Nitrogen and phosphorus removal filter with ozone micro-ecological environment and use method

Abstract

The invention aims to provide the nitrogen and phosphorus removal filter with the ozone micro-ecological environment and the use method, wherein the nitrogen and phosphorus removal filter is used for removing nitrogen and phosphorus through microorganisms and treating tail water through ultraviolet sterilization. According to the invention, the barrel body is provided with a water inlet; the mechanical filtering module is arranged on the barrel body, is connected with the water inlet and is used for filtering and primarily treating tail water; the ozone microorganism module is arranged between the mechanical filtering module and the barrel body and is communicated with the mechanical filtering module, an anaerobic zone, a facultative oxygen zone and an aerobic zone are formed in the ozone microorganism module, and nitrification and denitrification reactions are fully carried out for recirculating aquaculture and nitrogen and phosphorus removal treatment of aquaculture tail water; and the ultraviolet module is arranged on the outer side of the barrel body and is used for sterilizing and disinfecting the culture water or the culture tail water. The invention is applied to the technical field of nitrogen and phosphorus removal filters for factory circulating water culture and culture tail water treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of denitrification and dephosphorization filters, and in particular to a denitrification and dephosphorization filter with a trioxygen microecological environment and a method of using the filter. Background Art

[0002] At present, the rapid development of aquaculture has solved the food problem to a certain extent, met people's demand for aquatic products, and solved the problem of relative shortage of natural fishery resources. However, the rapid development of aquaculture has brought serious pollution to the marine ecological environment, which has become a bottleneck that is difficult to break through in my country's aquaculture industry, and seriously restricted the sustainable development of my country's aquaculture industry. In marine fish farming, its metabolites account for 20% to 35% of the feed amount, and the residual feed accounts for 10% to 40% of the feed amount, which is directly discharged into the water body, thereby reducing the dissolved oxygen in the water, increasing ammonia nitrogen, nitrite nitrogen, and nitrate nitrogen, leading to eutrophication of the water body or deterioration of water quality.

[0003] The current common practice to address this problem is to continuously discharge the tail water at the bottom of the pond for treatment and continuously add new water. This method will lead to a continuous increase in water consumption and high aquaculture costs. If the tail water is not treated and discharged directly, it will also pollute the environment. On the other hand, since the temperature and water quality of the added new water are inconsistent with those in the original pond, fish will have a stress response that affects their normal growth and even leads to death. A denitrification and phosphorus removal filter is needed that can reduce the addition of new water and circulate and disinfect the aquaculture tail water. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a denitrification and dephosphorization filter with a trioxygen microecological environment that removes nitrogen and phosphorus through microorganisms and has ultraviolet sterilization and disinfection to treat tail water, and a method for using the same.

[0005] The technical solution adopted by the present invention is: the present invention comprises a barrel body, the barrel body is provided with a water inlet; a mechanical filtration module is arranged on the barrel body and connected with the water inlet, and is used for factory-scale circulating aquaculture and aquaculture tail water treatment; a three-oxygen microorganism module is arranged between the mechanical filtration module and the barrel body and is connected with the mechanical filtration module, the three-oxygen microorganism module forms an anaerobic zone, a facultative aerobic zone and an aerobic zone, and is used for circulating aquaculture and denitrification and phosphorus removal of aquaculture tail water; an ultraviolet module is arranged on the outside of the barrel body and is used for sterilizing and disinfecting aquaculture water or aquaculture tail water.

[0006] Further, the mechanical filtration module includes a filter barrel, a cyclone filter assembly, a first filter group and a drain pipe, the filter barrel is arranged in the middle of the barrel body and connected to the water inlet, the cyclone filter assembly is arranged in the middle of the filter barrel and located above the water inlet, the filter barrel is formed with a first pad and a connecting groove, the first pad is arranged on the inner wall of the filter barrel and located above the cyclone filter assembly, the first filter group is connected to the first pad, the connecting groove is arranged outside the filter barrel and connected to the trioxygen microorganism module, the drain pipe is arranged at the bottom of the filter barrel, and the drain pipe is connected to an external pipeline.

[0007] Further, the cyclone filter assembly includes a cyclone inlet pipe, a first water inlet cone plate, a cyclone cone plate and a cyclone elbow, the cyclone inlet pipe is connected to the water inlet, the first water inlet cone plate is arranged in the middle of the filter barrel and above the cyclone inlet pipe, the cyclone cone plate is arranged above the first water inlet cone plate, the cyclone cone plate is formed with a cyclone cleaning pipe, the cyclone cleaning pipe passes through the bottom of the first water inlet cone plate, and the cyclone elbow is arranged on the cyclone cone plate.

[0008] Furthermore, the filter barrel is provided with a water diversion trough and a water diversion port, the water diversion trough is arranged along the upper circumference of the filter barrel, the water diversion ports are arranged at equal intervals on the upper edge of the filter barrel, and the connecting trough is connected to the water diversion trough.

[0009] Furthermore, the ultraviolet module includes a connecting barrel, an ultraviolet water inlet pipe, an ultraviolet water outlet pipe and an ultraviolet lamp. The connecting barrel is arranged on the outside of the barrel body, one end of the ultraviolet water inlet pipe is connected to the barrel body, the other end of the ultraviolet water inlet pipe is connected to the lower part of the connecting barrel, the ultraviolet water outlet pipe is connected to the upper part of the connecting barrel, the ultraviolet lamp is arranged in the middle part of the connecting barrel, and a drain pipe is formed at the lower end of the connecting barrel.

[0010] Furthermore, the trioxygen microbial module includes a partition, a trioxygen aeration element, a second filter group and a sewage discharge assembly. The partition is arranged between the barrel body and the mechanical filtration module, and the anaerobic zone, the facultative aerobic zone and the aerobic zone are separated. The trioxygen aeration element is arranged on the outside of the barrel body and connected to the aerobic zone. The barrel body is formed with a second pad, and the second filter group is connected to the second pad. The sewage discharge assembly is arranged at the bottom of the barrel body and is connected to the aerobic zone and the anaerobic zone and the facultative aerobic zone.

[0011] Furthermore, the sewage discharge assembly includes a sewage collecting plate, an outflow pipe and a regulating valve. The sewage collecting plate is arranged at the lower part of the barrel body and is connected to the anaerobic zone, the facultative aerobic zone and the aerobic zone. The sewage collecting plate is formed with a sewage discharge port. The outflow pipe is connected to the sewage discharge port. The first end of the regulating valve is connected to the outflow pipe, and the second end of the regulating valve is connected to an external pipeline.

[0012] Furthermore, the water diversion trough is provided with a water flow outlet, the three-oxygen microorganism module includes a plurality of hydrophobic plates, intercepting plates, oxygen-enhancing aeration components and a plurality of fiber filter groups, each of the hydrophobic plates is arranged between the barrel body and the mechanical filtration module, the intercepting plate is fixedly connected to the mechanical filtration module, the intercepting plate is arranged below the water flow outlet, the oxygen-enhancing aeration components are arranged along the bottom of the barrel body, one end of each of the fiber filter groups is fixedly connected to the bottom of the barrel body, and the other end of each of the fiber filter groups is fixedly connected to the upper part of the barrel body, and a dredging component is arranged at the bottom of the barrel body.

[0013] Furthermore, the fiber filter group includes a first connecting plate, a second connecting plate and a plurality of filter fibers, the first connecting plate is detachably mounted on the top of the barrel body, the second connecting plate is detachably mounted on the bottom of the barrel body, and each of the filter fibers is arranged between the first connecting plate and the second connecting plate.

[0014] Further, a method for using a denitrification and dephosphorization filter having a trioxygen microecological environment comprises the following steps:

[0015] S1. Connect and install the trioxygen microorganism module, the mechanical filtration module and the ultraviolet module in the barrel, put aerobic bacteria in the aerobic zone, put anaerobic bacteria in the anaerobic zone and the facultative aerobic zone, and put facultative aerobic bacteria in the first filtration group;

[0016] S2, adding tail water from the water inlet, the vortex inflow pipe makes the tail water form a first vortex in the filter barrel, and the particles and suspended matter are deposited at the bottom of the filter barrel. The tail water flows in along the first water inlet cone plate and flows out from the vortex elbow to form a second vortex. The second vortex deposits the particles and suspended matter in the tail water for a second time, and flows to the bottom of the filter barrel along the vortex cleaning pipe. The first filter group filters and preliminarily decomposes the aquaculture water and the aquaculture tail water through facultative anaerobic bacteria.

[0017] S3, the tail water flows from the water diversion port into the water diversion tank, and enters the aerobic zone and the anaerobic zone and the facultative aerobic zone along the connecting tank, and the tail water gradually fills the aerobic zone and the anaerobic zone and the facultative aerobic zone from bottom to top, and the aerobic bacteria and the anaerobic bacteria decompose the aquaculture water and the aquaculture tail water respectively;

[0018] S4, the tail water treated in the aerobic zone and the anaerobic zone is collected in the water collection tank along the outflow port, and flows into the connecting barrel through the ultraviolet water inlet pipe, the aquaculture water and aquaculture tail water enter from the bottom of the connecting barrel, and flow out from the top of the connecting barrel, and the ultraviolet lamp performs ultraviolet sterilization on the aquaculture water and aquaculture tail water;

[0019] S5. The pollutants accumulated at the bottom of the filter barrel are regularly cleaned and discharged through the sewage pipe.

[0020] The beneficial effects of the present invention are as follows: since the present invention adopts the cyclone inflow pipe design of the mechanical filtration module to perform secondary cyclone sedimentation on the incoming tail water, through the centrifugal force and gravity sedimentation during the rotation of the tail water, the suspended particles are separated outward by the centrifugal force and finally deposited on the bottom of the pool, and the precipitated silt is concentrated on the bottom of the pool, and the silt is removed during the periodic cleaning process, thereby achieving the purpose of tail water purification, and the grating of the first filter group, the first fiber ball and the facultative oxygen bacteria in the first fiber ball are used to filter and decompose the tail water for pre-treatment;

[0021] The ozone microbial module forms an anaerobic zone, a facultative aerobic zone and an aerobic zone between the mechanical filtration module and the barrel body through equally spaced partitions. The aerobic zone is partially connected to the aeration pipe, and the aeration pipe is connected to the external ozone generator and the air pump. The air is mixed and input into the aerobic zone to oxidize the inorganic and organic matter in the water. The aerobic bacteria in the aerobic zone decompose the organic small molecules into inorganic substances. The anaerobic and facultative aerobic zones decompose the organic macromolecules in the tail water into organic small molecules through anaerobic bacteria. The ultraviolet module performs ultraviolet disinfection on the tail water treated in the aerobic zone and the anaerobic and facultative aerobic zones to further kill pathogens, reduce the possibility of aquaculture diseases, and improve the success rate of aquaculture. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0023] Figure 2 is another perspective of the structural schematic diagram of the first embodiment of the present invention;

[0024] Figure 3 is a cross-sectional view of the first embodiment of the present invention;

[0025] Figure 4 yes Figure 3 A partial enlarged view of part A;

[0026] Figure 5 yes Figure 3 A partial enlarged view of part B;

[0027] Figure 6 It is a schematic diagram of the structure of the cyclone filter assembly of the present invention;

[0028] Figure 7 is a cross-sectional view of a cyclone filter assembly of the present invention;

[0029] Figure 8 It is a structural schematic diagram of a sewage discharge assembly according to an embodiment of the present invention;

[0030] Fig. 9 is an exploded view of the UV module of the present invention;

[0031] Fig.10 is a cross-sectional view of the second embodiment;

[0032] Fig.11 is a top view of the trioxygen microorganism module in Example 2 of the present invention;

[0033] Fig.12 It is a top view of the water flow direction of the second embodiment of the present invention.

[0034] In the figure: 1, barrel; 11, second cushion block; 12, water collecting tank; 13, outflow port; 2, water inlet; 3, mechanical filtration module; 31, filter barrel; 311, water distribution tank; 312, water distribution port; 32, cyclone filter assembly; 321, cyclone inflow pipe; 322, first water inlet cone plate; 323, cyclone cone plate; 324, cyclone elbow; 33, first filtration group; 34, sewage pipe; 35, first cushion block; 36, connecting tank; 4, tri-oxygen microorganism module; 41a, partition; 42a, tri-oxygen aeration element; 43a, second filter group; 44a, sewage discharge assembly; 441a, sewage collecting plate; 442a, outflow pipe; 443a, regulating valve; 5, UV module; 51, connecting barrel; 52, UV water inlet pipe; 53, UV water outlet pipe; 54, UV lamp; 55, drain pipe; 6, anaerobic zone, facultative aerobic zone; 7, aerobic zone;

[0035] 41b, hydrophobic plate; 42b, intercepting plate; 43b, oxygen-enhancing aeration element; 44b, fiber filter group; 45b, silt-clearing element; 46b, filter fiber. DETAILED DESCRIPTION

[0036] Embodiment 1

[0037] like Figures 1 to 9As shown, in this embodiment, the present invention includes a barrel body 1, and the barrel body 1 is provided with a water inlet 2; a mechanical filtration module 3, which is arranged in the barrel body 1 and connected to the water inlet 2, and is used for factory-scale circulating water aquaculture and aquaculture tail water treatment; a trioxygen microorganism module 4, which is arranged between the mechanical filtration module 3 and the barrel body 1 and is connected to the mechanical filtration module 3, and the trioxygen microorganism module 4 is formed with an anaerobic zone, a facultative oxygen zone 6 and an aerobic zone 7, which are used for circulating water aquaculture and aquaculture tail water denitrification and phosphorus removal treatment; an ultraviolet module 5, which is arranged on the outside of the barrel body 1, and is used for sterilizing and disinfecting aquaculture water or aquaculture tail water. The barrel body 1 is cylindrical as a whole and can accommodate more tail water. The cyclone inflow pipe 321 of the mechanical filtration module 3 is designed to cyclone sediment the incoming tail water. Through the centrifugal force and gravity sedimentation during the rotation of the tail water, the suspended particles are separated outward by the centrifugal force and finally deposited at the bottom of the pool. The precipitated silt is concentrated at the bottom of the pool. During the periodic cleaning process, The sediment is removed during the process, thereby achieving the purpose of tail water purification. The tail water is filtered and decomposed pre-treated in cooperation with the grid of the first filter group 33, the first fiber ball and the facultative aerobic bacteria in the first fiber ball. The three-oxygen microorganism module 4 forms an anaerobic zone, a facultative aerobic zone 6 and an aerobic zone 7 between the mechanical filtration module 3 and the barrel body 1 through the partitions 41a arranged at equal intervals. The aerobic zone 7 is partially connected to the three-oxygen aeration member 42a, and the three-oxygen aeration member 42a is connected to the external three-oxygen generator and the air pump. The air is mixed and input into the aerobic zone 7 to oxidize the inorganic and organic substances in the water. The aerobic bacteria in the second fiber ball located in the middle and upper part decompose the organic small molecules into inorganic substances. The anaerobic zone and the facultative aerobic zone 6 decompose the organic macromolecules in the tail water into organic small molecules through the anaerobic bacteria in the second fiber ball. The ultraviolet module 5 performs ultraviolet disinfection on the tail water treated by the aerobic zone and the anaerobic zone and the facultative aerobic zone 6 to further kill the pathogens, reduce the possibility of aquaculture diseases, and improve the success rate of aquaculture.

[0038] In this embodiment, the mechanical filtration module 3 includes a filter barrel 31, a cyclone filter assembly 32, a first filter group 33 and a sewage pipe 34. The filter barrel 31 is arranged in the middle of the barrel body 1 and is connected to the water inlet 2. The cyclone filter assembly 32 is arranged in the middle of the filter barrel 31 and is located above the water inlet 2. The filter barrel 31 is formed with a first cushion block 35 and a connecting groove 36. The first cushion block 35 is arranged on the inner wall of the filter barrel 31 and is located above the cyclone filter assembly 32. The first filter group 33 is connected to the first cushion block 35. The connecting groove 36 is arranged on the outside of the filter barrel 31 and is connected to the trioxygen microorganism module 4. Then, the sewage pipe 34 is arranged at the bottom of the filter barrel 31, and the sewage pipe 34 is connected with the external pipeline. One or more groups of first cushion blocks 35 are provided, and the first cushion blocks 35 of the plurality of groups are respectively arranged on the inner wall of the filter barrel 31, and are used to support the first limiting grid. One or more groups of connecting grooves 36 are provided, and the connecting grooves 36 of the plurality of groups are arranged at equal intervals on the outer wall of the filter barrel 31, and one end of the connecting groove 36 is connected with the water diversion groove 311, and the other end of the connecting groove 36 is opened and arranged at the lower part of the aerobic zone 7 or the anaerobic zone facultative aerobic zone 6. The tail water flows from the aerobic zone 7 or the anaerobic zone facultative aerobic zone 6 from bottom to top, increasing the water flow distance and slowing down the water flow speed, so that the nitrification reaction and denitrification reaction process are more sufficient;

[0039] The cyclone filter assembly 32 is precipitated by the centrifugal force and gravity during the rotation of the tail water. The suspended particles are separated outward by the centrifugal force and finally deposited on the bottom of the pool. The precipitated silt is concentrated at the bottom of the pool. The silt is removed during the periodic cleaning process, thereby achieving the purpose of tail water purification. A conical sewage collection tank with a diameter gradually decreasing from top to bottom is formed at the lower part of the filter barrel 31. A sewage discharge pipe 34 is arranged at the bottom of the sewage collection tank. The sewage discharge pipe 34 is connected to an external timed sewage pumping mechanism to discharge the sludge accumulated in the conical sewage collection tank at a regular time, reduce the accumulation of waste residue in the sewage discharge pipe 34, and ensure the sewage discharge effect and water treatment effect. The first filter group 33 includes a first grid and a first fiber ball. A dense porous structure is formed in the first fiber ball. The first fiber ball contains facultative oxygen bacteria. The facultative oxygen bacteria preliminarily decompose the tail water. The first fiber ball can also slow down the water flow speed in the filter barrel 31, so that the tail water is fully in contact with the facultative oxygen bacteria.

[0040] In this embodiment, the cyclone filter assembly 32 includes a cyclone inlet pipe 321, a first water inlet cone plate 322, a cyclone cone plate 323 and a cyclone elbow 324. The cyclone inlet pipe 321 is connected to the water inlet 2. The first water inlet cone plate 322 is arranged in the middle of the filter barrel 31 and is located above the cyclone inlet pipe 321. The cyclone cone plate 323 is arranged above the first water inlet cone plate 322. The cyclone cone plate 323 is formed with The swirl cleaning pipe 325 passes through the bottom of the first water inlet cone plate 322. The swirl elbow 324 is arranged on the swirl cone plate 323. The swirl inlet pipe 321 is a curved pipe structure. The swirl inlet pipe 321 is installed at the water inlet end of the water inlet 2 and is inclined downward by 10-15 degrees. A plurality of water inlet holes are formed at the bottom of the first water inlet cone plate 322. The tail water forming the swirl flows along the water inlet holes and enters between the first water inlet cone plate 322 and the swirl cone plate 323. The swirl elbow 324 is provided with one or more groups, and the multiple groups of swirl elbows 324 are connected to the swirl cone plate 323 at equal intervals in a counterclockwise direction, and are connected to the space between the first water inlet cone plate 322 and the swirl cone plate 323. The swirl tail water flows out from the swirl elbow 324 from bottom to top, and the outflowing tail water moves along the direction of the swirl elbow 324 and forms a swirl. The swirl located above the swirl cone plate 323 performs secondary swirl deposition on the debris in the tail water, and the deposited suspended matter The waste flows out to the bottom of the conical sewage collecting tank through the cyclone cleaning pipe 325. The double-conical structure design is used in conjunction with the inclined cyclone inlet pipe 321, so that the incoming tail water forms a cyclone in the filter barrel 31, and the suspended matter mixed in the tail water is centrifugally separated. Under the action of the cyclone, it flows to the center of the filter barrel 31 and settles to the bottom of the pool. The particulate matter and suspended matter continue to accumulate, and the particulate matter and suspended matter mixed in the tail water are discharged regularly in conjunction with the discharge pipe, thereby improving the filtration efficiency and water treatment effect of subsequent tail water treatment.

[0041] In this embodiment, the filter barrel 31 is provided with a water diversion trough 311 and a water diversion port 312. The water diversion trough 311 is arranged along the upper circumference of the filter barrel 31, and the water diversion port 312 is arranged at equal intervals on the upper edge of the filter barrel 31. The connecting groove 36 is connected to the water diversion trough 311, and the water diversion port 312 is V-shaped and arranged at equal intervals on the upper edge of the filter barrel 31. The tail water accumulates from bottom to top and overflows into the water diversion trough 311 along the water diversion port 312. The lower part of the water diversion trough 311 is connected to each group of connecting grooves 36, and the tail water enters the aerobic zone 7 and the anaerobic zone facultative aerobic zone 6 along the connecting groove 36.

[0042] In this embodiment, the trioxygen microorganism module 4 includes a partition 41a, a trioxygen aeration element 42a, a second filter group 43a and a sewage discharge assembly 44a. The partition 41a is arranged between the barrel body 1 and the mechanical filtration module 3, and the anaerobic zone facultative aerobic zone 6 and the aerobic zone 7 are formed by intervals. The trioxygen aeration element 42a is arranged on the outside of the barrel body 1 and is connected to the aerobic zone 7. The barrel body 1 is formed with a second cushion block 11, and the second filter group 43a is connected to the second cushion block 11. The sewage discharge assembly 44a is arranged at the bottom of the barrel body 1 and is connected to the aerobic zone 7 and the anaerobic zone facultative aerobic zone 6. The partition 41a is provided with one or more groups, and the multiple groups of partitions 41a are arranged at equal intervals. It is connected to the filter barrel 31 and the inner wall of the barrel body 1, and a separate reaction zone is formed between the two groups of partitions 41a, so that the equipment can simultaneously carry out nitrification and denitrification reactions, reduce the ammonia nitrogen content in the water during the aquaculture water circulation process, and improve the treatment efficiency and treatment effect of harmful substances in the wastewater. The residual harmful substances in the treated water body are extremely small, and it can be reused as aquaculture water for recycling, saving water resources. The three-oxygen aeration element 42a is connected to the external three-oxygen generator and the air pump. The air is mixed and pumped into the aerobic zone 7 to form dense bubbles, oxidizing the inorganic and organic substances in the water. The second pad 11 is provided with one or more groups. The multiple groups of second pads 11 are arranged at equal intervals along the inner wall of the barrel body 1, which are used to limit and fix the second grid. The second pads 11 gradually increase in size from top to bottom.

[0043] In this embodiment, the sewage discharge component 44a includes a sewage collecting plate 441a, an outflow pipe 442a and a regulating valve 443a. The sewage collecting plate 441a is arranged at the lower part of the barrel body 1 and is connected to the anaerobic zone, the facultative aerobic zone 6 and the aerobic zone 7. The sewage collecting plate 441a is formed with a sewage discharge port 444a. The outflow pipe 442a is communicated with the sewage discharge port 444a. The first end of the regulating valve 443a is communicated with the outflow pipe 442a. The second end of the regulating valve 443a is communicated with the external pipeline. The sewage collecting plate 441a is connected to the partition plate 41a, and cooperates with the cavity formed by the filter barrel 31 and the barrel body 1. The sewage collecting plate 441a is used to collect sludge and dirt deposited in the cavity. The regulating valve 443a is opened at a fixed time to discharge the sludge and dirt deposited on the sewage collecting plate 441a, thereby improving the filtration efficiency and water treatment effect of subsequent tail water treatment.

[0044] In this embodiment, the second filter group 43a includes a second grid and a second fiber ball. The second grid is supported and matched with the second cushion block 11. The second fiber ball floats below the second grid. The second fiber ball located on the side of the aerobic zone 7 is provided with aerobic bacteria. The second fiber ball located on the side of the anaerobic zone 6 is provided with anaerobic bacteria. The second fiber ball has a dense porous structure. The second fiber ball can also slow down the water flow rate, so that the aquaculture tail water is fully contacted and reacted with the aerobic bacteria or the anaerobic bacteria, thereby improving the treatment efficiency and treatment effect of harmful substances in the wastewater.

[0045] In the aerobic zone 7 of the first embodiment, aerobic bacteria are produced at 80% of the outer layer of the second fiber ball to react with the aquaculture tail water, and facultative aerobic bacteria are produced at 20% of the inner layer of the second fiber ball. The aerobic bacteria and facultative aerobic bacteria in the second fiber ball in the aerobic zone can be naturally produced in the tail water treatment environment or put in in advance by the staff;

[0046] In the mechanical filtration assembly of the first embodiment, facultative aerobic bacteria are produced at 80% of the outer layer of the first fiber ball to react with the aquaculture tail water, and anaerobic bacteria are produced at 20% of the inner layer of the second fiber ball. The facultative bacteria in the first fiber ball can be naturally produced in the tail water treatment environment or put in in advance by the staff;

[0047] In the anaerobic zone and facultative aerobic zone of the first embodiment, all the second fiber balls produce anaerobic bacteria. The anaerobic bacteria in the anaerobic zone can be naturally generated in the tail water treatment environment or put in advance by the staff.

[0048] In this embodiment, the ultraviolet module 5 includes a connecting barrel 51, an ultraviolet water inlet pipe 52, an ultraviolet water outlet pipe 53 and an ultraviolet lamp 54. The connecting barrel 51 is arranged on the outside of the barrel body 1, one end of the ultraviolet water inlet pipe 52 is connected to the barrel body 1, the other end of the ultraviolet water inlet pipe 52 is connected to the lower part of the connecting barrel 51, the ultraviolet water outlet pipe 53 is connected to the upper part of the connecting barrel 51, and the ultraviolet lamp 54 is arranged in the middle part of the connecting barrel 51. A drain pipe 55 is formed at the lower end of the connecting barrel 51. The water in the connecting barrel 51 enters from bottom to top, and the water flow path is longer, which prolongs the irradiation and disinfection time of the ultraviolet lamp 54 and improves the ultraviolet disinfection effect. The treated water body is then disinfected by ultraviolet rays to remove bacteria and viruses remaining in the water body, further improving the purification effect of the water body.

[0049] In this embodiment, a water collecting tank 12 is formed at the upper portion of the barrel body 1, and an outflow port 13 is provided on the inner side of the water collecting tank 12. The outflow port 13 is connected to the trioxygen microorganism module 4, and the ultraviolet module 5 is connected to the water collecting tank 12. The outflow port 13 is V-shaped. After the aquaculture water is treated in the aerobic zone 7 or the anaerobic zone facultative aerobic zone 6, it flows along the outflow port 13 into the water collecting tank 12, and flows along the water collecting tank 12 to the ultraviolet water inlet pipe 52.

[0050] Embodiment 2

[0051] like Fig.10 , Fig.11 and Fig.12 As shown, in this embodiment, except that the trioxygen microorganism module 4 is different from that in the first embodiment, the other technical features are the same as those in the first embodiment.

[0052] In this embodiment, the water diversion tank 311 is provided with a water flow outlet, the trioxygen microorganism module 4 includes a plurality of hydrophobic plates 41b, a intercepting plate 42b, an oxygenation aeration member 43b and a plurality of fiber filter groups 44b, each of the hydrophobic plates 41b is arranged between the barrel body 1 and the mechanical filtration module 3, the intercepting plate 42b is fixedly connected to the mechanical filtration module 3, the intercepting plate 42b is arranged below the water flow outlet, the oxygenation aeration member 43b is arranged along the bottom of the barrel body 1, one end of each of the fiber filter groups 44b is fixedly connected to the bottom of the barrel body 1, and the other end of each of the fiber filter groups 44b is fixedly connected to the upper part of the barrel body 1, and a dredging member 45b is arranged at the bottom of the barrel body 1, and each hydrophobic plate 41b is provided with a plurality of hydrophobic holes for water flow to pass through, the retention plate 42b is a plate without holes, and the upper end of the retention plate 42b An outlet for water supply to flow out to the water collection tank 12 is formed, and an oxygen-enhancing aeration member 43b arranged along the bottom of the barrel body 1 is connected to the outside to connect to an external tri-oxygen generator and an air pump, and air is mixed and then enters, so that the area near the outer wall of the barrel body 1 is enriched with oxygen to form an aerobic zone 7, and the area near the outer wall of the mechanical filtration module 3 lacks oxygen to form an anaerobic zone and a facultative aerobic zone 6, and the area between the aerobic zone 7 and the anaerobic zone and the facultative aerobic zone 6 is a facultative anaerobic zone and a facultative aerobic zone, and the water body enters the barrel body 1 along the water flow hole, and is pushed through the hydrophobic plate 41b one by one under the action of the gravity drop to form a unidirectional flow of water, and a number of fiber filter groups 44b arranged between the barrel body 1 and the filter assembly 3 have the effect of intercepting the water flow and reducing the flow rate, and at the same time, the area near the outer wall of the barrel body 1 forms an aerobic zone 7, and the area near the outer wall of the filter assembly 3 forms an anaerobic zone and a facultative aerobic zone, so that aerobic bacteria and anaerobic bacteria fully react with the water body;

[0053] The aeration pipe of the present embodiment is arranged along the outer wall of the barrel body 1. The bubbles generated by aeration drive the water body to move upward. Since a negative pressure space is formed under the aeration pipe during the upward movement of the water flow, the negative pressure space is easy to absorb and accumulate pollutants. The aeration pipe structure arranged along the outer wall is not easy to accumulate. After some pollutants accumulate, they flow into the pollutant discharge port below along the bottom inclined surface of the barrel body 1. The simple structure reduces the frequency of cleaning the bottom pollutants.

[0054] In this embodiment, the fiber filter group 44b includes a first connecting plate, a second connecting plate and a plurality of filter fibers 46b. The first connecting plate is detachably mounted on the top of the barrel body 1, and the second connecting plate is detachably mounted on the bottom of the barrel body 1. Each of the filter fibers 46b is arranged between the first connecting plate and the second connecting plate. The filter fibers 46b are fiber bundles. The porous structure formed by the filter fibers 46b can effectively block the water flow and reduce the water flow velocity, so that the aerobic bacteria and anaerobic bacteria attached to the filter fibers 46b can fully undergo nitrification and denitrification reactions with the water body to achieve the effect of denitrification and phosphorus removal and purification of the water body.

[0055] A method for using a denitrification and dephosphorization filter having a trioxygen microecological environment, the method comprising the following steps:

[0056] S1, the trioxygen microorganism module 4, the mechanical filtration module 3 and the ultraviolet module 5 are connected and installed in the barrel body 1, aerobic bacteria are placed in the aerobic zone 7, anaerobic bacteria are placed in the anaerobic zone and facultative aerobic zone 6, and facultative aerobic bacteria are placed in the first filtration group 33;

[0057] S2, adding tail water from the water inlet 2, the vortex inlet pipe 321 makes the tail water form a first vortex in the filter barrel 31, impurities are deposited at the bottom of the filter barrel 31, the tail water flows in along the first water inlet cone plate 322 and flows out from the vortex elbow 324 to form a second vortex, the second vortex deposits impurities in the tail water for a second time, and flows to the bottom of the filter barrel 31 along the vortex cleaning pipe 325, the first filter group 33 filters and preliminarily decomposes the aquaculture water and aquaculture tail water through facultative anaerobic bacteria;

[0058] S3, the tail water flows from the water diversion port 312 into the water diversion tank 311, and enters the aerobic zone 7 and the anaerobic zone facultative aerobic zone 6 along the connecting tank 36, and the tail water gradually fills the aerobic zone 7 and the anaerobic zone facultative aerobic zone 6 from bottom to top, and the aerobic bacteria and the anaerobic bacteria decompose the aquaculture water and the aquaculture tail water respectively;

[0059] S4, the tail water treated by the aerobic zone 7 and the anaerobic and facultative aerobic zone 6 is collected into the water collecting tank 12 along the outflow port 13, and flows into the connecting barrel 51 through the ultraviolet water inlet pipe 52, the aquaculture water and aquaculture tail water enter from the bottom of the connecting barrel 51, and flow out from the top of the connecting barrel 51, and the ultraviolet lamp 54 performs ultraviolet sterilization on the aquaculture water and aquaculture tail water;

[0060] S5. The pollutants accumulated at the bottom of the filter barrel 31 are cleaned and discharged regularly through the sewage pipe 34.

[0061] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A denitrification and phosphorus removal filter with a trioxygen microecological environment, characterized in that: include A barrel body (1), wherein the barrel body (1) is provided with a water inlet (2); A mechanical filtration module (3) is arranged on the barrel body (1) and connected to the water inlet (2), and is used for industrialized circulating aquaculture and aquaculture tail water treatment; The trioxygen microorganism module (4) is arranged between the mechanical filtration module (3) and the barrel (1), and is in communication with the mechanical filtration module (3). The trioxygen microorganism module (4) forms an anaerobic zone, a facultative oxic zone (6), and an aerobic zone (7), and fully undergoes nitrification and denitrification reactions for circulating aquaculture and denitrification and phosphorus removal of tail water; The ultraviolet module (5) is arranged on the outside of the barrel (1) and is used to sterilize and disinfect aquaculture water or aquaculture tail water.

2. A denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 1, characterized in that: The mechanical filtration module (3) comprises a filter barrel (31), a cyclone filter assembly (32), a first filter group (33) and a sewage pipe (34); the filter barrel (31) is arranged in the middle of the barrel body (1) and connected to the water inlet (2); the cyclone filter assembly (32) is arranged in the middle of the filter barrel (31) and located above the water inlet (2); the filter barrel (31) is formed with a first cushion block (35) and a connecting groove (36); the first cushion block (35) is arranged on the inner wall of the filter barrel (31) and located above the cyclone filter assembly (32); the first filter group (33) is connected to the first cushion block (35); the connecting groove (36) is arranged outside the filter barrel (31) and connected to the trioxygen microorganism module (4); the sewage pipe (34) is arranged at the bottom of the filter barrel (31); and the sewage pipe (34) is connected to an external pipeline.

3. A denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 2, characterized in that: The cyclone filter assembly (32) comprises a cyclone inflow pipe (321), a first water inlet cone plate (322), a cyclone cone plate (323) and a cyclone elbow (324); the cyclone inflow pipe (321) is connected to the water inlet (2); the first water inlet cone plate (322) is arranged in the middle of the filter barrel (31) and above the cyclone inflow pipe (321); the cyclone cone plate (323) is arranged above the first water inlet cone plate (322); the cyclone cone plate (323) is formed with a cyclone cleaning pipe (325); the cyclone cleaning pipe (325) passes through the bottom of the first water inlet cone plate (322); and the cyclone elbow (324) is arranged on the cyclone cone plate (323).

4. A denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 2, characterized in that: The filter barrel (31) is provided with a water diversion groove (311) and a water diversion port (312); the water diversion groove (311) is arranged along the circumference of the upper part of the filter barrel (31); the water diversion ports (312) are arranged at equal intervals on the upper edge of the filter barrel (31); and the connecting groove (36) is connected to the water diversion groove (311).

5. The denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 1, characterized in that: The ultraviolet module (5) comprises a connecting barrel (51), an ultraviolet water inlet pipe (52), an ultraviolet water outlet pipe (53) and an ultraviolet lamp (54); the connecting barrel (51) is arranged on the outside of the barrel body (1); one end of the ultraviolet water inlet pipe (52) is connected to the barrel body (1); the other end of the ultraviolet water inlet pipe (52) is connected to the lower part of the connecting barrel (51); the ultraviolet water outlet pipe (53) is connected to the upper part of the connecting barrel (51); the ultraviolet lamp (54) is arranged in the middle part of the connecting barrel (51); and a water outlet pipe (55) is formed at the lower end of the connecting barrel (51).

6. The denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 1, characterized in that: The trioxygen microorganism module (4) comprises a partition (41a), a trioxygen aeration element (42a), a second filter group (43a) and a sewage discharge assembly (44a); the partition (41a) is arranged between the barrel body (1) and the mechanical filtration module (3), and is used to separate the anaerobic zone, the facultative aerobic zone (6) and the aerobic zone (7); the trioxygen aeration element (42a) is arranged on the outside of the barrel body (1) and is connected to the aerobic zone (7); the barrel body (1) is formed with a second cushion block (11); the second filter group (43a) is connected to the second cushion block (11); the sewage discharge assembly (44a) is arranged at the bottom of the barrel body (1) and is connected to the aerobic zone (7) and the anaerobic zone and facultative aerobic zone (6).

7. A denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 6, characterized in that: The sewage discharge assembly (44a) comprises a sewage collecting plate (441a), an outflow pipe (442a) and a regulating valve (443a); the sewage collecting plate (441a) is arranged at the lower part of the barrel body (1) and is connected to the anaerobic zone, the facultative aerobic zone (6) and the aerobic zone (7); the sewage collecting plate (441a) is formed with a sewage discharge port (444a); the outflow pipe (442a) is in communication with the sewage discharge port (444a); the first end of the regulating valve (443a) is in communication with the outflow pipe (442a); and the second end of the regulating valve (443a) is in communication with an external pipeline.

8. The denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 4, characterized in that: The water diversion tank (311) is provided with a water flow outlet. The trioxygen microorganism module (4) comprises a plurality of hydrophobic plates (41b), a flow intercepting plate (42b), an oxygenation aeration element (43b) and a plurality of fiber filter groups (44b). Each of the hydrophobic plates (41b) is arranged between the barrel body (1) and the mechanical filter module (3). The flow intercepting plate (42b) is fixedly connected to the mechanical filter module (3). The flow intercepting plate (42b) is arranged below the water flow outlet. The oxygenation aeration element (43b) is arranged along the bottom of the barrel body (1). One end of each of the fiber filter groups (44b) is fixedly connected to the bottom of the barrel body (1), and the other end of each of the fiber filter groups (44b) is fixedly connected to the upper part of the barrel body (1). A dredging element (45b) is arranged at the bottom of the barrel body (1).

9. A denitrification and phosphorus removal filter with a trioxygen microecological environment according to claim 8, characterized in that: The fiber filter group (44b) comprises a first connecting plate, a second connecting plate and a plurality of filter fibers (46b), wherein the first connecting plate is detachably mounted on the top of the barrel body (1), and the second connecting plate is detachably mounted on the bottom of the barrel body (1), and each of the filter fibers (46b) is arranged between the first connecting plate and the second connecting plate.

10. A method for using the denitrification and phosphorus removal filter having a trioxygen microecological environment according to claims 1 to 5, characterized in that: The method comprises the following steps: S1, the trioxygen microorganism module (4), the mechanical filtration module (3) and the ultraviolet module (5) are connected and installed in the barrel (1), aerobic bacteria are placed in the aerobic zone (7), anaerobic bacteria are placed in the anaerobic zone and facultative aerobic zone (6), and facultative aerobic bacteria are placed in the first filtration group (33); S2, adding tail water from the water inlet (2), the vortex inflow pipe (321) causes the tail water to form a first vortex in the filter barrel (31), impurities are deposited at the bottom of the filter barrel (31), the tail water flows in along the first water inlet cone plate (322) and flows out from the vortex elbow (324), forming a second vortex, the second vortex deposits particulate matter and suspended matter in the tail water, and flows along the vortex cleaning pipe (325) to the bottom of the filter barrel (31), the first filter group (33) filters and preliminarily decomposes the aquaculture water and the aquaculture tail water through facultative anaerobic bacteria; S3, the tail water flows from the water diversion port (312) into the water diversion tank (311), and enters the aerobic zone (7) and the anaerobic zone / facultative aerobic zone (6) along the connecting tank (36), the tail water gradually fills the aerobic zone (7) and the anaerobic zone / facultative aerobic zone (6) from bottom to top, and the aerobic bacteria and the anaerobic bacteria decompose the aquaculture water and the aquaculture tail water respectively; S4, the tail water treated in the aerobic zone (7) and the anaerobic and facultative aerobic zone (6) is collected into the water collecting tank (12) along the outflow port (13), and flows into the connecting barrel (51) through the ultraviolet water inlet pipe (52), the aquaculture water and aquaculture tail water enter from the bottom of the connecting barrel (51), and flow out from the top of the connecting barrel (51), and the ultraviolet lamp (54) performs ultraviolet sterilization on the aquaculture water and aquaculture tail water; S5. The pollutants accumulated at the bottom of the filter barrel (31) are cleaned and discharged regularly through the sewage pipe (34).

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