CN105060648B - Industrial circulating water fish culture denitrogenation Zero discharging system - Google Patents
Industrial circulating water fish culture denitrogenation Zero discharging system Download PDFInfo
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- CN105060648B CN105060648B CN201510509381.0A CN201510509381A CN105060648B CN 105060648 B CN105060648 B CN 105060648B CN 201510509381 A CN201510509381 A CN 201510509381A CN 105060648 B CN105060648 B CN 105060648B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 33
- 238000007599 discharging Methods 0.000 title claims abstract description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000012258 culturing Methods 0.000 claims abstract description 30
- 235000015097 nutrients Nutrition 0.000 claims abstract description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 20
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Abstract
The present invention relates to a kind of industrial circulating water fish culture denitrogenation Zero discharging system, including culturing pool, planting structure is built in the culturing pool top, the culturing pool is connected to preliminary filter, the preliminary filter is connected to balancing tank all the way, another road is connected to sludge-tank, the treatment front end of the balancing tank is connected to Electrotransport devices, the alkaline end of the Electrotransport devices is connected to front end film condensing device, the high concentration end of the front end film condensing device is connected to plant nutrient solution reservoir, low concentration end is back to the acidic terminal of Electrotransport devices, the acidic terminal of the Electrotransport devices is connected to end film condensing device, the low concentration end of the end film condensing device is connected to the treatment rear end of balancing tank, high concentration end is connected to sludge-tank, the treatment rear end of the balancing tank is connected to culturing pool.The recirculated water of nitrogen water conservancy high in plant nutrient solution reservoir of the present invention in plant absorption, culturing pool is beneficial to fish culture, greatly improves both yield.
Description
Technical field
The present invention relates to a kind of industrial circulating water fish culture denitrogenation Zero discharging system.
Background technology
In industrial circulating water cultivating system, the 70%-80% of fish institute bait material by the diffusion of the cheek, ion exchange with
Metabolite or residual bait（Predominantly organic matter and ammonia nitrogen）Form enter in water.These materials in the presence of microorganism, meeting
Generation " three nitrogen ", i.e.,：Ammoniacal nitrogen, cultured water and nitric nitrogen." three nitrogen " causes many-sided harm to fish, can also cause fish
Body colour pool and meat decline.
When dissolved oxygen is not enough, denitrifying bacterium with Organic Compounds such as methyl alcohol, acetic acid etc. as electron donor, nitric acid state
Nitrogen or nitrite nitrogen are electron acceptor, by nitrate or nitrate reductase into nitrous oxide or the process of nitrogen, i.e., anti-nitre
Change is acted on.Conventional method is that attached biological film carries out denitrogenation on biofilter at present.Either dribble-feed biological filter, flood
The fixed bed biofilter such as formula biological filter, biological rotating disk and biological drum, or make in high-velocity flow and air-flow or mechanical agitation
With lower biofilm carrier in the biological fluidized bed of constantly motion, the culture and domestication of biofilter should be all carried out, can just put life in a suitable place to breed
Thing.Because the growth rate of bacterium is than relatively low, one layer the time needed for the fully wrapped around biofilm of carrier is very long is formed.
Importantly, the most of denitrifying bacterias needed for denitrification denitrogenation all could normally be carried out when dissolved oxygen is 0.5mg/L
Denitrification, and breeding water body is oxygen-enriched water body, dissolved oxygen is about 4-6mg/L.There is scientist to attempt to enter in breeding wastewater
Dissolved oxygen is dropped into relatively low level before denilrification system.For example, in being removed water by constantly being made a return journey to the method for water body stripping nitrogen
Dissolved oxygen；Local anaerobic environment is caused by suitably extending hydraulic detention time.But, both approaches are all caused into
This rising.
Fish dish coupling technique is connected in fish culture water circulation system cultivation pipe, disk, groove, alms bowl and matrix etc., is entered
Row vegetable soilless culture or other plants（Such as ornamental plant and medicinal plant）." three nitrogen " can not only be directly absorbed, water purification is reached
Purpose；The second output can also be obtained, is the most effective and crucial technology of nitrogen cycle in cultivating system in solving to circulate at present,
With good ecological effect.However, in high density cycle water fish-cultivating, in recirculated water " three nitrogen "（The total content of N）Rise very
Hurry up, only by plant absorption, it is necessary to very big vegetable growing area.Vegetables enter vegetative growth phase after, its nutrient absorption it is effective
Scope by well beyond fish to the TL of ammonia nitrogen, nitrite and other nutriments；In other words, supported using recirculated water
, directly as vegetables nutrient solution, vegetable growth is slow, nutrition wretched insufficiency for the water body of fish water standard, and yield is very low, absorbs " three
Nitrogen " efficiency is also very low.Therefore, the concentration for how solving hydroponic system vegetation growth of plant needs is uneven with cycle water fish-cultivating water body
The contradiction of weighing apparatus, is to need technical bottleneck urgently to be resolved hurrily at present.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of industrial circulating water fish reasonable in design, high-efficiency environment friendly
Cultivation denitrogenation Zero discharging system.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of industrial circulating water fish culture denitrogenation
Zero discharging system, including to the culturing pool of high-density breeding fish, planting structure, institute have been built in the culturing pool top
State culturing pool and be connected to preliminary filter, the preliminary filter is connected to balancing tank, the preliminary filtering dress all the way
Another road put is connected to sludge-tank, and the treatment front end of the balancing tank is connected to Electrotransport devices, the Electrotransport devices
Alkaline end be connected to front end film condensing device, the high concentration end of the front end film condensing device is connected to the storage of plant nutrient solution
Pond, the low concentration end of the front end film condensing device is back to the acidic terminal of Electrotransport devices, the acidity of the Electrotransport devices
End is connected to end film condensing device, and the low concentration end of the end film condensing device is connected to the treatment rear end of balancing tank,
The high concentration end of the end film condensing device is connected to sludge-tank, and the treatment rear end of the balancing tank is connected to culturing pool.
Preferably, the Electrotransport devices include compression pump, the MBR being sequentially connected with the treatment front end of the balancing tank
Ultrafiltration apparatus and bipolar membrane electrodialysis device, the clear water end of the MBR ultrafiltration apparatus are connected to bipolar membrane electrodialysis device, institute
The sewage end for stating MBR ultrafiltration apparatus is connected to sludge-tank.
Preferably, the treatment front end of the balancing tank higher than treatment rear end, and the treatment front end of the balancing tank and
Midfeather between treatment rear end is provided with some overfalls with magnetic valve, and the treatment front end of the balancing tank is set
There is ammonia nitrogen tester, some magnetic valves are connected with the ammonia nitrogen tester.
Preferably, the sludge-tank is arranged on the plant nutrient solution reservoir side, and the sludge-tank is trained higher than plant
Nutrient solution reservoir, the configured overfall at the top of it of the sludge-tank is connected with plant nutrient solution reservoir, the sludge-tank
Bottom is connected with sludge dewatering equipment, and the water side of the sludge dewatering equipment is connected to plant nutrient solution reservoir, the sludge dewatering
The material residue end of machine is external to organic fertilizer factory.
Preferably, the bottom of the culturing pool is provided with to discharge the self-cleaning waterproof of the sewage with fish excrement and residual bait
Hammer Pneumatic drainage valve and water auto-regulation valve.
Preferably, the preliminary filter includes the stone of the collecting-tank and collecting-tank connection being connected with culturing pool bottom
Sand filter.
Preferably, supply-water pump, pure oxygen machine and pipeline are provided between the treatment rear end of the balancing tank and culturing pool
Blender.
Preferably, the front end film condensing device uses RO UF membrane nitrogen rejection facilitys, the end film condensing device to use
RO membrane separation devices.
Compared with prior art, the invention has the advantages that：
（1）The constraint of broken biological film Nitrogen Removal Mechanism of the present invention, using electromigration+film concentration technique, is filled by electromigration
The premenstrual terminal membrane enrichment facility of alkali ion water for putting generation isolates the high concentration water rich in nitrogen and is connected to plant nutrient solution
Reservoir, creates the enough plant absorptions of nutrition content；Meanwhile, the low concentration end of front end film condensing device is back to electromigration
The acidic terminal of device, the acidic terminal of the Electrotransport devices is connected to end film condensing device, the end film condensing device
Low concentration end is connected to the treatment rear end of balancing tank, and the treatment rear end of the balancing tank is connected to culturing pool, by continuous
Water-reducible method is converted, fish-farming circulating water " three nitrogen " and other pollutant loads in pond is controlled to adjust, it is ensured that cycle water fish-cultivating
The realization of technique.
（2）Efficient and process is simple of the invention, saves ozonization operation, and the activity for burying in oblivion residual ozone below
The technical process such as charcoal filtering, the sewage that the preliminary filter, MBR ultrafiltration apparatus and end film condensing device are produced is arranged
Enter to sludge-tank, the supernatant overflow of sludge-tank enters plant nutrient solution reservoir, collectively as the nutrient solution of plant, realizes factory
Change high density fish culture sewage recycling to utilize, the material residue of sludge-tank enters organic fertilizer factory, and total system is not to periphery basin
Any aquaculture wastewater is discharged, widespread pollution from the overuse of fertilizers and pesticides in rural area is administered from source.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the organigram of the embodiment of the present invention.
In figure：1- culturing pools, 2- planting structures, the preliminary filters of 3-, 31- collecting-tanks, 32- quartz sand filtrations
Device, 4- balancing tanks, 41- treatment front end, 411- overfalls, 42- treatment rear end, 5- sludge-tanks, 51- overfalls, 6- electromigration
Device, 61- alkalescence end, 62- acidic terminals, 63-MBR ultrafiltration apparatus, 631- clear water end, 632- sewage end, 64- bipolar membrane electrodialysis
Device, 7- front ends film condensing device, 71- high concentrations end, 72- low concentrations end, 8- plant nutrient solution reservoirs, 9- ends film concentration dress
Put, 91- high concentrations end, 92- low concentrations end, 10- sludge dewatering equipments, 11- pure oxygen machines, 12- pipe-line mixers.
Specific embodiment
As shown in figure 1, a kind of industrial circulating water fish culture denitrogenation Zero discharging system, including to high-density breeding fish
Pvc pipe formula soilless cultivation plant pattern of farming 2 has been built in the culturing pool 1 of class, the top of the culturing pool 1, and the culturing pool 1 is connected
To preliminary filter 3, the tunnel of preliminary filter 3 one is connected to balancing tank 4, the preliminary filter 3 it is another
Road is connected to sludge-tank 5, and the treatment front end 41 of the balancing tank 4 is connected to Electrotransport devices 6, the Electrotransport devices 6
Alkaline end 61 is connected to front end film condensing device 7, and the high concentration end 71 of the front end film condensing device 7 is connected to plant nutrient solution
Reservoir 8, the low concentration end 72 of the front end film condensing device 7 is back to the acidic terminal 62 of Electrotransport devices 6, the electromigration dress
The acidic terminal 62 for putting 6 is connected to end film condensing device 9, and the low concentration end 92 of the end film condensing device 9 is connected to regulation
The treatment rear end 42 in pond 4, the high concentration end 92 of the end film condensing device 9 is connected to sludge-tank 5, the balancing tank 4
Treatment rear end 42 be connected to culturing pool 1.
In embodiments of the present invention, the Electrotransport devices 6 are included and connected successively with the treatment front end 41 of the balancing tank 4
Compression pump, MBR ultrafiltration apparatus 63 and the bipolar membrane electrodialysis device 64 for connecing, the clear water end 631 of the MBR ultrafiltration apparatus 63 connects
It is connected to bipolar membrane electrodialysis device 64, the sewage end 632 of the MBR ultrafiltration apparatus 63 and is connected to sludge-tank 5；That is, institute
State in the pollutant and water of the removal macromolecular of MBR ultrafiltration apparatus 63 after SS, the ultrafiltration supernatant liquid for obtaining enters institute from clear water end 631
Bipolar membrane electrodialysis device 64 is stated, the sewage of recoil enters sludge-tank 5 from sewage end 632；The MBR ultrafiltration apparatus 63 are using pipe
Formula MBR ultrafiltration apparatus.
In embodiments of the present invention, the treatment front end 41 of the balancing tank 4 is higher than treatment rear end 42, and the regulation water
Midfeather between the treatment front end 41 and treatment rear end 42 in pond 4 is provided with some overfalls 411 with magnetic valve, described
The treatment front end 41 of balancing tank 4 is provided with ammonia nitrogen tester, and some magnetic valves are connected with the ammonia nitrogen tester；When
When water body ammonia-nitrogen content in the treatment front end 41 of the balancing tank 4 exceedes setting value, different cultivation fingerlings have difference
Setting value, close magnetic valve, refuse the overflow for the treatment of rear end 42 of exceeded water body to the balancing tank 4, and open electromigration
Device 6, front end film condensing device 7 and end film condensing device 9；Water body in the treatment front end 41 of the balancing tank 4
When ammonia-nitrogen content is less than setting value, magnetic valve is opened, qualified water body is directly to the overflow for the treatment of rear end 42 of balancing tank 4, and warp
Piping blender 12, pure oxygen machine 11 are back to culturing pool 1, and close Electrotransport devices 6, front end film condensing device 7 and end
Terminal membrane enrichment facility 9, has saved the energy consumption of Electrotransport devices 6, front end film condensing device 7 and end film condensing device 9.Not
With the fish culture cycle, according to fish culture density and water quality condition, the magnetic valve and Electrotransport devices 6, the concentration of preceding terminal membrane are filled
Put 7 and end film condensing device 9 can interval startup optimization, by being watered method, control to adjust fish-farming circulating water in pond 4
" three nitrogen " and other pollutant loads.As live fish culture density ＜ 20kg/m2, Electrotransport devices 6, preceding terminal membrane concentration dress
Put 7 and end film condensing device 9 can daily run 3-6 h, or operation 5-10 h every other day.
In embodiments of the present invention, the sludge-tank 5 is arranged on the side of plant nutrient solution reservoir 8, and the sludge
Pond 5 is higher than plant nutrient solution reservoir 8, the configured overfall 51 at the top of it of the sludge-tank 5 and the phase of plant nutrient solution reservoir 8
Connection, the bottom of the sludge-tank 5 is connected with sludge dewatering equipment 10, and the water side of the sludge dewatering equipment 10 is connected to plant training
Nutrient solution reservoir 8, the material residue end of the sludge dewatering equipment 10 are external to organic fertilizer factory；When the bottom sediment of sludge-tank 5 deposited
When many, start sludge dewatering equipment 10, produced clear water enters plant nutrient solution reservoir 8, and byproduct can be made for high concentration sludge
It is the raw material of organic fertilizer factory, realizes aquaculture wastewater recycling；The sludge dewatering equipment 10 is taken off using folded spiral shell formula sludge
Water dispenser.
In embodiments of the present invention, the bottom of the culturing pool 1 is provided with to discharge the sewage with fish excrement and residual bait
Self-cleaning water hammer-resistant Pneumatic drainage valve and water auto-regulation valve.
In embodiments of the present invention, the preliminary filter 3 include the collecting-tank 31 that is connected with the bottom of culturing pool 1 and
The quartz filter 32 of the connection of collecting-tank 31；Regulation is returned after the suspended particulate substance that the quartz filter 32 is gone in water removal
Pond 4, forms the recirculated water major loop cycle；The quartz filter 32 uses full-automatic shallow-layer quartz filter.
In embodiments of the present invention, be provided between the treatment rear end 42 of the balancing tank 4 and culturing pool 1 supply-water pump,
Pure oxygen machine 11 and pipe-line mixer 12.
In embodiments of the present invention, the front end film condensing device 7 uses RO UF membrane nitrogen rejection facilitys, and the end film is dense
Compression apparatus 9 use RO membrane separation devices.
In embodiments of the present invention, between the culturing pool 1 and collecting-tank 31, collecting-tank 31 and quartz filter 32 it
Between, between the treatment front end 41 of balancing tank 4 and MBR ultrafiltration apparatus 63, bipolar membrane electrodialysis device 64 and preceding terminal membrane concentration dress
Put between 7, between bipolar membrane electrodialysis device 64 and end film condensing device 9 and regulating reservoir treatment rear end 42 and pipeline
It is provided with to increase the water pump of hydraulic pressure between blender 12.
In embodiments of the present invention, in the culturing pool 1 with the sewage of fish excrement and residual bait from the self-cleaning waterproof of bottom of pond
Hammer Pneumatic drainage valve and the discharge of water auto-regulation valve, into collecting-tank 31, collect, store and the water quality and quantity of balanced sewage after
After filtering out suspended particulate substance through the filter of quartz filter 32, the clear water for obtaining enters the before processing of the balancing tank 4
End 41, the sewage of recoil enters sludge-tank 5；The clear water for obtaining is evacuated to MBR ultrafiltration apparatus from the treatment front end 41 of balancing tank 4
63, through after SS, the ultrafiltration supernatant liquid for obtaining enters through clear water end 631 in the pollutant and water of the removal macromolecular of MBR ultrafiltration apparatus 63
Enter the bipolar membrane electrodialysis device 64, the sewage of recoil enters sludge-tank 5 through sewage end 632；The ultrafiltration supernatant liquid for obtaining enters
After entering the bipolar membrane electrodialysis device 64, the moon of bipolar membrane electrodialysis device 64 described in the anion-permeable in ultrafiltration supernatant liquid
Film generates acid electrolyzed functional water, and the acid electrolyzed functional water converges in acidic terminal 62, double described in the cation permeable in ultrafiltration supernatant liquid
The anode membrane generation alkali ion water of pole EDBM device 64, the alkali ion water converges in alkaline end 61, ultrafiltration supernatant liquid
In more than 90% ammonia nitrogen and heavy metal transformation to alkali ion water in；Before the alkali ion water for obtaining is passed through through alkaline end 61
Terminal membrane enrichment facility 7, that is, RO UF membrane nitrogen rejection facilitys, the nitrogen water high of formation are delivered to plant nutrient solution through high concentration end 71
Reservoir 8, the clear water of formation returns to the acidic terminal 62 of bipolar membrane electrodialysis device 64 through low concentration end 72, mixed with acid electrolyzed functional water
Close, after oxidizing away the organic pollution for being not easy to be migrated, be passed through end film condensing device 9, that is, RO UF membranes dress
Put, the clear water that further dilution is formed forms cultivation recirculated water, enters through the treatment rear end 42 that low concentration end 92 is back to regulating reservoir
One step concentrates the sludge-tank 5 that the concentrated water to be formed is discharged to plant nutrient solution storage tank front end through high concentration end 91.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to covering scope of the invention.
Claims (8)
1. a kind of industrial circulating water fish culture denitrogenation Zero discharging system, it is characterised in that：Including to high-density breeding fish
Planting structure has been built in the culturing pool of class, the culturing pool top, and the culturing pool is connected to preliminary filter, described
Preliminary filter is connected to balancing tank all the way, and another road of the preliminary filter is connected to sludge-tank, the regulation
The treatment front end in pond is connected to Electrotransport devices, and the alkaline end of the Electrotransport devices is connected to front end film condensing device, institute
The high concentration end for stating front end film condensing device is connected to plant nutrient solution reservoir, and the low concentration end of the front end film condensing device is returned
The acidic terminal of Electrotransport devices is back to, the acidic terminal of the Electrotransport devices is connected to end film condensing device, the end film
The low concentration end of enrichment facility is connected to the treatment rear end of balancing tank, and the high concentration end of the end film condensing device is connected to
Sludge-tank, the treatment rear end of the balancing tank is connected to culturing pool.
2. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：The electricity
Moving apparatus include compression pump, MBR ultrafiltration apparatus and the Bipolar Membrane electricity being sequentially connected with the treatment front end of the balancing tank
Electrodialysis apparatus, the clear water end of the MBR ultrafiltration apparatus is connected to bipolar membrane electrodialysis device, the sewage of the MBR ultrafiltration apparatus
End is connected to sludge-tank.
3. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：The tune
The treatment front end of economizing basin is higher than the midfeather between treatment rear end, and the treatment front end and treatment rear end of the balancing tank
Some overfalls with magnetic valve are provided with, the treatment front end of the balancing tank is provided with ammonia nitrogen tester, described some
Magnetic valve is connected with the ammonia nitrogen tester.
4. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：The dirt
Mud sump is arranged on the plant nutrient solution reservoir side, and the sludge-tank is higher than plant nutrient solution reservoir, the sludge-tank warp
It is arranged on the overfall at the top of it to be connected with plant nutrient solution reservoir, the bottom of the sludge-tank is connected with sludge dewatering equipment,
The water side of the sludge dewatering equipment is connected to plant nutrient solution reservoir, the material residue end of the sludge dewatering equipment is external to organic fertilizer
Factory.
5. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：It is described to support
Grow pond bottom be provided with to discharge the self-cleaning water hammer-resistant Pneumatic drainage valve and water level of sewage with fish excrement and residual bait from
Dynamic regulating valve.
6. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：It is described first
Step filter includes the quartz filter of the collecting-tank and collecting-tank connection being connected with culturing pool bottom.
7. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：The tune
Supply-water pump, pure oxygen machine and pipe-line mixer are provided between the treatment rear end of economizing basin and culturing pool.
8. industrial circulating water fish culture denitrogenation Zero discharging system according to claim 1, it is characterised in that：Before described
Terminal membrane enrichment facility uses RO UF membrane nitrogen rejection facilitys, the end film condensing device to use RO membrane separation devices.
Priority Applications (1)
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| CN110036838B (en) * | 2019-05-22 | 2021-11-30 | 新疆旭日昕昤环保科技有限公司 | Fruit and vegetable and aquatic product ecological water composite self-circulation breeding method |
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| CN1519208A (en) * | 2003-01-29 | 2004-08-11 | 松村正利 | Method of electrolytic treatment of industrial or aquaculture waste water |
| CN101549896A (en) * | 2009-05-07 | 2009-10-07 | 上海交通大学 | Integrated electrolysis nitrogen and phosphorus removal wastewater treatment method |
| KR20140114586A (en) * | 2013-03-19 | 2014-09-29 | 황선호 | Sludge and Waste Water Treatment Apparatus of High Density and nitrogen treatment process using the same |
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| CN1519208A (en) * | 2003-01-29 | 2004-08-11 | 松村正利 | Method of electrolytic treatment of industrial or aquaculture waste water |
| CN101549896A (en) * | 2009-05-07 | 2009-10-07 | 上海交通大学 | Integrated electrolysis nitrogen and phosphorus removal wastewater treatment method |
| KR20140114586A (en) * | 2013-03-19 | 2014-09-29 | 황선호 | Sludge and Waste Water Treatment Apparatus of High Density and nitrogen treatment process using the same |
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| 工厂化水产养殖中的水处理技术;韩世成等;《水产学杂志》;20090930;第22卷(第3期);第54-59页 * |
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