CN205974160U - Nitrogen enrichment nitrosification denitrification device - Google Patents
Nitrogen enrichment nitrosification denitrification device Download PDFInfo
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- CN205974160U CN205974160U CN201620553602.4U CN201620553602U CN205974160U CN 205974160 U CN205974160 U CN 205974160U CN 201620553602 U CN201620553602 U CN 201620553602U CN 205974160 U CN205974160 U CN 205974160U
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- ammonia nitrogen
- nitrosation
- denitrification
- membrane
- reactor
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000012528 membrane Substances 0.000 claims abstract description 71
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 36
- 238000007034 nitrosation reaction Methods 0.000 claims description 70
- 230000009935 nitrosation Effects 0.000 claims description 67
- 239000007788 liquid Substances 0.000 claims description 17
- 238000005341 cation exchange Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 11
- 238000001471 micro-filtration Methods 0.000 claims description 7
- 238000005276 aerator Methods 0.000 claims description 6
- 238000005374 membrane filtration Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 13
- 239000010865 sewage Substances 0.000 abstract description 12
- 239000002351 wastewater Substances 0.000 abstract description 12
- 238000005273 aeration Methods 0.000 abstract description 6
- 239000005416 organic matter Substances 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 238000006396 nitration reaction Methods 0.000 abstract 4
- 206010021143 Hypoxia Diseases 0.000 abstract 1
- 238000000034 method Methods 0.000 description 23
- 230000008569 process Effects 0.000 description 15
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 239000010802 sludge Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 5
- 229910002651 NO3 Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 229910021529 ammonia Inorganic materials 0.000 description 2
- 230000001651 autotrophic effect Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229920005479 Lucite® Polymers 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
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005621 ferroelectricity Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model provides a nitrogen enrichment nitrosification denitrification device belongs to sewage treatment technical field, and the device includes open ammonia nitrogen separator (3), inferior nitration ware (16) and short distance anti - nitration ware (27), ammonia nitrogen separator (3) intake peristaltic pump (1) including the raw water, inlet tube (2), power (4), time relay (5), wire (6), electrode (7), agitator (8), membrane module C (9), manometer (10), ammonia nitrogen pregnant solution play water peristaltic pump (11) and ammonia nitrogen pregnant solution outlet pipe (12), membrane module NH4+ enrichment and separating the organic matter in to waste water, the inferior nitration of good oxygen, the oxygen deficiency short distance denitrification of the organic matter that the combination had before been isolated, go out water. The device has better organic matter removal and the denitrogenation function of going, especially for handling waste water and the high concentration organic matter high -ammonia nitrogen waste water that the carbon source is not enough, can effectively reduce simultaneously the oxygen aeration rate and shorten the anti - nitration time, reduce the working costs.
Description
Technical field
This utility model belongs to technical field of sewage, more particularly, to a kind of nitrogen using combination membrane bio-reaction system
Enrichment nitrosation denitrification denitrogenation device.
Background technology
Low C/N is than the typical water quality characteristic being China's city domestic sewage.Traditional sewage treatment process mainly passes through nitre
Change, Denitrification by mineralized nitrogen be nitrite, nitrite pass through reduction, be then converted to nitrogen, reach denitrogenation
Purpose.And carbon source content is generally not enough in sanitary sewage, conventional processes need to add carbon source to the denitrification stage, cause
Operating cost increases.
For low C/N domestic sewage denitrifying, applicant has invented a kind of " nitrogen enrichment using combination membrane bio-reaction system
And minimizing technology and device " (the patent No.：ZL201310270168.X) find to carry out the ammonia nitrogen after enrichment in running
Nitrification, in nitrifying process, aeration rate is larger, increases energy consumption.If stage control will be nitrified in Nitrification Stage, nitrify rank
Section will reduce by 25% aeration oxygen demand, greatlys save energy consumption.In nitrified effluent with separator, the COD of retention carries out anti-nitre
Change in mechanism and find although nitrogen removal rate is higher than traditional denitrification system clearance, but in water outlet nitrate nitrogen content is still relatively
High.As nitrite nitrogen can saved 40% denitrifying carbon source as denitrifying nitrogen source, thus solve C/N further
In sanitary sewage denitrification process, the not enough problem of carbon source, nitric efficiency is improved further.
Less efficient in order to solve existing low C/N domestic sewage denitrifying, the problems such as energy consumption is larger, carbon source is not enough, this reality
By apparatus for separating ammonia nitrogen, ammonia nitrogen concentration, water outlet pH in water outlet are improved with new, and then make the free ammonia in nitrosation water inlet
(FA) control at higher concentrations, control less aeration to make nitrosation stable operation by gas flowmeter simultaneously.Produce
Nitrous salt dissolving nitrogen acts on, with the COD of apparatus for separating ammonia nitrogen retention, the effect reaching denitrogenation by short-cut denitrification.This device can be effective
Solve the competition of nitrifying process heterotrophism and autotrophic bacteria, and the not enough problem of carbon-nitrogen ratio in denitrification process.
Utility model content
The purpose of this utility model is for the existing process low C/N problem not higher than waste water treatment efficiency, especially for place
The waste water that reason carbon source is not enough provides a kind of processing meanss.
The purpose of this utility model is achieved through the following technical solutions：
A kind of nitrogen enrichment nitrosation denitrification denitrogenation device it is characterised in that：This device includes uncovered apparatus for separating ammonia nitrogen
(3), nitrosation reactor (16) and short-cut denitrification reactor (27)；
Apparatus for separating ammonia nitrogen (3) includes raw water water inlet peristaltic pump (1), water inlet pipe (2), power supply (4), the time relay (5), leads
Line (6), electrode (7), agitator (8), membrane module C (9), pressure gauge (10), ammonia nitrogen pregnant solution water outlet peristaltic pump (11) ammonia nitrogen is rich
Liquid collecting outlet pipe (12)；In apparatus for separating ammonia nitrogen (3), raw water enters in apparatus for separating ammonia nitrogen through water inlet peristaltic pump, membrane module C (9) position
In apparatus for separating ammonia nitrogen；Membrane module C (9) by one of ultrafilter membrane or micro-filtration membrane (31), cation exchange membrane (30) and carries
Gripper shoe (32) composition of guiding gutter (33) and hole (34), cation exchange membrane is located at gripper shoe side, ultrafilter membrane or micro-
One of filter membrane is located at gripper shoe opposite side；Membrane module C outlet (29) and ammonia nitrogen pregnant solution outlet pipe (12), pressure gauge (10) and
Water outlet peristaltic pump (11) is sequentially connected, and the control by the time relay (5)；Electrode (7) is placed in apparatus for separating ammonia nitrogen (3),
It is other that agitator (8) blade is located at membrane module C (9)；The two poles of the earth of electrode (7) are connected with power supply (4) respectively through wire (6), electrode sun
Cation exchange membrane extremely just to membrane module C (9), electrode cathode is just to one of ultrafilter membrane or micro-filtration membrane；
Nitrosation reactor (16) includes nitrosation reactor water inlet pipe (14), nitrosation water inlet peristaltic pump (15), aeration
Device (17), gas flowmeter (18), air pump (19), time control switch (20)；Aerator in nitrosation reactor (16)
(17) it is sequentially connected with gas circuit pipeline, gas flowmeter (18) and air pump (19)；Nitrosation outlet pipe (22) and nitrosation water outlet
Peristaltic pump (24) is connected, and the aerator (17) in nitrosation reactor (16) is located at reactor lower part；
Short-cut denitrification reactor (27) inclusion-apparatus for separating ammonia nitrogen separation Organic substance outlet pipe (21), agitator (8), instead
Nitrification nitrosation liquid water inlet pipe (25), denitrification nitrosation liquid water inlet peristaltic pump (26), denitrification water outlet peristaltic pump (28).
Main-process stream：Raw water enters apparatus for separating ammonia nitrogen bottom through water inlet peristaltic pump；NH4 +Electric field force is utilized in apparatus for separating ammonia nitrogen
Optionally carried out separation and concentration through cation exchange membrane, the ammonia nitrogen pregnant solution being enriched with through ammonia nitrogen enrichment outlet pipe by
Peristaltic pump is pumped into ammonia nitrogen pregnant solution collecting box；In the presence of nitrosation water inlet peristaltic pump, ammonia nitrogen pregnant solution is drawn into nitrous
Change in reactor；Ammonia nitrogen pregnant solution, after nitrosation reaction, is retracted to nitrosation by nitrosation water outlet peristaltic pump and goes out water tank
Collect；Suction short distance is anti-according to a certain percentage with apparatus for separating ammonia nitrogen retention COD by nitrosation reactor water outlet for denitrification peristaltic pump
Carry out denitrification denitrogenation effect in nitrator.
This utility model provide a kind of carry out ammonia nitrogen enrichment using said apparatus, nitrosation, short-cut denitrification are denitrogenated
Method it is characterised in that：It has following process flow steps：
(1) waste water：Waste water, after intake pump supercharging, flows in apparatus for separating ammonia nitrogen through water inlet pipe；
(2) membrane module C is to NH in waste water4 +Enrichment and separating organic matters：In apparatus for separating ammonia nitrogen under electric field force effect, pass through
Influent ammonia nitrogen is enriched with by membrane module cationic exchange membrane, and water outlet ammonia nitrogen concentration improves；By ultrafilter membrane, influent COD is trapped in
In apparatus for separating ammonia nitrogen, COD in the membrane module water outlet of entrance nitrosation reactor is made to reduce；
(3) SBR nitrosation reaction：The ammonia nitrogen pregnant solution collected is introduced in nitrosation reactor through peristaltic pump, NH4 +Exposing
Under the conditions of gas, NO is oxidized to by ammonia oxidation bacteria2 -, form nitrosation liquid and nitrosation liquid be collected；
(4) SBR short-cut denitrification reactor：The COD that the nitrosation liquid of collection is trapped with apparatus for separating ammonia nitrogen is through wriggling
Pump is entered in short-cut denitrification reactor by short-cut denitrification water inlet pipe, carries out denitrification reaction under anoxic conditions；
(5) water outlet：Water outlet after the 4th step is processed can be discharged.
Ammonia nitrogen is enriched with and nitrosation is entered water management under conveniently pH by apparatus for separating ammonia nitrogen, Nitrification Stage due to
During nitrosation is intake by apparatus for separating ammonia nitrogen, COD retains and controls in higher level by nitrosation water inlet FA, can shorten nitrosation
The time starting is it is ensured that nitrosifying stable operation.Denitrification denitrogenation is by NO2 -It is reduced to nitrogenous gas process, it is to avoid from
NO3 -It is reduced to NO2 -Consume the process of carbon source, be effectively reduced carbon source consumption, solve sanitary sewage carbon resource shortage problem.
This utility model compared with prior art, has advantages below and prominent effect：
1st, nitrosation and short-cut denitrification run under respective control environment, are easily controlled reaction condition, and stability is strong, fortune
Line efficiency is higher.
2nd, the COD retention in nitrosation being intake by the ultrafilter membrane in apparatus for separating ammonia nitrogen, eliminates different in nitrosation process
Foster microorganism and the competition of Autotrophic nitrification bacterium, the ammonia nitrogen after apparatus for separating ammonia nitrogen enrichment is gone out with higher pH in apparatus for separating ammonia nitrogen
Water supplies nitrosation reactor, can provide condition for nitrosifying stable operation, improve nitrosation efficiency.
3rd, it is directed to that in sanitary sewage C/N is low, denitrification process carbon source deficiency causes nitrogen removal rate relatively low.COD is retained
As denitrifying carbon source in apparatus for separating ammonia nitrogen, short-cut denitrification is with Nitrosation Products NO2 -As electron acceptor, and with NO3 -
Compare short-cut denitrification as electron acceptor and can save 14.1% carbon source and 55.7% denitrification time.
4th, it is directed to the limitation to low C/N sanitary sewage disposal for the traditional biological denitrification system, by film combination IEM-UF and Asia
Nitrification is combined with short-cut denitrification technique, defines IEM-UF combined films nitrogen enrichment nitrosation short-cut denitrification denitrification system,
This system stability is strong, energy consumption is low, nitrogen removal rate significantly improves.
Brief description
Fig. 1 is this utility model schematic diagram.
Fig. 2 is this utility model combined films component diagram.
Fig. 3 is this utility model gripper shoe schematic diagram
In figure：1- raw water intake pump 2- water inlet pipe 3- apparatus for separating ammonia nitrogen 4- power supply 5- time relay 6- wire 7-
Electrode 8- agitator 9- membrane module C 10- pressure gauge 11- ammonia nitrogen pregnant solution water outlet peristaltic pump 12- ammonia nitrogen collection liquid water outlet
Pipe 13- collecting box 14- nitrosation reactor water inlet pipe 15- nitrosation water inlet peristaltic pump 16- nitrosation reactor 17- exposes
Device of air 18- gas flowmeter 19- air pump 20- time control switch 21- apparatus for separating ammonia nitrogen separation Organic substance outlet pipe 22-
Nitrosation outlet pipe 23- apparatus for separating ammonia nitrogen denitrification water inlet peristaltic pump 24- nitrosation water outlet peristaltic pump 25- denitrification nitrous
Change the water inlet peristaltic pump 27- short-cut denitrification reactor 28- denitrification water outlet of liquid water inlet pipe 26- denitrification nitrosation liquid to wriggle
Pump 29- membrane module C outlet 30- cation exchange membrane 31- ultrafilter membrane (or micro-filtration membrane) 32- gripper shoe 33- guiding gutter
34- hole
Specific embodiment
Below in conjunction with the accompanying drawings 1 and embodiment explain detailedly, to further understand this utility model.
This utility model utilize IEM-UF combination a kind of device of film process sanitary sewage including：Apparatus for separating ammonia nitrogen, Asia
Nitrator, short-cut denitrification reactor.Apparatus for separating ammonia nitrogen is cuboid, and effective volume is 20L.Wherein membrane module C, be
It is made up of cation exchange membrane 30, ultrafilter membrane (or micro-filtration membrane) 31 and the gripper shoe 32 with guiding gutter 33 and hole 34；Sun
Ion exchange membrane 30 and ultrafilter membrane (or micro-filtration membrane) 31 are separately fixed at the two sides of gripper shoe 32, and battery lead plate is netted ferroelectricity
Pole.Short-cut denitrification reactor, nitrosation reactor are made up of cylindrical lucite, and dischargeable capacity is 2.0L.Wherein nitrous
Change reactor is open-top receptacle, and denitrification reactor is hermetic container.
The cation exchange membrane 30 that this utility model is adopted be from Japanese astom provide model CMS sun from
Proton exchange, the aperture that ultrafilter membrane 31 provides for certain producer domestic is 0.1 μm, membrane flux is 18.75-20.83L/m2.h super
Filter membrane.
Carrying out practically step is as follows：
(1) raw water (waste water)：Waste water, after intake pump (1) supercharging, is flowed into for 1-10ml/min with flow through water inlet pipe (2)
In apparatus for separating ammonia nitrogen (3)；
(2) membrane module C is to NH in waste water4 +Enrichment and separating organic matters：It is provided with membrane module C (9) in apparatus for separating ammonia nitrogen (3)
With agitator (8), membrane module C (9) is made up of cation exchange membrane (30) and ultrafilter membrane (31), can be to NH in waste water4 +And have
Machine thing is enriched with respectively and is separated, and stirring makes solution mix homogeneously；Membrane module C outlet (29) is enriched with outlet pipe with ammonia nitrogen
(12), pressure gauge (10) and water outlet peristaltic pump (11) are sequentially connected, and the control by the time relay (5), open water outlet and wriggle
Pump (11), adjustment flow is 1-9ml/min；Meanwhile, agitator (8) is put in apparatus for separating ammonia nitrogen (3) and run, its paddle
Piece is located at membrane module C (9) side, and HRT is 5h-2.5d；The two poles of the earth of electrode (7) are connected with power supply (4) respectively through wire (6), and will
Just to ion exchange membrane (30), negative electrode just to ultrafilter membrane (31), turns on the power (4) to anode, and being adjusted to electric current is 0.05-0.3A,
And keep constant；Water outlet peristaltic pump (11), under the control of the time relay (5), water outlet is intermittent water outlet is that water outlet is wriggled
Pump pumping time is 8 minutes:1-5 minute, water outlet reaches in ammonia nitrogen enrichment liquid case (13) through ammonia nitrogen enrichment outlet pipe (12), when
When pressure gauge (10) instruction numerical value is more than 15kpa, membrane module C (9) need to be carried out；
(3) SBR nitrosation reaction：Ammonia nitrogen is enriched with waste water in liquid case (13) through nitrosation water inlet pipe (14) by nitrous
Change water inlet peristaltic pump (15) to be introduced in nitrosation reactor (16).Nitrosation inlet flow-patterm scope is 7.5-8.2, nitrosation reactor
Middle activated sludge MLSS is 3000-3500mg/L, and aerator (17) is arranged on reactor bottom, by gas flowmeter (18),
Control DO in 0.4-1.5mg/L.Nitrosation reactor is made to adopt SBR mode to run by time controller (20), one of
Water inlet 0.5h, aerated reaction 4-8h in cycle, stands 0.5-1h, draining 0.5h.NH4 +In nitrosation activated sludge and aeration condition
Under, form nitrosation liquid；The denitrification process that nitrosation liquid was collected as next stage provides nitrogen source.
(4) SBR short-cut denitrification reaction：Nitrosation liquid is divided through peristaltic pump (23), ammonia nitrogen by denitrification water inlet pipe (25)
Send in denitrification reactor by outlet pipe (21) through peristaltic pump (26) from the Organic substance that device is isolated, the two flow is pressed 1-3
Flow-rate ratio than 1 enters in short-cut denitrification reactor and carries out denitrification, and short-cut denitrification inlet flow-patterm scope is 7.0-7.8.Instead
In nitrator, activated sludge MLSS is 3000-3500mg/L, so that denitrification is transported in SBR mode by time controller (20)
OK, water inlet 0.5h wherein in short-cut denitrification reactor, reacts 2-4h, stands 0.5-1h, draining 0.5h.Reactor is that closing lacks
Oxygen environment, carries out denitrification under the stirring of agitator (8).And then complete organic matter removal and denitrogenation.
(5) water outlet：Process water outlet through the 4th step, by peristaltic pump by Chinese effluent.
Result：
When raw water is for water distribution, its main water quality index meansigma methods is：NH4 +- N=60-80mg/L, COD=180-
200mg/L；Operating condition is：The peristaltic pump pumping time controlling membrane module C water outlet is 8 minutes:5 minutes, flow of inlet water
For 7.5mL/min, membrane module C water flow is 6mL/min, and membrane module C electric current is 0.2A, nitrosation reactor activated sludge
MLSS=3200mg/L, reacts 4h.Denitrification reactor activated sludge MLSS=3000mg/L, nitrosation water outlet and ammonia nitrogen are divided
From device water outlet according to flow 1：1 ratio enters in denitrification reactor, reacts 4h.Water outlet leading indicator meansigma methodss can reach：
COD=33mg/L, NH4 +- N=36.3mg/L, NO3 -- N=0.32mg/L, NO2 -- N=1.45mg/L；Clearance meansigma methodss are respectively
For：COD=88.9%, NH4 +- N=39.5%, TN=36.5%.
The peristaltic pump pumping time controlling membrane module C water outlet is 8 minutes:5 minutes, flow of inlet water was 7.5mL/min,
Membrane module C water flow is 6mL/min, and membrane module C electric current is 0.2A, nitrosation reactor activated sludge MLSS=
3000mg/L, reacts 6h.Denitrification reactor activated sludge MLSS=3200mg/L, nitrosation water outlet and apparatus for separating ammonia nitrogen are gone out
Water is according to flow 1：1 ratio enters in denitrification reactor, reacts 4h.Water outlet leading indicator meansigma methodss can reach：COD=
30.2mg/L, NH4 +- N=26.4mg/L, NO3 -- N=0.28mg/L, NO2 -- N=1.45mg/L；Clearance meansigma methodss are respectively：
COD=89.9%, NH4 +- N=42.1%, TN=46.2%.
Claims (1)
1. a kind of nitrogen enrichment nitrosation denitrification denitrogenation device it is characterised in that：This device includes uncovered apparatus for separating ammonia nitrogen
(3), nitrosation reactor (16) and short-cut denitrification reactor (27)；
Apparatus for separating ammonia nitrogen (3) includes raw water water inlet peristaltic pump (1), water inlet pipe (2), power supply (4), the time relay (5), wire
(6), electrode (7), agitator (8), membrane module C (9), pressure gauge (10), ammonia nitrogen pregnant solution water outlet peristaltic pump (11) and ammonia nitrogen are rich
Liquid collecting outlet pipe (12)；In apparatus for separating ammonia nitrogen (3), raw water enters in apparatus for separating ammonia nitrogen through water inlet peristaltic pump, membrane module C (9) position
In apparatus for separating ammonia nitrogen；Membrane module C (9) by one of ultrafilter membrane or micro-filtration membrane (31), cation exchange membrane (30) and carries
Gripper shoe (32) composition of guiding gutter (33) and hole (34), cation exchange membrane is located at gripper shoe side, ultrafilter membrane or micro-
One of filter membrane is located at gripper shoe opposite side；Membrane module C outlet (29) and ammonia nitrogen pregnant solution outlet pipe (12), pressure gauge (10) and
Water outlet peristaltic pump (11) is sequentially connected, and the control by the time relay (5)；Electrode (7) is placed in apparatus for separating ammonia nitrogen (3),
It is other that agitator (8) blade is located at membrane module C (9)；The two poles of the earth of electrode (7) are connected with power supply (4) respectively through wire (6), electrode sun
Cation exchange membrane extremely just to membrane module C (9), electrode cathode is just to one of ultrafilter membrane or micro-filtration membrane；
Nitrosation reactor (16) includes nitrosation reactor water inlet pipe (14), nitrosation water inlet peristaltic pump (15), aerator
(17), gas flowmeter (18), air pump (19), time control switch (20)；Aerator (17) in nitrosation reactor (16)
It is sequentially connected with gas circuit pipeline, gas flowmeter (18) and air pump (19)；Nitrosation outlet pipe (22) is wriggled with nitrosation water outlet
Pump (24) is connected, and the aerator (17) in nitrosation reactor (16) is located at reactor lower part；
Short-cut denitrification reactor (27) inclusion-apparatus for separating ammonia nitrogen separation Organic substance outlet pipe (21), agitator (8), denitrification
Nitrosation liquid water inlet pipe (25), denitrification nitrosation liquid water inlet peristaltic pump (26), denitrification water outlet peristaltic pump (28).
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| CN201620553602.4U CN205974160U (en) | 2016-06-09 | 2016-06-09 | Nitrogen enrichment nitrosification denitrification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167330A (en) * | 2016-06-09 | 2016-11-30 | 北京工业大学 | A kind of IEM UF nitrogen enrichment nitrosation denitrification method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106167330A (en) * | 2016-06-09 | 2016-11-30 | 北京工业大学 | A kind of IEM UF nitrogen enrichment nitrosation denitrification method and device |
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