CN103503815B - Circuit-type fishpond breeding system integrating circulating water treatment process - Google Patents
Circuit-type fishpond breeding system integrating circulating water treatment process Download PDFInfo
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- CN103503815B CN103503815B CN201310479971.4A CN201310479971A CN103503815B CN 103503815 B CN103503815 B CN 103503815B CN 201310479971 A CN201310479971 A CN 201310479971A CN 103503815 B CN103503815 B CN 103503815B
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Abstract
The invention relates to a circuit-type fishpond breeding system integrating a circulating water treatment process. The circuit-type fishpond breeding system integrating the circulating water treatment process comprises a fishpond shaped like an annular runway, and sewage treatment systems arranged in an inner ring of the fishpond. Each sewage treatment system comprises a vertical flow type solid-liquid separator (1), wherein a sewage discharging groove (5) perpendicular to the water flow direction is formed in the bottom of the fishpond and communicated with an inlet of the vertical flow type solid-liquid separator (1), an outlet of the vertical flow type solid-liquid separator (1) is communicated with a micro-filtration machine (2), outlet water of the micro-filtration machine (2) adopts a water pump (3) and a water lifting pipe (4) for water lifting and is injected into a biological filter (6), the biological filter (6) is separated from an aeration oxygenation pond (8) through a separation plate and is communicated with the aeration oxygenation pond (8) through a through hole in the lower portion of the separation plate, a water falling pipe (7) is arranged on the lateral wall of the aeration oxygenation pond (8) and communicated with the fishpond, and the water outlet direction at the bottom of the water falling pipe (7) is the same as the water flow direction of the fishpond. The number of the sewage treatment systems is two, and the sewage treatment systems are evenly distributed in the inner ring of the annular fishpond in a central symmetry mode.
Description
Technical field
The present invention relates to a kind of loop-type fishpond cultivating system, specifically, is a kind of loop-type fishpond cultivating system of integrated circulating water treatment process.
Background technology
Fishpond is as the habitat of breeding fish, and in the cultivation of industrialization closed recirculating, its function then not to the utmost in this, still has: remove the organic collection dirt, discharging pollution functions such as residual bait, ight soil in time; In time the water body of LDO content is discharged or oxygenation in time; In time the water body of high carbon dioxide, high ammonia-nitrogen content drained into relevant water treatment facilities or remove in time; The function of operations such as being convenient to classification, fishing for, throw something and feed.
Racetrack fishpond is divided into straight way formula and loop-type fishpond, is usually used in the cultivation of salmon trout.Compared with circle pond, it is high and fish for point fish etc. and operate more conveniently advantage that racetrack fishpond has water surface for aquaculture availability; Its major defect is self-cleaning pollution discharge capability difference and water quality uneven (DO, ammonia nitrogen etc.), needs large water gaging to keep water quality.Be exactly that water inlet water quality is best specifically, and water side water quality is the poorest; From blowdown poor performance, frequent flushing is needed to remove contamination and regular maintenance.This is because the design of waterpower flow velocity is non-self blowdown demand (15-30cm/s) based on dissolved oxygen demand (2-4cm/s), causes actual motion flow velocity very low.Because the two gap is huge, in design, usually improve Peak Flow Rate based on minimizing the zone of intersection.Therefore many racetrack fishponds are run to become the form of series, and the water inlet of downstream raceway pond is done in the water outlet of upstream raceway pond, builds oxygenation simultaneously, removes the facilities such as carbonic acid gas between upstream and downstream fishpond.Inner lead (being separated by grid and culture zone) is set at the end in racetrack fishpond simultaneously and removes precipitating organic matters, and by vavuum pump blowdown.This be existing racetrack fishpond organics removal to reach the major way of discharge standard, need to spend a large amount of labour simultaneously.In production practices, the water volume flow rate in racetrack fishpond is well below physiological ecological demands such as healthy fish, muscle and breathings.Even if adopt lower water volume flow rate and water body exchange rate, the application of racetrack fishpond cultivation is also very limited, because it consumes the water source of a large amount of good water quality and produces a large amount of aquaculture wastewater, can bring serious environmental influence.
Summary of the invention
The technical issues that need to address of the present invention are: existing loop-type fishpond, and self-purification capacity is low; Purification process needs the labour of at substantial; Water body environment is well below physiological ecological demands such as healthy fish, muscle and breathings; Water body exchange rate is high, and the water source consuming a large amount of good water quality produces a large amount of aquaculture wastewaters, brings serious environmental influence.
The present invention takes following technical scheme:
A loop-type fishpond cultivating system for integrated circulating water treatment process, is characterized in that: the fishpond comprising runway shape ringwise, and is located at the sewage disposal system in its inner ring; Described sewage disposal system comprises vertical-flow solid-liquid separator 1, is provided with the dirt discharge groove 5 vertical with water (flow) direction bottom fishpond, and with the inlet communication of described vertical-flow solid-liquid separator 1; Described vertical-flow solid-liquid separator 1 outlet is communicated with Microfilter 2, the water outlet of described Microfilter 2 adopts water pump 3 and water lift pipe 4 water lift, and inject biofilter 6, described biofilter 6 is separated by dividing plate with aeration oxygen replenishing pond 8, and be communicated with by the through hole of the lower partition, aeration oxygen replenishing pond 8 sidewall arranges downpipe 7, and described downpipe 7 is communicated with fishpond, and bottom downpipe 7, the water (flow) direction in water outlet direction and fishpond in the same way; Described sewage disposal system is provided with two covers, and being centrosymmetric in the inner ring in annular fishpond is evenly arranged.
The feature of the technical program is: bottom fishpond, arrange dirt discharge groove, the fixing foreign material such as the ight soil of fish are made to flow in vertical-flow solid-liquid separator along certain current, vertical-flow solid-liquid separator removes the solid impurity of larger particles, first step purification is carried out to current, by Microfilter, second step purification is carried out to current again, now adopt water pump and water lift pipe again, water is carried in the biofilter exceeded from lower, carry out the 3rd step purification, flow in aeration oxygen replenishing pond at the through hole by the lower partition, aeration increases pond and carries out aeration oxygen replenishing to water body, finally by downpipe, the water in aeration oxygen replenishing pond is fallen in fishpond, current fall from exceeding, there is certain kinetic energy, downpipe bottom design becomes elbow, elbow is oriented the flow direction of current in fishpond, so, top-down for current kinetic transformation is become the kinetic energy of lateral flow, downpipe is that fishpond water circulation provides power.Sewage disposal system is centrosymmetric layout in the inner ring of circuit, optimizes the structure of fishpond of the present invention cultivating system further, strengthens flow dynamic and clean-up effect.
Further, described circuit comprises pair of parallel straight way, and the semicircle bend of a pair symmetry.
Further, described dirt discharge groove 5 is arranged at the turning at two ends, fishpond.
Further, bottom described vertical-flow solid-liquid separator 1, be provided with funnelform sewage draining exit, and pass through unlatching or the closedown of Valve controlling sewage draining exit.
Further, the height of described water lift pipe 4 is about 200-500mm in the height of downpipe 7.
Beneficial effect of the present invention is:
1) integrate plug-flow, physical filtering, oxygenation, carbon dioxide removal, biofiltration and loop-type fishpond to design, form small-sized circulating water cultivating system, complete function, designs ingenious;
2) promote that dissolved oxygen, ammonia nitrogen, carbonic acid gas etc. are uniformly distributed in water body, improve the water body homogenieity in loop-type fishpond;
3) compared with conventional loop-type fishpond, the present invention forms plug-flow effect by water circulation, and water volume flow rate becomes adjustable within the specific limits, improves hydraulic condition and the water body fluidised form in loop-type fishpond, discharges residual bait ight soil fast in time; Reduced the consumption of the water yield by the improvement of water quality, maintain certain water volume flow rate simultaneously and can promote fish skeleton development and healthy growth;
4) build a set of special collection by devices such as dirt discharge groove, vertical-flow equipment for separating liquid from solid, Microfilters and be separated the organic technological processes such as residual bait ight soil, easy, efficient collection and discharge organic matter, and simply easy to maintenance;
5) by the oxygenation of circulating water culture system, logistics filtration, biofiltration and degassed, improve water quality, thus reduce water consumption, 90% can be economized on water;
6) idle area is made full use of in pond as water treatment zone, the vertical-flow solid-liquid separator of reasonable disposition, Microfilter, biofilter, aeration oxygen replenishing pond etc., improve and strengthen fishpond treatment function, building easy circulating water culture system based on circuit fishpond, improve land utilization rate.
7) by the advantage of loop-type fishpond and cycle water water treatment technological process in one, form the fishpond cultivating system with certain Inner eycle water treatment capacity, each fishpond has certain independence and flexibility.
8) fishpond has oxygenation, degassed, physical filtering and biofiltration function, by removing the organic matters such as residual bait ight soil timely rapidly, being reduced the consumption of the water yield, improve water body fluidised form simultaneously by the improvement of water quality, promote healthy fish growth.
9) fishery harvesting is fished for, the classification of fish body, bait throwing in, parent population are hastened parturition etc., and complex operations adaptability for working condition is good.
10) be applicable to most fish adult fish or parent population cultivation, be particularly useful for the high density intensive culture of the swim fish such as salmon trout, also can be used for other relevant cultivation fields.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the loop-type fishpond cultivating system of the integrated circulating water treatment process of the present invention.
Fig. 2 is the vertical view of the loop-type fishpond cultivating system of the integrated circulating water treatment process of the present invention.
Fig. 3 be in Fig. 2 A-A to cutaway view.
Fig. 4 is the front view of the loop-type fishpond cultivating system of the integrated circulating water treatment process of the present invention.
Fig. 5 be in Fig. 2 B-B to cutaway view.
In figure, 1. vertical-flow solid-liquid separator, 2. Microfilter, 3. water pump, 4. water lift pipe, 5. dirt discharge groove, 6. biofilter, 7. downpipe, 8. aeration oxygen replenishing pond.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Together see Fig. 1-5, a kind of loop-type fishpond cultivating system of integrated circulating water treatment process, is characterized in that: the fishpond comprising runway shape ringwise, and is located at the sewage disposal system in its inner ring; Described sewage disposal system comprises vertical-flow solid-liquid separator 1, is provided with the dirt discharge groove 5 vertical with water (flow) direction bottom fishpond, and with the inlet communication of described vertical-flow solid-liquid separator 1; Described vertical-flow solid-liquid separator 1 outlet is communicated with Microfilter 2, the water outlet of described Microfilter 2 adopts water pump 3 and water lift pipe 4 water lift, and inject biofilter 6, described biofilter 6 is separated by dividing plate with aeration oxygen replenishing pond 8, and be communicated with by the through hole of the lower partition, aeration oxygen replenishing pond 8 sidewall arranges downpipe 7, and described downpipe 7 is communicated with fishpond, and bottom downpipe 7, the water (flow) direction in water outlet direction and fishpond in the same way; Described sewage disposal system is provided with two covers, and being centrosymmetric in the inner ring in annular fishpond is evenly arranged.
Bottom fishpond, dirt discharge groove is set, the fixing foreign material such as the ight soil of fish are made to flow in vertical-flow solid-liquid separator along certain current, vertical-flow solid-liquid separator removes the solid impurity of larger particles, first step purification is carried out to current, by Microfilter, second step purification is carried out to current again, now adopt water pump and water lift pipe again, water is carried in the biofilter exceeded from lower, carry out the 3rd step purification, aeration oxygen replenishing pond achieves aeration oxygen replenishing, finally by downpipe, the water in aeration oxygen replenishing pond is fallen in fishpond, current fall from exceeding, there is certain kinetic energy, downpipe bottom design becomes elbow, elbow is oriented the flow direction of current in fishpond, so, top-down for current kinetic transformation is become the kinetic energy of lateral flow, downpipe is that fishpond water circulation provides power.Sewage disposal system is arranged symmetrically in the inner ring of circuit, optimizes the structure of fishpond of the present invention cultivating system further, strengthens flow dynamic and clean-up effect.
Funnelform sewage draining exit is provided with bottom described vertical-flow solid-liquid separator 1, and pass through unlatching or the closedown of Valve controlling sewage draining exit, regularly can be got rid of the solid dirt such as sewage and ight soil by this sewage draining exit, simultaneously can to injecting clean water source in fishpond.
The height of described water lift pipe 4 is a little more than the height of downpipe 7, and water is injected biofilter 6 from top to bottom by water lift pipe, and when biofilter 6 water surface reaches the height of downpipe 7, the water in biofilter falls from downpipe 7, injects fishpond.
The present embodiment will arrange guiding gutter at turning, two ends, fishpond, dirt will be guided to vertical-flow equipment for separating liquid from solid and remove in time; By water pump, water is drawn to high-order biofilter from Microfilter pond, then enters aeration oxygen replenishing pond, thus intake along both sides water inlet pipe from circuit fishpond, form the circulating water culture system in a fishpond; Form the plug-flow active force consistent with circuit fishpond water (flow) direction simultaneously, the active force of destruction pellet morphology and water body fluidised form is changed improve into the plug-flow active force of fluidised form, from dirt remove with water body fluidised form two aspect realize circuit pond from blowdown and self-loopa, fundamentally solve fishpond from pollution discharge capability.
Regulate the internal circulating load of the by-pass valve control controllable circuit fishpond circulatory system of water pump, the water jet propulsion power that varies in size (waterpower momentum) can be produced within the specific limits, form the water volume flow rate met needed for fish growth growth; In addition run by pulse interval type, meet from the water volume flow rate needed for blowdown; Fundamentally solve fish growth required flow rate less with from the higher technical barrier of blowdown required flow rate.
Conventional loop-type fishpond, brings sufficient oxygen by constantly consuming a large amount of clear water, and removes residual bait ight soil by plug-flow effect, namely need higher water body exchange rate; The present invention by water circulation, has the effect of removing residual bait ight soil and ammonia nitrogen, aeration oxygen replenishing, thus reduction water body exchange rate greatly.Because the condition of water quality such as organic matter, ammonia nitrogen and dissolved oxygen improves, fishpond of the present invention system only needs the clear water of supplementary minute quantity can maintain system normally to run.
The present invention have make simple, blowdown convenient, invest low, easy maintenance, NH_3-N treating ability advantages of higher.It can carry out, in loop-type fishpond, forming independently circulation, reaches oxygenation, removes the organic matters such as residual bait ight soil, removes carbonic acid gas, removes the effects such as ammonia nitrogen.Can solve that racetrack fishpond blowdown is difficult, blowdown flow rate is large, the irrational difficult problem of water volume flow rate.
Claims (5)
1. a loop-type fishpond cultivating system for integrated circulating water treatment process, is characterized in that:
Comprise the fishpond of runway shape ringwise, and be located at the sewage disposal system in its inner ring;
Described sewage disposal system comprises vertical-flow solid-liquid separator (1), is provided with the dirt discharge groove (5) vertical with water (flow) direction bottom fishpond, and with the inlet communication of described vertical-flow solid-liquid separator (1); Described vertical-flow solid-liquid separator (1) outlet is communicated with Microfilter (2), the water outlet of described Microfilter (2) adopts water pump (3) and water lift pipe (4) water lift, and inject biofilter (6), described biofilter (6) and aeration oxygen replenishing pond (8) are separated by dividing plate, and be communicated with by the through hole of the lower partition, aeration oxygen replenishing pond (8) sidewall is arranged downpipe (7), described downpipe (7) is communicated with fishpond, and the water (flow) direction in downpipe (7) water outlet direction, bottom and fishpond in the same way;
Described sewage disposal system is provided with two covers, and being centrosymmetric in the inner ring in annular fishpond is evenly arranged.
2. loop-type fishpond as claimed in claim 1 cultivating system, is characterized in that: described circuit comprises pair of parallel straight way, and the semicircle bend of a pair symmetry.
3. loop-type fishpond as claimed in claim 2 cultivating system, is characterized in that: described dirt discharge groove (5) is arranged at the turning at two ends, fishpond.
4. loop-type fishpond as claimed in claim 1 cultivating system, is characterized in that: described vertical-flow solid-liquid separator (1) bottom is provided with funnelform sewage draining exit, and passes through unlatching or the closedown of Valve controlling sewage draining exit.
5. loop-type fishpond as claimed in claim 1 cultivating system, is characterized in that: the height of described water lift pipe (4) is higher than the height 200-500mm of downpipe (7).
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| CN201310479971.4A CN103503815B (en) | 2013-10-15 | 2013-10-15 | Circuit-type fishpond breeding system integrating circulating water treatment process |
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| CN201310479971.4A CN103503815B (en) | 2013-10-15 | 2013-10-15 | Circuit-type fishpond breeding system integrating circulating water treatment process |
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| CN103503815B true CN103503815B (en) | 2015-05-20 |
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