CN215250258U - Non-point source pollution collecting and processing system for livestock farm - Google Patents
Non-point source pollution collecting and processing system for livestock farm Download PDFInfo
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- CN215250258U CN215250258U CN202121064871.1U CN202121064871U CN215250258U CN 215250258 U CN215250258 U CN 215250258U CN 202121064871 U CN202121064871 U CN 202121064871U CN 215250258 U CN215250258 U CN 215250258U
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Abstract
The utility model discloses a livestock and poultry farm non-point source pollution collection processing system belongs to the water environment and synthesizes and administers technical field, has solved traditional sewage treatment process and has that the scrubbing ability is lower, investment and running cost are high, handle problem not up to standard. The utility model discloses a layering that connects gradually filters and tentatively subducts unit, anaerobic fermentation unit, aeration oxygenation unit and constructed wetland unit, and the layering filters the filter material that tentatively subducts the unit and include laying in the filter-tank of plant, and the filter material is by supreme gravel layer, volcanic rock grained layer, zeolite layer and the no sand concrete layer of including in proper order down, and gravel layer bottom is equipped with the floral tube, and the floral tube accesss to anaerobic fermentation unit. The utility model discloses with birds poultry excrement separation processing, after prefiltration handles, carry out anaerobic fermentation, aeration deodorization, discharge constructed wetland at last and handle, the small investment, with low costs, management convenience, treatment effect are good, and the marsh gas that produces moreover can supply with fuel to gain comprehensive treatment benefit.
Description
Technical Field
The utility model belongs to the technical field of water environment is synthesized and is administered, concretely relates to birds animal farm non-point source pollution collection processing system.
Background
In recent years, with the development of economy in China and the continuous improvement of the physical living standard of people, the physical life and the eating habits of people are greatly improved, the mass livestock breeding industry is gradually increased, the demand of poultry meat products is also continuously increased, and the breeding industry is promoted to develop towards the large-scale and intensive direction. In the livestock and poultry industryAt the same time, the problem of water pollution caused by the discharge of animal wastes is also generated. These pollutants are mainly concentrated in a short time, large in the amount of wastewater discharged, and contain high concentrations of COD and TN (mainly NH)3N) and TP, the quality of the discharged water of the farm does not reach the standard, so that the water body is eutrophicated, and the water resource is polluted. Poultry and livestock feces have become the second major agricultural pollution source affecting water quality. The current common treatment methods mainly aiming at the pollutants are as follows: (1) use as a fuel: the livestock manure and other organic waste materials are subjected to anaerobic fermentation to generate biogas which is used as a living and production fuel and can also be used for power generation; or the dried excrement is directly used as fuel; (2) as silage: for feeding cattle, fish, etc.; (3) as a fertilizer: the excrement of the livestock is a good organic fertilizer, and can improve the soil structure, the soil fertility and the like.
The traditional process for treating sewage has low operation load, and the concentration of effluent pollutants is difficult to reach the discharge standard, thereby causing water source pollution. Low decontamination capability, high investment cost and high operation cost, and the treated sewage is difficult to discharge after reaching the standard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a birds animal farm non-point source pollutes collection processing system to solve traditional sewage treatment process and have that the scrubbing ability is lower, investment and running cost are high, handle substandard problem.
The technical scheme of the utility model is that: the utility model provides a birds animal farm non-point source pollutes and collects processing system, filters the preliminary unit of subduing, anaerobic fermentation unit, aeration oxygenation unit and constructed wetland unit including the layering that connects gradually, and the preliminary unit of subduing of layering filters includes the filter material of laying in the filter-tank of plant, and the filter material is by supreme sand gravel layer, volcanic rock grained layer, zeolite layer and the no sand concrete layer of including in proper order down, and sand gravel layer bottom is equipped with the floral tube, and the floral tube accesss to anaerobic fermentation unit.
As the further improvement of the utility model, the anaerobic fermentation unit comprises an anaerobic fermentation tank and a submersible sewage pump, the anaerobic fermentation tank is communicated with the perforated pipe, the submersible sewage pump is arranged in the anaerobic fermentation tank, the output end of the submersible sewage pump is provided with a first water distribution pipe, and the first water distribution pipe is communicated with the aeration and oxygenation unit.
As a further improvement of the utility model, the anaerobic fermentation unit also comprises an air tank which is communicated with the anaerobic fermentation tank through an air inlet pipe.
As a further improvement of the utility model, the anaerobic fermentation unit also comprises a controller, a liquid level switch is arranged in the anaerobic fermentation tank, and the controller is respectively connected with the liquid level switch and the submersible sewage pump.
As a further improvement, the liquid level switch adopts a liquid level float switch.
As a further improvement of the utility model, the aeration oxygenating unit comprises an aeration oxygenating reaction tank and an aerator, the output end of the aerator is connected with an aeration disc, the aeration disc is provided with a plurality of and uniform distribution in the bottom of the aeration oxygenating reaction tank, the bottom of the aeration oxygenating reaction tank is provided with a second water distribution pipe, the second water distribution pipe leads to the constructed wetland unit, and the second water distribution pipe is provided with a valve.
As a further improvement of the utility model, the aeration and oxygenation reaction tank is connected with a deodorization device.
The utility model has the advantages that: the utility model separates livestock excrement, after the preliminary filtration treatment, carries out anaerobic fermentation and aeration deodorization, and finally discharges artificial wetland for treatment. In the layered filtering primary reduction unit, zeolite has adsorption, screening, anion and cation exchange and catalytic properties, can absorb ammonia nitrogen, organic matters and heavy metal ions in water, effectively reduces the toxicity of hydrogen sulfide at the bottom of the pool, and adjusts the pH value; the volcanic rock particles have larger pores, are easy to form a microbial biofilm, and carry out primary treatment and filtration on elements such as nitrogen, phosphorus and the like in the excrement liquid. After the excrement is subjected to primary filtration treatment, liquid enters the anaerobic fermentation unit through the floral tube, and solid excrement is retained in the farm and subjected to solidification treatment. In the anaerobic fermentation unit, excrement liquid passes through a hydrolysis stage, an acidification stage and a gasification stage of microorganism anaerobic bacteria to convert organic matters into biogas, and the biogas can be stored by a gas storage tank to be used as fuel. The liquid of the excrement after anaerobic fermentation is pumped to aeration and aeration by a submersible sewage pumpAn oxygen unit, an aeration oxygen increasing unit and an aerator which can improve the oxygen concentration in water and oxidize H generated during the anaerobic degradation of organic matters2S、CH4、S, FeS and other substances causing black and odorous water can also achieve the purposes of removing iron and manganese and promoting aerobic microorganisms to degrade organic matters. The liquid treated by the three units is controlled and discharged to the artificial wetland unit through the valve on the second water distribution pipe, and the artificial wetland system can treat the untreated liquid, so that the liquid is finally discharged up to the standard, and the possibility of water body pollution is reduced. The utility model adopts anaerobic fermentation and aeration oxygenation technology to treat the livestock manure, which not only has less investment, low cost, convenient management and good treatment effect, but also can supply the produced methane with fuel, thereby obtaining comprehensive treatment benefit.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a farm; 2-a sand-free concrete layer; 3-a zeolite layer; 4-volcanic rock granular layer; 5-a gravel layer; 6-a filter tank; 7-an air purification device; 8-floral tube; 9-a second water distribution pipe; 10-anaerobic fermentation tank; 11-a controller; 12-a submersible sewage pump; 13-a liquid level switch; 14-an air inlet pipe; 15-gas storage tank; 16-an aeration oxygenation reaction tank; 17-an aerator; 18-an aeration disc; 19-a deodorizing device; 20-a valve; 21-artificial wetland unit; 22-a layered filtration primary abatement unit; 23-an anaerobic fermentation unit; 24-an aeration oxygenation unit; 25-first water distribution pipe.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
A filter tank 6 and an air purification device 7 are arranged in a common farm 1, livestock and poultry stand on the filter tank 6, and excrement of the livestock and poultry leaks into the lower part of the filter tank 6.
The utility model discloses as shown in fig. 1, a birds animal farm non-point source pollutes collection processing system, including the layering filtration that connects gradually preliminarily subduct unit 22, anaerobic fermentation unit 23, aeration oxygenation unit 24 and constructed wetland unit 21, the layering filtration preliminarily subducts the filter material that unit 22 includes laying in the filter tank 6 of plant 1, the filter material is by supreme gravel layer 5 that includes in proper order down, volcanic rock grained layer 4, zeolite layer 3 and no sand concrete layer 2, 5 bottoms on gravel layer are equipped with floral tube 8, floral tube 8 accesss to anaerobic fermentation unit 23.
The anaerobic fermentation unit 23 comprises an anaerobic fermentation tank 10 and a submersible sewage pump 12, the anaerobic fermentation tank 10 is communicated with the floral tube 8, the submersible sewage pump 12 is arranged in the anaerobic fermentation tank 10, the output end of the submersible sewage pump 12 is provided with a first water distribution pipe 25, and the first water distribution pipe 25 leads to the aeration oxygenation unit 24.
The anaerobic fermentation unit 23 further comprises an air storage tank 15, and the air storage tank 15 is communicated with the anaerobic fermentation tank 10 through an air inlet pipe 14.
The anaerobic fermentation unit 23 further comprises a controller 11, a liquid level switch 13 is arranged in the anaerobic fermentation tank 10, and the controller 11 is respectively connected with the liquid level switch 13 and the submersible sewage pump 12. The liquid level switch 13 adopts a liquid level float switch.
The aeration oxygenation unit 24 comprises an aeration oxygenation reaction tank 16 and an aerator 17, the output end of the aerator 17 is connected with an aeration disc 18, the aeration disc 18 is provided with a plurality of aeration discs which are uniformly distributed at the bottom of the aeration oxygenation reaction tank 16, the bottom of the aeration oxygenation reaction tank 16 is provided with a second water distribution pipe 9, the second water distribution pipe 9 leads to the artificial wetland unit 21, and the second water distribution pipe 9 is provided with a valve 20.
The aeration oxygenation reaction tank 16 is connected with a deodorization device 19.
Firstly, the livestock excrement is separated and filtered to primarily reduce organic matters, TP and TN (mainly NH) in the animal excrement3N), then decomposing and consuming organic matters through two stages of anaerobic fermentation and aeration oxygenation, finally discharging to the artificial wetland, purifying residual pollutants again by using plants, and discharging after the water body reaches the standard.
In the primary layered filtration abatement unit 22, the sand-free concrete layer 2 plays a role in solid-liquid separation of excrement; the volcanic rock granular layer 4 and the zeolite layer 3 play a role in primarily filtering and reducing pollutants. Liquid excrement flows downwards through the sand-free concrete layer 2 and is subjected to primary treatment through the zeolite layer 3 and the volcanic rock particle layer 4, the zeolite has large holes and can adsorb, screen, exchange anions and cations and have catalytic performance, the zeolite can absorb ammonia nitrogen, organic matters and heavy metal ions in water, the toxicity of hydrogen sulfide at the bottom of the pool can be effectively reduced, the pH value is adjusted, and microorganisms are easy to grow, reproduce and form a biomembrane on the surface of the volcanic rock with rough and microporous surfaces. Animal excrements primarily treated by the zeolite layer 3 and the volcanic granular layer 4 are in the bottom sand gravel layer 5, the sand gravel layer 5 plays a role of water permeation, and liquid enters the anaerobic fermentation unit 23 through the perforated pipe 8.
The liquid excrement treated by the layered filtering primary reduction unit 22 enters the anaerobic fermentation tank 10 for anaerobic fermentation, the biogas generated in the anaerobic fermentation process enters the gas storage tank 15 through the gas inlet pipe 14 for storage, and the biogas can be reused as fuel. When the liquid level of the liquid in the anaerobic fermentation tank 10 gradually rises to the liquid level switch 13, the liquid level switch 13 feeds back a signal to the controller 11, the controller 11 controls to start the submersible sewage pump 12, and the submersible sewage pump 12 pumps the liquid after anaerobic fermentation to the aeration oxygenation unit 24 through the first water distribution pipe 25.
The air is pressurized by the aerator 18 and then is aerated and oxygenated by the aeration disc 22, and the liquid after anaerobic fermentation is aerated and oxygenated in the aeration and oxygenation reaction tank 16, so that the microorganisms are ensured to have enough oxygen for substance metabolism and the oxidative decomposition of organic matters in the sewage. The air with peculiar smell is discharged through the deodorization equipment 19 after aeration, thereby reducing the environmental pollution.
When the liquid after aerobic reaction reaches a certain amount, the valve 20 is opened, the sewage enters the artificial wetland unit 21 through the second water distribution pipe 9, and the effect of removing pollutants reaches the standard by utilizing the absorption of plants on nitrogen and phosphorus, and then the sewage is discharged.
The utility model discloses through "filter-preliminary reduction-anaerobic fermentation-aeration oxygenate-constructed wetland" a series of processes with the liquid in the animal excrement handle, through filtering separation animal waste, with animal excrement through anaerobic fermentation, aeration oxygenation, deodorization, purify through constructed wetland at last, greatly reduced the pollutant get into the risk that the river course arouses water eutrophication.
Examples 1,
The size of the farm 1 is determined according to the actual situation. The thickness of the sand-free concrete layer 2 is 20-30 cm. The filling thickness of the volcanic rock granular layer 4 and the zeolite layer 3 is 20-40 cm. The thickness of the gravel layer 5 is 20-30 cm. The diameter of the perforated pipe 8 is 100-400 mm, the diameter of holes in the perforated pipe 8 is 20-50 mm, the holes are arranged in a quincunx shape, and the hole intervals are 20-40 cm. The size of the anaerobic fermentation tank 10 is determined according to the discharge capacity of the raised livestock, and the anaerobic fermentation tank is made of reinforced concrete. The intake pipe 14 is made of PE.
The utility model discloses a work progress as follows:
And 2, filling materials, namely filling materials in the order of a gravel layer 5, a volcanic rock particle layer 4, a zeolite layer 3 and a sand-free concrete layer 2 from bottom to top after the concrete of the filter tank 6 is hardened, and reserving a perforated pipe 8 in the gravel layer 5.
And 3, excavating an anaerobic fermentation tank 10 in the pouring anaerobic fermentation unit 23 and an aeration oxygenation tank 16 in the aeration oxygenation unit 24, determining the sizes according to the amount of sewage discharged by the farm 1, and reserving holes of the perforated pipe 8, the air inlet pipe 14, the first water distribution pipe 25, the second water distribution pipe 9 and the deodorization equipment 19 when pouring concrete. After the concrete is hardened, a submersible sewage pump 12, a first water distribution pipe 25 and a liquid level switch 13 are arranged in the anaerobic fermentation tank 10 and are connected with a controller 11.
And 4, installing an aerator 17 and an aeration disc 18 in the aeration and oxygenation tank 16, and installing a deodorization device 19.
And 5, installing a second water distribution pipe 9 through the reserved hole, installing a valve 20 on the second water distribution pipe 9, and sealing the connection part of the pipeline and each reaction tank to prevent water leakage.
And 6, constructing an artificial wetland unit 21, planting perennial herbaceous plants in the artificial wetland, and selecting plants with special absorption effects on pollutants such as nitrogen, phosphorus and the like from the herbaceous plants.
Claims (7)
1. The utility model provides a birds animal farm non-point source pollution collects processing system which characterized in that: including the layering filtration preliminary reduction unit (22), anaerobic fermentation unit (23), aeration oxygenation unit (24) and constructed wetland unit (21) that connect gradually, the layering filters preliminary reduction unit (22) and includes the filter material of laying in filter tank (6) of plant (1), the filter material is by supreme sand gravel layer (5), volcanic rock grained layer (4), zeolite layer (3) and no sand concrete layer (2) of including in proper order down, and sand gravel layer (5) bottom is equipped with floral tube (8), and floral tube (8) access to anaerobic fermentation unit (23).
2. The livestock farm non-point source pollution collection and treatment system according to claim 1, wherein: anaerobic fermentation unit (23) are including anaerobic fermentation pond (10) and stealthily dirty pump (12), anaerobic fermentation pond (10) are linked together with floral tube (8), stealthily dirty pump (12) are established in anaerobic fermentation pond (10), and the output of stealthily dirty pump (12) is equipped with first distributing pipe (25), and first distributing pipe (25) lead to aeration oxygenation unit (24).
3. The livestock farm non-point source pollution collection and treatment system according to claim 2, wherein: the anaerobic fermentation unit (23) also comprises an air storage tank (15), and the air storage tank (15) is communicated with the anaerobic fermentation tank (10) through an air inlet pipe (14).
4. The livestock farm non-point source pollution collection and treatment system according to claim 3, wherein: the anaerobic fermentation unit (23) further comprises a controller (11), a liquid level switch (13) is arranged in the anaerobic fermentation tank (10), and the controller (11) is connected with the liquid level switch (13) and the submersible sewage pump (12) respectively.
5. The livestock farm non-point source pollution collection and treatment system according to claim 4, wherein: the liquid level switch (13) adopts a liquid level float switch.
6. The livestock farm non-point source pollution collection and treatment system according to any one of claims 2-5, wherein: the aeration oxygenation unit (24) comprises an aeration oxygenation reaction tank (16) and an aerator (17), the output end of the aerator (17) is connected with an aeration disc (18), the aeration disc (18) is provided with a plurality of and uniformly distributed at the bottom of the aeration oxygenation reaction tank (16), the bottom of the aeration oxygenation reaction tank (16) is provided with a second water distribution pipe (9), the second water distribution pipe (9) leads to the artificial wetland unit (21), and the second water distribution pipe (9) is provided with a valve (20).
7. The livestock farm non-point source pollution collection and treatment system according to claim 6, wherein: the aeration and oxygenation reaction tank (16) is connected with a deodorization device (19).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121064871.1U CN215250258U (en) | 2021-05-18 | 2021-05-18 | Non-point source pollution collecting and processing system for livestock farm |
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| CN202121064871.1U CN215250258U (en) | 2021-05-18 | 2021-05-18 | Non-point source pollution collecting and processing system for livestock farm |
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| CN215250258U true CN215250258U (en) | 2021-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045146A (en) * | 2021-05-18 | 2021-06-29 | 中国市政工程西北设计研究院有限公司 | Non-point source pollution collecting and treating system for livestock farm and construction method thereof |
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2021
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113045146A (en) * | 2021-05-18 | 2021-06-29 | 中国市政工程西北设计研究院有限公司 | Non-point source pollution collecting and treating system for livestock farm and construction method thereof |
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