CN118063055A - Ecological treatment system for industrial aquaculture tail water - Google Patents
Ecological treatment system for industrial aquaculture tail water Download PDFInfo
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- CN118063055A CN118063055A CN202410501295.4A CN202410501295A CN118063055A CN 118063055 A CN118063055 A CN 118063055A CN 202410501295 A CN202410501295 A CN 202410501295A CN 118063055 A CN118063055 A CN 118063055A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 209
- 229910001868 water Inorganic materials 0.000 title claims abstract description 209
- 238000009360 aquaculture Methods 0.000 title claims abstract description 71
- 244000144974 aquaculture Species 0.000 title claims abstract description 71
- 238000004062 sedimentation Methods 0.000 claims abstract description 44
- 230000032683 aging Effects 0.000 claims abstract description 12
- 239000010865 sewage Substances 0.000 claims abstract description 11
- 238000007790 scraping Methods 0.000 claims description 59
- 239000006260 foam Substances 0.000 claims description 45
- 238000005273 aeration Methods 0.000 claims description 42
- 230000007246 mechanism Effects 0.000 claims description 36
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
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- 238000004064 recycling Methods 0.000 abstract description 6
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 23
- 244000005700 microbiome Species 0.000 description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 13
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- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
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Landscapes
- Biological Treatment Of Waste Water (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to the technical field of wastewater treatment, in particular to an ecological treatment system for industrial aquaculture tail water, which comprises a culture pond, a sedimentation pond, an ecological treatment pond and a circulating pond, wherein the height positions of the culture pond, the sedimentation pond, the ecological treatment pond and the circulating pond are sequentially lowered; the cultivation pond is communicated with the sedimentation pond through a pipeline, a first dam body is arranged between the sedimentation pond and the ecological treatment pond, and a second dam body is arranged between the ecological treatment pond and the circulating pond; the circulating pool is communicated with the culture pool through a circulating pipeline; the first dam body is provided with a first water outlet, and the second dam body is provided with a second water outlet; the ecological treatment system also comprises a collection tank, wherein the collection tank is lower than the ecological treatment tank; the bottom of the sedimentation tank and the ageing tank are communicated through a sewage drain, and the first water outlet is higher than the bottom of the sedimentation tank. The system can carry out multiprocessing on the aquaculture tail water, so that the tail water is reused for aquaculture, the water resource recycling in factory aquaculture is realized, and the sewage quantity needing to be discharged outwards is reduced.
Description
Technical Field
The invention relates to the technical field of wastewater treatment, in particular to an ecological treatment system for industrial aquaculture tail water.
Background
In the mode of industrial aquaculture, the aquaculture density is generally high, and the feed feeding amount is large. On one hand, aquatic product excreta, feed residues and dead aquatic products can cause the culture tail water to be rich in organic matters; on the other hand, nitrogen and phosphorus in the feed and the metabolic activity of aquatic products can lead the cultivation tail water to be rich in nitrogen substances such as ammonia nitrogen, nitrite, nitrate and the like. The traditional large drainage mode not only greatly consumes water resources, but also can cause serious harm to the ecological environment of the surrounding water body (the imported river).
Therefore, the aquaculture tail water must be treated prior to discharge of the industrial aquaculture tail water. Common treatment modes include physical treatment, chemical treatment and biological treatment, wherein the physical treatment modes include precipitation, filtration and other means, and the time consumption is long and the effect is poor; chemical treatment methods such as adding chemical reagents such as flocculating agents and the like are performed in a matching way with physical methods to achieve a better effect and possibly generate other harmful byproducts; the biological treatment mode is widely applied due to the characteristics of environmental protection, high efficiency, low energy consumption and the like.
Based on the method, the ecological treatment system for the industrial aquaculture tail water is designed, a plurality of means in the treatment mode are organically combined, the industrial aquaculture tail water can be effectively treated, the aim of being reused for industrial aquaculture is fulfilled, the water resource recycling in the industrial aquaculture is realized, and the damage of sewage discharge to surrounding water is also reduced.
Disclosure of Invention
The invention aims to provide an ecological treatment system for industrial aquaculture tail water, which can at least partially overcome the technical problems, realize the effective treatment of industrial aquaculture tail water, achieve the aim of being reused for industrial aquaculture, realize the recycling of water resources in industrial aquaculture, and simultaneously reduce the damage of mass discharge of sewage to surrounding water.
The invention provides an ecological treatment system for industrial aquaculture tail water, which comprises: a cultivation pool, a sedimentation pool, an ecological treatment pool and a circulating pool with the height positions descending in sequence; the cultivation pond is communicated with the sedimentation pond through a pipeline, a first dam body is arranged between the sedimentation pond and the ecological treatment pond, and a second dam body is arranged between the ecological treatment pond and the circulating pond; the circulating pool is communicated with the culture pool through a circulating pipeline; a first water outlet is formed in one side, facing the ecological treatment tank, of the first dam body, and a second water outlet is formed in one side, facing the circulating tank, of the second dam body; the ecological treatment system also comprises an album aging pond, wherein the album Chen Chidi is arranged in the ecological treatment pond; the bottom of the sedimentation tank is communicated with the ageing tank through a sewage drain pipe, and the first water outlet is higher than the bottom of the sedimentation tank.
Further, a plurality of biological band fillers are arranged in the ecological treatment tank, and an aeration mechanism is arranged below each biological band filler and is used for aerating the biological band filler.
Further, the ecological treatment system also comprises a foam scraping mechanism, wherein the foam scraping mechanism comprises a foam scraping driving assembly and a foam scraping executing assembly, and the foam scraping driving assembly comprises a crank, a connecting rod, a rocker, a sliding sleeve and a first sliding rod; the first sliding rod is fixedly arranged on the shore, and the sliding sleeve is sleeved on the first sliding rod and can slide along the first sliding rod; a shaft lever is arranged on one side, close to the crank, of the sliding sleeve, a first stop pin and a second stop pin are arranged on one side, far away from the crank, of the sliding sleeve, and the first stop pin is located above the second stop pin; one end of the crank is fixed on a driving shaft, the driving shaft can rotate around the axis of the driving shaft under the driving action of a power source, the other end of the crank is hinged with one end of the connecting rod, the other end of the connecting rod is hinged with one end of the rocker, the other end of the rocker is positioned between the first stop pin and the second stop pin, and the middle part of the rocker is hinged on the shaft lever; the foam scraping execution assembly comprises a scraping plate, a second sliding rod and a first reset spring, the second sliding rod is fixed on the wall of the ecological treatment tank, the first reset spring is sleeved on the second sliding rod, the scraping plate is sleeved on the second sliding rod in a sliding manner, and the scraping plate is positioned above the biological belt filler; the foam scraping driving assembly can drive the scraping plate to slide towards the second dam body along the second sliding rod, and the first reset spring can drive the scraping plate to be far away from the second dam body along the second sliding rod.
Further, a collector Chen Cao is disposed on a side of the second dam facing the circulation tank, the collector Chen Caogao is disposed at the second water outlet, and the collector Chen Cao is communicated to the collection tank.
Further, a spoiler assembly is further arranged in the ecological treatment tank, the spoiler assembly comprises a spoiler, a sliding rail and a second reset spring, the sliding rail is arranged on the tank wall of the ecological treatment tank, the second reset spring is arranged in the sliding rail, the spoiler is in sliding connection with the sliding rail, and the spoiler is positioned between the biological belt filler and the aeration mechanism; the foam scraping driving assembly can drive the spoiler to be far away from the second dam body along the sliding rail, and the second reset spring can drive the spoiler to slide towards the second dam body along the sliding rail.
Further, the aeration mechanism provides air flow through the air pump, the barrel of the air pump is fixed on the bank, the piston of the air pump is connected with the sliding sleeve, and the sliding sleeve drives the piston to slide back and forth in the barrel in the process that the scraping plate slides towards the second dam along the second sliding rod and in the process that the spoiler slides away from the second dam along the sliding rail.
Further, be provided with the stirring subassembly in the circulation tank, the stirring subassembly includes (mixing) shaft and sets up a plurality of stirring rake on this (mixing) shaft, the (mixing) shaft passes through the power supply drive rotates, makes the power supply when the drive the crank rotates around the axis of this driving shaft, the stirring rake is around the axis rotation of (mixing) shaft stirs the water in the circulation tank.
Further, the first dam body and the second dam body are respectively provided with a filter packing layer, and the filter packing layers comprise at least one of gravel, sand, activated carbon, filter cloth, ceramsite and zeolite.
Further, the first water outlet is a strip-shaped water outlet arranged along the length direction of the first dam body, an impact bearing platform is further arranged between the sedimentation tank and the ecological treatment tank, the impact bearing platform is higher than the ecological treatment tank, and water in the sedimentation tank flows out through the first water outlet, then impacts on the impact bearing platform and flows into the ecological treatment tank; the second water outlet is a strip-shaped water outlet arranged along the length direction of the second dam body, and water in the ecological treatment tank directly enters the circulating tank after flowing out through the second water outlet.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. According to the ecological treatment system for the industrial aquaculture tail water, provided by the embodiment of the invention, the cultivation tail water is introduced into the sedimentation tank for standing sedimentation, and the supernatant fluid is placed into the ecological treatment tank, and the residual sedimentation water body is discharged to the ageing tank, so that most suspended matters in the tail water are sedimentated and discharged; the supernatant fluid is filtered by the filter filler in the first dam body in the process of entering the ecological treatment tank, so that suspended matters which remain in the supernatant fluid and are not settled in time are further removed; the supernatant liquid flows out from the first water outlet to form a waterfall, the waterfall is firstly impacted on the impact bearing platform and then flows into the ecological treatment pool, the waterfall water flow is fully contacted with air in the process of flowing down from a high place so as to promote the dissolved oxygen of the water body, and the waterfall water flow is further impacted into tiny water drops in the impact process, so that the contact between the water body and the air is further increased, and the dissolved oxygen amount of the water body is further increased; in the process of treating the supernatant in the ecological treatment tank, microorganisms in the ecological treatment tank can decompose and convert organic waste and inorganic waste in water to a great extent, and under the action of an aeration mechanism, the dissolved oxygen of the water body is also greatly improved; the ecological treated water body can also undergo the filtering action of the filtering filler in the second dam body in the process of entering the circulating pool, so that the water quality of the water body entering the circulating pool after treatment is further ensured; then water temporarily stored in the circulating pool can be introduced into the culture pool for aquaculture again; that is, the ecological treatment system for factory aquaculture tail water provided by the embodiment of the invention can timely purify and treat aquaculture tail water, reduce the discharge amount of tail water, improve the recycling rate of aquaculture water, greatly improve the utilization rate of water resources, and avoid the waste of water resources and the harm to the ecological environment of surrounding water bodies caused by the traditional large-scale drainage mode;
2. According to the ecological treatment system for the industrial aquaculture tail water, a large amount of small bubbles generated in the aeration process of the aeration mechanism can be attached to suspended matters in water to float to the water surface, under the action of the foam scraping driving assembly, the foam scraping execution assembly can intermittently and circularly scrape the water surface of the ecological treatment pond, the foam attached with the suspended matters is pushed to the outer side of the second dam body, a small amount of the foam with the suspended matters pushed to the outer side of the second dam body can enter the collection tank and be introduced into the collection tank, and the foam is discharged after being treated together with waste of the sedimentation tank into the collection Chen Chizhong; therefore, the water quality of the water body treated by the ecological treatment tank can be further improved, so that the water body is more suitable for being reused for aquaculture, the messy discharge of wastewater caused by foam scraping is avoided, and the wastewater which is difficult to reuse for aquaculture is conveniently treated in a centralized manner;
3. According to the ecological treatment system for the industrial aquaculture tail water, provided by the embodiment of the invention, when the foam scraping driving assembly drives the foam scraping execution assembly to intermittently and circularly scrape the surface of the water body in the ecological treatment tank, in the intermittent time, the foam scraping driving assembly also drives the flow-around assembly to disturb the water body in the ecological treatment tank, the floating path of small bubbles is greatly increased through the disturbance of the spoiler on the water body, the small bubbles are in more sufficient contact with the water body, and the effect of aeration on the promotion of the dissolved oxygen of the water body is improved; in addition, the disturbance effect of the spoiler on the water body also ensures that the small bubbles generated by the aeration mechanism are more uniformly distributed, thereby being beneficial to the decomposition of organic waste and inorganic waste in the water body by microorganisms attached to the biological belt filler;
4. According to the ecological treatment system for the industrial aquaculture tail water, provided by the embodiment of the invention, when the foam scraping driving assembly drives the foam scraping execution assembly to intermittently and circularly scrape the surface of the water body in the ecological treatment tank, the sliding sleeve also carries the piston of the air pump to reciprocate in the cylinder body, the air charging action is executed to provide air flow for the aeration mechanism, and further, a power source does not need to be additionally arranged to supply air for the aeration mechanism, so that the whole system is simpler, and the maintenance is more convenient.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:
FIG. 1 is a schematic perspective view of an ecological treatment system for industrial aquaculture tail water according to an embodiment of the present invention;
FIG. 2 is a top view of the ecological treatment system for industrial aquaculture tail according to FIG. 1;
FIG. 3 is a cross-sectional view of the ecological treatment system for industrial aquaculture tail water according to line Y-Y of FIG. 2, wherein the rocker swings upward to abut the first stop pin and the end of the rocker remote from the crank hooks the scraper;
FIG. 4 is an enlarged schematic view of a portion of the area A shown in FIG. 3;
FIG. 5 is a partially enlarged schematic view of region B shown in FIG. 1;
FIG. 6 is an enlarged schematic view of a portion of the region C shown in FIG. 5;
FIG. 7 is a partially enlarged schematic view of the region D shown in FIG. 3;
FIG. 8 is an enlarged partial schematic view of the region E shown in FIG. 7;
FIG. 9 is another cross-sectional view of the ecological treatment system for industrial aquaculture tail water according to line Y-Y of FIG. 2, with the scraper sliding toward the second dam to a limit position and the rocker swinging downward, wherein the aquarium and the sedimentation tank are partially omitted during drawing for ease of showing the state of the froth drive assembly;
FIG. 10 is an enlarged schematic view of a portion of the region F shown in FIG. 9;
FIG. 11 is a partially enlarged schematic illustration of the G region according to FIG. 10;
fig. 12 is a schematic perspective view of a spoiler assembly disposed in a ecological treatment tank according to an embodiment of the present invention, wherein only a part of the ecological treatment tank is shown in the drawing for convenience of presentation;
FIG. 13 is an enlarged view of a portion of the H region shown in FIG. 12;
FIG. 14 is an enlarged view of the region I according to FIG. 13;
FIG. 15 is a further cross-sectional view of the ecological treatment system for industrial aquaculture tail water according to line Y-Y of FIG. 2, with the rockers swung down to abut the second stop pins;
FIG. 16 is an enlarged partial schematic view of the J region according to FIG. 15;
FIG. 17 is a cross-sectional view of the ecological treatment system for industrial aquaculture tail water according to the line Z-Z of FIG. 2, wherein the rocker swings downward to abut the second stop pin and the end of the rocker away from the crank abuts the abutment;
FIG. 18 is an enlarged view of a portion of the K region shown in FIG. 17;
FIG. 19 is another cross-sectional view of the ecological treatment system for industrial aquaculture tail water according to line Z-Z of FIG. 2, with the spoiler at a limit position along the rail away from the second dam and the rocker about to swing upward;
fig. 20 is a partially enlarged schematic view of the L region shown in fig. 19.
In the drawings, the reference numerals and corresponding part names:
1-a culture pond; 2-a sedimentation tank; 3-an ecological treatment pool; 31-biological band filler; 321-an aeration main pipe; 322-aeration branch pipes; 331-spoiler; 332-a slide rail; 333-a second return spring; 334-pushing part; 34-an impact bearing platform; 4-a circulating pool; 41-a circulation pipeline; 421-stirring shaft; 422-stirring paddles; 5-collecting a ageing pool; 51-a sewage drain pipe; 6-a first dam body; 61-a first water outlet; 7-a second dam body; 71-a second water outlet; 72-set Chen Cao; 811-a crank; 812-connecting rod; 813-rocker; 814-sliding sleeve; 8141-shaft; 8142-first stop pin; 8143-second stop pin; 815-a first slide bar; 821-scraping plate; 822-a second slide bar; 823-a first return spring; 9-an air pump.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention. It should be noted that the present invention is already in a practical development and use stage.
In the industrial aquaculture process, the aquaculture water is updated in a large-scale drainage mode, so that water resources are greatly consumed, and the tail water is treated before being discharged so as to reach the discharge standard for discharging. Therefore, the ecological treatment system for the industrial aquaculture tail water can treat the aquaculture tail water through various water treatment means, so that the aquaculture tail water is reused for aquaculture, on one hand, the water resource recycling in the industrial aquaculture is realized, on the other hand, the sewage quantity needing to be discharged outwards is reduced, and the harm degree to the ecological environment of the surrounding water is greatly reduced.
Example 1:
As shown in fig. 1 to 7, an embodiment of the present invention provides an ecological treatment system for industrial aquaculture tail water, comprising: a culture pond 1, a sedimentation pond 2, an ecological treatment pond 3 and a circulating pond 4, the height positions of which are sequentially lowered;
The cultivation pond 1 is communicated with the sedimentation pond 2 through a pipeline, a first dam 6 is arranged between the sedimentation pond 2 and the ecological treatment pond 3, and a second dam 7 is arranged between the ecological treatment pond 3 and the circulating pond 4; the circulating pool 4 is communicated with the culture pool 1 through a circulating pipeline 41; a first water outlet 61 is formed in one side of the first dam 6 facing the ecological treatment tank 3, and a second water outlet 71 is formed in one side of the second dam 7 facing the circulating tank 4;
the ecological treatment system also comprises a collection and aging pool 5, wherein the collection and aging pool 5 is lower than the ecological treatment pool 3;
The bottom of the sedimentation tank 2 is communicated with the collection tank 5 through a sewage drain pipe 51, and the first water outlet 61 is higher than the bottom of the sedimentation tank 2.
More preferably, a filter packing layer is disposed in each of the first dam 6 and the second dam 7, and the filter packing layer includes at least one of gravel, sand, activated carbon, filter cloth, ceramsite, and zeolite. The first water outlet 61 is a strip-shaped water outlet arranged along the length direction of the first dam body 6, an impact bearing platform 34 is further arranged between the sedimentation tank 2 and the ecological treatment tank 3, the impact bearing platform 34 is higher than the ecological treatment tank 3, and water in the sedimentation tank 2 flows out through the first water outlet 61, then impacts on the impact bearing platform 34 and flows into the ecological treatment tank 3; the second water outlet 71 is a strip-shaped water outlet arranged along the length direction of the second dam 7, and the water in the ecological treatment tank 3 directly enters the circulation tank 4 after flowing out through the second water outlet 71.
More specifically, a plurality of bio-zone fillers 31 are provided in the ecological treatment tank 3, and an aeration mechanism for aerating the bio-zone fillers 31 is provided below each of the bio-zone fillers 31.
After the water body is introduced into the ecological treatment tank 3 for the first time, a microorganism source is introduced from the outside, more specifically, bacillus subtilis suitable for the tail water of the freshwater aquaculture of the pond is added into the ecological treatment tank 3, and secondary sedimentation tank sludge of an urban domestic sewage treatment plant with large biomass is matched as the microorganism source. Meanwhile, the aeration mechanism positioned below the biological zone filling material 31 aerates the biological zone filling material 31, so that oxygen is provided for the growth and propagation of microorganisms on one hand, and the dissolved oxygen of the water body is improved on the other hand.
Based on this, these microbial sources can cause microorganisms to rapidly attach and multiply on the surface of the bio-zone packing 31 to form a bio-film layer, and continuously decompose and convert organic waste (typically caused by aquatic product excreta, feed residues and dead aquatic products) and inorganic waste (typically caused by nitrogen and phosphorus in feed and metabolic activity of aquatic products) in water; the aeration mechanism can provide oxygen for microorganisms and enrich the oxygen content of the water body; in addition, after the microbial population is stabilized in the ecological treatment tank 3, a plurality of microorganisms with different life habits in the ecological treatment tank 3 are layered to form an orderly ecological structure and gradient distribution, namely aerobic microorganisms, facultative microorganisms and anaerobic microorganisms are sequentially arranged from one side close to an aeration mechanism to the water surface along the depth direction of the water body, and in the biomembrane layer, aerobic microorganisms, facultative microorganisms and anaerobic microorganisms are sequentially arranged from one side close to water to one side close to the biological zone filling 31 along the thickness direction of the biomembrane layer, macromolecular organic matters in the water are decomposed in an anaerobic microorganism area, nitrate is denitrified in the anaerobic microorganism area, and other substances are decomposed in the aerobic microorganism area; the macromolecular organic matter is decomposed into micromolecular organic matter, phosphorus is converted into ATP, the micromolecular organic matter is decomposed into carbon dioxide and water, and nitrate nitrogen is converted into nitrogen; the small molecule organics are further decomposed into carbon dioxide and water. Organic matters are effectively removed, and synchronous nitrification and denitrification are realized.
When the ecological treatment system for the industrial aquaculture tail water is used for industrial aquaculture and tail water treatment, the water in the aquaculture pond 1 can be discharged to the sedimentation pond 2 and timely supplemented to the aquaculture pond 1 by continuously monitoring a plurality of preset monitoring indexes of the water in the aquaculture pond 1 under the condition that at least one monitoring index of each preset monitoring index is higher than a preset threshold value; then after the water body discharged into the sedimentation tank 2 is settled for a first preset time, discharging supernatant liquid in the sedimentation tank 2 to the ecological treatment tank 3 through the first water outlet 61 for ecological treatment, and discharging the rest sedimentation water body in the sedimentation tank 2 to the ageing collection tank 5 through the sewage drain pipe 51; after the supernatant is processed in the ecological processing tank 3 for a second preset time, the water in the ecological processing tank 3 is discharged to the circulating tank 4 for temporary storage, and when the water is needed to be supplemented by the culture tank 1, the supernatant is pumped into the culture tank 1 through the circulating pipeline 41 for culture again.
Based on the above, the ecological treatment system for the industrial aquaculture tail water is used for industrial aquaculture and tail water treatment, and most of suspended matters in the tail water can be discharged by introducing the aquaculture tail water into the sedimentation tank 2 for standing sedimentation, placing supernatant into the ecological treatment tank 3 and discharging the residual sedimentation water into the ageing tank 5; in addition, the supernatant fluid also passes through the filtering effect of the filtering filler in the first dam body 6 in the process of entering the ecological treatment tank 3, so that the suspended matters which remain in the supernatant fluid and are not settled in time are further removed; the supernatant liquid forms a waterfall after flowing out through the first water outlet 61, the waterfall is firstly impacted on the impact bearing platform 34 and then flows into the ecological treatment pool 3, the waterfall water flow is fully contacted with air in the process of flowing down from a high place so as to promote the dissolved oxygen of the water body, and the waterfall water flow is further collided into tiny water drops in the impact process so as to further increase the contact between the water body and the air and further increase the dissolved oxygen amount of the water body; in the process of treating the supernatant in the ecological treatment tank 3, microorganisms in the ecological treatment tank 3 can decompose and convert organic waste and inorganic waste in water to a great extent, and under the action of an aeration mechanism, the dissolved oxygen of the water body is also greatly improved; the ecological treated water body can also undergo the filtering action of the filtering filler in the second dam body 7 in the process of entering the circulating tank 4, so that the water quality of the water body entering the circulating tank 4 after treatment is further ensured; the water temporarily stored in the circulation tank 4 can then be introduced into the culture tank 1 for reuse in aquaculture. Therefore, the ecological treatment system for the industrial aquaculture tail water provided by the invention can timely purify and treat the aquaculture tail water, reduce the discharge amount of the tail water (only a small amount of wastewater which is introduced into the sedimentation tank 2 of the collection tank 5 is discharged after being treated independently), improve the recycling rate of the aquaculture water, greatly improve the utilization rate of water resources, and avoid the water resource waste and the harm to the ecological environment of the surrounding water body caused by the traditional large-scale drainage mode.
Example 2:
As shown in fig. 1 to 11, the present embodiment is based on embodiment 1, except that the ecological treatment system further comprises a foam scraping mechanism, the foam scraping mechanism comprises a foam scraping driving assembly and a foam scraping executing assembly, and the foam scraping driving assembly comprises a crank 811, a connecting rod 812, a rocker 813, a sliding sleeve 814 and a first sliding rod 815;
The first sliding rod 815 is fixedly installed on the shore, and the sliding sleeve 814 is sleeved on the first sliding rod 815 and can slide along the first sliding rod 815; a shaft rod 8141 is arranged on one side of the sliding sleeve 814 close to the crank 811, a first stop pin 8142 and a second stop pin 8143 are arranged on one side of the sliding sleeve 814 far from the crank 811, and the first stop pin 8142 is positioned above the second stop pin 8143;
One end of the crank 811 is fixed on a driving shaft, the driving shaft can rotate around the axis of the driving shaft under the driving action of a power source, the other end of the crank 811 is hinged with one end of the connecting rod 812, the other end of the connecting rod 812 is hinged with one end of the rocker 813, the other end of the rocker 813 is positioned between the first stop pin 8142 and the second stop pin 8143, and the middle part of the rocker 813 is hinged on the shaft 8141;
The foam scraping execution assembly comprises a scraping plate 821, a second sliding rod 822 and a first reset spring 823, wherein the second sliding rod 822 is fixed on the wall of the ecological treatment tank 3, the first reset spring 823 is sleeved on the second sliding rod 822, the scraping plate 821 is sleeved on the second sliding rod 822 in a sliding manner, and the scraping plate 821 is positioned above the biological belt filler 31;
The scraping driving assembly can drive the scraper 821 to slide along the second sliding rod 822 towards the second dam 7, and the first reset spring 823 can drive the scraper 821 to move away from the second dam 7 along the second sliding rod 822.
Hereinafter, the operation of the frothing mechanism will be described by taking an example in which a crank 811 shown in the drawings is provided at a side of the ecological treatment tank 3 close to the circulation tank 4. Under the action of the power source, the driving shaft rotates around the axis of the driving shaft and drives the crank 811 to rotate around the axis of the driving shaft (taking the anticlockwise rotation of the crank 811 in fig. 5 as an example); the crank 811 rotates to drive the connecting rod 812 to act, the connecting rod 812 drives the rocker 813 to swing around the shaft 8141 until the rocker 813 swings to abut against the first stop pin 8142 (meanwhile, one end of the rocker 813 away from the crank 811 hooks the scraping plate 821 as shown in fig. 5 to 8), at the moment, the rocker 813 cannot rotate around the shaft 8141 any more, and then the rocker 813 and the sliding sleeve 814 slide along the first sliding rod 815 towards the crank 811 under the rotation action of the crank 811 and slide along the second sliding rod 822 towards the second dam 7 with the scraping plate 821, and in the process, the scraping plate 821 synchronously pushes the water body of the water surface in the ecological treatment tank 3; until the crank 811 rotates to "overlap" with the connecting rod 812 (as shown in fig. 9 to 11), the sliding of the scraper 821 toward the second dam 7 reaches the limit position; after that, when the crank 811 continues to rotate, the rocker 813 swings downwards around the shaft 8141, so that the scraper 821 is released by the rocker 813, and the scraper 821 moves away from the second dam 7 along the second slide bar 822 under the action of the first reset spring 823, and returns to the initial position of the scraper 821; although the scraper 821 is released and returns to the initial position, the water on the water surface in the ecological treatment tank 3 continuously surges towards the second dam 7 and collides with the second dam 7 under the action of inertia, and in the process, part of the water on the water surface passes over the second dam 7 and is scraped outside the ecological treatment tank 3; the crank 811 continues to rotate until the rocker 813 swings to abut against the second stop pin 8143 (as shown in fig. 13 to 18), at which time the rocker 813 cannot rotate around the shaft 8141 any more, and then the rocker 813 and the sliding sleeve 814 together are far away from the crank 811 along the first sliding rod 815 under the rotation of the crank 811; until the crank 811 and the link 812 are "non-overlapping in line" (as shown in fig. 19, 20), after which continued rotation of the crank 811 will cause the rocker 813 to swing upwardly about the shaft 8141 until the rocker 813 swings to abut the first stop pin 8142 (while the end of the rocker 813 remote from the crank 811 again hooks the flight 821). It will be appreciated that in a crank-link mechanism, the crank acts as the driving member and must be brought into alignment with the link twice during one revolution of the crank, where one is when the crank and link overlap (i.e., corresponding to the aforementioned crank 811 being rotated to "overlap" with the link 812) and another is when the crank and link do not overlap (i.e., corresponding to the aforementioned crank 811 and link 812 being "non-overlapping").
Based on this, a large amount of small bubbles generated during aeration of the aeration mechanism will float up to the water surface along with suspended matters in the water, and under the action of the above-mentioned foam scraping driving component, the foam scraping executing component can intermittently and circularly scrape the water surface in the ecological treatment tank 3 (namely, the rocker 813 and the sliding sleeve 814 slide along the first sliding rod 815 towards the crank 811 and slide along the second sliding rod 822 towards the second dam 7 along the first sliding rod 815 together under the rotation action of the crank 811, in this process, the scraper 821 synchronously pushes the water surface in the ecological treatment tank 3), and the foam with suspended matters is pushed to the outer side of the second dam 7 through the action that the scraper 821 slides along the second sliding rod 822, thereby further improving the water quality of the water body treated by the ecological treatment tank 3 and making the water body more suitable for aquaculture again.
Further, a collector Chen Cao is arranged on one side of the second dam 7 facing the circulating tank 4, the collector Chen Cao is higher than the second water outlet 71, and the collector Chen Cao is communicated with the ageing tank 5.
Based on the above, the foam with suspended matters and a small amount of water body pushed to the outer side of the second dam 7 can enter the collector Chen Cao and be introduced into the collection tank 5, and are discharged after being treated together with the waste of the sedimentation tank 2 introduced into the collection tank 5, so that the foam with suspended matters and a small amount of water body scraped to the outer side of the second dam 7 by the foam scraping mechanism are collected, the waste water messy discharge caused by foam scraping can be avoided, and the waste water which is difficult to be reused for aquaculture is conveniently treated in a concentrated manner.
Example 3:
As shown in fig. 12 to 20, the present embodiment is based on embodiment 2, except that a spoiler assembly is further provided in the ecological treatment tank 3, the spoiler assembly includes a spoiler 331, a sliding rail 332, and a second return spring 333, the sliding rail 332 is provided on a tank wall of the ecological treatment tank 3, the second return spring 333 is provided in the sliding rail 332, the spoiler 331 is slidably connected with the sliding rail 332, and the spoiler 331 is located between the biological band filler 31 and the aeration mechanism;
the foam scraping driving assembly can drive the spoiler 331 to move away from the second dam 7 along the sliding rail 332, and the second return spring 333 can drive the spoiler 331 to slide toward the second dam 7 along the sliding rail 332.
More specifically, in order to facilitate the froth driving assembly to drive the spoiler 331 away from the second dam 7 along the sliding rail 332, a pushing portion 334 is provided on the spoiler 331, after the crank 811 continues to rotate until the rocker 813 swings to abut against the second stop pin 8143, the rocker 813 and the sliding sleeve 814 together are away from the crank 811 along the first sliding bar 815 under the rotation action of the crank 811, and in this process, one end of the rocker 813 away from the crank 811 can abut against the pushing portion 334 (as shown in fig. 13 and 14), so as to push the spoiler 331 away from the second dam 7 along the sliding rail 332; thereafter, until the crank 811 and the link 812 are "non-overlapping and collinear", the crank 811 continues to rotate so that the rocker 813 swings upward about the shaft 8141, and during the upward swing of the rocker 813, the end of the rocker 813 away from the crank 811 will no longer abut against the abutment 334, and the spoiler 331 is released and slides along the sliding rail 332 toward the second dam 7 under the action of the second return spring 333, returning to the original position of the spoiler 331. Thereafter, when the crank 811 is rotated again such that the rocker 813 and the sliding sleeve 814 together move away from the crank 811 along the first sliding bar 815, the end of the rocker 813 away from the crank 811 will again abut against the abutment 334 and push the spoiler 331 away from the second dam 7 along the sliding rail 332.
Based on the above, when the froth driving component drives the froth executing component to intermittently and circularly scrape the surface of the water body in the ecological treatment tank 3, in the intermittent time, the froth driving component also drives the flow-around component to disturb the water body in the ecological treatment tank 3 (more specifically, disturb the deep water body between the biological zone filling 31 and the aeration mechanism), and through disturbing the water body, turbulence is formed under water, so that the original floating path of the small bubbles generated by the aeration mechanism is changed, the floating path is not nearly straight and floats upwards, but is greatly moved in the horizontal direction under the action of turbulence in the floating process, namely, the floating path of the small bubbles is greatly increased due to the disturbance of the spoiler 331 to the water body, the small bubbles are in more sufficient contact with the water body, and the lifting effect of aeration on the dissolved oxygen of the water body is improved; in addition, the disturbance of the spoiler 331 to the water body also makes the small bubbles generated by the aeration mechanism more evenly distributed, which is beneficial to the decomposition of organic waste and inorganic waste in the water body by the microorganism attached to the biological band filler 31.
Example 4:
The difference between this embodiment and embodiment 2 is that the aeration mechanism provides air flow through the air pump 9, the cylinder of the air pump 9 is fixed on the shore, the piston of the air pump 9 is connected with the sliding sleeve 814, and the sliding sleeve 814 drives the piston to slide reciprocally in the cylinder during the process that the scraping driving assembly drives the scraping plate 821 to slide along the second sliding rod 822 towards the second dam 7 and the process that the spoiler 331 is driven to move away from the second dam 7 along the sliding rail 332.
More specifically, the aeration mechanism comprises an aeration main pipe 321 and a plurality of aeration branch pipes 322, wherein the aeration main pipe 321 is arranged in the ecological treatment tank 3 along the length direction of the ecological treatment tank 3, each aeration branch pipe 322 is communicated with the aeration main pipe 321 and is uniformly distributed in the ecological treatment tank 3, and preferably, each aeration branch pipe 322 is correspondingly distributed below each biological belt filler 31. The air outlet of the air pump 9 is connected with the aeration main pipe 321 in an airtight manner, so as to provide air flow for the aeration mechanism. Therefore, in the continuous rotation process of the crank 811 in the foam scraping driving assembly, the sliding sleeve 814 can do reciprocating linear motion along the first sliding rod 815, and the sliding sleeve 814 is connected with the piston of the air pump 9, so that the sliding sleeve 814 can drive the air pump 9 to perform inflation in the process, and the air flow inflated by the air pump 9 is connected to the main aeration pipe 321 to provide air flow for the aeration mechanism, so that the aeration effect is realized.
Based on this, in the ecological treatment system for factory aquaculture tail water provided by this embodiment, when the froth scraping driving component drives the froth scraping executing component to scrape the surface froth on the intermittent circulation of the water body in the ecological treatment tank 3, the sliding sleeve 814 also carries the piston of the air pump 9 to reciprocate in the cylinder, and performs the air charging action to provide air flow for the aeration mechanism, so that no additional power source is needed to be added for air supply of the aeration mechanism, so that the whole system is simpler and maintenance is more convenient.
Example 5:
This embodiment is based on embodiment 2, except that a stirring assembly is provided in the circulation tank 4, the stirring assembly including a stirring shaft 421 and a plurality of stirring paddles 422 provided on the stirring shaft 421, the stirring shaft 421 being driven to rotate by the power source, so that the power source rotates the crank 811 around the axis of the driving shaft while the stirring paddles 422 rotate around the axis of the stirring shaft 421 and agitate the water body in the circulation tank 4. Preferably, the stirring shaft 421 and the driving shaft are in power transmission through belt transmission or chain transmission.
Based on this, drive shaft pivoted power supply is when being used for driving to scrape the foam execution module and carry out surperficial foam to the intermittent type circulation of the water in the ecological treatment pond 3, still is used for driving the (mixing) shaft 421, and then realizes the stirring to the water in the circulation pond 4 for the further dissolved oxygen of the water in the circulation pond 4 is through the stirring effect to the water in the circulation pond 4, makes this water more be applicable to and throws into in the breed pond 1 again and be used for aquaculture.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. An ecological treatment system for industrial aquaculture tail water, comprising:
A culture pond (1), a sedimentation pond (2), an ecological treatment pond (3) and a circulating pond (4) which are sequentially lowered in height positions;
The cultivation pond (1) is communicated with the sedimentation pond (2) through a pipeline, a first dam body (6) is arranged between the sedimentation pond (2) and the ecological treatment pond (3), and a second dam body (7) is arranged between the ecological treatment pond (3) and the circulating pond (4); the circulating pool (4) is communicated with the culture pool (1) through a circulating pipeline (41); a first water outlet (61) is formed in one side, facing the ecological treatment tank (3), of the first dam (6), and a second water outlet (71) is formed in one side, facing the circulating tank (4), of the second dam (7);
the ecological treatment system also comprises a collection tank (5), wherein the collection tank (5) is lower than the ecological treatment tank (3);
The bottom of the sedimentation tank (2) is communicated with the ageing tank (5) through a sewage drain pipeline (51), and the first water outlet (61) is higher than the bottom of the sedimentation tank (2).
2. An ecological treatment system for industrial aquaculture tail water according to claim 1, wherein,
A plurality of biological band fillers (31) are arranged in the ecological treatment tank (3), and an aeration mechanism is arranged below each biological band filler (31) and is used for aerating the biological band filler (31).
3. An ecological treatment system for industrial aquaculture tail water according to claim 2, characterized in that,
The ecological treatment system further comprises a foam scraping mechanism, wherein the foam scraping mechanism comprises a foam scraping driving assembly and a foam scraping executing assembly, and the foam scraping driving assembly comprises a crank (811), a connecting rod (812), a rocker (813), a sliding sleeve (814) and a first sliding rod (815);
the first sliding rod (815) is fixedly arranged on the shore, and the sliding sleeve (814) is sleeved on the first sliding rod (815) and can slide along the first sliding rod (815); a shaft lever (8141) is arranged on one side of the sliding sleeve (814) close to the crank (811), a first stop pin (8142) and a second stop pin (8143) are arranged on one side of the sliding sleeve (814) far away from the crank (811), and the first stop pin (8142) is positioned above the second stop pin (8143);
One end of the crank (811) is fixed on a driving shaft, the driving shaft can rotate around the axis of the driving shaft under the driving action of a power source, the other end of the crank (811) is hinged with one end of the connecting rod (812), the other end of the connecting rod (812) is hinged with one end of the rocker (813), the other end of the rocker (813) is positioned between the first stop pin (8142) and the second stop pin (8143), and the middle part of the rocker (813) is hinged on the shaft lever (8141);
The foam scraping execution assembly comprises a scraping plate (821), a second sliding rod (822) and a first reset spring (823), wherein the second sliding rod (822) is fixed on the tank wall of the ecological treatment tank (3), the first reset spring (823) is sleeved on the second sliding rod (822), the scraping plate (821) is sleeved on the second sliding rod (822) in a sliding mode, and the scraping plate (821) is located above the biological belt filler (31);
The foam scraping driving assembly can drive the scraping plate (821) to slide towards the second dam body (7) along the second sliding rod (822), and the first reset spring (823) can drive the scraping plate (821) to be away from the second dam body (7) along the second sliding rod (822).
4. An ecological treatment system for industrial aquaculture tail water according to claim 3, characterized in that,
A collector Chen Cao (72) is arranged on one side, facing the circulating pool (4), of the second dam body (7), the collector Chen Cao (72) is higher than the second water outlet (71), and the collector Chen Cao (72) is communicated to the collection and ageing pool (5).
5. An ecological treatment system for industrial aquaculture tail water according to claim 3, characterized in that,
A turbulence assembly is further arranged in the ecological treatment tank (3), the turbulence assembly comprises a turbulence plate (331), a sliding rail (332) and a second reset spring (333), the sliding rail (332) is arranged on the tank wall of the ecological treatment tank (3), the second reset spring (333) is arranged in the sliding rail (332), the turbulence plate (331) is in sliding connection with the sliding rail (332), and the turbulence plate (331) is positioned between the biological belt filler (31) and the aeration mechanism;
The foam scraping driving assembly can drive the spoiler (331) to be away from the second dam body (7) along the sliding rail (332), and the second reset spring (333) can drive the spoiler (331) to slide towards the second dam body (7) along the sliding rail (332).
6. An ecological treatment system for industrial aquaculture tail water according to claim 5, wherein,
The aeration mechanism provides air flow through the air pump (9), the barrel of air pump (9) is fixed on the bank, the piston of air pump (9) with sliding sleeve (814) are connected, scrape foam drive assembly drive scraper blade (821) along second slide bar (822) is towards in-process that second dam (7) slided and drive spoiler (331) are along slide rail (332) are kept away from in-process that second dam (7), sliding sleeve (814) drive the piston is in reciprocating sliding in the barrel.
7. An ecological treatment system for industrial aquaculture tail water according to claim 3, characterized in that,
Be provided with stirring subassembly in circulation pond (4), stirring subassembly includes (421) and sets up a plurality of stirring rake (422) on this (421) stirring axle, (421) pass through power supply drive rotation, make the power supply when driving crank (811) rotate around the axis of this driving shaft, stirring rake (422) are around the axis rotation of (421) stirs the water in circulation pond (4).
8. An ecological treatment system for industrial aquaculture tail water according to claim 1, wherein,
And the first dam body (6) and the second dam body (7) are respectively provided with a filter packing layer, and the filter packing layers comprise at least one of gravel, sand, activated carbon, filter cloth, ceramsite and zeolite.
9. An ecological treatment system for industrial aquaculture tail water according to claim 1, wherein,
The first water outlet (61) is a strip-shaped water outlet arranged along the length direction of the first dam body (6), an impact bearing platform (34) is further arranged between the sedimentation tank (2) and the ecological treatment tank (3), the impact bearing platform (34) is higher than the ecological treatment tank (3), and water in the sedimentation tank (2) flows out through the first water outlet (61), then impacts on the impact bearing platform (34) and flows into the ecological treatment tank (3);
The second water outlet (71) is a strip-shaped water outlet arranged along the length direction of the second dam body (7), and water in the ecological treatment tank (3) directly enters the circulating tank (4) after flowing out through the second water outlet (71).
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