CN103141428B - Internal circulation fishpond and circulating water treatment process - Google Patents
Internal circulation fishpond and circulating water treatment process Download PDFInfo
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- CN103141428B CN103141428B CN201310100217.5A CN201310100217A CN103141428B CN 103141428 B CN103141428 B CN 103141428B CN 201310100217 A CN201310100217 A CN 201310100217A CN 103141428 B CN103141428 B CN 103141428B
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Abstract
The invention relates to the technical field of aquaculture, and discloses an internal circulation fishpond and a circulating water treatment process. According to the internal circulation fishpond and the circulating water treatment process, an air striping device, a physical filtration device and a biological filtration device are arranged in vacant regions, such as corners of the fishponds; multiple functions, such as plug flow, oxygenation, degassing, solid filtration and biological filtration, are integrated in the design of the fishpond; through arranging an air stripping pump, a moving bed biofilter and a vertical flow precipitator and the like, the water treatment function of the fishpond is perfected and enhanced, and the fishpond has the functions of oxygenation, degassing, physical filtration and biological filtration; the circulating speed of a water body is reduced while the solid utilization rate is improved; through reducing the treatment load amount of a water treatment system, the circulating speed of the water body and the operating energy consumption of a circulating water pump are reduced.
Description
Technical field
The present invention relates to technical field of aquaculture, be specially the treatment process of a kind of interior circulation fishpond and fishpond cycle water.
Background technology
Flowing water fishpond is common circle, ellipse, rectangle, square corner cut, octagon etc., and different pond, fishpond shapes cut both ways.Circular pond cost is higher, and water exchange and pollution discharging are effective, and unit water yield output is high, but operation is not too convenient, land utilization rate is low; Rectangle pond cost is lower, land utilization rate is high, easy to operate, but water exchange and blowdown are not ideal; Rectangle corner cut and octagon pond cost are lower, water exchanges and blowdown is good, easy to operate, but land utilization rate is low.
Fishpond is as the habitat of breeding fish, and in the cultivation of industrialization closed recirculating, its function, not to the utmost in this, still has: remove in time the organic collection dirt, discharging pollution functions such as residual bait, ight soil; 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 that be convenient to classification, fish for, throw something and feed etc. operates.
The design in fishpond should will be reduced to minimum with cultivation fish body next-door neighbour's current stagnation district.In the fishpond of cultivation swimming property fish, by moving about of water body flow and fish, combine, forming good fluidised form with fish body next-door neighbour's current stagnation region, sufficient dissolved oxygen is provided, and the metabolites such as ammonia nitrogen, carbonic acid gas are diffused in fishpond waterbody in time.
According to Fish behavior, learn, fish mainly can be divided into swimming property fish and the end dwelling property fish, and the former likes flowing water, and the latter likes hydrostatic or low speed flowing water.Batch production high density circulating water cultivation is mainly by improving water body exchange rate, sufficient oxygen, good water quality situation is provided and removes metabolite, realizes the cultivation target of high density, high benefit, ecological, environmental protective; Due to swimming property fish, there is the inherent advantages such as happiness flowing water, the streamlined bodily form, be very suitable for the object as intensive high density circulating water cultivation
In domestic and international main circulating water cultivation, water treatment technological process has two kinds at present, as figure below, i.e. and centralized technological process and distributing breeding technique flow process.Current centralized technological process accounts for dominant position at home and abroad, and centralized Process of Water Circulating System flow process is generally: fishpond-total return pipe-Microfilter-fluidisation casting bed-degassed-sterilization-oxygenation-feed pipe-fishpond.Be characterized in: flow process is that all concentrate one by one, fishpond is in a row, easy to operate, automaticity is high by each unit for treating water of process, the linear arrangement of each unit for treating water, water treatment region for single-threaded, all water bodys; Shortcoming is that water body internal circulating load is large, operation energy consumption is high, operating cost is high, system be take cover as operation use unit.Distributing technological process is that a fishpond is equipped with a whole set of unit for treating water system or is equipped with key water processing unit, only has a fishpond in General System.Be characterized in: there is independent water treatment system in each fishpond, can be before particulate organic matter fragmentation removal particulate organic matter rapidly and efficiently, independence, flexibility and disease controllability are strong.Shortcoming is: number of devices is many, equipment investment is large, land utilization rate is low, Pipeline arranges complexity, operational administrative inconvenience.
In existing industrial circulating water high-density breeding, generally adopt circular fishpond or corner cut fishpond, exist the shortcomings such as low, the effective breeding water body of land area availability is less, complicated operation is fished in classification, labour intensity is large.
Summary of the invention
The present invention aims to provide a kind of culturing pool of interior circulation of cultivation, can carry out the water treatments such as plug-flow, oxygenation, degassed, solid filtering, biofiltration simultaneously.
Technical solution of the present invention is, a kind of interior circulation fishpond, comprises fishpond, center, fishpond, described center be shaped as octagonal or circle, the retaining degree of depth is 2～3m; Also comprise settling system and internal circulation system, its structure is:
When fishpond, center is octagonal, it is shaped as the octagonal with four corner cuts, on a corner cut position in fishpond, center, settling system is set; When fishpond, center is circle, on a corner of the circumscribed rectangle in fishpond, center, settling system is set;
The structure of settling system comprises side blowoff basin and the perpendicular stream settling vessel that is positioned at outside, fishpond, center, one side of side blowoff basin is connected as a single entity with fishpond, center outer wall, on the outer wall of fishpond, Yu center, near the position of the water surface, barrier net grid A is installed, preferably, the center of barrier net grid A and fishpond, center water surface distance are 20～30cm; The outside of barrier net grid A is side blowoff basin; The delivery port in fishpond and the water inlet of side blowoff basin centered by barrier net grid A;
Side blowoff basin is communicated with fishpond, center by lock net grid A; Side blowoff basin top is connected with side drainpipe, and the side drainpipe other end is connected to outside concentrated water treatment system; Preferably, the position that described side drainpipe is connected with side blowoff basin is positioned at barrier net grid A offside, and its center sets high 5～15cm than the centre bit of barrier net grid A;
Bottom, fishpond, center arranges end outlet pipe, and one end of end outlet pipe is positioned at the center of bottom, central fishpond, and the other end is connected to the bottom of perpendicular stream settling vessel; The position of perpendicular stream settling vessel bottom collecting precipitation thing connects bottom blowdown pipe; Perpendicular stream settling vessel top is connected with one end of end drainpipe, and the other end of end drainpipe is connected to outside concentrated water treatment system; The center of end drainpipe is than the low 10～20cm of fishpond, the center water surface (19);
The structure of perpendicular stream settling vessel comprises perpendicular stream settling vessel outer wall, is positioned at finger tubular sleeve and the water pipe of perpendicular stream settling vessel inside center, and the described upper and lower both ends open of finger tubular sleeve, refers to that the top of tubular sleeve is than the high 5～10cm in drainpipe top, the end; Described water pipe is carpenter's square type, comprises the level pipe and the vertical pipe that by elbow, are connected, and the angle between level pipe and vertical pipe is 85～95 degree; The other end of vertical pipe stretches into and refers to tubular sleeve center, and the other end of level pipe, through perpendicular stream settling vessel outer wall, is connected with end outlet pipe.
When fishpond, center is octagonal, in its excess-three corner cut, internal circulation system is set; When fishpond, center is circle, on its excess-three corner of the circumscribed rectangle in fishpond, center, internal circulation system is set; Described internal circulation system comprises:
Circulating water pool, high-order pond and moving bed biological filter in the arranged outside of fishpond, center outer wall; One side of interior circulating water pool and the one side in high-order pond are connected as a single entity with fishpond, center outer wall respectively, and moving bed biological filter is between interior circulation intake pool and high-order pond;
On position near bottom, fishpond, center on the outer wall of fishpond, center, lock net grid B is installed; Fishpond, center is communicated with interior circulation intake pool by barrier net grid B; The delivery port in fishpond and the water inlet of interior circulation intake pool centered by barrier net grid B; Preferably, the distance of the center of described barrier net grid B and bottom, fishpond, center is 15～20cm;
Between interior circulation intake pool and moving bed biological filter, with airlift pump, be connected, airlift pump is connected to moving bed biological filter water inlet; The position of described moving bed biological filter water inlet is higher than fishpond, the center water surface;
Moving bed biological filter is connected to the bottom in high-order pond with cross over pipe, preferred, the center of cross over pipe and high-order pond water surface distance are 2～3m, and high-order pond water surface site is higher than fishpond, center water surface site 10～30cm;
Preferably, the water surface site in moving bed biological filter water inlet center and high-order pond is higher than fishpond, the center water surface 15～20cm;
High-order pond is communicated with fishpond, center by water inlet pipe, and the position of water inlet pipe is lower than the water surface in fishpond, center; Preferably, water inlet pipe center is than the low 40～50cm of fishpond, the center water surface.
The circulating water treatment process in described interior circulation fishpond comprises:
Precipitation process:
The water of fishpond bottom center flows into perpendicular stream settling vessel by end outlet pipe, and after precipitate and separate, the dirt of solid and addle flow out by bottom blowdown pipe; Water after filtration, purification enters into outside concentrated water treatment system through end drainpipe 12, flows back to after treatment fishpond;
The water on upper strata, fishpond passes through barrier net grid B inflow side blowoff basin, and enters into outside concentrated water treatment system by being positioned at the side drainpipe of side blowoff basin opposite side, flows back to after treatment fishpond;
The technique of described outside concentrated water treatment system comprises: physical filtering, biofiltration, degassed, sterilization and oxygenation;
Interior circular treatment:
Water in fishpond, in barrier net grid B flows into pond, then is extracted water and is sent into moving bed biological filter by airlift pump from pond, and after filtering, water flows into high-order pond by cross over pipe, then flows back to fishpond through water inlet pipe, in realizing, circulates.
The present invention relates to a kind of corner in circle or corner cut fishpond that utilizes and fall to configuring air-lift device, physical filtering or biofiltration device, thereby promote the novel fishpond of collection dirt, discharging pollution of residual bait and ight soil, refer to that especially a kind of while can carry out the cultivation fish pond for cultured fishes of the water treatments such as plug-flow, oxygenation, degassed, solid filtering, biofiltration.This device is mainly used in the fishpond of batch production, intensive circulating water culture system, also can be for other cultivation fields.
This device have make simple, blowdown is convenient, it is low to invest, energy consumption is low, do not need backwash, freedom from repairs, ammonia nitrogen disposal ability advantages of higher.It can be in carrying out removing cultivating system when nitrification is removed non-ionic ammonia a large amount of solid particle organic matters.
The feature of technical solution of the present invention is:
1) idle areas such as corner that this device makes full use of fishpond fall to configuring air-lift device, physical filtering or biofiltration device; Collect the several functions such as plug-flow, oxygenation, degassed, solid filtering, biofiltration in the design of fishpond; By airlift pump, moving bed biological filter, perpendicular stream settling vessel etc. are set, improve and strengthen fishpond treatment function, there are oxygenation, degassed, physical filtering and biofiltration function; When improving land utilization rate, reduced water body cycle rate; By alleviating the processing load of water treatment system, reduce water body cycle rate and water circulating pump operation energy consumption;
2) conventional fishpond aeration is compared, this fishpond is changed the plug-flow active force consistent with water (flow) direction into by the rising kinetic current of air lift aeration, make the active force that destroys ight soil form and water body fluidised form change the plug-flow active force that improves fluidised form into, can not destroy ight soil form and water body fluidised form, and by forming plug-flow effect, defecate fast in time; Can be easy, efficiently collect and discharge the particulate organic matters such as residual bait ight soil;
3) compare with single linear water treatment technological process, this technological process has interior circulatory function, can greatly reduce water body cycle rate, reduces pump energy consumption, alleviates the processing load of water treatment system;
4) advantage of integrated centralized and distributing water treatment technological process of technological process of the present invention is in one, form have certain in the fishpond system of circulating water treatment ability, each fishpond has certain independence and flexibility; To cutting off the water supply, the complex working condition adaptability such as water treatment facilities fault, maintenance, stationarity is better.
5) the present invention is applicable to most fish adult fish or parent population cultivation, is particularly useful for the high density intensive culture of swimming property fish; Also can be used for other relevant aquaculture field.
Accompanying drawing explanation
Fig. 1 is water treatment technological process in circulating water cultivation: centralized technological process and distributing breeding technique flow process, wherein arrow is water (flow) direction.
Fig. 2 is internal-circulation type water treatment technological process of the present invention, and wherein arrow is water (flow) direction.
Fig. 3 is the structural representation in the embodiment of the present invention 1 internal-circulation type fishpond
Fig. 4 is the structural representation of the interior circulation of the embodiment of the present invention 1 fishpond perpendicular stream settling vessel and end outlet pipe
Fig. 5 is the internal circulation system structural representation in the interior circulation of the embodiment of the present invention 1 fishpond
Fig. 6 is the structural representation in the embodiment of the present invention 2 internal-circulation type fishponds
1-barrier net grid B, 2-airlift pump, 3-moving bed biological filter, 4-cross over pipe, 5-high-order pond, 6-water inlet pipe, 7-barrier net grid A, 8-side blowoff basin, 9-side drainpipe, 10-end outlet pipe, 11-perpendicular stream settling vessel, 1101-perpendicular stream settling vessel outer wall, 1102-refer to tubular sleeve, 12-end drainpipe, 13-bottom blowdown pipe, 14-interior circulation intake pool, fishpond, 15-center; The long limit a of 171-outer wall, the long limit b of 172-outer wall, the long limit c of 173-outer wall, the long limit d of 174-outer wall, 181-outer wall minor face a, 182-outer wall minor face b, 183-outer wall minor face c, 184-outer wall minor face d, fishpond, the 19-center water surface, the 20-high-order pond water surface
Embodiment
Embodiment 1
In prior art, the centralized water treatment technological process cultivating with distributing is as Fig. 1.Distributing water treatment technology is, the water in single fishpond is extracted out, gets back in fishpond successively after physical filtering, biofiltration, degassed, sterilization and oxygenation are processed.
Centralized water treatment technology is: water in a plurality of fishponds (fishpond I, II, II) concentrates in together after extracting out, gets back in each fishpond successively after physical filtering, biofiltration, degassed, sterilization and oxygenation are processed.
Interior circulation of the present invention fishpond is:
As shown in Figure 3, the structure in interior circulation fishpond (fishpond I) comprises fishpond, center 15, fishpond, center be shaped as the octagonal with four corner cuts, its adjacent limit is respectively the outer wall connecting successively long limit a, outer wall minor face a, outer wall long limit b, outer wall minor face b, outer wall long limit c, outer wall minor face c, outer wall long limit d, outer wall minor face d, and the position of corner cut is on minor face.2～3 meters of the retaining degree of depth (being that fishpond, the center water surface and fishpond, center distance from bottom are 2～3 meters) in fishpond, center.
On the position of a corner cut therein, settling system is set, the side blowoff basin and the perpendicular stream settling vessel 11 that comprise the outside that is positioned at fishpond, center outer wall minor face a: on the outer wall minor face a181 of fishpond, center, barrier net grid A7 is installed, diameter 10～20cm of barrier net grid A, its center is positioned at the following 20～30cm of fishpond, the center water surface, at the arranged outside side blowoff basin 8 of fishpond outer wall minor face a; Side blowoff basin bottom position and bottom, fishpond, center are positioned in same level, shape is preferably right angled triangle, its hypotenuse and outer wall minor face a are connected as a single entity, with between fishpond, center, with barrier net grid A, be connected, and the length of this hypotenuse is 1/3～2/3 of outer wall bond length, the long limit a of right-angle side of side blowoff basin and adjacent outer wall is connected as a single entity; The delivery port in fishpond and the water inlet of side blowoff basin centered by barrier net grid A;
One end of side drainpipe 9 is connected to the top of side blowoff basin 8, and position is at barrier net grid A offside, and its center sets high 5～15cm than the centre bit of barrier net grid A; The side drainpipe other end is connected to outside concentrated water treatment system, carries out the processing such as physical filtering, biofiltration, degassed, sterilization and oxygenation;
Bottom, fishpond, center arranges end outlet pipe, and one end of end outlet pipe 10 is positioned at the center of bottom, central fishpond, and the other end is connected to the bottom of perpendicular stream settling vessel; The position of perpendicular stream settling vessel bottom collecting precipitation connects bottom blowdown pipe 13, drainpipe 12 at the bottom of the settling vessel top connection of perpendicular stream; The other end of end drainpipe is connected to outside concentrated water treatment system; The center of end drainpipe is than the low 10～20cm of fishpond, the center water surface (19);
As shown in Figure 4, the structure of perpendicular stream settling vessel 11 comprises perpendicular stream settling vessel outer wall 1101, is positioned at finger tubular sleeve 1102 and the water pipe of perpendicular stream settling vessel inside center, described finger tubular sleeve both ends open, refers to that tubular sleeve top is than the high 5～10cm in the top of end drainpipe; Described water pipe is carpenter's square type, comprises the level pipe 1104 and the vertical pipe 1106 that by elbow 1105, are connected, and the angle between level pipe and vertical pipe is 85～95 degree, is preferably 90 degree; The other end of vertical pipe stretches into and refers in tubular sleeve, and position is lower than referring to tubular sleeve top; The other end of level pipe, through perpendicular stream settling vessel outer wall, is connected with end outlet pipe 10.
At the bottom of the perpendicular stream of fishpond, center water surface site ratio settling vessel, the centre bit of drainpipe 12 sets high approximately 10～20cm, by hydraulic pressure, realizes blowdown; As shown in Figure 4, the water of bottom, fishpond, center enters water pipe from end drainpipe, the level pipe 1104 of first flowing through, through perpendicular stream settling vessel outer wall, behind perpendicular stream settling vessel center, by elbow 1105, enter upwards water inlet of vertical pipe 1106 realizations, water inlet first upwards enters fingerstall shape sleeve 1102, then flows out fingerstall shape sleeve downwards, between perpendicular stream settling vessel outer wall and fingerstall shape sleeve, upwards flow, thereby realize precipitate and separate effect.The clear water on upper strata flows out perpendicular stream settling vessel from end drainpipe 12, enters into outside concentrated water treatment system, carries out the processing such as physical filtering, biofiltration, degassed, sterilization and oxygenation; The dirt of solid (as ight soil and residual bait) and addle flow out otherwise processed by bottom blowdown pipe 13.
The water on upper strata, fishpond, center is by barrier net grid A7 inflow side blowoff basin 8, and enters into outside concentrated water treatment system by being positioned at the side drainpipe 9 of side blowoff basin opposite side, carries out the processing such as physical filtering, biofiltration, degassed, sterilization and oxygenation.
Fishpond levels water quality has difference, and water quality is more clear at the middle and upper levels, precipitated solid dirt voluntarily in the blowoff basin of inflow side, and the water after precipitation enters outside concentrated water treatment system by side drainpipe again and is purified; In the water of bottom, the solid dirt such as ight soil, food-residue is more, and therefore separated with perpendicular stream settling vessel, solid dirt and addle are through bottom blowdown tube drainage, and the water after separation enters outside concentrated water treatment system again and purified.
As shown in Figure 5, another corner in fishpond, center arranges internal circulation system: on outer wall minor face b, near the position of bottom, fishpond, center, barrier net grid B1 is installed, intake pool 14, high-order pond 5 and moving bed biological filter 3 circulate in the arranged outside of fishpond, center outer wall minor face b.
Interior circulation intake pool and high-order pond be shaped as right angled triangle, its hypotenuse and outer wall minor face b are connected as a single entity; Moving bed biological filter is between interior circulation intake pool and high-order pond.Interior circulation intake pool and bottom, fishpond, Yu Yu center, bottom, high-order pond are positioned in same level.
Barrier net grid B diameter 10～30cm, its center is far from bottom, fishpond, center 30～40cm; Fishpond, center is communicated with interior circulation intake pool 14 by barrier net grid B; The delivery port in fishpond and the water inlet of interior circulation intake pool centered by barrier net grid B; Between interior circulation intake pool and moving bed biological filter, airlift pump 2 is set, airlift pump is connected to moving bed biological filter water inlet; Moving bed biological filter is with cross over pipe 4 to be connected to bottom, high-order pond, and the center of cross over pipe and high-order pond water surface distance are 2～3m; High-order pond is communicated with fishpond, center by water inlet pipe 6, and the center of water inlet pipe is lower than fishpond, the center water surface 40～50cm.The position of high-order pond water surface site and moving bed biological filter water inlet moving bed biological filter is than the high 15～20cm of fishpond, center water surface site.
Degassed and oxygenation is mainly by being that airlift pump and moving bed biological filter complete: the gas stripping of airlift pump is realized by aeration, and the biofilter material of moving bed biological filter moves through aeration realization, by aeration, can realize degassed and oxygenation.
Water in fishpond, center is in barrier net grid B flows in circulation intake pool 14, by airlift pump, water is extracted out and sent into moving bed biological filter from interior circulation intake pool again, after filtering, water flows into high-order pond by cross over pipe and carries out degassed and oxygenation, through water inlet pipe, flow back to fishpond, center again, complete interior circulation to realize biofiltration, degassed and oxygenation.
As required, same internal circulation system can be set in two other corner.
Water in the I of fishpond, by internal circulation system, realizes biofiltration, degassed and oxygenation; The water of discharging after the perpendicular stream of settling system precipitation process, together enter outside concentrated water treatment system with other a plurality of water of the middle discharge in fishpond (fishpond II, fishpond III etc.) in parallel with it, further after physical filtering, biofiltration, degassed, sterilization and oxygenation, flow back to again in each fishpond, as shown in Figure 2.
Pass through such scheme, make full use of the idle areas such as corner in fishpond, airlift pump, moving bed biological filter, perpendicular stream settling vessel etc. are set, improve and strengthen fishpond treatment function, make it to there is oxygenation, degassed, physical filtering and biofiltration function, by alleviating the processing load of water treatment system, when improving land utilization rate, water body cycle rate and water circulating pump operation energy consumption have been reduced.Adopt apparatus and method of the present invention, can loss-rate traditional handicraft reduce by 20%.
Airlift pump changes the rising kinetic current of aeration into the plug-flow active force consistent with water (flow) direction, makes the active force that destroys ight soil form and water body fluidised form change the plug-flow active force that improves fluidised form into, defecate fast in time; Can be easy, efficiently collect and discharge the particulate organic matters such as residual bait ight soil.
The advantage of said apparatus and technological process integrated centralized and distributing water treatment technological process is in one, form have certain in the fishpond system of circulating water treatment ability, each fishpond has certain independence and flexibility.
Embodiment 2
As shown in Figure 6, fishpond, center is circular, and the circumscribed rectangle in fishpond, center has four corners.On a corner, settling system is set therein, the structure of settling system and operation principle are with embodiment 1.
On its excess-three corner, internal circulation system is set, the structure of internal circulation system and operation principle are with embodiment 1.
Claims (9)
1. the fishpond of circulating in, comprises fishpond, center (15), it is characterized in that, fishpond, described center (15) be shaped as octagonal or circle; Also comprise settling system and internal circulation system, its structure is:
When fishpond, center (15) are octagonal, it is shaped as the octagonal with four corner cuts, on a corner cut position in fishpond, center, settling system is set; When fishpond, center (15) are circle, on a corner of the circumscribed rectangle in fishpond, center (15), settling system is set;
The structure of settling system comprises side blowoff basin and the perpendicular stream settling vessel that is positioned at outside, fishpond, center (15), and one side of side blowoff basin is connected as a single entity with fishpond, center outer wall, on the outer wall of fishpond, Yu center (15), near the position of the water surface, barrier net grid A is installed; The outside of barrier net grid A is side blowoff basin; The delivery port in fishpond and the water inlet of side blowoff basin centered by barrier net grid A;
Side blowoff basin is communicated with fishpond, center (15) by lock net grid A; Side blowoff basin top is connected with side drainpipe, and the side drainpipe other end is connected to outside concentrated water treatment system;
Bottom, fishpond, center (15) arranges end outlet pipe (10), and one end of end outlet pipe (10) is positioned at the center of bottom, central fishpond (15), and the other end is connected to the bottom of perpendicular stream settling vessel (11); The position of perpendicular stream settling vessel (11) bottom collecting precipitation thing connects bottom blowdown pipe (13); Perpendicular stream settling vessel (11) top arranges end drainpipe (12), and one end of end drainpipe (12) is connected to perpendicular stream settling vessel top, and the other end is connected to outside concentrated water treatment system; The center of end drainpipe (12) is than the low 10～20cm of fishpond, the center water surface (19);
When fishpond, center (15) is octagonal, in its excess-three corner cut, internal circulation system is set; When fishpond, center (15) are circle, on its excess-three corner of the circumscribed rectangle in fishpond, center (15), internal circulation system is set; Described internal circulation system comprises:
Circulation intake pool (14), high-order pond (5) and moving bed biological filter (3) in the arranged outside of fishpond, center (15) outer wall; One side of one side of interior circulation intake pool (14) and high-order pond (5) is connected as a single entity with fishpond, center (15) outer wall respectively, and moving bed biological filter (3) is positioned between circulation intake pool (14) and high-order pond (5);
On position near bottom, fishpond, center (15) on the outer wall of fishpond, center (15), lock net grid B is installed; Fishpond, center (15) is communicated with interior circulation intake pool (14) by barrier net grid B; The delivery port of fishpond (15) and the water inlet of interior circulation intake pool centered by barrier net grid B;
Between interior circulation intake pool (14) and moving bed biological filter (3), with airlift pump (2), be connected, airlift pump is connected to moving bed biological filter water inlet; The position of described moving bed biological filter water inlet is higher than fishpond, the center water surface (19);
Moving bed biological filter (3) is connected to the bottom in high-order pond with cross over pipe, the high-order pond water surface (20) position is higher than fishpond, center water surface site 10～30cm;
High-order pond (5) is communicated with fishpond, center (15) by water inlet pipe (6), and the position of water inlet pipe (6) is lower than fishpond, the center water surface (19).
2. in described in claim 1, circulation fishpond, is characterized in that, described fishpond, center (15) the retaining degree of depth is 2～3m, and the distance of the center of described barrier net grid B (1) and fishpond, center (15) bottom is 15～20cm; Described moving bed biological filter water inlet center and the high-order pond water surface (20) position are higher than fishpond, the center water surface (19) 15～20cm.
3. in described in claim 1 or 2, circulation fishpond, is characterized in that, the center of described cross over pipe (4) and the high-order pond water surface (20) distance are 2～3m.
4. in described in claim 1 or 2, circulation fishpond, is characterized in that, the center of described water inlet pipe (6) is positioned at the following 40～50cm of fishpond, the center water surface (19).
5. in described in claim 1, circulation fishpond, is characterized in that, the center of described barrier net grid A (7) and fishpond, the center water surface (19) distance are 20～30cm.
6. circulation fishpond in described in claim 1 or 5, it is characterized in that, the position that described side drainpipe (9) is connected with side blowoff basin (8) is positioned at barrier net grid A (7) offside, and its center sets high 5～15cm than the centre bit of barrier net grid A (7).
7. circulation fishpond in described in claim 1, it is characterized in that, the structure of perpendicular stream settling vessel (11) comprises perpendicular stream settling vessel outer wall (1101), is positioned at finger tubular sleeve (1102) and the water pipe of perpendicular stream settling vessel inside center, the upper and lower both ends open of described finger tubular sleeve (1102), refers to that tubular sleeve (1102) top is higher than end drainpipe 5～10cm; Described water pipe is carpenter's square type, comprises the level pipe (1104) and the vertical pipe (1106) that by elbow (1105), are connected, and the angle between level pipe (1104) and vertical pipe (1106) is 85～95 degree; The other end of vertical pipe (1106) stretches into and refers to tubular sleeve (1102) center, and the other end of level pipe (1104), through perpendicular stream settling vessel outer wall (1101), is connected with end outlet pipe (10).
8. in described in claim 1～7 any one, the circulating water treatment process in circulation fishpond, is characterized in that, comprises precipitation process and interior circular treatment:
Precipitation process:
The water of fishpond, center (15) bottom center flows into perpendicular stream settling vessel (11) by end outlet pipe (10), and after precipitate and separate, the dirt of solid and addle flow out by bottom blowdown pipe (13); Water after filtration, purification enters into outside concentrated water treatment system through end drainpipe (12), flows back to after treatment fishpond, center (15);
The water on upper strata, fishpond, center (15) is by barrier net grid A (7) inflow side blowoff basin (8), and enter into outside concentrated water treatment system by being positioned at the side drainpipe (9) of side blowoff basin (8) opposite side, flow back to after treatment fishpond, center (15);
Interior circular treatment:
Water in fishpond, center (15) is in barrier net grid B (1) flows in circulation intake pool, by airlift pump (2), water is extracted out and sent into moving bed biological filter (3) from interior circulation intake pool (14) again, after filtering, water flows into high-order pond (5) by cross over pipe (4), pass through again water inlet pipe (6) and flow back to fishpond, center (15), circulation in realizing.
9. circulating water treatment process claimed in claim 8, is characterized in that, the technique of described outside concentrated water treatment system comprises: physical filtering, biofiltration, degassed, sterilization and oxygenation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310100217.5A CN103141428B (en) | 2013-03-26 | 2013-03-26 | Internal circulation fishpond and circulating water treatment process |
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| CN104604782A (en) * | 2015-02-27 | 2015-05-13 | 烟台泰华海洋科技有限公司 | Three-dimensional industrial circulating water cultivation system |
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| CN105165702A (en) * | 2015-10-19 | 2015-12-23 | 中国水产科学研究院渔业机械仪器研究所 | Warm water fish modular cultivation system suitable for being used in arid regions |
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| JP6858996B1 (en) * | 2020-03-12 | 2021-04-14 | 株式会社林養魚場 | Seafood aquaculture equipment and methods |
| CN114031240A (en) * | 2021-05-10 | 2022-02-11 | 上海渔盛科技有限公司 | Fish and vegetable mode construction process |
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