CN103238554B - Ecotype enclosed method for culturing fish through circulation water - Google Patents
Ecotype enclosed method for culturing fish through circulation water Download PDFInfo
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- CN103238554B CN103238554B CN201310186590.7A CN201310186590A CN103238554B CN 103238554 B CN103238554 B CN 103238554B CN 201310186590 A CN201310186590 A CN 201310186590A CN 103238554 B CN103238554 B CN 103238554B
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Abstract
The invention discloses an ecotype enclosed method for culturing fish through circulation water. Natural seawater, underground salt water, underground fresh water and geothermal water are mainly utilized and mixed, and an industrial culture foundation for producing pollution-free healthy seafood is built and used. A solid-liquid separation purification device is used for replacing sand filtration of a biological filter, ammonia nitrogen and nitrite nitrogen are degraded after water passing through a biological film on biological filler in the biological filter, and the total purification rate of water body particles is over 99%. An aeration pond is arranged to conduct aeration and oxygenation on a culture water body to enable the content of dissolved oxygen in water in a fish culture pond to be kept at 8-14mg/L, finally the water body is sterilized through ultraviolet light, clean ecological water is input into the fish culture pond, and the return water in the fish culture pond is purified repeatedly and utilized in a circulating mode. Sewage discharged from a culture system is purified by an open-air pond and flows back to a water storage sedimentation pond to achieve zero-discharge complete enclosed circulation water factory-like fish culture.
Description
Technical field
The invention belongs to the industrialized field of aquaculture, relate to specifically ecological closed cycle water fish-cultivating method.Mainly utilize natural sea-water, saline groundwater, fresh groundwater and GEOTHERMAL WATER to allocate and recycle and build production pollution-free healthy seafood industrialized aquaculture base.
Background technology
In disclosed technology, its patent No. is 200910128325.7, and name is called " ecological closed cycle water fish-cultivating method ".Main utilization set up retaining sedimentation basin and water distribution workshop at inshore intake place; Fish farming shop is built crawl, builds backwater channel carry out precipitate and separate in crawl outside, utilizes two-stage biofilter to purify water, and supplies water through the backward crawl of disinfection by ultraviolet light by pipeline; The sewage that the process of breeding fish is discharged purifies through two-stage waste water treatment pond, and sewage purification rear inflow retaining sedimentation basin up to standard utilizes again.In this patent working process, find following deficiency.
1, one-level biofilter is sand filtration, easily stops up, and needs 3-4 artificial backwash every day, and 1 sand filter of everyone each backwash needs time 50-60 minute; In the time of backwash, need to stop water circulation, in crawl, the dissolved oxygen of water supplements by flowing water, and flowing water stops, and dissolved oxygen content expendable declines, and causes the living environment variation of fish larger, is unfavorable for metabolism and the growth of fish; When backwash, consumption of water is more, and labor strength is large; More serious disadvantage, is exactly in the time of workman's backwash, easily the screen cloth of the anti-leak-stopping sand under layer of sand is staved, and sand is slipped through the net, and in bottom alluvial, blackening is fouled, and polluted water affects the growth of fish and reduces the survival rate of fish, i.e. human factor impact is larger.
2, the tubular structure that ultraviolet ray disinfector designs in feedwater piping, there are two drawbacks in such ultraviolet ray disinfector, and the one, installation difficulty is large, maintenance trouble; The 2nd, the in-built ultraviolet lamp of quartz socket tube, blocks ultraviolet ray after quartz socket tube outer wall set-off, reduces Disinfection Effect, must regularly take out quartz socket tube, cleans the foul of its outer wall, very inconvenient.
3, utilize backwater channel to carry out precipitate and separate and have drawback, backwater channel reaches 60000mm, width 500mm, and particle deposition is disperseed, and sweep-out pattern is large, and the operation element amount of removing contamination is large; Backwater channel needs cleaning every day, and 1 operative employee cleans 1 backwater channel needs the time more than 30 minutes, and easy cleaning is unclean, and residual particles on backwater channel, affects water quality, also will drain the water in channel while cleaning simultaneously, wastes water very much.
4, oxygenation way, while using liquid oxygen, each cultivating system configures a set of gas-liquid mixing pump, 0.7 kilowatt ~ 1.5 kilowatts of power, or special loose device of air is installed, and crawl water inlet dissolved oxygen content 15mg/L ~ 20mg/L, crawl delivery port dissolved oxygen content is not less than 5mg/L.Gas-liquid mixing pump and loose device of air just increase water oxygen gas, and function singleness does not possess isolation of purified effect.
5, near the biofilter board of classification, have a leg-of-mutton current dead angle area, dead angle is unfavorable for water quality exchange, is also unfavorable for biomembranous formation.
Summary of the invention
In view of above-mentioned present situation, the invention provides a kind of ecological closed cycle water fish-cultivating method.By the mode in channeltype biofilter, not classification, the pipeline mode of perforation, and disinfection by ultraviolet light entirely, aeration oxygen replenishing pond, not only reduce human factor to the impact of breeding fish, and reduced the cost of breeding fish, effectively improve the efficiency of breeding fish.
Technical solution of the present invention is: ecological closed cycle water fish-cultivating method, comprising:
(1) near the water source of breeding fish: place sets up retaining sedimentation basin at inshore intake, makes geothermal well retaining sedimentation basin, salt water well, fresh water well; Supplied water to water distribution workshop by retaining sedimentation basin, geothermal well, salt water well and fresh water well;
(2) water distribution workshop: comprise the first sand filter, the second sand filter, distribution reservoir, aqueduct; The second sand filter is connected with retaining sedimentation basin by pipeline, and the natural sea-water after filtering is offered to distribution reservoir; The first sand filter is connected with salt water well, after the saline groundwater of salt water well is filtered, offers distribution reservoir; Distribution reservoir is connected by pipeline with fresh water well, the geothermal well of supplying with fresh water and GEOTHERMAL WATER respectively; In distribution reservoir, be deployed into the temperature that is suitable for breeding fish and the water of salinity with natural sea-water, GEOTHERMAL WATER, fresh water and saline groundwater, this distribution reservoir is connected with fish farming shop by aqueduct, and supplies water to fish farming shop;
(3) fish farming shop: comprise high-order water feeder and the multiple crawls that formed by partition wall interval each other; The water inlet of high-order water feeder is connected with distribution reservoir by aqueduct, and its delivery port is equipped with vibration means for main pipe for supplying water road, is connected with the crawl at partition wall position, close each pond by each branch water-supply-pipe of drawing on vibration means for main pipe for supplying water road; Wherein, high-order water feeder is higher than crawl, and the difference in height in two ponds is 800-1200mm; At the bottom of the pond of crawl, central authorities arrange water return pipeline, and this water return pipeline is connected with Separation of Solid and Liquid purification facility;
(4) Separation of Solid and Liquid purification facility: comprise one-level solid-liquid separation tank, secondary solid-liquid separation tank, front end diversion basin, water pump groove, water circulating pump, three grades of solid-liquid separation tanks, end diversion basin, backwater main pipeline, sewage conduct, biofilter, aeration oxygen replenishing pond and disinfection by ultraviolet light ponds; Wherein:
One-level solid-liquid separation tank is that the backwater that crawl is given off by water return pipeline carries out Separation of Solid and Liquid for the first time, the sewage producing after separating is input to sewage disposal system by sewage conduct and purifies, purifying waste water after separation enters secondary solid-liquid separation tank by backwater main pipeline and carries out solid-liquid and separate for the second time, sewage after separation is again sent to sewage disposal system by sewage conduct and purifies, purifying waste water after separating flowed into water pump groove, be transported to and be transported to again three grades of solid-liquid separation tanks after front end diversion basin and carry out Separation of Solid and Liquid for the third time by water circulating pump, sewage after separation is transported to waste water treatment cell system by sewage conduct and purifies, finally purifying waste water after separating is transported to end diversion basin, to purify waste water and be transported to biofilter by the mouth of a river excessively on end diversion basin,
Biofilter is channeltype, fills stereo-elastic biologic packing material in biofilter, will purify waste water after processing by biofilter and be transported to aeration oxygen replenishing pond;
Aeration oxygen replenishing pond is communicated with disinfection by ultraviolet light pond, and aerator is installed in the bottom in aeration oxygen replenishing pond;
Disinfection by ultraviolet light pond is communicated with the high-order water feeder of fish farming shop, and ultraviolet ray disinfector is installed in disinfection by ultraviolet light pond;
(5) sewage disposal system: comprise one-level waste water treatment pond, B-grade sewage processing pond; Wherein:
One-level waste water treatment pond water inlet is connected with Separation of Solid and Liquid purification facility by sewage conduct, the shellfish of cultivation for purifying waste water in described one-level waste water treatment pond, flows into B-grade sewage purification pond through after treatment the purifying waste water in one-level waste water treatment pond by pipeline;
B-grade sewage purifies pasture and water and the algae of cultivation for purifying waste water in pond; Purify after treatment the purifying waste water in pond by B-grade sewage and send into retaining sedimentation basin through sand filtration wall, concrete duct.
In step 4 of the present invention, the pool wall of described one-level solid-liquid separation tank is circular, at the bottom of pond, be conical, pool wall diameter is 1000mm, tapering is 4, on pool wall, be respectively equipped with the entery and delivery port of opposite direction, the Inlet and outlet water direction of entery and delivery port, near the tangential direction of pool wall inner circle, forms a determining deviation each other; Establish blow-off pipe at conical Chi Di center, caliber 110mm, which is provided with sewage draining valve.
In step 4 of the present invention, described secondary solid-liquid separation tank is square pond, and four jiaos is Rouno Cormer Pregrinding Wheel, is conical at the bottom of pond, and pool side is long is 5000mm, and tapering is 10, and pool wall is provided with entery and delivery port, and entery and delivery port shifts to install relatively; Establish blow-off pipe at conical Chi Di center, caliber 160mm, which is provided with sewage draining valve.
In step 4 of the present invention, three grades of described solid-liquid separation tanks are higher than crawl, and the difference in height in two ponds is 1000mm; Three grades of solid-liquid separation tanks are square pond, and four jiaos is Rouno Cormer Pregrinding Wheel, are conical at the bottom of pond, and pool side is long is 2000mm, tapering is 4, and pool wall is provided with entery and delivery port, and entery and delivery port shifts to install relatively, described entery and delivery port be the identical rectangle of size, it is wide is 300mm, height is 1000mm; Establish blow-off pipe at conical Chi Di center, caliber 110mm, which is provided with sewage draining valve; Three grades of solid-liquid separation tanks are positioned at biofilter, and multiple three grades of identical solid-liquid separation tanks are set continuously, hang stereo-elastic biologic packing material in it.
In step 4 of the present invention, described biofilter 12 is channeltype, and pond overall length is 45000mm, and pond is wide is 2000mm, and pond is 2000mm deeply; Biofilter 12 every square metre hang 100 of biologic packing materials, every diameter 150mm, effective length 1800mm.
In step 4 in the present invention, described aeration oxygen replenishing pond is rectangle pond, and pond is long is 3000mm, and pond is wide is 2000mm, and pond is 2000mm deeply; The pool wall bottom in aeration oxygen replenishing pond is provided with the foursquare mouth of a river of crossing of length of side 500mm and is communicated with disinfection by ultraviolet light pond, on the pool wall in the aeration oxygen replenishing pond adjacent with disinfection by ultraviolet light pond, foam separatory funnel is installed.
In step 4 of the present invention, described disinfection by ultraviolet light pond is rectangle pond, and pond is long is 1000mm, pond is wide is 600mm, Chi Shen is 2000mm, and ultraviolet ray disinfector is installed in disinfection by ultraviolet light pond, and this ultraviolet ray disinfector comprises quartz socket tube, quartz burner and caisson; Wherein:
Quartz burner is 75 watts, totally 21, and point 3 row configurations, 7 of every row, often itemize and solely control;
The diameter of quartz socket tube is 25mm;
Caisson is made of PVC plate, has the installing hole of distribution on caisson, and aperture is 26mm, and pitch-row is 80mm, and the quartz socket tube that quartz burner is installed is inserted in the installing hole of caisson.
Main improvement of the present invention and good effect are:
1, multiple three grades of solid-liquid separation tanks are continuously set, carry out the sand filtration that systematic separating granular replaces one-level biofilter.Three grades of solid-liquid separation tanks 13 are square pond, and four jiaos is Rouno Cormer Pregrinding Wheel, are conical at the bottom of pond, and pool side is long is 2000mm, tapering is 4, and pool wall is provided with entery and delivery port, and entery and delivery port shifts to install relatively, described entery and delivery port be the identical rectangle of size, it is wide is 300mm, height is 1000mm; Three grades of solid-liquid separation tanks are built in biofilter, establish continuously multiple three grades of solid-liquid separation tanks, hang stereo-elastic biologic packing material in pond; Be conducive to interception and the sinking of particle, concentrate the center that is deposited in conical bottom, blowdown is discharged 1 time every day, discharges 5-10 second at every turn, reduces costs, and raises the efficiency, and reduces human factor impact.
Biologic packing material also plays the effect that biofilter purifies water simultaneously.Multistage continuous precipitation purifies, and water quality one-level is more clean than one-level, and the purification efficiency of solid-liquid separation tank is better than sand filter.
2, disinfection by ultraviolet light pond is set, disinfection by ultraviolet light pond is rectangle pond, and pond is long is 1000mm, pond is wide is 600mm, Chi Shen is 2000mm, and ultraviolet ray disinfector is installed in disinfection by ultraviolet light pond, and this ultraviolet ray disinfector comprises quartz socket tube, quartz burner and caisson.This ultraviolet ray disinfector is easy for installation, is just suspended in sterilization pool, once quartz socket tube set-off is pulled out and got final product scrub, after cleaning, inserts again, simple.
3, replace backwater channel at the other one-level solid-liquid separation tank that arranges of each crawl; Adopt this one-level solid-liquid separation tank, particle is concentrated and is deposited on bottom, opens bottom valve 5-10 and can discharge second, does not need cleaning, simple to operate, economizes on water, saves time.
4, aeration oxygen replenishing pond is set, aeration oxygen replenishing pond is rectangle pond, and pond is long is 3000mm, and pond is wide is 2000mm, and pond is 2000mm deeply; Aeration oxygen replenishing pond is installed centrifugal aeration machine and on the pool wall in the aeration oxygen replenishing pond adjacent with disinfection by ultraviolet light pond, foam separatory funnel is installed.This aerator has two functions, and the one, play oxygenation effect, pass into pure oxygen at the air entry of aerator, more than dissolved oxygen content reaches 20mg/L, if pass into ozone simultaneously, have both again disinfection function.
Like this, compared with disclosed patented technology, on gas-liquid mixing pump and loose device of air, save liquid oxygen more than 50%, can further improve output.The 2nd, when aerator operation, produce a large amount of foams, impurity in foam surface adsorbed water, foam enters foam separatory funnel, and impurity is separated with foam, plays the effect purifying water.
5, design biofilter is channeltype, not classification, the full pipeline mode connecting, and has solved near the drawback of " have a leg-of-mutton current dead angle area biofilter board of classification, dead angle is unfavorable for water quality exchange, is also unfavorable for biomembranous formation "; Another feature of channeltype is to extend flowing water path, and its flow process extends more than one times than original biofilter, significantly improves purification efficiency, reduces progression, reduces flowing water dead angle, reduces costs, and increases water quality.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention;
Fig. 2 is the facility allocation plan of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, one embodiment of the present of invention are illustrated.
The process chart of ecological closed cycle water fish-cultivating method as shown in Figure 1, comprises the water source of breeding fish, water distribution workshop, fish farming shop, Separation of Solid and Liquid purification facility and sewage disposal system.
As Fig. 2 has provided the configuration of ecological closed cycle water fish-cultivating facility.Comprise:
1, set up the water source 31 of breeding fish: select the natural sea-water bank of good environment condition, place sets up retaining sedimentation basin 1 at inshore intake, and be provided with a sluice 2 at the correspondence direction that seawater enters retaining sedimentation basin, build pool area 20000m
2above.Retaining sedimentation basin 1 is sandy soil structures, should bank protection, avoid impacting muddy water because of stormy waves.The appearance water depth of retaining sedimentation basin 1 should be more than 3m, is conducive to the water quality that keeps stable.
Near retaining sedimentation basin 1, make geothermal well 3, salt water well 4, fresh water well 5; Supplied water to water distribution workshop 8 by retaining sedimentation basin 1, salt water well 4, fresh water well 5 and geothermal well 3.
2, set up water distribution workshop 8: comprise two the first sand filters 6, two the second sand filter 7, two distribution reservoirs 9, aqueduct 30;
The natural sea-water that retaining sedimentation basin 1 provides contains the impurity such as silt, need to after second sand filter 7 twice filtration, be input to distribution reservoir 9 again.
The saline groundwater providing of salt water well 4, how containing fish being had to the metal ions such as injury iron, manganese, through first sand filter 6 twice filtration, is effectively removed after the metal ion such as iron, manganese, then is input to distribution reservoir 9.
The water harmful substance that geothermal well 3 and fresh water well 5 provide is less, does not need to filter, and is directly inputted to the distribution reservoir 9 in water distribution workshop 8.
Distribution reservoir 9, its height 3m, the water capacity of each distribution reservoir is 200m
3, be deployed into the fish culture water of suitable temperature and salinity with natural sea-water, GEOTHERMAL WATER, fresh water and saline groundwater 9 li of distribution reservoirs, flow automatically to fish farming shop 10 by aqueduct 30.
3, set up fish farming shop 10: comprise 16 and 20 crawls 11 of two high-order water feeders;
High-order water feeder 16 is rectangle pond, and long is 1000mm, and wide is 600mm, is 2000mm deeply.High-order water feeder 16 is than the high 1000mm of crawl 11, the water inlet of high-order water feeder 16 is connected with distribution reservoir 9 by aqueduct 30, its delivery port is equipped with vibration means for main pipe for supplying water road 29, is connected with the crawl 11 at partition wall position, close each pond by each branch water-supply-pipe of drawing on vibration means for main pipe for supplying water road 29; Wherein, high-order water feeder 16 is 1000mm higher than the difference in height in crawl 11, two ponds; Water is input to crawl 11 by the vibration means for main pipe for supplying water road 29 that can be successfully 200mm through caliber.
4, set up Separation of Solid and Liquid purification facility 32: comprise one-level solid-liquid separation tank 20, secondary solid-liquid separation tank 17, front end diversion basin 22, water pump groove 18, water circulating pump 19, three grades of solid-liquid separation tanks 13, end diversion basin 23, backwater main pipeline 21, sewage conduct 24, biofilter 12, aeration oxygen replenishing pond 14 and disinfection by ultraviolet light ponds 15; Wherein:
One-level solid-liquid separation tank 20 is brick mix structure, and pool wall is circular, is conical at the bottom of pond, pool wall diameter is 1000mm, and tapering is 4, is respectively equipped with the entery and delivery port of opposite direction on pool wall, the Inlet and outlet water direction of entery and delivery port, near the tangential direction of pool wall inner circle, forms a determining deviation each other; Establish blow-off pipe at conical Chi Di center, caliber 110mm, which is provided with sewage draining valve.One-level solid-liquid separation tank 20 be positioned at adjacent 2 crawl exterior angles intersection; The particle such as ight soil, remaining bait that the backwater of discharging from the water return pipeline of crawl 11 contains fish, this backwater enters into one-level solid-liquid separation tank 20 and forms eddy flow and reach Separation of Solid and Liquid object, the sewage producing after separating is discharged by the bottom blow-down pipe of one-level solid-liquid separation tank 20, and the sewage disposal system 33 flowing into outside fish farming shop through sewage conduct 24 purifies; The backwater main pipeline 21 that to purify waste water by caliber be 315mm of one-level Separation of Solid and Liquid flows into secondary solid-liquid separation tank 17 and carries out Separation of Solid and Liquid for the second time.
(17 is square pond to described secondary solid-liquid separation tank, and four jiaos is Rouno Cormer Pregrinding Wheel, is conical at the bottom of pond, and pool side is long is 5000mm, and tapering is 10, and pool wall is provided with entery and delivery port, and entery and delivery port shifts to install relatively; Establish blow-off pipe at conical Chi Di center, caliber 160mm, which is provided with sewage draining valve.Sewage after Separation of Solid and Liquid is sent to sewage disposal system 33 by sewage conduct 24 and purifies for the second time, and secondary solid-liquid separation tank 17 is than the high 500mm of water pump groove 18, and the overflow of purifying waste water after separation enters water pump groove 18.
Water pump groove 18 is rectangle, and long is 5000mm, and wide is 1000mm, is 1500mm deeply, the other water circulating pump 19 of establishing of water pump groove 18.
Water circulating pump 19, adopts mixed-flow pump, diameter 200mm, the amount of pumping up water 200mm per hour
3, 5500 watts of power, and frequency converter is installed, can save the energy; By water circulating pump 19, the water in water pump groove 18 is transported to front end diversion basin 22.
Front end diversion basin 22 is rectangle, and long is 2000mm, and wide is 1000mm, is 2000mm deeply, and the function of this front end diversion basin 22 is to subdue the impulse force of being carried the water of coming by water circulating pump 19; 1/3 place, pool wall top at the front end diversion basin 22 that closes on three grades of solid-liquid separation tanks 13 arranges 1 mouth of a river excessively, and this bleeder is designed to flat-sided shape, and bleeder is wide is 500mm, and height is 1000mm.Water flows into three grades of solid-liquid separation tanks 13 via bleeder and carries out Separation of Solid and Liquid for the third time.
Three grades of solid-liquid separation tanks 13, these three grades of solid-liquid separation tanks 13 are than the high 1000mm of crawl 11; These three grades of solid-liquid separation tanks 13 are square pond, and the length of side is 2000mm, and four jiaos is Rouno Cormer Pregrinding Wheel, circle of position taper at the bottom of pond, tapering is 4, and pool wall is provided with entery and delivery port, and entery and delivery port shifts to install relatively, described entery and delivery port be the identical rectangle of size, it is wide is 300mm, height is 1000mm; Establish blow-off pipe at conical Chi Di center, caliber 110mm, which is provided with sewage draining valve; Three grades of solid-liquid separation tanks 13 are positioned at biofilter, and 5 three grades of identical solid-liquid separation tanks are set continuously, hang stereo-elastic biologic packing material in it.Water flows into and flows out through the diagonal angle of three grades of solid-liquid separation tanks, form centrifugal rotational flow precipitate and separate, after 5 three grades of Separation of Solid and Liquid, the sewage after separation is transported to waste water treatment cell system 33 by sewage conduct 24 and purifies, and purifying waste water after separation is transported to end diversion basin 23.
Biofilter 12, biofilter 12 is channeltype, not classification, perforation entirely, pond overall length is 45000mm, and pond is wide is 2000mm, and pond is 2000mm deeply.Interior every square metre of suspension 100 left and right of stereo-elastic biologic packing material, biofilter 12, this stereo-elastic biologic packing material is made up of polyethylene filament, and shape is test-tube brush seemingly, every diameter 150mm, its effective length (having a part) is 1800mm.The major function of biofilter 12 is to utilize deliquescent ammonia nitrogen, nitrite in the epontic microbial film decomposition water of biologic packing material.Current are through biofilter 12, and water quality further purifies and cleans.Biofilter 12 is than the high 200mm in aeration oxygen replenishing pond 14, and the water overflow of biofilter enters aeration oxygen replenishing pond 14.
Aeration oxygen replenishing pond 14 is rectangle pond, and pond is long is 3000mm, and pond is wide is 2000mm, and pond is 2000mm deeply; The aerator of 1 2.2 kilowatts is installed in the aeration basin bottom near biofilter 12, is utilized aerator oxygenation, in aerator air inlet pipe, pass into pure oxygen, make more than the dissolved oxygen content of cycle water reaches 20mm/L, to guarantee having enough oxygen in crawl.Start aerator, make Chi Shui reach fluidized state, surface forms foam, on the pool wall in the aeration oxygen replenishing pond adjacent with disinfection by ultraviolet light pond 15, foam separatory funnel is installed and is separated foam.The water of oxygenation enters disinfection by ultraviolet light pond 15 by the square mouth of a river of crossing of pool wall bottom length of side 500mm that is located at aeration oxygen replenishing pond.
Disinfection by ultraviolet light pond 15 is rectangle pond, and pond is long is 1000mm, and pond is wide is 600mm, and pond is 2000mm deeply, and ultraviolet ray disinfector is installed in disinfection by ultraviolet light pond, and this ultraviolet ray disinfector comprises quartz socket tube, quartz burner and caisson; Wherein:
Quartz burner is 75 watts, totally 21, and point 3 row configurations, 7 of every row, often itemize and solely control;
The diameter of quartz socket tube is 25mm;
Caisson is made of PVC plate, has the installing hole of distribution on caisson, and aperture is 26mm, and pitch-row is 80mm, and the quartz socket tube that quartz burner is installed is inserted in the installing hole of caisson.Can directly insert or extract like this, be convenient to install and clean.
Through after disinfection by ultraviolet light, can kill virus, bacterium and protozoa in water.So far water has completed system-wide purified treatment.Disinfection by ultraviolet light pond 15 is communicated with the high-order water feeder 16 of fish farming shop 10, and the water of purification is sent into high-order water feeder 16.
5, set up sewage disposal system 33: sewage disposal system comprises one-level waste water treatment pond 25, B-grade sewage processing pond 27; Wherein:
One-level waste water treatment pond 25 water inlets are connected with Separation of Solid and Liquid purification facility 32 by sewage conduct 24, described one-level waste water treatment pond 25, pond area 10000m
2, the shellfish of cultivation for purifying waste water, as multiple shellfishes such as Yi razor clam, Mactra veneriformis, by the natural drainage habit of shellfish, purifies muddy sewage water filtration.Flow into B-grade sewage purification pond 27 through after treatment the purifying waste water in one-level waste water treatment pond 25 by pipeline 26;
B-grade sewage purifies pond 27, pond area 10000m
2.Pasture and water and algae in the interior cultivation in secondary purification pond 27 for purifying waste water, as macros such as the climing algaes in river, these algae absorb the rich nutritive material in water, and the degradation of pollutant in water is purified, and make water reach the standard that can breed fish again.Purify after treatment the purifying waste water in pond 27 by B-grade sewage and send into retaining sedimentation basin 1 through sand filtration wall, concrete duct 28.
So far, the backwater of breeding fish has completed a complete totally enclosed circulation, and such mode of breeding fish, had both protected inner breeding environment, had protected again external environment condition, reached zero-emission.
It should be noted that, in the above-described embodiments, crawl 11 is circular pond also, and one-level solid-liquid separation tank 20 is square pond (four jiaos is circular) also, and secondary solid-liquid separation tank 17 is circular pond also, three grades of also circular ponds of solid-liquid separation tank 13.
Claims (7)
1. an ecological closed cycle water fish-cultivating method, comprising:
(1) near the water source (31) of breeding fish: set up retaining sedimentation basin (1) at inshore intake place, beat geothermal well (3), salt water well (4) and fresh water well (5) retaining sedimentation basin (1); Supplied water to water distribution workshop (8) by retaining sedimentation basin (1), geothermal well (3), salt water well (4) and fresh water well (5);
(2) water distribution workshop (8): water distribution workshop (8) comprise first, second sand filter (6,7), distribution reservoir (9), aqueduct (30); The second sand filter (7) is connected with retaining sedimentation basin (1) by pipeline, and the natural sea-water after filtering is offered to distribution reservoir (9); The first sand filter (6) is connected with salt water well (4), after the saline groundwater of salt water well (4) is filtered, offers distribution reservoir (9); Distribution reservoir (9) is connected by pipeline with fresh water well (5), the geothermal well (3) of supplying with fresh water and GEOTHERMAL WATER respectively; Be deployed into the temperature that is suitable for breeding fish and the water of salinity with natural sea-water, GEOTHERMAL WATER, fresh water and saline groundwater distribution reservoir (9) is inner; This distribution reservoir (9) is connected with fish farming shop (10) by aqueduct (30), and supplies water to fish farming shop (10);
(3) fish farming shop (10): comprise high-order water feeder (16) and the multiple crawls (11) that formed by partition wall interval each other; The water inlet of high-order water feeder (16) is connected with distribution reservoir (9) by aqueduct (30), its delivery port is equipped with vibration means for main pipe for supplying water road (29), is connected with the crawl (11) at partition wall position, close each pond by each branch water-supply-pipe of drawing on vibration means for main pipe for supplying water road (29); Wherein, high-order water feeder (16) is higher than crawl (11), and the difference in height in two ponds is 800-1200mm; At the bottom of the pond of crawl (11), central authorities arrange water return pipeline, and this water return pipeline is connected with Separation of Solid and Liquid purification facility (32);
(4) Separation of Solid and Liquid purification facility (32): comprise one-level solid-liquid separation tank (20), secondary solid-liquid separation tank (17), front end diversion basin (22), water pump groove (18), water circulating pump (19), three grades of solid-liquid separation tanks (13), end diversion basin (23), backwater main pipeline (21), sewage conduct (24), biofilter (12), aeration oxygen replenishing pond (14) and disinfection by ultraviolet light pond (15); Wherein:
One-level solid-liquid separation tank (20) is that the backwater that crawl (11) is given off by water return pipeline carries out Separation of Solid and Liquid for the first time, the sewage producing after separating is input to sewage disposal system (33) by sewage conduct (24) and purifies, purifying waste water after separation enters secondary solid-liquid separation tank (17) by backwater main pipeline (21) and carries out solid-liquid and separate for the second time, sewage after separation is again sent to sewage disposal system (33) by sewage conduct (24) and purifies, purifying waste water after separating flowed into water pump groove (18), be transported to and be transported to again three grades of solid-liquid separation tanks (13) after front end diversion basin (22) and carry out Separation of Solid and Liquid for the third time by water circulating pump (19), sewage after separation is transported to waste water treatment cell system (33) by sewage conduct (24) and purifies, finally purifying waste water after separating is transported to end diversion basin (23), to purify waste water and be transported to biofilter (12) by the mouth of a river excessively on end diversion basin (23),
Biofilter (12) is channeltype, in biofilter (12), fills stereo-elastic biologic packing material, will purify waste water by being transported to aeration oxygen replenishing pond (14) after biofilter (12) processing;
Aeration oxygen replenishing pond (14) is communicated with disinfection by ultraviolet light pond (15), and aerator is installed in the bottom of aeration oxygen replenishing pond (14);
Disinfection by ultraviolet light pond (15) is communicated with the high-order water feeder (16) of fish farming shop (10), and ultraviolet ray disinfector is installed in disinfection by ultraviolet light pond (15);
(5) sewage disposal system (33): sewage disposal system comprises one-level waste water treatment pond (25), B-grade sewage processing pond (27); Wherein:
One-level waste water treatment pond (25) water inlet is connected with Separation of Solid and Liquid purification facility (32) by sewage conduct (24), the shellfish of cultivation for purifying waste water in described one-level waste water treatment pond (25), purifies pond (27) through one-level waste water treatment pond (25) after treatment purifying waste water by pipeline (26) inflow B-grade sewage;
B-grade sewage purifies pasture and water and the algae of cultivation for purifying waste water in pond (27); Purify after treatment the purifying waste water in pond (27) by B-grade sewage and send into retaining sedimentation basin (1) through sand filtration wall, concrete duct (28).
2. ecological closed cycle water fish-cultivating method according to claim 1, it is characterized in that: the pool wall of the described one-level solid-liquid separation tank of step (4) (20) is for circular, at the bottom of pond, be conical, pool wall diameter is 1000mm, tapering is 4, on pool wall, be respectively equipped with the entery and delivery port of opposite direction, the Inlet and outlet water direction of entery and delivery port, near the tangential direction of pool wall inner circle, forms a determining deviation each other; Establish blow-off pipe at conical Chi Di center, caliber 110mm, which is provided with sewage draining valve.
3. ecological closed cycle water fish-cultivating method according to claim 1, it is characterized in that: the described secondary solid-liquid separation tank of step (4) (17) is square pond, four jiaos is Rouno Cormer Pregrinding Wheel, at the bottom of pond, be conical, pool side is long is 5000mm, tapering is 10, and pool wall is provided with entery and delivery port, and entery and delivery port shifts to install relatively; Establish blow-off pipe at conical Chi Di center, caliber 160mm, which is provided with sewage draining valve.
4. ecological closed cycle water fish-cultivating method according to claim 1, is characterized in that: the three grades of solid-liquid separation tanks (13) described in step (4) are higher than crawl (11), and the difference in height in two ponds is 1000mm; Three grades of solid-liquid separation tanks (13) are square pond, four jiaos is Rouno Cormer Pregrinding Wheel, at the bottom of pond, be conical, pool side is long is 2000mm, and tapering is 4, and pool wall is provided with entery and delivery port, entery and delivery port shifts to install relatively, described entery and delivery port be the identical rectangle of size, it is wide is 300mm, height is 1000mm; Establish blow-off pipe at conical Chi Di center, caliber 110mm, which is provided with sewage draining valve; Three grades of solid-liquid separation tanks (13) are positioned at biofilter, and multiple three grades of identical solid-liquid separation tanks are set continuously, hang stereo-elastic biologic packing material in it.
5. ecological closed cycle water fish-cultivating method according to claim 1, is characterized in that: the described biofilter (12) of step (4) is channeltype, and pond overall length is 45000mm, and pond is wide is 2000mm, and pond is 2000mm deeply; 100 of every square metre of biofilter (12) suspension biologic packing materials, every diameter 150mm, effective length 1800mm.
6. ecological closed cycle water fish-cultivating method according to claim 1, is characterized in that: the described aeration oxygen replenishing pond (14) of step (4) is rectangle pond, and pond is long is 3000mm, and pond is wide is 2000mm, and pond is 2000mm deeply; The pool wall bottom in aeration oxygen replenishing pond is provided with the foursquare mouth of a river of crossing of length of side 500mm and is communicated with disinfection by ultraviolet light pond, on the pool wall in the aeration oxygen replenishing pond adjacent with disinfection by ultraviolet light pond (15), foam separatory funnel is installed.
7. ecological closed cycle water fish-cultivating method according to claim 1, it is characterized in that: the described disinfection by ultraviolet light pond (15) of step (4) is rectangle pond, pond is long is 1000mm, pond is wide is 600mm, Chi Shen is 2000mm, ultraviolet ray disinfector is installed in disinfection by ultraviolet light pond, and this ultraviolet ray disinfector comprises quartz socket tube, quartz burner and caisson; Wherein:
Quartz burner is 75 watts, totally 21, and point 3 row configurations, 7 of every row, often itemize and solely control;
The diameter of quartz socket tube is 25mm;
Caisson is made of PVC plate, has the installing hole of distribution on caisson, and aperture is 26mm, and pitch-row is 80mm, and the quartz socket tube that quartz burner is installed is inserted in the installing hole of caisson.
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