Nitrogen and phosphorus removal filter with ozone micro-ecological environment

Abstract

The utility model aims to provide the nitrogen and phosphorus removal filter with the ozone micro-ecological environment, which is used for removing nitrogen and phosphorus through microorganisms and treating sewage through ultraviolet sterilization. A water inlet is formed in the barrel body, and a water outlet is formed in the barrel body. The mechanical filtering module is arranged on the barrel body, is connected with the water inlet and is used for filtering and primarily treating the sewage; 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 utility model is applied to the technical field of nitrogen and phosphorus removal filters.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of denitrification and dephosphorization filter, especially to a denitrification and dephosphorization filter with three oxygen microecological environment. BACKGROUND

[0002] At present, the high-speed development of aquaculture has solved the problem of food to some extent, and met the demand of people for aquatic products, and solved the problem of relatively short natural fishery resources. However, the high-speed development of aquaculture has brought serious pollution to the marine ecological environment, become the bottleneck that the aquaculture industry of our country is difficult to break through, and seriously restricts the sustainable development of the aquaculture industry of our country. In seawater fish culture, the metabolic product is 20% to 35% of the amount of feeding, and the residual bait is 10 to 40% of the amount of feeding, which is directly discharged into the water, thereby reducing the dissolved oxygen in the water, increasing the ammonia nitrogen, nitrite nitrogen and nitrate nitrogen, and leading to water eutrophication or water quality deterioration.

[0003] In view of the problem, the common method at present is to continuously discharge the sewage at the bottom of the pool for treatment, and continuously supplement new water, which will lead to continuous growth of water consumption, high breeding cost, and pollution to the environment if the sewage is directly discharged without treatment. On the other hand, due to the inconsistency of water temperature and water quality of the supplemented new water with the original pool, fish will produce stress reaction and affect growth and development, and even lead to death, so a denitrification and dephosphorization filter capable of reducing the supplement of new water and recycling and disinfecting the breeding sewage is needed. INVENTION CONTENTS

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, and provide a denitrification and dephosphorization filter with three oxygen microecological environment, which can remove nitrogen and phosphorus by microorganisms, and has ozone disinfection and ultraviolet disinfection and sterilization functions.

[0005] The technical scheme adopted by the utility model is: the present application comprises a barrel body, the barrel body is provided with a water inlet; a mechanical filtration module is arranged in the barrel body and connected with the water inlet, and is used for industrialized recirculating aquaculture and breeding tail water treatment; a three oxygen microorganism module is arranged between the mechanical filtration module and the barrel body, and is communicated with the mechanical filtration module, the three oxygen microorganism module is formed with anaerobic zone, facultative oxygen zone and aerobic zone, and is used for recirculating aquaculture and breeding tail water denitrification and dephosphorization treatment; an ultraviolet module is arranged on the outside of the barrel body, and is used for sterilizing and disinfecting breeding water or breeding tail water.

[0006] Further, the mechanical filtration module comprises a filter barrel, a cyclone filtration assembly, a first filter group and a sewage pipe, the filter barrel is arranged in the middle of the barrel body and connected with the water inlet, the cyclone filtration assembly is arranged in the middle of the filter barrel and above the water inlet, the filter barrel is formed with a first cushion block and a connecting groove, the first cushion block is arranged on the inner wall of the filter barrel and above the cyclone filtration assembly, the first filter group is connected with the first cushion block, the connecting groove is arranged outside the filter barrel and connected with the three-oxygen microorganism module, and the sewage pipe is arranged at the bottom of the filter barrel and communicated with an external pipeline.

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

[0008] Further, the filter barrel is provided with a water distribution groove and a water distribution port, the water distribution groove is arranged along the upper portion of the filter barrel in a circumferential direction, and the water distribution ports are arranged at the upper edge of the filter barrel at equal intervals, and the connecting groove is communicated with the water distribution groove.

[0009] Further, the ultraviolet module comprises a connecting barrel, an ultraviolet water inlet pipe, an ultraviolet water outlet pipe and an ultraviolet lamp tube, the connecting barrel is arranged outside the barrel body, one end of the ultraviolet water inlet pipe is communicated with the barrel body, the other end of the ultraviolet water inlet pipe is communicated with the lower portion of the connecting barrel, the ultraviolet water outlet pipe is communicated with the upper portion of the connecting barrel, the ultraviolet lamp tube is arranged in the middle of the connecting barrel, and the lower end of the connecting barrel is formed with a drain pipe.

[0010] Further, the three-oxygen microorganism module comprises a partition plate, a three-oxygen aeration member, a second filter group and a sewage assembly, the partition plate is arranged between the barrel body and the mechanical filtration module and separates the anaerobic zone, the facultative oxygen zone and the aerobic zone, the three-oxygen aeration member is arranged outside the barrel body and connected with the aerobic zone, the barrel body is formed with a second cushion block, the second filter group is connected with the second cushion block, and the sewage assembly is arranged at the bottom of the barrel body and communicated with the aerobic zone and the anaerobic zone.

[0011] Further, the pollution discharge assembly comprises a collecting plate, an outflow pipe and a regulating valve, the collecting plate is arranged at the lower part of the barrel body and is connected with the anaerobic area, the facultative oxygen area and the aerobic area, the collecting plate is formed with a pollution discharge opening, the outflow pipe is communicated with the pollution discharge opening, the first end of the regulating valve is communicated with the outflow pipe, and the second end of the regulating valve is communicated with an external pipeline.

[0012] Further, the water distribution groove is provided with a water inflow opening, the three-oxygen microbial module comprises a plurality of hydrophobic plates, a flow interception plate, an oxygen increasing aeration member and a plurality of fiber filter groups, each of the hydrophobic plates is arranged between the barrel body and the mechanical filtration module, the flow interception plate is fixedly connected with the mechanical filtration module, the flow interception plate is arranged below the water inflow opening, the oxygen increasing aeration member is arranged along the bottom of the barrel body, one end of each of the fiber filter groups is fixedly connected with the bottom of the barrel body, and the other end of each of the fiber filter groups is fixedly connected with the upper part of the barrel body, and the bottom of the barrel body is provided with a dredging member.

[0013] Further, the fiber filter group comprises a first connecting plate, a second connecting plate and a plurality of filter fibers, the first connecting plate is detachably mounted at the top of the barrel body, the second connecting plate is detachably mounted at 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] The beneficial effects of the utility model are that: because the cyclone inlet pipe of the mechanical filtration module is adopted in the utility model, the secondary cyclone precipitation of the incoming tail water is realized, the suspended particles are separated outward by the centrifugal force in the process of tail water rotation and the gravity precipitation, and finally deposited at the bottom of the pool, the deposited silt is concentrated at the bottom of the pool, and the silt is removed in the process of periodic cleaning, so that the purpose of tail water purification is achieved, and the grating of the first filter group, the first fiber ball and the facultative bacteria in the first fiber ball are matched to filter and decompose the tail water for pretreatment.

[0015] The three-oxygen microbial module forms the anaerobic area, the facultative oxygen area and the aerobic area between the mechanical filtration module and the barrel body through the equidistantly arranged partition plates, the aerobic area is connected with the aeration pipe, the aeration pipe is connected with the external three-oxygen generator and the air pump, the air is mixed and input into the aerobic area to oxidize the inorganic matter and the organic matter in the water, the aerobic bacteria in the aerobic area decompose the organic small molecule matter into inorganic matter, the anaerobic bacteria in the anaerobic area and the facultative oxygen area decompose the organic large molecule matter in the tail water into the organic small molecule matter, the ultraviolet module performs ultraviolet disinfection on the tail water treated in the aerobic area and the anaerobic area, further kills the bacteria and reduces the possibility of breeding diseases, and improves the breeding success rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model;

[0017] Figure 2 is another perspective view of the structural schematic diagram of the utility model;

[0018] Figure 3 is a sectional view of the utility model;

[0019] Figure 4 is Figure 3 the local enlarged view of A part in it;

[0020] Figure 5 is Figure 3 the local enlarged view of B part in it;

[0021] Figure 6 is the structural schematic diagram of the cyclone filter assembly of the utility model;

[0022] Figure 7 is the sectional view of the cyclone filter assembly of the utility model;

[0023] Figure 8 is the structural schematic diagram of the pollution discharge assembly of the utility model;

[0024] Figure 9 is the explosion view of the ultraviolet module of the utility model;

[0025] Figure 10 is the sectional view of embodiment two;

[0026] Figure 11 is the plan view of the three oxygen microorganism module in embodiment two of the utility model;

[0027] Figure 12 is the plan view of the water flow direction in embodiment two of the utility model.

[0028] In the drawing: 1, barrel body; 11, second cushion block; 12, water collecting tank; 13, flow outlet; 2, water inlet; 3, mechanical filtration module; 31, filtration barrel; 311, water distribution tank; 312, water distribution outlet; 32, cyclone filtration assembly; 321, cyclone water inlet pipe; 322, first water inlet cone plate; 323, cyclone cone plate; 324, cyclone elbow; 33, first filtration group; 34, pollution discharge pipe; 35, first cushion block; 36, connecting groove; 4, three oxygen microorganism module; 41a, partition; 42a, three oxygen aeration member; 43a, second filtration group; 44a, pollution discharge assembly; 441a, pollution collecting plate; 442a, flow-out pipe; 443a, regulating valve; 5, ultraviolet module; 51, connecting barrel; 52, ultraviolet water inlet pipe; 53, ultraviolet water outlet pipe; 54, ultraviolet lamp; 55, drain pipe; 6, anaerobic zone and facultative oxygen zone; 7, aerobic zone; 41b, hydrophobic plate; 42b, intercepting plate; 43b, oxygenation aeration member; 44b, fiber filtration group; 45b, dredging member; 46b, filtration fiber. DETAILED DESCRIPTION

[0029] Embodiment one

[0030] As Figures 1 to 9 shown, in this embodiment, the present application comprises a barrel 1, which is provided with a water inlet 2; a mechanical filtration module 3, which is arranged in the barrel 1 and connected with the water inlet 2, for factory-scale recirculating aquaculture and aquaculture tail water treatment; a tri-oxygen microbial module 4, which is arranged between the mechanical filtration module 3 and the barrel 1 and communicates with the mechanical filtration module 3, the tri-oxygen microbial module 4 forms an anaerobic zone and facultative oxygen zone 6 and an aerobic zone 7, for recirculating aquaculture and tail water denitrification and phosphorus removal treatment; an ultraviolet module 5, which is arranged outside the barrel 1, for sterilizing and disinfecting the aquaculture water or the aquaculture tail water, the barrel 1 is in the shape of a cylinder as a whole, which can accommodate more tail water, the cyclone inlet pipe 321 of the mechanical filtration module 3 is designed to spin and deposit the incoming tail water, through the centrifugal force and gravity sedimentation in the tail water rotation process, the suspended particulate matter is separated outward under the action of centrifugal force, and finally deposited at the bottom of the pool, the deposited silt is concentrated at the bottom of the pool, which is removed in the process of periodic cleaning, so as to achieve the purpose of tail water purification, in combination with the grid and the first fiber ball of the first filtration group 33 and the facultative bacteria in the first fiber ball, the tail water is pretreated by filtration and decomposition, the tri-oxygen microbial module 4 forms the anaerobic zone and facultative oxygen zone 6 and the aerobic zone 7 between the mechanical filtration module 3 and the barrel 1 through the equally spaced partition plates 41a, the aerobic zone 7 is partially connected with the tri-oxygen aerator 42a, the tri-oxygen aerator 42a is connected with an external tri-oxygen generator and an air pump, the air is mixed and then input into the aerobic zone 7, to oxidize the inorganic and organic matters in the water, the aerobic bacteria in the second fiber ball in the upper part decompose the organic small molecular substances into inorganic substances, the anaerobic zone and facultative oxygen zone 6 decomposes the organic large molecular substances in the tail water into organic small molecular substances through the anaerobic bacteria in the second fiber ball, the ultraviolet module 5 performs ultraviolet disinfection on the tail water treated in the aerobic zone and the anaerobic zone and facultative oxygen zone 6, to further kill bacteria and reduce the possibility of aquaculture diseases, thereby improving the success rate of aquaculture.

[0031] In the embodiment, the mechanical filtration module 3 comprises a filtration barrel 31, a cyclone filtration assembly 32, a first filtration group 33, and a sewage pipe 34. The filtration barrel 31 is arranged in the middle of the barrel body 1 and is connected with the water inlet 2. The cyclone filtration assembly 32 is arranged in the middle of the filtration barrel 31 and is located above the water inlet 2. The filtration barrel 31 is formed with a first pad 35 and a connecting groove 36. The first pad 35 is arranged on the inner wall of the filtration barrel 31 and is located above the cyclone filtration assembly 32. The first filtration group 33 is connected with the first pad 35. The connecting groove 36 is arranged on the outer wall of the filtration barrel 31 and is connected with the three-oxygen microorganism module 4. The sewage pipe 34 is arranged at the bottom of the filtration barrel 31 and is in communication with an external pipeline. One or more groups of the first pad 35 are arranged on the inner wall of the filtration barrel 31 to support and limit the first grid. One or more groups of the connecting groove 36 are arranged on the outer wall of the filtration barrel 31 at equal intervals. One end of the connecting groove 36 is in communication with the water distribution groove 311, and the other end of the connecting groove 36 is arranged to be open at the lower part of the aerobic zone 7 or the anaerobic zone 6. The tail water flows from the bottom to the top in the aerobic zone 7 or the anaerobic zone 6, thereby increasing the water flow path and slowing down the water flow speed, and making the nitrification and denitrification processes more sufficient.

[0032] The cyclone filtration assembly 32 is subjected to centrifugal force and gravity sedimentation during the rotation of the tail water. The suspended particulate matters are separated outwardly under the action of the centrifugal force and are finally deposited at the bottom of the pool. The deposited sludge is concentrated at the bottom of the pool and is removed in the process of periodic cleaning, thereby achieving the purpose of tail water purification. The lower part of the filtration barrel 31 is formed with a tapered sludge collecting groove with a gradually decreasing diameter from top to bottom. The sewage pipe 34 is arranged at the bottom of the sludge collecting groove and is connected with an external timed sludge pumping mechanism. The sludge accumulated in the tapered sludge collecting groove is pumped out at a regular time, thereby reducing the accumulation of waste slag in the sewage pipe 34, ensuring the sewage effect and water treatment effect, and the first filtration group 33 comprises a first grid and a first fiber ball. The first fiber ball is formed with a dense porous structure and contains facultative bacteria. The facultative bacteria preliminarily decompose and treat the tail water. The first fiber ball can also slow down the water flow speed in the filtration barrel 31, so that the tail water is fully contacted with the facultative bacteria.

[0033] In the embodiment, the cyclone filter assembly 32 comprises a cyclone inlet pipe 321 connected with the water inlet 2, a first water inlet cone plate 322 arranged at the middle part of the filter barrel 31 and above the cyclone inlet pipe 321, a cyclone cone plate 323 arranged above the first water inlet cone plate 322, and a cyclone elbow 324 arranged on the cyclone cone plate 323. The cyclone inlet pipe 321 is in the form of an elbow pipe, is installed at the water inlet end of the water inlet 2 and is inclined downward by 10-15 degrees. The bottom of the first water inlet cone plate 322 is formed with a plurality of water inlet holes. The tail water forming the cyclone enters the space between the first water inlet cone plate 322 and the cyclone cone plate 323 through the water inlet holes. The cyclone elbow 324 is provided with one or more groups. The multiple groups of cyclone elbows 324 are connected on the cyclone cone plate 323 in an anticlockwise direction at equal intervals and are in communication with the space between the first water inlet cone plate 322 and the cyclone cone plate 323. The cyclone tail water flows out of the cyclone elbow 324 from bottom to top. The outflowing tail water moves along the direction of the cyclone elbow 324 and forms a cyclone. The cyclone above the cyclone cone plate 323 performs secondary cyclone deposition of the suspended matter in the tail water. The deposited suspended matter flows out to the bottom of the conical sludge collecting tank through the cyclone cleaning pipe 325. The double-cone structure design cooperates with the inclined cyclone inlet pipe 321 to make the entering tail water form a cyclone in the filter barrel 31. The suspended matter mixed in the tail water is subjected to centrifugal separation. The suspended matter flows to the center of the filter barrel 31 under the action of the cyclone and is deposited at the bottom of the tank. The particulate matter and the suspended matter mixed in the tail water are discharged at a regular time in cooperation with the discharge pipe, thereby improving the filtration efficiency and the water treatment effect of the subsequent tail water treatment.

[0034] In the embodiment, the filter barrel 31 is provided with a water distribution groove 311 and a water distribution port 312. The water distribution groove 311 is arranged along the upper part of the filter barrel 31 in a circumferential direction. The water distribution port 312 is arranged at the upper edge of the filter barrel 31 at equal intervals. The connecting groove 36 is in communication with the water distribution groove 311. The water distribution port 312 is in the form of a V-shaped structure and is arranged at the upper edge of the filter barrel 31 at equal intervals. The tail water accumulates from bottom to top and overflows into the water distribution groove 311 through the water distribution port 312. The lower part of the water distribution groove 311 is in communication with each group of connecting grooves 36. The tail water enters the aerobic zone 7 and the anaerobic zone and facultative oxygen zone 6 through the connecting grooves 36.

[0035] In the embodiment, the tri-oxygen microbial module 4 comprises a partition plate 41a, a tri-oxygen aerator 42a, a second filter group 43a, and a sewage discharge assembly 44a. The partition plate 41a is arranged between the barrel 1 and the mechanical filter module 3, and separates the anaerobic and facultative oxygen zone 6 and the aerobic zone 7. The tri-oxygen aerator 42a is arranged outside the barrel 1 and connected to the aerobic zone 7. The barrel 1 is formed with a second pad 11. The second filter group 43a is connected to the second pad 11. The sewage discharge assembly 44a is arranged at the bottom of the barrel 1 and connected to the aerobic zone 7 and the anaerobic and facultative oxygen zone 6. The partition plate 41a is arranged in one or more groups. The partition plates 41a arranged in multiple groups are connected to the inner wall of the filter barrel 31 and the barrel 1 at equal intervals. The two partition plates 41a form a separate reaction zone, so that the device can simultaneously perform nitrification and denitrification reactions, reduce the ammonia nitrogen content in the water during water circulation, and improve the treatment efficiency and effect of harmful substances in wastewater. The treated water has little harmful substance residue and can be reused for water circulation, saving water resources. The tri-oxygen aerator 42a is connected to an external tri-oxygen generator and an air pump. The mixed air is pumped into the aerobic zone 7 to form dense bubbles, oxidizing inorganic and organic substances in the water. The second pad 11 is arranged in one or more groups. The second pads 11 arranged in multiple groups are arranged at equal intervals along the inner wall of the barrel 1 and are used to limit and fix the second grid. The second pad 11 gradually increases from top to bottom.

[0036] In the embodiment, the sewage discharge assembly 44a comprises a sewage collection plate 441a, an outflow pipe 442a, and a regulating valve 443a. The sewage collection plate 441a is arranged at the lower part of the barrel 1 and connected to the anaerobic and facultative oxygen zone 6 and the aerobic zone 7. The sewage collection plate 441a is formed with a sewage discharge port 444a. The outflow pipe 442a is connected to the sewage discharge port 444a. The first end of the regulating valve 443a is connected to the outflow pipe 442a. The second end of the regulating valve 443a is connected to an external pipeline. The sewage collection plate 441a is connected to the partition plate 41a and cooperates with the cavity formed by the filter barrel 31 and the barrel 1. The sewage collection plate 441a is used to collect the sludge and dirt deposited in the cavity. The regulating valve 443a is opened at regular intervals to discharge the sludge and dirt accumulated on the sewage collection plate 441a, improving the filtration efficiency and water treatment effect of subsequent tail water treatment.

[0037] In the embodiment, the second filter group 43a comprises a second grid and a second fiber ball, the second grid is supported by the second pad 11, the second fiber ball floats below the second grid, the second fiber ball on the side of the aerobic zone 7 is provided with aerobic bacteria, the second fiber ball on the side of the anaerobic zone 6 is provided with anaerobic bacteria, the second fiber ball has a dense porous structure, and the second fiber ball can also slow down the water flow speed, so that the aquaculture tail water fully contacts and reacts with the aerobic bacteria or the anaerobic bacteria, and the treatment efficiency and treatment effect of harmful substances in the wastewater are improved.

[0038] In the aerobic zone 7 of the first embodiment, 80% of the outer layer of the second fiber ball produces aerobic bacteria for reaction with the aquaculture tail water, and 20% of the inner layer of the second fiber ball produces facultative bacteria, the aerobic bacteria and the facultative bacteria in the second fiber ball in the aerobic zone can be naturally produced by the tail water treatment environment or put in advance by the staff.

[0039] In the mechanical filter assembly of the first embodiment, 80% of the outer layer of the first fiber ball produces facultative bacteria for reaction with the aquaculture tail water, and 20% of the inner layer of the second fiber ball produces anaerobic bacteria, the facultative bacteria in the first fiber ball can be naturally produced by the tail water treatment environment or put in advance by the staff.

[0040] In the anaerobic zone facultative oxygen zone of the first embodiment, the second fiber ball produces anaerobic bacteria, and the anaerobic bacteria in the anaerobic zone can be naturally produced by the tail water treatment environment or put in advance by the staff.

[0041] In the embodiment, 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 outside the barrel body 1, one end of the ultraviolet water inlet pipe 52 is communicated with the barrel body 1, the other end of the ultraviolet water inlet pipe 52 is communicated with the lower part of the connecting barrel 51, the ultraviolet water outlet pipe 53 is communicated with the upper part of the connecting barrel 51, the ultraviolet lamp 54 is arranged in the middle part of the connecting barrel 51, and the lower end of the connecting barrel 51 is formed with a drain pipe 55, the water flow enters from bottom to top in the connecting barrel 51, the water flow path is long, the ultraviolet lamp 54 irradiation disinfection time is prolonged, the ultraviolet disinfection effect is improved, the treated water is disinfected by ultraviolet light again, bacteria and viruses remaining in the water body can be removed, and the purification effect of the water body is further improved.

[0042] In the embodiment, the upper part of the barrel 1 is formed with a water collecting groove 12, the inner side of the water collecting groove 12 is provided with a flow outlet 13, the flow outlet 13 communicates with the tri-oxygen microorganism module 4, the ultraviolet module 5 communicates with the water collecting groove 12, the flow outlet 13 is in a V-shaped form, after the aquaculture water is treated in the aerobic zone 7 or the anaerobic zone 6, the aquaculture water flows along the flow outlet 13 into the water collecting groove 12 and then flows along the water collecting groove 12 to the ultraviolet water inlet pipe 52.

[0043] Embodiment two

[0044] As shown in Figure 10 , Figure 11 and Figure 12 , in the embodiment, except that the tri-oxygen microorganism module 4 is different from that in embodiment one, the rest of the technical features are the same as those in embodiment one.

[0045] In the embodiment, the water distributing groove 311 is provided with a water flowing outlet, the tri-oxygen microorganism module 4 comprises a plurality of hydrophobic plates 41b, a flow interception plate 42b, an oxygen increasing aeration member 43b and a plurality of fiber filter groups 44b, each of the hydrophobic plates 41b is arranged between the barrel 1 and the mechanical filter module 3, the flow interception plate 42b is fixedly connected with the mechanical filter module 3, the flow interception plate 42b is arranged below the water flowing outlet, the oxygen increasing aeration member 43b is arranged along the bottom of the barrel 1, one end of each of the fiber filter groups 44b is fixedly connected with the bottom of the barrel 1, the other end of each of the fiber filter groups 44b is fixedly connected with the upper part of the barrel 1, the bottom of the barrel 1 is provided with a dredging member 45b, each of the hydrophobic plates 41b is provided with a plurality of hydrophobic holes through which water flows, the flow interception plate 42b is a plate without holes, the upper end of the flow interception plate 42b is formed with a water outlet through which water flows out to the water collecting groove 12, the oxygen increasing aeration member 43b arranged along the bottom of the barrel 1 is connected with the outside, and an external tri-oxygen generator and an air pump are connected with the outside, air is mixed and then enters to make the area close to the outer wall of the barrel 1 rich in oxygen to form the aerobic zone 7, the area close to the outer wall of the mechanical filter module 3 lacks oxygen to form the anaerobic zone 6, and the area between the aerobic zone 7 and the anaerobic zone 6 is the facultative anaerobic zone, water bodies enter into the barrel 1 along the water flowing holes, and the water bodies are pushed to pass through the hydrophobic plates 41b one by one under the action of the gravity difference to form unidirectional water flow, the fiber filter groups 44b arranged between the barrel 1 and the filter assembly 3 have the effect of intercepting water flow and reducing flow speed, at the same time, the area close to the outer wall of the barrel 1 forms the aerobic zone 7, and the area close to the outer wall of the filter assembly 3 forms the anaerobic zone, so that the aerobic bacteria and the anaerobic bacteria fully react with the water bodies.

[0046] The aeration pipe of the embodiment is arranged along the outer wall of the barrel body 1, and the bubbles generated by aeration drive the water body to move upward. Since a negative pressure space is formed below the aeration pipe during the upward movement of the water flow, the negative pressure space is easy to adsorb and accumulate pollutants. The aeration pipe arranged along the outer wall is not easy to accumulate, and part of the pollutants accumulated flow into the lower pollutant discharge port along the inclined surface of the bottom of the barrel body 1, so that the structure is simple and the cleaning frequency of the pollutants at the bottom is reduced.

[0047] In the embodiment, the fiber filter group 44b comprises a first connecting plate, a second connecting plate and a plurality of filter fibers 46b. The first connecting plate is detachably mounted at the top of the barrel body 1, and the second connecting plate is detachably mounted at the bottom of the barrel body 1. Each filter fiber 46b is arranged between the first connecting plate and the second connecting plate. The filter fiber 46b is a fiber bundle, and the porous structure formed by the filter fiber 46b can effectively block the water flow and reduce the water flow speed, so that the aerobic bacteria and anaerobic bacteria attached to the filter fiber 46b can fully undergo nitrification and denitrification reactions with the water body, thereby achieving the effect of water body denitrification and phosphorus removal purification.

[0048] Working principle of the utility model:

[0049] The three oxygen microbial modules 4, the mechanical filter modules 3 and the ultraviolet modules 5 are connected and mounted in the barrel body 1. The aerobic bacteria are put into the aerobic area 7, the anaerobic bacteria are put into the anaerobic area 6, and the facultative bacteria are put into the first filter group 33.

[0050] Tail water is added from the water inlet 2. The cyclone inlet pipe 321 makes the tail water form a first vortex in the filter barrel 31, and the impurities are deposited at the bottom of the filter barrel 31. The tail water flows into the filter barrel 31 from the first water cone plate 322 and flows out from the cyclone elbow 324, forming a second vortex. The second vortex secondarily deposits the impurities in the tail water, and the impurities flow to the bottom of the filter barrel 31 along the cyclone cleaning pipe 325. The first filter group 33 filters and preliminarily decomposes the aquaculture water and the aquaculture tail water through the facultative bacteria.

[0051] The tail water flows into the water distribution tank 311 from the water distribution outlet 312, and enters the aerobic area 7 and the anaerobic area 6 along the connecting groove 36. The tail water gradually fills the aerobic area 7 and the anaerobic area 6 from bottom to top, and the aerobic bacteria and the anaerobic bacteria decompose and treat the aquaculture water and the aquaculture tail water, respectively.

[0052] The tail water treated by the aerobic area 7 and the anaerobic area 6 is collected in the water collecting groove 12 along the outlet 13, and flows into the connecting barrel 51 through the ultraviolet inlet pipe 52. The aquaculture water and the aquaculture tail water enter from below the connecting barrel 51 and flow out from above the connecting barrel 51. The ultraviolet lamp 54 performs ultraviolet sterilization and disinfection on the aquaculture water and the aquaculture tail water.

[0053] Contaminants accumulated in the bottom of the filter barrel 31 are removed by periodic cleaning through the drain pipe 34.

[0054] Although the embodiments of the present application are described in actual schemes, but does not constitute a limitation on the meaning of the present application, for those skilled in the art, according to the modification of the embodiments of the present application and the combination with other schemes are obvious.

Claims

1. A denitrification and dephosphorization filter having a tri-oxygen micro-ecological environment, characterized in that: The application relates to a water treatment device for aquaculture and tail water treatment. The device comprises a barrel (1) provided with a water inlet (2); a mechanical filtration module (3) arranged in the barrel (1) and connected with the water inlet (2) for factory circulating water aquaculture and tail water treatment; a tri-oxygen microbial module (4) arranged between the mechanical filtration module (3) and the barrel (1) and communicated with the mechanical filtration module (3), the tri-oxygen microbial module (4) being formed with an anaerobic zone, a facultative oxygen zone (6) and an aerobic zone (7) for full nitrification and denitrification reaction for circulating water aquaculture and tail water nitrogen and phosphorus removal treatment; and an ultraviolet module (5) arranged outside the barrel (1) for sterilization and disinfection of aquaculture water or tail water. The mechanical filtration module (3) comprises a filtration barrel (31), a cyclone filtration assembly (32), a first filtration group (33) and a sewage pipe (34), the filtration barrel (31) is arranged in the middle of the barrel (1) and connected with the water inlet (2), the cyclone filtration assembly (32) is arranged in the middle of the filtration barrel (31) and located above the water inlet (2), the filtration barrel (31) is formed with a first pad (35) and a connecting groove (36), the first pad (35) is arranged on the inner wall of the filtration barrel (31) and located above the cyclone filtration assembly (32), the first filtration group (33) is connected with the first pad (35), the connecting groove (36) is arranged outside the filtration barrel (31) and connected with the tri-oxygen microbial module (4), and the sewage pipe (34) is arranged at the bottom of the filtration barrel (31) and communicated with an external pipeline. The cyclone filtration assembly (32) comprises a cyclone water inlet pipe (321), a first water inlet cone plate (322), a cyclone cone plate (323) and a cyclone elbow (324), the cyclone water inlet pipe (321) is connected with the water inlet (2), the first water inlet cone plate (322) is arranged in the middle of the filtration barrel (31) and located above the cyclone water 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 a cyclone sewage pipe (325) penetrating through the bottom of the first water inlet cone plate (322), and the cyclone elbow (324) is arranged on the cyclone cone plate (323). The filtration barrel (31) is provided with a water distribution groove (311) and a water distribution opening (312), the water distribution groove (311) is arranged along the upper portion of the filtration barrel (31) in a circumferential direction, the water distribution openings (312) are equidistantly arranged along the upper edge of the filtration barrel (31), and the connecting groove (36) is communicated with the water distribution groove (311).

2. The denitrification and dephosphorization filter with a three-oxygen micro-ecological environment according to claim 1, characterized in that: ​ 3. The denitrification and dephosphorization filter with a three-oxygen micro-ecological environment according to claim 2, characterized in that: ​ 4. The denitrification and dephosphorization filter with a three-oxygen micro-ecological environment according to claim 2, characterized in that: ​ 5. The denitrification and dephosphorization filter with a three-oxygen micro-ecological 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 outside the barrel body (1), one end of the ultraviolet water inlet pipe (52) is communicated with the barrel body (1), the other end of the ultraviolet water inlet pipe (52) is communicated with the lower part of the connecting barrel (51), the ultraviolet water outlet pipe (53) is communicated with the upper part of the connecting barrel (51), the ultraviolet lamp (54) is arranged in the middle part of the connecting barrel (51), and the lower end of the connecting barrel (51) is formed with a drain pipe (55).

6. The denitrification and dephosphorization filter with a three-oxygen micro-ecological environment according to claim 1, characterized in that: The tri-oxygen microbial module (4) comprises a partition plate (41a), a tri-oxygen aeration member (42a), a second filter group (43a) and a sewage discharge assembly (44a), the partition plate (41a) is arranged between the barrel body (1) and the mechanical filtration module (3) and separates the anaerobic and facultative oxygen zone (6) and the aerobic zone (7), the tri-oxygen aeration member (42a) is arranged outside the barrel body (1) and connected with the aerobic zone (7), the barrel body (1) is formed with a second cushion block (11), the second filter group (43a) is connected with the second cushion block (11), and the sewage discharge assembly (44a) is arranged at the bottom of the barrel body (1) and communicated with the aerobic zone (7) and the anaerobic and facultative oxygen zone (6).

7. The denitrification and dephosphorization filter with a three-oxygen micro-ecological environment according to claim 6, characterized in that: The sewage discharge assembly (44a) comprises a sewage collecting plate (441a), an outflow pipe (442a) and an adjusting valve (443a), the sewage collecting plate (441a) is arranged at the lower part of the barrel body (1) and connected with the anaerobic and facultative oxygen 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), and the first end of the adjusting valve (443a) is communicated with the outflow pipe (442a) and the second end of the adjusting valve (443a) is communicated with an external pipeline.

8. The denitrification and dephosphorization filter with a three-oxygen micro-ecological environment according to claim 4, characterized in that: The water distribution groove (311) is provided with a water inflow port, the tri-oxygen microbial module (4) comprises a plurality of hydrophobic plates (41b), a flow interception plate (42b), an oxygenation aeration member (43b) and a plurality of fiber filter groups (44b), each hydrophobic plate (41b) is arranged between the barrel body (1) and the mechanical filtration module (3), the flow interception plate (42b) is fixedly connected with the mechanical filtration module (3), the flow interception plate (42b) is arranged below the water inflow port, the oxygenation aeration member (43b) is arranged along the bottom of the barrel body (1), one end of each fiber filter group (44b) is fixedly connected with the bottom of the barrel body (1), the other end of each fiber filter group (44b) is fixedly connected with the upper part of the barrel body (1), and the bottom of the barrel body (1) is provided with a dredging member (45b).

9. The denitrification and dephosphorization filter with a three-oxygen micro-ecological 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), the first connecting plate is detachably installed on the top of the barrel body (1), the second connecting plate is detachably installed on the bottom of the barrel body (1), and each filter fiber (46b) is arranged between the first connecting plate and the second connecting plate.

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