CN112811733A - Livestock breeding sewage treatment device and method - Google Patents

Livestock breeding sewage treatment device and method Download PDF

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Publication number
CN112811733A
CN112811733A CN202110026446.1A CN202110026446A CN112811733A CN 112811733 A CN112811733 A CN 112811733A CN 202110026446 A CN202110026446 A CN 202110026446A CN 112811733 A CN112811733 A CN 112811733A
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packing layer
treatment
sewage
chamber
tank
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CN202110026446.1A
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不公告发明人
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Luo Honghu
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Luo Honghu
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/02Odour removal or prevention of malodour
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae

Abstract

The invention discloses a livestock breeding sewage treatment device and method, and belongs to the technical field of breeding sewage treatment. The device comprises an underground pretreatment tank, a biological treatment tank and a wetland pool which are sequentially connected through pipelines; the method comprises the following steps: the method comprises the steps of constructing a sewage treatment system; underground pretreatment; performing aboveground biological treatment; fourthly, ecologically processing; and fifthly, recycling. The invention carries out underground closed type pretreatment on the culture sewage to preliminarily treat the culture sewage, thereby avoiding influencing the surrounding soil environment and air environment and improving the space utilization rate; the treatment rate of sewage is accelerated through aboveground biological treatment, the contents of COD, TNH3-N and the like are reduced, and the treatment of the culture sewage is further deepened; performing ecological purification treatment by using a multi-stage composite wetland pool, and inputting the treated water into a fishpond for aquaculture to form a water recycling mode; a plurality of auxiliary industrial chains are formed while the livestock breeding sewage is treated, and a circular sustainable agricultural mode integrating livestock aquaculture and planting is formed.

Description

Livestock breeding sewage treatment device and method
Technical Field
The invention belongs to the technical field of livestock breeding, and particularly relates to a livestock breeding sewage treatment device and method.
Background
At present, with the continuous increase of human demand for meat and egg foods, the livestock and poultry breeding industry develops rapidly, the livestock and poultry breeding industry is large-scale, specialized and intensive, the breeding industry breaks away from the planting industry and becomes a relatively independent industry, the environmental problems brought therewith are more and more serious, a large amount of feces cannot be recycled and comprehensively utilized and can not be returned to the field to be absorbed in time, and various components contained in the feces are directly discharged without being treated, so that the environment is polluted. The current sewage treatment technology of livestock and poultry farm is complicated, investment and working costs are high, and economic benefits of the farm are reduced. The breeding manure treatment also has the problems of disjointed farming and pasturing, insufficient planting and breeding combination, lack of manure treatment modes suitable for different areas, unsmooth resource utilization and the like. Because the livestock and poultry breeding industry has low profit and large risk, the pollution prevention and control can not simply go the way of industrial pollution and urban pollution prevention and control in order to better treat the livestock and poultry breeding sewage. A water-saving culture mode is explored, and research and development are focused on a new sewage treatment method and a new material which are simpler, more convenient, strong in applicability and low in cost; the research and popularization of the way, technology, method and mode for recycling the livestock and poultry breeding feces are enhanced, and an economic applicable mode which accords with the regional characteristics is explored.
The discharge amount of the livestock and poultry breeding sewage is large and centralized, wherein the contents of COD, TNH3-N, TP and the like are high, the sewage can be discharged after reasonable treatment, otherwise, the peripheral environment can be influenced, and the health of people and livestock can be even endangered. The breeding sewage is rich in nutrient substances, part of the breeding sewage can be utilized by overground crops, and simultaneously, part of microorganisms in the soil can be decomposed, so that the soil has certain bearing and digestion capabilities on the livestock and poultry breeding sewage, but if the breeding sewage is directly irrigated in a large quantity, the breeding sewage exceeds the self-cleaning capability of the soil, soil pore blockage can be caused, the soil quality is influenced, the soil environment is deteriorated, and the crop growth is influenced. A large amount of pathogenic bacteria can be bred by the accumulation of a large amount of organic substances in the soil, so that after the crop pest and livestock breeding sewage enters a water body, nitrogen and phosphorus are continuously accumulated, and algae are continuously proliferated to cause water eutrophication. In addition, dissolved oxygen in water is consumed by decomposition of a large amount of organic substances, aquatic plants and fishes die due to oxygen deficiency, the organic substances are decomposed under the oxygen deficiency condition, and malodorous substances such as H2S and NH3 are generated. Persistent organic pollution deteriorates water quality and is difficult to treat. A large amount of pathogenic bacteria and parasitic ova exist in high-concentration organic sewage generated by livestock and poultry breeding, and if the pathogenic bacteria enter the environment without harmless treatment, the pathogenic bacteria can cause large-area spreading and development of livestock and poultry infectious diseases and parasites, and the livestock and poultry production can be directly influenced.
The sewage yield is related to factors such as design of a plant house, production mode and the like. In the culture production process, the culture pollution organic matter content and the total amount of sewage are reduced by selecting a proper production process and a dung cleaning mode, implementing measures of rainwater and sewage diversion, reducing water drinking nozzle dripping and the like. Large-scale enterprises can build treatment facilities by themselves, medium and small-scale farms can jointly build or entrust specialized companies due to the fact that the medium and small-scale farms do not have waste treatment capacity, and the links of collecting, storing, transporting and treating the excrement are perfected. The dry-wet separation of the manure is carried out, the dry manure can be absorbed by farmlands after composting, the sewage can be used for irrigation or discharged after reaching the standard after fermentation treatment, and the generated biogas and biogas manure can be fully utilized.
Disclosure of Invention
The invention aims to solve the technical problems that the existing livestock breeding sewage treatment equipment is high in investment and operation cost, complex in process and difficult to popularize and apply on a large scale, and provides a livestock breeding sewage treatment device and a method.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a sewage treatment device for livestock breeding comprises an underground pretreatment tank, a biological treatment tank and a wetland pool which are sequentially connected through pipelines, wherein a first partition plate and a third partition plate are arranged in the underground pretreatment tank from left to right, an inner cavity of the underground pretreatment tank is sequentially divided into an autonomous settling chamber, an artificial settling deodorizing chamber and an anaerobic treatment chamber, water through holes are formed in the first partition plate and the third partition plate, a liquid medicine tank is arranged outside the top of the underground pretreatment tank, a second partition plate is arranged in the liquid medicine tank, the inner cavity of the liquid medicine tank is divided into a flocculating liquid storage chamber and a deodorizing liquid storage chamber by the second partition plate, a flocculating spray pipe and a deodorizing spray pipe are arranged in the artificial settling deodorizing chamber, the flocculating spray pipe and the deodorizing spray pipe are respectively communicated with the flocculating liquid storage chamber and the deodorizing liquid storage chamber through pipelines, sewage cleaning ports are formed in the top walls of the autonomous settling chamber and the artificial settling deodorizing chamber, anaerobic active biological fillers are added in the anaerobic treatment chamber, a lifting pump is arranged on a pipeline between the pretreatment tank and the biological treatment tank, an aerobic active biological packing layer and an aeration pipe are arranged in the biological treatment tank, and the aeration pipe is connected with an aeration fan arranged outside the biological treatment tank; the wetland pond is internally provided with a first partition wall, a second partition wall and a third partition wall from left to right, the wetland pond is sequentially divided into a water collecting well, a primary wetland pond, a secondary wetland pond and a disinfection pond, the upper part of the first partition wall, the lower part of the second partition wall and the upper part of the third partition wall are respectively provided with a water through hole, the primary wetland pond is sequentially filled with a third packing layer, a fourth packing layer, a first packing layer and a second packing layer from top to bottom, the secondary wetland pond is sequentially filled with an eighth packing layer, a seventh packing layer, a sixth packing layer and a fifth packing layer from bottom to top, an inlet of the disinfection pond is provided with an inclined water distribution guide plate, the top of the disinfection pond is provided with an ultraviolet lamp, and the upper part of the water.
Further, as a modification of the above aspect of the present invention, the second packing layer is a pebble layer with a thickness of 20 cm.
Further, as an improvement of the above scheme of the invention, the first packing layer is a ceramsite layer, and the thickness of the first packing layer is 30 cm.
Further, as an improvement of the scheme of the invention, the fourth filler layer is formed by mixing coarse sand and slag according to a volume ratio of 9:1, and the thickness of the fourth filler layer is 30 cm.
Further, as an improvement of the above scheme of the invention, the third packing layer is formed by mixing fine sand, vermiculite and clay dark loline soil according to a volume ratio of 3:1:6, and the thickness is 20 cm.
Further, as an improvement of the scheme of the invention, the fifth filler layer is formed by mixing river mud and fine sand according to a volume ratio of 7:3, and the thickness of the fifth filler layer is 20 cm.
Further, as an improvement of the scheme of the invention, the sixth filler layer is formed by mixing fly ash, zeolite and coarse sand according to a volume ratio of 4:1:5, and the thickness of the sixth filler layer is 25 cm.
Further, as an improvement of the scheme of the invention, the seventh packing layer is formed by mixing slag and ceramsite according to a volume ratio of 4:1, and the thickness of the seventh packing layer is 25 cm.
Further, as a modification of the above aspect of the present invention, the eighth filler layer is a gravel layer and has a thickness of 30 cm.
Further, as an improvement of the above scheme of the invention, a stirring mechanism is further arranged in the anaerobic treatment chamber, the stirring mechanism comprises a vertically arranged stirring shaft and a plurality of stirring blades uniformly arranged on the stirring shaft, and the upper end of the stirring shaft is coaxially connected with a motor arranged outside the anaerobic treatment chamber.
Further, as an improvement of the above scheme of the invention, a rectangular activated carbon filter screen is further arranged in the anaerobic treatment chamber, and the activated carbon filter screen is positioned at a sewage discharge outlet of the anaerobic treatment chamber.
Further, as an improvement of the scheme of the invention, the livestock breeding sewage treatment device further comprises a sludge pump, the bottom parts of the biological treatment tank, the artificial sedimentation deodorization chamber and the anaerobic treatment chamber are respectively connected with the sludge pump through pipelines, and the sludge pump sends the sludge in the biological treatment tank and the anaerobic treatment chamber into the artificial sedimentation deodorization chamber.
Further, as an improvement of the above scheme of the present invention, the biological treatment tank is further provided with an overflow tank, and the overflow tank is arranged at a drain outlet for discharging sewage in the biological treatment tank.
Further, as an improvement of the above scheme of the invention, the sewage flowing out of the biological treatment tank flows into the water collecting well through the output pipe, and the lower end of the output pipe extends to the lower part in the water collecting well.
The invention also provides a method for treating the livestock breeding sewage, which comprises the following steps:
construction sewage treatment system
In the rear area of the farm, firstly, an underground pretreatment tank is buried, then a biological treatment tank is arranged on the ground, then a secondary wetland pool and a plurality of fish ponds are built in the peripheral area of the farm, and the pretreatment tank, the biological treatment tank, the wetland pool and the fish ponds are sequentially communicated through water pipelines; the pretreatment tank is divided into an autonomous settling chamber, an artificial settling deodorization chamber and an anaerobic treatment chamber, anaerobic active biological fillers are added into the anaerobic treatment chamber, and active biological fillers are added into the biological treatment tank in advance and provided with an aeration mechanism; the wetland pool is subjected to seepage prevention treatment in advance, the wetland pool is divided into a water collecting well, a primary wetland pool, a secondary wetland pool and a disinfection pool, the primary wetland pool is sequentially filled with a third packing layer, a fourth packing layer, a first packing layer and a second packing layer from top to bottom, the secondary wetland pool is sequentially filled with an eighth packing layer, a seventh packing layer, a sixth packing layer and a fifth packing layer from bottom to top, an inclined water distribution guide plate is arranged at the inlet of the disinfection pool, and an ultraviolet lamp is positioned above the water distribution guide plate;
underground pretreatment
Collecting slag-containing aquaculture sewage and rainwater discharged from a farm, completely sending the aquaculture sewage and the rainwater into a pretreatment tank through a sewage collecting pipe, performing autonomous sedimentation on the sewage in an autonomous sedimentation chamber, then flowing into an artificial sedimentation deodorization chamber, performing artificial sedimentation by spraying a flocculant solution, then spraying a deodorization solution for deodorization treatment, and then flowing into an anaerobic treatment chamber for anaerobic treatment;
aboveground biological treatment of the ground
After the anaerobic treatment, the wastewater is filtered, then is lifted and sent into a biological treatment tank for aerobic treatment, and aeration treatment is carried out during the aerobic treatment;
ecological treatment
The culture sewage treated by the biological treatment tank is sent into a water collecting well of a wetland pool, then flows into a primary wetland pool, is subjected to primary ecological treatment from top to bottom, zizania latifolia is planted in the primary wetland pool, then permeates into a secondary wetland pool through a second packing layer, is subjected to secondary ecological treatment from bottom to top, and is planted with typha orientalis L, and then flows into a disinfection pool for disinfection;
recycling
The clean water disinfected in the disinfection tank flows into a fish pond for aquaculture, and when the clean water in the disinfection tank is excessive, the clean water is sent into a water storage barrel or a water cellar for storage through a pipeline and is used for livestock drinking in a farm or washing and cleaning a breeding place; mixing sludge generated in the underground pretreatment tank and the biological treatment tank and livestock manure separated from a farm, fermenting, spreading an appropriate amount of obtained fermentation materials in a wetland pool, harvesting zizania latifolia planted in the wetland pool at proper time to prepare a silage for livestock breeding, and harvesting typha at proper time to prepare a Chinese herbal medicine.
In summary, due to the adoption of the technical scheme, the beneficial technical effects of the invention are as follows: the cultivation sewage is preliminarily treated by underground closed pretreatment, so that the surrounding soil environment and air environment are prevented from being influenced, and the space utilization rate is improved; the treatment rate of sewage is accelerated through aboveground biological treatment, the contents of COD, TNH3-N and the like are reduced, and the treatment of the culture sewage is further deepened; performing ecological purification treatment by using a multi-stage composite wetland pool, and inputting the treated water into a fishpond for aquaculture to form a water recycling mode; a plurality of auxiliary industrial chains are formed while the livestock breeding sewage is treated, a circular sustainable agriculture mode integrating livestock aquaculture and planting is formed, and the problem of livestock breeding sewage treatment is solved.
Drawings
FIG. 1 is a schematic structural view of a livestock breeding sewage treatment plant according to an embodiment of the present invention;
reference numerals: 1-a sewage collecting pipe, 2-an underground pretreatment tank, 3-a sewage cleaning port, 4-a first clapboard, 5-a flocculation spray pipe, 6-a liquid medicine box, 7-a second clapboard, 8-a deodorization spray pipe, 9-a third clapboard, 10-a motor, 11-a stirring shaft, 12-an active carbon filter screen, 13-anaerobic active biological filler, 14-a sludge pump, 15-a lift pump, 16-an aeration pipe, 17-aerobic active biological filler, 18-a biological treatment tank, 19-an overflow tank, 20-an aeration fan, 21-an output pipe, 22-a wetland pool, 23-a first partition wall, 24-a first filler layer, 25-a second filler layer, 26-a second partition wall, 27-a third filler layer and 28-a fourth filler layer, 29-a fifth packing layer, 30-a sixth packing layer, 31-a seventh packing layer, 32-an eighth packing layer, 33-a third partition wall, 34-a water distribution guide plate, 35-an ultraviolet lamp and 36-a clean water pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further 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.
Example 1
Referring to the attached drawing 1, the present embodiment provides a poultry and livestock breeding sewage treatment device, which comprises an underground pretreatment tank, a biological treatment tank, and a wetland tank, which are connected in sequence through a pipeline, wherein the underground pretreatment tank is provided with a first partition plate and a third partition plate from left to right, an inner cavity of the underground pretreatment tank is sequentially divided into an autonomous settling chamber, an artificial settling deodorizing chamber, and an anaerobic treatment chamber, the first partition plate and the third partition plate are provided with water through holes, a liquid medicine tank is arranged outside the top of the underground pretreatment tank, a second partition plate is arranged in the liquid medicine tank, the second partition plate divides the inner cavity of the liquid medicine tank into a flocculating solution storage chamber and a deodorizing solution storage chamber, the artificial settling deodorizing chamber is internally provided with a flocculating spray pipe and a deodorizing spray pipe, the deodorizing spray pipe is respectively communicated with the flocculating solution storage chamber and the deodorizing solution storage chamber through pipelines, the top walls of the autonomous settling chamber and the artificial settling deodorizing chamber are provided with sewage cleaning ports, anaerobic active biological filler is added in the anaerobic treatment chamber, a lifting pump is arranged on a pipeline between the pretreatment tank and the biological treatment tank, an aerobic active biological filler layer and an aeration pipe are arranged in the biological treatment tank, and the aeration pipe is connected with an aeration fan arranged outside the biological treatment tank; the anaerobic treatment chamber is internally provided with a stirring mechanism, the stirring mechanism comprises a stirring shaft which is vertically arranged and a plurality of stirring blades which are uniformly arranged on the stirring shaft, and the upper end of the stirring shaft is coaxially connected with a motor which is arranged outside the anaerobic treatment chamber; the wetland pond is internally provided with a first partition wall, a second partition wall and a third partition wall from left to right, the wetland pond is sequentially divided into a water collecting well, a primary wetland pond, a secondary wetland pond and a disinfection pond, the upper part of the first partition wall, the lower part of the second partition wall and the upper part of the third partition wall are respectively provided with a water through hole, the primary wetland pond is sequentially filled with a third packing layer, a fourth packing layer, a first packing layer and a second packing layer from top to bottom, the secondary wetland pond is sequentially filled with an eighth packing layer, a seventh packing layer, a sixth packing layer and a fifth packing layer from bottom to top, an inclined water distribution guide plate is arranged at the inlet of the disinfection pond, and an ultraviolet lamp is arranged above the water distribution guide plate.
In the embodiment, the livestock breeding sewage treatment device further comprises a sludge pump, the bottom parts of the biological treatment tank, the artificial sedimentation deodorization chamber and the anaerobic treatment chamber are respectively connected with the sludge pump through pipelines, and the sludge pump sends sludge in the biological treatment tank and the anaerobic treatment chamber into the artificial sedimentation deodorization chamber; the biological treatment tank is also provided with an overflow trough which is arranged at a water outlet for discharging sewage in the biological treatment tank; the sewage flowing out of the biological treatment tank flows into the water collecting well through the output pipe, and the lower end of the output pipe extends to the lower part in the water collecting well; the anaerobic treatment chamber is also internally provided with a rectangular active carbon filter screen which is positioned at a water outlet for discharging sewage in the anaerobic treatment chamber.
In this embodiment, the second packing layer is a pebble layer, and the thickness of the second packing layer is 20 cm; the first packing layer is a ceramsite layer, and the thickness of the first packing layer is 30 cm; the fourth packing layer is formed by mixing coarse sand and slag according to the volume ratio of 9:1, and the thickness of the fourth packing layer is 30 cm; the third packing layer is formed by mixing fine sand, vermiculite and caking loessial soil according to the volume ratio of 3:1:6, and the thickness of the third packing layer is 20 cm; the fifth packing layer is formed by mixing river mud and fine sand according to the volume ratio of 7:3, and the thickness of the fifth packing layer is 20 cm; the sixth packing layer is formed by mixing fly ash, zeolite and coarse sand according to the volume ratio of 4:1:5, and the thickness of the sixth packing layer is 25 cm; the seventh packing layer is formed by mixing slag and ceramsite according to the volume ratio of 4:1, and the thickness of the seventh packing layer is 25 cm; the eighth filler layer is a gravel layer with the thickness of 30cm,
in the embodiment, the precipitated solid waste in the autonomous settling chamber and the manual settling deodorization chamber is periodically cleaned through a cleaning port, and the side wall or the top of the anaerobic treatment chamber can be provided with a maintenance port for adding or replacing anaerobic active biological filler and an active carbon filter screen; the aerobic active biological filler is positioned above the aeration pipe, and the aeration pipe is horizontally arranged; the first partition plate is provided with a plurality of equal-height water through holes, the height of each equal-height water through hole is higher than that of the third partition plate, and the height of the water outlet of the anaerobic treatment chamber is lower than that of the water through holes formed in the third partition plate; the water through holes at the lower part of the second partition wall are arranged at the middle position of the second packing layer. The setting direction of the ultraviolet lamp is parallel to the setting direction of the water distribution guide plate.
The underground pretreatment tank can be made into a cylinder or a rectangle by adopting a glass fiber reinforced plastic material or a stainless steel material internally coated with an anticorrosive coating, the biological treatment tank can be made into a cylinder or a rectangle by adopting a transparent acrylic material, and when the sewage treatment capacity is large, a plurality of biological treatment tanks can be connected in parallel or in series.
The valves are reasonably arranged on the pipelines connected with the devices in the device, the valves select manual valves or electric valves according to actual conditions, and the top of the water collecting well is provided with a grating or cover plate door with a lock.
Example 2
On the basis of embodiment 1, the present embodiment provides a method for treating livestock breeding sewage, which comprises the following steps:
construction sewage treatment system
In the rear area of the farm, firstly, an underground pretreatment tank is buried, then a biological treatment tank is arranged on the ground, then a secondary wetland pool and a plurality of fish ponds are built in the peripheral area of the farm, and the pretreatment tank, the biological treatment tank, the wetland pool and the fish ponds are sequentially communicated through water pipelines; the pretreatment tank is divided into an autonomous settling chamber, an artificial settling deodorization chamber and an anaerobic treatment chamber, anaerobic active biological fillers are added into the anaerobic treatment chamber, and active biological fillers are added into the biological treatment tank in advance and provided with an aeration mechanism; the wetland pool is subjected to seepage prevention treatment in advance, the wetland pool is divided into a water collecting well, a primary wetland pool, a secondary wetland pool and a disinfection pool, the primary wetland pool is sequentially filled with a third packing layer, a fourth packing layer, a first packing layer and a second packing layer from top to bottom, the secondary wetland pool is sequentially filled with an eighth packing layer, a seventh packing layer, a sixth packing layer and a fifth packing layer from bottom to top, an inclined water distribution guide plate is arranged at the inlet of the disinfection pool, and an ultraviolet lamp is arranged above the water distribution guide plate;
underground pretreatment
Collecting slag-containing aquaculture sewage and rainwater discharged from a farm, completely sending the aquaculture sewage and the rainwater into a pretreatment tank through a sewage collecting pipe, performing autonomous sedimentation on the sewage in an autonomous sedimentation chamber, then flowing into an artificial sedimentation deodorization chamber, performing artificial sedimentation by spraying a flocculant solution, then spraying a deodorization solution for deodorization treatment, and then flowing into an anaerobic treatment chamber for anaerobic treatment;
aboveground biological treatment of the ground
After the anaerobic treatment, the wastewater is filtered, then is lifted and sent into a biological treatment tank for aerobic treatment, and aeration treatment is carried out during the aerobic treatment;
ecological treatment
The culture sewage treated by the biological treatment tank is sent into a water collecting well of a wetland pool, then flows into a primary wetland pool, is subjected to primary ecological treatment from top to bottom, zizania latifolia is planted in the primary wetland pool, then permeates into a secondary wetland pool through a second packing layer, is subjected to secondary ecological treatment from bottom to top, and is planted with typha orientalis L, and then flows into a disinfection pool for disinfection;
recycling
The clean water disinfected in the disinfection tank flows into a fish pond for aquaculture, and when the clean water in the disinfection tank is excessive, the clean water is sent into a water storage barrel or a water cellar for storage through a pipeline and is used for livestock drinking in a farm or washing and cleaning a breeding place; mixing sludge generated in the underground pretreatment tank and the biological treatment tank and livestock manure separated from a farm, fermenting, spreading an appropriate amount of obtained fermentation materials in a wetland pool, harvesting zizania latifolia planted in the wetland pool at proper time to prepare a silage for livestock breeding, and harvesting typha at proper time to prepare a Chinese herbal medicine.
The method has the advantages of low equipment investment cost, easy operation of subsequent operation management operation and low cost, and can recycle the treated sewage to construct modern agriculture integrating livestock and poultry aquaculture and planting.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. The utility model provides a birds poultry raising sewage treatment device which characterized in that: the device comprises an underground pretreatment tank, a biological treatment tank and a wetland pool which are sequentially connected through pipelines, wherein a first clapboard and a third clapboard are arranged in the underground pretreatment tank from left to right, an inner cavity of the underground pretreatment tank is sequentially divided into an autonomous settling chamber, an artificial settling deodorization chamber and an anaerobic treatment chamber, water through holes are formed in the first clapboard and the third clapboard, a liquid medicine box is arranged outside the top of the underground pretreatment tank, a second clapboard is arranged in the liquid medicine box, the inner cavity of the liquid medicine box is divided into a flocculating solution storage chamber and a deodorizing solution storage chamber by the second clapboard, a flocculating spray pipe and a deodorizing spray pipe are arranged in the artificial settling deodorization chamber, the flocculating spray pipe and the deodorizing spray pipe are respectively communicated with the flocculating solution storage chamber and the deodorizing solution storage chamber through pipelines, the autonomous settling chamber and the artificial settling deodorization chamber are respectively provided with a sewage cleaning port, anaerobic active biological filler is arranged in the anaerobic treatment chamber, a lifting pump is arranged on the pipeline between the pretreatment tank and the biological treatment tank, an aerobic active biological packing layer and an aeration pipe are arranged in the biological treatment tank, and the aeration pipe is connected with an aeration fan arranged outside the biological treatment tank; the wetland pond is internally provided with a first partition wall, a second partition wall and a third partition wall from left to right, the wetland pond is sequentially divided into a water collecting well, a primary wetland pond, a secondary wetland pond and a disinfection pond, the upper part of the first partition wall, the lower part of the second partition wall and the upper part of the third partition wall are respectively provided with a water through hole, the primary wetland pond is sequentially filled with a third packing layer, a fourth packing layer, a first packing layer and a second packing layer from top to bottom, the secondary wetland pond is sequentially filled with an eighth packing layer, a seventh packing layer, a sixth packing layer and a fifth packing layer from bottom to top, an inlet of the disinfection pond is provided with an inclined water distribution guide plate, the top of the disinfection pond is provided with an ultraviolet lamp, and the upper part of the water.
2. The livestock breeding sewage treatment device according to claim 1, wherein: the second packing layer is a pebble layer with the thickness of 20 cm; the first packing layer is a ceramsite layer, and the thickness of the first packing layer is 30 cm; the fourth packing layer is formed by mixing coarse sand and slag according to the volume ratio of 9:1, and the thickness of the fourth packing layer is 30 cm; the third packing layer is formed by mixing fine sand, vermiculite and caking loessial soil according to the volume ratio of 3:1:6, and the thickness of the third packing layer is 20 cm; the fifth packing layer is formed by mixing river mud and fine sand according to the volume ratio of 7:3, and the thickness of the fifth packing layer is 20 cm; the sixth packing layer is formed by mixing fly ash, zeolite and coarse sand according to the volume ratio of 4:1:5, and the thickness of the sixth packing layer is 25 cm; the seventh packing layer is formed by mixing slag and ceramsite according to the volume ratio of 4:1, and the thickness of the seventh packing layer is 25 cm; the eighth filler layer is a gravel layer and has the thickness of 30 cm.
3. The livestock breeding sewage treatment device according to claim 2, wherein: the anaerobic treatment chamber is also internally provided with a stirring mechanism, the stirring mechanism comprises a vertically arranged stirring shaft and a plurality of stirring blades uniformly arranged on the stirring shaft, and the upper end of the stirring shaft is coaxially connected with a motor arranged outside the anaerobic treatment chamber.
4. The livestock breeding sewage treatment device according to claim 3, wherein: the anaerobic treatment chamber is also internally provided with a rectangular active carbon filter screen which is positioned at a water outlet for discharging sewage in the anaerobic treatment chamber.
5. The livestock breeding sewage treatment device according to claim 4, wherein: the livestock breeding sewage treatment device further comprises a sludge pump, the bottoms of the biological treatment tank, the artificial sedimentation deodorization chamber and the anaerobic treatment chamber are respectively connected with the sludge pump through pipelines, and the sludge pump sends sludge in the biological treatment tank and the anaerobic treatment chamber into the artificial sedimentation deodorization chamber.
6. The livestock breeding sewage treatment device according to claim 5, wherein: the biological treatment tank is also provided with an overflow trough which is arranged at a water outlet for discharging sewage in the biological treatment tank.
7. The livestock breeding sewage treatment device of claim 6, wherein: the sewage that the biological treatment jar flows out flows into the sump through the output tube, and the output tube lower extreme extends to the lower part in the sump.
8. A livestock breeding sewage treatment method, wherein the livestock breeding sewage treatment apparatus of claim 7 is used for livestock breeding sewage treatment, comprising the steps of:
construction sewage treatment system
In the rear area of the farm, firstly, an underground pretreatment tank is buried, then a biological treatment tank is arranged on the ground, then a secondary wetland pool and a plurality of fish ponds are built in the peripheral area of the farm, and the pretreatment tank, the biological treatment tank, the wetland pool and the fish ponds are sequentially communicated through water pipelines; the pretreatment tank is divided into an autonomous settling chamber, an artificial settling deodorization chamber and an anaerobic treatment chamber, anaerobic active biological fillers are added into the anaerobic treatment chamber, and active biological fillers are added into the biological treatment tank in advance and provided with an aeration mechanism; the wetland pool is subjected to seepage prevention treatment in advance, the wetland pool is divided into a water collecting well, a primary wetland pool, a secondary wetland pool and a disinfection pool, the primary wetland pool is sequentially filled with a third packing layer, a fourth packing layer, a first packing layer and a second packing layer from top to bottom, the secondary wetland pool is sequentially filled with an eighth packing layer, a seventh packing layer, a sixth packing layer and a fifth packing layer from bottom to top, an inclined water distribution guide plate is arranged at the inlet of the disinfection pool, and an ultraviolet lamp is positioned above the water distribution guide plate;
underground pretreatment
Collecting slag-containing aquaculture sewage and rainwater discharged from a farm, completely sending the aquaculture sewage and the rainwater into a pretreatment tank through a sewage collecting pipe, performing autonomous sedimentation on the sewage in an autonomous sedimentation chamber, then flowing into an artificial sedimentation deodorization chamber, performing artificial sedimentation by spraying a flocculant solution, then spraying a deodorization solution for deodorization treatment, and then flowing into an anaerobic treatment chamber for anaerobic treatment;
aboveground biological treatment of the ground
After the anaerobic treatment, the wastewater is filtered, then is lifted and sent into a biological treatment tank for aerobic treatment, and aeration treatment is carried out during the aerobic treatment;
ecological treatment
The culture sewage treated by the biological treatment tank is sent into a water collecting well of a wetland pool, then flows into a primary wetland pool, is subjected to primary ecological treatment from top to bottom, zizania latifolia is planted in the primary wetland pool, then permeates into a secondary wetland pool through a second packing layer, is subjected to secondary ecological treatment from bottom to top, and is planted with typha orientalis L, and then flows into a disinfection pool for disinfection;
recycling
The clean water disinfected in the disinfection tank flows into a fish pond for aquaculture, and when the clean water in the disinfection tank is excessive, the clean water is sent into a water storage barrel or a water cellar for storage through a pipeline and is used for livestock drinking in a farm or washing and cleaning a breeding place; mixing sludge generated in the underground pretreatment tank and the biological treatment tank and livestock manure separated from a farm, fermenting, spreading an appropriate amount of obtained fermentation materials in a wetland pool, harvesting zizania latifolia planted in the wetland pool at proper time to prepare a silage for livestock breeding, and harvesting typha at proper time to prepare a Chinese herbal medicine.
CN202110026446.1A 2021-01-08 2021-01-08 Livestock breeding sewage treatment device and method Withdrawn CN112811733A (en)

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Application publication date: 20210518