Rural livestock breeding wastewater treatment system and usage method

Abstract

The present application relates to a rural livestock breeding wastewater treatment system, comprising a septic tank, a black water treatment tank, a reclaimed water storage unit, and an artificial wetland. The black water drainage pipeline of the breeding base is connected to the water inlet pipeline of the septic tank, the water outlet pipeline of the septic tank is connected to the water inlet pipeline of the black water treatment tank, the water outlet pipeline of the black water treatment tank is connected to the water inlet pipeline of the reclaimed water storage unit, the water outlet pipeline of the reclaimed water storage unit is connected to the water inlet pipeline of the artificial wetland, and the water outlet pipeline of the reclaimed water storage unit is connected to the reclaimed water use pipeline of the breeding base. The above solution can solve the problem of low wastewater treatment efficiency of the livestock breeding wastewater discharge treatment device in the related art and the failure to recycle the wastewater.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and in particular relates to a rural livestock breeding sewage treatment system and a use method thereof. Background Art

[0002] Animal husbandry refers to the production process of livestock, poultry and other animals that have been artificially raised and domesticated by humans, and through artificial breeding and reproduction, they convert plant energy such as forage and feed into animal energy to obtain livestock products such as meat, eggs, milk and medicinal materials. When raising livestock in rural areas, the breeding grounds will not only produce a large amount of feces, urine, etc. from the livestock themselves, but also produce sewage when cleaning the breeding grounds. Livestock farms need to discharge sewage during their normal work. The sewage from livestock farms contains animal feces and other dirt. If it is discharged directly, it will cause great harm to the environment, so the sewage needs to be treated before it can be discharged.

[0003] In the related art, by adopting the livestock breeding wastewater discharge treatment device, the impurities therein need to be treated by a catalyst when in use, but when using the catalyst, it takes a long time to mix the sewage and the catalyst, and when the catalyst enters the device, it will fall to the bottom due to gravity, which will make the mixing of the sewage and the catalyst slower, and thus affect the efficiency of sewage treatment. Moreover, the water is directly discharged after treatment and is not utilized. It can be seen that the sewage treatment effect of the above-mentioned livestock breeding wastewater discharge treatment device is poor, and the sewage is not recycled. Summary of the Invention

[0004] Based on this, it is necessary to address the problem that the sewage treatment efficiency of the livestock breeding sewage discharge treatment device in the relevant technology is low and the sewage is not recycled.

[0005] A rural livestock breeding wastewater treatment system includes a septic tank, a black water treatment tank, a reclaimed water storage unit and an artificial wetland. The black water sewage discharge pipeline of the breeding base is connected to the water inlet pipeline of the septic tank, the water outlet pipeline of the septic tank is connected to the water inlet pipeline of the black water treatment tank, the water outlet pipeline of the black water treatment tank is connected to the water inlet pipeline of the reclaimed water storage unit, the water outlet pipeline of the reclaimed water storage unit is connected to the water inlet pipeline of the artificial wetland, and the water outlet pipeline of the reclaimed water storage unit is connected to the reclaimed water use pipeline of the breeding base.

[0006] Preferably, in the above-mentioned rural livestock breeding wastewater treatment system, the black water treatment pool is provided with an empty cavity and a treatment cavity in sequence along the gravity direction, and the permafrost layer and the treatment cavity are arranged in sequence along the gravity direction, and the treatment cavity is provided with an attachment layer, and anaerobic microorganisms are attached to the attachment layer.

[0007] Preferably, in the above-mentioned rural livestock breeding wastewater treatment system, the treatment chamber is divided into an anaerobic space and a filtration space, the vacant chamber is connected to the anaerobic space, the attachment layer is arranged in the anaerobic space, the anaerobic space is connected to the filtration space, the filtration space is provided with a filter material layer, and the filter material layer is attached with microorganisms.

[0008] Preferably, in the above-mentioned rural livestock breeding wastewater treatment system, the grey water collection part includes N levels of first water storage wells arranged in sequence, and the first water storage well includes at least one grey water storage tank; wherein, a grey water overflow pipe is provided on the upper part of the grey water storage tank of the i-1th level, and the grey water overflow pipe is connected to the grey water storage tank of the i-1th level; a return pipe is provided at the bottom of the grey water storage tank of the i-1th level, and the return pipe is connected to the grey water storage tank of the i-1th level; a check assembly is provided on the return pipe, which only allows fluid to flow from the grey water storage tank of the i-1th level to the grey water storage tank of the i-1th level, wherein N is an integer ≥2, i is an integer ≥2 and ≤N, and the grey water storage tank of the first level is provided with a grey water outlet pump, and the outlet end of the grey water outlet pump is connected to the water inlet pipeline of the artificial wetland and the grey water use pipeline of the breeding base.

[0009] Preferably, in the above rural livestock breeding wastewater treatment system, N=2, or N=3, or N=4.

[0010] Preferably, in the above-mentioned rural livestock breeding wastewater treatment system, the number of the first water storage wells at the i-th level is set to be at least one.

[0011] Preferably, in the above-mentioned rural livestock breeding wastewater treatment system, at least one multifunctional auxiliary pipe is provided in the middle of the grey water storage tank, the multifunctional auxiliary pipe connects the grey water storage tanks of two adjacent levels, and a cut-off component is provided on the multifunctional auxiliary pipe.

[0012] Preferably, in the above-mentioned rural animal husbandry wastewater treatment system, the rural animal husbandry wastewater treatment system further includes a clean water storage tank, and the outlet pipe of the artificial wetland is connected to the inlet pipe of the clean water storage tank.

[0013] Preferably, in the above-mentioned rural livestock breeding wastewater treatment system, the outlet pipe of the clean water storage tank is connected to the clean water use pipe of the breeding base.

[0014] Based on the above rural livestock breeding wastewater treatment system, a method for using the rural livestock breeding wastewater treatment system is also disclosed. The rural livestock breeding wastewater treatment system involved is the rural livestock breeding wastewater treatment system described in the above embodiment, and the method for using the system includes:

[0015] Step 101: treating the black water transported by the black water drainage pipeline of the breeding base in the black water treatment pool to obtain reclaimed water, and storing the reclaimed water in the reclaimed water storage unit;

[0016] Step 102: Obtaining the growth status of the crops planted in the artificial wetland;

[0017] Step 103: When the growth state is the metabolic stage, the reclaimed water storage unit drives the reclaimed water to flow to the artificial wetland and the reclaimed water use pipeline of the aquaculture base. The artificial wetland processes the reclaimed water to obtain clean water, which is stored in a clean water storage tank. The clean water storage tank drives the clean water to flow to the clean water use pipeline of the aquaculture base.

[0018] Step 104: When the growth state is a non-metabolism period, the reclaimed water storage unit drives the reclaimed water to flow to the reclaimed water use pipeline of the breeding base.

[0019] The technical solution adopted in this application can achieve the following beneficial effects:

[0020] In a rural livestock breeding wastewater treatment system disclosed in an embodiment of the present application, the black water sewage discharge pipeline of the breeding base is connected to the water inlet pipeline of the septic tank, the water outlet pipeline of the septic tank is connected to the water inlet pipeline of the black water treatment tank, the water outlet pipeline of the black water treatment tank is connected to the water inlet pipeline of the reclaimed water storage unit, the water outlet pipeline of the reclaimed water storage unit is connected to the water inlet pipeline of the artificial wetland, and the water outlet pipeline of the reclaimed water storage unit is connected to the reclaimed water use pipeline of the breeding base. In the above structure, the storage of the reclaimed water obtained from the black water treatment tank is achieved through the reclaimed water storage part. At the same time, the breeding base can flexibly control the use of reclaimed water according to the status of plants in the artificial wetland. When the crops in the artificial wetland are in a metabolically active state, the reclaimed water storage part can drive the reclaimed water to flow to the artificial wetland, and the artificial wetland can process the reclaimed water; when the crops in the artificial wetland are in a non-metabolic state, since the reclaimed water use pipeline of the breeding base is connected to the outlet pipeline of the reclaimed water storage part, the reclaimed water storage part can drive the reclaimed water to flow to the reclaimed water use pipeline of the breeding base, and the breeding base can use the reclaimed water to flush livestock pens, bathe livestock, etc., thereby ensuring the treatment effect of sewage and realizing the recycling of sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the rural livestock breeding wastewater treatment system disclosed in the embodiment of this application;

[0022] Figure 2 A cross-sectional view of the first water storage well disclosed in an embodiment of the present application;

[0023] Figure 3 for Figure 2 A partial enlarged view of section A shown;

[0024] Figure 4 A cross-sectional view of a black water treatment tank disclosed in an embodiment of the present application;

[0025] Figure 5 This is a schematic diagram of the cutoff component structure disclosed in an embodiment of the present application.

[0026] Among them: septic tank 100, main storage tank 210-1, auxiliary storage tank 210-2, tertiary storage tank 210-3, grey water outlet pump 211, grey water overflow pipe 212, return pipe 213, non-return assembly 214, receiving part 2141, non-return gate 2142, auxiliary float 2143, multi-functional auxiliary pipe 215, cut-off assembly 216, cut-off part 2161, black water treatment tank 300, vacant cavity 310, treatment cavity 320, anaerobic space 321, filtration space 322, filter material layer 323, attachment layer 330, artificial wetland 400, permafrost layer 500, clean water storage tank 600. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0028] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be an element centered thereon. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an element centered thereon. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "bottom end," "top end," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Please refer to Figures 1 to 5 The present application discloses a rural livestock breeding wastewater treatment system, which includes a septic tank 100, a black water treatment tank 300, a reclaimed water storage part and an artificial wetland 400.

[0031] The septic tank 100 is used to treat the black water output by farmers and filter and precipitate it. The black water treatment tank 300 is used to treat the black water transported from the septic tank 100 to obtain reclaimed water. The black water treatment tank 300 can treat the black water by combining anaerobic and aerobic organisms to obtain reclaimed water, or it can also treat the black water by MBBR sewage treatment technology to obtain reclaimed water. This application does not impose any restrictions on this. The reclaimed water storage unit is a storage functional component of the rural livestock breeding sewage treatment system. The artificial wetland 400 can treat the reclaimed water transported from the gray water treatment tank and the black water treatment tank 300 to obtain clean water.

[0032] Specifically, the black water sewage pipeline of the breeding base is connected to the inlet pipeline of the septic tank 100, the outlet pipeline of the septic tank 100 is connected to the inlet pipeline of the black water treatment tank 300, the outlet pipeline of the black water treatment tank 300 is connected to the inlet pipeline of the reclaimed water storage part, the outlet pipeline of the reclaimed water storage part is connected to the inlet pipeline of the artificial wetland 400, and the outlet pipeline of the reclaimed water storage part is connected to the reclaimed water use pipeline of the breeding base.

[0033] During the use of the rural livestock breeding wastewater treatment system, the breeding base transports the black water to the septic tank 100 through its black water sewage pipeline. The septic tank 100 treats the black water output by farmers and filters and precipitates it. The black water treatment tank 300 treats the black water to obtain grey water. The black water treatment tank 300 transports the grey water to the grey water storage part. When the crops in the artificial wetland 400 are in a state of vigorous metabolism, the grey water storage part can drive the grey water to flow to the artificial wetland 400, and the artificial wetland 400 can treat the grey water; when the crops in the artificial wetland 400 are in a state of non-vigorous metabolism, since the grey water use pipeline of the breeding base is connected to the outlet pipeline of the grey water storage part, the grey water storage part can drive the grey water to flow to the grey water use pipeline of the breeding base.

[0034] In a rural livestock breeding wastewater treatment system disclosed in an embodiment of the present application, the black water sewage discharge pipeline of the breeding base is connected to the inlet pipeline of the septic tank 100, the outlet pipeline of the septic tank 100 is connected to the inlet pipeline of the black water treatment tank 300, the outlet pipeline of the black water treatment tank 300 is connected to the inlet pipeline of the reclaimed water storage part, the outlet pipeline of the reclaimed water storage part is connected to the inlet pipeline of the artificial wetland 400, and the outlet pipeline of the reclaimed water storage part is connected to the reclaimed water use pipeline of the breeding base. In the above structure, the storage of the reclaimed water obtained by the black water treatment tank 300 is achieved through the reclaimed water storage part. At the same time, the breeding base can flexibly control the use of reclaimed water according to the status of the plants in the artificial wetland 400. When the crops in the artificial wetland 400 are in a metabolically active state, the reclaimed water storage part can drive the reclaimed water to flow to the artificial wetland 400, and the artificial wetland 400 can treat the reclaimed water; when the crops in the artificial wetland 400 are in a non-metabolic state, since the reclaimed water use pipeline of the breeding base is connected to the outlet pipeline of the reclaimed water storage part, the reclaimed water storage part can drive the reclaimed water to flow to the reclaimed water use pipeline of the breeding base, and the breeding base can use the reclaimed water to flush livestock pens, bathe livestock, etc., thereby ensuring the treatment effect of sewage and realizing the recycling of sewage.

[0035] In an embodiment of the present application, the black water treatment pool 300 can be provided with an empty cavity 310 and a treatment cavity 320 in sequence along the direction of gravity. Specifically, along the direction of gravity, the permafrost layer 500 and the treatment cavity 320 can be arranged in sequence, and the treatment cavity 320 can be provided with an attachment layer 330, and anaerobic microorganisms can be attached to the attachment layer 330, wherein the anaerobic microorganisms can decompose organic matter in the black water.

[0036] In the above structure, in order to prevent the activity of anaerobic microorganisms from being affected by temperature due to the low surface ambient temperature, the frozen soil layer 500 and the processing chamber 320 are arranged in sequence along the gravity direction, which is conducive to ensuring the activity of anaerobic microorganisms.

[0037] In a further technical solution, the processing chamber 320 can be divided into an anaerobic space 321 and a filtration space 322. Specifically, the empty chamber 310 can be connected to the anaerobic space 321, the attachment layer 330 can be arranged in the anaerobic space 321, the anaerobic space 321 can be connected to the filtration space 322, the filtration space 322 can be provided with a filter layer 323, and the filter layer 323 can be attached with aerobic microorganisms. In the presence of oxygen, the aerobic microorganisms further degrade organic matter through biological metabolism.

[0038] In an embodiment of the present application, the grey water collection section may include N levels of first water storage wells arranged in sequence, specifically, the first water storage well includes at least one grey water storage tank; wherein, a grey water overflow pipe 212 is provided on the upper part of the i-1th level grey water storage tank, and the grey water overflow pipe 212 is connected to the i-1th level grey water storage tank; a return pipe 213 is provided at the bottom of the i-1th level grey water storage tank, and the return pipe 213 is connected to the i-1th level grey water storage tank; a check assembly 214 is provided on the return pipe 213, which only allows the fluid to flow from the i-th level grey water storage tank to the i-1th level grey water storage tank, wherein N is an integer ≥2, i is an integer ≥2 and ≤N, and the first-level grey water storage tank is provided with a grey water outlet pump 211, and the outlet end of the grey water outlet pump 211 is connected to the water inlet pipeline of the artificial wetland 400 and the grey water use pipeline of the farmers.

[0039] During the use of the rural livestock breeding wastewater treatment system, in summer or autumn, when the average temperature is high and plants are in a period of active metabolism, the ammonia nitrogen and phosphorus-containing reclaimed water obtained after centralized treatment of the breeding base wastewater is sent to the constructed wetland 400. Through physical, biological, and chemical processes, the ammonia nitrogen and phosphorus content in the reclaimed water is reduced before being discharged or recycled for reuse. In winter and spring, when the average temperature is low and plants are in a period of slow or no metabolism, the ammonia nitrogen and phosphorus-containing reclaimed water obtained after centralized treatment of the breeding base wastewater is sent to the reclaimed water storage tank for storage. After the temperature rises and plant metabolism resumes, the reclaimed water stored in the reclaimed water storage tank is sent to the constructed wetland 400 for treatment and discharge or recycling for reuse. By setting up a greywater storage pool, the greywater can be temporarily stored when the average temperature is low and plant metabolism is inactive. The greywater can be recycled back to the breeding base for use and then centrally treated when the temperature rises and plant metabolism is active. This effectively solves the problem of the artificial wetland 400 not being able to operate normally in northern China due to the influence of temperature and plant growth cycle, ensures the treatment effect of the greywater, and ensures that the wastewater from the breeding base is treated to meet the standards.

[0040] For example, the greywater storage tanks are divided into a main storage tank 210-1, at least one auxiliary storage tank 210-2, and at least one tertiary storage tank 210-3. The upper portions of the multiple auxiliary storage tanks 210-2 are connected to the main storage tank 210-1 via greywater overflow pipes 212, and the multiple tertiary storage tanks 210-3 are connected to the at least one auxiliary storage tank 210-2 via greywater overflow pipes 212. After rural sewage treatment, greywater is discharged into the main storage tank 210-1. Once the main storage tank 210-1 is full, the greywater is diverted to the auxiliary storage tank 210-2 via the greywater overflow pipes 212. Once the auxiliary storage tank 210-2 is full, the greywater is diverted to the tertiary storage tank 210-3 via the greywater overflow pipes 212.

[0041] Those skilled in the art will appreciate that, depending on specific circumstances, it may be possible to construct only the primary storage pool 210-1 and the auxiliary storage pool 210-2, without constructing the tertiary storage pool 210-3. Alternatively, a quaternary storage pool, a quintuple storage pool, and so on, may be constructed based on the tertiary storage pool 210-3. Multiple secondary and subsequent tiers of reclaimed water storage pools may be provided to form a reclaimed water storage network.

[0042] In the above-described embodiment, the reclaimed water is sequentially diverted from the nearest primary storage tank 210-1 to the auxiliary storage tank 210-2 and the tertiary storage tank 210-3. On the one hand, only one set of inlet pumps is required, or water intake is directly achieved by gravity, and the pumps do not require excessive lift, thus reducing the number of pumps and their operating time, thereby lowering construction and operating costs. On the other hand, throughout the entire reclaimed water storage process, the reclaimed water in each reclaimed water storage tank is in a state of flow or disturbance, enhancing its fluidity and preventing the long-term stagnant storage of reclaimed water, which could lead to stagnant water and secondary pollution.

[0043] During the storage of reclaimed water, because the reclaimed water level in the main storage tank 210-1 is always higher than that in the auxiliary storage tank 210-2, static pressure prevents the reclaimed water from flowing back into the main storage tank 210-1 through the return pipe 213. During drainage, water can be pumped only from the main storage tank 210-1. When the reclaimed water level in the main storage tank 210-1 drops below that in the auxiliary storage tank 210-2, static pressure causes the reclaimed water in the auxiliary storage tank 210-2 to flow back into the main storage tank 210-1 through the return pipe 213. Similarly, when the level of the reclaimed water storage tank in the previous level drops below that in the next level, the reclaimed water in the next level flows back into the previous level, until the water in the next level is completely drained. Preferably, the bottom of the subsequent grey water storage tank is higher than the bottom of the previous grey water storage tank, so that the grey water in the subsequent grey water storage tank can be completely drained.

[0044] In the above embodiment, by setting the return pipe 213 and the check assembly 214 at the bottom of the grey water storage tank, water can be discharged from one or a few grey water storage tanks, thereby reducing the investment in pump equipment and facilitating the unified treatment of grey water.

[0045] In a preferred embodiment, at least one multifunctional auxiliary pipe 215 is provided in the middle of the grey water storage tank, the multifunctional auxiliary pipe 215 is connected to at least one grey water storage tank close to the water storage well, and a cut-off component 216 is provided on the multifunctional auxiliary pipe 215.

[0046] That is, the upper-level greywater storage tank and the lower-level greywater storage tank are not only connected at the top and bottom, but also have at least one multifunctional auxiliary pipe 215 in the middle for connecting the upper-level greywater storage tank and the lower-level greywater storage tank. Under normal circumstances, the shut-off component 216 is closed, and water cannot flow through the multifunctional auxiliary pipe 215. In one case, to promote the flow of water between the greywater storage tanks at each level and prevent the water in the lower-level greywater storage tank from not flowing for a long time and forming stagnant water, causing secondary pollution, the shut-off component 216 is opened at an appropriate time to connect the two adjacent greywater storage tanks, allowing the water in the upper-level greywater storage tank to flow into the lower-level greywater storage tank, replenishing the lower-level greywater storage tank with fresh water. Alternatively, in another embodiment of the present invention, when the water pressure is insufficient to open the check assembly 214, the shut-off component 216 can be opened to divert water in advance to introduce the water from the lower-level greywater storage tank into the upper-level greywater storage tank. In another case, when water needs to be taken from the next-level grey water storage tank for use nearby, the cut-off component 216 can be opened so that the water in the previous-level grey water storage tank can be introduced into the next-level grey water storage tank in advance for use nearby.

[0047] In some embodiments, the check assembly 214 is a one-way valve. Figure 3 In one preferred embodiment, to facilitate infrastructure construction and reduce construction costs, the check valve assembly 214 includes a receiving member 2141 and a check valve 2142, which are arranged at the outlet end of the return pipe 213. The upper end of the check valve 2142 is hingedly connected to the receiving member 2141 or the wall of the water storage well, and the check valve 2142 can cover the receiving member 2141. When water is flowing in, the check valve 2142 is tightly attached to the receiving member 2141 under its own weight and water pressure, preventing water from entering the next-level gray water storage tank. In the water outlet state, when the liquid level of the upper-level greywater storage tank drops below the liquid level of the lower level, and the back pressure exerted by the water in the lower-level greywater storage tank on the non-return gate 2142 is greater than the sum of the pressure exerted by the water in the upper-level greywater storage tank and the gravity of the non-return gate 2142, the non-return gate 2142 is separated from the receiving part 2141, and the water in the lower-level greywater storage tank flows back to the upper-level greywater storage tank.

[0048] Preferably, to prevent the check gate 2142 from being unable to open smoothly, an auxiliary float 2143 is provided on the check gate 2142. The auxiliary float 2143 forces the check gate 2142 to move away from the receiving member 2141. Under the action of water buoyancy, the check gate 2142 is always subjected to a force moving away from the receiving member 2141. Therefore, when the liquid level of the upper-level gray water storage tank drops below that of the lower-level gray water storage tank, the back pressure does not need to overcome the weight of all the check gates 2142, and the check gate 2142 can be opened, effectively ensuring smooth water flow.

[0049] In one embodiment, the shutoff assembly 216 includes a shutoff gate mounted at the end of the multifunctional auxiliary pipe 215, which can be raised and lowered along the wellbore depth. A shutoff portion 2161 is provided on the shutoff gate, which can cover the end of the multifunctional auxiliary pipe 215. Under normal circumstances, the shutoff portion 2161 covers the end of the multifunctional auxiliary pipe 215. To open the multifunctional auxiliary pipe 215, the shutoff gate is pulled upward, separating the shutoff portion 2161 from the end of the multifunctional auxiliary pipe 215, thereby connecting the upper-level reclaimed water storage tank to the lower-level reclaimed water storage tank.

[0050] In an embodiment of the present application, the rural livestock breeding wastewater treatment system may further include a clean water storage tank 600. Specifically, the outlet pipe of the artificial wetland 400 may be connected to the water inlet pipe of the clean water storage tank 600, the outlet pipe of the clean water storage tank 600 may be connected to the clean water use pipe of the farmer, and the outlet pipe of the clean water storage tank 600 may be connected to the clean water use pipe of the breeding base. In some cases, such as in the summer in northern China, the treated sewage from the breeding base produces reclaimed water that is sent to the artificial wetland 400 for further treatment. After treatment, relatively clean clean water is obtained. This part of the clean water is collected in the clean water storage tank 600 for recycling. For example, since the outlet pipe of the clean water storage tank 600 is connected to the clean water use pipe of the breeding base, the clean water use pipe of the breeding base can be connected to the livestock drinking water pool and medicine pool, etc., thereby facilitating livestock drinking.

[0051] Furthermore, there can be multiple clean water storage tanks 600, with any one of the multiple clean water storage tanks 600 connected to at least one adjacent clean water storage tank 600. This means that at least two of the multiple clean water storage tanks 600 are connected, facilitating the diversion of clean water to areas with high water demand. Preferably, the clean water storage tanks 600 can be connected in a manner similar to that used for reclaimed water storage tanks to conserve space and reduce costs.

[0052] Based on the rural livestock breeding wastewater treatment system disclosed in the embodiment of the present application, the embodiment of the present application discloses a method for using the rural livestock breeding wastewater treatment system. The rural livestock breeding wastewater treatment system involved is the rural livestock breeding wastewater treatment system described in the embodiment above, and the method for using includes:

[0053] Step 101: black water from the black water drainage pipeline of the breeding base is processed in the black water treatment pool 300 to obtain reclaimed water, which is then stored in a reclaimed water storage unit.

[0054] Step 102: Obtain the growth status of crops planted in the artificial wetland 400;

[0055] Step 103: When the growth state is the metabolic stage, the reclaimed water storage unit drives the reclaimed water to flow to the artificial wetland 400 and the reclaimed water use pipeline of the breeding base. The artificial wetland 400 processes part of the reclaimed water to obtain clean water, which is stored in the clean water storage tank 600. The clean water storage tank 600 drives the clean water to flow to the clean water use pipeline of the breeding base.

[0056] Step 104: When the growth state is in the non-metabolism period, the reclaimed water storage unit drives the reclaimed water to flow to the reclaimed water use pipeline of the breeding base.

[0057] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A rural livestock breeding wastewater treatment system, characterized in that: The system comprises a septic tank, a black water treatment tank, a reclaimed water storage unit and an artificial wetland, wherein the black water sewage discharge pipeline of the breeding base is connected to the water inlet pipeline of the septic tank, the water outlet pipeline of the septic tank is connected to the water inlet pipeline of the black water treatment tank, the water outlet pipeline of the black water treatment tank is connected to the water inlet pipeline of the reclaimed water storage unit, the water outlet pipeline of the reclaimed water storage unit is connected to the water inlet pipeline of the artificial wetland, and the water outlet pipeline of the reclaimed water storage unit is connected to the reclaimed water use pipeline of the breeding base; The black water treatment tank is provided with an empty cavity and a treatment cavity in sequence along the gravity direction. A frozen soil layer and the treatment cavity are arranged in sequence along the gravity direction. The treatment cavity is provided with an attachment layer, and anaerobic microorganisms are attached to the attachment layer. The reclaimed water collection section includes N levels of first water storage wells arranged in sequence, each of which includes at least one reclaimed water storage tank; wherein a reclaimed water overflow pipe is provided on the upper portion of the reclaimed water storage tank of the i-th level, and the reclaimed water overflow pipe is connected to the reclaimed water storage tank of the i-th level; a return pipe is provided at the bottom of the reclaimed water storage tank of the i-th level, and the return pipe is connected to the reclaimed water storage tank of the i-th level; the return pipe is provided with a check assembly that only allows fluid to flow from the reclaimed water storage tank of the i-th level to the reclaimed water storage tank of the i-th level, wherein N is an integer ≥2, and i is an integer ≥2 and =N; a reclaimed water outlet pump is provided for the reclaimed water storage tank of the first level, and the outlet end of the reclaimed water outlet pump is connected to the water inlet pipeline of the artificial wetland and the reclaimed water use pipeline of the aquaculture base; The bottom of the latter-level greywater storage tank is higher than the bottom of the former-level greywater storage tank.

2. The rural livestock breeding wastewater treatment system according to claim 1, characterized in that: The treatment chamber is divided into an anaerobic space and a filtration space. The vacant chamber is communicated with the anaerobic space. The attachment layer is arranged in the anaerobic space. The anaerobic space is communicated with the filtration space. The filtration space is provided with a filter material layer, and microorganisms are attached to the filter material layer.

3. The rural livestock breeding wastewater treatment system according to claim 1, characterized in that: N=2, or N=3, or N=4.

4. The rural livestock breeding wastewater treatment system according to claim 1, characterized in that: At least one multifunctional auxiliary pipe is provided in the middle of the reclaimed water storage tank, and the multifunctional auxiliary pipe connects the reclaimed water storage tanks of two adjacent stages. A cut-off component is provided on the multifunctional auxiliary pipe.

5. The rural livestock breeding wastewater treatment system according to claim 1, characterized in that: The rural livestock breeding wastewater treatment system also includes a clean water storage tank, and the outlet pipe of the artificial wetland is connected to the inlet pipe of the clean water storage tank.

6. The rural livestock breeding wastewater treatment system according to claim 5, characterized in that: The water outlet pipeline of the clean water storage tank is connected to the clean water use pipeline of the breeding base.

7. A method for using a rural livestock breeding wastewater treatment system, using the rural livestock breeding wastewater treatment system according to any one of claims 1 to 6, characterized in that: The method of use includes: The black water transported by the black water sewage pipeline of the breeding base is treated in the black water treatment pool to obtain reclaimed water, and the reclaimed water is stored in the reclaimed water storage part; Obtaining the growth status of crops planted in the artificial wetland; When the growth state is the metabolic stage, the reclaimed water storage unit drives the reclaimed water to flow to the artificial wetland and the reclaimed water use pipeline of the breeding base, the artificial wetland processes the reclaimed water to obtain clean water, the clean water is stored in the clean water storage tank, and the clean water storage tank drives the clean water to flow to the clean water use pipeline of the breeding base; When the growth state is a non-metabolism period, the reclaimed water storage unit drives the reclaimed water to flow to the reclaimed water use pipeline of the breeding base.

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