CN105060648A - Industrial circulating water fish-culture denitrification zero-emission system - Google Patents
Industrial circulating water fish-culture denitrification zero-emission system Download PDFInfo
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- CN105060648A CN105060648A CN201510509381.0A CN201510509381A CN105060648A CN 105060648 A CN105060648 A CN 105060648A CN 201510509381 A CN201510509381 A CN 201510509381A CN 105060648 A CN105060648 A CN 105060648A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 239000010802 sludge Substances 0.000 claims abstract description 46
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000012528 membrane Substances 0.000 claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 18
- 241000251468 Actinopterygii Species 0.000 claims abstract description 13
- 230000002378 acidificating effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 51
- 238000012258 culturing Methods 0.000 claims description 47
- 230000008569 process Effects 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 27
- 238000000108 ultra-filtration Methods 0.000 claims description 23
- 238000009372 pisciculture Methods 0.000 claims description 20
- 239000010865 sewage Substances 0.000 claims description 16
- 238000000909 electrodialysis Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 13
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 11
- 239000010453 quartz Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003337 fertilizer Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 230000010455 autoregulation Effects 0.000 claims description 4
- 238000009395 breeding Methods 0.000 claims description 4
- 230000001488 breeding effect Effects 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
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- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 230000005012 migration Effects 0.000 abstract 4
- 238000013508 migration Methods 0.000 abstract 4
- 239000006228 supernatant Substances 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 235000013311 vegetables Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 3
- 244000144974 aquaculture Species 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
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- 239000003344 environmental pollutant Substances 0.000 description 2
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- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 230000000050 nutritive effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 108090000913 Nitrate Reductases Proteins 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
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- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
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- 244000005700 microbiome Species 0.000 description 1
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- 238000004172 nitrogen cycle Methods 0.000 description 1
- 239000001272 nitrous oxide Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- 239000007858 starting material Substances 0.000 description 1
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Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
- Farming Of Fish And Shellfish (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to an industrial circulating water fish-culture denitrification zero-emission system which comprises a culture pond, wherein a plant cultivation structure is put up above the culture pond; the culture pond is connected to a primary filtration device; one path of the primary filtration device is connected to a regulating pond and the other path of the primary filtration device is connected to a sludge pond; the treatment front end of the regulating pond is connected to an electro migration device; the alkaline end of the electro migration device is connected to a front end membrane concentration device; the high concentration end of the front end membrane concentration device is connected to a plant culture solution storage pond and the low concentration end of the front end membrane concentration device is connected to the acidic end of the electro migration device; the acidic end of the electro migration device is connected to a tail end membrane concentration device; the low concentration end of the tail end membrane concentration device is connected to the treatment tail end of the regulating pond and the high concentration end of the tail end membrane concentration device is connected to the sludge pond; the treatment tail end of the regulating pond is connected to the culture pond. According to the invention, high-nitrogen water in the plant culture solution storage pond is better absorbed by plants, and circulating water in the culture pond facilitates fish culture, so that yields of both plants and fish are increased.
Description
Technical field
The present invention relates to a kind of industrial circulating water fish farming denitrogenation Zero discharging system.
Background technology
In industrial circulating water cultivating system, the 70%-80% of fish institute bait material is entered in water with the form of meta-bolites or residual bait (being mainly organism and ammonia nitrogen) by the diffusion of the cheek, ion-exchange.These materials, under the effect of microorganism, can generate " three nitrogen ", that is: ammonia-state nitrogen, cultured water and nitric nitrogen." three nitrogen " causes many-sided harm to fish, and fish body colour pool and meat also can be caused to decline.
When dissolved oxygen deficiency, denitrifying bacteria is with Organic Compounds if methyl alcohol, acetic acid etc. are for electron donor, and nitric nitrogen or nitrite nitrogen are electron acceptor(EA), nitrate or nitrate reductase are become the process of nitrous oxide or nitrogen, i.e. denitrification.Method conventional is at present that attached biological film carries out denitrogenation on biological filter.No matter be the fixed bed biological filters such as dribble-feed biological filter, submerged biological filter, blodisc and biological drum, or biofilm carrier is in the biological fluidized bed of constantly motion under high velocity flow and air-flow or mechanical agitation, all should carry out cultivation and the domestication of biological filter, just can put biology in a suitable place to breed.Because the growth rate of bacterium is lower, what be formed needed for biofilm that carrier wraps up by one deck completely is chronic.The more important thing is, the most of denitrifying bacteriums needed for denitrification denitrogenation all normally could carry out denitrification when dissolved oxygen is 0.5mg/L, and aquaculture water is oxygen enrichment water body, and dissolved oxygen is approximately 4-6mg/L.Scientist is had to attempt, before breeding wastewater enters denilrification system, dissolved oxygen is dropped to lower level.Such as, to be made a return journey the dissolved oxygen in dewatering by the continuous method to water body stripping nitrogen; Local anaerobic environment is caused by suitably extending hydraulic detention time.But these two kinds of methods all cause the rising of cost.
Fish dish coupling technique is series connection cultivation pipe, dish, groove, alms bowl and matrix etc. in fish farming water circulation system, carries out vegetable soilless culture or other plant (as ornamental plant and medicinal plant).Directly can not only absorb " three nitrogen ", reach the object of water purification; The second output can also be obtained, be the effective and the most crucial technology solving nitrogen cycle in cultivating system in circulation at present, there is good ecologic effect.But in high-density cycle water fish-cultivating, in recirculated water, " three nitrogen " (total content of N) rises very fast, only by plant absorption, needs very large vegetable growing area.Vegetables enter after date of nourishing and growing, and the useful range of its dietetic alimentation is by well beyond the TL of fish to ammonia nitrogen, nitrite and other nutritive substance; In other words, the water body of employing cycle water fish-cultivating water quality standard is directly as vegetables nutrient solution, and vegetable growth is slow, nutrition wretched insufficiency, and output is very low, absorbs " three nitrogen " efficiency also very low.Therefore, how solving concentration and the unbalanced contradiction of cycle water fish-cultivating water body of hydroponic system vegetation growth of plant needs, is need technical bottleneck urgently to be resolved hurrily at present.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of industrial circulating water fish farming denitrogenation Zero discharging system of reasonable in design, high-efficiency environment friendly.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: a kind of industrial circulating water fish farming denitrogenation Zero discharging system, comprise the culturing pool in order to high-density breeding fish, plant growing structure has been built above described culturing pool, described culturing pool is connected to preliminary filtration unit, described preliminary filtration unit one road is connected to balancing tank, another road of described preliminary filtration unit is connected to sludge sump, the process front end of described balancing tank is connected to Electrotransport devices, the alkalescence end of described Electrotransport devices is connected to front end film condensing device, the high density end of described front end film condensing device is connected to plant culturing liquid storage pond, the lower concentration end of described front end film condensing device is back to the acidic terminal of Electrotransport devices, the acidic terminal of described Electrotransport devices is connected to end film condensing device, the lower concentration end of described end film condensing device is connected to the process rear end of balancing tank, the high density end of described end film condensing device is connected to sludge sump, the process rear end of described balancing tank is connected to culturing pool.
Preferably, described Electrotransport devices comprises the pressure pump, MBR ultra-filtration equipment and the bipolar membrane electrodialysis device that are connected successively with the process front end of described balancing tank, and the clear water end of described MBR ultra-filtration equipment is connected to bipolar membrane electrodialysis device, the sewage end of described MBR ultra-filtration equipment is connected to sludge sump.
Preferably, the process front end of described balancing tank is higher than process rear end, and the midfeather between the process front end of described balancing tank and process rear end is provided with some overflow ports with magnetic valve, the process front end of described balancing tank is provided with ammonia nitrogen tester, and described some magnetic valves are connected with described ammonia nitrogen tester.
Preferably, described sludge sump is arranged on described plant culturing liquid storage pond side, and described sludge sump is higher than plant culturing liquid storage pond, the overflow port of described sludge sump through being arranged on its top is store pond with plant culturing liquid and is connected, the bottom of described sludge sump is connected with sludge dewatering equipment, and the water side of described sludge dewatering equipment is connected to plant culturing liquid storage pond, the material slag end of described sludge dewatering equipment is external to fertilizer factory.
Preferably, the bottom of described culturing pool is provided with in order to discharge self-stip water hammer-resistant Pneumatic drainage valve with the sewage of fish excrement and residual bait and water auto-regulation valve.
Preferably, described preliminary filtration unit comprises and the water collecting basin be connected bottom culturing pool, the quartz filter that is connected with water collecting basin.
Preferably, working shaft, pure oxygen machine and line mixer is provided with between the process rear end of described balancing tank and culturing pool.
Preferably, described front end film condensing device adopts RO membrane sepn nitrogen rejection facility, and described end film condensing device adopts RO membrane separation unit.
Compared with prior art, the present invention has following beneficial effect:
(1) constraint of broken biological film Nitrogen Removal Mechanism of the present invention, adopt electromigration+membrane concentration technology, the high concentration water that rich Nitrogen element isolated by the alkaline ion water produced by Electrotransport devices premenstrual terminal membrane concentrating unit is connected to plant culturing liquid storage pond, creates the plant absorption that nutrition content is enough; Simultaneously, the lower concentration end of front end film condensing device is back to the acidic terminal of Electrotransport devices, the acidic terminal of described Electrotransport devices is connected to end film condensing device, the lower concentration end of described end film condensing device is connected to the process rear end of balancing tank, the process rear end of described balancing tank is connected to culturing pool, by constantly converting water-reducible method, in regulating and controlling pond, fish-farming circulating water " three nitrogen " and other pollutant load, guarantee the realization of cycle water fish-cultivating technique.
(2) the present invention is efficient and technique is simple, save ozonization operation, and below bury in oblivion the technological processs such as the activated carbon filtration of residual ozone, described preliminary filtration unit, the sewage that MBR ultra-filtration equipment and end film condensing device produce all enters to sludge sump, the supernatant liquor overflow of sludge sump enters plant culturing liquid storage pond, jointly as the nutritive medium of plant, realize batch production high-density fish farming sewage recycling to utilize, the material slag of sludge sump enters fertilizer factory, total system does not discharge any aquaculture wastewater to periphery basin, widespread pollution from the overuse of fertilizers and pesticides in rural area is administered from source.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the embodiment of the present invention.
In figure: 1-culturing pool, 2-plant growing structure, the preliminary filtration unit of 3-, 31-water collecting basin, 32-quartz filter, 4-balancing tank, 41-process front end, 411-overflow port, 42-process rear end, 5-sludge sump, 51-overflow port, 6-Electrotransport devices, 61-alkalescence end, 62-acidic terminal, 63-MBR ultra-filtration equipment, 631-clear water end, 632-sewage end, 64-bipolar membrane electrodialysis device, 7-front end film condensing device, 71-high density end, 72-lower concentration end, 8-plant culturing liquid storage pond, 9-end film condensing device, 91-high density end, 92-lower concentration end, 10-sludge dewatering equipment, 11-pure oxygen machine, 12-line mixer.
Embodiment
As shown in Figure 1, a kind of industrial circulating water fish farming denitrogenation Zero discharging system, comprise the culturing pool 1 in order to high-density breeding fish, pvc pipe formula soilless cultivation plant pattern of farming 2 has been built above described culturing pool 1, described culturing pool 1 is connected to preliminary filtration unit 3, described preliminary filtration unit 3 one road is connected to balancing tank 4, another road of described preliminary filtration unit 3 is connected to sludge sump 5, the process front end 41 of described balancing tank 4 is connected to Electrotransport devices 6, the alkalescence end 61 of described Electrotransport devices 6 is connected to front end film condensing device 7, the high density end 71 of described front end film condensing device 7 is connected to plant culturing liquid storage pond 8, the lower concentration end 72 of described front end film condensing device 7 is back to the acidic terminal 62 of Electrotransport devices 6, the acidic terminal 62 of described Electrotransport devices 6 is connected to end film condensing device 9, the lower concentration end 92 of described end film condensing device 9 is connected to the process rear end 42 of balancing tank 4, the high density end 92 of described end film condensing device 9 is connected to sludge sump 5, the process rear end 42 of described balancing tank 4 is connected to culturing pool 1.
In embodiments of the present invention, described Electrotransport devices 6 comprises the pressure pump, MBR ultra-filtration equipment 63 and the bipolar membrane electrodialysis device 64 that are connected successively with the process front end 41 of described balancing tank 4, and the clear water end 631 of described MBR ultra-filtration equipment 63 is connected to bipolar membrane electrodialysis device 64, the sewage end 632 of described MBR ultra-filtration equipment 63 is connected to sludge sump 5; That is, described MBR ultra-filtration equipment 63 is removed in macromolecular pollutent and water after SS, and the ultrafiltration supernatant liquid obtained enters described bipolar membrane electrodialysis device 64 from clear water end 631, and the sewage of recoil enters sludge sump 5 from sewage end 632; Described MBR ultra-filtration equipment 63 adopts tubular type MBR ultra-filtration equipment 63.
In embodiments of the present invention, the process front end 41 of described balancing tank 4 is higher than process rear end 42, and the midfeather between the process front end 41 of described balancing tank 4 and process rear end 42 is provided with some overflow ports 411 with magnetic valve, the process front end 41 of described balancing tank 4 is provided with ammonia nitrogen tester, and described some magnetic valves are connected with described ammonia nitrogen tester; When water body ammonia-nitrogen content in the process front end 41 of described balancing tank 4 exceedes set(ting)value, different cultivation fingerlings has different set(ting)values, shut electromagnetic valve, refuse to exceed standard process rear end 42 overflow of water body to described balancing tank 4, and open Electrotransport devices 6, front end film condensing device 7 and end film condensing device 9; When water body ammonia-nitrogen content in the process front end 41 of described balancing tank 4 is lower than set(ting)value, open magnetic valve, qualified water body is directly to process rear end 42 overflow of balancing tank 4, and be back to culturing pool 1 through line mixer 12, pure oxygen machine 11, and close Electrotransport devices 6, front end film condensing device 7 and end film condensing device 9, save the energy consumption of Electrotransport devices 6, front end film condensing device 7 and end film condensing device 9.In the different fish farming cycle, according to fish farming density and water quality condition, this magnetic valve and Electrotransport devices 6, front end film condensing device 7 and end film condensing device 9 can interval startup optimization, by being watered method, fish-farming circulating water " three nitrogen " and other pollutant load in regulating and controlling pond 4.As on-the-spot fish farming density < 20kg/m
2, Electrotransport devices 6, front end film condensing device 7 and end film condensing device 9 can run 3-6h every day, or run 5-10h every other day.
In embodiments of the present invention, described sludge sump 5 is arranged on described plant culturing liquid storage pond 8 side, and described sludge sump 5 is higher than plant culturing liquid storage pond 8, the overflow port 51 of described sludge sump 5 through being arranged on its top is store pond 8 with plant culturing liquid and is connected, the bottom of described sludge sump 5 is connected with sludge dewatering equipment 10, and the water side of described sludge dewatering equipment 10 is connected to plant culturing liquid storage pond 8, the material slag end of described sludge dewatering equipment 10 is external to fertilizer factory; When the alluvial of sludge sump 5 bottom settlings thing is too much, start sludge dewatering equipment 10, the clear water produced enters plant culturing liquid storage pond 8, and byproduct is the starting material that high concentration sludge can be used as fertilizer factory, realizes aquaculture wastewater recycling; Described sludge dewatering equipment 10 adopts folded spiral shell formula sludge dewatering equipment 10.
In embodiments of the present invention, the bottom of described culturing pool 1 is provided with in order to discharge self-stip water hammer-resistant Pneumatic drainage valve with the sewage of fish excrement and residual bait and water auto-regulation valve.
In embodiments of the present invention, described preliminary filtration unit 3 comprises and the water collecting basin 31 be connected bottom culturing pool 1, the quartz filter 32 that is connected with water collecting basin 31; Described quartz filter 32 returns to balancing tank 4 after removing the suspended particulate in water, forms the recirculated water master loop cycle; Described quartz filter 32 adopts full-automatic shallow-layer quartz filter 32.
In embodiments of the present invention, working shaft, pure oxygen machine 11 and line mixer 12 is provided with between the process rear end 42 of described balancing tank 4 and culturing pool 1.
In embodiments of the present invention, described front end film condensing device 7 adopts RO membrane sepn nitrogen rejection facility, and described end film condensing device 9 adopts RO membrane separation unit.
In embodiments of the present invention, between described culturing pool 1 and water collecting basin 31, between water collecting basin 31 and quartz filter 32, between the process front end 41 of balancing tank 4 and MBR ultra-filtration equipment 63, the water pump increasing hydraulic pressure is provided with between bipolar membrane electrodialysis device 64 and front end film condensing device 7, between bipolar membrane electrodialysis device 64 and end film condensing device 9 and between the process rear end 42 of equalizing tank and line mixer 12.
In embodiments of the present invention, discharge from the self-stip water hammer-resistant Pneumatic drainage valve at the bottom of pond and water auto-regulation valve with the sewage of fish excrement and residual bait in described culturing pool 1, enter water collecting basin 31, collect, store and balanced sewage water quality and quantity after after quartz filter 32 metre filter falls suspended particulate, the clear water obtained enters the process front end 41 of described balancing tank 4, and the sewage of recoil enters sludge sump 5, the clear water obtained is evacuated to MBR ultra-filtration equipment 63 from the process front end 41 of balancing tank 4, to remove in macromolecular pollutent and water after SS through MBR ultra-filtration equipment 63, the ultrafiltration supernatant liquid obtained enters described bipolar membrane electrodialysis device 64 through clear water end 631, and the sewage of recoil enters sludge sump 5 through sewage end 632, after the ultrafiltration supernatant liquid obtained enters described bipolar membrane electrodialysis device 64, the cavity block of bipolar membrane electrodialysis device 64 described in the anion-permeable in ultrafiltration supernatant liquid generates acid electrolyzed functional water, described acid electrolyzed functional water converges in acidic terminal 62, the anode membrane of bipolar membrane electrodialysis device 64 described in the cation permeable in ultrafiltration supernatant liquid generates alkaline ion water, described alkaline ion water converge in alkalescence end 61, in ultrafiltration supernatant liquid more than 90% ammonia nitrogen and heavy metal transformation in alkaline ion water, the alkaline ion water obtained passes into front end film condensing device 7 through alkalescence end 61, namely RO membrane sepn nitrogen rejection facility, the high nitrogen water formed is delivered to plant culturing liquid storage pond 8 through high density end 71, the clear water formed returns the acidic terminal 62 of bipolar membrane electrodialysis device 64 through lower concentration end 72, mix with acid electrolyzed functional water, oxidize away and be not easy by after the organic pollutant that moves, pass into end film condensing device 9, namely described RO membrane separation unit, the process rear end 42 that the clear water that further dilution is formed is back to equalizing tank through lower concentration end 92 forms cultivation recirculated water, the concentrated dense water formed is discharged to the sludge sump 5 of plant culturing liquid storage tank front end through high density end 91 further.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (8)
1. an industrial circulating water fish farming denitrogenation Zero discharging system, it is characterized in that: comprise the culturing pool in order to high-density breeding fish, plant growing structure has been built above described culturing pool, described culturing pool is connected to preliminary filtration unit, described preliminary filtration unit one road is connected to balancing tank, another road of described preliminary filtration unit is connected to sludge sump, the process front end of described balancing tank is connected to Electrotransport devices, the alkalescence end of described Electrotransport devices is connected to front end film condensing device, the high density end of described front end film condensing device is connected to plant culturing liquid storage pond, the lower concentration end of described front end film condensing device is back to the acidic terminal of Electrotransport devices, the acidic terminal of described Electrotransport devices is connected to end film condensing device, the lower concentration end of described end film condensing device is connected to the process rear end of balancing tank, the high density end of described end film condensing device is connected to sludge sump, the process rear end of described balancing tank is connected to culturing pool.
2. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, it is characterized in that: described Electrotransport devices comprises the pressure pump, MBR ultra-filtration equipment and the bipolar membrane electrodialysis device that are connected successively with the process front end of described balancing tank, the clear water end of described MBR ultra-filtration equipment is connected to bipolar membrane electrodialysis device, the sewage end of described MBR ultra-filtration equipment is connected to sludge sump.
3. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, it is characterized in that: the process front end of described balancing tank is higher than process rear end, and the midfeather between the process front end of described balancing tank and process rear end is provided with some overflow ports with magnetic valve, the process front end of described balancing tank is provided with ammonia nitrogen tester, and described some magnetic valves are connected with described ammonia nitrogen tester.
4. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, it is characterized in that: described sludge sump is arranged on described plant culturing liquid storage pond side, and described sludge sump is higher than plant culturing liquid storage pond, the overflow port of described sludge sump through being arranged on its top is store pond with plant culturing liquid and is connected, the bottom of described sludge sump is connected with sludge dewatering equipment, and the water side of described sludge dewatering equipment is connected to plant culturing liquid storage pond, the material slag end of described sludge dewatering equipment is external to fertilizer factory.
5. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, is characterized in that: the bottom of described culturing pool is provided with in order to discharge self-stip water hammer-resistant Pneumatic drainage valve with the sewage of fish excrement and residual bait and water auto-regulation valve.
6. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, is characterized in that: described preliminary filtration unit comprises and the water collecting basin be connected bottom culturing pool, the quartz filter that is connected with water collecting basin.
7. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, is characterized in that: be provided with working shaft, pure oxygen machine and line mixer between the process rear end of described balancing tank and culturing pool.
8. industrial circulating water fish farming denitrogenation Zero discharging system according to claim 1, is characterized in that: described front end film condensing device adopts RO membrane sepn nitrogen rejection facility, and described end film condensing device adopts RO membrane separation unit.
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| CN201510509381.0A CN105060648B (en) | 2015-08-19 | 2015-08-19 | Industrial circulating water fish culture denitrogenation Zero discharging system |
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| CN201510509381.0A CN105060648B (en) | 2015-08-19 | 2015-08-19 | Industrial circulating water fish culture denitrogenation Zero discharging system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110036837A (en) * | 2019-05-22 | 2019-07-23 | 新疆旭日昕昤环保科技有限公司 | Fruits and vegetables, aquatic products and the compound self-loopa cultural method of pig |
| CN110036838A (en) * | 2019-05-22 | 2019-07-23 | 新疆旭日昕昤环保科技有限公司 | Fruits and vegetables and the compound self-loopa cultural method of aquatic ecosystem water |
| CN111034600A (en) * | 2019-11-24 | 2020-04-21 | 南京长三角绿色发展研究院有限公司 | Novel green healthy house embellishment utensil |
| CN115594332A (en) * | 2022-09-20 | 2023-01-13 | 吴秋仙（Cn） | Method for treating aquaculture tail water |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110036837A (en) * | 2019-05-22 | 2019-07-23 | 新疆旭日昕昤环保科技有限公司 | Fruits and vegetables, aquatic products and the compound self-loopa cultural method of pig |
| CN110036838A (en) * | 2019-05-22 | 2019-07-23 | 新疆旭日昕昤环保科技有限公司 | Fruits and vegetables and the compound self-loopa cultural method of aquatic ecosystem water |
| CN110036837B (en) * | 2019-05-22 | 2021-11-23 | 新疆旭日昕昤环保科技有限公司 | Fruit and vegetable, aquatic product and pig compound self-circulation breeding method |
| 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 |
| CN111034600A (en) * | 2019-11-24 | 2020-04-21 | 南京长三角绿色发展研究院有限公司 | Novel green healthy house embellishment utensil |
| CN115594332A (en) * | 2022-09-20 | 2023-01-13 | 吴秋仙（Cn） | Method for treating aquaculture tail water |
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|---|---|
| CN105060648B (en) | 2017-05-31 |
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