CN219792694U - Device for removing suspended matters in circulating aquaculture water deeply - Google Patents
Device for removing suspended matters in circulating aquaculture water deeply Download PDFInfo
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- CN219792694U CN219792694U CN202320564881.4U CN202320564881U CN219792694U CN 219792694 U CN219792694 U CN 219792694U CN 202320564881 U CN202320564881 U CN 202320564881U CN 219792694 U CN219792694 U CN 219792694U
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The utility model discloses a device for removing suspended matters in circulating aquaculture water deeply, and relates to the field of water treatment; the device comprises a culture pond and a filter pond, wherein a fiber turntable filter is arranged in the filter pond, a water inlet of the filter pond is communicated with a water outlet at the bottom of the culture pond through a pipeline, and a control valve is arranged on the pipeline; the water outlet of the filter tank is communicated with a temporary storage tank, the temporary storage tank is communicated with the culture tank through a water return pipe, the filter tank is communicated with a magnetic coagulation sedimentation device through a sewage pump, a purified water outlet of the magnetic coagulation sedimentation device is communicated with the temporary storage tank through a water purifying pipe, and a water pump is arranged on the water return pipe; a mud discharging device is arranged in the filter tank. The utility model can prevent the water loss of cultivation by deeply removing suspended matters by returning the water with suspended matters removed back to the cultivation pool.
Description
Technical Field
The utility model relates to the technical field of water treatment, in particular to a device for removing suspended solids in circulating aquaculture water.
Background
The aquaculture is an important component of a grain safety guarantee system in China, and provides a large amount of high-quality animal-derived proteins for the national people. With the rapid development of the aquaculture industry in China, the environment is increasingly deteriorated due to the culture tail water, so that the diseases of the cultured organisms are frequently generated, the sanitation and safety of the aquatic products are affected, and the sustainable development of the culture is limited. The circulating water culture mode becomes the necessary trend of the aquaculture industry development due to the characteristics of water conservation, high culture density, controllable system, insusceptibility to external environment and the like. In the cultivation water circulation process, the flow velocity is high, the flow rate is large, the content of suspended matters is extremely low, and the suspended matters only occupy a few parts per million of the cultivation water mass. The suspended matter mainly consists of feces, residual bait, microalgae, bacteria and the like, and the size of the suspended matter varies greatly from cm to nm. These suspensions, if not removed in time, become smaller and even dissolved. The effect of removing suspended matters in the circulating water directly influences the success and failure of a circulating water culture system. The existing suspended matter treatment device for circulating water culture has low filtering precision and poor effect, a common vertical flow precipitator and a rotary drum micro-filter can only filter suspended matters with the particle size larger than 30 microns, a foam separator can only collect suspended matters with surface activity, and the device can remove the suspended matters from a culture system by a large amount of water flow. The loss of large amounts of water flow tends to affect the operational stability and economic viability of the recirculating aquaculture system.
Disclosure of Invention
The utility model aims to provide a device for removing suspended matters in circulating aquaculture water in depth, which solves the problems in the prior art, and avoids the loss of aquaculture water while removing suspended matters in depth by returning water from which suspended matters are removed to an aquaculture pond.
In order to achieve the above object, the present utility model provides the following solutions:
the utility model provides a device for removing suspended solids in circulating aquaculture water, which comprises an aquaculture pond and a filter pond, wherein a fiber turntable filter is arranged in the filter pond; the water outlet of the filter tank is communicated with a temporary storage tank, the temporary storage tank is communicated with the culture tank through a water return pipe, the filter tank is communicated with a magnetic coagulation sedimentation device through a sewage pump, a purified water outlet of the magnetic coagulation sedimentation device is communicated with the temporary storage tank through a purified water pipe, and purified water flows into the temporary storage tank under the action of gravity; the fiber rotary disc filter is provided with a back flushing system, and the back flushing system is used for carrying out back flushing on the filter cloth in a targeted manner; a mud discharging device is arranged in the filter tank.
Optionally, the fiber rotary disc filter comprises a central rotary drum, a filter disc, a transmission system and a matched electrical control system, wherein the filter disc is fixed on the outer side of the central rotary drum and is communicated with the central rotary drum; the central drum is connected with a transmission system.
Optionally, the filter disc comprises a framework and filter cloth, the filter cloth is wrapped on the framework, the filter cloth is composed of a substrate woven by polyester and fluff woven by nylon fiber to be 1-2 cm thick, and the fluff is perpendicular to the substrate.
Optionally, the first-stage coagulation reaction tank, the second-stage coagulation reaction tank, the flocculation reaction tank and the clarification tank of the magnetic coagulation sedimentation device are sequentially communicated, water flow can be sequentially coagulated and flocculated and precipitated in the reaction tanks, finally obtained clear water flows out through a clear water outlet of the clarification tank, a sewage outlet of the filter tank is communicated with the first-stage coagulation reaction tank, a clear water outlet of the clarification tank is connected with a temporary storage tank, magnetic seed-containing sludge discharged from the bottom of the clarification tank enters the second-stage coagulation reaction tank after passing through the magnetic seed recovery device, the sludge automatically flows to a sludge tank, and after a small amount of biological flocculant is added into the sludge tank for treatment, the sludge is separated by a centrifugal machine.
Optionally, the ozone sterilizing device is also included; the ozone disinfection device is an ozone generator provided with an ejector, and is positioned at the front end of a water inlet of the primary coagulation reaction tank.
Optionally, the device also comprises an ultraviolet sterilizing device, wherein the ultraviolet sterilizing device comprises an ultraviolet sterilizer positioned at the outlet side of the purified water, a plurality of ultraviolet lamp tubes are arranged in the ultraviolet sterilizer, and the power of the ultraviolet lamp tubes is 50-100 w.
Optionally, the filtering precision of the filter cloth is not less than 10 micrometers and not more than 30 micrometers.
The utility model also provides a method for removing suspended matters in the circulating aquaculture water in depth, which comprises the following steps:
after feeding of the cultured organisms, the suspended matter concentration of the culture pond rises rapidly, and microalgae which are cultured in advance are manually added into the culture pond at one time, so that the density of the microalgae in the culture pond is 1-10 mg/L;
after the microalgae and suspended matters fully act, the culture water gravity flows into a filter tank, is filtered by a fiber rotary disc filter, and the filtered clear water flows into a temporary storage tank and returns to the culture tank through a water inlet pipe;
during the filtration process, the pollutant is accumulated, when the liquid level of the filtering pond reaches a set value, a back flushing system is automatically started to back flush the impurities accumulated by the filter cloth;
the sewage containing impurities after back flushing enters a magnetic coagulation sedimentation device through a sewage outlet of a filter tank for treatment, the treated purified water flows into a temporary storage tank through a purified water pipe and finally returns into a culture tank, the sludge without magnetic seeds after magnetic seed recovery enters a sludge tank for temporary storage, and a small amount of biological flocculant is added for treatment and then is separated by a centrifuge for treatment.
Optionally, the microalgae is one or more of Euglena, chlorella, dunaliella salina and Paecilomyces japonica.
Compared with the prior art, the utility model has the following technical effects:
after the cultured organisms eat, the concentration of suspended matters in the culture pond rises rapidly, the micron-sized microalgae can serve as a nucleation center or a bioflocculant to promote agglomeration between suspended matters with small particle size and suspended matters with large particle size, and the surfaces of microalgae cells can rapidly adsorb ammoniacal nitrogen dissolved in water and then flow into the filter pond by gravity. The fiber turntable filter not only can filter, but also has a precipitation function. The suspended matters with larger particle size are directly sunk, so that the sludge quantity of the filter cloth is obviously reduced, and the backwash water quantity is also greatly reduced. The utility model can efficiently remove more than 99% of suspended matters in the breeding tail water within two hours, when the precision of the filter cloth of the fiber rotary disc filter is 30 mu m, the total solid content of the treated water is less than 5mg/L, when the precision of the filter cloth is 10 mu m, the total solid content is less than 2mg/L, and the requirements of fishery water quality standards on the total solid content are lower. In the utility model, suspended matters are removed in time, so that suspended matters become smaller, soluble components are prevented from being dissolved out, the treated aquaculture water returns to the aquaculture pond through the water return pipe, and the water loss in 24 hours is less than 0.5% of the total aquaculture water in the suspended matters removal process; and the recycling of 99.5% of the culture water avoids the problem that the water temperature is difficult to adjust due to the addition of new water. In the utility model, the cost for treating 100 tons of cultivation circulating water is lower than 20 yuan.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural layout of a device for removing suspended solids in circulating aquaculture water according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram showing the structural arrangement of a magnetic coagulating sedimentation device according to a second embodiment of the present utility model;
reference numerals illustrate: 1-cultivation pool, 2-filtering pool, 3-fiber rotary disc filter, 4-control valve, 5-temporary storage pool, 6-return pipe, 7-water pump, 8-transmission system, 9-magnetic coagulation sedimentation device, 901-purified water outlet, 902-primary coagulation reaction pool, 903-secondary coagulation reaction pool, 904-flocculation reaction pool, 905-clarification pool, 906-sludge pool and 10-glass fiber reinforced plastic grating plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide a device for removing suspended matters in circulating aquaculture water in depth, which solves the problems in the prior art, and avoids the loss of aquaculture water while removing suspended matters in depth by returning water from which suspended matters are removed to an aquaculture pond.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1
The fiber rotary disc filter is a water treatment unit with good suspended matter removal effect, the total suspended matter in the effluent can be less than 2mg/L, even lower, the running cost is very low, the running cost for treating one ton of water is only 0.004 yuan, and the fiber rotary disc filter has been widely applied to the fields of sewage treatment, reclaimed water recycling, surface water purification and the like.
The inventor researches in detail to find that the sedimentation function of the fiber rotary disc filter is obviously better than that of a vertical flow precipitator commonly used in the existing circulating water culture system, and the suspended matters with large particle size can be sedimented in a very short time and can be discharged out of the culture system more conveniently; compared with a rotary drum micro-filter, when the fiber rotary disc filter with the same filtering precision is used for removing suspended matters in circulating aquaculture water, the required backwash water quantity is less, and the backwash water quantity is increased along with the increase of the filtering precision of the filter cloth; very interesting, the inventors have also found that the fluff-forming effective filter layer can entrap fine particle size suspensions by bridging. The inventor researches whether the common commercial flocculating agents such as polyaluminium chloride, polymeric ferric sulfate and the like are not suitable for deep removal of suspended matters in circulating aquaculture water, mainly because aquaculture organisms are exposed to an environment containing the flocculating agent for a long time, and the edible safety risk is obviously increased. In order to avoid the influence of the flocculant on the edible safety of cultured organisms, the biological flocculant such as chitosan, microalgae extracellular polysaccharide and the like which can be safely eaten is adopted, and experimental results of a system show that the practical effect is not ideal, and the backwash water quantity is obviously increased mainly because the biological flocculant is extremely easy to be adhered to the substrate and the fluff of the filter cloth.
Based on the design study, the inventor adopts microalgae as a flocculating agent and cooperates with a fiber rotary disc filter to remove suspended matters in water, and as shown in fig. 1, the structure of the device for removing suspended matters in circulating aquaculture water comprises an aquaculture pond 1 and a filter pond 2, wherein the fiber rotary disc filter 3 is arranged in the filter pond 2, a water inlet of the filter pond 2 is communicated with a water outlet at the bottom of the aquaculture pond 1 through a pipeline, and a control valve 4 is arranged on the pipeline; the water outlet of the filter tank 2 is communicated with a temporary storage tank 5, the temporary storage tank 5 is communicated with the culture tank 1 through a water return pipe 6, and a water pump 7 is arranged on the water return pipe 6; the filter tank 2 is internally provided with a mud discharging device.
The fiber rotary disc filter comprises a central rotary drum, a filter disc, a transmission system 8, a back flushing system and a matched electrical control system, wherein the filter disc is fixed on the outer side of the central rotary drum and is communicated with the central rotary drum; the central drum is connected with a transmission system. The filter disc comprises a framework and filter cloth, wherein the framework is wrapped with the filter cloth, the filter cloth consists of a substrate woven by polyester and fluff woven by nylon fiber to be 1-2 cm thick, the fluff is perpendicular to the substrate, and the filter precision of the filter cloth is not less than 10 microns and not more than 30 microns. During normal filtration, the fluff lodges and forms an effective filter layer with the thickness of 3-5 mm, thereby realizing the full interception of the suspended matters with large particle size. The clear water which has passed through the filter cloth flows into the central drum and is discharged from the central drum outlet. With the progress of filtration, the suspended matters trapped by the effective filter layer are continuously increased, the water quantity passing through the filter cloth is reduced, so that the liquid level of the filter tank rises and reaches a set value, a back flushing system and a transmission system are triggered, a back flushing pump starts to operate, a filter disc starts to rotate, under the strong suction of the back flushing pump, the filter cloth substrate and the effective filter layer are sequentially flushed from inside to outside by clear water passing through the filter cloth, the effective filter layer is enabled to be invalid and restored to fluff, suspended matters accumulated on the effective filter layer and the outer side enter a sewage pipeline along with back flushing water flow, and then the suspended matters are discharged out of the device. After the back flushing is finished, the filter cloth forms an effective filter layer again and enters static filtration. Operating in this cycle.
The working method of the device for removing suspended solids in circulating aquaculture water comprises the following steps:
after the cultured organisms eat, when the concentration of the fine particle size particles in the culture pond is higher, for example, after the cultured organisms eat for 30-60 minutes, a certain amount of microalgae which are one or more of Euglena, chlorella, dunaliella salina and pseudo-microalgae and are cultured in advance are added at a time, so that the density of the algae in the culture pond is 1-10 mg/L, and the micron-sized microalgae can be used as a nucleation center or a flocculating agent to promote aggregation between small particle size suspended matters and large particle size suspended matters; the surface of the microalgae cells can rapidly adsorb ammonia nitrogen dissolved in water;
after microalgae and suspended matters fully act, a control valve 4 on a water outlet pipeline is opened, so that the culture water gravity flows into a filter tank 2, the flow of the water outlet pipeline can be regulated by the control valve 4 according to requirements, filtered clear water flows into a temporary storage tank 5 through a fiber rotary disc filter 3 and flows back to the culture tank 1 through a water return pipe 6, a water outlet filtered by the fiber rotary disc filter 3 can directly enter a water inlet of the culture tank 1 through the temporary storage tank 5, and the culture tank can be further purified and returned to the culture tank. The sewage outlet of the fiber rotary disc filter 3 is connected with a sewage storage pool; the fiber turntable filter not only can filter, but also has a precipitation function. The suspended solids with larger particle size are directly sunk, so that the sludge quantity of the filter cloth is obviously reduced, and the backwash water quantity is also greatly reduced. In the utility model, the fiber rotary disc filter can efficiently remove more than 99% of suspended matters in the breeding tail water within two hours;
and (3) accumulating pollutants in the filtering process, and automatically starting a back flushing system to back-flush impurities accumulated on the inner side of the filter cloth when the liquid level of the filtering tank reaches a set value.
Example two
Considering that when the fiber rotary disc filter 3 is backwashed, part of water is mixed with backwashed impurities and cannot flow back to the culture pond, part of culture water is still wasted, the inventor uniquely designs a magnetic coagulation sedimentation device 9 communicated with the filter pond on the basis of the first embodiment, as shown in fig. 2, a purified water outlet 901 of the magnetic coagulation sedimentation device 9 is communicated with a temporary storage pond 5 through a purified water pipe, a valve is arranged on the purified water pipe, the magnetic coagulation sedimentation device 9 comprises a first-stage coagulation reaction pond 902, a second-stage coagulation reaction pond 903, a flocculation reaction pond 904, a sludge pond 906 and a clarification pond 905, the first-stage coagulation reaction pond 902, the second-stage coagulation reaction pond 903, the flocculation reaction pond 904 and the clarification pond 905 are sequentially communicated, the purified water outlet 901 is formed on one side of the clarification pond 905, the filter pond 2 is communicated with the first-stage coagulation reaction pond 902, magnetic seed-containing sludge at the bottom of the clarification pond is subjected to magnetic seed recovery by a magnetic seed recoverer, the magnetic seed enters the second-coagulation reaction pond, no magnetic seed sludge is added into the sludge pond, and a small amount of biological flocculant is added into the sludge pond for treatment, the concentration and dehydration of the sludge is subjected to centrifugal separation, a glass fiber reinforced plastics grid plate 10 is arranged in one embodiment, and a glass reinforced plastics grid plate 10 is not used for the purpose of defining a concrete grid plate structure, and a glass reinforced plastics grid plate 10 is not used for the filter structure is arranged; according to the utility model, the magnetic coagulation sedimentation device 9 is used for adding magnetic seeds on the basis of conventional coagulation, the polyaluminium chloride, the magnetic seeds and the anionic polyacrylamide are all medicines for pretreatment of drinking water sold in the market, clear water discharged from a clarification tank returns to a culture tank, sludge without the magnetic seeds is discharged from a magnetic seed recovery device and is subjected to centrifugal separation, supernatant fluid enters an inlet of the clarification tank, the obtained solid is treated according to relevant regulations of a solid waste management method, and lost water flow is supplemented by new water. The high concentration magnetic seed and partial reflux sludge always exist in the coagulation process, and the magnetic seed-containing floccule formed by the flocculant, the pollutant, the magnetic seed and the coagulant aid has high specific gravity and high gravity sedimentation speed.
The inventor detects the Al of the water body of the culture pond daily 3+ And the concentration of polyacrylamide, al 3+ And polyacrylamide concentrationThe degree is almost unchanged and is at a lower level, and the Al after the culture water is treated by the magnetic coagulating sedimentation process for many times is completely eliminated 3+ And polyacrylamide concentrations may rise, causing concern about the edible safety of farmed organisms. That is, the conventional magnetic coagulation sedimentation process can be used for on-line purification of the cultivation circulating water. The inventor researches in detail to find that the solid content of the sludge discharged by the magnetic seed recovery device in the magnetic coagulation sedimentation process is only 0.5% -2%, if the solid content of the sludge is required to be lower than 75% for convenient storage and transportation, a cationic flocculant is required to be added before centrifugal separation, once the water flow of the cationic flocculant enters the culture water body, the bonding bridging effect of anionic polyacrylamide can be weakened, the effect of purifying the culture circulating water by the magnetic coagulation sedimentation process is influenced to a certain extent, even greatly reduced, and in order to increase the sludge floc, a small amount (10% -20% of the mass fraction of coagulant aid, and optimally 15%) of biological flocculant with opposite charge properties of the coagulant aid such as chlorella extracellular polysaccharide and chitosan can be added in a sludge pond, so that the problem that the water flow contains cations and affects the culture is avoided. The magnetic coagulation sedimentation device can effectively remove suspended matters with larger particle size discharged by the sludge discharge device of the fiber rotary disc filter, can remove suspended matters with smaller particle size such as bacteria, viruses and the like discharged by the back flushing device, can fully remove substances such as macromolecular proteins, grease and the like, and has no sewage discharge except for generating solid matters with the water content of 70-75%. The obtained solid can be used as an organic fertilizer after being treated, and the treatment cost of each ton of aquaculture water is about 0.30 yuan; after the wastewater is treated by the method, the wastewater can return to a culture pond and also can enter a water quality purification procedure, in particular to deep purification of nutrient components dissolved in water N, P.
Further preferably, in another embodiment, an ozone sterilizing device and an ultraviolet sterilizing device can be additionally arranged. The ozone disinfection device is preferably an ozone generator provided with an ejector, the ozone disinfection device is preferably positioned at the front end of the water inlet of the magnetic coagulation sedimentation device, the water in the water body of the fiber rotary disc filter is treated and is introduced with ozone through the ejector, and the ozone introduction amount is 15-25 g/h, preferably 18-22 g/h, and more preferably 20g/h. An ultraviolet sterilizer is arranged behind the magnetic coagulation sedimentation device, and a plurality of ultraviolet lamp tubes are arranged in the ultraviolet sterilizer, wherein the power of the ultraviolet lamp tubes is preferably 50-100 w, more preferably 75w; the brand of the ultraviolet lamp tube can be Philips; the disinfection of the water for cultivation is more beneficial to maintaining the water quality of the water for cultivation and realizing the recycling of the water for cultivation.
The working method of the device for removing suspended solids in circulating aquaculture water in the embodiment comprises the following steps:
after feeding of the cultured organisms, the concentration of suspended matters in the culture pond 1 rises, and microalgae which are cultured in advance are manually added into the culture pond 1 at one time, so that the density of the microalgae in the culture pond is 1-10 mg/L;
after microalgae and suspended matters are aggregated and flocculated to the bottom of the culture pond 1, a control valve 4 on a water outlet pipeline is opened, so that the aggregated and flocculated suspended matters flow into the filter pond, the filter pond is opened, water flows into the rotary drum from an opening at one end of the central rotary drum in the working process of the fiber rotary drum filter 3, enters all rotary drums through communication holes, and after being filtered by the filter cloth, clear water flows out of the filter cloth and flows out of a filtered water outlet. In the utility model, as the filtration is carried out, the trapped pollutant inside the filter cloth is continuously increased, the filtration pressure difference is increased, and the water quantity smoothly passing through the filter cloth is reduced. The filtered clear water flows into the temporary storage tank 5 and flows back to the culture tank 1 through the water return pipe;
when the pollutant is accumulated to a certain extent, the liquid level of the filter tank reaches a set value, backwashing is carried out, and impurities accumulated on the inner side of the filter cloth are backwashed. The backwash water pump pumps clear water penetrating through the filter cloth and sprays the clear water to the outer side of the filter cloth, the trapped impurities on the inner side of the filter cloth are washed down, and the washed sewage enters the magnetic coagulation sedimentation device. The rotary table rotates during backwashing, the backwash water sprays filter cloth with different angles until the rotary table rotates for one circle, the filter cloth is completely cleaned, the backwashing is stopped, and the filter cloth enters the filtering process again until backwashing is performed again;
the backwashed sewage containing impurities flows into the magnetic coagulation sedimentation device 9 through the sewage outlet of the filter tank for secondary disinfection, flocculation and sedimentation treatment, and the purified water after the secondary treatment flows into the temporary storage tank through the purified water pipe and finally flows back into the culture tank.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (7)
1. The utility model provides a circulating aquaculture aquatic suspended solid degree of depth remove device which characterized in that: the device comprises a culture pond and a filter pond, wherein a fiber turntable filter is arranged in the filter pond, a water inlet of the filter pond is communicated with a water outlet at the bottom of the culture pond through a pipeline, and a control valve is arranged on the pipeline; the water outlet of the filter tank is communicated with a temporary storage tank, the temporary storage tank is communicated with the culture tank through a water return pipe, the filter tank is communicated with a magnetic coagulation sedimentation device through a sewage pump, a purified water outlet of the magnetic coagulation sedimentation device is communicated with the temporary storage tank through a water purifying pipe, and a water pump is arranged on the water return pipe; a mud discharging device is arranged in the filter tank.
2. The circulating aquaculture water suspended matter depth removal device of claim 1, wherein: the fiber rotary disc filter comprises a central rotary drum, a filter disc, a transmission system, a back flushing system and a matched electrical control system, wherein the filter disc is fixed on the outer side of the central rotary drum and is communicated with the central rotary drum; the central drum is connected with a transmission system.
3. The circulating aquaculture water suspended matter depth removal device of claim 2, wherein: the filter disc comprises a framework and filter cloth, wherein the filter cloth is wrapped on the framework, the filter cloth consists of a substrate woven by polyester and fluff woven by nylon fiber to be 1-2 cm thick, and the fluff is perpendicular to the substrate.
4. The circulating aquaculture water suspended matter depth removal device of claim 1, wherein: the magnetic coagulation sedimentation device comprises a primary coagulation reaction tank, a secondary coagulation reaction tank, a flocculation reaction tank and a clarification tank, wherein the primary coagulation reaction tank, the secondary coagulation reaction tank, the flocculation reaction tank and the clarification tank are sequentially communicated, a purified water outlet is formed in one side of the clarification tank, the filtration tank is communicated with the primary coagulation reaction tank, a purified water outlet of the clarification tank is connected with a temporary storage tank, magnetic seed-containing sludge discharged from the bottom of the clarification tank enters the secondary coagulation reaction tank after passing through a magnetic seed recovery device, and the sludge automatically flows to a sludge tank.
5. The circulating aquaculture water suspension depth removal device of claim 4 wherein: the ozone sterilizing device is also included; the ozone disinfection device is an ozone generator provided with an ejector, and is positioned at the front end of a water inlet of the primary coagulation reaction tank.
6. The circulating aquaculture water suspension depth removal device of claim 4 wherein: the ultraviolet sterilizing device comprises an ultraviolet sterilizer positioned at the outlet side of the purified water, wherein a plurality of ultraviolet lamp tubes are arranged in the ultraviolet sterilizer, and the power of the ultraviolet lamp tubes is 50-100 w.
7. A recirculating aquaculture water suspension depth removal device according to claim 3, wherein: the filtering precision of the filter cloth is not less than 10 microns and not more than 30 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320564881.4U CN219792694U (en) | 2023-03-21 | 2023-03-21 | Device for removing suspended matters in circulating aquaculture water deeply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320564881.4U CN219792694U (en) | 2023-03-21 | 2023-03-21 | Device for removing suspended matters in circulating aquaculture water deeply |
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| Publication Number | Publication Date |
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| CN219792694U true CN219792694U (en) | 2023-10-03 |
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|---|---|---|---|
| CN202320564881.4U Active CN219792694U (en) | 2023-03-21 | 2023-03-21 | Device for removing suspended matters in circulating aquaculture water deeply |
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| Country | Link |
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| CN (1) | CN219792694U (en) |
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- 2023-03-21 CN CN202320564881.4U patent/CN219792694U/en active Active
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