CN103570194B - Chemical-biological collaborative nitrogen and phosphorus removal reactor - Google Patents
Chemical-biological collaborative nitrogen and phosphorus removal reactor Download PDFInfo
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- CN103570194B CN103570194B CN201310562457.7A CN201310562457A CN103570194B CN 103570194 B CN103570194 B CN 103570194B CN 201310562457 A CN201310562457 A CN 201310562457A CN 103570194 B CN103570194 B CN 103570194B
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- valent iron
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title abstract description 22
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title abstract description 17
- 229910052698 phosphorus Inorganic materials 0.000 title abstract description 15
- 239000011574 phosphorus Substances 0.000 title abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 title abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 55
- 238000005191 phase separation Methods 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- 238000005273 aeration Methods 0.000 claims description 18
- 239000004744 fabric Substances 0.000 claims description 17
- 238000010992 reflux Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 16
- 239000002351 wastewater Substances 0.000 abstract description 15
- 239000002699 waste material Substances 0.000 abstract description 8
- 239000003795 chemical substances by application Substances 0.000 abstract description 7
- 239000010802 sludge Substances 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 7
- 238000001556 precipitation Methods 0.000 abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 239000007789 gas Substances 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000003463 adsorbent Substances 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract 2
- 239000002440 industrial waste Substances 0.000 abstract 1
- 239000012716 precipitator Substances 0.000 abstract 1
- 230000000630 rising effect Effects 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002594 sorbent Substances 0.000 description 4
- 229910002651 NO3 Inorganic materials 0.000 description 3
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000001651 autotrophic effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000009388 chemical precipitation Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a chemical-biological collaborative nitrogen and phosphorus removal reactor. The reactor is provided with a water distribution region, a zero-valent iron filter region, a chemical-biological collaborative nitrogen and phosphorus removal region and a three-phase separation region from bottom to top in sequence, wherein the water distribution region is provided with an inlet water distributor and a bottom mud discharge port; the zero-valent iron filter region is provided with two zero-valent iron filling regions which are connected in series up and down; the chemical-biological collaborative nitrogen and phosphorus removal region is provided with a flow rising and guiding pipe, a chemical-biological reaction region and a chemical region from inside to outside in sequence; the three-phase separation region is provided with a gas release region and a precipitation region; the lower part of the sedimentation region is provided with a top mud discharge port, and the upper part of the sedimentation region is provided with an overflow weir and a water outlet. The reactor can be used for effectively solving the problem of insufficient carbon source in the wastewater biological nitrogen and phosphorus removal; a biological nitrogen removal substrate is provided by using industrial wastes such as dissolved scarp iron/iron cakes (zero-valent iron) to realize treatment of wastes with processes of wastes against one another; the reactor produces phosphorus removal precipitator and adsorbent per se, so that no external agents are required and the cost is saved; the produced sludge has high phosphorus content and the phosphorus resource recycling is facilitated.
Description
Technical field
The present invention relates to a kind of denitrogenation dephosphorizing reactor, relate in particular to the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological.
Background technology
Body eutrophication is the great environmental problem that China faces.According to " national Environmental statistics communique ", 659.2 hundred million tons of national wastewater emission amounts in 2011,260.4 ten thousand tons of ammonia nitrogen quantity dischargeds.According to another " China Environmental State Bulletin ", within 2012, in 62 state control emphasis lakes (reservoir), III class to bad V class water body accounts for 71.0%, and eutrophic state water body accounts for 86.7%, and main contamination index is total nitrogen and total phosphorus.Therefore, nitrogen and phosphorus pollution control has become China's great environmental protection subject urgently to be resolved hurrily.
Biological wastewater treatment technology is the mainstream technology of modern wastewater treatment.Through biological treatment (second-stage treatment), waste water COD concentration is substantially up to standard, but concentration of nitrogen and phosphorus still exceeds standard.For the low C:N:P of this class, than wastewater treatment, traditional wastewater biological denitrificaion (nitrated-denitrification) technique and biological phosphate-eliminating (aerobic suction phosphorus-anaerobic phosphorus release) technique is aobvious weak, and this is because these bioprocesss need electron donor, is conventionally provided by organism.Novel denitrification dephosphorization technique exploitation is extremely urgent.
Nitrate type anaerobism iron oxidation (Nitrate-dependent Anaerobic Ferrous Oxidation, NAFO) be the great discovery of environment and microorganism field, under anaerobic, some microorganisms can, taking ferrous salt as electron donor, be reduced to N by nitrate or nitrite
2(formula 1).Utilize this reaction to carry out denitrogenation of waste water, can effectively alleviate the carbon resource shortage problem in wastewater biological denitrificaion.Known by formula 1, NAFO biological denitrificaion reaction process produces acidic effluent, solubilized common industrial waste-iron filings/scum (Zero-valent Iron) etc., the Fe of generation
2+can be further used for NAFO denitrification process.On the other hand, dissolve the Fe producing
2+fe with the generation of NAFO denitrification process
3+and the biological sludge that is rich in molysite can be waste water dephosphorization precipitation agent and sorbent material are provided, finally realize the collaborative denitrogenation dephosphorizing of chemical-biological.
10FeCO
3+2NO
3 -+24H
2O→10Fe(OH)
3+N
2+10HCO
3 -+8H
+(1)
From the collaborative denitrogenation dephosphorizing principle of above-mentioned chemical-biological, this process can effectively solve the problem of carbon source deficiency in wastewater biological denitrificaion dephosphorization process; By the acidic effluent of backflow biological denitrification process, dissolve the trade wastes such as iron filings/scum (Zero-valent Iron), for biological denitrificaion provides matrix, realize the treatment of wastes with processes of wastes against one another; The Fe that utilizes inside reactor to produce
2+, NAFO denitrification process produce Fe
3+and the biological sludge that is rich in molysite is as dephosphorization precipitation agent and sorbent material, without additional chemical precipitation agent, saves running cost; By the appropriate design of inside reactor configuration and the reasonable control of aeration intensity, make chemical dephosphorization district in fluidized state, recyclable rich phosphorous sludge product, is conducive to the recycling of phosphor resource.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of chemical-biological to work in coordination with denitrogenation dephosphorizing reactor.
Reactor is provided with cloth pool, Zero-valent Iron filtrating area, the collaborative denitrogenation dephosphorizing district of chemical-biological and three-phase separation area from top to bottom successively, cloth pool bottom centre is provided with bottom mud discharging mouth, and middle part, cloth pool is provided with water inlet distributor, and water inlet distributor is connected with water-in, top, cloth pool is directly connected with Zero-valent Iron filtrating area, and Zero-valent Iron filtrating area is provided with Zero-valent Iron fill area, bottom and Zero-valent Iron fill area, top from top to bottom, Zero-valent Iron filtrating area is connected with the collaborative denitrogenation dephosphorizing of chemical-biological district by flange, the collaborative denitrogenation dephosphorizing of chemical-biological district is provided with up-flow thrust-augmenting nozzle from inside to outside successively, chemical-biological reaction zone and chemical reaction zone, up-flow thrust-augmenting nozzle bottom is provided with conical flow guiding cover, the collaborative denitrogenation dephosphorizing of chemical-biological district connects by top, chemical reaction zone and three-phase separation area, three-phase separation area is from inside to outside provided with top, chemical-biological reaction zone successively, outgas district and settling region, outgas district and settling region are separated by mud guard, three-phase separation area bottom is provided with top mud discharging mouth, three-phase separation area top is provided with overflow weir and water outlet, chemical-biological reaction zone center upper portion is provided with into stype hydrophone, entering stype hydrophone is connected with drug-feeding tube, bottom, chemical reaction zone is provided with post disc type and falls stream device, post disc type is fallen stream device bottom and is stocked district with the phegma of Zero-valent Iron filtrating area periphery and be connected, phegma is stocked bottom, district and is provided with refluxing opening, bottom, chemical reaction zone is provided with aeration head, aeration head bottom is connected with inlet pipe.
Zero-valent Iron fill area, bottom and the Zero-valent Iron fill area, top of described Zero-valent Iron filtrating area are lontitudinal series, the inner Zero-valent Iron materials such as iron filings/scum of filling; Described mud guard bottom is positioned at 1/5-1/3 place, three-phase separation area bottom, and up-flow thrust-augmenting nozzle top and mud guard bottom are positioned at same level height; The described stype hydrophone that enters is positioned at 1/5～1/4 place, three-phase separation area bottom; Described aeration head is positioned at 1/10～1/8 place, bottom, chemical reaction zone, at chemical reaction zone same level height, 4～8 identical aeration heads is evenly set; Described refluxing opening is positioned at phegma and stocks 1/4～1/3 place, bottom, district, and refluxing opening phegma flow and water-in flooding velocity ratio are 0.5～4.0; Described chemical-biological reaction zone and chemical reaction zone sectional area ratio are 2.0～6.0; Described bottom, cloth pool inclination alpha, three-phase separation area bottom tilt angle gamma, inclination angle, top, chemical-biological reaction zone ε are 50 °, and conical flow guiding cover cone angle beta is 30 °, and mud guard bottom inclination angle δ is 140 °.
The present invention's beneficial effect is compared with prior art: 1) reactor is made up of cloth pool, Zero-valent Iron filtrating area, the collaborative denitrogenation dephosphorizing district of chemical-biological and four unit of three-phase separation area, and adjacent cells has complementary functions, compact construction, and floor space is little; 2) coupling autotrophic type biological denitrification process and chemical dephosphorization technique, can effectively solve the carbon resource shortage problem in wastewater biological denitrificaion dephosphorization process; 3) utilize trade wastes such as dissolving iron filings/scum (Zero-valent Iron) that biological denitrificaion matrix is provided, realize the treatment of wastes with processes of wastes against one another; 4) utilize reactor from producing dephosphorization precipitation agent and sorbent material, without additional chemical agent, save cost; 5) by the appropriate design of inside reactor configuration and the reasonable control of aeration intensity, make chemical dephosphorization district in fluidized state, recyclable rich phosphorous sludge product, is conducive to the recycling of phosphor resource.
Brief description of the drawings
Fig. 1 is the collaborative denitrogenation dephosphorizing structure of reactor sectional view of a kind of chemical-biological;
Fig. 2 is the collaborative denitrogenation dephosphorizing structure of reactor A-A sectional view of a kind of chemical-biological;
Fig. 3 is the collaborative denitrogenation dephosphorizing structure of reactor B-B sectional view of a kind of chemical-biological.
In figure: cloth pool I, Zero-valent Iron filtrating area II, the collaborative denitrogenation dephosphorizing district III of chemical-biological, three-phase separation area IV; Stream device 10 falls in bottom mud discharging mouth 1, water-in 2, water inlet distributor 3, Zero-valent Iron fill area, bottom 4, Zero-valent Iron fill area, top 5, conical flow guiding cover 6, up-flow thrust-augmenting nozzle 7, chemical-biological reaction zone 8, chemical reaction zone 9, post disc type, phegma is stocked district 11, refluxing opening 12, flange 13, inlet pipe 14, aeration head 15, drug-feeding tube 16, entered stype hydrophone 17, mud guard 18, outgas district 19, settling region 20, overflow weir 21, water outlet 22, top mud discharging mouth 23.
Embodiment
As shown in Figure 1, 2, 3, reactor is provided with cloth pool I, Zero-valent Iron filtrating area II, the collaborative denitrogenation dephosphorizing district III of chemical-biological and three-phase separation area IV from top to bottom successively, cloth pool I bottom centre is provided with bottom mud discharging mouth 1, and I middle part in cloth pool is provided with water inlet distributor 3, and water inlet distributor 3 is connected with water-in 2, I top, cloth pool is directly connected with Zero-valent Iron filtrating area II, and Zero-valent Iron filtrating area II is provided with Zero-valent Iron fill area, bottom 4 and Zero-valent Iron fill area, top 5 from top to bottom, Zero-valent Iron filtrating area II is connected by the collaborative denitrogenation dephosphorizing district III of flange 13 and chemical-biological, the collaborative denitrogenation dephosphorizing district III of chemical-biological is provided with up-flow thrust-augmenting nozzle 7 from inside to outside successively, chemical-biological reaction zone 8 and chemical reaction zone 9, up-flow thrust-augmenting nozzle 7 bottoms are provided with conical flow guiding cover 6, the collaborative denitrogenation dephosphorizing district III of chemical-biological connects by 9 tops, chemical reaction zone and three-phase separation area IV, three-phase separation area IV is from inside to outside provided with 8 tops, chemical-biological reaction zone successively, outgas district 19 and settling region 20, outgas district 19 and settling region 20 are separated by mud guard 18, three-phase separation area IV bottom is provided with top mud discharging mouth 23, three-phase separation area IV top is provided with overflow weir 21 and water outlet 22, chemical-biological reaction zone 8 center upper portion are provided with into stype hydrophone 17, entering stype hydrophone 17 is connected with drug-feeding tube 16, bottom, chemical reaction zone (9) is provided with post disc type and falls stream device 10, post disc type is fallen stream device 10 bottoms and is stocked district 11 with the phegma of Zero-valent Iron filtrating area II periphery and be connected, phegma is stocked 11 bottoms, district and is provided with refluxing opening 12, 9 bottoms, chemical reaction zone are provided with aeration head 15, aeration head 15 bottoms are connected with inlet pipe 14.
Zero-valent Iron fill area, bottom 4 and the Zero-valent Iron fill area, top 5 of described Zero-valent Iron filtrating area II are lontitudinal series, the inner Zero-valent Iron materials such as iron filings/scum of filling; Described mud guard 18 bottoms are positioned at 1/5-1/3 place, three-phase separation area IV bottom, and up-flow thrust-augmenting nozzle 7 tops are positioned at same level height with gear mud 18 bottoms; The described stype hydrophone 17 that enters is positioned at 1/5～1/4 place, three-phase separation area IV bottom; Described aeration head 15 is positioned at 1/10～1/8 place, 9 bottom, chemical reaction zone, at chemical reaction zone 9 same level height, 4～8 identical aeration heads 15 is evenly set; Described refluxing opening 12 is positioned at phegma and stocks 1/4～1/3 place, 11 bottom, district, and refluxing opening 12 phegma flows and water-in 2 flooding velocity ratios are 0.5～4.0; Described chemical-biological reaction zone 8 is 2.0～6.0 with chemical reaction zone 9 sectional area ratios; Described cloth pool I bottom inclination alpha, three-phase separation area IV bottom tilt angle gamma, chemical-biological reaction zone 8 inclination angle, top ε are 50 °, and conical flow guiding cover 6 cone angle beta are 30 °, and mud guard 18 inclination angle, bottom δ are 140 °.
The collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological can be made of PVC plate and steel plate, its working process is as follows: containing the waste water of nitre nitrogen/nitrite nitrogen and phosphorus, and stock the solution (being acid) refluxing through refluxing opening 12 in district 11 together by water-in 2 by phegma, after mixing, water inlet distributor 3 enters reactor; Acidic solution upwards flows through Zero-valent Iron fill area, bottom 4 and Zero-valent Iron fill area, top 5 successively, is ferrous iron by Zero-valent Iron material dissolves such as iron filings/scums; Collect through up-flow thrust-augmenting nozzle 7 and enter 8 tops, chemical-biological reaction zone by conical flow guiding cover 6 containing ferrous waste water; The medicaments such as organism through drug-feeding tube 16 with enter stype hydrophone 17 and join 8 tops, chemical-biological reaction zone, dirtyly after mixing with containing ferrous waste water enter that biological denitrificaion is carried out in chemical-biological reaction zone 8 and chemical dephosphorization reacts; Simultaneously, entered the air of reactor by inlet pipe 14, after aeration head 15, promote solidliquid mixture and upwards flow in chemical reaction zone 9, can form certain negative pressure in 9 bottoms, chemical reaction zone, impel the interior dirty chemical reaction zone 9 that enters of solidliquid mixture through reaction, chemical-biological reaction zone 8; Be acid through the reacted liquid in chemical-biological reaction zone 8, enter behind chemical reaction zone 9, part upwards flows and carries out chemical dephosphorization, and part flows downward, and falls stream device 10 enter phegma and stock district 11 and stock backflow by post disc type; Enter chemical reaction zone 9 through the reacted solid in chemical-biological reaction zone 8 (comprising biological sludge and chemical sludge) and upwards flow, for waste water advanced dephosphorization provides sorbent material and precipitation agent.
Solidliquid mixture, under the effect of aeration head 15 aerations, is fluidized state in chemical reaction zone 9, and the phosphorus being beneficial in waste water fully contacts with precipitation agent with solid adsorbent, strengthens waste water dephosphorization effect, improves the phosphorus content in solid; Solid-liquid-gas mixture enters three-phase separation area IV through 9 tops, chemical reaction zone, wherein, gas enters atmosphere through outgas district 19, and solidliquid mixture carries out solid-liquid separation through settling region 20, liquid is discharged reactor by overflow weir 21 and water outlet 22, and solid is discharged reactor by top mud discharging mouth 23.
Claims (8)
1. the collaborative denitrogenation dephosphorizing reactor of chemical-biological, is characterized in that: reactor is provided with cloth pool (I), Zero-valent Iron filtrating area (II), the collaborative denitrogenation dephosphorizing district (III) of chemical-biological and three-phase separation area (IV) from top to bottom successively, cloth pool (I) bottom centre is provided with bottom mud discharging mouth (1), and cloth pool (I) middle part is provided with water inlet distributor (3), and water inlet distributor (3) is connected with water-in (2), top, cloth pool (I) is directly connected with Zero-valent Iron filtrating area (II), and Zero-valent Iron filtrating area (II) is provided with Zero-valent Iron fill area, bottom (4) and Zero-valent Iron fill area, top (5) from top to bottom, Zero-valent Iron filtrating area (II) is connected by the collaborative denitrogenation dephosphorizing district (III) of flange (13) and chemical-biological, the collaborative denitrogenation dephosphorizing district (III) of chemical-biological is provided with up-flow thrust-augmenting nozzle (7) from inside to outside successively, chemical-biological reaction zone (8) and chemical reaction zone (9), up-flow thrust-augmenting nozzle (7) bottom is provided with conical flow guiding cover (6), the collaborative denitrogenation dephosphorizing district (III) of chemical-biological connects by (9) top, chemical reaction zone and three-phase separation area (IV), three-phase separation area (IV) is from inside to outside provided with top, chemical-biological reaction zone (8) successively, outgas district (19) and settling region (20), separate by mud guard (18) outgas district (19) and settling region (20), three-phase separation area (IV) bottom is provided with top mud discharging mouth (23), three-phase separation area (IV) top is provided with overflow weir (21) and water outlet (22), chemical-biological reaction zone (8) center upper portion is provided with into stype hydrophone (17), entering stype hydrophone (17) is connected with drug-feeding tube (16), bottom, chemical reaction zone (9) is provided with post disc type and falls stream device (10), post disc type is fallen stream device (10) bottom and is stocked district (11) with the phegma of Zero-valent Iron filtrating area (II) periphery and be connected, phegma is stocked bottom, district (11) and is provided with refluxing opening (12), bottom, chemical reaction zone (9) is provided with aeration head (15), aeration head (15) bottom is connected with inlet pipe (14).
2. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, it is characterized in that: Zero-valent Iron fill area, bottom (4) and the Zero-valent Iron fill area, top (5) of described Zero-valent Iron filtrating area (II) are lontitudinal series inner iron filings/scum Zero-valent Iron material of filling.
3. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, it is characterized in that: described mud guard (18) bottom is positioned at 1/5-1/3 place, three-phase separation area (IV) bottom, up-flow thrust-augmenting nozzle (7) top and mud guard (18) bottom are positioned at same level height.
4. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, is characterized in that: the described stype hydrophone (17) that enters is positioned at 1/5 ~ 1/4 place, three-phase separation area IV bottom.
5. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, it is characterized in that: described aeration head (15) is positioned at 1/10 ~ 1/8 place, bottom, chemical reaction zone (9), and in chemical reaction zone, (9) same level height evenly arranges 4 ~ 8 identical aeration heads (15).
6. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, it is characterized in that: described refluxing opening (12) is positioned at phegma and stocks 1/4 ~ 1/3 place, bottom of district (11), refluxing opening (12) phegma flow and water-in (2) flooding velocity ratio are 0.5 ~ 4.0.
7. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, is characterized in that: described chemical-biological reaction zone (8) is 2.0 ~ 6.0 with chemical reaction zone (9) sectional area ratio.
8. the collaborative denitrogenation dephosphorizing reactor of a kind of chemical-biological according to claim 1, it is characterized in that: described bottom, cloth pool (I) inclination alpha, three-phase separation area (IV) bottom tilt angle gamma, chemical-biological reaction zone (8) inclination angle, top ε are 50 °, conical flow guiding cover (6) cone angle beta is 30 °, and mud guard (18) inclination angle, bottom δ is 140 °.
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| CN104108836B (en) * | 2014-08-01 | 2015-09-16 | 北京市环境保护科学研究院 | A kind of device and method of micro-polluted water synchronous denitrification dephosphorizing |
| RU2685304C2 (en) * | 2014-09-03 | 2019-04-17 | Кемира Ойй | Method for removing nitrogen from aqueous media |
| CN105645602B (en) * | 2016-03-30 | 2018-02-16 | 浙江大学 | A kind of strain gravity flow plus the efficient molysite denitrogenation reactor of formula and its method |
| CN108126636A (en) * | 2017-12-21 | 2018-06-08 | 张大玲 | A kind of chemical-biological cooperates with denitrogenation dephosphorizing reactor |
| CN110357367A (en) * | 2019-08-15 | 2019-10-22 | 沈阳环境科学研究院 | Based on low-intensity magnetic field-sewage water denitrification dephosphorization apparatus associated with Zero-valent Iron-MABR |
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| WO2012075615A1 (en) * | 2010-12-06 | 2012-06-14 | 南京大学 | Integrated bioreactor and use thereof and method for treating high content organic wastewater |
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