CN108423926A - A kind of pond inner recirculation flow water breeding pollution object emission-reducing system - Google Patents
A kind of pond inner recirculation flow water breeding pollution object emission-reducing system Download PDFInfo
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- CN108423926A CN108423926A CN201810209251.9A CN201810209251A CN108423926A CN 108423926 A CN108423926 A CN 108423926A CN 201810209251 A CN201810209251 A CN 201810209251A CN 108423926 A CN108423926 A CN 108423926A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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Abstract
The invention discloses a kind of pond inner recirculation flow water breeding pollution object emission-reducing system, which includes：The big pool of one water body purification, one enhancing the isolation dam of big pool water cycle, one is arranged in the big pool cultivation flume for aquatic, one depositing the precipitation equipment of the solid waste in the cultivation flume, one shifts the absorption transfer device of the solid waste deposited in precipitation equipment to draw, one collects the collection separator that separation shifts the solid waste of water-outlet body through drawing transfer device, the compound bio grid means of retardation for the solid waste that one retardance is flowed out by precipitation equipment.The emission-reducing system of the present invention greatly improves solid waste in retardance cultivation flume and enters the efficiency on the outer pool, while ecological, environmental protective, will not cause secondary pollution；The collection separator of the present invention is divided into three-level, including the first processing pond, second processing pond and third processing pond, effectively removes the harmful substance in solid waste, and greatly improve separating effect.
Description
Technical field
The invention belongs to Water Ecological Recovery fields, and in particular to a kind of pond inner recirculation flow water breeding pollution object emission reduction system
System.
Background technology
Aquaculture tail water is agricultural area source dirt because the substances such as rich Nitrogen-and Phosphorus-containing easily cause culture zone surrounding body eutrophication
One of primary abatement object of dye.In recent years, China various regions realize aquatic products by developing cycle " water tank type " cultivation in pond
Transformation of the aquaculture from traditional " free-ranging " to " stable breeding ", greatly reduces the pollution of traditional culture fishery.It is recycled in pond
Why " water tank type " cultivation can reduce aquaculture pollution, and mainly fish are housed in a sink by it, and its rear end
Collecting solid castoff device is installed.
Currently, collecting solid castoff device connects a crystallizing field using in cultivating system rear end mostly, it is deposited on
The solid waste in this region transfers them to ground sedimentation basin by sewage suction device and realizes a section dirt.But in this area deposition
Solid waste account for about in pond recycle " water tank type " cultivating system generate solid waste total amount 42.5%-48.7%,
Remaining waste still enters the outer pool with flow, causes the nutrients such as outer pool water body nitrogen phosphorus exceeded, affects control to a certain extent
Water effect.Meanwhile existing ground sedimentation basin is limited to the treatment effect of solid waste, cause a large amount of solid suspensions still with
The outer spilling water of sedimentation basin causes body eutrophication into the outer pool.
Invention content
In view of this, the object of the present invention is to provide a kind of pond inner recirculation flow water breeding pollution object emission-reducing system, the pond
The collecting solid castoff of pool inner recirculation flow water breeding pollution object emission-reducing system is efficient, and section dirty effect is good, can greatly limit drop
The pollution of the external pool water quality of low pond inner recirculation flow water breeding pollution object emission-reducing system.
To achieve the goals above, the technical solution adopted by the present invention is that providing a kind of pond inner recirculation flow water breeding pollution
Object emission-reducing system, the pond inner recirculation flow water breeding pollution object emission-reducing system enhance big including a water body purification great Tang, one
The cultivation flume for aquatic, one is arranged in the big pool depositing the cultivation in the isolation dam of pool water cycle, one
The precipitation equipment of solid waste in sink, one are drawing the suction for shifting the solid waste deposited in the precipitation equipment
Take transfer device, one collect separation through it is described absorption transfer device shift water-outlet body solid waste collection separator,
The compound bio grid means of retardation for the solid waste that one retardance is flowed out by precipitation equipment.
Preferably, the front end of the cultivation flume is provided with pushes away water dispenser for make water flowing in the cultivation flume
And for the oxygen-increasing device to water oxygenation in the cultivation flume.
Preferably, the oxygen-increasing device includes liquid oxygen tower and the nanometer oxygen increasing tube that is connected to liquid oxygen tower.
Preferably, the compound bio grid means of retardation includes from top to bottom set gradually biological floating bed and is located at
The block piece of biological floating bed lower part.
Preferably, it is described it is biological floating bed on water plant be one kind in water spinach, anabena, oenanthe stolonifera etc. or
It is a variety of；The block piece is hanging on the biological floating bed lower part by hook perpendicular to water (flow) direction.
Preferably, the block piece is biological hairbrush and polyvinyl hydroformylation silk, and its lower end is connected with for ensureing it
The plummet of vertical distribution in water body.
Preferably, the absorption transfer device is dirt-dredging machine.
Preferably, on the precipitation equipment, between the precipitation equipment and compound bio grid means of retardation respectively
Lay a steel wire with pulley, the pulley can the steel wire described in the drive lower edge of a draft gear it is reciprocating.
Preferably, a soil pick-up cover, the above pipeline of the water surface is disposed to be connected to the steel at the pipeline opening of the dirt-dredging machine
On the pulley of silk.
Preferably, the collection separator includes：First processing pond, first processing pond is interior to lay an acceleration
The aerator of the decomposition of organic pollution in the filtering dam of solid waste precipitation and a quickening solid waste；Second processing
Pond, filled with biological hairbrush or microorganism filter bulb in the second processing pond；Third processing pond, the third processing pond is by bottom
It is equipped with stone layer, sand layer successively to top, the sand layer on kind is implanted with the emergent aquactic plants such as canna, iris to form one
Artificial swamp；Wherein, first processing pond and second processing pond by be opened on the first processing pond side wall first
Overfall be connected to, between the second processing pond and third processing pond by be opened on the side wall of the second processing pond second
Overfall is connected to.
The pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention is provided with multiple in the rear end of existing collection system
Symphysis object grid means of retardation, compound bio grid means of retardation include from top to bottom set gradually biological floating bed and floating positioned at ecology
Bed lower part block piece, greatly improve retardance solid waste enter the outer pool efficiency, while ecological, environmental protective, will not cause it is secondary
Pollution；Solid waste into the big pool can be used as the bait that freshwater shrimp is cultivated in the big pool, without in addition launching bait；Great Tang with it is outer
It is provided with filtering dam between river, has advanced optimized the water quality into outer river；The collection separator of the present invention is divided into three-level,
Including the first processing pond, second processing pond and third processing pond, the harmful substance in solid waste, and pole are effectively removed
Limits improve separating effect.
Description of the drawings
Fig. 1 is the structural schematic diagram of the pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention；
Fig. 2 is the structural schematic diagram of the absorption transfer device of the pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention；
Fig. 3 is the structural schematic diagram of the collection separator of the pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention；
Fig. 4 is that the structure of the compound bio grid means of retardation of the pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention is shown
It is intended to.
Wherein, the big pools 100-, 200- isolation dams, 300- cultivation flumes, 310- push away water dispenser, 320- oxygen-increasing devices, 321- liquid
Oxygen column, 322- nanometer oxygen increasing tubes, 400- precipitation equipments, 500- draw transfer device, 510- steel wires, 511- pulleys, 520- tractions
Device, 530- soil pick-up covers, 600- collect separator, the first processing ponds of 610-, and 611- filters dam, 612- aerators, 613-
First overfall, 620- second processings pond, the second overfalls of 621-, 630- third processing ponds, 631- stone layers, 632- sands
Layer, 633- emergent aquactic plants, 700- compound bio grid means of retardation, 710- is biological floating bed, 720- block pieces, 730- hooks, 740-
Plummet.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Referring to Fig. 1, the pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention includes the big pool of a water body purification
100, one to enhance the isolation dam 200, one of big pool water cycle be arranged in the big pool cultivation flume 300 for aquatic,
One deposits to deposit the precipitation equipment 400, one of the solid waste in cultivation flume to draw in transfer precipitation equipment 400
Solid waste draw transfer device 500, one collect separation through draw transfer device 500 shift water-outlet body solid waste
The collection separator 600, one of object blocks the compound bio grid means of retardation of the solid waste flowed out by precipitation equipment 400
700。
The front end of cultivation flume 300 be provided with for make water flowing in cultivation flume 300 push away water dispenser 310 and for pair
The oxygen-increasing device 320 of water oxygenation in cultivation flume.Oxygen-increasing device 320 includes that liquid oxygen tower 321 and the nanometer being connected to liquid oxygen tower increase
Oxygen pipe 322.The openning that the outlet of nanometer oxygen increasing tube 322 has countless apertures superfine.From receiving after liquid oxygen gasification in liquid oxygen tower 321
The outlet of rice oxygen increasing tube 322 sprays in water, can effectively improve the dissolved oxygen in water.The bottom surface of cultivation flume 300 is inclined
Shape, the depth of front end are less than the depth of rear end.Water enters cultivation flume 300 under the action of pushing away water dispenser 310, by cultivation flume
300 front end flows into, and then rear end is flowed out.Since there is fish stream habit of tracing back, fish body to be in sink upstream, cultivation flume 300
Bottom surface is oblique, and solid waste slowly caudad moves under flow action, and after being deposited on and being set to cultivation flume 300
In the precipitation equipment 400 at end.
Precipitation equipment 400 is spaced apart with cultivation flume 300 by an anti-escape network, the specification of precipitation equipment 400 can be long 3m,
Wide 5m is equipped with a vertical retaining wall, the high 60cm of barricade in one end far from cultivation flume.
It please refers to Fig.1 and Fig. 2, compound bio grid means of retardation 700 is arranged in the rear end of precipitation equipment 400, is filled with deposition
400 interval 3-4m are set, the water that deposited device 400 flows out enters compound bio grid means of retardation 700.Referring to Fig. 4, compound life
Object grid means of retardation 700 is made of waterborne and underwater two parts, including from top to bottom set gradually biological floating bed 710 and be located at
The block piece 720 of biological floating bed 710 lower part.Kind is implanted with water plant water spinach, anabena, oenanthe stolonifera on biological floating bed 710
It is one or more in.The water plants well developed root system such as water spinach, anabena, oenanthe stolonifera, increment is big, and vitality is strong, right
The adaptability of environment is good, all relatively abundanter to the absorption of nitrogen and phosphorus, potassium, can greatly absorb the pollutions such as the nitrogen phosphorus in water body
Object.
Biological floating bed 710 lower part is being provided with the hook 750 for hanging block piece 720 in water (flow) direction,
Block piece 720 is suspended on hook 750, forms the blocking zone of the suspended material in a retardance water body.Block piece 720 can be biology
Hairbrush and polyvinyl hydroformylation silk or its analog.The quality of substance of this kind is generally relatively light, it is floated with flow in order to prevent, is being hindered
The lower end of stagnant part 720 is connected with the plummet 760 for ensureing its vertical distribution in water body.720 one side of block piece can have
Suspended material in effect retardance water body, is on the other hand conducive to the attachment and growth of a microorganism, pollutant can be accelerated to convert.
The big pool 100 is interior, outer kind of cultivation flume 300 is implanted with water plant, and it is inorganic can largely to absorb nitrogen, phosphorus in water body etc.
Object, being cultivated in water plant has freshwater shrimp, and freshwater shrimp in cultivation flume 300 via precipitation equipment, compound bio grid to finally flow into
Solid waste in the big pool 100 is bait, is no longer needed in the big pool 100 as freshwater shrimp bait throwing in, and the water phase in the big pool 100 is compared with tradition
Aquaculture model pond water water quality want it is excellent very much, reach can discharge standard, even cultivation flume 300 in cultivate aquatic products
When being bought and sold, water need to be discharged, water at this time is also up to standard.It is additionally provided in the big pool 100 and increases its interior dissolved oxygen amount
Aerator and push water body flow, increase water cycle push away water dispenser.
One filtering dam of setting, filters dam width 2.5m, length is according to the width in gutter greatly between the pool 100 and outer river
Fixed, the water in the big pool 100 enters outer river after filtering dam.Filtering dam can further filter the water into outer river.
Solid waste in the cultivation flume 300 of the embodiment of the present invention is deposited on precipitation equipment 400 and precipitation equipment 400
With the region between compound bio grid means of retardation 700, absorption transfer device 500 need to be used to transfer them to floor treatment.This
The absorption transfer device 500 of inventive embodiments is dirt-dredging machine.It is useless in order to more effectively shift the solid deposited in precipitation equipment 200
Gurry, dirt-dredging machine is using mobile.Referring to Fig. 2, realized especially by following form：On precipitation equipment 400, deposition
A steel wire 510 with pulley 511 is laid between device 400 and compound bio grid means of retardation 700 respectively, pulley 511 can led
Reciprocating along steel wire 510 under the drive of leading-in device 520, the above pipeline of the water surface of dirt-dredging machine is connected to the pulley of steel wire 510
On 511.Draft gear 520 is moved with movable pulley 511 along steel wire 510, to drive the pipeline of dirt-dredging machine to move.Pacify at pipeline opening
A soil pick-up cover 550 is set, soil pick-up cover 550 is opened type, can increase the contact area with solid waste.The dirt-dredging machine of the present invention
Soil pick-up pump in water surface arrangement above, it is not high to waterproof requirement, certain cost can be saved.
Referring to Fig. 3, the collection separator 600 of the cultivation flume of the embodiment of the present invention, which is three-level, collects separator,
Including the first processing pond 610, second processing pond 620 and third processing pond 630.The intermediate arrangement of first processing pond 610 one
Dam 611 is filtered, the first processing pond 610 is divided into two, high degree accelerating solid waste precipitation.Filtering dam 611 can be with
Regard a pond for filling up haydite as, there are two effects for haydite tool：First effect is haydite as a kind of porous mass sheet
Body has the function of absorption；Second effect, which is the bacterium in water, to form biomembrane, this biology in the surfaces externally and internally of haydite
Film has certain water purification effect.Accessing pending water is flowed into from the one end on filtering dam 611, after the processing of haydite, from the other end
Outflow, accelerating solid waste have haved the function that purifying water body while precipitation.In the first processing pond 610 close to second processing
620 side of pond is provided with an aerator 612, and very big limit promotes the oxygenolysis of organic pollution.In second processing pond 620
Filled with biological hairbrush or microorganism filter bulb, be conducive to the characteristic of microorganism attachment and growth using it, accelerate organic in waste water
The decomposition of pollutant.Third processing pond 630 is equipped with stone layer 631, sand layer 632, stone layer 631 successively by bottom to top
It is laid with by the stone of different-grain diameter, 632 thickness of sand layer is about that 20cm or so is laid on stone layer 631, in sand layer
Kind is implanted with the emergent aquactic plants such as canna, iris 633 on 632, and third processing pond 630 forms artificial swamp and sand filtration effect, can have
The decomposition of effect utilizes pollutant.Also be laid with recoiling device in the bottom of third processing pond 630, so as to when being blocked can and
Shi Fanchong is cleaned, and ensures the work well of third processing pond 630.First processing pond 610 is with second processing pond 620 by being opened in
The first overfall 613 connection on first processing pond, 610 side wall, by opening between second processing pond 620 and third processing pond 630
The second overfall 621 connection on 620 side wall of second processing pond, there is the drop of 10-20cm between each processing pond, and first
621 long 30-50cm of overfall 613 and the second overfall.By the solid waste of water body extraction successively via the first processing pond
610, second processing 620, the processing of third processing pond 630.
The total volume of the collection separator 600 of the embodiment of the present invention is about daily collect waste waste water 7-8 times, the
The volume about of the total volume 40% of one processing pond 610, the volume about of the total volume 30% in second processing pond 620, third processing
The volume in pond 630 about of the total volume 30%.
The pond inner recirculation flow water breeding pollution object emission-reducing system of the present invention is provided with multiple in the rear end of existing collection system
Symphysis object grid means of retardation 700, compound bio grid means of retardation 700 include biological floating bed 710 He from top to bottom set gradually
Block piece 720 positioned at biological floating bed 710 lower part greatly improves the efficiency that retardance solid waste enters the big pool 100, raw simultaneously
State environmental protection will not cause secondary pollution；Solid waste into the big pool 100 can be used as the bait of cultivation freshwater shrimp in the big pool 100,
Without in addition launching bait；It is provided with filtering dam between the pool 100 and outer river greatly, has advanced optimized the water quality into outer river；
The collection separator 600 of the present invention divides for three-level, including the first processing pond 610, second processing pond 620 and third processing pond
650, the harmful substance in solid waste is effectively removed, and greatly improve separating effect.
Although some specific embodiments of the present invention are described in detail by example, the skill of this field
Art personnel it should be understood that above example merely to illustrate, the range being not intended to be limiting of the invention, belonging to the present invention
Those skilled in the art can make various modifications or additions to described specific embodiment or use class
As mode substitute, but without departing from the direction or beyond the scope of the appended claims of the present invention.Ability
Domain it is to be understood by the skilled artisans that it is every according to the technical essence of the invention to made by embodiment of above it is any modification, etc.
With replacement, improvement etc., protection scope of the present invention should be included in.
Claims (10)
1. a kind of pond inner recirculation flow water breeding pollution object emission-reducing system, which is characterized in that including：The big pool of one water body purification
（100）, one enhancing the big pool（100）The isolation dam of water cycle（200）, one be arranged on the big pool（100）It is interior to be used to cultivate
The cultivation flume of aquatic products（300）, one depositing the cultivation flume（300）In solid waste precipitation equipment（400）、
One shifts the precipitation equipment to draw（400）The absorption transfer device of the solid waste of interior deposition（500）, one collect point
From through the absorption transfer device（500）Shift the collection separator of the solid waste of water-outlet body（600）, one retardance by sinking
Product device（400）The compound bio grid means of retardation of the solid waste of outflow（700）.
2. pond inner recirculation flow water breeding pollution object emission-reducing system as described in claim 1, it is characterised in that：The cultivation water
Slot（300）Front end be provided with for making the cultivation flume（300）Middle water flowing pushes away water dispenser（310）And for described
Cultivation flume（300）The oxygen-increasing device of middle water oxygenation（320）.
3. pond inner recirculation flow water breeding pollution object emission-reducing system as claimed in claim 2, it is characterised in that：The oxygenation dress
It sets（320）Including liquid oxygen tower（321）With with liquid oxygen tower（321）The nanometer oxygen increasing tube of connection（322）.
4. pond inner recirculation flow water breeding pollution object emission-reducing system as described in claim 1, it is characterised in that：The compound life
Object grid means of retardation（700）Including biological floating bed（710）With positioned at biological floating bed（710）The block piece of lower part（720）.
5. pond inner recirculation flow water breeding pollution object emission-reducing system as claimed in claim 4, it is characterised in that：The ecology is floating
Bed（710）On water plant be one or more in water spinach, anabena, oenanthe stolonifera etc.；The block piece（720）Pass through
Hook（730）It is described biological floating bed being hung on perpendicular to water (flow) direction（710）Lower part.
6. pond inner recirculation flow water breeding pollution object emission-reducing system as claimed in claim 4, it is characterised in that：The block piece
（720）For biological hairbrush and polyvinyl hydroformylation silk, and its lower end is connected with the plummet for ensureing its vertical distribution in water body
（740）.
7. pond inner recirculation flow water breeding pollution object emission-reducing system as described in claim 1, it is characterised in that：Described draw turns
Moving device（500）For dirt-dredging machine.
8. pond inner recirculation flow water breeding pollution object emission-reducing system as claimed in claim 7, it is characterised in that：In the deposition
Device（400）Upper, described precipitation equipment（400）With compound bio grid means of retardation（700）Between lay respectively one band pulley
（511）Steel wire（510）, the pulley（511）It can be in a draft gear（520）Drive lower edge described in steel wire（510）Make past
Multiple movement.
9. pond inner recirculation flow water breeding pollution object emission-reducing system as claimed in claim 8, it is characterised in that：The dirt-dredging machine
Pipeline opening at dispose a soil pick-up cover（530）, the above pipeline of the water surface is connected to the steel wire（510）Pulley（511）On.
10. pond inner recirculation flow water breeding pollution object emission-reducing system as described in claim 1, it is characterised in that：The collection
Separator（600）Including：
First processing pond（610）, first processing pond（610）The interior filtering dam for laying accelerating solid waste precipitation
（611）The aerator for accelerating the decomposition of organic pollution in solid waste with one（612）；
Second processing pond（620）, the second processing pond（620）It is interior to be filled with biological hairbrush or microorganism filter bulb；
Third processing pond（630）, the third processing pond（630）Stone layer is equipped with by bottom to top successively（631）, sand
Layer（632）, the sand layer（632）Upper kind be implanted with the emergent aquactic plants such as canna, iris（633）To form an artificial swamp；
Wherein, first processing pond（610）With second processing pond（620）By being opened in first processing pond（610）Side
The first overfall on wall（613）Connection, the second processing pond（620）With third processing pond（630）Between by being opened in
The second processing pond（620）The second overfall on side wall（621）Connection.
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| CN110627274A (en) * | 2019-09-24 | 2019-12-31 | 舟山市海大科学技术研究院有限责任公司 | Aquaculture wastewater treatment device and treatment method |
| CN112335596A (en) * | 2020-11-03 | 2021-02-09 | 安徽省农业科学院水产研究所 | Pond engineering circulating water zero-discharge culture system |
| CN113415953A (en) * | 2021-07-14 | 2021-09-21 | 贵州大学 | Mountain area sloping field flowing water culture tail water treatment system |
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| CN110372158A (en) * | 2019-08-23 | 2019-10-25 | 中国水产科学研究院淡水渔业研究中心 | A kind of system and method for pond engineering circulating water cultivation tail water centralized processing |
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| CN112335596B (en) * | 2020-11-03 | 2022-03-18 | 安徽省农业科学院水产研究所 | Pond engineering circulating water zero-discharge culture system |
| CN113415953A (en) * | 2021-07-14 | 2021-09-21 | 贵州大学 | Mountain area sloping field flowing water culture tail water treatment system |
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