrolysis tank 3.

The hydrolysis tank 3 is internally provided with a water distribution pipe 31, a first biochemical filler layer 32 and a first overflow groove 33, the water distribution pipe 31 is horizontally arranged at the lower part of the hydrolysis tank 3, one end of the water distribution pipe 31 is communicated with the first water outlet pipe 23, and a plurality of water distribution holes are formed in the side wall of the water distribution pipe 31; the first biochemical filler layer 32 is arranged in the middle of the hydrolysis tank 3, the first overflow groove 33 is arranged on the side wall of the upper part of the hydrolysis tank 3, the upper part of the first overflow groove 33 is provided with an overflow port, and the side wall of the first overflow groove 33 is provided with a first water passing hole 34 communicated with the facultative tank 4.

The facultative tank 4 is internally provided with a diving stirring device 41 and a second biochemical filler layer 42, the diving stirring device 41 is arranged at the lower part of the facultative tank 4, the second biochemical filler layer 42 is arranged at the middle part of the facultative tank 4, and the side wall of the lower part of the facultative tank 4 is provided with a second water passing hole 43 communicated with the contact oxidation tank 5.

The nitrifying liquid reflux device 51, the third biochemical filler layer 52, the second overflow groove 53 and the first aeration system 54 are arranged in the contact oxidation pond 5, the nitrifying liquid reflux device 51 is located at the lower part of the contact oxidation pond 5, a water outlet of the nitrifying liquid reflux device 51 is connected with the nitrifying liquid reflux pipe 55, a water outlet end of the nitrifying liquid reflux pipe 55 stretches into the facultative tank 4, a water outlet end of the nitrifying liquid reflux pipe 55 is located above the second biochemical filler layer 42, the third biochemical filler layer 52 is located at the middle part of the contact oxidation pond 5, the first aeration system 54 is located at the lower part of the contact oxidation pond 5, the second overflow groove 53 is located at the side wall of the upper part of the contact oxidation pond 5, an overflow port is formed in the upper end of the second overflow groove 53, and the side part of the second overflow groove 53 is communicated with a water inlet of the secondary sedimentation pond 6.

In the sewage treatment label-raising device of the present embodiment, the first biochemical filler layer 32, the second biochemical filler layer 42 and the third biochemical filler layer 52 are provided to form carriers for microorganism growth and aggregation, and the biological membrane function is utilized to treat sewage.

A water distribution central cylinder 61, a sludge reflux device 62 and a third overflow trough 63 are arranged in the secondary sedimentation tank 6, the side part of the water distribution central cylinder 61 is connected with a water pipe 64, the water pipe 64 is communicated with the water inlet of the secondary sedimentation tank 6, the water distribution central cylinder 61 is vertically arranged in the secondary sedimentation tank 6, the upper end of the water distribution central cylinder 61 is fixedly connected with the top wall of the tank body 1, the lower end opening of the water distribution central cylinder 61 stretches into the lower part of the secondary sedimentation tank 6, and effluent of the contact oxidation tank 5 enters the water distribution central cylinder 61 through the second overflow trough 53 and the water pipe 64.

The water outlet of the sludge reflux device 62 is connected with the sludge reflux pipe 65, the water outlet end of the sludge reflux pipe 65 extends into the hydrolysis tank 3, and the water outlet end of the sludge reflux pipe 65 is positioned above the first biochemical filler layer 32, and the sludge reflux device 62 reflux the sludge to the front end of the contact oxidation tank 5. The third overflow groove 63 is positioned at the side wall of the upper part of the secondary sedimentation tank 6, an overflow port is arranged at the upper end of the third overflow groove 63, the side part of the third overflow groove 63 is communicated with the water inlet area 71, and the effluent of the secondary sedimentation tank 6 enters the reverse micro-ecological filter bed 7 through the third overflow groove 63.

The bottom of the secondary sedimentation tank 6 adopts a conical mud bucket type, substances with larger water density in the sedimentation tank sink into the mud bucket, and as the gradient of the mud bucket wall is not less than 55 degrees, the sediment can be ensured to slide into the mud bucket along the bucket wall under the action of gravity, and the mud in the mud bucket is mainly compressed and precipitated along with the time lapse: in the mud bucket, the mud subsides, and the granule is contacted each other, relies on gravity compression lower floor granule, makes the liquid in the granule clearance of lower floor be extruded the interface and flow upward, and solid particle crowd is concentrated to realize mud concentration.

The reverse micro-ecological filter bed 7 comprises a water inlet area 71 and a purification area 72 which are horizontally distributed, water discharged from the secondary sedimentation tank 6 enters the water inlet area 71 through a third overflow groove 63, the side wall of the lower part of the water inlet area 71 is communicated with the purification area 72 through a water distribution flower wall 711, a second aeration system 721, a perforated bottom plate 722, an enhanced ecological filter layer 723 and a purified plant layer 724 are sequentially arranged in the purification area 72 from bottom to top, and the water distribution flower wall 711 is opposite to the side part of the enhanced ecological filter layer 723. A water outlet is formed in the upper side wall of the purification area 72, which is opposite to the enhanced ecological rate material layer, the water outlet of the purification area 72 is connected with a second water outlet pipe 725, and the water outlet end of the second water outlet pipe 725 extends into the clean water tank 8. The perforated bottom plate 722 is used to support the upper enhanced ecological filter layer 723, while the perforated bottom plate 722 is perforated to ensure that water and sludge can enter the bottom and air in the lower second aeration system 721 can enter the upper enhanced ecological filter layer 723. The reverse micro-ecological filter bed 7 adopts a lower water inlet and upper water outlet mode, so that the filtering and precipitating time of sewage in the filter bed is prolonged.

The clear water tank 8 is internally provided with a reuse water lifting device 81, the reuse water lifting device 81 is arranged at the lower part of the clear water tank 8, a water outlet of the reuse water lifting device 81 is connected with a conveying pipe 82, and the conveying pipe 82 is bifurcated to form a return pipe 821 and a water outlet main 12. The water outlet end of the return pipe 821 extends into the water inlet region 71. The water outlet main pipe 12 is provided with a water outlet valve 121, and the water return pipe 821 is provided with a water return valve 822. The clean water tank 8 is provided with a return pipe 821 for supplementing the water source of the filter bed and reducing the unstable running risk of the reverse micro-ecological filter bed 7 caused by insufficient water supply of the sewage treatment and upgrading device.

The sewage treatment label-lifting device of the embodiment further comprises a fan air pipe 9, wherein the fan air pipe 9 is positioned outside the box body 1, the fan air pipe 9 is connected with a fan, the fan air pipe 9 is connected with a first branch pipe 91, a second branch pipe 92, a third branch pipe 93, a fourth branch pipe 94 and a fifth branch pipe 95, the first branch pipe 91 stretches into the lower part of the water collecting tank 2, a first valve 911 is arranged on the first branch pipe 91, the second branch pipe 92 stretches into the lower part of the facultative tank 4, a second valve 921 is arranged on the second branch pipe 92, the third branch pipe 93 stretches into the lower part of the contact oxidation tank 5 and is connected with the first aeration system 54, a third valve 931 is arranged on the third branch pipe 93, the fourth branch pipe 94 stretches into the lower part of the secondary sedimentation tank 6, and a fourth valve 941 is arranged on the fourth branch pipe 94; the fifth branch pipe 95 extends into the lower part of the reverse micro-ecological filter bed 7 and is connected with the second aeration system 721, and a fifth valve 951 is arranged on the fifth branch pipe 95. The first branch pipe 91 is used for pre-aerating the water collecting tank 2 and for flushing and dredging the tank bottom of the water collecting tank 2, the second branch pipe 92 is used for aerating the facultative tank 4 and flushing and dredging the bottom of the facultative tank 4, and the fourth branch pipe 94 is used for flushing and dredging the sludge in the secondary sedimentation tank 6. The first valve 911, the second valve 921, the third valve 931, the fourth valve 941, and the fifth valve 951 are all located outside the case 1, which is convenient to operate.

The contact oxidation pond 5 and the reverse micro-ecological filter bed 7 are subjected to blast aeration through a fan so as to ensure sufficient oxygen. And meanwhile, the water collecting tank 2, the facultative tank 4 and the secondary sedimentation tank 6 are provided with a first branch pipe 91, a second branch pipe 92, a fourth branch pipe 94 and other gas flushing pipes, so that flushing and dredging are facilitated, the risk that the treatment effect is reduced due to sludge accumulation of the sewage treatment scale lifting device is reduced, and the maintenance of a post-treatment system is facilitated.

In the sewage treatment scale lifting device of the embodiment, the sludge return pipe 65 is positioned in the box body 1, and the outward bending position of the top of the sludge return pipe 65 is provided with a siphon breaking hole to break the siphon action, thereby reducing the damage to the sludge return equipment 62. The nitrifying liquid reflux pipe 55 is positioned in the box body 1, and a siphon breaking hole is formed at the outward bending position of the top of the nitrifying liquid reflux pipe 55 to break the siphon action, so that the damage to the nitrifying liquid reflux equipment 51 is reduced. The return pipe is in vacuum environment when the return pipe is in return, and the water in the water tank can be sucked into the return pipe reversely when the return pipe stops running due to the siphon effect, so that the return pipe is damaged, and the outer side of the return pipe elbow is provided with holes to destroy the siphon effect.

In the sewage treatment labeling device of this embodiment, the enhanced ecological filter layer 723 includes a pebble layer, an adsorbed gravel layer and a soil matrix layer distributed from bottom to top, and the purified plant layer 724 includes wet-cultured plants such as canna, rhizoma Acori Calami, and iris sibirica.

The sewage treatment label-lifting device of the embodiment further comprises an automatic control system, and the sewage lifting device 22, the nitrifying liquid reflux device 51, the sludge reflux device 62 and the reuse water lifting device 81 are all electrically connected with the automatic control system. The automatic control of the electromechanical equipment in the sewage treatment mark lifting device is realized by arranging the automatic control system, so that the sewage treatment mark lifting device automatically operates, and the operation is simple and convenient.

In the sewage treatment scale lifting device of the embodiment, a sludge discharge system 73 is arranged at the bottom of a reverse micro-ecological filter bed 7, the sludge discharge system 73 comprises a perforated sludge discharge pipe 731 with a 'mesh' -shaped structure, a sludge discharge electric valve 732 and a sludge discharge main pipe 733, the sludge discharge end of the perforated sludge discharge pipe 731 is connected with the sludge discharge main pipe 733, the sludge discharge electric valve 732 is arranged on the sludge discharge main pipe 733, and the sludge discharge electric valve 732 is electrically connected with an automatic control system. The mud is discharged mainly by means of hydraulic pressure and gravity. The sludge discharge system 73 can dredge and remove sludge at the bottom of the filter bed, ensure the activity of the sludge of the filter bed and reduce the clogging of an aeration pipeline. Preferably, the sludge discharge system 73 is located in the purification zone 72.

Preferably, the openings of the perforated sludge discharge pipe 731 are bidirectionally staggered.

In the sewage treatment label-lifting device of the embodiment, a fine filter screen is arranged at the water outlet of the purification area 72 and is used for intercepting phytoplankton in the reverse micro-ecological filter bed 7.

In the sewage treatment label-lifting device of this embodiment, a valve is disposed on the second water outlet pipe 725 to control the depth of the water layer purified by the reverse micro-ecological filter bed 7.

In the sewage treatment standard lifting device of the embodiment, a water collecting tank 2, a contact oxidation tank 5, a secondary sedimentation tank 6, a reverse micro-ecological filter bed 7 and a clean water tank 8 are all provided with liquid level monitors. The liquid level monitor is electrically connected with the automatic control system, and the liquid level monitor collects liquid level signals and transmits the liquid level signals to the automatic control system to control the start and stop of electromechanical equipment in the sewage treatment label lifting device, so that the sewage treatment label lifting device is linked to realize automatic operation.

In the sewage treatment labeling device of the present embodiment, the sewage lifting device 22, the nitrifying liquid reflux device 51, the sludge reflux device 62, and the reuse water lifting device 81 adopt submersible pumps or pipeline centrifugal pumps in actual cases according to the actual situations on site.

The sewage treatment label lifting device of the embodiment further comprises a disinfection dosing mechanism for adding disinfectant into the clean water tank 8, wherein the disinfection dosing mechanism is electrically connected with the automatic control system, and the dosing process is controlled by the automatic control system, so that the device can be used by adopting the existing dosing equipment.

In the sewage treatment lifting device of the embodiment, the lifting basket grating 21 is provided with the guide rail, so that the lifting of the lifting basket grating 21 can be realized, thereby facilitating regular cleaning of grating residues, being convenient to operate and saving labor force.

The working principle of the sewage treatment label-lifting device of this embodiment is as follows: rural sewage enters the device through the collecting pipeline, and the sewage firstly flows through the basket grid 21 to remove larger suspended matters in the sewage, so that subsequent process equipment is protected. The sewage enters the water collecting tank 2 for temporary storage, and the water quality and the water quantity are regulated. The sewage enters a hydrolysis tank 3 through a sewage lifting device 22, so that macromolecular refractory organic matters in the sewage are hydrolyzed and acidified, and degraded into micromolecular organic matters; the sewage enters a facultative tank 4 again, and is mixed with the returned nitrifying liquid to perform denitrification, so that denitrification is realized; then enters a contact oxidation tank 5 to perform oxidation and nitrification of organic matters, and performs aerobic phosphorus absorption in the contact oxidation tank 5 to remove phosphorus by periodically discharging excess sludge; then sewage enters a secondary sedimentation tank 6, sludge and water are separated in the vertical flow sedimentation tank under the action of gravity, and meanwhile, sludge is concentrated, a sludge reflux device 62 is arranged in the secondary sedimentation tank 6, and part of sludge is refluxed to the hydrolysis tank 3 so as to ensure the biochemical sludge quantity and activity; supernatant fluid of the secondary sedimentation tank 6 enters a water inlet area 71 of the reverse micro-ecological filter bed 7 through a third overflow groove 63, and enters a purifying area 72 of the reverse micro-ecological filter bed 7 through a water distribution wall 711; the sewage passes through the pebble layer, the gravel layer and the matrix layer in turn from bottom to top in the purification area 72, is subjected to antigravity filtration, and then passes through the plant purification layer such as canna, and can realize deep absorption and decomposition of organic pollutants, inorganic salt ions and the like in the sewage through the action of microorganisms, the physical action and the plant action, and the effluent enters the clean water tank 8, and is sterilized by adding a disinfectant through a sterilizing and dosing mechanism.

Through the sewage treatment and labeling device of the embodiment, rural sewage can reach the farmland irrigation standard after being treated and can be directly recycled. The sewage treatment of this embodiment carries mark device relates to electromechanical device kind quantity less, and all electromechanical device can realize the linkage through autonomous system, and degree of automation is high, and non-expert skilled person can carry out daily operation management through simple training. The device is added with the dredging pipelines of each process monomer, reduces the clogging problem in the operation of the sewage treatment mark lifting device, and reduces the later maintenance difficulty.

The sewage treatment mark lifting device mainly solves the problems that the system operation is unstable, the electromechanical equipment is blocked by larger suspended matters in sewage, the impact resistance of the sewage treatment mark lifting device is low, the effluent quality is poor, the operation and maintenance of the disposable engineering later period are difficult and the like caused by unstable water supply of rural sewage. Through adopting the sewage treatment of this embodiment to carry mark device, can realize rural sewage treatment system steady operation, reduce the impact of coming aquatic organic matter concentration to the system, effectively reduce pollutant content in the sewage, promote device's treatment effect, improve out water quality of water, area is little, can realize automaticly, convenient operation, and later maintenance is convenient, and comprehensive investment cost is low. Meanwhile, the ecological filter bed can be used for planting plants, so that the ecological landscape aesthetic feeling of rural areas can be improved, and the mess and odor phenomena can be reduced.

Claims (10)

1. The sewage treatment label-lifting device with the biomembrane function is characterized by comprising a box body (1) and a fan air pipe (9), wherein a water collecting tank (2), a hydrolysis tank (3), a facultative tank (4), a contact oxidation tank (5), a secondary sedimentation tank (6), a reverse micro-ecological filter bed (7) and a clean water tank (8) are sequentially arranged in the box body (1) along the transverse conveying direction of sewage; the tops of the water collecting tank (2), the hydrolysis tank (3), the facultative tank (4), the contact oxidation tank (5) and the secondary sedimentation tank (6) are all closed, and the tops of the reverse micro-ecological filter bed (7) and the clean water tank (8) are provided with openings communicated with the outside; a water inlet main pipe (11) and a water outlet main pipe (12) are arranged on the tank body (1), the water inlet main pipe (11) is connected with a basket grid (21) in the water collecting tank (2), and the water outlet main pipe (12) is connected with the clean water tank (8);

the water collecting tank (2) is communicated with the hydrolysis tank (3) through a sewage conveyer, and the water collecting tank (2) conveys sewage to the lower part of the hydrolysis tank (3) through the sewage conveyer;

a water distribution pipe (31) and a first biochemical filler layer (32) are arranged in the hydrolysis tank (3) from bottom to top, the water distribution pipe (31) is connected with the water outlet end of the sewage conveyer, a plurality of water distribution holes are formed in the side wall of the water distribution pipe (31), and sewage in the hydrolysis tank (3) enters the facultative tank (4) through a first overflow groove (33);

a diving stirring device (41) and a second biochemical filler layer (42) are arranged in the facultative tank (4), the diving stirring device (41) is positioned below the second biochemical filler layer (42), and a second water passing hole (43) communicated with the contact oxidation tank (5) is formed in the side wall of the lower part of the facultative tank (4);

a third biochemical filler layer (52) and a first aeration system (54) are arranged in the contact oxidation tank (5), the first aeration system (54) is positioned below the third biochemical filler layer (52), the contact oxidation tank (5) is communicated with the facultative tank (4) through a nitrifying liquid reflux device, and sewage in the contact oxidation tank (5) enters the secondary sedimentation tank (6) through a second overflow tank (53);

a water distribution central cylinder (61) and a sludge reflux device are arranged in the secondary sedimentation tank (6), the side part of the water distribution central cylinder (61) is connected with a water passing pipe (64), the water passing pipe (64) is communicated with a water inlet of the secondary sedimentation tank (6), the upper end of the water distribution central cylinder (61) is fixedly connected with the top wall of the tank body (1), the lower end opening of the water distribution central cylinder (61) extends into the lower part of the secondary sedimentation tank (6), and the secondary sedimentation tank (6) is communicated with the hydrolysis tank (3) through the sludge reflux device;

the reverse micro-ecological filter bed (7) comprises a water inlet area (71) and a purifying area (72) which are horizontally distributed, wherein effluent of the secondary sedimentation tank (6) enters the water inlet area (71) through a third overflow groove (63), and the side wall of the lower part of the water inlet area (71) is communicated with the purifying area (72) through a water distribution flower wall (711); a second aeration system (721), a perforated bottom plate (722), a reinforced ecological filter material layer (723) and a purified plant layer (724) are sequentially arranged in the purification area (72) from bottom to top, a water outlet is formed in the side wall of the upper part of the purification area (72), the water outlet of the purification area (72) is connected with a second water outlet pipe (725), and the water outlet end of the second water outlet pipe (725) extends into the clean water tank (8); the clean water tank (8) is communicated with the water inlet area (71) through a reuse water lifter;

the fan air pipe (9) is communicated with a fan, and a first branch pipe (91), a second branch pipe (92), a third branch pipe (93), a fourth branch pipe (94) and a fifth branch pipe (95) are arranged on the fan air pipe (9); a first valve (911) is arranged on the first branch pipe (91), and the first branch pipe (91) extends into the lower part of the water collecting tank (2); a second valve (921) is arranged on the second branch pipe (92), and the second branch pipe (92) extends into the lower part of the facultative tank (4); a third valve (931) is arranged on the third branch pipe (93), and the third branch pipe (93) extends into the lower part of the contact oxidation pond (5) and is connected with the first aeration system (54); a fourth valve (941) is arranged on the fourth branch pipe (94), and the fourth branch pipe (94) extends into the lower part of the secondary sedimentation tank (6); a fifth valve (951) is arranged on the fifth branch pipe (95), and the fifth branch pipe (95) extends into the lower part of the purification zone (72) and is connected with a second aeration system (721).

2. The sewage treatment and labeling device with a biomembrane function according to claim 1, characterized in that the sewage conveyer comprises a sewage lifting device (22) and a first water outlet pipe (23), the sewage lifting device (22) is positioned at the lower part of the water collecting tank (2), the water inlet end of the first water outlet pipe (23) is connected with the sewage lifting device (22), and the water outlet end of the first water outlet pipe (23) extends into the lower part of the hydrolysis tank (3).

3. The sewage treatment labeling device with a biomembrane function according to claim 1, wherein the nitrifying liquid reflux device comprises nitrifying liquid reflux equipment (51) and a nitrifying liquid reflux pipe (55), the nitrifying liquid reflux equipment (51) is located at the lower part of the contact oxidation tank (5), a water outlet of the nitrifying liquid reflux equipment (51) is connected with the nitrifying liquid reflux pipe (55), a water outlet end of the nitrifying liquid reflux pipe (55) stretches into the facultative tank (4), and a water outlet end of the nitrifying liquid reflux pipe (55) is located above the second biochemical filler layer (42).

4. The sewage treatment scale lifting device with a biomembrane function according to claim 1, characterized in that the sludge reflux device comprises a sludge reflux device (62) and a sludge reflux tube (65), the sludge reflux device (62) is positioned at the bottom of the secondary sedimentation tank (6), a water outlet of the sludge reflux device (62) is connected with the sludge reflux tube (65), a water outlet end of the sludge reflux tube (65) extends into the hydrolysis tank (3), and a water outlet end of the sludge reflux tube (65) is positioned above the first biological filler.

5. The sewage treatment labeling device with a biomembrane function according to claim 1, wherein the reuse water lifter comprises a reuse water lifting device (81), a conveying pipe (82) and a return water pipe (821), a water outlet of the reuse water lifting device (81) is communicated with the return water pipe (821) through the conveying pipe (82), a water outlet end of the return water pipe (821) extends into the water inlet area (71), and a return water valve (822) is arranged on the return water pipe (821).

6. A sewage treatment label-lifting device with a biological membrane function according to claim 1, characterized in that a fine filter screen for trapping phytoplankton is arranged at the water outlet of the purification zone (72).

7. The sewage treatment and labeling device with a biomembrane function as claimed in claim 1, further comprising an automatic control system, wherein the sewage conveyor, the nitrifying liquid reflux device, the sludge reflux device, the reuse water lifting device and the fan are all electrically connected with the automatic control system.

8. The sewage treatment and labeling device with the biomembrane function according to claim 7, wherein a sludge discharge system (73) is arranged at the bottom of the reverse micro-ecological filter bed (7), the sludge discharge system (73) comprises a perforated sludge discharge pipe (731) with a 'mesh' shape, a sludge discharge electric valve (732) and a sludge discharge main pipe (733), the sludge discharge end of the perforated sludge discharge pipe (731) is connected with the sludge discharge main pipe (733) of the tank body (1), the sludge discharge electric valve (732) is arranged on the sludge discharge main pipe (733), and the sludge discharge electric valve (732) is electrically connected with the automatic control system.

9. The sewage treatment label-lifting device with the biomembrane function according to claim 7, wherein the water collecting tank (2), the contact oxidation tank (5), the secondary sedimentation tank (6), the reverse micro-ecological filter bed (7) and the clean water tank (8) are all provided with liquid level monitors, the liquid level monitors are electrically connected with an automatic control system, liquid level signals collected by the liquid level monitors are transmitted to the automatic control system, and the automatic control system controls the starting and stopping of electromechanical equipment in the sewage treatment label-lifting device so that the sewage treatment label-lifting device is linked to realize automatic operation.

10. The sewage treatment labeling device with a biomembrane function according to claim 1, further comprising a disinfection dosing mechanism for dosing disinfectant into the clean water tank (8), wherein the disinfection dosing mechanism is electrically connected with an automatic control system, and the dosing process is controlled by the automatic control system.