CN107751085A - A kind of circulating seawer cultivating system based on microalgae membrane bioreactor - Google Patents
A kind of circulating seawer cultivating system based on microalgae membrane bioreactor Download PDFInfo
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- CN107751085A CN107751085A CN201710859033.5A CN201710859033A CN107751085A CN 107751085 A CN107751085 A CN 107751085A CN 201710859033 A CN201710859033 A CN 201710859033A CN 107751085 A CN107751085 A CN 107751085A
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- 238000012258 culturing Methods 0.000 claims abstract description 65
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- 238000003306 harvesting Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 27
- 241000195493 Cryptophyta Species 0.000 claims description 25
- 238000004140 cleaning Methods 0.000 claims description 14
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- 238000009395 breeding Methods 0.000 abstract description 23
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- 238000000034 method Methods 0.000 abstract description 15
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- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 238000012805 post-processing Methods 0.000 abstract description 2
- 238000009360 aquaculture Methods 0.000 description 14
- 244000144974 aquaculture Species 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OEPOKWHJYJXUGD-UHFFFAOYSA-N 2-(3-phenylmethoxyphenyl)-1,3-thiazole-4-carbaldehyde Chemical compound O=CC1=CSC(C=2C=C(OCC=3C=CC=CC=3)C=CC=2)=N1 OEPOKWHJYJXUGD-UHFFFAOYSA-N 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000035568 catharsis Effects 0.000 description 1
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- 239000012141 concentrate Substances 0.000 description 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 description 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 description 1
- 229940112669 cuprous oxide Drugs 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 235000015170 shellfish Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- 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
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Environmental Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Biotechnology (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Microbiology (AREA)
- Botany (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention provides a kind of circulating seawer cultivating system based on microalgae membrane bioreactor, including culturing pool, culturing pool is connected with bioreactor, bioreactor connects microalgae concentration basin by water pump, hyperfiltration membrane assembly is provided with inside microalgae concentration basin, hyperfiltration membrane assembly delivery port is connected by water pump with culturing pool, culturing pool center is provided with sewage mouth and drainpipe, the present invention passes through the absorption for the microalgae cultivated in bioreactor, the free ammonia in breeding wastewater can effectively be removed, the pollutants such as phosphate, free ammonia and reactive phosphate concentration can be less than test limit in the water outlet of hyperfiltration membrane assembly, it is recycled and is delivered in culturing pool, recycling for breeding water can effectively be realized, microalgae harvesting post-processing is into bait feeding to culturing pool, realize recycling for nutrient in breeding process.
Description
Technical field
The invention belongs to circulating seawer cultural technique field, and in particular to a kind of circulation based on microalgae membrane bioreactor
Sea farming system.
Background technology
In recent years, emerging ecological reestablishment was also introduced among sea farming system, related research and application
The catharsis of microorganism, macro and Filter feeding bivalves etc. is mostly based on, the advantage is that and adapt to supporting for low nutrient level
Grow seawater；And can, which obtains, while purifying water has shellfish algae of economic value etc. to cultivate byproduct；And technology implements and operation
Management is relatively simple, and cost is cheap.
Because fishery overfishing and environmental pollution aggravate, marine fishery resources increasingly fails, and marine product far can not expire
The sufficient market demand, development sea-farming can only be relied on to alleviate the pressure of marine product demand.The sea-farming industry development in China
Rapidly, breed variety is on the increase, and scale constantly expands, and intensive degree improves constantly, but it is excessive energy resource consumption to be present, cultivation
The problems such as self-pollution, the sustainable development of sea-farming industry is hindered, can be reduced using circulating seawer cultivation
Aquiculture waste water is discharged to the potential impact of environment, and can be by a relatively large margin save floor occupying area and water consumption, while also have
There is the advantages that culture-cycle is short, yield and high product price, but conventional process circulating seawer breeding wastewater constructs cost
Height, operation energy consumption is big, therefore the research of the wastewater processing technology in circulating seawer cultivation is particularly important.
The content of the invention
It is an object of the invention to provide a kind of circulating seawer cultivating system based on microalgae membrane bioreactor, this cultivation
System efficiently removes ammonia nitrogen, phosphate in breeding wastewater using microdisk electrode, can both realize recycling for breeding water, also
Nutrient in breeding process can be achieved to recycle, and residual bait, excrement remove facility in culturing pool, discharge of wastewater quantitatively may be used
Control, breeding process condition precise control.
The present invention is for the scheme taken of solution above-mentioned technical problem：A kind of circulation based on microalgae membrane bioreactor
Sea farming system, including culturing pool, culturing pool are connected with bioreactor, and bioreactor connects microalgae by water pump
Concentration basin, microalgae concentration basin inside are provided with hyperfiltration membrane assembly, and hyperfiltration membrane assembly delivery port is connected by water pump with culturing pool, cultivation
Pond center is provided with sewage mouth and drainpipe, and the present invention can have by the absorption for the microalgae cultivated in bioreactor
The pollutants such as free ammonia, phosphate in effect removal breeding wastewater, free ammonia and reactive phosphate in the water outlet of hyperfiltration membrane assembly
Concentration can be less than test limit, be recycled and be delivered in culturing pool, can effectively realize recycling for breeding water.
Preferably, bioreactor and microalgae concentration basin bottom are equipped with microporous diffuser, microporous diffuser connection
There is air compressor machine, be passed through in bioreactor containing 4%CO2Air, air inlet intensity is 1.2-1.5 m3/(m3D) aeration, it is micro-
Air is passed through in algae concentration basin, progress intensity is 0.5-0.7 m3/(m3D) aeration, microporous diffuser and air compressor machine are passed through
It is aerated, is passed through in bioreactor containing 4%CO2Air be aerated, can be provided for micro algae growth stir and provide micro-
Inorganic carbon source needed for algae growth, and be advantageous to prevent microalgae cell from settling, reduce attached wall or sink to the bottom, also can effectively reduce gas
Conduction resistance, inorganic carbon source is uniformly distributed, avoids local concentration too high, can also prevent water surface from producing mycoderm and influenceing microalgae
Grow, air is passed through in microalgae concentration basin, can be to provide stirring in microalgae concentration basin, and the ultrafiltration in microalgae concentration basin can be prevented
Membrane module surface deposits to form layer of contaminants, and being normally carried out for circulating seawer system is effectively ensured.
Preferably, microalgae concentration basin is transferred back to bioreactor by water pump by algae solution is concentrated, keep photo-biological anti-
It is 1.0-1.5 g/L to answer algae solution concentration in device, and bait feeding is made to cultivation after microalgae harvesting processing is concentrated in microalgae concentration basin
Pond, residence time of the microalgae in this cultivating system are 25d-40d, and the algae solution part conveying in microalgae concentration basin is back to photo-biological
In reactor, to maintain that there is higher microalgae concentration in bioreactor, so as to realize the efficient absorption to nitrogen phosphorus, microalgae
Another part algae solution in concentration basin is harvested, and is processed into the bait of aquaculture organism, is fed into culturing pool, it is achieved thereby that
Breeding process nutrient recycles, and it is excellent net that the control of microalgae residence time can not only ensure that microalgae has to waste water
Change acts on, and can also make micro algae growth good, have higher recovery value.
Preferably, sewage mouth bottom is connected with blow-off line, sewage mouth openend is provided with filtration members, and filtration members include filter
Plate, filter plate surface are evenly equipped with mudhole, and resistor is provided between mudhole, and resistor top half is semicircle, and the latter half is depression
Shape, sewage mouth collects residual bait or excrement enters in blow-off line, and blow-off line end is provided with switch valve, when residual bait and excrement are received
Collection is opened switch valve and discharged afterwards to a certain degree, wastes of crops can be used as after the residual bait and collecting dung that give off, not only
Environmental pollution is avoided, can also realize discarded object green utilization, sewage mouth openend is provided with filtration members, the mudhole on filtration members surface
Can be by the residual bait and excrement in cultivation water, when the resistor between mudhole can avoid blow-off line draining, the suction of mudhole
Aquaculture organism is set to be blocked in blowdown hole surface, resistor causes the increase of the distance between aquaculture organism and mudhole, inhaled so as to reduce
Power influences, and resistor surface is round and smooth, surface area is big, can substantially reduce the chance of injury of aquaculture organism, can also improve residual bait and excrement
Just discharge fluency, resistor are solid member, and its gravity can also improve the stability of filtration members placement, avoid drainage procedure from filtering
The situation that part floats and causes aquaculture organism following current to escape from.
Preferably, drainpipe passes through from sewage mouth, the ratio of draining pipe diameter and sewage mouth diameter is 1:1.8-2.4, row
Water pipe is connected with culturing pool outer row water pipe by culturing pool internal drainage pipe and formed, and drainpipe and sewage mouth are set together,
It is easy to the ratio of the discharge of sewage, waste water, draining pipe diameter and sewage mouth diameter, not only improves drainpipe mounting stability, may be used also
Ensure the fluency of sewage mouth sewer, drainpipe is divided into inside and outside two parts, lifts drainpipe performance.
Preferably, the inside of culturing pool internal drainage pipe is fix bar, fix bar surface is provided with graduation mark, outside fix bar
Surface is nested with electric up-down ring, and electric up-down ring lower end is connected with telescoping tube, and culturing pool outer row water pipe is drainage pipeline, Gu
Fixed pole arrangement form polygon, outer nested telescoping tube form rising water pipe, when electric up-down ring is at the top of fix bar, stretch
Pipe obstructs cultivation water, and so as to realize normal cultivation, when electric up-down ring declines, telescoping tube shortens, therefore higher than the water of telescoping tube
Body flows into drainpipe so as to discharge, and the flexible of telescoping tube causes drainpipe to have the function of blocking water body and draining, fix bar
Surface is provided with graduation mark, can calculate displacement according to electric up-down ring dropping distance, its displacement is： QUOTE , V is displacement（m3）, a is cultivation pond length（m）, b is culturing pool width（m）, h is
The exposed scale value of fix bar（m）, waste water displacement can be quantitative determined, so that cultivating system controls with more accurately condition,
Improve water treatment effect and culture efficiency.
Preferably, culturing pool internal side wall is provided with Cleaning pipes, Cleaning pipes water spraying direction is the clockwise or inverse time
Pin direction, the Cleaning pipes water spraying direction of culturing pool inwall are certain so that and the water sprayed forms certain rotary water current, so as to
The discharge of residual bait and excrement is improved, improves cleaning performance.
Preferably, carrying out microdisk electrode in bioreactor, waste water is sent into photo-biological by drainpipe in culturing pool
In reactor, waste water residence time in bioreactor is 1.0d-1.5d, the microdisk electrode effect of bioreactor
It is good, residence time of the control waste water in bioreactor, purification of waste water effect can be not only improved, microalgae can also had good
Good activity, while can also shorten the clarification time, shorten the water circulation cycle.
Compared with prior art, beneficial effects of the present invention are:1）The present invention is by cultivating in bioreactor
The absorption of microalgae, pollutant, the free ammonia of water outlet and the active phosphorus such as free ammonia in breeding wastewater, phosphate can be removed completely
Hydrochlorate concentration can be brought down below test limit, realize recycling for breeding water；2）The microalgae harvesting post-processing of culture into support
Biological feed is grown, realizes recycling for breeding process nutrient；3）Sewage mouth is provided with filtration members in culturing pool so that residual
Bait, excrement discharge are smooth, and can avoid the injury or influence on aquaculture organism；4）Drainpipe is realized using telescoping tube blocks water body
And drain function switching, and the graduation mark in fix bar realizes the quantitative determination of discharge of wastewater, improves cultivating system condition control
System.
A kind of circulating seawer based on microalgae membrane bioreactor, which is provided, present invention employs above-mentioned technical proposal cultivates system
System, compensate for the deficiencies in the prior art, reasonable in design, easy to operate.
Brief description of the drawings
Fig. 1 is the system schematic of the present invention；
Fig. 2 is sewage of the present invention, discharge of wastewater structural scheme of mechanism；
Fig. 3 is culturing pool top view of the present invention；
Fig. 4 is the drainpipe schematic diagram after electric up-down ring of the present invention declines；
Fig. 5 is the drainpipe schematic diagram that electric up-down ring of the present invention is located at highest order；
Fig. 6 is drainpipe top view of the present invention；
Fig. 7 is fix bar front view of the present invention；
Fig. 8 is the partial enlarged drawing of filtration members of the present invention；
Fig. 9 is the front view of filtration members of the present invention；
Figure 10 is the operational process block diagram of present system.
Description of reference numerals：1 culturing pool；2 bioreactors；3 microalgae concentration basins；4 hyperfiltration membrane assemblies；5 water pumps；6 is empty
Press；7 microporous diffusers；8 Cleaning pipes；9 sewage mouths；10 blow-off lines；11 drainpipes；12 filtration members；13 fix bars；14 electricity
Dynamic lifting ring；15 telescoping tubes；16 mudholes；17 resistors；18 filter plates.
Embodiment
It is described in further detail below in conjunction with drawings and examples：
Embodiment 1：
As shown in figure 1, the water outlet of culturing pool 1 enters in bioreactor 2, the nitrogen in breeding wastewater is absorbed by the growth of microalgae
The materials such as phosphorus, residence time of the breeding wastewater in bioreactor 2 are controlled at 1.0 d-1.5 d, the bottom of bioreactor 2
Portion is provided with and puts microporous diffuser 7 and be aerated, and the gas being passed through is containing 4%CO2Air, aeration intensity is 1.2-1.5 m3/
(m3D), provided for algae solution growth and stir and provide the inorganic carbon source needed for microalgae autophyting growth, what bioreactor 2 was cultivated
Algae solution enters in microalgae concentration basin 3, and the bottom of microalgae concentration basin 3 equally sets microporous diffuser 7, and connects air compressor machine 6 using sky
Gas enters promoting the circulation of qi, and aeration quantity is 0.5-0.7 m3/(m3D), main function, which is to provide, stirs and controls membrane module surface deposits dirty
The formation of thing is contaminated, realizes the concentration of algae solution by hyperfiltration membrane assembly 4 in microalgae concentration basin 3, an algae solution part for concentration returns
Into bioreactor 2, make in the range of the algae solution concentration in bioreactor 2 maintains 1.0-1.5 g/L, it is corresponding
The residence time of microalgae in systems is 25d-40d, and the effluent quality of hyperfiltration membrane assembly 4 is excellent, wherein for aquaculture organism poison
Larger free ammonia and the nitrite isoconcentration of property is below test limit, is recycled in culturing pool 1 and realizes circulating water cultivation,
Algae solution another part in microalgae concentration basin 3 is harvested, and is processed into the bait of aquaculture organism, is fed into culturing pool 1, so as to
Realize the maximization that breeding process nutrient utilizes.
The prior art of routine techniques dawn known to those skilled in the art in the present embodiment, is not chatted in detail herein
State.
Embodiment 2：
As Figure 1-10 shows, a kind of circulating seawer cultivating system based on microalgae membrane bioreactor, including culturing pool 1, cultivation
Pond 1 is connected with bioreactor 2, and bioreactor 2 connects microalgae concentration basin 3 by water pump 5, inside microalgae concentration basin 3
Provided with hyperfiltration membrane assembly 4, the delivery port of hyperfiltration membrane assembly 4 is connected by water pump 5 with culturing pool 1, and the center of culturing pool 1 is provided with sewage mouth
9 it is useless effectively to remove cultivation by the absorption for the microalgae cultivated in bioreactor 2 with drainpipe 11, the present invention
The pollutants such as free ammonia, phosphate in water, free ammonia and reactive phosphate concentration can be less than in the water outlet of hyperfiltration membrane assembly 4
Test limit, it is recycled and is delivered in culturing pool 1, can effectively realizes recycling for breeding water.
Bioreactor 2 and the bottom of microalgae concentration basin 3 are equipped with microporous diffuser 7, and microporous diffuser 7 is connected with pneumatics
Machine 6, it is passed through containing 4%CO in bioreactor 22Air, air inlet intensity is 1.3 m3/(m3D) aeration, microalgae concentration basin 3
In be passed through air, progress intensity is 0.65 m3/(m3D) aeration, it is aerated by microporous diffuser 7 and air compressor machine 6,
It is passed through in bioreactor 2 containing 4%CO2Air be aerated, can be provided for micro algae growth and stir and micro algae growth institute is provided
The inorganic carbon source needed, and be advantageous to prevent microalgae cell from settling, reduce attached wall or sink to the bottom, also can effectively reduce gas conduction resistance
Power, inorganic carbon source is uniformly distributed, avoids local concentration too high, can also prevent water surface from producing mycoderm and influenceing micro algae growth,
Air is passed through in microalgae concentration basin 3, can be to provide stirring in microalgae concentration basin 3, and the milipore filter in microalgae concentration basin 3 can be prevented
The surface of component 4 deposits to form layer of contaminants, and being normally carried out for circulating seawer system is effectively ensured.
Microalgae concentration basin 3 is transferred back to bioreactor 2 by water pump 5 by algae solution is concentrated, and keeps in bioreactor 2
Algae solution concentration is 1.1 g/L, bait feeding is made to culturing pool 1 after microalgae harvesting processing is concentrated in microalgae concentration basin 3, microalgae exists
Residence time in this cultivating system is 30d, and the algae solution part conveying in microalgae concentration basin 3 is back in bioreactor 2, with
Maintain that there is higher microalgae concentration in bioreactor 2, so as to realize the efficient absorption to nitrogen phosphorus, in microalgae concentration basin 3
Another part algae solution harvested, be processed into the bait of aquaculture organism, feed into culturing pool 1, it is achieved thereby that cultivating
Journey nutrient recycles, and the control of microalgae residence time can not only ensure that there is microalgae excellent purification to make to waste water
With can also make micro algae growth good, there is higher recovery value.
The bottom of sewage mouth 9 is connected with blow-off line 10, and the openend of sewage mouth 9 is provided with filtration members 12, and filtration members 12 include filter
Plate 18, the surface of filter plate 18 are evenly equipped with mudhole 16, resistor 17 are provided between mudhole 16, and the top half of resistor 17 is semicircle, under
Half portion is divided into concave shape, and sewage mouth 9 collects residual bait or excrement enters in blow-off line 10, and the end of blow-off line 10 is provided with switch
Valve, when residual bait and collecting dung to a certain degree after open switch valve and discharged, can make after the residual bait and collecting dung that give off
For wastes of crops, environmental pollution is not only avoided, can also realize discarded object green utilization, the openend of sewage mouth 9 is provided with filtration members
12, the mudhole 16 on the surface of filtration members 12 can be by the residual bait and excrement in cultivation water, and the resistor 17 between mudhole 16 can be kept away
When exempting from 10 draining of blow-off line, the suction of mudhole 16 makes aquaculture organism be blocked in the surface of mudhole 16, and resistor 17 causes cultivation
The increase of the distance between biology and mudhole 16, influenceed so as to reduce suction, and the surface of resistor 17 is round and smooth, surface area is big, can be big
The big chance of injury for reducing aquaculture organism, can also improve the discharge fluency of residual bait and excrement, and resistor 17 is solid member, its gravity
The stability of the placement of filtration members 12 can be also improved, avoids drainage procedure filtration members 12 from floating and cause what aquaculture organism following current was escaped from
Situation.
The surface spraying of filtration members 12 has nonpolluting coating, and the composition and its parts by weight of nonpolluting coating are：From polishing resin 23-32
Part, Vinylidene Chloride 4-8 parts, rosin 12-16 parts, cuprous oxide 28-41 parts, ZPT 2-4.5 parts, the preparation method of coating
For：By weight said components are mixed, 13-21min is disperseed on dispersion machine, it is rear to add 0.02-0.03 parts 2,6- dihydroxy
Benzoic acid and 0.01-0.013 part biurets stir, and stand 5-10min, antifouling paint is then ground to obtain on sand mill,
Coated on nonpolluting coating is formed after the surface drying processing of filtration members 12, nonpolluting coating is remarkably improved the anti-of the surface of filtration members 12
Dirty performance, the 2,6-DHBA and biuret of addition can improve the molecular structure of rosin, reduce intermolecular force, from
And the decentralization of each component is improved, keep dispersion stable, make nonpolluting coating that there is excellent soil resistance and crack resistance, from
And make the surface of filtration members 12 that not only there is excellent antifouling property, avoid filtration members 12 from being chronically at more residual bait and excrement
Water body and cooperating microorganisms or moss, improve the fluency that filtration members 12 collect residual bait and excrement, can also lift filtration members
12 automatical cleaning ability.
Drainpipe 11 passes through from sewage mouth 9, and the ratio of the diameter of drainpipe 11 and the diameter of sewage mouth 9 is 1:1.9, drainpipe 11 by
The internal drainage pipe 11 of culturing pool 1 is connected composition with the outer row water pipe 11 of culturing pool 1, and drainpipe 11 and sewage mouth 9 are arranged on one
Rise, be easy to the ratio of the discharge of sewage, waste water, the diameter of drainpipe 11 and the diameter of sewage mouth 9, it is stable not only to improve the installation of drainpipe 11
Property, it is also ensured that the fluency of the sewer of sewage mouth 9, drainpipe 11 divide for inside and outside two parts, the lifting performance of drainpipe 11.
The inside of the internal drainage pipe 11 of culturing pool 1 is fix bar 13, and the surface of fix bar 13 is provided with graduation mark, outside fix bar 13
Surface is nested with electric up-down ring 14, and the lower end of electric up-down ring 14 is connected with telescoping tube 15, and the outer row water pipe 11 of culturing pool 1 is row
Waterpipe, the arrangement form polygon of fix bar 13 form rising water pipe after overcoat telescoping tube 15, and the inwall of electric up-down ring 14 is raised
Pulley and the pulley nested encryptions on the surface of fix bar 13 so that electric up-down ring 14 can move up and down along fix bar 13, work as electricity
When dynamic lifting ring 14 is in 13 top of fix bar, telescoping tube 15 obstructs cultivation water, so as to realize normal cultivation, when electric up-down ring
During 14 decline, telescoping tube 15 shortens, therefore the water body higher than telescoping tube 15 flows into drainpipe 11 so as to discharge, and telescoping tube 15 stretches
So that drainpipe 11 has the function of blocking water body and draining, and after telescoping tube 15 shortens, exposed fix bar 13 may be used also
Big part pollutant is obstructed, avoids the larger pollutant of volume from being resulted in blockage into drainpipe 11, the surface of fix bar 13 is provided with scale
Line, displacement can be calculated according to the dropping distance of electric up-down ring 14, its displacement is： QUOTE , V is displacement（m3）, a is the length of culturing pool 1（m）, b is the width of culturing pool 1（m）, h is that fix bar 13 is exposed
Scale value（m）, waste water displacement can be quantitative determined, so that cultivating system controls with more accurately condition, is improved at waste water
Manage effect and culture efficiency.
The internal side wall of culturing pool 1 is provided with Cleaning pipes 8, the water spraying direction of Cleaning pipes 8 be clockwise or counterclockwise,
The water spraying direction of Cleaning pipes 8 of the inwall of culturing pool 1 is certain so that the water sprayed forms certain rotary water current, so as to improve
The discharge of residual bait and excrement, improve cleaning performance.
Microdisk electrode is carried out in bioreactor 2, waste water is sent into bioreactor by drainpipe 11 in culturing pool 1
In 2, waste water residence time in bioreactor 2 is 1.1d, and the microdisk electrode effect of bioreactor 2 is good, and control is useless
Residence time of the water in bioreactor 2, purification of waste water effect can be not only improved, can also make microalgae that there is good work
Property, while can also shorten the clarification time, shorten the water circulation cycle.
The prior art of routine techniques dawn known to those skilled in the art in the present embodiment, is not chatted in detail herein
State.
Embodiment 3：
As shown in Figure 10, it is the operational process block diagram of the circulating seawer cultivating system based on microalgae membrane bioreactor, as schemed institute
Show, culturing pool exports breeding wastewater into bioreactor, and microdisk electrode is carried out in bioreactor, treats that microalgae is rested
It is following to limit is monitored to grow the nitrogen ammonia in waste water, phosphate absorption, the algae solution in bioreactor is delivered to microalgae concentration basin
In, algae solution obtains the excellent clean water of water quality after hyperfiltration membrane assembly, and the output of this clean water is delivered in culturing pool and re-started
Biological culture, in microalgae concentration basin, the algae solution part outside hyperfiltration membrane assembly is transferred back in bioreactor again, another portion
Point algae solution harvest is processed into aquaculture organism feed, feeds into culturing pool, so as to realize breeding water and nutrition in cultivating system
Element recycles.
The prior art of routine techniques dawn known to those skilled in the art in the present embodiment, is not chatted in detail herein
State.
Embodiment 4：
As Figure 1-10 shows, a kind of circulating seawer cultivating system based on microalgae membrane bioreactor, including culturing pool 1, cultivation
Pond 1 is connected with bioreactor 2, and bioreactor 2 connects microalgae concentration basin 3 by water pump 5, inside microalgae concentration basin 3
Provided with hyperfiltration membrane assembly 4, the delivery port of hyperfiltration membrane assembly 4 is connected by water pump 5 with culturing pool 1, and the center of culturing pool 1 is provided with sewage mouth
9 are equipped with microporous diffuser 7 with drainpipe 11, bioreactor 2 and the bottom of microalgae concentration basin 3, and microporous diffuser 7 is connected with
Air compressor machine 6, it is passed through containing 4%CO in bioreactor 22Air, air inlet intensity is 1.4 m3/(m3D) aeration, microalgae are dense
Air is passed through in contracting pond 3, progress intensity is 0.55 m3/(m3D) aeration, microalgae concentration basin 3 will concentrate algae solution by water pump 5
Bioreactor 2 is transferred back to, it is 1.2 g/L to keep algae solution concentration in bioreactor 2, is concentrated in microalgae concentration basin 3 micro-
Bait feeding is made to culturing pool 1 after algae harvest processing.
The bottom of sewage mouth 9 is connected with blow-off line 10, and the openend of sewage mouth 9 is provided with filtration members 12, and filtration members 12 include filter
Plate 18, the surface of filter plate 18 are evenly equipped with mudhole 16, resistor 17 are provided between mudhole 16, and the top half of resistor 17 is semicircle, under
Half portion is divided into concave shape.
Drainpipe 11 passes through from sewage mouth 9, and the ratio of the diameter of drainpipe 11 and the diameter of sewage mouth 9 is 1:2.1, drainpipe 11 by
The internal drainage pipe 11 of culturing pool 1 is connected composition with the outer row water pipe 11 of culturing pool 1, and the inside of the internal drainage pipe 11 of culturing pool 1 is
Fix bar 13, the surface of fix bar 13 are provided with graduation mark, and the outer surface of fix bar 13 is nested with electric up-down ring 14, electric up-down ring 14
Lower end is connected with telescoping tube 15, and the outer row water pipe 11 of culturing pool 1 is drainage pipeline, and the internal side wall of culturing pool 1 is provided with Cleaning pipes
8, the water spraying direction of Cleaning pipes 8 is clockwise or counterclockwise.
Microdisk electrode is carried out in bioreactor 2, waste water is sent into bioreactor by drainpipe 11 in culturing pool 1
In 2, waste water residence time in bioreactor 2 is 1.3d.
TN, TP content clearance in breeding wastewater are carried out under the conditions of the setting of the present embodiment system to test, and are controlled every time real
The influent waste water amount tested is identical, tests in influent waste water TN, TP concentration in initial TN, TP concentration and water outlet, it, which absorbs, removes
Rate calculation formula is：
η（%）=QUOTE * 100%, wherein, η is clearance, W0For element initial concentration in water inlet（mg/
L）, WeFor concentration of element in water outlet（mg/L）
Experimental result such as following table：
Can be seen that by upper table experimental data, this cultivating system carries out the removal of TN, TP in breeding wastewater based on embrane method microdisk electrode,
Its removal effect is up to more than 90%, and removal effect is good and stability is higher, therefore this cultivating system can realize the circulation of breeding water
Utilize.
Routine techniques connection or the prior art of prior art dawn known to those skilled in the art in above-described embodiment,
Therefore it is not described in detail herein.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, the ordinary skill people of this area
Member, without departing from the spirit and scope of the present invention, it can also make a variety of changes and modification.Therefore, it is all equivalent
Technical scheme fall within scope of the invention, scope of patent protection of the invention should be defined by the claims.
Claims (8)
1. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor, including culturing pool（1）, it is characterised in that institute
State culturing pool（1）It is connected with bioreactor（2）, the bioreactor（2）Pass through water pump（5）Connect microalgae concentration basin
（3）, the microalgae concentration basin（3）Inside is provided with hyperfiltration membrane assembly（4）, the hyperfiltration membrane assembly（4）Delivery port passes through water pump（5）
With culturing pool（1）Connection, the culturing pool（1）Center is provided with sewage mouth（9）With drainpipe（11）.
2. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 1, its feature exist
In the bioreactor（2）With microalgae concentration basin（3）Bottom is equipped with microporous diffuser（7）, the microporous diffuser
（7）It is connected with air compressor machine（6）, the bioreactor（2）In be passed through containing 4%CO2Air, air inlet intensity is 1.2-1.5
m3/(m3D) aeration, the microalgae concentration basin（3）In be passed through air, progress intensity is 0.5-0.7 m3/(m3D) aeration.
3. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 1, its feature exist
In the microalgae concentration basin（3）Pass through water pump（5）Concentration algae solution is transferred back to bioreactor（2）, keep optical-biological reaction
Device（2）Middle algae solution concentration is 1.0-1.5 g/L, the microalgae concentration basin（3）Bait throwing is made after middle concentration microalgae harvesting processing
It is fed to culturing pool（1）.
4. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 1, its feature exist
In the sewage mouth（9）Bottom is connected with blow-off line（10）, the sewage mouth（9）Openend is provided with filtration members（12）, it is described
Filtration members（12）Including filter plate（18）, the filter plate（18）Surface is evenly equipped with mudhole（16）, the mudhole（16）Between set
There is resistor（17）, the resistor（17）Top half is semicircle, and the latter half is concave shape.
5. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 1, its feature exist
In the drainpipe（11）From sewage mouth（9）Pass through, the drainpipe（11）Diameter and sewage mouth（9）The ratio of diameter is 1:
1.8-2.4 the drainpipe（11）By culturing pool（1）Internal drainage pipe（11）With culturing pool（1）Outer row water pipe（11）Connection
Composition.
6. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 5, its feature exist
In the culturing pool（1）Internal drainage pipe（11）Inside be fix bar（13）, the fix bar（13）Surface is provided with scale
Line, the fix bar（13）Outer surface is nested with electric up-down ring（14）, the electric up-down ring（14）Lower end is connected with flexible
Pipe（15）, the culturing pool（1）Outer row water pipe（11）For drainage pipeline.
7. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 1, its feature exist
In the culturing pool（1）Internal side wall is provided with Cleaning pipes（8）, the Cleaning pipes（8）Water spraying direction is clockwise or inverse
Clockwise.
8. a kind of circulating seawer cultivating system based on microalgae membrane bioreactor according to claim 1, its feature exist
In the bioreactor（2）Middle carry out microdisk electrode, the culturing pool（1）Middle waste water passes through drainpipe（11）It is sent into light
Bioreactor（2）In, the waste water is in bioreactor（2）The middle residence time is 1.0d-1.5d.
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