CN105766769A - Open pond recirculating aquaculture system - Google Patents
Open pond recirculating aquaculture system Download PDFInfo
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- CN105766769A CN105766769A CN201610341496.8A CN201610341496A CN105766769A CN 105766769 A CN105766769 A CN 105766769A CN 201610341496 A CN201610341496 A CN 201610341496A CN 105766769 A CN105766769 A CN 105766769A
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- 238000009360 aquaculture Methods 0.000 title abstract description 21
- 244000144974 aquaculture Species 0.000 title abstract description 21
- 230000003134 recirculating effect Effects 0.000 title abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 158
- 238000005273 aeration Methods 0.000 claims abstract description 54
- 238000004062 sedimentation Methods 0.000 claims abstract description 51
- 238000001179 sorption measurement Methods 0.000 claims abstract description 50
- 239000002351 wastewater Substances 0.000 claims abstract description 25
- 238000012258 culturing Methods 0.000 claims description 79
- 239000010865 sewage Substances 0.000 claims description 24
- 102000010637 Aquaporins Human genes 0.000 claims description 15
- 108010063290 Aquaporins Proteins 0.000 claims description 15
- 101710134207 Aquaporin A Proteins 0.000 claims description 11
- 238000005276 aerator Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000011282 treatment Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004064 recycling Methods 0.000 abstract 2
- 238000006213 oxygenation reaction Methods 0.000 abstract 1
- 238000009395 breeding Methods 0.000 description 12
- 230000001488 breeding effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 9
- 210000003608 fece Anatomy 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000010794 food waste Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to an open pond recirculating aquaculture system. The open pond recirculating aquaculture system comprises an aquaculture pond, a water treatment unit and a water pump, wherein the water outlet of the aquaculture pond is connected with the water inlet of the water treatment unit, the water outlet of the water treatment unit is connected with the water inlet of the water pump, and the water outlet of the water pump is connected with the water inlet of the aquaculture pond; the water treatment unit comprises a wastewater pretreatment tank, an adsorption sedimentation tank, a biological tank and a water recycling tank which are sequentially connected; the water inlet of the water pump is connected with the water recycling tank; the aquaculture pond comprises an aquaculture room, an aeration water pushing device, a fence baffle A and a dirt collecting device A are arranged in the aquaculture room, the fence baffle A is arranged between the aeration water pushing device and the dirt collecting device A, the aeration water pushing device is arranged at the upper stream in the aquaculture room, and the fence baffle A is arranged at the down stream of the aquaculture room. The open pond recirculating aquaculture system occupies small area, effective aquaculture area is large, and aquaculture water can be effectively treated and recycled; and the aeration water pushing device in the aquaculture pond can realize aeration and oxygenation effects and also can promote flow of the aquaculture water and effective collection of feed residue and excrement.
Description
Technical field
The present invention relates to water cultivation equipment technical field, particularly relate to a kind of open pond circulation water cultivating system.
Background technology
Along with the fast development of Chinese society economy, culture fishery has also stepped into the stage of fast development.Aqiuculrue is the aquaculture mode that China is traditional.Currently, traditional aquaculture pond is faced with a series of conspicuous contradictions and the problems such as aquaculture water resource environment worsens, breeding facility is aging, New technical use is delayed, the farming disease harms takes place frequently, security-hidden trouble increases.
Summary of the invention
It is desirable to provide open pond circulation water cultivating system, the residual bait feces in breeding water body can be removed, reduce the cultivation pressure to water resource environment.
For reaching above-mentioned purpose, the technical solution used in the present invention is as follows:
A kind of open pond circulation water cultivating system, including culturing pool, unit for treating water and water pump, the outlet of described culturing pool is connected with the water inlet of unit for treating water, and the outlet of described unit for treating water is connected with the water inlet of water pump, and the outlet of water pump is connected with the water inlet of culturing pool；Described unit for treating water includes the Wastewater Pretreatment pond, adsorption and sedimentation pond, biological tank and the back pool that are sequentially connected with；The water inlet of described water pump is connected with back pool；
Described culturing pool includes between cultivation, it is provided with aeration between cultivation and pushes away water device, fence baffle plate A and sewage collection system A, described fence baffle plate A is located at aeration and pushes away between water device and sewage collection system A, and described aeration pushes away water device and is located between cultivation upstream, and fence baffle plate A is located at the downstream between cultivation.
Preferably, described culturing pool has 3, described unit for treating water is positioned at the lower left of cultivating system, 3 culturing pools lay respectively at the left front of cultivating system, right front and right back, cultivating system is provided with a bottom blowdown canal, being provided with bottom blowdown pipe bottom described sewage collection system A, described bottom blowdown pipe connects with bottom blowdown canal；Described bottom blowdown canal is positioned at the right of left front culturing pool and unit for treating water, and described bottom blowdown canal is positioned at the left side of 2 culturing pools in right front and right back.
Preferably, the bottom of described culturing pool is higher than the bottom in Wastewater Pretreatment pond, the bottom in Wastewater Pretreatment pond is higher than the bottom in adsorption and sedimentation pond, the bottom in described adsorption and sedimentation pond is higher than the bottom of biological tank, the bottom of described biological tank is higher than the bottom of back pool, and the outlet of described culturing pool is higher than the water inlet in adsorption and sedimentation pond；
The outlet of left front culturing pool is towards unit for treating water, the outlet of right front and right back culturing pool is oppositely arranged, described Wastewater Pretreatment pond, adsorption and sedimentation pond, biological tank and back pool are arranged in parallel, and Wastewater Pretreatment pond, adsorption and sedimentation pond, biological tank are parallel with bottom blowdown canal with the orientation of back pool.
Further, described culturing pool also included aquaporin A and crossed aquaporin B, the described aquaporin A of mistake and cross aquaporin B and be respectively arranged on front side and the rear side of culturing pool, and described culturing pool includes between 2 cultivation, respectively B between A and cultivation between cultivation；Between cultivation, between A and cultivation, B parallel side-by-side is arranged；
Between described cultivation, between the water inlet of A with cultivation, the outlet of B all connects with aquaporin A excessively, between described cultivation, between the outlet of A with cultivation, the water inlet of B all connects with aquaporin B excessively, the described aquaporin A that crosses is connected with Wastewater Pretreatment pond by drain pipe, and described water pump is connected with crossing aquaporin A by return pipe.
Further, described sewage collection system A includes the pit bottom culturing pool and catching sheet A, and described catching sheet A is shorter than the pool wall of culturing pool, and catching sheet A is located on rear side of pit, and pit bottom is located at by described bottom blowdown pipe, and bottom blowdown pipe is provided with blowdown and controls device.
Further, described aeration pushes away water device and includes aeration tube, aerating device and catching sheet B, described catching sheet B is shorter than the pool wall of culturing pool thus being formed at catching sheet B top and pushing away the mouth of a river, the aeration opening of described aeration tube is placed in culturing pool and is positioned on front side of catching sheet B, the aeration opening of aeration tube is positioned at and pushes away below the mouth of a river, and the air inlet of described aeration tube is connected with the gas outlet of aerating device.
Further, described aerating device is air pump or aerator.
Further, described culturing pool top is provided with device of throwing something and feeding.
Further, between described cultivation, between A and cultivation, the bottom surface of B pushes away water device sloping downwardly in the direction to sewage collection system A from aeration.
Further, described pit is funnel type, and pit is provided with 3-5 at equal intervals.
Compared with prior art, the method have the advantages that
1. the present invention had both compared other circular water treating systems, and floor space is little, and effective cultured area is big, and breeding water body can be effectively addressed and recycle.
2. 3 culturing pools, 1 adsorption and sedimentation pond, 1 biological tank, 1 back pool be set, position, reasonable Arrangement each pond, rational in infrastructure.System integral module may be copied popularization, can zoom in or out in proportion, builds address treatment in accordance with local conditions, flexible and changeable.
3. in native system, aeration pushes away water device and had both played aeration oxygen replenishing effect, can play again promotion breeding water body flowing, promote the effect that food-residue and feces are effectively collected；
4. native system only needs to install a water pump at back pool, it is possible to allow whole system breeding water body circulate.The water of culturing pool enters Wastewater Pretreatment pond, arrive back pool again through adsorption and sedimentation pond and biological tank all adopts potential energy-dynamic, and therefore system energy consumption is low；
5. the connection combination of adsorption and sedimentation pond and biological tank, the removal efficiency of the particulate matter produce culturing pool and soluble pollutants (ammonia nitrogen, sub-salt) is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of culturing pool；
Fig. 3 is the structural representation of B between A and cultivation between cultivation；
Fig. 4 is the structural representation of unit for treating water；
Fig. 5 is the structural representation of adsorption and sedimentation pond and biological tank；
Fig. 6 is the structural representation in adsorption and sedimentation pond；
nullIn figure: 1-culturing pool、2-adsorption and sedimentation pond、3-biological tank、4-back pool、5-aeration pushes away water device、6-fence baffle plate A、7-sewage collection system A、8-bottom blowdown canal、9-bottom blowdown pipe、10-crosses aquaporin A、11-crosses aquaporin B、12-central dividing plate、A between 13-cultivation、B between 14-cultivation、15-water inlet、16-outlet、17-drain pipe、18-return pipe、19-pit、20-catching sheet A、21-blowdown controls device、22-aeration tube、23-aerating device、24-catching sheet B、25-pushes away the mouth of a river、26-throws something and feeds device、27-fence baffle plate B、28-Wastewater Pretreatment pond、29-sewage-collecting well、30-cross bar、31-elastic filter material、32-limbers、33-sewage draining exit、34-plug-pull tube、35-gap.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with accompanying drawing, the present invention is further elaborated.
As shown in Figure 1, 2, open pond circulation water cultivating system disclosed by the invention, including culturing pool 1, unit for treating water and water pump, unit for treating water includes the Wastewater Pretreatment pond 28, adsorption and sedimentation pond 2, biological tank 3 and the back pool 4 that are sequentially connected with；The outlet of culturing pool 1 is connected with the water inlet in adsorption and sedimentation pond 2, the outlet in adsorption and sedimentation pond 2 is connected with the water inlet of biological tank 3, the outlet of biological tank 3 connects with back pool 4, and the water inlet of water pump is connected with back pool 4, and the outlet of water pump is connected with the water inlet of culturing pool 1；Culturing pool 1 includes between cultivation, it is provided with aeration between cultivation and pushes away water device 5, fence baffle plate A6 and sewage collection system A7, fence baffle plate A6 is located at aeration and pushes away between water device 5 and sewage collection system A7, and aeration pushes away water device 5 and is located between cultivation upstream, and fence baffle plate A6 is located at the downstream between cultivation.Fence baffle plate A6 can stop that fish body will not stop again that sewage collection system A7 collects residual bait feces simultaneously.
Preferably, as shown in Figure 1, culturing pool 1 has 3, unit for treating water is positioned at the lower left of cultivating system, 3 culturing pools 1 lay respectively at the left front of cultivating system, right front and right back, cultivating system is provided with a bottom blowdown canal 8, is provided with bottom blowdown pipe 9 bottom described sewage collection system A7, and bottom blowdown pipe 9 connects with bottom blowdown canal 8；Bottom blowdown canal 8 is positioned at the right of left front culturing pool 1 and unit for treating water, and bottom blowdown canal 8 is positioned at the left side of 2 culturing pools 1 in right front and right back.Preferably, the bottom of culturing pool 1 is higher than the bottom in Wastewater Pretreatment pond 28, the bottom in Wastewater Pretreatment pond 28 is higher than the bottom in adsorption and sedimentation pond 2, the bottom in adsorption and sedimentation pond 2 is higher than the bottom of biological tank 3, the bottom of biological tank 3 is higher than the bottom of back pool 4, and the outlet of culturing pool 1 is higher than the water inlet in adsorption and sedimentation pond 2.The gravity relying on water body self from culturing pool 1 water out flows into Wastewater Pretreatment pond 28, adsorption and sedimentation pond 2, biological tank 3 and back pool 4 successively.The back pool 4 water in minimum position, back pool 4 is pumped in culturing pool 1 by water pump.The outlet of left front culturing pool 1 is towards unit for treating water, the outlet of right front and right back culturing pool 1 is oppositely arranged, Wastewater Pretreatment pond 28, adsorption and sedimentation pond 2, biological tank 3 and back pool 4 are arranged in parallel, and Wastewater Pretreatment pond 28, adsorption and sedimentation pond 2, biological tank 3 are parallel with bottom blowdown canal 8 with the orientation of back pool 4.Further, bottom blowdown canal 8 end is connected with sewage-collecting well 29.
Further, culturing pool 1 also included aquaporin A10 and crossed aquaporin B11, crosses aquaporin A10 and crosses aquaporin B11 and be respectively arranged on front side and the rear side of culturing pool 1, and culturing pool 1 includes between 2 cultivation, respectively B14 between A13 and cultivation between cultivation；Between cultivation, between A13 and cultivation, B14 parallel side-by-side is arranged, and further, between cultivation, between A13 and cultivation, B14 is separated by central dividing plate 12.Further, it is provided with, at culturing pool 1 top, device 26 of throwing something and feeding.Preferably, 1 culturing pool 1 is provided with 4 devices 26 of throwing something and feeding, and is respectively equipped with 2 devices 26 of throwing something and feeding between cultivation between A13 and cultivation on B14.
Between cultivation, between the water inlet 15 of A13 with cultivation, the outlet 16 of B14 all connects with aquaporin A10 excessively, between cultivation, between the outlet 16 of A13 with cultivation, the water inlet 15 of B14 all connects with aquaporin B11 excessively, cross aquaporin A10 to be connected with Wastewater Pretreatment pond 28 by drain pipe 17, water pump is connected with crossing aquaporin A10 by return pipe 18, water inlet 15 place that the outlet of return pipe 18 is positioned between cultivation A13, outlet 16 place that the water inlet of drain pipe 17 is positioned between cultivation B14.
Further, as shown in Figure 2,3, the structural representation of B14 between A13 and cultivation between cultivation, aeration pushes away water device 5 and includes aeration tube 22, aerating device 23 and catching sheet B24, catching sheet B24 is shorter than the pool wall of culturing pool 1 thus being formed at catching sheet B24 top and pushing away the mouth of a river 25, the aeration opening of aeration tube 22 is placed in culturing pool 1 and is positioned on front side of catching sheet B24, and the aeration opening of aeration tube 18 is positioned at and pushes away below the mouth of a river 25, and the air inlet of aeration tube 22 is connected with the gas outlet of aerating device 23.
Preferably, water inlet 15 is located at the bottom of culturing pool 1 front side wall, and further, aeration tube 22 is located at culturing pool 1 top, and the ending vertical of aeration tube 22 is downward.Further, aeration tube 22 exit end face is provided with intensive aperture.Further, the material of aeration tube 22 is PVC.Preferably, the aeration opening of aeration tube 22 is positioned at water inlet 15 place, and aeration tube 22 has arm, and the quantity of aeration opening is equal with the quantity of water inlet 15, and each water inlet 15 has an aeration opening.Water inlet 15 is arranged at equal intervals.Further, catching sheet B24 top vertical is provided with fence baffle plate B27.Further, aerating device 23 is air pump or aerator, and culturing pool 1 top placed by aerating device 23.Air is perpendicular to the water surface by aeration tube 22 and enters in water body, dissolved oxygen content rising, water body density in the breeding water body of solarization air cap region are diminished, and by the buoyancy of water body, this regional water knows from experience rising, then water body can pass through fence baffle plate B27 inflow culturing pool, is conducive to the exchange of breeding water body.Fence baffle plate B27 is possible to prevent garbage to enter culturing pool.Preferably, at least provided with 3 water inlets 4 between each cultivation.
Further, as shown in Figure 2,3, sewage collection system A7 includes the pit 19 bottom culturing pool and catching sheet A20, catching sheet A20 is shorter than the pool wall of culturing pool 1, catching sheet A20 is located on rear side of pit 19, and bottom blowdown pipe 9 is located at bottom pit 19, and bottom blowdown pipe 9 is provided with blowdown and controls device 21.Further, it is plug-pull tube that blowdown controls device 21, and the degree of depth of the length ratio culturing pool 1 that blowdown controls device 21 is long, and blowdown controls the external diameter of device 21 and is adapted for blocking bottom blowdown pipe 9 with bottom blowdown pipe 9 internal diameter.Further, catching sheet A20 is shorter than catching sheet B24.Outlet 16 is positioned at lower section on rear side of catching sheet A20, catching sheet A20 is possible to prevent the dirt in pit 19 to flow out from outlet 16 with water body, outlet 16 and fence baffle plate A6 be arranged in parallel, further, further, between cultivation, between A13 and cultivation, the bottom surface of B14 pushes away water device 5 sloping downwardly in the direction to sewage collection system A7 from aeration.There is bottom culturing pool 1 certain gradient, be conducive to the collection of breeding water body flowing and residual bait feces.Pit 19 can be bar shaped pit can also be the pit of funnel type.Further, present embodiment pits 19 is easy to the discharge of dirt for funnel type.Further, pit 19 is provided with 3-5 at equal intervals, and pit 19 arranges point-blank, and the orientation of pit 19 is parallel with fence baffle plate A6.The bottom of fence baffle plate A6 can be all connected with pit 19 top by the present invention with the bottom of catching sheet A20.As in figure 2 it is shown, culturing pool 1 is rectangle.Further, the material of blowdown control device 21 and aeration tube 22 is PVC.
Further, unit for treating water includes adsorption and sedimentation pond 2, the biological tank 3 that a word is arranged successively, adsorption and sedimentation pond 2 is divided between multiple adsorption and sedimentation, biological tank 3 is divided between multiple biological treatment, adsorption and sedimentation pond 3 is arranged between adsorption and sedimentation along current direction at least provided with 2, often drains between rare 3 adsorption and sedimentations；Biological tank 3 is arranged between biological treatment along current direction at least provided with 2, often drains between rare 3 biological treatments, is provided with limbers 32 between the adsorption and sedimentation of adjacent row and/or between biological treatment, is not communicated with between the adsorption and sedimentation of same row, between biological treatment.Further, limbers 32 is provided with flow regulator.Further, limbers 32 be located between adsorption and sedimentation, biological treatment between bottom.Preferably, arranging 2 in present embodiment between adsorption and sedimentation has row, and often row arranges 3；Arranging 2 rows between biological treatment, often row arranges 3.Unit for treating water so designs and makes aquaculture water treating capacity flexible, effectively reduce cost: water treatment system is laterally divided into three and above can the mini system of each self-operating, the area of water treatment system can be opened and closed according to cultivation amount flexibly, and the Contrast on effect research of filler and filtrate can be carried out.
Further, top is provided with gap 35 between adsorption and sedimentation and between biological treatment, and gap 35 and limbers 32 are on same sidewall.All having gap 35 in present embodiment above the pool wall of current direction is designed as, there is adjustable limbers 32 in middle lower floor.Breeding water is processed through process pond step by step by the limbers 32 of middle lower floor, and when the pending water yield is more, part breeding water can flow out by gap 35 from above.
Further, as shown in Figure 5,6, the bottom between adsorption and sedimentation and between biological treatment is infundibulate.Further, the bottom between adsorption and sedimentation and between biological treatment is equipped with sewage draining exit 33.Sewage draining exit 33 is located at minimum point.Further, also including plug-pull tube 34, the length of plug-pull tube 34 is more than the degree of depth in adsorption and sedimentation pond 2, biological tank 3, and the external diameter of plug-pull tube 34 at least one end is adaptive with the internal diameter of sewage draining exit 33, can be used for blocking sewage draining exit 7 during not blowdown.Sewage draining exit 33 is connected with bottom blowdown canal 8.Further, the cross section on top is square between adsorption and sedimentation and between biological treatment.
Further, the bottom of biological tank 3 is equipped with oxygen increasing tube.Further, as shown in Figure 6, vertically it is provided with column-shaped active carbon pipe between adsorption and sedimentation and/or is hung with elastic filter material 31；Added with biofilter material in biological tank.The top of elastic filter material 31 is connected with cross bar 30, and the bottom of elastic filter material 31 is free end, and cross bar 30 is horizontally set on Chi Ding, and cross bar 30 is vertical with water (flow) direction, conveniently operation and cleaning.Column-shaped active carbon pipe or be hung with elastic filter material 6 and primarily serve the bulky grain float retaining, settle and adsorbing in breeding wastewater.Adsorption and sedimentation pond 2 and biological tank 3 can arrange two-stage or multistage at current direction, and present embodiment divide into two-stage, two-stage Sedimentation tank 1 and biological tank 2 and all may select filtrate of the same race or not of the same race and different filling rates；Staged care can increase number of processes, strengthens filter effect.Constituting moving-bed bioreactor added with biofilter material in biological tank 2, filling rate reaches 50%-60%.Further, the farthest biological tank in adsorption and sedimentation pond 23 is by discharge outlet connection back pool 4, and discharge outlet is arranged on the sidewall away from adsorption and sedimentation pond 2 of biological tank 3.
Wastewater Pretreatment pond 28 is connected with between first row adsorption and sedimentation by the limbers 32 on front side wall between adsorption and sedimentation.Pushing away water device by aeration promotes culturing pool water body to circulate, and food-residue, feces in culturing pool are collected by sewage collection system.Breeding water body discharges to Wastewater Pretreatment pond, through adsorption and sedimentation pond and biological tank, its suspended particulate substance and soluble pollutants (ammonia nitrogen, sub-salt) are effectively removed, finally it is pooled in back pool, is withdrawn in culturing pool by water pump and recycles.
The present invention utilizes industrial circulating water technology and principle thereof that existing traditional pond carries out open cycle water system transformation, reaches the purpose of intensive, energy-saving and environmental protection, efficiently cultivation, the real sustainable development having accomplished environmentally friendly aquaculture industry.
Certainly; the present invention also can have other numerous embodiments; when without departing substantially from present invention spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and deformation according to the present invention, but these change accordingly and deformation all should belong to the scope of the claims appended by the present invention.
Claims (10)
1. an open pond circulation water cultivating system, it is characterized in that: include culturing pool (1), unit for treating water and water pump, the outlet of described culturing pool (1) is connected with the water inlet of unit for treating water, the outlet of described unit for treating water is connected with the water inlet of water pump, and the outlet of water pump is connected with the water inlet of culturing pool (1)；Described unit for treating water includes the Wastewater Pretreatment pond (28), adsorption and sedimentation pond (2), biological tank (3) and the back pool (4) that are sequentially connected with；The water inlet of described water pump is connected with back pool (4)；
Described culturing pool (1) includes between cultivation, it is provided with aeration between cultivation and pushes away water device (5), fence baffle plate A (6) and sewage collection system A (7), described fence baffle plate A (6) is located at aeration and is pushed away between water device (5) and sewage collection system A (7), described aeration pushes away water device (5) and is located between cultivation upstream, and the downstream between cultivation is located at by fence baffle plate A (6).
2. open pond circulation water cultivating system according to claim 1, it is characterized in that: described culturing pool (1) has 3, described unit for treating water is positioned at the left back of cultivating system, 3 culturing pools (1) lay respectively at the left front of cultivating system, right front and right back, cultivating system is provided with a bottom blowdown canal (8), described sewage collection system A (7) bottom is provided with bottom blowdown pipe (9), and described bottom blowdown pipe (9) connects with bottom blowdown canal (8)；Described bottom blowdown canal (8) is positioned at the right of left front culturing pool (1) and unit for treating water, and described bottom blowdown canal (8) is positioned at the left side of 2 culturing pools (1) in right front and right back.
3. open pond circulation water cultivating system according to claim 2, it is characterized in that: the bottom of described culturing pool (1) is higher than the bottom of Wastewater Pretreatment pond (28), the bottom in Wastewater Pretreatment pond (28) is higher than the bottom of adsorption and sedimentation pond (2), the bottom of described adsorption and sedimentation pond (2) is higher than the bottom of biological tank (3), the bottom of described biological tank (3) is higher than the bottom of back pool (4), and the outlet of described culturing pool (1) is higher than the water inlet of adsorption and sedimentation pond (2)；
The outlet of left front culturing pool (1) is towards unit for treating water, the outlet of right front and right back culturing pool (1) is oppositely arranged, described Wastewater Pretreatment pond (28), adsorption and sedimentation pond (2), biological tank (3) and back pool (4) are arranged in parallel, and Wastewater Pretreatment pond (28), adsorption and sedimentation pond (2), biological tank (3) are parallel with bottom blowdown canal (8) with the orientation of back pool (4).
4. open pond circulation water cultivating system according to claim 3, it is characterized in that: described culturing pool (1) also included aquaporin A (10) and crossed aquaporin B (11), described aquaporin A (10) excessively and excessively aquaporin B (11) are respectively arranged on front side and the rear side of culturing pool (1), and described culturing pool (1) includes between 2 cultivation: B (14) between A (13) and cultivation between cultivation；Between cultivation, between A (13) and cultivation, B (14) parallel side-by-side is arranged；
Between described cultivation, between the water inlet (15) of A (13) with cultivation, the outlet (16) of B (14) all connects with aquaporin A (10) excessively, between described cultivation, between the outlet (16) of A (13) with cultivation, the water inlet (15) of B (14) all connects with aquaporin B (11) excessively, the described aquaporin A (10) that crosses is connected with Wastewater Pretreatment pond (28) by drain pipe (17), and described water pump is connected with crossing aquaporin A (10) by return pipe (18).
5. the open pond circulation water cultivating system according to claim 1 or 4, it is characterized in that: described sewage collection system A (7) includes the pit (19) bottom culturing pool and catching sheet A (20), described catching sheet A (20) is shorter than the pool wall of culturing pool (1), catching sheet A (20) is located at pit (19) rear side, described bottom blowdown pipe (9) is located at pit (19) bottom, and bottom blowdown pipe (9) is provided with blowdown and controls device (21).
6. the open pond circulation water cultivating system according to claim 1 or 4, it is characterized in that: described aeration pushes away water device (5) and includes aeration tube (22), aerating device (23) and catching sheet B (24), described catching sheet B (24) is shorter than the pool wall of culturing pool (1) thus being formed at catching sheet B (24) top and pushing away the mouth of a river (25), the aeration opening of described aeration tube (22) is placed in culturing pool and is positioned at catching sheet B (24) front side, the aeration opening of aeration tube (18) is positioned at and pushes away lower section, the mouth of a river (25), the air inlet of described aeration tube (22) is connected with the gas outlet of aerating device (23).
7. open pond circulation water cultivating system according to claim 6, it is characterised in that: described aerating device (23) is air pump or aerator.
8. the open pond circulation water cultivating system according to claim 1,2 or 3, it is characterised in that: described culturing pool (1) top is provided with device of throwing something and feeding (26).
9. open pond circulation water cultivating system according to claim 4, it is characterised in that: between described cultivation, between A (13) and cultivation, the bottom surface of B (14) pushes away water device (5) sloping downwardly in the direction to sewage collection system A (7) from aeration.
10. open pond circulation water cultivating system according to claim 5, it is characterised in that: described pit (19) is funnel type, and pit (19) is provided with 3-5 at equal intervals.
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