CN212269807U

CN212269807U - Integrated sewage treatment system

Info

Publication number: CN212269807U
Application number: CN202021481025.5U
Authority: CN
Inventors: 夏美霞; 黄巧明; 汪龙
Original assignee: Tiantong Food Yichang Co ltd
Current assignee: Tiantong Food Yichang Co ltd
Priority date: 2020-07-23
Filing date: 2020-07-23
Publication date: 2021-01-01
Anticipated expiration: 2030-07-23

Abstract

The utility model provides an integrated sewage treatment system, which comprises a collecting tank, an adjusting tank, a shallow air floating device, a hydrolysis acidification tank, a contact oxidation tank and a secondary sedimentation tank which are communicated by pipelines, wherein a sludge pump for providing power for a next water tank by sewage flow is respectively arranged in each water tank; a sludge pump is arranged in the water; a water diversion port is formed in one side of the water collecting tank, sewage is injected into one end of the water diversion port, and a residue filtering mechanism is arranged in the water diversion port; the adjusting tank, the shallow air flotation device, the hydrolysis acidification tank, the contact oxidation tank and the secondary sedimentation tank are integrally arranged on the water purification platform. The utility model discloses relative prior art's benefit lies in: the integration level is relatively high, and centralized management is facilitated; the integration mode adopts a conventional platform mode instead of a general integrated cabinet, the management is carried out in different areas, the sensors or electromagnetic switches are adopted to carry out unified monitoring in a central control room, the problems are clear at a glance, the shutdown of the whole system is not needed, and the maintenance cost is low; the operating costs are also relatively low.

Description

Integrated sewage treatment system

Technical Field

The utility model relates to a sewage treatment field especially relates to an integrated form sewage treatment system.

Background

In modern industrial production, particularly in food processing, sewage treatment is an important link. The existing sewage treatment is generally carried out after multiple treatments such as physical sedimentation, contact oxidation, secondary sedimentation and the like, and then is discharged, and the mode usually needs a larger place and is inconvenient for centralized management. Some enterprises begin to adopt integrated sewage treatment facilities.

The integration level of the current integrated sewage treatment system is higher, so that some problems exist, which are generally embodied in the following aspects: the maintenance is not facilitated, and the whole machine needs to be stopped for maintenance after the equipment fails, so that the maintenance and the replacement are inconvenient; the environment adaptability is weak, freezing prevention is needed in winter, flood prevention is needed in summer, and the soil needs to be buried deeper in the north and subjected to heat preservation treatment; due to the limitation of the equipment, the equipment can be only used in items with smaller wastewater quantity; the cost accounting for equipment replacement filler and MBR membrane replacement and cleaning is high; the equipment is buried or exposed for a long time, is easy to corrode, and the service life is greatly shortened. Due to comprehensive consideration, the operation cost and the maintenance cost are high. It is therefore desirable to design an integrated sewage treatment system that is relatively inexpensive to operate and easy to maintain.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide an integrated form sewage treatment system, the integrated level is higher relatively, and the running cost is lower, and convenient to overhaul maintains.

The utility model discloses a realize through following technical scheme:

an integrated sewage treatment system comprises a water collecting tank, an adjusting tank, a shallow air flotation device, a hydrolysis acidification tank, a contact oxidation tank and a secondary sedimentation tank which are sequentially communicated by pipelines, wherein a sludge pump for providing power for a next water tank by sewage flow is respectively arranged in each water tank; a sludge pump is arranged in the water; wherein;

a water diversion port is formed in one side of the water collecting tank, sewage is injected into one end of the water diversion port, and a residue filtering mechanism is arranged in the water diversion port;

the regulating tank, the shallow air flotation device, the hydrolysis acidification tank, the contact oxidation tank and the secondary sedimentation tank are integrally arranged on the water purification platform; the water purification platform is a platform arranged above the ground, and is divided into a pool area and a processing control area, wherein the pool area is respectively an adjusting pool, a hydrolysis acidification pool, a contact oxidation pool and a secondary sedimentation pool along the anticlockwise direction; a shallow air flotation device and a spiral shell stacking machine are arranged in the processing control area, the shallow air flotation device is hung on one side, close to the adjusting tank, of the water purification platform through a support, a slag scraping machine is arranged at the top of the shallow air flotation device, the bottom of the shallow air flotation device is connected with an air storage tank and an air compressor through an air pipe, and the air storage tank and the air compressor are arranged on the ground at the bottom of the shallow air flotation device; the stacking machine is arranged on one side of the shallow air floatation device and is connected with a discharge port of the slag scraper through a conveying pipeline; the processing control area is also provided with a plurality of control mechanisms, wherein each control mechanism comprises a fan unit for introducing oxygen into the contact oxidation tank, a sludge reflux pump unit for providing power for the reflux of the sludge in the secondary sedimentation tank to the hydrolysis acidification tank and a chemical adding device for adding a treatment chemical for shallow air floatation, and the fan unit, the sludge reflux pump unit and the chemical adding device are communicated with the corresponding water tank through pipelines.

Further, a sludge tank is arranged at the bottom of the shallow air flotation device, and sludge discharged by the shallow air flotation device is stored in the sludge tank and conveyed to the hydrolysis acidification tank.

Further, the residue filtering mechanism is arranged to be an aluminum slag machine or a grid plate.

Furthermore, stirring mechanisms are arranged in the water collecting tank and the adjusting tank.

Furthermore, the water purification platform is square, and a stair is arranged in the processing control area and leads to the top of the platform; the top of the platform is located between the water pools, pedestrian channels are arranged at the edges of the platform, anti-slip pads are arranged on the pedestrian channels, and guardrails are arranged on two sides of the pedestrian channels.

Furthermore, pipelines for communicating the water tanks are arranged on two sides of the pedestrian passage, and branch pipelines are arranged on the pipelines and extend into the water tanks to be connected with a sludge pump; the pond side still is provided with the support, sets up the hoist engine on the support, and the zip bottom fixed connection of hoist engine is on the pump.

Furthermore, a canopy is arranged at the top of the water purification platform, which is positioned in the processing control area.

Furthermore, a central control room is arranged on one side of the water purification platform, and man-machine interaction equipment and a controller are arranged in the central control room; water level detection sensors are arranged on the water pools, electromagnetic valves are arranged on all pipelines, and electromagnetic control switches are adopted by all pumps and control mechanisms; and the water level detection sensor, the electromagnetic valve and the electromagnetic control switch are all controlled by a central control room.

The utility model discloses relative prior art's benefit lies in: the integration level is relatively high, and centralized management is facilitated; the integration mode adopts a conventional platform mode instead of a general integrated cabinet, the management is carried out in different areas, the sensors or electromagnetic switches are adopted to carry out unified monitoring in a central control room, the problems are clear at a glance, the shutdown of the whole system is not needed, and the maintenance cost is low; the operating costs are also relatively low.

Drawings

Fig. 1 is a schematic diagram of an integrated sewage treatment system according to an embodiment of the present invention.

Fig. 2 is a schematic layout diagram of an integrated sewage treatment system according to an embodiment of the present invention.

Fig. 3 is a schematic view of a bracket layout of an integrated sewage treatment system according to an embodiment of the present invention.

In the figure: 1. a water collecting tank; 2. a regulating tank; 3. a shallow air flotation device; 4. a hydrolysis acidification pool; 5. a contact oxidation pond; 6. A secondary sedimentation tank; 7. a fan unit; 8. an air compressor; 9. a gas storage tank; 10. a sludge tank; 11. a screw stacking machine; 12. a sludge reflux pump; 13. a dosing device; 14. a residue filtering mechanism; 15. a stirring mechanism; 16. a support; 17. a pedestrian passageway; 18. a guardrail; 19. a winch; 20. a sludge pump; 21. a water purification platform.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

An integrated sewage treatment system comprises a water collecting tank 1, an adjusting tank 2, a shallow air flotation device 3, a hydrolysis acidification tank 4, a contact oxidation tank 5 and a secondary sedimentation tank 6 which are sequentially communicated by pipelines, wherein a sludge pump 20 for providing power for a next water tank by sewage flow is respectively arranged in each water tank; the sludge pump 20 is arranged in the water;

as shown in fig. 1, a water diversion port is arranged at one side of the water collecting tank 1, sewage is injected into one end of the water diversion port, and a residue filtering mechanism 14 is arranged in the water diversion port; the residue filtering mechanism 14 can be arranged as a grating plate or a residue filtering machine; one side of the water collecting tank 1 is provided with a square water purifying platform 21 which is higher than the ground; the adjusting tank 2, the shallow air flotation device 3, the hydrolysis acidification tank 4, the contact oxidation tank 5 and the secondary sedimentation tank 6 are integrally arranged on the water purification platform 21; the upper part is divided into a water pool area and a processing control area, wherein the water pool area is respectively provided with a regulating pool 2, a hydrolysis acidification pool 4, a contact oxidation pool 5 and a secondary sedimentation pool 6 along the counterclockwise direction, as shown in figure 2; a shallow air flotation device 3 and a stack snail machine 11 are arranged in the processing control area, the shallow air flotation device 3 is hung on one side, close to the adjusting tank 2, of the water purification platform 21 through a support 16, a slag scraping machine is arranged at the top of the shallow air flotation device 3, the bottom of the shallow air flotation device 3 is connected with an air storage tank 9 and an air compressor 8 through an air pipe, and the air storage tank 9 and the air compressor 8 are arranged on the ground at the bottom of the shallow air flotation device 3; the stacking machine 11 is arranged on one side of the shallow air flotation device 3 and is connected with a discharge port of the slag scraper through a conveying pipeline; the processing control area is also provided with a plurality of control mechanisms, which comprise a fan unit 7 for introducing oxygen into the contact oxidation tank 5, a sludge reflux pump 12 group for supplying power to the hydrolysis acidification tank 4 for the sludge reflux of the secondary sedimentation tank 6 and a dosing device 13 for adding treatment agents for superficial air flotation, wherein the fan unit 7, the sludge reflux pump 12 group and the dosing device 13 are communicated with the corresponding water tank through pipelines. The bottom of the shallow air flotation device 3 is also provided with a sludge tank 10, and the sludge tank 10 stores sludge discharged by the shallow air flotation device 3 and conveys the sludge to the hydrolysis acidification tank 4.

When the device is used, sewage is firstly injected into the water diversion port, and large-scale dregs are filtered out through the residue filtering mechanism 14; then the mixture enters a water collecting tank 1 to be stirred for a period of time, so that the water quality and the water quantity are balanced; the water in the water collecting tank 1 is pressed into the regulating tank 2 under the action of a sludge pump 20, a PH regulator is injected to regulate the PH value, and then the water is pressed into the shallow air flotation device 3 through a lift pump; PAC and PAM are added into the shallow air flotation device 3, are fully mixed by a mixing pipe at the bottom of the air flotation tank, and are then mixed with part of micro bubbles with positive charges generated by the dissolved air system, so that the micro bubbles are adsorbed with pollutants in floccules and wastewater and are bridged into an air flotation water distribution system; the wastewater enters the air floatation tank body through the water distribution system, and the wastewater entering the air floatation tank body reaches zero speed in the water distribution area and the air floatation area through the water distribution system of air floatation and the stepless speed regulating device; the flocculated flocs and the pollutants adsorbed and bridged by the micro-bubbles are quickly subjected to solid-liquid separation under the action of buoyancy and zero speed; floating slag pollutants which are separated and float upwards in a clear water area of the shallow air flotation tank are fished away by a slag scraper, automatically flow to a sludge tank 10 and automatically flow to the floating slag tank under the action of gravity; the clear water separated at the lower layer automatically flows to the hydrolysis acidification tank 4 through a clear water extraction tank pipe below the rotary barrel; scum in the scum pond is sent to the spiral shell stacking machine 11 through a sludge pump 20, filtrate is discharged to the water collecting pond 1 through a trench, and dry sludge is transported outside for landfill or comprehensive treatment.

Since the food wastewater contains a large amount of organic substances, the food wastewater is also hydrolyzed and acidified. The hydrolysis acidification tank 4 is divided into a sludge bed area and a clear water layer area, and sewage to be treated enters the tank and is quickly and uniformly mixed with a sludge bed through a water distributor with a reflecting plate. The sludge bed is thick, similar to a filter layer, so that particulate matter and colloidal matter in the influent water are rapidly trapped and adsorbed. Because the sludge bed contains high-concentration facultative microorganisms, under the anoxic condition in the tank, the intercepted organic substances hydrolyze insoluble organic substances into soluble substances under the action of a large amount of hydrolysis-acid-producing bacteria, and the macromolecular and difficultly biodegradable substances are converted into easily biodegradable substances; meanwhile, the polysaccharide mucilage layer outside the residual sludge (residual microbial membrane) discharged during the backwashing of the biological filter is hydrolyzed, so that the cell wall is opened, the sludge is liquefied and returns to the sewage treatment system again to be metabolized by aerobic bacteria, and the purpose of reducing the volume of the residual sludge is achieved. In the embodiment, the sludge of the sludge layer in the hydrolysis acidification tank 4 has two sources, one is sludge precipitated at the bottom layer of the sludge tank 10 filtered out in the shallow air flotation device 3; the other is sludge produced by sedimentation in the secondary sedimentation tank 6 and is pressed into the hydrolysis acidification tank 4 by a sludge reflux pump 12. Since the hydrolysis acidification period is relatively long, the area of the hydrolysis acidification tank 4 is usually set to be large in order to improve the efficiency.

The contact oxidation pond 5 is a wastewater biochemical treatment mode which has the characteristics of an activated sludge method and a biofilm method. The aeration tank is mainly filled with fillers such as coke, gravel, plastic honeycombs and the like, the fillers are immersed in water, and a blower is used for aerating and oxygenating the bottom of the fillers, so that the aeration tank is called as a blast aeration device; the air can entrain the wastewater to be treated from bottom to top and freely passes through the filter material part to reach the ground, and after the air escapes, the wastewater returns to the bottom of the pool from top to bottom in the filter material compartments. The activated sludge is attached to the surface of the filler and does not flow with water, and the biological membrane is directly stirred by the ascending air flow and is continuously updated, so that the purification effect is improved. The air pipe part of the contact oxidation pond 5 is arranged in the water purification platform 21, the fan is arranged in the processing control area in the form of a fan set 7, and the fan set 7 is mainly used for preventing a part of fans from being standby when the fans are in failure.

The secondary sedimentation tank 6 mainly adopts natural sedimentation, and mainly has the functions of separating sludge, clarifying, concentrating and refluxing the mixed liquor with the activated sludge, and can directly influence the effluent quality and the concentration of the refluxed sludge of the activated sludge system. The precipitated activated sludge is pumped into the hydrolysis acidification tank 4 by a sludge reflux pump 12 group for reuse.

A stair is arranged in the processing control area and leads to the top of the water purification platform 21; the top of the water purification platform 21 is located between the water pools, the edge of the water purification platform 21 is provided with a pedestrian passage 17, the pedestrian passage 17 is provided with an anti-skid pad, and two sides of the pedestrian passage 17 are provided with guardrails 18. Pipelines for communicating the water tanks are arranged on two sides of the pedestrian passage 17, and branch pipelines are arranged to extend into the water tanks and are connected with a sludge pump 20; a bracket 16 is also arranged at the side of the water pool, a winch 19 is arranged on the bracket 16, and the bottom of a zipper of the winch 19 is fixedly connected on the pump. Because the bottom of each water tank is deposited with sludge, the winch 19 can adjust the height of the pump at any time to prevent the pump from being buried in the sludge to lose the effect.

The utility model discloses a preferred embodiment, still be provided with rabbling mechanism 15 in catch basin 1 and equalizing basin 2, like fig. 1, for example spiral mixer can increase the mobility of catch basin 1 and equalizing basin 2, prevents the deposit, can also accelerate the ph regulation in the equalizing basin 2 simultaneously.

In a preferred embodiment of the present invention, a canopy is disposed on the top of the water purification platform 21 in the processing control area; the processing control area is mostly electrical equipment and needs to be provided with waterproof setting.

In a preferred embodiment of the present invention, a central control room is disposed at one side of the water purification platform 21, and a human-computer interaction device (generally, a PC) and a controller are disposed in the central control room; water level detection sensors are arranged on the water pools, electromagnetic valves are arranged on all pipelines, and electromagnetic control switches are adopted by all pumps and control mechanisms; and the water level detection sensor, the electromagnetic valve and the electromagnetic control switch are all controlled by a central control room. This mode can carry out centralized control to water purification system, and each sensor can monitor the operating condition in each pond and each part at any time simultaneously, shows on man-machine interactive interface, and the in time maintenance of being convenient for.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An integrated sewage treatment system is characterized by comprising a collecting tank, an adjusting tank, a shallow air flotation device, a hydrolysis acidification tank, a contact oxidation tank and a secondary sedimentation tank which are sequentially communicated by pipelines, wherein a sludge pump for providing power for a next water tank by sewage flow is respectively arranged in each water tank; a sludge pump is arranged in the water; wherein;

the regulating tank, the shallow air flotation device, the hydrolysis acidification tank, the contact oxidation tank and the secondary sedimentation tank are integrally arranged on the water purification platform; the water purification platform is divided into a water pool area and a processing control area, and the water pool area is respectively provided with an adjusting pool, a hydrolysis acidification pool, a contact oxidation pool and a secondary sedimentation pool along the anticlockwise direction; a shallow air flotation device and a spiral shell stacking machine are arranged in the processing control area, the shallow air flotation device is hung on one side, close to the adjusting tank, of the water purification platform through a support, a slag scraping machine is arranged at the top of the shallow air flotation device, the bottom of the shallow air flotation device is connected with an air storage tank and an air compressor through an air pipe, and the air storage tank and the air compressor are arranged on the ground at the bottom of the shallow air flotation device; the stacking machine is arranged on one side of the shallow air floatation device and is connected with a discharge port of the slag scraper through a conveying pipeline; the processing control area is also provided with a plurality of control mechanisms, wherein each control mechanism comprises a fan unit for introducing oxygen into the contact oxidation tank, a sludge reflux pump unit for providing power for the reflux of the sludge in the secondary sedimentation tank to the hydrolysis acidification tank and a chemical adding device for adding a treatment chemical for shallow air floatation, and the fan unit, the sludge reflux pump unit and the chemical adding device are communicated with the corresponding water tank through pipelines.

2. The integrated sewage treatment system of claim 1, wherein the bottom of the shallow air flotation device is further provided with a sludge tank, and the sludge tank stores sludge discharged by the shallow air flotation device and conveys the sludge to the hydrolysis acidification tank.

3. The integrated sewage treatment system of claim 1 wherein the residue filtering mechanism is configured as an aluminum slag machine or a grid plate.

4. The integrated sewage treatment system of claim 1 wherein the catch basin and the conditioning basin further comprise agitation means.

5. The integrated sewage treatment system of claim 1 wherein the clean water platform is square and the process control area has stairways leading to the top of the clean water platform; the top of the water purification platform is located between the water tanks, pedestrian channels are arranged at the edges of the water purification platform, anti-slip pads are arranged on the pedestrian channels, and guardrails are arranged on two sides of the pedestrian channels.

6. The integrated sewage treatment system of claim 5, wherein pipelines for communicating the water tanks are arranged at two sides of the pedestrian passageway, and branch pipelines are arranged to extend into the water tanks and are connected with a sludge pump; the pond side still is provided with the support, sets up the hoist engine on the support, and the zip bottom fixed connection of hoist engine is on the pump.

7. The integrated sewage treatment system of claim 1, wherein a central control room is arranged at one side of the water purification platform, and man-machine interaction equipment and a controller are arranged in the central control room; water level detection sensors are arranged on the water pools, electromagnetic valves are arranged on all pipelines, and electromagnetic control switches are adopted by all pumps and control mechanisms; and the water level detection sensor, the electromagnetic valve and the electromagnetic control switch are all controlled by a central control room.