CN111362515A

CN111362515A - Sewage treatment plant based on biological treatment

Info

Publication number: CN111362515A
Application number: CN202010258445.5A
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuhu Yaodi Environmental Protection Technology Co ltd
Current assignee: Wuhu Yaodi Environmental Protection Technology Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-07-03

Abstract

The invention discloses a sewage treatment device based on biological treatment, which belongs to the field of sewage treatment devices and comprises a sewage tank and a water pump, wherein one side of the sewage tank is provided with a bracket, a plurality of water tanks are clamped on the bracket, locking screws are connected between the water tanks and the bracket in a threaded manner, a water guide pipe is connected between one water tank and the sewage tank, an electromagnetic flow valve is connected on the water guide pipe, a rotating shaft is rotatably connected on the water guide pipe, a motor is fixedly connected on the outer wall of the water guide pipe, the power output end of the motor is fixedly connected with the rotating shaft, a plurality of uniformly distributed rotating disks are fixedly connected on the rotating shaft, each rotating disk comprises a plurality of bio-disks, an installation frame is connected between every two adjacent bio-disks, a rubber sealing sheet is fixedly connected at the top end of the installation frame, filter cylinders are arranged on the outer sides of the rotating disks, ensuring that the sewage is fully purified.

Description

Sewage treatment plant based on biological treatment

Technical Field

The invention relates to the field of sewage treatment devices, in particular to a sewage treatment device based on biological treatment.

Background

In the formation and development of cities, rivers are used as important resources and environmental carriers, are related to urban survival, restrict urban development, and are important factors influencing urban styles and beautifying urban environments. The urban river has various ecological functions of supplying water sources, providing greenbelt, protecting environment, transporting, cultural education and the like. Showing irreplaceable significance in the aspects of city construction and city space development expansion. With the acceleration of urbanization pace in China, the land on both sides of rivers is developed and utilized, the functions of the urban rivers are damaged, and a large amount of industrial and domestic sewage is directly discharged into the rivers without being treated, so that river water pollution, water quality deterioration and river ecological environment destruction are caused.

The existing biological rotating disc device is used for sewage treatment, the rotor of the existing biological disc is formed by arranging a plurality of biological discs parallel to a shaft in parallel, and the existing biological rotating disc device has the defect of short flow; in addition, the load of microorganisms on the disc is not too high, the sewage purification efficiency is lower, the purification is insufficient, the volume is large, the cost is higher, the actual operation is complex, and the later maintenance and the cleaning are not convenient.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a sewage treatment device based on biological treatment, which can realize multi-stage purification of sewage through a biological disc in a multi-stage water tank, ensure that the sewage is fully purified, and reduce the occupied area due to the vertical arrangement of the water tank.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A sewage treatment device based on biological treatment comprises a sewage tank and a water pump, wherein a support is arranged on one side of the sewage tank, a plurality of water tanks are clamped on the support, locking screws are connected between the water tanks and the support in a threaded manner, a water guide pipe is connected between one water tank and the sewage tank, an electromagnetic flow valve is connected onto the water guide pipe, a rotating shaft is connected onto the water guide pipe in a rotating manner, a motor is fixedly connected onto the outer wall of the water guide pipe, the power output end of the motor is fixedly connected with the rotating shaft, a plurality of uniformly distributed rotating disks are fixedly connected onto the rotating shaft, each rotating disk comprises a plurality of biological discs, a mounting frame is connected between every two adjacent biological discs, a rubber sealing sheet is fixedly connected onto the top end of the mounting frame, a filter cylinder is arranged on the outer side of each rotating disk, the rubber sealing sheet is attached to the filter cylinder, a plurality, the hole of permeating water is located between two adjacent carousels, adjacent two connect through the aqueduct between the water tank, can realize carrying out multi-stage treatment through the bio-disc to sewage, easily make sewage fully purify.

Further, the last cladding of bio-disc has the pressure oxygen type biomembrane, the last cladding of anaerobism type biomembrane has good oxygen type biomembrane, two equal fixedly connected with a plurality of evenly distributed's water conservancy diversion filter disc on the opposite face of bio-disc, sewage adhere to and form the membrane of attaching to on the biomembrane, purifies sewage through the biomembrane, will adhere to the sewage on the biomembrane and to the water conservancy diversion of water hole department through the water conservancy diversion filter disc, reduce the backward flow of attaching to the sewage on the biomembrane.

Furthermore, the rotating disc is vertically fixed on the horizontal shaft, and 30-40% of the area of the rotating disc is immersed in the water tank, so that the biological membrane is ensured to be fully contacted with the sewage in the water tank.

Further, fixedly connected with level sensor on the inner wall of water tank, the last treater that is connected with of level sensor, water pump, motor and electromagnetic flow valve all with treater electric connection, make the liquid level height in the water tank remain stable through treater control water pump, motor and electromagnetic flow valve, make the carousel fully contact with sewage all the time.

Furthermore, a filter pipe is fixedly connected to the water guide pipe, a plurality of metal filter screens are fixedly connected to the filter pipe, the distance between every two adjacent metal filter screens is 10-15cm, and the metal filter screens pass through the multi-stage metal filter screens.

Further, adjacent two be equipped with the water conservancy diversion awl between the carousel, water conservancy diversion awl fixed connection is in, and the water conservancy diversion awl is located between two adjacent holes of permeating water, easily with sewage water conservancy diversion to the hole department of permeating water.

Furthermore, the water outlet of the water guide pipe is positioned at the two-thirds height of the water tank.

Furthermore, a baffle matched with the filter cylinder is fixedly connected to the top end of the water tank, and a gap between the baffle and the filter cylinder is 0.5-1.2cm, so that splashing of sewage attached to the filter cylinder when the filter cylinder rotates is prevented.

Further, the filter cylinder comprises a pair of sealing discs, the sealing discs are fixedly connected with the rotating shaft 7, a thin-wall net cylinder is fixedly connected between the sealing discs, large-particle impurities are blocked by the thin-wall net cylinder, the biological membrane on the rotating disc is prevented from being covered by a large amount of large-particle dirt to cause failure, and the gap between two connected rotating discs 8 is prevented from being blocked.

A sewage treatment device based on biological treatment comprises the following use methods:

s1, when in use, sewage is precipitated in the sewage tank, and supernatant of the precipitation liquid in the sewage tank is pumped into the water tank through the water guide pipe by the water pump;

s2, accumulating sewage in the water tank, driving the rotating shaft to rotate by the motor, so that the rotating disc is contacted with the sewage in the water tank, filtering the sewage by the rotating disc, attaching the sewage to the bio-disc, filtering the sewage by two layers of biological membranes on the bio-disc, allowing the filtered sewage to flow through a gap between two opposite bio-discs, finally entering the water guide pipe through the water permeable hole on the rotating shaft, filtering the sewage again by the water guide pipe, and finally discharging the sewage through the water discharge pipe on the lowest water tank;

s3, filtering sewage for multiple times through the turnplates on the multiple water tanks, monitoring the liquid level height in the water tanks by the liquid level sensors in the water tanks, sending signals to the processor when the liquid level height is lower than a set value, adjusting the working power of the water pump and the motor by the processor according to the liquid level height, accelerating the water supply rate of the water pump, slowing the rotor rotating speed of the motor, and slowing the rate of the sewage in the water tanks entering the water guide pipe through the biological disc until the water level in the water tanks is restored to a normal liquid level.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) according to the multi-stage water tank sewage treatment device, sewage is treated through the biological membrane on the rotary table, the rotary table is arranged in the multi-stage water tank, the sewage attached to the biological membrane is guided into the water guide pipe in the rotating process of the rotary table, and flows on the biological membrane to be purified by the biological membrane.

(2) This scheme all sets up level sensor in every water tank, adjusts water pump, motor and electromagnetic flow valve through the treater to adjust the inflow of sewage and the carousel rotational speed in the water tank, make the liquid level height in the water tank keep certain, make the bio-disc on the carousel keep certain area and sewage contact, guarantee sewage purification efficiency.

(3) The bio-disc of this scheme is installed on the mounting bracket of pivot, strains a section of thick bamboo and comprises a pair of sealed dish and a thin wall net section of thick bamboo concatenation, and bio-disc and strain a section of thick bamboo and all can dismantle, make things convenient for regular clearance and the maintenance of device.

Drawings

FIG. 1 is a perspective view of a water tank of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view of the water tank of the present invention;

FIG. 4 is a schematic view of the structure at A in FIG. 3;

FIG. 5 is a schematic view of the structure at B in FIG. 3;

FIG. 6 is a cross-sectional view of the present invention at the tank;

FIG. 7 is a schematic view of the structure at C in FIG. 6;

fig. 8 is a schematic circuit diagram of the present invention.

1 sewage tank, 2 water pump, 3 aqueduct, 4 water tank, 5 support, 6 aqueduct, 601 filtering pipe, 602 metal filter screen, 7 rotating shaft, 8 rotating disc, 801 biological disc, 802 mounting frame, 803 rubber sealing sheet, 804 diversion filtering sheet, 9 diversion cone, 10 filter cartridge, 11 electromotor, 12 electromagnetic flow valve, 13 processor.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-3, a sewage treatment device based on biological treatment comprises a sewage tank 1 and a water pump 2, wherein the sewage tank 1 is connected with an external sewage pipe, the sewage tank 1 is used for settling sewage, a support 5 is arranged on one side of the sewage tank 1, a plurality of water tanks 4 are clamped on the support 5, locking screws are connected between the water tanks 4 and the support 5 in a threaded manner, a water guide pipe 3 is connected between one water tank 4 and the sewage tank 1, an electromagnetic flow valve 12 is connected on the water guide pipe 3, a rotating shaft 7 is rotatably connected on the water guide pipe 6, a motor 11 is fixedly connected on the outer wall of the water guide pipe 6, a power output end of the motor 11 is fixedly connected with the rotating shaft 7, and a plurality of uniformly distributed rotating discs 8 are fixedly connected on the.

The rotating disc 8 comprises a plurality of biological discs 801, an installation frame 802 is connected between every two adjacent biological discs 801, a rubber sealing sheet 803 is fixedly connected to the top end of the installation frame 802, a filter cartridge 10 is arranged on the outer side of the rotating disc 8, the rubber sealing sheet 803 is attached to the filter cartridge 10, the biological discs 801 are coated with an oxygen-pressing biological film, the anaerobic biological film is coated with an aerobic biological film, sewage is purified through two layers of biological films, a plurality of uniformly distributed guide filter sheets 804 are fixedly connected to the opposite surfaces of the two biological discs 801, sewage is attached to the biological films to form water-attaching films, the sewage is purified through the biological films, the sewage attached to the biological films is guided to water-permeable holes through the guide filter sheets 804, backflow of the sewage attached to the biological films is reduced, a guide cone 9 is arranged between every two adjacent rotating discs 8, the guide cone 9 is fixedly connected to the rotating shaft 7, and the guide cone 9 is positioned, the guide cone divides the sewage between the pair of biological disks 801, the biological disks 801 on two sides of the divided sewage are close to each other, the sewage is guided to the water permeable holes through the guide cone, the rotating disc 8 is vertically fixed on the horizontal shaft, and 30-40% of the area of the rotating disc 8 is immersed in the water tank 4, so that the biological film is ensured to be fully contacted with the sewage in the water tank 4.

The top end of the water tank 4 is fixedly connected with a baffle matched with the filter cylinder 10, the gap between the baffle and the filter cylinder 10 is 0.5-1.2cm, the splashing of sewage attached to the filter cylinder 10 when the filter cylinder 10 rotates is prevented, a plurality of water permeable holes communicated with the water guide pipe 6 are drilled on the rotating shaft 7, the water permeable holes are positioned between two adjacent rotating discs 8, two adjacent water tanks 4 are connected through the water guide pipe 6, the water guide pipe 6 is fixedly connected with a filter pipe 601, the filter pipe 601 is fixedly connected with a plurality of metal filter screens 602, the distance between two adjacent metal filter screens 602 is 10-15cm, and the water outlet of the water guide pipe 6 is positioned at the two-thirds height of the water tank 4 through the multi-level metal filter screens 602.

According to the invention, sewage is treated by the biofilm on the rotating disc 8, the rotating disc 8 is arranged in the multi-stage water tank 4, the sewage attached to the biofilm is guided into the water guide pipe in the rotating process of the rotating disc 8, and the sewage is purified by the biofilm when flowing on the biofilm.

The filter cartridge 10 comprises a pair of sealing discs which are fixedly connected with the rotating shaft 7, a thin-wall mesh cylinder is fixedly connected between the pair of sealing discs, large-particle impurities are blocked by the thin-wall mesh cylinder, the biological membrane on the rotating disc 8 is prevented from being covered by a large amount of large-particle dirt to be out of work, and the gap between two connected rotating discs 8 is prevented from being blocked.

The bio-disc 801 of the scheme is arranged on the mounting rack 802 of the rotating shaft 8, the filter cartridge 10 is formed by splicing a pair of sealing discs and thin-wall net cylinders, and both the bio-disc 801 and the filter cartridge 10 can be detached, so that the device is convenient to clean and maintain regularly.

Fixedly connected with level sensor on the inner wall of water tank 4, the last treater 13 that is connected with of level sensor, water pump 2, motor 10 and electromagnetic flow valve 12 all with treater 13 electric connection, make the liquid level height in the water tank 4 remain stable through treater 13 control water pump 2, motor 10 and electromagnetic flow valve 12, make carousel 8 fully contact with sewage all the time.

According to the scheme, the liquid level sensors are arranged in each water tank, the water pump 2, the motor 11 and the electromagnetic flow valve 12 are adjusted through the processor 13, so that the water inlet flow of sewage and the rotating speed of the rotary disc 8 in the water tank 4 are adjusted, the liquid level height in the water tank 4 is kept constant, the biological disc 801 on the rotary disc is kept in contact with the sewage in a certain area, and the sewage purification efficiency is guaranteed.

s1, when in use, sewage is precipitated in the sewage tank 1, and supernatant of the precipitation liquid in the sewage tank 1 is pumped into the water tank 4 through the water guide pipe 3 by the water pump 2;

s2, accumulating sewage in the water tank 4, then driving the rotating shaft 7 to rotate by the motor 11, so that the rotating disc 8 is contacted with the sewage in the water tank 4, filtering the sewage through the rotating disc 8, attaching the sewage on the bio-disc 801, filtering the sewage through two layers of biological membranes on the bio-disc 801, enabling the filtered sewage to flow through a gap between the two opposite bio-disc 801, finally entering the water guide pipe 6 through a water permeable hole on the rotating shaft 7, enabling the sewage to enter the water tank 4 of the next stage through the water guide pipe 6 for secondary filtering, and finally discharging the sewage through a water discharge pipe on the water tank 4 of the lowest stage;

s3, sewage is filtered for multiple times through the turntables 8 on the water tanks 4, meanwhile, the liquid level sensors in the water tanks 4 monitor the liquid level height in the water tanks 4, when the liquid level height is lower than a set value, the liquid level sensors send signals to the processor, the processor adjusts the working power of the water pumps 2 and the motors 11 according to the liquid level height, the water supply rate of the water pumps 2 is accelerated, the rotating speed of the rotors of the motors 11 is slowed, and therefore the rate that the sewage in the water tanks 4 enters the water guide pipes 6 through the biological discs is slowed until the water level in the water tanks 4 is restored to a normal liquid level.

The invention treats sewage through the biological membrane on the rotary disc, through arranging the rotary disc 8 with the biological disc 801 in the multi-stage water tank 4, the sewage is guided into the water guide pipe 6 through the biological disk 801 in the rotating process of the rotating disk 8, and the sewage is purified by the biological membrane in the flowing process of the sewage on the biological membrane of the biological disk 8, the number of the water tanks can be automatically set according to the requirement, so that the sewage is purified in multiple stages according to the requirement, the sewage is fully purified, the water tanks are vertically arranged, the occupied area of the device can be reduced, and the sewage can be purified by the controller, the work of the water pump 2, the motor 10 and the electromagnetic flow valve 12 is regulated and controlled according to the liquid level height in the water tank 4, so that the water inlet rate of the water tank and the rotating speed of the turntable 8 are changed, the rotating speed of the turntable 8 is changed, the water guide rate of the bio-disc is changed, therefore, the water inlet and outlet speed of the water tank 4 is changed, and the liquid level height of the water tank is ensured to be kept constant by balancing the water inlet and outlet speed of the water tank.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a sewage treatment plant based on biological treatment, includes sewage jar (1) and water pump (2), its characterized in that: one side of sewage jar (1) is equipped with support (5), the joint has a plurality of water tanks (4) on support (5), threaded connection has locking screw between water tank (4) and support (5), one be connected with aqueduct (3) between water tank (4) and sewage jar (1), be connected with electromagnetic flow valve (12) on aqueduct (3), it is connected with pivot (7) to rotate on aqueduct (6), fixedly connected with motor (11) on the outer wall of aqueduct (6), the power take off end and the pivot (7) fixed connection of motor (11), fixedly connected with a plurality of evenly distributed's carousel (8) on pivot (7), carousel (8) include a plurality of bio-disc (801), adjacent two be connected with mounting bracket (802) between bio-disc (801), the top fixedly connected with rubber gasket (803) of mounting bracket (802), the outside of carousel (8) is equipped with and strains a section of thick bamboo (10), rubber gasket (803) and the laminating of straining a section of thick bamboo (10), it has a plurality of and communicating hole of permeating water of aqueduct (6) to cut on pivot (7), the hole of permeating water is located between two adjacent carousel (8), adjacent two connect through aqueduct (6) between water tank (4).

2. The sewage treatment plant based on biological treatment according to claim 1, wherein: the bio-disc (801) is coated with a pressure oxygen type biological membrane, the anaerobic type biological membrane is coated with an aerobic type biological membrane, and the opposite surfaces of the two bio-discs (801) are fixedly connected with a plurality of uniformly distributed flow guide filter discs (804).

3. The sewage treatment plant based on biological treatment according to claim 1 or 2, wherein said rotating disc (8) is vertically fixed on a horizontal shaft, 30-40% of the area of said rotating disc (8) is submerged in the water tank (4).

4. The sewage treatment plant based on biological treatment according to claim 1, wherein: fixedly connected with level sensor on the inner wall of aqueduct (6), the last treater that is connected with of level sensor, water pump (2) and electromagnetic flow valve (12) all with treater electric connection.

5. The sewage treatment plant based on biological treatment according to claim 1, wherein: the water guide pipe (6) is fixedly connected with a filter pipe (601), the filter pipe (601) is fixedly connected with a plurality of metal filter screens (602), and the distance between every two adjacent metal filter screens (602) is 10-15 cm.

6. The sewage treatment plant based on biological treatment according to claim 1, wherein: two adjacent be equipped with water conservancy diversion awl (9) between carousel (8), water conservancy diversion awl (9) fixed connection is in (7), and water conservancy diversion awl (9) are located between two adjacent holes of permeating water.

7. The sewage treatment device based on biological treatment according to claim 1, wherein: the water outlet of the water guide pipe (6) is positioned at the two-thirds height of the water tank (4).

8. The sewage treatment device based on biological treatment according to claim 1, wherein: the top end of the water tank (4) is fixedly connected with a baffle matched with the filter cartridge (10), and the gap between the baffle and the filter cartridge is 0.5-1.2 cm.

9. The sewage treatment device based on biological treatment according to claim 1, wherein: the filter cartridge (10) comprises a pair of sealing discs, and a thin-wall mesh cylinder is fixedly connected between the pair of sealing discs.

10. A biological treatment based wastewater treatment plant according to claims 1-9 and characterized in that: the using method comprises the following steps:

s1, when the sewage treatment device is used, sewage is precipitated in the sewage tank (1), and supernatant of a precipitation liquid in the sewage tank (1) is pumped into the water tank (4) through the water guide pipe (3) by the water pump (2);

s2, sewage is accumulated in the water tank (4), then the motor (11) drives the rotating shaft (7) to rotate, so that the rotating disc (8) is in contact with the sewage in the water tank (4), the sewage is filtered through the rotating disc (8), the sewage is attached to the biological discs (801), the sewage is filtered through two layers of biological membranes on the biological discs (801), the filtered sewage flows through a gap between two opposite biological discs (801), finally enters the water guide pipe (6) through a water permeable hole on the rotating shaft (7), the sewage enters the next-stage water tank (4) through the water guide pipe (6) to be filtered again, and finally is discharged through a drain pipe on the lowest-stage water tank (4);

s3, sewage is filtered for multiple times through the turnplates (8) on the water tanks (4), meanwhile, the liquid level height in the water tanks (4) is monitored by the liquid level sensors in the water tanks (4), when the liquid level height is lower than a set value, the liquid level sensors send signals to the processor, the processor adjusts the working power of the water pumps (2) and the motors (11) according to the liquid level height, the water supply rate of the water pumps (2) is accelerated, the rotating speed of the rotors of the motors (11) is slowed down, and therefore the speed of the sewage in the water tanks (4) entering the water guide pipes (6) through the biological discs is slowed down until the water level in the water tanks (4) is restored to the normal liquid level.