CN103641242A - Reinforced deep-denitrifying device with multi-point water-inflow coupling fixed film - Google Patents
Reinforced deep-denitrifying device with multi-point water-inflow coupling fixed film Download PDFInfo
- Publication number
- CN103641242A CN103641242A CN201310737724.XA CN201310737724A CN103641242A CN 103641242 A CN103641242 A CN 103641242A CN 201310737724 A CN201310737724 A CN 201310737724A CN 103641242 A CN103641242 A CN 103641242A
- Authority
- CN
- China
- Prior art keywords
- aerobic zone
- section
- paragraph
- segment
- oxygen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a reinforced deep-denitrifying device with a multi-point water-inflow coupling fixed film and relates to a denitrifying device, which aims at solving the problem that total nitrogen removing rate is limited by an existing stepped water-inflow A(Anoxic/O(Oxic) process, flow is complex, floor space is large, capital investment is high, deep-denitrifying control requirements are high and a control structure is complex. A flow rate regulating tank, a first-section main body structure and a second-section structure are arranged in sequence from the left to the right; a first-section mechanical stirring device and a second-section mechanical stirring device are respectively arranged in a first anoxic area and a second anoxic area, respectively; a first-section aerobic aeration area tube and a second-section aerobic area aeration tube are respectively arranged in a first aerobic area and a second aerobic area; a third-section main body structure and a rear anoxic tank are arranged in sequence from the left to the right; a third mechanical stirring device is arranged in a third anoxic zone; a rear anoxic area mechanical stirring device is arranged in the rear anoxic tank. The reinforced deep-denitrifying device disclosed by the invention is used for deep denitrifying of domestic wastewater and nitrogen-containing industrial wastewater of medium and small cities and towns.
Description
Technical field
The present invention and a kind of nitrogen rejection facility, deep denitrogenation device is strengthened in the multipoint water feeding coupling that is specifically related to a kind of nitrogenous effluent fixedly film, belongs to advanced treatment of wastewater field, is particularly useful for the advanced nitrogen of medium and small town domestic sewage and nitrogenous trade effluent.
Background technology
Eutrophication problem is one of topmost water pollution problems of facing of world, although the processing rate of China's municipal effluent improves constantly in recent years, but the body eutrophication problem being caused by nitrogen and phosphorus pollution does not obtain basic solution, even has day by day serious trend.The large-scale freshwater lake of China and immediate offshore area all reach the eutrophic pollution of moderate or severe.China has increased total nitrogen, the highest permission emission concentration of total phosphorus in 2002 in the new < < urban wastewater treatment firm pollutant emission standard > > promulgating, also water outlet ammonia nitrogen has been proposed to stricter requirement, the principal contradiction of visible sewage disposal is changed into the removal of nitrogen and phosphorus pollutants gradually by the removal of organic pollutant simultaneously.Phosphorus in sewage can be removed by dosing coagulant conventionally, but because the molecular weight of nitrogen compound (as NH4+ and NO3-) is smaller, cannot remove by adding medicament, the removal of nitrogen is difficult point and the emphasis of advanced treatment of wastewater, only has the bio-denitrification technology of utilization thoroughly to remove.
Multipoint water feeding A/O technique is a kind of denitrogenation novel process of getting up based on A/O technological development.This technique is comprised of 2-5 section anoxic/aerobic order conventionally, and former water enters reactor from the oxygen-starved area of each section respectively, for denitrification provides carbon source.But, because only carrying out nitration reaction, the sewage of final stage there is no Denitrification Conditions, and water outlet must contain certain nitrate nitrogen.A method that improves subsection water inflow A/O technique nitric efficiency is to improve system sludge reflux ratio, but return sludge ratio must have certain restriction, strengthening backflow meeting impacts the hydraulic detention time of system, increase hydraulic load and the solid loading of second pond, also the dissolved oxygen of final stage aerobic zone can be carried to the first oxygen-starved area, to anoxic denitrification, cause disadvantageous effect.In addition, for low C/N, than sanitary sewage, need a large amount of outer carbon sources that adds to improve nitrogen removal rate.Carbon source adds conventionally in the oxygen-starved area of system final stage, after connect again aeration zone to remove residue carbon source, to guarantee that water outlet COD meets emission standard.Like this, can not guarantee that carbon source dosage is minimum on the one hand, on the other hand, increase aeration working cost.Take four-section water-feeding A/O as example, be in fact equivalent to three sections of operations, the meaning of multipoint water feeding is had a greatly reduced quality, and can not fundamentally improve removal effect, working cost is also higher.In addition, because multipoint water feeding causes each section of sludge concentration distribution gradient, the sludge concentration of final stage is conventionally lower, and for guaranteeing good mud concentrating and precipitating effect, second pond volume is conventionally larger.
In sum, existing nitrogen rejection facility exists the restriction of subsection water inflow A/O process structure to cause nitrogen removal rate limited; Flow process is complicated, takes up an area greatly, and initial cost is high; Advanced nitrogen is controlled the problem high, control texture is complicated that requires.
Summary of the invention
The object of the invention is to cause nitrogen removal rate limited in order to solve existing subsection water inflow A/O process structure restriction; Flow process is complicated, takes up an area greatly, and initial cost is high; Advanced nitrogen is controlled the problem high, control texture is complicated that requires.And then provide the coupling of a kind of multipoint water feeding fixedly film strengthen deep denitrogenation device.
Technical scheme of the present invention is: a kind of multipoint water feeding coupling is film strengthening deep denitrogenation device fixedly, it comprises Flow-rate adjustment pond, first paragraph flooding velocity pump, second segment flooding velocity pump, first paragraph main body structures, second segment structures, first paragraph mechanical stirring device, second segment mechanical stirring device, first paragraph aerobic zone aeration tube, second segment aerobic zone aeration tube, first paragraph aerobic zone air feeder, second segment aerobic zone air feeder and first paragraph rising pipe, Flow-rate adjustment pond, first paragraph main body structures and second segment structures set gradually from left to right, in first paragraph main body structures, by dividing plate, be divided into the first oxygen-starved area and the first aerobic zone, and the bottom of the first oxygen-starved area and the first aerobic zone is communicated with, in second segment structures, by dividing plate, be divided into the second oxygen-starved area and the second aerobic zone, and the bottom of the second oxygen-starved area and the second aerobic zone is communicated with, first paragraph mechanical stirring device and second segment mechanical stirring device are separately positioned in the first oxygen-starved area and the second oxygen-starved area, first paragraph aerobic zone aeration tube and second segment aerobic zone aeration tube are separately positioned in the first aerobic zone and the second aerobic zone, first paragraph aerobic zone air feeder is connected with first paragraph aerobic zone aeration tube, second segment aerobic zone air feeder is connected with second segment aerobic zone aeration tube, between the first oxygen-starved area of Flow-rate adjustment pond and first paragraph main body structures, be provided with first paragraph flooding velocity pump, between Flow-rate adjustment pond and the second oxygen-starved area of second segment structures, be provided with second segment flooding velocity pump, between first paragraph flooding velocity pump and second segment flooding velocity pump, by first paragraph rising pipe, be connected, described nitrogen rejection facility also comprises second segment rising pipe, the 3rd section of main body structures, rearmounted anoxic pond, the 3rd section of flooding velocity pump, the 3rd mechanical stirring device, rearmounted oxygen-starved area mechanical stirring device, the 3rd section of aerobic zone aeration tube, the 3rd section of aerobic zone air feeder, fixing film, go out water pump, the 3rd sludge out pipe, inner circulation of sludge pump, sludge reflux pump and outer carbon source add pump, the 3rd section of main body structures are connected with the 3rd sludge out pipe by second segment rising pipe from left to right successively with rearmounted anoxic pond, in the 3rd section of main body structures, by dividing plate, be divided into the 3rd oxygen-starved area and the 3rd aerobic membrane biological reaction district, and the bottom in the 3rd oxygen-starved area and the 3rd aerobic membrane biological reaction district is communicated with, the 3rd mechanical stirring device is arranged in the 3rd oxygen-starved area, rearmounted oxygen-starved area mechanical stirring device is arranged in rearmounted anoxic pond, fixedly film is arranged in the 3rd aerobic membrane biological reaction district, water after the 3rd aerobic membrane biological reaction district processes is discharged through going out water pump, the 3rd section of aerobic zone aeration tube is arranged in the 3rd aerobic membrane biological reaction district, the 3rd section of aerobic zone air feeder is connected with the 3rd section of aerobic zone aeration tube, between Flow-rate adjustment pond and the 3rd oxygen-starved area, be provided with the 3rd section of flooding velocity pump, outer carbon source adds pump and is connected with rearmounted anoxic pond, between the 3rd section of main body structures and rearmounted anoxic pond, be provided with inner circulation of sludge pump, between first paragraph main body structures and rearmounted anoxic pond, be provided with sludge reflux pump.
The present invention compared with prior art has following effect:
1. the present invention improves traditional multipoint water feeding A/O process structure, by setting up aerobic membrane bioreactor and the rearmounted oxygen-starved area deoxidation district of holding concurrently, advanced nitrogen can be realized good mud-water separation simultaneously, save secondary sedimentation basins and sludge thickener, simplify technique, save and take up an area, and reduce systematic running cost and use.
2. the present invention arranges the deoxidation district of holding concurrently, rearmounted oxygen-starved area at system end, and the nitrate nitrogen that can produce above for system carries out carbon source and adds, and reduces water outlet nitrate nitrogen concentration, improves TN clearance.And can effectively avoid a large amount of dissolved oxygens to be back to system the first oxygen-starved area with returned sluge, to anoxic denitrification, cause disadvantageous effect.
3. the present invention sets up nitrate nitrogen internal recycle facility in rearmounted oxygen-starved area, part nitrate nitrogen can be back to system the 3rd oxygen-starved area, can make full use of the denitrification capacity of the 3rd section, strengthened denitrification effect, reduce working cost, working cost has been saved 30-50%.
4. the present invention arranges carbon source in rearmounted oxygen-starved area and adds facility, and the nitrate nitrogen that can produce according to preceding paragraphs carries out carbon source and adds, and realizes the removal completely of nitrogen.In addition, because the concentration of rearmounted oxygen-starved area nitrate nitrogen is very low, sludge reflux, to system the first oxygen-starved area, easily forms anaerobic environment in the first oxygen-starved area, impels the excessive release of phosphorus, and then realizes the part removal of phosphorus.
5. the present invention arranges the 3rd aerobic membrane bioreactor, and water outlet ammonia nitrogen concentration can be low to moderate below 5mg/L, and concentration of suspension is low to moderate 2mg/L, and outlet effect can meet country-level A emission standard.Sludge concentration that membrane bioreactor is discharged is high, yield poorly, sludge concentration is up to more than 10000mg/L, be easy to realize mud-water separation, can save follow-up secondary sedimentation basins and sludge thickener, effectively reduce required floor space and reduce initial cost, floor space has reduced 1/3rd.
6. the 3rd section of aerobic zone of the present invention arranges fixedly film, water side the secondary sedimentation basins in rearmounted hypoxia response district replacement traditional technology is set, and arranges and refluxes and inner loop mode, and the advanced nitrogen that is particularly useful for Small Urban municipal effluent, trade effluent is processed.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, present embodiment comprises Flow-rate adjustment pond 1, first paragraph flooding velocity pump 13, second segment flooding velocity pump 14, first paragraph main body structures 2, second segment structures 3, first paragraph mechanical stirring device 9, second segment mechanical stirring device 10, first paragraph aerobic zone aeration tube 19, second segment aerobic zone aeration tube 20, first paragraph aerobic zone air feeder 16, second segment aerobic zone air feeder 17 and first paragraph rising pipe 6, Flow-rate adjustment pond 1, first paragraph main body structures 2 and second segment structures 3 set gradually from left to right, in first paragraph main body structures 2, by dividing plate, be divided into the first oxygen-starved area A and the first aerobic zone B, and the bottom of the first oxygen-starved area A and the first aerobic zone B is communicated with, in second segment structures 3, by dividing plate, be divided into the second oxygen-starved area C and the second aerobic zone D, and the bottom of the second oxygen-starved area C and the second aerobic zone D is communicated with, first paragraph mechanical stirring device 9 and second segment mechanical stirring device 10 are separately positioned in the first oxygen-starved area A and the second oxygen-starved area C, first paragraph aerobic zone aeration tube 19 and second segment aerobic zone aeration tube 20 are separately positioned in the first aerobic zone B and the second aerobic zone D, first paragraph aerobic zone air feeder 16 is connected with first paragraph aerobic zone aeration tube 19, second segment aerobic zone air feeder 17 is connected with second segment aerobic zone aeration tube 20, between Flow-rate adjustment pond 1 and the first oxygen-starved area A of first paragraph main body structures 2, be provided with first paragraph flooding velocity pump 13, between the second oxygen-starved area C of Flow-rate adjustment pond 1 and second segment structures 3, be provided with second segment flooding velocity pump 14, between first paragraph flooding velocity pump 13 and second segment flooding velocity pump 14, by first paragraph rising pipe 6, be connected, described nitrogen rejection facility also comprises second segment rising pipe 7, the 3rd section of main body structures 4, rearmounted anoxic pond 5, the 3rd section of flooding velocity pump 15, the 3rd mechanical stirring device 11, rearmounted oxygen-starved area mechanical stirring device 12, the 3rd section of aerobic zone aeration tube 21, the 3rd section of aerobic zone air feeder 18, fixedly film 24, go out water pump 25, the 3rd sludge out pipe 8, inner circulation of sludge pump 22, sludge reflux pump 23 and outer carbon source add pump 26, the 3rd section of main body structures 4 are connected with the 3rd sludge out pipe 8 by second segment rising pipe 7 from left to right successively with rearmounted anoxic pond 5, in the 3rd section of main body structures 4, by dividing plate, be divided into the 3rd oxygen-starved area E and the 3rd aerobic membrane biological reaction district F, and the bottom of the 3rd oxygen-starved area E and the 3rd aerobic membrane biological reaction district F is communicated with, the 3rd mechanical stirring device 11 is arranged in the 3rd oxygen-starved area E, rearmounted oxygen-starved area mechanical stirring device 12 is arranged in rearmounted anoxic pond 5, fixedly film 24 is arranged in the 3rd aerobic membrane biological reaction district F, water after the 3rd aerobic membrane biological reaction district F processes is discharged through going out water pump 25, the 3rd section of aerobic zone aeration tube 21 is arranged in the 3rd aerobic membrane biological reaction district F, the 3rd section of aerobic zone air feeder 18 is connected with the 3rd section of aerobic zone aeration tube 21, between Flow-rate adjustment pond 1 and the 3rd oxygen-starved area E, be provided with the 3rd section of flooding velocity pump 15, outer carbon source adds pump 26 and is connected with rearmounted anoxic pond 5, between the 3rd section of main body structures 4 and rearmounted anoxic pond 5, be provided with inner circulation of sludge pump 22, between first paragraph main body structures 2 and rearmounted anoxic pond 5, be provided with sludge reflux pump 23.
Present embodiment, except adopting the mode of multipoint water feeding, adopts the fixedly membrane bioreactor of film in the 3rd aerobic zone, and muddy water, through membrane filtration, goes out water suspension (SS) concentration very low, and under low temperature, the clearance of ammonia nitrogen also can reach more than 98%.The mud of the higher concentration that membrane bioreactor is discharged enters rearmounted anoxic pond.The setting of membrane bioreactor and rearmounted anoxic pond, has realized mud-water separation effectively, thereby has saved traditional secondary sedimentation basins, reduces floor space, reduces investment.In addition, membrane bioreactor and the higher sludge concentration of rear anoxic pond, also make the sewage sludge solid residence time increase, and reduces sludge yield, saves sludge concentration device, also reduces the cost of sludge treatment.Rear anoxic pond can add a small amount of carbon source (as methyl alcohol), can greatly reduce water outlet total nitrogen concentration.For general municipal effluent, water outlet total nitrogen concentration can reach below 5mg/L conventionally.
Embodiment two: present embodiment is described in conjunction with Fig. 1, the first paragraph mechanical stirring device 9 of present embodiment, second segment mechanical stirring device 10, the 3rd mechanical stirring device 11, rearmounted oxygen-starved area mechanical stirring device 12 include motor 27, stir shaft 28 and stirring rake 29, and motor 27, stir shaft 28 and stirring rake 29 are from top to bottom connected successively.So arrange, simple in structure, mixing effect is good.Other composition and annexation are identical with embodiment one.
Embodiment three: present embodiment is described in conjunction with Fig. 1, partition wall bottom face in the first paragraph main body structures 2 of present embodiment, second segment structures 3 and the 3rd section of main body structures 4 arranged the mouth of a river, cross the mouth of a river for square, determining according to minimax flooding velocity every day of size, guarantees that flow velocity is 0.8m/s～2.5m/s.So arrange, make pollutent more abundant with mixing of active sludge, and be beneficial to the formation of plug-flow pattern.Other composition and annexation are identical with embodiment one.
Embodiment four: present embodiment is described in conjunction with Fig. 1, the first paragraph aerobic zone aeration tube 19 of present embodiment, second segment aerobic zone aeration tube 20 and the 3rd section of aerobic zone aeration tube 21 are separately positioned on the bottom, pond in first paragraph main body structures 2, second segment structures 3 and the 3rd section of main body structures 4, and described first paragraph aerobic zone aeration tube 19, second segment aerobic zone aeration tube 20 and the 3rd section of aerobic zone aeration tube 21 are 10cm～30cm apart from the distance at the bottom of pond.So arrange, aeration is effective.Other composition and annexation are identical with embodiment one.
Embodiment five: in conjunction with Fig. 1, present embodiment is described, the lower rim of the fixedly film 24 in the 3rd section of main body structures 4 of present embodiment and the distance between the 3rd section of aerobic zone aeration tube 21 in the 3rd section of main body structures 4 are 20cm～40cm.So arrange, aeration is effective.Other composition and annexation are identical with embodiment one.
Multipoint water feeding coupling of the present invention is film strengthening deep denitrogenation device fixedly, the aerobic zone of the latter end of traditional multipoint water feeding A/O technique is adopted to membrane bioreactor, set up rearmounted oxygen-starved area, between rearmounted oxygen-starved area and the 3rd section of oxygen-starved area, inner loop pipeline is set, the muddy water mixed solution that contains nitrate nitrogen is back to the 3rd section of oxygen-starved area, nitrate nitrogen is carried out to denitrification; Between rearmounted oxygen-starved area and first paragraph oxygen-starved area, sludge reflux pipeline is set, high concentration sludge is back to first paragraph oxygen-starved area, the sludge concentration that assurance system is higher.Concrete principle is as follows:
Multipoint water feeding coupling of the present invention is film strengthening deep denitrogenation device fixedly, raw waste water divides in oxygen-starved area, enter reactor respectively at 3, the water inlet of first paragraph oxygen-starved area can be denitrification provides carbon source, combined sewage enters first paragraph aerobic zone and carries out nitration reaction, ammonia nitrogen in sewage is oxidized to nitrate nitrogen, combined sewage enters second segment oxygen-starved area, the denitrification that the water inlet of second segment oxygen-starved area is nitrate nitrogen provides carbon source, nitrate nitrogen is reduced into nitrogen overflows from system, second segment influent ammonia nitrogen carries out nitration reaction in second segment aerobic zone, be oxidized to nitrate nitrogen, mixed solution enters the 3rd section of oxygen-starved area again, the 3rd section of oxygen-starved area water inlet provides carbon source for nitrate nitrogen is reduced into nitrogen, the nitrogen generating is overflowed from system, combined sewage enters the membrane bioreactor of the 3rd section of aerobic zone, combined sewage is under oxygen effect, and through membrane filtration, can remove more than 98% ammonia nitrogen, 100% suspended substance (SS) is also removed.The processing water of the 3rd section of aerobic zone membrane bioreactor generation aspirates through pump, and outside discharge system, the mud mixture of remaining higher concentration, enters rearmounted oxygen-starved area is set separately, only stirs, and does not carry out aeration, and sewage is not entered in rearmounted oxygen-starved area, only adds carbon source.Nitrate nitrogen internal reflux facility is set in rearmounted oxygen-starved area, the remaining nitrate nitrogen part in rearmounted oxygen-starved area is back to the 3rd section of oxygen-starved area, the carbon source that can make full use of on the one hand the 3rd section of oxygen-starved area water inlet is carried out denitrification, can reduce on the other hand the carbon source dosage of rear oxygen-starved area, reduce working cost.In addition rearmounted oxygen-starved area also arranges sludge reflux facility, by a part of sludge reflux to first paragraph oxygen-starved area, to guarantee that system sludge amount is stable.
Structural improvement above, can save secondary sedimentation basins and sludge thickener, and the system that guarantees is under lower working cost, reaches the object of advanced nitrogen.
Using certain real life sewage as experimental subjects (COD=180-260mg/L, TN=34-46mg/L).The multipoint water feeding coupling adopting is film strengthening deep denitrogenation device 200L fixedly, and first paragraph main body structures, second segment main body structures, the 3rd section of main body structures volume are 60L, rearmounted hypoxia response district volume 20L.The PVDF hollow fiber ultrafiltration membrane that Yi Zuyoumou company produces is set in the 3rd section of aerobic membrane bioreactor, and membrane pore size is 0.04 μ m, membrane area 1.2m2.In rearmounted hypoxia response district, nitrate nitrogen internal recycle facility is set, muddy water mixed solution is back to the head end of the 3rd section of main body structures.System arranges 3 air compressor machines, and maximum air output is 8m3/h, and minimum air output is 0.System arranges 3 intake pumps, arranges 1 and goes out water pump.After reactor start-up, first carry out sludge seeding, the go forward side by side cultivation domestication of 40 days behavior phases, after domestication finishes, the sludge concentration of each section is: first paragraph oxygen-starved area A and aerobic zone B are 5-6.2g/L, second segment oxygen-starved area C and aerobic zone D are 4.2-4.8g/L, the 3rd section of oxygen-starved area E is 2.8-3.2g/L, the mud extraction concentration of the 3rd section of aerobic zone F is 9.8-11.2g/L, and rearmounted oxygen-starved area G is 8.0-10.4g/L.
Now according to the practical situation of sanitary sewage, provide embodiment mono-:
Reactor day is processed water yield 600L, and each section of flooding quantity is 200L/d, and temperature of reaction is 20 ℃.After system stability, the outlet aeration rate of air compressor machine is adjusted into 2m3/h, internal recycle flow is 300L/d, and sludge reflux amount is 300L/d, and going out pump capacity constant is 480L/d, does not add outer carbon source.
Multipoint water feeding coupling fixedly film is strengthened after deep denitrogenation device, and final outflow water ammonia nitrogen is 0.8-2.4mg/L, and total nitrogen 5.6-9.7mg/L, far below the desired ammonia nitrogen concentration of national grade one discharge standard (≤5mg/L) and total nitrogen concentration (≤15mg/L).
Now according to the practical situation of sanitary sewage, provide embodiment mono-:
Reactor day is processed water yield 600L, and first paragraph flooding quantity is 160L/d, second segment 200L/d, and the 3rd section of flooding quantity 240L/d, temperature of reaction is 20 ℃.After system stability, the outlet aeration rate of first paragraph air compressor machine is adjusted into 1.8m3/h, the aeration rate of second segment air compressor machine is adjusted into 2.2m3/h, the aeration rate of the 3rd section of air compressor machine is adjusted into 3.0m3/h, internal recycle flow is 270L/d, and sludge reflux amount is 270L/d, and going out pump capacity constant is 480L/d, to system, add outer carbon source methyl alcohol, dosage is 80g/d.
Multipoint water feeding coupling fixedly film is strengthened after deep denitrogenation device, final outflow water ammonia nitrogen is 0.3-3.2mg/L, total nitrogen 1.2-4.7mg/L, far below the desired ammonia nitrogen concentration of national grade one discharge standard (≤5mg/L) and total nitrogen concentration (≤15mg/L), reaches advanced nitrogen.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For this person of an ordinary skill in the technical field, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the definite scope of patent protection of claims that the present invention submits to.
Claims (5)
- Multipoint water feeding coupling fixedly film strengthen deep denitrogenation device, it comprises Flow-rate adjustment pond (1), first paragraph flooding velocity pump (13), second segment flooding velocity pump (14), first paragraph main body structures (2), second segment structures (3), first paragraph mechanical stirring device (9), second segment mechanical stirring device (10), first paragraph aerobic zone aeration tube (19), second segment aerobic zone aeration tube (20), first paragraph aerobic zone air feeder (16), second segment aerobic zone air feeder (17) and first paragraph rising pipe (6), Flow-rate adjustment pond (1), first paragraph main body structures (2) and second segment structures (3) set gradually from left to right, in first paragraph main body structures (2), by dividing plate, be divided into the first oxygen-starved area (A) and the first aerobic zone (B), and the bottom of the first oxygen-starved area (A) and the first aerobic zone (B) is communicated with, in second segment structures (3), by dividing plate, be divided into the second oxygen-starved area (C) and the second aerobic zone (D), and the bottom of the second oxygen-starved area (C) and the second aerobic zone (D) is communicated with, first paragraph mechanical stirring device (9) and second segment mechanical stirring device (10) are separately positioned in the first oxygen-starved area (A) and the second oxygen-starved area (C), first paragraph aerobic zone aeration tube (19) and second segment aerobic zone aeration tube (20) are separately positioned in the first aerobic zone (B) and the second aerobic zone (D), first paragraph aerobic zone air feeder (16) is connected with first paragraph aerobic zone aeration tube (19), second segment aerobic zone air feeder (17) is connected with second segment aerobic zone aeration tube (20), between first oxygen-starved area (A) of Flow-rate adjustment pond (1) and first paragraph main body structures (2), be provided with first paragraph flooding velocity pump (13), between second oxygen-starved area (C) of Flow-rate adjustment pond (1) and second segment structures (3), be provided with second segment flooding velocity pump (14), between first paragraph flooding velocity pump (13) and second segment flooding velocity pump (14), by first paragraph rising pipe (6), be connected, it is characterized in that: described nitrogen rejection facility also comprises second segment rising pipe (7), the 3rd section of main body structures (4), rearmounted anoxic pond (5), the 3rd section of flooding velocity pump (15), the 3rd mechanical stirring device (11), rearmounted oxygen-starved area mechanical stirring device (12), the 3rd section of aerobic zone aeration tube (21), the 3rd section of aerobic zone air feeder (18), fixing film (24), go out water pump (25), the 3rd sludge out pipe (8), inner circulation of sludge pump (22), sludge reflux pump (23) and outer carbon source add pump (26), the 3rd section of main body structures (4) are connected with the 3rd sludge out pipe (8) by second segment rising pipe (7) from left to right successively with rearmounted anoxic pond (5), in the 3rd section of main body structures (4), by dividing plate, be divided into the 3rd oxygen-starved area (E) and the 3rd aerobic membrane biological reaction district (F), and the bottom in the 3rd oxygen-starved area (E) and the 3rd aerobic membrane biological reaction district (F) is communicated with, the 3rd mechanical stirring device (11) is arranged in the 3rd oxygen-starved area (E), rearmounted oxygen-starved area mechanical stirring device (12) is arranged in rearmounted anoxic pond (5), fixedly film (24) is arranged in the 3rd aerobic membrane biological reaction district (F), water after the 3rd aerobic membrane biological reaction district (F) processes is discharged through going out water pump (25), the 3rd section of aerobic zone aeration tube (21) is arranged in the 3rd aerobic membrane biological reaction district (F), the 3rd section of aerobic zone air feeder (18) is connected with the 3rd section of aerobic zone aeration tube (21), between Flow-rate adjustment pond (1) and the 3rd oxygen-starved area (E), be provided with the 3rd section of flooding velocity pump (15), outer carbon source adds pump (26) and is connected with rearmounted anoxic pond (5), between the 3rd section of main body structures (4) and rearmounted anoxic pond (5), be provided with inner circulation of sludge pump (22), between first paragraph main body structures (2) and rearmounted anoxic pond (5), be provided with sludge reflux pump (23).
- A kind of multipoint water feeding coupling according to claim 1 fixedly film strengthen deep denitrogenation device, it is characterized in that: described first paragraph mechanical stirring device (9), second segment mechanical stirring device (10), the 3rd mechanical stirring device (11), rearmounted oxygen-starved area mechanical stirring device (12) include motor (27), stir shaft (28) and stirring rake (29), and motor (27), stir shaft (28) and stirring rake (29) are from top to bottom connected successively.
- A kind of multipoint water feeding coupling according to claim 2 fixedly film strengthen deep denitrogenation device, it is characterized in that: the partition wall bottom face in described first paragraph main body structures (2), second segment structures (3) and the 3rd section of main body structures (4) arranged the mouth of a river, cross the mouth of a river for square, the described mouth of a river of crossing can guarantee that flow velocity is that the water of 0.8m/s～2.5m/s passes through.
- A kind of multipoint water feeding coupling according to claim 3 fixedly film strengthen deep denitrogenation device, it is characterized in that: described first paragraph aerobic zone aeration tube (19), second segment aerobic zone aeration tube (20) and the 3rd section of aerobic zone aeration tube (21) are separately positioned on the bottom, pond in first paragraph main body structures (2), second segment structures (3) and the 3rd section of main body structures (4), described first paragraph aerobic zone aeration tube (19), second segment aerobic zone aeration tube (20) and the 3rd section of aerobic zone aeration tube (21) are 10cm～30cm apart from the distance at the bottom of pond.
- 5. the fixing film strengthening deep denitrogenation device of a kind of multipoint water feeding coupling according to claim 4, is characterized in that: the distance between interior the 3rd section of aerobic zone aeration tube (21) of the lower rim of the fixedly film (24) in described the 3rd section of main body structures (4) and the 3rd section of main body structures (4) is 20cm～40cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737724.XA CN103641242B (en) | 2013-12-29 | 2013-12-29 | Reinforced deep-denitrifying device with multi-point water-inflow coupling fixed film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737724.XA CN103641242B (en) | 2013-12-29 | 2013-12-29 | Reinforced deep-denitrifying device with multi-point water-inflow coupling fixed film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103641242A true CN103641242A (en) | 2014-03-19 |
| CN103641242B CN103641242B (en) | 2014-12-31 |
Family
ID=50246579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310737724.XA Active CN103641242B (en) | 2013-12-29 | 2013-12-29 | Reinforced deep-denitrifying device with multi-point water-inflow coupling fixed film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103641242B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556381A (en) * | 2015-01-01 | 2015-04-29 | 北京工业大学 | Device and method for strengthening denitrification and advanced nitrogen removal of internal carbon source by improved UCT sectional water feeding process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6231766B1 (en) * | 1998-01-31 | 2001-05-15 | Tvt Us Corp. | Water treatment process |
| CN101012088A (en) * | 2007-02-01 | 2007-08-08 | 北京工业大学 | Low-oxygen aeration control device and method for subsection water inflow A/O biological denitrification technique |
| CN101028956A (en) * | 2007-02-06 | 2007-09-05 | 北京工业大学 | Controller for multi-section water-inlet A/O biological denitrifying dissolved oxygen and carbon-source feed |
| CN201952333U (en) * | 2011-03-14 | 2011-08-31 | 四川四通欧美环境工程有限公司 | Internal-circulation AAO-MBR (Anaerobic-Anoxic-Oxic-Membrane Bio-Reactor) sewage-processing reaction-tank system |
| CN203639239U (en) * | 2013-12-29 | 2014-06-11 | 黑龙江工程学院 | Multi-point water feeding coupled fixed film reinforced deep denitrification device |
-
2013
- 2013-12-29 CN CN201310737724.XA patent/CN103641242B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6231766B1 (en) * | 1998-01-31 | 2001-05-15 | Tvt Us Corp. | Water treatment process |
| CN101012088A (en) * | 2007-02-01 | 2007-08-08 | 北京工业大学 | Low-oxygen aeration control device and method for subsection water inflow A/O biological denitrification technique |
| CN101028956A (en) * | 2007-02-06 | 2007-09-05 | 北京工业大学 | Controller for multi-section water-inlet A/O biological denitrifying dissolved oxygen and carbon-source feed |
| CN201952333U (en) * | 2011-03-14 | 2011-08-31 | 四川四通欧美环境工程有限公司 | Internal-circulation AAO-MBR (Anaerobic-Anoxic-Oxic-Membrane Bio-Reactor) sewage-processing reaction-tank system |
| CN203639239U (en) * | 2013-12-29 | 2014-06-11 | 黑龙江工程学院 | Multi-point water feeding coupled fixed film reinforced deep denitrification device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556381A (en) * | 2015-01-01 | 2015-04-29 | 北京工业大学 | Device and method for strengthening denitrification and advanced nitrogen removal of internal carbon source by improved UCT sectional water feeding process |
| CN104556381B (en) * | 2015-01-01 | 2016-08-24 | 北京工业大学 | The device and method of improvement UCT step feed technology strengthening internal carbon source denitrification advanced nitrogen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103641242B (en) | 2014-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100569667C (en) | Modified four-section water-feeding A/O deep denitrogenation device and course control method for use | |
| CN101570382B (en) | Device for improving advanced nitrogen and phosphorus removal by step feed and method | |
| CN103880181B (en) | The improvement A of a kind of Continuous Flow short-cut nitrification and denitrification dephosphorization 2/ O technique | |
| CN104030443B (en) | A kind of intensified denitrification and dephosphorization of urban sewage system and treatment process thereof based on fine-grained management | |
| CN102557356B (en) | Process and method for denitrification and phosphorus removal of municipal sewage by half shortcut nitrification and anaerobic ammonium oxidation | |
| CN108298687B (en) | Biological denitrification method for landfill leachate | |
| CN102126811B (en) | Double-anoxic denitrification method and equipment for enhanced denitrification of sewage | |
| CN204058199U (en) | A kind of A2/O+ MBR combined sewage water regenerating unit | |
| CN105217786B (en) | Based on DEAMOX reinforcing improvement subsection water inflow As2The apparatus and method of/O technique biological carbon and phosphorous removals | |
| CN102757160B (en) | Efficient nitrogen and phosphorus removal method for sewage properties-classified treatment in highway service area | |
| CN102491521B (en) | Integrated sewage treatment device of membrane bioreactor and sewage treatment method | |
| CN106745743A (en) | A kind of sewage denitrification dephosphorization system | |
| CN107585863A (en) | A kind of complete mixed and gallery combined-type sewage biochemical processing method | |
| CN109133531A (en) | A kind of process for town sewage treatment being applicable in quasi- IV class water quality standard | |
| CN105502826A (en) | Efficient nitrogen and phosphorus removal waste water treatment process and device | |
| CN110255714A (en) | A kind of low carbon source urban sewage processing system and method | |
| CN102515446B (en) | BCM (Biology Cilium Magnetic) biological sewage treatment system and BCM biological sewage treatment process | |
| CN104211252B (en) | Percolate short-cut nitrification and denitrification denitrification process | |
| CN105621814A (en) | High-quality regenerated recycle water treatment system and method | |
| CN107585974A (en) | A kind of sewage water treatment method based on MBBR techniques | |
| CN203639239U (en) | Multi-point water feeding coupled fixed film reinforced deep denitrification device | |
| CN103030250A (en) | Reinforced-denitrification MBR (membrane bioreactor) sewage treatment method | |
| CN102115297A (en) | Double-reflux denitrification membrane-bioreactor (MBR) process for treating dry acrylic fiber waste water | |
| CN209989143U (en) | Denitrifying phosphorus removal coupling vibration oxygen deficiency MBR device | |
| CN103193321B (en) | Sludge self-circulation dispersed sewage treatment device applicable to directly-discharged water body and method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |