CN219326678U

CN219326678U - Sewage treatment system for farm

Info

Publication number: CN219326678U
Application number: CN202320241711.2U
Authority: CN
Inventors: 蔡光斌; 韩朝霞; 蒋鑫
Original assignee: Sichuan Yongyuan Engineering Design Co ltd
Current assignee: Sichuan Yongyuan Engineering Design Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-07-11
Anticipated expiration: 2033-02-17

Abstract

The sewage treatment system comprises a solid-liquid separation tank, a degradation tank, an alkali removal tank, an aeration tank, a sewage tank, a drying device and a humidifying device, wherein the solid-liquid separation tank is provided with a sewage outlet and a liquid outlet, the sewage outlet is used for discharging solid sewage, the liquid outlet is communicated with a liquid inlet of the degradation tank, and the sewage after solid-liquid separation is sent into the degradation tank; the sewage outlet is communicated with the sewage pool through a conveying device, and solid sewage is conveyed into the sewage pool; the liquid outlet of the degradation tank is communicated with the liquid inlet of the alkali removal tank, the liquid outlet of the alkali removal tank is communicated with the liquid inlet of the aeration tank, the liquid outlet of the aeration tank is communicated with the inlet of the hydrothermal device, the outlet of the hydrothermal device is communicated with the inlet of the drying coil, the outlet of the drying coil is communicated with the inlet of the humidifying device, and the drying coil is arranged in the sewage tank; the exhaust port of the humidifying device is arranged in the farm.

Description

Sewage treatment system for farm

Technical Field

The application relates to the field of sewage treatment, in particular to a sewage treatment system for a farm.

Background

With the development of the cultivation technology, the domestic poultry cultivation is gradually changed into large-scale and intensive cultivation, but various problems are caused by the cultivation of the domestic poultry, wherein the biggest problem is the sewage treatment problem, the sewage of the cultivation farm is mainly derived from the cleaning wastewater of houses, drinking water tanks and feed tanks, pollutants in the sewage are mainly composed of silt, poultry manure, poultry feathers, feeds and the like, and bacteria are contained in the manure, if the excrement is directly discharged, on one hand, the pollution of water resources is caused, on the other hand, the waste of the resources is caused, the recycling is not realized, and the cost of the cultivation farm is increased.

In the prior art, culture sewage has a mature treatment scheme, and different sewage treatment processes and systems exist according to the pollutant content in the culture sewage. Patent document CN217377642U discloses a sewage treatment system for a farm, which comprises a collecting tank, a dry-wet separator, a regulating tank, a spiral shell stacking machine, a middle water tank, an up-flow anaerobic sludge bed reactor, a two-stage a/O reactor, a secondary sedimentation tank, a flocculation reaction tank, a flocculation sedimentation tank and a water outlet tank which are sequentially communicated through pipelines, and after treatment, the sewage treatment system reaches the discharge standard, thereby reducing pollution and waste of water resources.

In the prior art, most large-scale farms are closed industrial plants, sewage is passed through a plurality of sewage tanks with a sewage removing function, and water resources are discharged to rivers, lakes and the like after being purified or used for industry and agriculture.

Disclosure of Invention

The utility model provides a sewage treatment system for a farm, which is a system for reutilizing purified water resources.

In order to achieve the above object, the following technical features need to be followed:

the sewage treatment system comprises a solid-liquid separation tank, a degradation tank, an alkali removal tank, an aeration tank, a sewage tank, a drying device and a humidifying device, wherein the solid-liquid separation tank is provided with a sewage outlet and a liquid outlet, the sewage outlet is used for discharging solid sewage, the liquid outlet is communicated with a liquid inlet of the degradation tank, and the sewage after solid-liquid separation is sent into the degradation tank; the sewage outlet is communicated with the sewage pool through a conveying device, and solid sewage is conveyed into the sewage pool;

the liquid outlet of the degradation tank is communicated with the liquid inlet of the alkali removal tank, the liquid outlet of the alkali removal tank is communicated with the liquid inlet of the aeration tank, the liquid outlet of the aeration tank is communicated with the inlet of the hydrothermal device, the outlet of the hydrothermal device is communicated with the inlet of the drying coil, the outlet of the drying coil is communicated with the inlet of the humidifying device, and the drying coil is arranged in the sewage tank; the exhaust port of the humidifying device is arranged in the farm.

As a preferable technical scheme, a solid-liquid separation device is arranged in the alkali removal tank, generated sediment is separated from sewage, a sediment discharge end of the solid-liquid separation device is communicated with the sewage tank through a conveying device, and the separated sediment is conveyed into the sewage tank by the conveying device.

As a preferable technical scheme, the solid-liquid separation device is a grating decontamination machine, the higher end of the grating decontamination machine is a sediment discharge end, a collecting frame is arranged below the discharge end of the grating decontamination machine, the bottom of the collecting frame is in a funnel shape, and the bottom of the collecting frame is provided with a feed inlet of which a valve port is communicated with the conveying device; the alkali removing pool is also internally provided with a chemical agent for reacting alkaline substances in water.

As a preferable technical scheme, the sediment discharge end of the solid-liquid separation device is connected with a conveying device and is a screw conveyor.

As a preferable technical scheme, the hydrothermal device is a steam generating device.

As a preferable technical scheme, the hydrothermal device is communicated with the humidifying device through a steam condensing device.

As a preferred technical scheme, the solid-liquid separation tank comprises a tank body and a screen mesh arranged in the tank body, wherein the screen mesh structure is arranged in the solid-liquid separation tank in an inclined angle, the liquid outlet is positioned below the screen mesh, the sewage outlet is positioned at the lower end of the screen mesh which is obliquely arranged, and dirt separated by the screen mesh is accumulated at the sewage outlet under the action of gravity.

As a preferable technical scheme, the aeration tank comprises a high-level tank and a low-level tank, and a water outlet of the high-level tank is communicated with a water inlet of the low-level tank through a slope; the water outlet of the high-level tank and the water inlet of the low-level tank are provided with valves, the high-level tank is an aeration tank body, the low-level tank is an MBR process tank, and the water outlet of the low-level tank is a liquid outlet of the aeration tank (7).

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

the utility model adopts progressive process, after the separated sewage is treated by various functional tanks, the purified sewage is converted into steam for drying dirt, and the dirt can be used for preparing fertilizer after being dried; and then the used steam is condensed into water and then provided for a humidifying device, and the humidifying device can maintain the humidity in the farm so as to avoid indoor drying and water shortage. The process forms a complete system for sewage treatment, (purified water is prepared into steam-steam release heat to dry dirt-steam is liquefied when meeting cold to form liquid-the liquid is recovered by a humidifying device and reheated and sprayed), and the material part treated in the system is consumed for other functions beneficial to farms, so that the system is more efficient.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a front view of the present utility model;

fig. 3 is a rear view of the present utility model.

Wherein the reference numerals are as follows:

1-solid-liquid separation tank, 2-anaerobic tank, 3-anoxic tank, 4-aerobic tank, 5-alkali removal tank, 6-grid dirt remover, 7-aeration tank, 8-MBR process tank, 9-steam generating device, 10-dirt tank, 11-steam condensing device, 12-humidifying device, 101-dirt conveying channel, 102-screw feeder and 701-blower.

Detailed Description

The utility model provides a sewage treatment device for a farm, which aims to solve the problem of more efficiently treating sewage and utilizing purified sewage, and combines the following embodiments to achieve the aim.

Example 1

According to fig. 1, a sewage treatment system comprises a solid-liquid separation tank 1, a degradation tank, an alkali removal tank 5, an aeration tank 7 and other technical equipment. Wherein the liquid outlet of solid-liquid separation pond 1 passes through the inlet of pipeline pump structure intercommunication to degradation pond, and the liquid outlet of degradation pond passes through the inlet of pipe connection alkali removal pond 5, and the liquid outlet of alkali removal pond 5 passes through the inlet of pipe pump connection aeration tank 7, and other follow-up technical equipment is connected to the liquid outlet of aeration tank 7, and other technical equipment include drying equipment and wetting equipment, and drying equipment, drying equipment connection wetting equipment are directly connected to aeration tank 7.

Further, the separation structure in the solid-liquid separation tank 1 is a filter screen, the filter screen is obliquely arranged in the solid-liquid separation tank, the solid-liquid separation tank is divided into an upper part and a lower part, a normally open sewage outlet is arranged on the tank wall of the solid-liquid separation tank corresponding to the lower position of the filter screen, a liquid outlet of the solid-liquid separation tank is arranged below the filter screen (the bottom of the side wall of the solid-liquid separation tank), the sewage outlet is communicated with an inlet of the sewage conveying channel 101, an outlet of the sewage conveying channel 101 is communicated with a sewage tank 10 on one side, the sewage conveying channel 101 is externally connected with an air pump, sewage intercepted by the filter screen is piled up at the sewage outlet along the oblique filter screen under the action of gravity, and the air pump supplies air from the sewage outlet, and the air pump works to discharge the sewage into the sewage tank 10 through the sewage conveying channel 101.

Specifically, a degradation agent is added in the degradation tank, and the degradation tank has the functions of releasing organic matters, nitrifying ammonia nitrogen and releasing phosphorus, and comprises an anaerobic tank 2, an anoxic tank 3 and an aerobic tank 4 which are sequentially arranged from top to bottom, wherein sewage firstly enters the anaerobic tank 2 to release phosphorus and ammoniate, and most of COD is removed; then enters an anoxic tank 3 for denitrification to desulfur, and simultaneously removes part of BOD, wherein hydrolysis reaction can be carried out to improve the biochemical effect; finally, the wastewater enters an aerobic tank 4 to degrade organic matters, nitrify ammonia nitrogen and degrade phosphorus, so as to achieve preliminary sewage treatment. Further, the liquid outlet of the solid-liquid separation tank 1 is communicated with the liquid inlet of the anaerobic tank 2, the liquid outlet of the anaerobic tank 2 is communicated with the liquid inlet of the anoxic tank 3 through a pipeline pump structure, the liquid outlet of the anoxic tank 3 is communicated with the liquid inlet of the aerobic tank 4 through the same pipeline pump structure, and finally the liquid outlet of the aerobic tank 4 is communicated with the liquid inlet of the alkali removal tank 5. For convenience of description, the liquid inlet of the anaerobic tank 2 is the liquid inlet of the whole degradation tank, and the liquid outlet of the aerobic tank 4 is the liquid outlet of the whole degradation tank.

Still further, be equipped with grid scrubbing machine 6 in the scrubbing pond 5 with degradation pond liquid outlet intercommunication, grid scrubbing machine 6 is 30 angle and installs in scrubbing pond 5, and the higher end of grid scrubbing machine 6 is the discharge end of grid scrubbing machine 6, and the discharge end below of grid scrubbing machine is equipped with collects the frame, and the bottom of collecting the frame is the infundibulate, and the feed inlet of spiral feeder is even connected to the infundibulate bottom of collecting the frame. The discharge port of the spiral feeder is communicated to the sewage pool. The alkali removing tank 5 is internally provided with a reagent for the reaction of alkaline substances in water, the water in the alkali removing tank 5 flows, after the medicine in the water reacts with the alkaline substances in the water to form sediment, the larger sediment can be intercepted by the grid dirt removing machine 6 and transported to the discharge end, and the sediment falls into the collecting frame under the action of gravity and enters the spiral feeder under the action of gravity to be sent into the dirt tank. The generated small sediment cannot be intercepted by the grid dirt remover, and then enters the next process along with sewage through a liquid outlet of the alkali removal tank.

Specifically, the aeration tank 7 communicated with the alkali removal tank 5 is in a stepped tank shape and comprises a high-level tank and a low-level tank. A plurality of ventilating ducts are connected into a high-level tank in the aeration tank 7, the air blower is positioned outside the aeration tank 7, an air inlet of the ventilating duct is connected with an air supply outlet of the air blower 701, the air blower 701 continuously ventilates sewage in the aeration tank 7, supplies oxygen and stirs the interior, discharges unnecessary gas and volatile substances in the water into the air, and enables the microorganism in the water to perform aerobic respiration with maximum benefit, thereby achieving the purpose of removing pollutants. The water outlet of the high-level tank is communicated with the water inlet of the low-level tank through a slope, a valve is arranged between the water outlet of the high-level tank and the water inlet of the low-level tank, the valve is opened to transfer all liquid in the high-level tank into the low-level tank, the low-level tank is an MBR process tank 8, and the MBR process finishes the final purification treatment of sewage (removing small particle sediment or other suspended matters) so that the water quality reaches the optimal state.

Further, the liquid outlet of the MBR process tank 8 is communicated with the feed inlet of the steam generator 9, water reaching the standard after purification is used as a raw material and is supplied to the steam generator 9, the steam generator 9 heats the liquid and then produces steam to be delivered into the sewage tank 10, a plurality of drying coils are further arranged in the sewage tank 10, the inlets of the drying coils are all communicated with the air outlet of the steam generator 9, the outlets of the drying coils are directly communicated with the inlet of the steam condenser 11, the steam generator 9 continuously delivers steam to the drying coils, the drying coils obtain heat energy of the steam to release steam, dry the sewage, then the steam is discharged into the steam condenser 11 communicated with the outlet of the drying coils, the steam is liquefied into liquid after being cooled, and finally is discharged into the humidifying device 12 communicated with the steam condenser 11, the humidifying device 12 discharges the liquid in a spray shape after reheating, and the discharged liquid is sprayed in a spray shape in a farm, so that the humidity in the farm is kept.

The working principle of the utility model is as follows: discharging sewage in a farm into a solid-liquid separation tank 1, primarily separating the sewage by the solid-liquid separation tank 1, discharging larger sewage in the sewage into a sewage tank 10 through a sewage conveying channel 101, and then discharging the sewage into an anaerobic tank 2 through a pipeline pump for ammoniation and ammonia release; then the sewage is discharged into an anoxic tank 3 for denitrification to desulfur; immediately after sewage is discharged into the aerobic tank 4 for water purification treatment, the sewage is discharged into the alkali removal tank 5, alkaline substances in the sewage react with medicines in the tank to form a precipitate in the alkali removal tank 5, the precipitate is discharged into the alkali removal tank 5 through the grid sewage remover 6, then the sewage is discharged into the aeration tank 7, the sewage in the aeration tank 7 is continuously aerated by the blower 701 below the aeration tank 7, finally the sewage is discharged into the sewage tank 10 through the MBR process tank 8 in the aeration tank 7, impurities are removed to obtain purest water, and the impurities separated by the grid sewage remover 6 are discharged into the sewage tank 10 through the spiral feeder 102. Then, pure water is utilized by the steam generator 9, hot water is formed into steam and is conveyed to the drying coil in the dirt pool 10, the drying coil dries dirt or impurities in the dirt pool 10, the steam is finally collected and liquefied into liquid by the steam condenser 11 communicated with the drying coil, the liquid is utilized by the humidifying device 12 below, the liquid is heated and then discharged in a mist form, and the liquid is sprayed into a farm to maintain the humidity of the farm. The dried dirt is manually collected and then some of the dirt is made into fertilizer.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments described above, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present utility model, and these equivalent modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims

1. A plant sewage treatment system, characterized in that: the sewage treatment device comprises a solid-liquid separation tank (1), a degradation tank, an alkali removal tank (5), an aeration tank (7), a sewage tank, a drying device and a humidifying device (12), wherein the solid-liquid separation tank (1) is provided with a sewage outlet and a liquid outlet, the sewage outlet is used for discharging solid sewage, the liquid outlet is communicated with a liquid inlet of the degradation tank, and the sewage after solid-liquid separation is sent into the degradation tank; the sewage outlet is communicated with the sewage pool through a conveying device, and solid sewage is conveyed into the sewage pool;

the liquid outlet of the degradation tank is communicated with the liquid inlet of the alkali removal tank (5), the liquid outlet of the alkali removal tank (5) is communicated with the liquid inlet of the aeration tank (7), the liquid outlet of the aeration tank (7) is communicated with the inlet of the hydrothermal device, the outlet of the hydrothermal device is communicated with the inlet of the drying coil, the outlet of the drying coil is communicated with the inlet of the humidifying device, and the drying coil is arranged in the sewage tank; the exhaust port of the humidifying device is arranged in the farm.

2. A farm sewage treatment system according to claim 1, wherein: the alkali removal tank (5) is internally provided with a solid-liquid separation device, the generated sediment is separated from sewage, the sediment discharge end of the solid-liquid separation device is communicated with the sewage tank through a conveying device, and the separated sediment is conveyed into the sewage tank by the conveying device.

3. A farm sewage treatment system according to claim 2, wherein: the solid-liquid separation device is a grating dirt separator (6), the higher end of the grating dirt separator (6) is a sediment discharge end, a collecting frame is arranged below the discharge end of the grating dirt separator, the bottom of the collecting frame is funnel-shaped, and a valve port is arranged at the bottom of the collecting frame and communicated with a feed inlet of the conveying device; the alkali removing pool (5) is also internally provided with a chemical agent for reacting alkaline substances in water.

4. A farm sewage treatment system according to claim 3, wherein: the sediment discharge end of the solid-liquid separation device is connected with a conveying device which is a screw conveyor (102).

5. A farm sewage treatment system according to claim 3, wherein: the hydrothermal device is a steam generating device (9).

6. A farm sewage treatment system according to claim 4, wherein: the hydrothermal device is communicated with the humidifying device through a steam condensing device (11).

7. A farm sewage treatment system according to claim 1, wherein: the solid-liquid separation tank (1) comprises a tank body and a screen mesh arranged in the tank body, wherein the screen mesh structure is arranged in the solid-liquid separation tank in an inclined angle, the liquid outlet is positioned below the screen mesh, the sewage outlet is positioned at the lower end of the screen mesh which is obliquely arranged, and sewage separated by the screen mesh is accumulated at the sewage outlet under the action of gravity.

8. A farm sewage treatment system according to claim 1, wherein: the aeration tank (7) comprises a high-level tank and a low-level tank, and a water outlet of the high-level tank is communicated with a water inlet of the low-level tank through a slope; the water outlet of the high-level tank and the water inlet of the low-level tank are provided with valves, the high-level tank is an aeration tank body, the low-level tank is an MBR process tank, and the water outlet of the low-level tank is a liquid outlet of the aeration tank (7).