CN214192943U - Wastewater treatment system for dairy farm breeding - Google Patents
Wastewater treatment system for dairy farm breeding Download PDFInfo
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- CN214192943U CN214192943U CN202023106994.5U CN202023106994U CN214192943U CN 214192943 U CN214192943 U CN 214192943U CN 202023106994 U CN202023106994 U CN 202023106994U CN 214192943 U CN214192943 U CN 214192943U
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Abstract
The utility model discloses a wastewater treatment system for dairy farm culture, which comprises a spiral shell stacking machine, an air flotation machine, an anaerobic tank, a primary sedimentation tank, a contact oxidation tank, a secondary sedimentation tank and a disinfection system, wherein the water outlet of the spiral shell stacking machine is connected with the water inlet of the air flotation machine; the water outlet of the air floatation machine is connected with the water inlet of the anaerobic tank, the water outlet of the anaerobic tank is connected with the water inlet of the primary sedimentation tank, the water outlet of the primary sedimentation tank is connected with the water inlet of the contact oxidation tank, the water outlet of the contact oxidation tank is connected with the water inlet of the secondary sedimentation tank, and the water outlet of the secondary sedimentation tank is connected with the water inlet of the disinfection system. The utility model discloses can be used for retrieving or field irrigation behind the waste water treatment, mud is used for the compost, and the zero release of waste water treatment has solved current milk cow plant waste water treatment effect unstability, and the processing cycle is long, can not stabilize up to standard scheduling problem.
Description
Technical Field
The utility model belongs to the technical field of waste water treatment, concretely relates to wastewater treatment system is bred in dairy farm.
Background
Along with the improvement of living standard of people and the increase of the demand of dairy products, the large-scale breeding is increased day by day, and the environmental problem caused by the dairy cow breeding excrement sewage is more prominent. Therefore, the search for an efficient and low-cost processing method becomes a major research direction.
The wastewater of the dairy farm mainly comprises feces, productive water and domestic water. The waste water has the characteristics of high SS, high organic matter, high ammonia nitrogen and large odor. After flowing out, the water body is seriously eutrophicated and is also a medium for the spread of various diseases.
At present, the domestic large-scale dairy farm breeding wastewater mainly adopts a conventional breeding wastewater treatment system of dry-wet separation, anaerobic biogas production and aerobic biochemical treatment, but because cattle are ruminants eating grass, the dairy farm manure wastewater is different from other breeding wastewater, and the water contains a large amount of fine fibers. Therefore, the development of a system for treating the wastewater from dairy farm cultivation, which aims at the characteristics of the wastewater, has reliable and stable process and relatively low cost and does not cause secondary pollution, is urgently needed.
SUMMERY OF THE UTILITY MODEL
For solving the problem that exists among the prior art, the utility model provides a wastewater treatment system is bred in dairy farm, the utility model discloses be used for retrieving or field irrigation behind the waste water treatment, mud is used for the compost, and the zero release of waste water treatment has solved current dairy farm waste water treatment effect unstability, and the treatment cycle is long, can not stabilize up to standard scheduling problem.
The technical scheme of the utility model is that:
a system for treating breeding wastewater of a dairy farm comprises a spiral shell stacking machine, an air floatation machine, an anaerobic tank, a primary sedimentation tank, a contact oxidation tank, a secondary sedimentation tank and a disinfection system, wherein a water outlet of the spiral shell stacking machine is connected with a water inlet of the air floatation machine; the water outlet of the air floatation machine is connected with the water inlet of the anaerobic tank, the water outlet of the anaerobic tank is connected with the water inlet of the primary sedimentation tank, the water outlet of the primary sedimentation tank is connected with the water inlet of the contact oxidation tank, the water outlet of the contact oxidation tank is connected with the water inlet of the secondary sedimentation tank, and the water outlet of the secondary sedimentation tank is connected with the water inlet of the disinfection system.
Preferably, the utility model discloses dairy farm aquaculture wastewater treatment system still includes that flocculating agent adds feeder apparatus and coagulant and throws feeder apparatus, folds the water inlet of spiral shell machine and the outlet connection that feeder apparatus was thrown to flocculating agent and coagulant, and the water inlet of air supporting machine and the outlet connection that feeder apparatus was thrown to flocculating agent and coagulant are thrown feeder apparatus.
Preferably, the utility model discloses dairy farm aquaculture wastewater treatment system still includes vertical flow formula sludge thickening tank and sludge dewaterer, and the mud entry of vertical flow formula sludge thickening tank is connected with the mud discharging mouth of air supporting machine, and the mud export of vertical flow formula sludge thickening tank is connected with sludge dewaterer's mud entry.
Preferably, the utility model discloses dairy farm aquaculture wastewater treatment system still includes vertical flow formula sludge thickening tank and sludge dewaterer, and the mud discharging mouth in just heavy pond divide into two the tunnel, all the way with the sludge inlet of vertical flow formula sludge thickening tank be connected, another way is connected with the anaerobism pond, the sludge outlet of vertical flow formula sludge thickening tank and sludge dewaterer's sludge inlet are connected.
Preferably, the utility model discloses dairy farm aquaculture wastewater treatment system still includes vertical flow formula sludge thickening tank and sludge dewaterer, and the mud discharging mouth in two heavy ponds divide into three routes, all the way with the sludge inlet of vertical flow formula sludge thickening tank be connected, be connected with the anaerobism pond all the way, another way is connected with the contact oxidation pond, the sludge outlet of vertical flow formula sludge thickening tank and sludge dewaterer's sludge inlet are connected.
Preferably, an inlet of the screw stacking machine is connected with an outlet of the dry-wet separation rear water collecting tank, a water outlet of the sludge dewatering machine is connected to the inlet of the dry-wet separation rear water collecting tank, a water outlet of the vertical flow type sludge concentrating tank is connected to the inlet of the dry-wet separation rear water collecting tank, and a water inlet of the sludge dewatering machine is connected with a flocculating agent feeding device and a coagulant feeding device.
Preferably, the contact oxidation pond is filled with filler and is connected with a blast aeration system.
Preferably, the disinfection system comprises a disinfection tank and a chlorine dioxide generator, wherein a water inlet of the disinfection tank is connected with a water outlet of the secondary sedimentation tank, and the disinfection tank is connected with the chlorine dioxide generator.
Preferably, the water outlet of the disinfection tank is connected with a clean water tank.
The utility model discloses following beneficial effect has:
the utility model discloses milk cow farm aquaculture wastewater treatment system sets up and folds spiral shell machine and air supporting machine, and the raw water reduces suspended solid and organic matter content in the waste water through folding spiral shell machine, air supporting machine, alleviates follow-up anaerobic treatment's the degree of difficulty greatly. The utility model discloses adopt just heavy pond behind the anaerobism pond, just heavy pond is separated here to the elimination mud and the difficult degradation SS that the anaerobism pond effluent brought out, can alleviate the processing load in follow-up contact oxidation pond. The utility model discloses can handle the waste water of raising cattle in the milk cow factory, milking room waste water together, labour saving and time saving to be used for retrieving and field irrigation after with waste water treatment, mud is used for the compost, and is energy-concerving and environment-protective, waste water reuse realizes the waste water zero release, and it is unstable to have solved current plant waste water treatment effect, and the treatment cycle is long, can not stabilize up to standard scheduling problem.
Furthermore, the proportion of the flocculating agent and the coagulating agent can be controlled through a flocculating agent feeding device and a coagulating agent feeding device, so that slag and water separation can be effectively carried out in the screw stacking machine and the air floatation machine, suspended matters in wastewater are reduced, and the difficulty of subsequent anaerobic treatment is reduced.
Furthermore, by arranging the vertical flow type sludge concentration tank and the sludge dewatering machine, the produced sludge can be used for composting and resource utilization, and the separated liquid can be sent into the source of sewage treatment again for retreatment, so that zero discharge or lower discharge of wastewater is realized.
Drawings
FIG. 1 is a process flow diagram of the wastewater treatment process in dairy farm of the present invention;
fig. 2 is a schematic structural view of a dimple air floating machine adopted in the embodiment of the present invention.
In the figure, a screw stacking machine 1, an air flotation machine 2, an anaerobic tank 3, a primary sedimentation tank 4, a contact oxidation tank 5, a secondary sedimentation tank 6, a disinfection tank 7, a clean water tank 8, a sludge concentration tank 9, a sludge dewatering machine 10, a flocculating agent adding device 11, a coagulating agent adding device 12, a blast aeration system 13, a chlorine dioxide generator 14, a pipeline mixer 15, an aerator 16, an aeration chamber 17, a slag scraping machine 18, a separation chamber 19, a scum discharge port 20, a waste liquid discharge port 21 and a slag discharge device 22 are arranged.
Detailed Description
The following detailed description of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a dairy farm cultivation wastewater treatment system, including fold spiral shell machine 1, air supporting machine 2, anaerobism pond 3, primary sedimentation tank 4, contact oxidation pond 5, secondary sedimentation tank 6 and disinfection system, fold the delivery port of spiral shell machine 1 and the water inlet of air supporting machine 2 links to each other; the water outlet of the air floatation machine 2 is connected with the water inlet of the anaerobic tank 3, the water outlet of the anaerobic tank 3 is connected with the water inlet of the primary sedimentation tank 4, the water outlet of the primary sedimentation tank 4 is connected with the water inlet of the contact oxidation tank 5, the water outlet of the contact oxidation tank 5 is connected with the water inlet of the secondary sedimentation tank 6, and the water outlet of the secondary sedimentation tank 6 is connected with the water inlet of the disinfection system.
As the utility model discloses preferred embodiment, the utility model discloses dairy farm aquaculture wastewater treatment system still includes that the flocculating agent is thrown feeder apparatus 11 and coagulant are thrown feeder apparatus 12, folds the water inlet of spiral shell machine 1 and the outlet connection that the flocculating agent was thrown feeder apparatus 11 and coagulant were thrown feeder apparatus 12, and the water inlet of air supporting machine 2 and the outlet connection that the flocculating agent was thrown feeder apparatus 11 and coagulant were thrown feeder apparatus 12.
As the utility model discloses preferred embodiment, the utility model discloses dairy farm aquaculture wastewater treatment system still includes vertical flow formula sludge thickening tank 9 and sludge dewaterer 10, and the mud entry of vertical flow formula sludge thickening tank 9 is connected with the row mud mouth of air supporting machine 2, and the sludge outlet of vertical flow formula sludge thickening tank 9 is connected with the mud entry of sludge dewaterer 10.
As the utility model discloses preferred embodiment, the utility model discloses dairy farm aquaculture wastewater treatment system still includes vertical flow formula sludge thickener 9 and sludge dewaterer 10, and the mud discharging mouth of just sinking pond 4 divide into two the tunnel, all the way with the sludge inlet of vertical flow formula sludge thickener and be connected, another way is connected with anaerobism pond 3, the sludge outlet of vertical flow formula sludge thickener 9 and the sludge inlet of sludge dewaterer 10 are connected.
As the utility model discloses preferred embodiment, the utility model discloses dairy farm aquaculture wastewater treatment system still includes vertical flow formula sludge thickening tank 9 and sludge dewaterer 10, and the mud discharging mouth of secondary sedimentation tank 6 divide into three routes, all the way with the sludge inlet of vertical flow formula sludge thickening tank 9 be connected, be connected with anaerobism pond 3 all the way, another way is connected with contact oxidation pond 5, the sludge outlet of vertical flow formula sludge thickening tank 9 and the sludge inlet of sludge dewaterer 10 are connected.
As the utility model discloses preferred embodiment, fold the exit linkage in spiral shell machine 1's entry and wet separation postcondensation pond futilely, sludge dewaterer 10's delivery port is connected to the entry in wet separation postcondensation pond futilely, and vertical flow type sludge thickening tank 9's delivery port is connected to the entry in wet separation postcondensation pond futilely, and sludge dewaterer 10's water inlet is connected flocculating agent and is thrown feeder apparatus 11 and coagulant and throw feeder apparatus 12.
As the preferred embodiment of the present invention, the contact oxidation tank 5 is filled with a filler, and the contact oxidation tank 5 is connected to the blast aeration system 13.
As the preferred embodiment of the utility model, the disinfection system comprises a disinfection tank 7 and a chlorine dioxide generator 14, the water inlet of the disinfection tank 7 is connected with the water outlet of the secondary sedimentation tank 6, and the disinfection tank 7 is connected with the chlorine dioxide generator 14.
As the preferred embodiment of the utility model, the water outlet of the disinfection tank 7 is connected with a clean water tank 8, and the water from the disinfection tank 7 flows into the clean water tank 8.
The utility model discloses as above the process that wastewater treatment system was bred in dairy farm was used for handling the waste water of breeding in dairy farm, include:
pretreatment: the raw water after the dry-wet separation enters a screw stacking machine 1, and the raw water, a flocculating agent and a coagulating agent are mixed in the screw stacking machine 1 to carry out solid-liquid separation; mixing the liquid separated by the screw stacking machine 1 with a flocculating agent and a coagulant, then feeding the mixture into an air flotation machine 2, and carrying out slag-water separation on the liquid in the air flotation machine 2; scum in the air flotation machine 2 is discharged, and liquid enters an anaerobic tank 3;
biochemical treatment: the anaerobic tank 3 carries out anaerobic treatment on the liquid discharged by the air flotation machine 2, degrades most of substances which are difficult to degrade in the wastewater, then enters a three-phase separator of the anaerobic tank to carry out gas, solid and liquid three-phase separation, and the liquid obtained by separation is discharged into a primary sedimentation tank 4; the liquid discharged from the anaerobic tank 3 is subjected to mud-water separation in a primary sedimentation tank 4, and the separated liquid flows into a contact oxidation tank 5; the contact oxidation pond 5 further degrades organic matters, ammonia nitrogen and phosphorus in the inflowing liquid; the liquid treated by the contact oxidation tank 5 flows into a secondary sedimentation tank 6 for sludge-water separation;
and (3) disinfection treatment: and (3) the liquid in the secondary sedimentation tank 6 enters a disinfection system for disinfection treatment, and the liquid treated by the disinfection system flows into a clean water tank for farmland irrigation or other ways.
Examples
As shown in fig. 1, the device for treating wastewater from dairy farm cultivation in this embodiment comprises a stacking screw machine 1, an air flotation machine 2, an anaerobic tank 3, a primary sedimentation tank 4, a contact oxidation tank 5, a secondary sedimentation tank 6, a disinfection tank 7 and a clean water tank 8 which are connected in sequence with the outlet of a dry-wet separation rear water collection tank. The water discharged from the spiral shell stacking machine 1 enters an air flotation machine 2, and the solid separated by the spiral shell stacking machine 1 is used for composting; scum of the air floatation machine 2, sludge in the primary sedimentation tank 4 and sludge in the secondary sedimentation tank 6 are all sent into a sludge concentration tank 9, the sludge concentrated by the sludge concentration tank 9 is dewatered by a sludge dewatering machine 10, the solid dewatered by the sludge dewatering machine 10 is used for composting, and the liquid obtained by dewatering is returned to a raw water tank; the water inlets of the spiral shell stacking machine 1, the air flotation machine 2 and the sludge dewatering machine 10 are connected with a flocculating agent adding device 11 and a coagulating agent adding device 12, a flocculating agent in the flocculating agent adding device 11 and a coagulating agent in the coagulating agent adding device 12 are mixed according to a proportion, and mixed liquid enters the spiral shell stacking machine 1, the air flotation machine 2 and the sludge dewatering machine 10. The waste water in the disinfection tank 7 is disinfected by chlorine dioxide, a chlorine dioxide disinfector 14 is connected with the disinfection tank 7 by a pipeline, and the liquid disinfected by the disinfection tank 7 flows into the clean water tank 8. Wherein the air floating machine 2 adopts a concave-convex air floating machine (as shown in figure 2). The anaerobic tank 3 adopts a UASB anaerobic reactor. The sludge in the secondary sedimentation tank 6 flows back to the anaerobic tank 3 and the contact oxidation tank 5 through pipelines. One part of the sludge in the primary sedimentation tank 4 flows back to the anaerobic tank 3, and the other part is sent to a sludge concentration tank 9. The primary sedimentation tank 4 and the secondary sedimentation tank 6 adopt vertical flow sedimentation tanks. The sludge concentration tank 9 adopts a vertical flow sedimentation tank, and the supernatant liquid flows back to the raw water tank. The sludge dewatering machine 10 is a belt filter press, the dewatered sludge is used for composting, and the wastewater flows back to the raw water pool. The contact oxidation tank 5 is filled with filler and is connected with a blower 13.
The wastewater water taking point of the dairy farm breeding wastewater treatment device is the water outlet of the dry-wet separated water collecting tank, namely the screw folding machine 1 is connected with the water outlet of the dry-wet separated water collecting tank, and the water collecting tank adjusts the quality and quantity of wastewater. The wastewater treatment process of the dairy farm breeding wastewater treatment device comprises pretreatment, biochemical treatment and disinfection treatment.
Pretreatment: raw water flowing out of a water outlet of the water collecting tank after the dry-wet separation enters the spiral shell stacking machine 1, the spiral shell stacking machine 1 performs solid-liquid separation on mixed liquid obtained by mixing the raw water with the chemicals added by the flocculating agent dosing device 11 and the coagulant dosing device 12, and suspended matters with a large particle diameter ratio in the mixed liquid are removed. And (3) performing composting treatment on solid separated from liquid, enabling the liquid to enter a pit-concave air flotation machine, mixing the liquid with the medicaments added by a flocculating agent dosing device 11 and a coagulant dosing device 12 again, enabling the mixed liquid to enter an aeration chamber of the air flotation machine for aeration, then separating in a separation chamber, enabling scum to flow into a sludge concentration tank 9, removing most of the SS (suspended substances) in the wastewater after removing the fine suspended substances, and then enabling the wastewater to enter a UASB anaerobic reaction tank 3.
Biochemical treatment: the anaerobic reaction tank 3 is an up-flow anaerobic sludge bed reactor, the upper part is provided with a gas-solid-liquid three-phase separator, the lower part is a sludge area, waste water enters the anaerobic reaction tank 3 from the bottom and is decomposed into methane, water and carbon dioxide by anaerobic bacteria, then the waste water rises to the three-phase separator to realize the separation of gas, liquid and solid, and the liquid flows into the primary sedimentation tank 4. And (3) realizing sludge-water separation in the primary sedimentation tank 4, refluxing a part of separated sludge to the anaerobic tank 3, keeping the high sludge concentration of the anaerobic reaction tank 3, and discharging a part of separated sludge to a sludge concentration tank 9. The primary sedimentation tank 4 is a vertical flow sedimentation tank, supernatant flowing out of the overflow weir enters the contact oxidation tank 5, and the contact oxidation tank 5 is filled with filler, so that organic matters, ammonia nitrogen and phosphorus in wastewater can be degraded. The contact oxidation pond 5 is connected with a blast aeration system 13. The contact oxidation tank 5 is connected with a secondary sedimentation tank 6, the secondary sedimentation tank 6 is a vertical flow type sludge concentration tank, and the effluent of an overflow weir of the secondary sedimentation tank 6 enters a disinfection tank 7. The secondary sedimentation tank 6 is connected with the contact oxidation tank 5 and the anaerobic reaction tank 3, sludge in the secondary sedimentation tank 6 can flow back to the contact oxidation tank 5 and the anaerobic reaction tank 3, the sludge concentration and load of each treatment area are ensured, and nitrogen and phosphorus removal is carried out simultaneously.
And (3) disinfection treatment: the disinfection is carried out by adopting chlorine dioxide, and the disinfection tank 7 is connected with a chlorine dioxide generator 14. Because the livestock and poultry breeding wastewater contains a large amount of bacteria and viruses, disinfection treatment is required. The effluent of the disinfection tank 7 enters a clean water tank 8.
The utility model discloses a have following several and have a bit:
1. the utility model discloses according to the different characteristics of milk cow farm waste water and other aquaculture waste water, conventional waste water preliminary treatment generally is for doing wet separation, can only get rid of the pollutant of large granule, and the effect is not good to suspended solid removal in the waste water, directly gets into biochemical system, influences biochemical system's effect. This device sets up and folds spiral shell machine and air supporting device, and the raw water reduces suspended solid and organic matter content in the waste water through folding spiral shell machine, air supporting, alleviates follow-up anaerobic treatment's the degree of difficulty greatly.
2. The utility model discloses contain higher fibrous suspended solid to the dairy farm waste water, consider to lead to the fact the easy stifled condition of releaser with general dissolved air supporting, this device air supporting adopts nest concave air supporting machine. The pit-concave air flotation machine has the characteristics of larger bubble diameter, wide size distribution, high scum solid content and easy maintenance, and is more suitable for the dairy farm wastewater containing high-fiber substances than the dissolved air flotation for general aquaculture wastewater.
3. The utility model discloses adopt behind the anaerobism pond and just sink the pond, just sink the pond and go out to the anaerobism pond effluent and take elimination mud and the difficult degradation SS of going out and separate here, the mud of separation partly flows back to the anaerobism pond, and partly gets into the sludge impoundment, and water gets into the contact oxidation pond. This not only can alleviate the treatment load of the subsequent contact oxidation pond, but also can guarantee the high load and the high sludge concentration of the anaerobic pond.
4. The utility model discloses with the waste water of raising cattle in the milk cow factory, milking waste water handles together, labour saving and time saving to be used for retrieving and field irrigation behind the waste water treatment, mud is used for the compost, and is energy-concerving and environment-protective, waste water reuse realizes the waste water zero release, and it is unstable to have solved current plant waste water treatment effect, and the treatment cycle is long, can not stabilize up to standard scheduling problem.
Claims (9)
1. A wastewater treatment system for dairy farm culture is characterized by comprising a spiral shell stacking machine (1), an air flotation machine (2), an anaerobic tank (3), a primary sedimentation tank (4), a contact oxidation tank (5), a secondary sedimentation tank (6) and a disinfection system, wherein a water outlet of the spiral shell stacking machine (1) is connected with a water inlet of the air flotation machine (2); the water outlet of the air floatation machine (2) is connected with the water inlet of the anaerobic tank (3), the water outlet of the anaerobic tank (3) is connected with the water inlet of the primary sedimentation tank (4), the water outlet of the primary sedimentation tank (4) is connected with the water inlet of the contact oxidation tank (5), the water outlet of the contact oxidation tank (5) is connected with the water inlet of the secondary sedimentation tank (6), and the water outlet of the secondary sedimentation tank (6) is connected with the water inlet of the disinfection system.
2. The dairy farm aquaculture wastewater treatment system according to claim 1, further comprising a flocculant adding device (11) and a coagulant adding device (12), wherein a water inlet of the spiral shell stacking machine (1) is connected with an outlet of the flocculant adding device (11) and an outlet of the coagulant adding device (12), and a water inlet of the air flotation machine (2) is connected with an outlet of the flocculant adding device (11) and an outlet of the coagulant adding device (12).
3. The dairy farm aquaculture wastewater treatment system according to claim 1, further comprising a vertical flow type sludge concentration tank (9) and a sludge dewatering machine (10), wherein a sludge inlet of the vertical flow type sludge concentration tank (9) is connected with a sludge discharge port of the air flotation machine (2), and a sludge outlet of the vertical flow type sludge concentration tank (9) is connected with a sludge inlet of the sludge dewatering machine (10).
4. The dairy farm aquaculture wastewater treatment system according to claim 1, further comprising a vertical flow type sludge concentration tank (9) and a sludge dewatering machine (10), wherein a sludge discharge port of the primary sedimentation tank (4) is divided into two paths, one path is connected with a sludge inlet of the vertical flow type sludge concentration tank (9), the other path is connected with the anaerobic tank (3), and a sludge outlet of the vertical flow type sludge concentration tank (9) is connected with a sludge inlet of the sludge dewatering machine (10).
5. The dairy farm aquaculture wastewater treatment system according to claim 1, further comprising a vertical flow type sludge concentration tank (9) and a sludge dewatering machine (10), wherein the sludge discharge port of the secondary sedimentation tank (6) is divided into three paths, one path is connected with the sludge inlet of the vertical flow type sludge concentration tank (9), the other path is connected with the anaerobic tank (3), the other path is connected with the contact oxidation tank (5), and the sludge outlet of the vertical flow type sludge concentration tank (9) is connected with the sludge inlet of the sludge dewatering machine (10).
6. The dairy farm aquaculture wastewater treatment system according to claim 3, 4 or 5, wherein an inlet of the screw stacking machine (1) is connected with an outlet of the dry-wet separation water collecting tank, a water outlet of the sludge dewatering machine (10) is connected to the inlet of the dry-wet separation water collecting tank, a water outlet of the vertical flow type sludge concentrating tank (9) is connected to the inlet of the dry-wet separation water collecting tank, and a water inlet of the sludge dewatering machine (10) is connected with a flocculant adding device (11) and a coagulant adding device (12).
7. The wastewater treatment system for dairy farm cultivation according to claim 1, wherein the contact oxidation pond (5) is filled with a filler, and the contact oxidation pond (5) is connected to the blast aeration system (13).
8. The dairy farm aquaculture wastewater treatment system according to claim 1, wherein the disinfection system comprises a disinfection tank (7) and a chlorine dioxide generator (14), the water inlet of the disinfection tank (7) is connected with the water outlet of the secondary sedimentation tank (6), and the disinfection tank (7) is connected with the chlorine dioxide generator (14).
9. The dairy farm aquaculture wastewater treatment system according to claim 8, characterized in that a clean water tank (8) is connected to the water outlet of the disinfection tank (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023106994.5U CN214192943U (en) | 2020-12-21 | 2020-12-21 | Wastewater treatment system for dairy farm breeding |
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| CN202023106994.5U CN214192943U (en) | 2020-12-21 | 2020-12-21 | Wastewater treatment system for dairy farm breeding |
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| CN214192943U true CN214192943U (en) | 2021-09-14 |
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| CN202023106994.5U Active CN214192943U (en) | 2020-12-21 | 2020-12-21 | Wastewater treatment system for dairy farm breeding |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A treatment system for dairy farm wastewater Effective date of registration: 20220620 Granted publication date: 20210914 Pledgee: Hanhua Financing Guarantee Co.,Ltd. Shaanxi Branch Pledgor: XI'AN DINGYAN TECHNOLOGY CO.,LTD. Registration number: Y2022610000318 |
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Date of cancellation: 20230721 Granted publication date: 20210914 Pledgee: Hanhua Financing Guarantee Co.,Ltd. Shaanxi Branch Pledgor: XI'AN DINGYAN TECHNOLOGY CO.,LTD. Registration number: Y2022610000318 |
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