CN107265755A - The water treatment system and method for sealing and circulating aquaculture - Google Patents
The water treatment system and method for sealing and circulating aquaculture Download PDFInfo
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- CN107265755A CN107265755A CN201710423052.3A CN201710423052A CN107265755A CN 107265755 A CN107265755 A CN 107265755A CN 201710423052 A CN201710423052 A CN 201710423052A CN 107265755 A CN107265755 A CN 107265755A
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- Prior art keywords
- filter material
- water
- light filter
- baf
- unit
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 163
- 238000009360 aquaculture Methods 0.000 title claims abstract description 65
- 244000144974 aquaculture Species 0.000 title claims abstract description 64
- 238000007789 sealing Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 27
- 239000000463 material Substances 0.000 claims abstract description 81
- 235000013311 vegetables Nutrition 0.000 claims abstract description 44
- 238000012258 culturing Methods 0.000 claims abstract description 37
- 239000002351 wastewater Substances 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000009395 breeding Methods 0.000 claims abstract description 12
- 230000001488 breeding effect Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 8
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000005273 aeration Methods 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 17
- 239000003344 environmental pollutant Substances 0.000 claims description 14
- 239000005416 organic matter Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 14
- 231100000719 pollutant Toxicity 0.000 claims description 14
- 241001465754 Metazoa Species 0.000 claims description 11
- 239000006228 supernatant Substances 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 241000196324 Embryophyta Species 0.000 claims description 6
- 230000008635 plant growth Effects 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- 210000003608 fece Anatomy 0.000 claims description 4
- 238000005276 aerator Methods 0.000 claims description 3
- 238000006065 biodegradation reaction Methods 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 150000003016 phosphoric acids Chemical class 0.000 claims description 3
- 230000028327 secretion Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 claims description 2
- 238000012545 processing Methods 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 13
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 23
- 241000251468 Actinopterygii Species 0.000 description 21
- 241000276701 Oreochromis mossambicus Species 0.000 description 16
- 229910002651 NO3 Inorganic materials 0.000 description 10
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 10
- 230000015556 catabolic process Effects 0.000 description 8
- 238000006731 degradation reaction Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 229910019142 PO4 Inorganic materials 0.000 description 6
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 6
- 239000010452 phosphate Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000012010 growth Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012851 eutrophication Methods 0.000 description 3
- 230000004060 metabolic process Effects 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000011953 bioanalysis Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 210000000416 exudates and transudate Anatomy 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 244000106835 Bindesalat Species 0.000 description 1
- 235000000318 Bindesalat Nutrition 0.000 description 1
- 235000006008 Brassica napus var napus Nutrition 0.000 description 1
- 240000000385 Brassica napus var. napus Species 0.000 description 1
- 244000221633 Brassica rapa subsp chinensis Species 0.000 description 1
- 235000010149 Brassica rapa subsp chinensis Nutrition 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000003975 animal breeding Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000037323 metabolic rate Effects 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
- A01G31/06—Hydroponic culture on racks or in stacked containers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/06—Arrangements for heating or lighting in, or attached to, receptacles for live fish
- A01K63/065—Heating or cooling devices
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
- Hydroponics (AREA)
Abstract
The invention provides a kind of water treatment system of sealing and circulating aquaculture, including culturing pool, light filter material BAF units, vegetable aquaculture cultivating stand, light filter material BAF coupling O3Unit and heat exchange unit, wherein, the delivery port of the culturing pool is connected with the water inlet of the light filter material BAF units, the delivery port of the light filter material BAF units is connected with the water inlet of the vegetable aquaculture cultivating stand, and the delivery port of the vegetable aquaculture cultivating stand couples O with the light filter material BAF3The water inlet connection of unit, the light filter material BAF couples O3The delivery port of unit is connected with the water inlet of the heat exchange unit, and the delivery port of the heat exchange unit is connected with the water inlet of the culturing pool.The beneficial effects of the invention are as follows：Realize and the depth carbon elimination of breeding wastewater is decolourized and high efficiente callback nitrogen source, make aquatic cultivation water system altitude self-loopa, with more preferable nitrification effect, decolorizing effect.
Description
Technical field
The present invention relates to water process, more particularly to a kind of water treatment system and method for sealing and circulating aquaculture.
Background technology
China is one of fishery country the biggest in the world, the natural discharge of traditional agriculture and animal husbandry aquiculture waste water
Exacerbate the social concern of water environment pollution and shortage of water resources.There are some researches show, 1kg fish is cultivated with traditional thick mad formula, it is dirty
Dye water remediation needs to pay the cost of several kilograms of fishes.Therefore, the developed countries such as the eighties in last century, European Union and Australia are first
The discharge standard of fish culture waste water has been put into effect afterwards.In recent years, China also puts into effect fish (Tilapia mossambica) discharge of wastewater mark of correlation in succession
Standard, and industrialization, the aquaculture pattern of clustering are begun one's study and promote, breeding wastewater discharge is reduced, is alleviated to water environment
Harm.Circulating water cultivation pattern is a kind of production model of industrialization degree highest in all multi-modes of aquaculture, and it is with flowing
Water type aquaculture model is compared, with several respects a little：(1) cultivation density is high, and unit water consumption yield is high；(2) can economize on water 90% with
On, save land up to 99%；(3) small, sustainable production is relied on to environmental condition, not climate and regional condition limitation；(4) produce
Industrialization degree is high, and flow is controllable, can effectively prevent fish (Tilapia mossambica) disease；(5) Water Resources Section recycles, and section can be achieved
Can emission reduction, environmentally friendly production.The developed countries such as European Union, the U.S. and Japan have widelyd popularize circulation aquaculture technology, and
It is large-scale to carry out industrialized production.Although China starts late in terms of basic research, aquaculture is circulated in recent years
Correlative study and application are also quickly grown, and especially have more achievement in terms of craft screening and optimization.
Pollutant in breeding wastewater mainly includes：Suspension, organic matter and ammonia nitrogen, wherein ammonia nitrogen concentration are influence fish
(Tilapia mossambica) grows most important water quality index.At present, the closed circulation cultivation system of main flow is main (is removed and suspended with micro-filtration
Thing), based on moving bed biological filter tank (degradation of organic substances and ammonia nitrogen) and advanced treatment unit (heat exchange and sterilization) combine, it is mobile
Biofilter is core cell therein, but is due to that traditional biological filter tank biomass is smaller, and ammonia nitrogen degradation efficiency is low, and to small
Particles interception capacity is limited, causes the technique floor space big, contaminant removal efficiency is low.In addition, right in traditional handicraft
The tupe of ammonia nitrogen mainly includes two kinds：One is that ammonia nitrogen only is converted into nitrate nitrogen by microbial degradation, leaves it in circulation
Accumulated in water body；Two be increase one-level movement biological filter unit, and it is N to continue its denitrification after ammonia nitrogen is converted to nitrate nitrogen2。
Although fish (Tilapia mossambica) itself are to the NO in water body3 -- N tolerances are extremely strong, in 800mg/L NO3 -Still may be used in-N water environments
To grow, but the NO of high concentration3 -- N enrichments are easily caused body eutrophication, dissolved oxygen in water body are significantly consumed, so that unfavorable
In fish (Tilapia mossambica) existence.Such as in technique unit, increase denitrification process unit, then will the occupation of land of increase technique, technique base
Build up this and operating cost.Therefore, it is following development trend to build efficient sealing and circulating water breeding technique.
The content of the invention
In order to solve the problems of the prior art, the invention provides a kind of water treatment system of sealing and circulating aquaculture
With method.
The invention provides a kind of water treatment system of sealing and circulating aquaculture, including culturing pool, light filter material BAF are mono-
Member, vegetable aquaculture cultivating stand, light filter material BAF coupling O3Unit and heat exchange unit, wherein, the delivery port of the culturing pool with
The water inlet connection of the light filter material BAF units, delivery port and the vegetable aquaculture of the light filter material BAF units are cultivated
The water inlet connection of frame, the delivery port of the vegetable aquaculture cultivating stand couples O with the light filter material BAF3The water inlet of unit
Connection, the light filter material BAF couples O3The delivery port of unit is connected with the water inlet of the heat exchange unit, the heat exchange
The delivery port of unit is connected with the water inlet of the culturing pool.
As a further improvement on the present invention, the culturing pool goes out provided with bottom delivery port, bottom evacuation port and supernatant
The mouth of a river, the supernatant delivery port of the culturing pool is connected with the water inlet of the light filter material BAF units.
As a further improvement on the present invention, the bottom delivery port is connected with pretreatment unit, the pretreatment unit
For grill unit, the water outlet product of the pretreatment unit are connected with the water inlet of the light filter material BAF units.
As a further improvement on the present invention, the pretreatment unit is rotary drum type fine grate, the rotary drum type fine grate
Grid gap be 3-5mm.
As a further improvement on the present invention, the light filter material BAF units are on the first up flow type filter tank, described first
The top in streaming filter tank is provided with the first filter tank baffle plate, and the inside in the first up flow type filter tank is filled with the first light filter material, institute
The first light filter material is stated under the baffle plate of first filter tank, the water inlets of the light filter material BAF units is located at described the
The bottom in one up flow type filter tank, the delivery port of the light filter material BAF units is located at the top in the first up flow type filter tank, institute
The delivery port for stating light filter material BAF units is located on the baffle plate of first filter tank, and the bottom in the first up flow type filter tank is set
There is the first aeration head, first aeration head is connected with air aeration device.
As a further improvement on the present invention, the light filter material BAF couplings O3Unit is the second up flow type filter tank, described
The top in the second up flow type filter tank is provided with the second filter tank baffle plate, and the inside in the second up flow type filter tank is filtered filled with the second lightweight
Material, second light filter material is located under the baffle plate of second filter tank, and the light filter material BAF couples O3The water inlet of unit
Bottom positioned at the second up flow type filter tank, the light filter material BAF couples O3The delivery port of unit is located on described second
The top in streaming filter tank, the light filter material BAF couples O3The delivery port of unit is located on the baffle plate of second filter tank, described
The bottom in the second up flow type filter tank is provided with the second aeration head, and second aeration head is connected with O3Aerator.
As a further improvement on the present invention, the volume in the second up flow type filter tank is the first up flow type filter tank
The half of volume.
As a further improvement on the present invention, the vegetable aquaculture cultivating stand is matrix module, the vegetable aquaculture cultivation
The water inlet of frame is arranged on the side of the matrix module, and the delivery port of the vegetable aquaculture cultivating stand is arranged on the matrix norm
The opposite side of block, the delivery port of the vegetable aquaculture cultivating stand is provided with screen pack.
As a further improvement on the present invention, the heat exchange unit is provided with control in heat-exchanger tank, the heat-exchanger tank
The electric circulating heater of water temperature processed.
Present invention also offers a kind of method for treating water of sealing and circulating aquaculture, the breeding wastewater produced in culturing pool
Preprocessed grid is removed after big particle diameter suspension, into light filter material BAF units, by retention and biodegradation, is given up
Organic matter in water is degraded to carbon dioxide and water, NH4 +- N is efficiently converted to the NO that plant available is utilized3 --N；Lightweight is filtered
Expect the phosphate (PO that the water outlet of BAF units enters in vegetable aquaculture cultivating stand, aquatic animal excreta4 3-- P) class and filtered through lightweight
Expect the nitrate (NO of BAF units conversion3 -- N) pollutant, absorbed and removed as the nutriment needed for plant growth, it is real
Existing resource high-efficiency reuse and purification of water quality double effects；Then, the water outlet of vegetable aquaculture cultivating stand enters rearmounted light filter material BAF
Couple O3Unit, the hardly degraded organic substance for going to be brought by secretions from plant roots in water removal by advanced treating, and water outlet is entered
Row decolourizes and sterilized；Finally by heat exchange unit, the water temperature of recirculated water, effluent recycling to culturing pool are controlled.
The beneficial effects of the invention are as follows：By such scheme, realize and the depth carbon elimination of breeding wastewater is decolourized and efficiently returned
Nitrogen source is received, makes aquatic cultivation water system altitude self-loopa, with more preferable nitrification effect, decolorizing effect.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the water treatment system of sealing and circulating aquaculture of the invention.
Fig. 2 is a kind of operational effect schematic diagram of the water treatment system of sealing and circulating aquaculture of the invention.
Fig. 3 is a kind of operational effect schematic diagram of the water treatment system of sealing and circulating aquaculture of the invention.
Fig. 4 is a kind of operational effect schematic diagram of the water treatment system of sealing and circulating aquaculture of the invention.
Fig. 5 is a kind of operational effect schematic diagram of the water treatment system of sealing and circulating aquaculture of the invention.
Embodiment
The invention will be further described for explanation and embodiment below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, a kind of water treatment system of sealing and circulating aquaculture, including culturing pool 1, pretreatment list
Member 6, light filter material BAF units 2, vegetable aquaculture cultivating stand 3, light filter material BAF couplings O3Unit 4, heat exchange unit 5.
(1) culturing pool 1.Culturing pool 1 needs periodically to feed bait into culturing pool as the living space of aquatic animal, and
The bait and aquatic animal excreta of residual cause very big pollution, influence aquatic animal growth to breeding water body.It is aquatic to ensure
High efficiency animal is grown, and the pollutant in water body efficiently need to be removed, to realize that high density closed circulation aquatic products is cultivated.
Culturing pool 1 is provided with bottom delivery port, bottom evacuation port and supernatant water outlet using the stainless steel structure of cone
Mouthful.Culturing pool 1 makes most of fish (Tilapia mossambica) excrement of generation pass through gravity using the principle similar to vertical sedimentation basin
Rapid precipitation is acted in bottom of pond, and by bottom discharge mouthful, follow-up pretreatment unit 6 (preferably grill unit) is quickly entered,
To remove a large amount of solid-state fish (Tilapia mossambica) excrement, so as to effectively control because excrement dissolving causes water body ammonia nitrogen elevated rapidly
Risk.In addition, the supernatant delivery port set, because big particle diameter suspension is excluded by bottom discharge mouthful, supernatant water source
Mainly based on small particle suspension and dissolubility pollutant, can be directly entered light filter material BAF units 2 is reduced.Bottom
Mud discharging mouth, after terminating for the culture-cycle, the drainage channel for cleaning culturing pool 1.
(2) pretreatment unit 6.Pretreatment unit 6 uses rotary drum type fine grate, and the gap of fine fack is 3-5mm.Culturing pool
1 waste water is entered after pretreatment unit 6 by culturing pool bottom delivery port, and fine fack enters to big particle diameter suspension contained in waste water
Row effectively catching, removal efficiency is up to 70%, concentration of suspension in water outlet is less than 50mg/L.The subsequent waste water of water outlet enters
Light filter material BAF units 2, account for 60% of total treating capacity in BAF into the wastewater flow rate in BAF after pretreatment.
(3) light filter material BAF units 2.Light filter material BAF units 2 using up flow type filter tank pattern, filter tank baffle plate setting in
The first light filter material 21 (polystyrene) of filling, the floor height 2.5m of the first light filter material 21 inside filter tank top, filter tank, first is light
The density of matter filtrate 21 is slightly less than water, may float on the water surface；The particle diameter of first light filter material 21 is in 3-5mm, the first lightweight
The particle diameter of filtrate 21 is more uniform, is conducive to water distribution and gas distribution.The water inlet and aeration head of light filter material BAF units 2 are respectively provided with
In filter tank bottom, aeration head is connected with air aeration device 22, using air aeration, and delivery port is arranged at filter tank top.At this
Unit collaboration adds a small amount of saleratus, and for controlling recirculated water pH, dosage is controlled in 3-6mg/Ld.
BAF water source mainly include two parts, wherein 60% come from the water outlet of pretreatment unit 6, in addition 40% essentially from
The supernatant water outlet of culturing pool 1, suspension content of this part water itself is relatively low, can be directly entered light filter material BAF units 2.It is useless
Water enters after BAF, the effectively catching through microbial degradation in filtering ponds and filtrate, and effective ore deposit of low-concentration organic can be achieved
Change, the high efficiency nitrification of low-concentration ammonia-nitrogen, effective removal of small size particle；Finally it is less than the concentration of suspension in water outlet
5mg/L, ammonia nitrogen concentration is less than 0.5mg/L, and TOC concentration is less than 10mg/L, and N pollutants are by NH4 +- N form is converted to NO3 --N
Form exist.
(4) vegetable aquaculture cultivating stand 3.Vegetable aquaculture cultivating stand 3 is using the matrix module for being readily disassembled and assembling, Mei Geju
Front product is 360cm*80cm, according to the nominal mix matrix quantity of culturing pool 1, is the supporting square of 400L cultivation waters at present
Battle array.Vegetable aquaculture cultivating stand 3 uses stainless steel structure, from side water inlet, and other side water outlet, water outlet goes out to be provided with grid, cuts
Stay part root system cast.
The water source of vegetable aquaculture cultivating stand 3 N, P pollutant contained in BAF water outlets, water source will be directly as
Nutrient source, ensures vegetable growth.Vegetable aquaculture cultivating stand 3 mainly as can for the well developed root system such as romaine lettuce and pakchoi vegetable
Colza class, can largely absorb in water source as BAF units convert obtained by NO3 -The PO not removed in-N and breeding wastewater by BAF4 3--
P.After this unit, NO3 -- N is largely absorbed, and not only can control the nitrogen content in recirculated water, it is to avoid body eutrophication, also
Turn waste into wealth, be used as the nutrient source of vegetable growth.Finally make the NO in water outlet3 -- N concentration is less than 0.5mg/L, and TOC concentration is less than
10mg/L。
(5) light filter material BAF couples O3Unit 4.Light filter material BAF couples O3Unit 4 still uses up flow type filter tank mould
Set the second light filter material 41 in formula, pond, filtrate classification and filtrate height and baffle position are consistent with light filter material BAF units 2,
But filter tank volume is only the half of light filter material BAF units 2, while bottom uses O3Aerator 42 carries out O3Aeration, O3Aeration is dense
Degree control is in 500-1000 μ g/L.
The water source of this unit, which comes from, contains fish (Tilapia mossambica) growth metabolism meeting in the water outlet of vegetable aquaculture cultivating stand 3, waste water
The root exudates that long-chain organic matter and the plant growth metabolism of generation are produced, the part in these organic matters is with having
Color functional group long-chain organic matter, it is difficult to be biodegradable.With the increase of sealing and circulating number of times, hardly degraded organic substance constantly tires out in water
Product increases, it will have certain suppression to aquatic animal and plant growth.This unit couples O in light filter material BAF3In unit 4,
Using O3Aeration, efficient degradation is carried out to hardly degraded organic substance, while recirculated water is decolourized, and efficiently cutting by filter tank
Give over to the suspension flowed out to vegetable culturing disk.The final concentration of suspension made in water outlet is less than 5mg/L, and ammonia nitrogen concentration is less than
0.5mg/L, TOC concentration are less than 10mg/L, and N pollutants are by NH4 3+- N form is converted to NO3 -- N form is present.
(6) heat-exchanger tank 5.Heat-exchanger tank 5 passes through electric circulation system.The system is mainly used in yield and tolerance
All higher Rofe fish culture, therefore in the end of whole water circulation craft, temperature adjusting need to be carried out.Heat-exchanger tank 5 is mainly logical
Heating is crossed, makes recirculated water stability contorting at 25-30 DEG C.
Present invention also offers a kind of method for treating water of sealing and circulating aquaculture, the cultivation produced in culturing pool 1 is given up
The preprocessed grid of water is removed after big particle diameter suspension, into light filter material BAF units 2, by retention and biodegradation,
Organic matter and ammonia nitrogen in waste water are efficiently removed, NH3 4+- N is efficiently converted to the NO that plant available is utilized3 --N；Light filter material
The water outlet of BAF units 2 enters vegetable aquaculture cultivating stand 3, phosphoric acid salt in aquatic animal excreta and through light filter material BAF units
The nitrogen pollutant of conversion, is absorbed as the nutriment needed for plant growth and is removed, realize resource high-efficiency reuse and water quality
Purify double effects；Then, the water outlet of vegetable aquaculture cultivating stand 3 enters rearmounted light filter material BAF couplings O3Unit 4, passes through depth
The hardly degraded organic substance that degree processing is gone in water removal, and water outlet is decolourized and sterilized；Finally by heat exchange unit, control is followed
The water temperature of ring water, effluent recycling to culturing pool 1.
The water quality characteristicses of breeding wastewater are that suspension content is high, and after fish (Tilapia mossambica) excrement is scattered, particle diameter is smaller,
Less than 200um；Content of organics is low, with machine thing based on below C10 small molecule, but partial organic substances are containing coloured function
Group, it is difficult to degraded and remove by bioanalysis；Ammonia-nitrogen content is low, but fish (Tilapia mossambica) require high to the ammonia nitrogen in recirculated water, most
Good ammonia nitrogen concentration is less demanding in 1mg/L.Based on above-mentioned water quality characteristicses, it is desirable to which technique unit, which has, removes section that small particle suspends
Ability is stayed, with degradation of organic substances and the function of colourity is sloughed, with nitrification ammonia nitrogen and ability in extremely low level is controlled.
The present invention sealing and circulating cultivating system waste water circulation flow be：Culturing pool fish (Tilapia mossambica) excreta and residual
Bait enters water body, causes Suspended Matter in Water, organic matter and ammonia nitrogen to greatly improve, and produces fraction phosphate, to ensure
Fish (Tilapia mossambica) efficient and healthful grows, and waste water carries out circular regeneration.The waste water of the bottom deposit of culturing pool 1, passes through bottom discharge
Pipe enters still undecomposed excrement and other big particle diameter suspensions in pretreatment unit, waste water and removed herein, and the unit water outlet is made
Enter light filter material BAF units 2 for the water source of light filter material BAF units 260%.At the same time, the top suspension of culturing pool 1 is dense
The not high supernatant of degree, by top delivery port, as remaining 40% water sources of BAF, goes forward side by side with pretreatment unit water outlet, one
Enter light filter material BAF units 2.Waste water is in light filter material BAF units 2, and by microbial action, organic matter is significantly gone
Remove, most ammonia-nitrogen is also converted to nitrate nitrogen.The nitrate nitrogen and phosphate that subsequent waste water enters in vegetable growing unit, waste water are by vegetables
Absorb, effectively control in recirculated water nitrate nitrogen and phosphatic accumulative.So far, most of pollutant is removed in waste water, but by
The organic matter for the coloured functional group for being difficult to be degraded by bioanalysis that fish (Tilapia mossambica) metabolism is produced, point produced by vegetable root system
The organic matter such as secretion and a small amount of root system cast is remained in water outlet, therefore, and the water outlet of vegetable aquaculture cultivating stand 3 enters back into BAF+
O3Unit, under the filter tank effect of low concentration ozone oxidation and a small amount of resistant one of enrichment, completion has to difficult degradation
The depth mineralising of machine thing, the removal to small algae, and tiny root exudates is completed to retain.The subsequent water outlet of this unit is entered
Enter heat exchange unit, make circulation water management at 25-28 DEG C.So far organic matter in recirculated water, ammonia nitrogen, nitrate nitrogen, phosphate, suspension
Thing, colourity and temperature are all effectively controlled, and recirculated water is can be used for cultivation high density fish (Tilapia mossambica).
It is of the invention main using two-stage BAF as core process unit, it is strong using BAF interception capacities, remove fine particle size and suspend
Total nitrogen (TN) and organic matter (TCOD) concentration is controlled in thing (120 μm of d50 ＜), effective water body；And couple vegetable aquaculture cultivating stand
3, the nitrogen class and phosphoric acid salt pollutant that are available for plant absorption of the residual in reuse breeding wastewater are absorbed, by the pollution in waste water
Thing is turned waste into wealth；Simultaneously by pretreatment effectively control fish (Tilapia mossambica) excrement residence time in water, pass through heat exchange list
Member control water temperature, at utmost reduces influence of the natural environment to cultivating system.
Actual cycle water treatment efficiency
The discarded object output speed of culturing pool 1 is as shown in table 1, with the increase of culturing pool run time, amount of pollutant accumulation
It is continuously increased.
The system discarded object output of table 1
| Classification | Specific yield |
| Carbon dioxide metabolic rate | 0.0441mg/g·h |
| Produce ammonia speed | 0.0079mg/g·h |
| Produce organic matter speed | 0.1998mg/g·h |
| Produce phosphorus speed | 0.0009mg/g·h |
Whole experiment is divided into two stages, and the first stage is only constituted with pretreatment unit+BAF, the technique that the stage uses
Combination is similar to cultivating wastewater purification technique, is only used for efficiently controlling suspension and ammonia nitrogen.But it is organic as the culture-cycle extends
Thing, nitrate and phosphate cumulative effect substantially, can reach nearly 100mg/L, although what fish polluted to this three class in itself
Tolerance is very strong, but three pollutants will cause circulating water body eutrophication, significantly consume oxygen in water, ultimately result in fish
It is dead.Therefore, when experiment carries out 60d, in circulating water body technique unit, increase vegetable growing unit and BAF/O3 units,
As can be seen from the test results, after 60d, not only organic matter, phosphate and nitrate are effectively controlled, dense in recirculated water
Degree is significantly reduced, and its concentration is respectively in the range of 10mg/L or so, 10-15mg/L and 50-60mg/L.Also further control simultaneously
Ammonia nitrogen concentration so that the ammonia nitrogen in recirculated water is stable in 0.5-1mg/L.From the results showed that sheet of 200d stable operations
Invent a kind of high density closed recirculating fish and vegetable symbiotic coupling technique system high efficiency based on light filter material BAF proposed feasible.
Cultivate for existing high density closed recirculating exist microbial degradation efficiency is low and nitrogen recycling is asked
Topic, the present invention proposes a kind of water treatment system and method for the sealing and circulating aquaculture based on light filter material BAF, core therein
Heart unit biological aerated filter process (Biological AeratedFilter, BAF) is the emerging sewage nineties in last century
Handling process, it has, and its biomass is big, the process characteristic such as floor space is small, treatment effeciency is high.With the development of filtrate material,
Lightweight BAF techniques have more preferable load of microorganisms ability, more efficient to the ammonia nitrogen removal of low concentration；Simultaneously because lightweight is filtered
Expect that BAF extrudes the water flow mode of filtrate, make technique that there is stronger tiny particles content interception capacity.Therefore, light filter material BAF works
Skill fabulous can solve the problem of floor space that mobile biological filtering tank process faces is big, pollutant process efficiency is low.In addition, this hair
It is bright to be also loaded onto vegetable aquaculture planter units, using the PO in aquatic animal excreta4 3-- P classes and NO4 +What-N was changed into
NO3 -- N class materials, not only realize NO3 -- N recycling, while making system add the added value of vegetable aquaculture.Make
Fish (Tilapia mossambica) cultivation density of closed circulating system is up to 60kg/m3, realize the depth carbon elimination of aquatic animal breeding wastewater
Decolourize and high efficiente callback nitrogen source, aquatic animal cultivation water is realized self-loopa, cycling rate is up to 90-95%, with other similar works
Skill is compared, with more preferable nitrification effect, decolorizing effect, and good resource reusing ratio.
The water treatment system and method for a kind of sealing and circulating aquaculture that the present invention is provided, are utilized with light filter material BAF
Circular regeneration profit to the highly effective and safe of breeding wastewater is realized for core, with reference to the new technology of vegetable culturing disk and ozone unit
With realizing cultivating system 2 years and not changing completely the operational mode of water, odd-numbered day cycle-index is controlled at 10-12 times, and reuse ratio reaches
More than 95%.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (10)
1. a kind of water treatment system of sealing and circulating aquaculture, it is characterised in that：Including culturing pool, light filter material BAF units,
Vegetable aquaculture cultivating stand, light filter material BAF couplings O3Unit and heat exchange unit, wherein, the delivery port of the culturing pool and institute
State the water inlet connection of light filter material BAF units, the delivery port of the light filter material BAF units and the vegetable aquaculture cultivating stand
Water inlet connection, the delivery port of the vegetable aquaculture cultivating stand couples O with the light filter material BAF3The water inlet of unit connects
Connect, the light filter material BAF couples O3The delivery port of unit is connected with the water inlet of the heat exchange unit, the heat exchange list
The delivery port of member is connected with the water inlet of the culturing pool.
2. the water treatment system of sealing and circulating aquaculture according to claim 1, it is characterised in that：The culturing pool is set
There are bottom delivery port, bottom evacuation port and supernatant delivery port, supernatant delivery port and the light filter material of the culturing pool
The water inlet connection of BAF units.
3. the water treatment system of sealing and circulating aquaculture according to claim 2, it is characterised in that：The bottom water outlet
Mouth is connected with pretreatment unit, and the pretreatment unit is grill unit, water outlet product and the lightweight of the pretreatment unit
The water inlet connection of filtrate BAF units.
4. the water treatment system of sealing and circulating aquaculture according to claim 3, it is characterised in that：The pretreatment is single
Member is rotary drum type fine grate, and the grid gap of the rotary drum type fine grate is 3-5mm.
5. the water treatment system of sealing and circulating aquaculture according to claim 1, it is characterised in that：The light filter material
BAF units are the first up flow type filter tank, and the top in the first up flow type filter tank is provided with the first filter tank baffle plate, and described first is upper
The inside in formula filter tank is filled with the first light filter material, and first light filter material is located under the baffle plate of first filter tank, described
The water inlet of light filter material BAF units is located at the bottom in the first up flow type filter tank, the water outlet of the light filter material BAF units
Mouth is located at the top in the first up flow type filter tank, and the delivery port of the light filter material BAF units is kept off positioned at first filter tank
On plate, the bottom in the first up flow type filter tank is provided with the first aeration head, and first aeration head is connected with air aeration dress
Put.
6. the water treatment system of sealing and circulating aquaculture according to claim 5, it is characterised in that：The light filter material
BAF couples O3Unit is the second up flow type filter tank, and the top in the second up flow type filter tank is provided with the second filter tank baffle plate, described the
The inside in two up flow type filter tanks be filled with the second light filter material, second light filter material be located at second filter tank baffle plate it
Under, the light filter material BAF couples O3The water inlet of unit is located at the bottom in the second up flow type filter tank, the light filter material
BAF couples O3The delivery port of unit is located at the top in the second up flow type filter tank, and the light filter material BAF couples O3Unit
Delivery port is located on the baffle plate of second filter tank, and the bottom in the second up flow type filter tank is provided with the second aeration head, and described the
Two aeration heads are connected with O3Aerator.
7. the water treatment system of sealing and circulating aquaculture according to claim 6, it is characterised in that：Described second is upper
The volume in formula filter tank is the half of the volume in the first up flow type filter tank.
8. the water treatment system of sealing and circulating aquaculture according to claim 1, it is characterised in that：The vegetable aquaculture
Cultivating stand is matrix module, and the water inlet of the vegetable aquaculture cultivating stand is arranged on the side of the matrix module, the water planting
The delivery port of vegetable cultivation frame is arranged on the opposite side of the matrix module, and the delivery port of the vegetable aquaculture cultivating stand was provided with
Filter screen.
9. the water treatment system of sealing and circulating aquaculture according to claim 1, it is characterised in that：The heat exchange list
Member is the electric circulating heater provided with control water temperature in heat-exchanger tank, the heat-exchanger tank.
10. a kind of method for treating water of sealing and circulating aquaculture, it is characterised in that：The breeding wastewater produced in culturing pool is through pre-
Handle grid to remove after big particle diameter suspension, into light filter material BAF units, by retention and biodegradation, in waste water
Organic matter be degraded to carbon dioxide and water, NH4 +- N is efficiently converted to the NO that plant available is utilized3 --N；Light filter material
Phosphoric acid salt and turn through light filter material BAF units that the water outlet of BAF units enters in vegetable aquaculture cultivating stand, aquatic animal excreta
The Nitrates pollutant of change, is absorbed as the nutriment needed for plant growth and is removed, realize resource high-efficiency reuse and water
Matter purifies double effects；Then, the water outlet of vegetable aquaculture cultivating stand enters rearmounted light filter material BAF couplings O3Unit, passes through depth
The hardly degraded organic substance brought in water removal by secretions from plant roots is removed in degree processing, and water outlet is decolourized and sterilized；Finally
By heat exchange unit, the water temperature of recirculated water, effluent recycling to culturing pool are controlled.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108077143A (en) * | 2018-01-23 | 2018-05-29 | 湖州南浔超联水产养殖有限公司 | A kind of environment-protective water product aquaculture net cage fish excrement collection and treatment device |
| CN108651361A (en) * | 2018-06-25 | 2018-10-16 | 中国海洋大学 | Advection racetrack circulating water culture system |
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| CN101300965A (en) * | 2008-07-10 | 2008-11-12 | 中国水产科学研究院渔业机械仪器研究所 | Industrial circulating water aquiculture system |
| CN102674625A (en) * | 2012-02-16 | 2012-09-19 | 浙江大学 | Treatment method for greenhouse turtle breeding wastewater |
| CN103613243A (en) * | 2013-11-27 | 2014-03-05 | 波鹰(厦门)科技有限公司 | Purification, disinfection and activation integrated device and purification, disinfection and activation method for aquaculture water |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300965A (en) * | 2008-07-10 | 2008-11-12 | 中国水产科学研究院渔业机械仪器研究所 | Industrial circulating water aquiculture system |
| CN102674625A (en) * | 2012-02-16 | 2012-09-19 | 浙江大学 | Treatment method for greenhouse turtle breeding wastewater |
| CN103613243A (en) * | 2013-11-27 | 2014-03-05 | 波鹰(厦门)科技有限公司 | Purification, disinfection and activation integrated device and purification, disinfection and activation method for aquaculture water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108077143A (en) * | 2018-01-23 | 2018-05-29 | 湖州南浔超联水产养殖有限公司 | A kind of environment-protective water product aquaculture net cage fish excrement collection and treatment device |
| CN108651361A (en) * | 2018-06-25 | 2018-10-16 | 中国海洋大学 | Advection racetrack circulating water culture system |
| CN108651361B (en) * | 2018-06-25 | 2023-11-03 | 中国海洋大学 | Advection runway type circulating water culture system |
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