CN106865772A - A kind of sewage disposal device and method based on carbon nitrogen energy recovery - Google Patents
A kind of sewage disposal device and method based on carbon nitrogen energy recovery Download PDFInfo
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- CN106865772A CN106865772A CN201710225413.3A CN201710225413A CN106865772A CN 106865772 A CN106865772 A CN 106865772A CN 201710225413 A CN201710225413 A CN 201710225413A CN 106865772 A CN106865772 A CN 106865772A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
Abstract
A kind of sewage disposal device and method based on carbon nitrogen energy recovery, the equipment includes intake pump, anaerobic reactor, gas gathering system, nitrosation reactor, reflux pump and aeration pump, treatment sewage first carries out anaerobic reaction and methane phase in the bottom of anaerobic reactor, sewage after methane phase carries out anti-nitration reaction on the top of anaerobic reactor, by the nitrite that is flowed back from nitrosation reactor as electron acceptor, remaining organic carbon source is used as electron donor after methane phase, intensified anti-nitrated reaction and produce nitrous oxide；The methane and nitrous oxide that anaerobic reactor is produced are reclaimed by gas collector；Water outlet of the anaerobic reactor based on ammonia nitrogen flows into nitrosation reactor, by the mineralized nitrogen in water is nitrite in nitrosation reactor, and the water part containing nitrite is back in anaerobic reactor.The present invention has sewage energy and the emerging pollutant double effectses of removal.
Description
Technical field
The present invention relates to sewage disposal, more particularly to a kind of sewage disposal device and side based on carbon nitrogen energy recovery
Method.
Background technology
Sewage disposal is the important technology approach for ensureing residents ' health and ecological environment security, is that transmission control etc. is done
Significant contribution is gone out, so being cited as one of technology important over 100 years.Sewage disposal according to process object gradually consider carbon source,
The pollutant removals such as nitrogen, phosphorus, corresponding technology development can be divided into Sewage Biological Treatment, sewage nutrient removal, sewage nutrients
Several stages such as reinforcing removal and Limit of Technology (LOT) technology.Pollutant removal is mainly nutrients at this stage
Reinforcing removal, and the countries and regions such as U.S. begin to focus on and put into practice LOT.Additionally, when a century of activated sludge in 2014, generation
Various countries of boundary expert begins to focus on and inquires into the future developing trend of sewage treatment process.Basic Consensus include, tradition are polluted
Thing such as organic matter and nitrogen phosphorus etc., are primarily upon its utilization as energy and resources；And to emerging pollutant and its ecological risk and toxicity
Control, then be the following perpetual object in pollutant catabolic gene field.
In terms of waste water control theory is gradually changed into energy resources recovery by traditional pollutant removal, for resource energy
Source theory, different experts and scholars propose different practice technology approach respectively.Significant process includes that dirty Organic substance in water is straight
Connect anaerobism energy or be first converted into solid organic matters, then carry out anaerobic fermentation and realize energy；Additionally, for nitrogen phosphorus
Recycling mainly then is carried out to it, including reclaiming as fertilizer etc..
Emerging pollutant and its toxicology are the emphasis of following sewage disposal concern, especially in ecological safety guarantee and its shadow
The aspects such as sound receive much concern.Numerous scholars are to the emerging dirt of personal medical drugses and skin care item (PPCPs) etc. in sewage treatment plant
The removal effect and cutting mechanisms for contaminating thing have carried out systematic research.Carballa et al. (2004) are to PPCPs and steroids
Material (EDCs) research of removal behavior in sewage treatment plant shows that the biodegradation of activated sludge is to PPCPs's and EDCs
Very important effect is played in removal.Due to the complexity of emerging pollutant biodegradation process, its catabolite is at sewage
Degradation pathway and its eco-toxicity in reason also begin to attract attention.Therefore, following sewage disposal system needs to consider emerging dirt
The Best available control technology of dye thing and its toxicity.
The content of the invention
It is a primary object of the present invention to overcome the deficiencies in the prior art, there is provided a kind of sewage based on carbon nitrogen energy recovery
Processing equipment and method.
To achieve the above object, the present invention uses following technical scheme：
A kind of sewage disposal device based on carbon nitrogen energy recovery, including intake pump, anaerobic reactor, gas collection system
System, nitrosation reactor, reflux pump and aeration pump, the intake pump connect the water inlet of the anaerobic reactor, described to detest
The delivery port of oxygen reactor connects the water inlet of the nitrosation reactor, and the gas outlet of the anaerobic reactor connects the gas
Body collection system, the recycling effluent mouthful of the nitrosation reactor connects the backflow of the anaerobic reactor by the reflux pump
Be sent to oxygen in the nitrosation reactor by water inlet, the aeration pump；Treatment sewage is first in the anaerobic reactor
Bottom carries out anaerobic reaction and methane phase, and the sewage after methane phase carries out anti-nitration reaction on the top of the anaerobic reactor,
By the nitrite that is flowed back from the nitrosation reactor as electron acceptor, remaining organic carbon source is used as electronics after methane phase
Donor, intensified anti-nitrated reaction and produce nitrous oxide；The methane and nitrous oxide that the anaerobic reactor is produced pass through the gas
Body collection device is reclaimed；Water outlet of the anaerobic reactor based on ammonia nitrogen flows into the nitrosation reactor, in the nitrous
It is nitrite to change the mineralized nitrogen in water in reactor, and the water part containing nitrite is back to the anaerobic reaction
In device, the anti-nitration reaction in the anaerobic reactor is participated in.
Further：
Conductive material is provided with the anaerobic reactor, as conductive biofilm carrier.
The conductive material includes absorbent charcoal material.
Conductive material is provided with the nitrosation reactor, as conductive biofilm carrier.
The conductive material includes absorbent charcoal material.
The top of the anaerobic reactor connects the bottom of the anaerobic reactor by gas backstreaming pump, and the gas is returned
Stream pump is used for the gas backstreaming on the anaerobic reactor top to the bottom of the anaerobic reactor, by the anaerobic reaction
The liquid phase of device, Gas Energy Source component in the anaerobic reactor liquid phase is gone out with stripping.
Division board is set in methane phase area in the anaerobic reactor and between producing nitrous oxide area, and the division board is separated
The filler in methane phase area and product nitrous oxide area is with to microbial population of the not same district reinforcing with difference in functionality.
Connected by U-tube between the water inlet of the delivery port of the anaerobic reactor and the nitrosation reactor.
Agitator is provided with the nitrosation reactor.
A kind of sewage water treatment method using described sewage disposal device, including procedure below：Treatment sewage is sent
Enter the anaerobic reactor, treatment sewage is first carried out anaerobic reaction and methane phase in the bottom of the anaerobic reactor, produce
Sewage after methane carries out anti-nitration reaction on the top of the anaerobic reactor, by the Asia flowed back from the nitrosation reactor
Nitrate as electron acceptor, after methane phase remaining organic carbon source as electron donor, intensified anti-nitrated reaction and produce oxidation
Sub- nitrogen；The methane and nitrous oxide that the anaerobic reactor is produced are reclaimed by the gas collector；The anaerobic reaction
Water outlet of the device based on ammonia nitrogen flows into the nitrosation reactor, is by the mineralized nitrogen in water in the nitrosation reactor
Nitrite, the water part containing nitrite is back in the anaerobic reactor, in the participation anaerobic reactor
Anti-nitration reaction.
Further：
The biofilm carrier of conductive energy is added in the anaerobic reactor, reinforced anaerobic course of reaction electronics is passed
Efficiency is passed, and promotes the treatment effeciency of anti-nitration reaction.
Beneficial effects of the present invention：
The present invention provides sewage disposal device and sewage water treatment method based on carbon nitrogen energy recovery, for sewage disposal money
The demand of source energy, realizes the sewage treatment technique based on carbon nitrogen energy, improves sewage treating efficiency and place
Reason quality.In the present invention, sewage is used for denitrification product nitrous oxide after methane phase；Produce nitrous oxide water outlet and use nitrosation technology
Production nitrite, and it is back to the denitrification stage；In a preferred embodiment, using conductive material as conductive
Biofilm carrier, anaerobic methane production and denitrification produce nitrous oxide in reinforced anaerobic reactor, and couple nitrosation reactor
The carbon nitrogen energy recovery sewage disposal of nitrosation process, integrally realizes carbon nitrogen energy recovery sewage disposal, in particular for highly concentrated
Degree organic carbon source and high ammonia-nitrogen wastewater are in hgher efficiency.The present invention has the function of the reinforcing emerging pollutant of removal simultaneously, is a kind of
Meet the sustainable development requirement that sewage disposal and energy resources are reclaimed.
The specific advantage of the embodiment of the present invention has：(1) conductive material enhanced sewage Anaerobic Treatment efficiency is used, because anaerobism
Treatment is related to the electron transmission between different microorganisms population including the process such as hydrolysis acidification and methane phase, when addition conduction material
After material, it is not only able to promote the growth of biomembrane, is also beneficial to the electron transmission between enhancement microbiological, improves Anaerobic Treatment effect
Rate.(2) for the complete water quality of anaerobism, using phegma of the backflow containing nitrite, in reactor top enhanced sewage denitrification
Produce nitrous oxide.In addition, being conducive to stripping to reactor bottom using gas backstreaming pump reflux upper gas to anaerobic reactor
Go out methane and nitrous oxide that whole reactor is produced, both of which is bioenergy.It is achieved in carbon nitrogen energy mesh in sewage
's.(3) in anaerobic reactor, using conductive material mode is added, the removal of some emerging pollutants can be strengthened, makes treatment dirty
Water has more ecological security.It is (4) main using control dissolved oxygen or other operational modes in aerobic nitrosated reactor,
Realize nitrosation purpose.Meanwhile, nitrifying process can also strengthen the removal of emerging pollutant.(5) in nitrosation reactor, also adopt
Biomembrane mode is used, is conducive to improving the biomass of sludge quantity, especially nitrifier, reinforcement process disposal ability.Therefore, this hair
It is bright with sewage energy and the emerging pollutant double effectses of removal.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of the present invention；
Fig. 2 a and Fig. 2 b are respectively present example 1 and carry out the removal situation that activity experiment determines COD (COD)
And methane phase (CH4) situation schematic diagram；
Fig. 3 a to Fig. 3 d be respectively present example 2 using primidone mysoline PRM, carbamazepine CBM, Crotamiton CRT and
The measurement result schematic diagram that sulfamethoxazole SMX is tested；
Fig. 4 carries out dissolubility N for present example 32O on-line determination result schematic diagrams；
Fig. 5 a and Fig. 5 b are that present example 4 tames the change signal with nitrogen concentration in periodic process for a long time in reactor
Figure.
Specific embodiment
Embodiments of the present invention are elaborated below.It is emphasized that what the description below was merely exemplary,
Rather than in order to limit the scope of the present invention and its application.
Refering to Fig. 1, in one embodiment, a kind of sewage disposal device based on carbon nitrogen energy recovery, including intake pump
(not shown), anaerobic reactor 1, gas gathering system (not shown), nitrosation reactor 2, reflux pump (not shown) and exposure
Air pump, the intake pump connects the water inlet 6 of the anaerobic reactor 1, and the delivery port 8 of the anaerobic reactor 1 connects described
The water inlet 9 of nitrosation reactor 2, the gas outlet 3 of the anaerobic reactor 1 connects the gas gathering system, the nitrous
The recycling effluent mouthful 10 for changing reactor 2 connects the backflow water inlet 11 of the anaerobic reactor 1, the exposure by the reflux pump
By pipeline 13 be sent in the nitrosation reactor 2 oxygen by air pump；Treatment sewage is first at the bottom of the anaerobic reactor 1
Portion carries out anaerobic reaction and methane phase, and the sewage after methane phase carries out anti-nitration reaction on the top of the anaerobic reactor 1, by
, used as electron acceptor, remaining organic carbon source is used as electronics after methane phase for nitrite from the backflow of the nitrosation reactor 2
Donor, intensified anti-nitrated reaction and produce nitrous oxide；The methane and nitrous oxide that the anaerobic reactor 1 is produced pass through the gas
Body collection device is reclaimed；Water outlet of the anaerobic reactor 1 based on ammonia nitrogen flows into the nitrosation reactor 2, in the Asia
By the mineralized nitrogen in water it is nitrite in nitrator 2, the water part containing nitrite is back to the anaerobism
In reactor 1, the anti-nitration reaction in the anaerobic reactor 1 is participated in.
In a preferred embodiment, conductive material 5 is provided with the anaerobic reactor 1, as conductive
Biofilm carrier.
In a more preferred embodiment, the conductive material 5 includes absorbent charcoal material.
In a preferred embodiment, conductive material is provided with the nitrosation reactor 2, as conductive
Biofilm carrier.
In a more preferred embodiment, the conductive material includes absorbent charcoal material.
In a preferred embodiment, the top of the anaerobic reactor is detested by described in the connection (not shown) of gas backstreaming pump
The bottom of oxygen reactor, the gas backstreaming pump is used for the gas backstreaming on the anaerobic reactor top to the anaerobic reaction
The bottom of device, by the liquid phase of the anaerobic reactor, is conducive to stripping to go out Gas Energy Source group in the anaerobic reactor liquid phase
Point.
In a preferred embodiment, set in methane phase area in the anaerobic reactor 1 and between producing nitrous oxide area every
From plate 4, the division board 4 separates the filler in methane phase area and product nitrous oxide area has difference in functionality with to the reinforcing of not same district
Microbial population.
In a preferred embodiment, the water inlet of the delivery port of the anaerobic reactor 1 and the nitrosation reactor 2 it
Between by U-tube connect.Using U-tube rather than straight tube, water seal effect can be played to the gas on the top of anaerobic reactor 1,
The gas for preventing anaerobic reactor 1 from producing flows to nitrosation reactor 2 with water outlet.
Agitator 12 is provided with the nitrosation reactor.
Refering to Fig. 1, in another embodiment, a kind of sewage water treatment method using described sewage disposal device, bag
Include procedure below：Treatment sewage is sent into the anaerobic reactor 1, makes treatment sewage first in the anaerobic reactor 1
Bottom carries out anaerobic reaction and methane phase, and the sewage after methane phase carries out anti-nitration reaction on the top of the anaerobic reactor 1,
By the nitrite that is flowed back from the nitrosation reactor 2 as electron acceptor, remaining organic carbon source is used as electricity after methane phase
Sub- donor, intensified anti-nitrated reaction and produce nitrous oxide；The methane and nitrous oxide that the anaerobic reactor 1 is produced pass through described
Gas collector is reclaimed；Water outlet of the anaerobic reactor 1 based on ammonia nitrogen flows into the nitrosation reactor 2, described
By the mineralized nitrogen in water it is nitrite in nitrosation reactor 2, the water part containing nitrite is back to described detests
In oxygen reactor 1, the anti-nitration reaction in the anaerobic reactor 1 is participated in.
In a preferred embodiment, the biofilm carrier of conductive energy is added in the anaerobic reactor 1, is strengthened
Anaerobic reaction process electron transmission efficiency, and promote the treatment effeciency of anti-nitration reaction.
A specific embodiment of the invention is as shown in figure 1, the equipment mainly includes anaerobic reactor 1, nitrosation reaction
Device 2, intake pump, reflux pump, aeration pump, gas gathering system etc..
In sewage disposal process, required treatment sewage carries out anaerobic methane production in anaerobic reactor bottom first, effectively
Using organic carbon source in sewage；After methane phase, sewage carries out denitrification on anaerobic reactor top, is made by the nitrite for flowing back
It is electron acceptor, used as electron donor, intensified anti-nitrated product is aoxidized residue organic carbon source (mostly macromolecular substances) after methane phase
Sub- nitrogen.The methane and nitrous oxide gas that anaerobic reactor is produced then are recycled by upper gas collection device.Detest
Oxygen reactor water outlet flows into nitrosation reactor, because now sewage is mainly based on ammonia nitrogen, in nitrosation reactor
Conversion ammonia nitrogen is nitrite.It is enhanced sewage treatment effeciency, the biomembrane of conductive energy is added in anaerobic reactor
Carrier, such as activated carbon, reinforced anaerobic course of reaction electron transmission efficiency.Similar, can also promote denitrification treatment effeciency.
Methane phase area and product nitrous oxide region middle setting division board, separate filler, microbial population of the reinforcing with difference in functionality.
In nitrosation reactor, biomembrane mode is also adopted by, is conducive to improving the biomass of sludge quantity, especially nitrifier, reinforcing
PROCESS FOR TREATMENT ability.
Example 1
It is the sbr reactor device culture anaerobe of 2.3L to use 2 effective volumes.Two sbr reactor device cycles of operation
12h is, running temperature is 35 DEG C, and daily spoil disposal about 66mL, control sludge age (SRT) is 30d.The SBR cycles of operation include 11h
Anaerobism stirring (including 6min water inlet), 50min is staticly settled and 10min water outlets/idle.The water inlet of each cycle is 1L, and water outlet is
1L, hydraulic detention time (HRT) is 24h.Reactor is intake and draining is opened and closed by Timer Controlling peristaltic pump and realized.Reactor
Top is provided with venthole, and venthole connection drainage arrangement can determine aerogenesis volume.Two reactors are respectively blank group reactor
With test group reactor, 10g/L Fe are added wherein in test group reactor3O4As conductive material.To ensure Fe3O4Concentration is protected
Hold and stablize relatively, while daily spoil disposal, supplement the Fe of equivalent3O4Powder.Reactor is intake with peptone as carbon source, water inlet
COD be 2000mg/L, other enter water component including 480mg/L NH4Cl, 100mg/L CaCl2, 200mg/L MgCl2,
120mg/L Na2HPO4, 200mg/L KHCO3And 1mL/L trace elements.
After stabilization is tamed, activity test is carried out in two reactors, measure reactor is within a cycle of operation
Active situation.Water sampling and gas sample determine the removal situation and methane phase (CH of COD (COD) at regular intervals4)
Situation.Acquired results are as shown in figures 2 a and 2b.
According to fitting result, the maximum COD degradation speed of blank group and test group is respectively 115.9 and 183.96mg/
(L·h)(P<0.05), COD clearances are respectively 74.1 and 86.8%, therefore the maximum COD degradation speed of test group improves
58.7%, COD clearance improve 17.1%.The peak methane-producing rate of blank group and test group is respectively 34.5 Hes
61.6mL/(L·h)(P<0.05), the peak methane-producing rate of test group improves 78.5%.
Example 2
Take domestication stabilized sludge 250mL to be mixed from water distribution with 250mL, autogamy water component is:480mg/L NH4Cl,
100mg/L CaCl2,200mg/L MgCl2,120mg/L Na2HPO4,200mg/L KHCO3And 1mL/L trace element solutions
(1g/L FeCl2·4H2O,100mg/L CoCl2·6H2O,200mg/L NiCl2·6H2O,100mg/L MnCl2·4H2O,
100mg/L NaMoO4·2H2O,100mg/L H3BO3,100mg/L NaWO4·2H2O and 100mg/L NaSeO3).Will be mixed
Liquid is closed to pour into effective volume 500mL mouth bottle, be separately added into sufficient corresponding carbon source (starch, peptone and amyloid proteins peptone,
2000mg/L COD) with pharmaceuticals and personal-care supplies (including primidone mysoline PRM, carbamazepine CBM, Crotamiton CRT and
Sulfamethoxazole SMX, 10mg/L).Add corresponding conductive carrier (ferroso-ferric oxide and anthraquinone -2,6- sodium sulfonates) simultaneously.With
Magnetic stirring apparatus is stirred, and starts experiment.
The experiment reaction time is 10 days, and water sample is with the sampling time of gas sample:0,0.5,1,1.5,2,3,6, and 10 days.Survey
Determine organic acid concentration and COD concentration in methane-generated quantity, the water in course of reaction.Water sample is concentrated with SPE after filtering,
It is measured to remaining drug concentration in water using liquid chromatography mass spectrometric.Acquired results are as shown in Fig. 3 a to 3d.
By calculating gained, with amyloid proteins peptone as mixed carbon source, anthraquinone -2 are added, 6- sodium sulfonates are used as electron transmission
After fortification substance, the degradation half life of sulfamethoxazole is 0.46 day.And single peptone is used as carbon source, without electronics
During transmission fortification substance, the degradation half life of sulfamethoxazole is 4.53 days.
Example 3
Using a height of 30cm, a diameter of 10cm, dischargeable capacity is carried out for the cylindrical lucite sbr reactor device of 2000mL
Domestication denitrifying bacterium.The sbr reactor device cycle of operation is 4h, and each cycle includes：10min is intake, 160min anoxia stirrings,
20min is aerobic, and 45min standing sedimentations and 15min water outlets/idle.The water inlet of each cycle is 1L, and water outlet is 1L, during hydraulic retention
Between (HRT) be 8h.Daily in the aerobic end spoil disposal 200mL of specific period, control sludge age (SRT) is 10d.Aerobic reaction rank
Section is aerated using micro-hole aerator, and reactor water inlet and draining are opened and closed by Timer Controlling peristaltic pump and realized, reactor
Tamed for a long time under the conditions of 26 DEG C.The water-inlet carbon source of reactor is glucose, and its inlet COD concentration is 800mg/L；Water inlet
NaNO3It is 1214mg/L, correspondence water inlet NO3- N concentration is 200mg/L.Therefore reactor influent COD/N is 4 under long-term acclimation conditions.
Other enter water component：NaHCO3It is 200mg/L, NH4Cl is 250mg/L, Na2HPO4It is 25mg/L, CaCl2It is 45mg/L,
MgSO4It is 100mg/L, yeast extract is 15mg/L, trace element is 0.2mL/L.
After stabilization is tamed, denitrification capability and N that periodic test probes into the sbr reactor device are simulated2O produces feelings
Condition.Before on-test, 500mL activated sludge is taken for testing from the aerobic end of reactor.Air-tightness is used in process of the test
Good 500mL mouth bottle as reactor, the perforate on the rubber stopper of silk mouthful bottle, and the good silicone tube of connection sealing and
Microelectrode, for sampling.Take and tested with identical condition during domestication for a long time, i.e., water-inlet carbon source is grape
Sugar, nitrogen source is NaNO3, initial C/N ratios are 4.Silk mouthful bottle is placed in water-bath in course of reaction controls temperature for 25 DEG C, and use magnetic
Power agitator is stirred is thoroughly mixed solution.Reaction is carried out 160 minutes, every 10 minutes water samplings and gas sample, and simultaneously
Carry out dissolubility N2The on-line determination of O.Acquired results are as shown in Figure 4.
By calculating, with glucose as carbon source, NO3When-N is tested for electron acceptor carries out denitrification, C/N ratios are 4
Under conditions of, denitrification rate is -6.04mg N/ (g MLVSSh), maximum N2O-N yields are 39.98mg/L, N2O's turns
Rate is 56%.
Example 4
Using 50cm high, diameter 15cm, dischargeable capacity is the cylindrical plexiglass box of 6L as reactor.Reactor
Run under the conditions of 30 DEG C, it is the SBR operational modes of 4h to use the cycle, and each SBR cycle of operation intakes including 10min,
180min is aerobic, and 45min is staticly settled and 15min water outlets and idle.The water inlet of each cycle is 3L, and water outlet is 3L, hydraulic retention
Time is 8h.The aerobic reaction stage, by micropore aerator aeration, controls aeration rate for 4L/min by flowmeter, and reactor enters
Water and draining are realized by Timer Controlling peristaltic pump.The seed sludge of reactor is the work in western beautiful regeneration water factory backwash pond
Property sludge.Reactor water inlet is laboratory from water distribution, and being divided into five stages is tamed, and water inlet NH4Cl is respectively 383mg/L,
765mg/L, 1150mg/L, 2300mg/L and 3060mg/L, water inlet NaHCO3 are respectively 1800mg/L, 3600mg/L, 5400mg/
L, 10800mg/L and 14000mg/L；It is identical that other enter water component, Na2HPO4It is 50mg/L, CaCl2It is 70mg/L, MgSO4For
400mg/L, micro- 0.4mL/L.
Reactor domestication for a long time is with the change of nitrogen concentration in periodic process as shown in figure 5a and 5b.The last stage stabilization
Afterwards, water outlet NH4- N mean concentrations are less than 5mg/L, water outlet NO3The mean concentration of-N is 5.99mg/L.Stabilization sub stage, NH of intaking4-N
Load is 2.4g N/ (Ld), NH4The clearance of-N reaches 99.8%, nitrosoation rate (NO2-N/(NO2-N+NO3- N)) be
99.3%, realize the nitrosation of stabilization.During mechanical periodicity, NH4It is NO that-N is gradated2- N, fraction is converted into again
NO3-N.DO is maintained at 1.5mg/L when cycle starts, and shows under conditions of matrix abundance, and microorganism keeps maximum matrix to utilize
Rate, basicity consumption rate is more than NaHCO3The basicity of supplement, therefore pH is gradually reduced；As NH in reactor4- N concentration is less than 20mg/L
When, due to matrix limitation, coefficient of oxygen utilization reduction, basicity consumption rate is also decreased, therefore DO and pH is raised.
Above content is to combine specific/preferred embodiment further description made for the present invention, it is impossible to recognized
Fixed specific implementation of the invention is confined to these explanations.For general technical staff of the technical field of the invention,
Without departing from the inventive concept of the premise, its implementation method that can also have been described to these makes some replacements or modification,
And these are substituted or variant should all be considered as belonging to protection scope of the present invention.
Claims (10)
1. a kind of sewage disposal device based on carbon nitrogen energy recovery, it is characterised in that including intake pump, anaerobic reactor, gas
Body collection system, nitrosation reactor, reflux pump and aeration pump, the intake pump connect the water inlet of the anaerobic reactor
Mouthful, the delivery port of the anaerobic reactor connects the water inlet of the nitrosation reactor, the gas outlet of the anaerobic reactor
The gas gathering system is connected, the recycling effluent mouthful of the nitrosation reactor is anti-by the reflux pump connection anaerobism
Answer the backflow water inlet of device, the aeration pump that oxygen is sent in the nitrosation reactor；Treatment sewage is first detested described
The bottom of oxygen reactor carries out anaerobic reaction and methane phase, and the sewage after methane phase is carried out instead on the top of the anaerobic reactor
Nitration reaction, by the nitrite that is flowed back from the nitrosation reactor as electron acceptor, remaining organic carbon after methane phase
Source as electron donor, intensified anti-nitrated reaction and produce nitrous oxide；Methane and nitrous oxide that the anaerobic reactor is produced
Reclaimed by the gas collector；Water outlet of the anaerobic reactor based on ammonia nitrogen flows into the nitrosation reactor,
By the mineralized nitrogen in water it is nitrite in the nitrosation reactor, the water part containing nitrite is back to institute
State in anaerobic reactor, participate in the anti-nitration reaction in the anaerobic reactor.
2. sewage disposal device as claimed in claim 1, it is characterised in that be provided with conduction material in the anaerobic reactor
Material, as conductive biofilm carrier.
3. sewage disposal device as claimed in claim 2, it is characterised in that the conductive material includes absorbent charcoal material.
4. the sewage disposal device as described in any one of claims 1 to 3, it is characterised in that in the nitrosation reactor
Conductive material is provided with, as conductive biofilm carrier.
5. the sewage disposal device as described in any one of Claims 1-4, it is characterised in that the top of the anaerobic reactor
The bottom of the anaerobic reactor is connected by gas backstreaming pump, the gas backstreaming pump is used for the anaerobic reactor top
Gas backstreaming to the bottom of the anaerobic reactor, by the liquid phase of the anaerobic reactor, reactor liquid phase is gone out with stripping
Middle Gas Energy Source component.
6. the sewage disposal device as described in any one of claim 1 to 5, it is characterised in that produced in the anaerobic reactor
Division board is set between methane area and product nitrous oxide area, and the division board separates methane phase area and produces the filler in nitrous oxide area
With to microbial population of the not same district reinforcing with difference in functionality.
7. the sewage disposal device as described in any one of claim 1 to 6, it is characterised in that the water outlet of the anaerobic reactor
Connected by U-tube between mouth and the water inlet of the nitrosation reactor.
8. the sewage disposal device as described in any one of claim 1 to 7, it is characterised in that set in the nitrosation reactor
It is equipped with agitator.
9. a kind of sewage water treatment method of sewage disposal device using as described in any one of claim 1 to 8, its feature exists
In, including procedure below：Treatment sewage is sent into the anaerobic reactor, makes treatment sewage first in the anaerobic reactor
Bottom carry out anaerobic reaction and methane phase, it is anti-that the sewage after methane phase carries out denitrification on the top of the anaerobic reactor
Should, by the nitrite that is flowed back from the nitrosation reactor as electron acceptor, remaining organic carbon source conduct after methane phase
Electron donor, intensified anti-nitrated reaction and produce nitrous oxide；The methane and nitrous oxide that the anaerobic reactor is produced pass through institute
State gas collector recovery；Water outlet of the anaerobic reactor based on ammonia nitrogen flows into the nitrosation reactor, described
By the mineralized nitrogen in water it is nitrite in nitrosation reactor, the water part containing nitrite is back to the anaerobism
In reactor, the anti-nitration reaction in the anaerobic reactor is participated in.
10. sewage water treatment method as claimed in claim 9, it is characterised in that added in the anaerobic reactor with leading
The biofilm carrier of electrical property, reinforced anaerobic course of reaction electron transmission efficiency, and promote the treatment effeciency of anti-nitration reaction.
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| CN201710225413.3A CN106865772A (en) | 2017-04-07 | 2017-04-07 | A kind of sewage disposal device and method based on carbon nitrogen energy recovery |
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| CN108033555A (en) * | 2017-11-24 | 2018-05-15 | 北京林业大学 | A kind of method of the quick anaerobic biological treatment for starting garbage burning factory Leachate site |
| CN108373201A (en) * | 2018-04-28 | 2018-08-07 | 杭州师范大学 | A kind of processing method and dedicated unit of low ratio of carbon to ammonium ammonia nitrogen waste water |
| CN111470626A (en) * | 2020-06-05 | 2020-07-31 | 中国石油化工股份有限公司 | Hydrolysis acidification sewage treatment method and reaction device |
| CN112321112A (en) * | 2020-10-21 | 2021-02-05 | 西安建筑科技大学 | Device and method for nitrogen energy regeneration of sewage treatment plant |
| CN112320933A (en) * | 2020-10-21 | 2021-02-05 | 西安建筑科技大学 | Converting ammonia nitrogen in domestic sewage into N2O device and method |
| CN113800629A (en) * | 2020-06-15 | 2021-12-17 | 中国石油化工股份有限公司 | Treatment method and application of organic wastewater |
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| CN112320933B (en) * | 2020-10-21 | 2023-04-07 | 西安建筑科技大学 | Converting ammonia nitrogen in domestic sewage into N 2 O device and method |
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