CN109987698A - A method of accelerate to repair disintegration aerobic particle mud using signaling molecule - Google Patents
A method of accelerate to repair disintegration aerobic particle mud using signaling molecule Download PDFInfo
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- CN109987698A CN109987698A CN201910301631.XA CN201910301631A CN109987698A CN 109987698 A CN109987698 A CN 109987698A CN 201910301631 A CN201910301631 A CN 201910301631A CN 109987698 A CN109987698 A CN 109987698A
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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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
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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Abstract
The present invention relates to a kind of methods for accelerating to repair disintegration aerobic particle mud using signaling molecule, the present invention, which repairs to disintegrate by the way that exogenous AHLs signaling molecule is added, supports granule sludge, during disintegration aerobic particle mud structure repair, crushed particles sludge is accelerated to granulate again, the aerobic particle mud to disintegrate by 20~30 days is substantially completely repaired, repaired aerobic particle mud particle surface is smooth, regular shape, structure consolidation, and there is good settling property, after exogenous AHLs stops addition, granule sludge structure still maintains complete, settling property and grain density are maintained at higher level.The present invention has reached excellent repairing effect to the aerobic particle mud of disintegration by the short-term addition of exogenous AHLs, and the granule sludge structural integrity after reparation, settling property is good, and easy to operate is easy to practical application.
Description
Technical field
The present invention relates to a kind of methods for accelerating to repair disintegration aerobic particle mud using signaling molecule, belong to wastewater biological
Processing technology field.
Background technique
Aerobic particle mud is a kind of special bio aggregate that aerobic sludge microorganism is formed by self-cohesion action
Form, pelletising process relate to the processes such as biology, physics, chemistry.Compared with ordinary activated sludge, aerobic particle mud tool
There are the advantages such as close structure, excellent settling proper, biomass are big, capacity of resisting impact load is strong, microbial population is abundant, compensates for
The defective workmanship of traditional active sludge becomes the new hot spot of biological wastewater treatment area research.
Aerobic particle mud is easy unstability during longtime running and long term storage etc. and finally disintegrates, and becomes and restricts
The main bottleneck of oxygen granule sludge technology development.In aerobic particle mud operational process, when aerobic granularity is excessive
When, the mass transfer and limit of substrate is serious, and cell hydrolysis and death occur inside particle, eventually leads to particle disintegration.It sums up, it is good
There are two the main reason for oxygen granule sludge are unstable, first is that due to the filiform of the heterotroph of fast-growth and undue growth breeding
Bacterium causes aerobic particle mud to gradually become filament, second is that due to substrate and DO mass transfer in large-sized aerobic particle mud
It is limited to cause internal cell hydrolysis, microorganism dead and anaerobic organism growth and breeding.
Iuntercellular and intracellular delivery information can be carried out by the intracorporal certain signaling molecules of biology between microorganism, wherein
Homoserine lactone (AHLs) class signaling molecule is to be used to carry out Communication between a kind of Gram-negative bacteria, coordinate group bacterium
The signaling molecule of group's behavior.By its regulate and control micropopulation behavior include the degradation of specific organic matter, Ti-plasmids conjugation transhipment,
Bioluminescence, EPS secretion and biofilm formation etc., wherein EPS secretion and biofilm formation and granular sludge are closely related.
Since it is widely present in multiple-microorganism, there is versatility, so that using in AHLs regulation biological wastewater treatment engineering
Micropopulation behavior is possibly realized.
Since disintegration aerobic particle mud repair time is long, it is difficult artificially to control, is repaired so far without quick, simple and easy
The method of disintegration aerobic particle mud again.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of using signaling molecule for the aerobic particle mud to disintegrate
The method for accelerating to repair disintegration aerobic particle mud, solving aerobic particle mud because particle disintegrates leads to asking for technique failure
Topic ensures that aerobic granular sludge reactor is run steadily in the long term.
Technical scheme is as follows:
Summary of the invention:
The present invention by research discovery particle disintegrate usually along with colony induction signaling molecule content reduce, especially certain
A little key AHLs signaling molecules such as C6-HSL, C8-HSL etc..Disintegration aerobic particle mud is loosely organized, settling property is poor, signal
Relationship between molecule and the various physicochemical properties of aerobic particle mud is less illustrated.Restorative procedure of the invention is anti-using batch-type
Device operational mode is answered, the mixing acylhomoserine lactones types of populations induction signal molecule of appropriate concentration is added into reactor
(AHLs), using hydraulic detention time as a cycle, primary exogenous AHLs signaling molecule is added at interval of a cycle.
AHLs promotes the secretion of granule sludge extracellular polymeric, makes granule sludge hydrophobicity with higher and grain density, accelerates
The structure repair of crushed particles sludge.So that the granule sludge to disintegrate is reverted to functional, structural integrity granule sludge, can make
Higher sludge concentration and microbial activity are kept in reactor, can shorten aerobic granular sludge reactor the starting time and
Time needed for reaching the stabilization sub stage.
Detailed description of the invention:
A method of accelerate to repair disintegration aerobic particle mud using signaling molecule, comprise the following steps that
(1) adjustment reactor water inlet makes reactor water inlet pH value 6.0~9.0；
(2) heterologous signals molecule is added into reactor water inlet, obtains the water inlet containing signaling molecule；
(3) disintegration aerobic particle mud is restored to room temperature, is seeded in sequencing batch reactor, from batch-type intermittent reaction
Device bottom is passed through the water inlet of step (2) containing signaling molecule, and batch-type batch reactor presses water inlet-aeration-sedimentation-draining side
Formula operation；
(4) reactor runs 20~30 days granule sludges and substantially completely repairs, and settling property is good.
Preferred according to the present invention, in step (1), reactor water inlet is simulated wastewater, and in simulated wastewater, influent COD is
200~800mg/L, carbon-nitrogen ratio maintain 3~20；CaCl2Concentration is 80~120mg/L, MgSO4·7H2O concentration be 80~
100mg/L, FeSO4·7H2O concentration is 20~30mg/L, and KCl concentration is 30~40mg/L, and EDTA concentration is 2.0~4.0mg/
L, H3BO3Concentration is 0.03~0.08mg/L, CuSO4·5H2O concentration is 0.005~0.01mg/L, ZnSO4·7H2O concentration is
0.1~0.2mg/L, KI concentration are 0.05~0.1mg/L, CoCl2·6H2O concentration is 0.03~0.08mg/L, MnCl2·4H2O
Concentration is 0.03~0.05mg/L, Na2MoO4·2H2O concentration is 0.01~0.05mg/L, FeCl3·6H2O concentration be 0.3~
0.6mg/L。
It is preferred according to the present invention, in step (1), using NaHCO3Adjusting reactor water inlet pH value is 6.0~9.0.
Preferred according to the present invention, in step (2), heterologous signals molecule is the induction of acylhomoserine lactones types of populations
Signaling molecule (AHLs).
It is further preferred that acylhomoserine lactones types of populations induction signal molecule (AHLs) is selected from C6-HSL, C8-
Mixing more than one or both of HSL, C10-HSL, C12-HSL.
Currently preferred, in step (2), acylhomoserine lactones types of populations induction signal molecule (AHLs) is C6-
The mixing of HSL, C8-HSL, C10-HSL and C12-HSL.
It is preferred according to the present invention, in step (2), the concentration of the heterologous signals molecule in the water inlet containing signaling molecule
For 10nmol/L~600nmol/L.
It is further preferred that in step (2), the concentration of the heterologous signals molecule in the water inlet containing signaling molecule is
50nmol/L~200nmol/L.
Preferred according to the present invention, in step (3), the disintegration aerobic particle mud is 4 DEG C of conditions by 33 months
The aerobic particle mud to disintegrate after lower storage.
Preferred according to the present invention, in step (3), the sludge concentration of inoculation is 2.0~4.0g/L, and volume is added and accounts for reaction
The 10%~20% of body product.
It is preferred according to the present invention, in step (3), completes water inlet-aeration-sedimentation-and drain as a cycle, operation one
Cycle time is 3~6h, runs 4~8 periods daily, and displacement of volume exchanges ratio 25%~75%.
Preferred according to the present invention, interior during operation in step (3), each flooding time is 10~15min, aeration
Time is 205~215min, and the sedimentation time is 1~10min, and water discharging time is 2~9min.
Preferred according to the present invention, in step (3), the aeration is air aeration, and aeration quantity is 0.1~0.2m3/ h,
The surface gas velocity of reactor setting is 1~2cm/s.
Preferred according to the present invention, in step (3), batch-type batch reactor running temperature is 15 DEG C~25 DEG C.
The present invention has the advantage that
1, the present invention, which repairs to disintegrate by the way that exogenous AHLs signaling molecule is added, supports granule sludge, AHLs signaling molecule
The secretion that can promote granule sludge extracellular polymeric makes granule sludge hydrophobicity with higher and grain density, accelerates brokenly
The structure repair of broken particle sludge.So that the granule sludge to disintegrate is reverted to functional, structural integrity granule sludge, can make anti-
It answers and keeps higher sludge concentration and microbial activity in device, the starting time of aerobic granular sludge reactor can be shortened and reached
Time needed for the stabilization sub stage.
2, repair time of the invention is short, and the granule sludge of disintegration can be repaired completely at 20~30 days, repairs success rate
Height, repaired aerobic particle mud particle surface is smooth, regular shape, structure consolidation, and has good settling property.
3, the signaling molecule that is added of the present invention is a kind of regulatory mechanism of microorganism itself, therefore the group based on AHLs
Induction application is a kind of green, nontoxic, environmental-friendly Sewage Biological Treatment control measures, meets sustainable development reason
It reads, has broad application prospects.
4, restorative procedure of the invention, it is convenient and simple for operation, at low cost, it is reliable and stable.
Detailed description of the invention
Fig. 1 is the photo of disintegration aerobic particle mud before repairing；
Fig. 2 is the aerobic particle mud photo after the method for embodiment 1 is repaired；
Fig. 3 is the aerobic particle mud photo after the method for embodiment 2 is repaired；
Fig. 4 is aerobic particle mud photo after the method for example 1 by contrast is repaired；
Specific embodiment
Below by embodiment and referring to attached drawing, the present invention is described in detail.It is important to point out that embodiment is served only for
Invention is further explained, should not be understood as limiting the scope of the invention, the person skilled in the art in the field
Some nonessential modifications and adaptations can be made to the present invention according to aforementioned present invention content.
Batch-type batch reactor in embodiment is the prior art, and dischargeable capacity 4L, outer tube diameter 9.0cm are high
100cm.The bottom of reactor is provided with water inlet and aeration opening, side wall upper part is provided with water outlet, water inlet be connected with into
Peristaltic pump is arranged on water inlet pipe for water pipe, and aeration opening connects aerated conduit, and air is pacified by aerated conduit by reactor bottom center
The micro porous aeration head of dress enters reactor.Water outlet connects outlet pipe, and outlet pipe is by time switch and solenoid valve control, water outlet
At the high 40cm of reactor, by the on-off of solenoid valve control discharge outlet, volume-exchange rate is 50%.The water inlet of reactor, aeration,
Sedimentation and water discharge time are automatically controlled by four time relays.
In embodiment, N- caproyl-DL- homoserine lactone (C6-HSL), N- caprylyl-DL- homoserine lactone
(C8-HSL), N- capryl-DL- homoserine lactone (C10-HSL), N- alkanoyl-DL- homoserine lactone (C12-HSL)
It is purchased from Sigma (China) company, purity is higher than 97%.
Embodiment 1
A method of using signaling molecule accelerate repair disintegration aerobic particle mud, periodically characterize particles hydrophobic,
The physical and chemical indexes such as granule density and particle extracellular polymeric investigate particle repairing effect, comprise the following steps that
(1) seed sludge: the hollow disintegration granule sludge of storage laboratory early period, storage time 33 months, storage temperature
It is 4 DEG C；Reactor seed sludge concentration (MLSS) is 2.0g/L~4.0g/L；
(2) preparation for simulating sanitary wastewater is prepared simulation sanitary wastewater, is made in waste water, ammonia nitrogen concentration 100mg/L；COD
Concentration is 500mg/L；MgSO4·7H2O concentration is 90mg/L；FeSO4·7H20 concentration is 25mg/L；CaCl2Concentration is 80mg/
L；KH2PO4Concentration is 40mg/L；FeCl3·6H2O concentration is 0.45mg/L；EDTA concentration is 3mg/L；KCl concentration is 36mg/
L, H3BO3Concentration is 0.045mg/L；ZnSO4·7H2O concentration is 0.12mg/L；KI concentration is 0.054mg/L；CuSO4·5H2O
Concentration is 0.009mg/L；NaMoO4·2H2O concentration is 0.018mg/L；CoCl2·6H2O concentration is 0.045mg/L；MnCl2·
4H2O concentration is 0.036mg/L；Use NaHCO3PH is adjusted 60~9.0；
(3) acylhomoserine lactones types of populations induction signal molecule (AHLs) is added into simulation sanitary wastewater, acyl group
Homoserine lactones types of populations induction signal molecule (AHLs) concentration is 50nmol/L, wherein C6-HSL 12nmol/L, C8-HSL
6nmol/L, C10-HSL 18nmol/L, C12-HSL 14nmol/L, AHLs type and concentration are stored up according to aerobic particle mud
AHLs detection type and concentration determine when operating normally before depositing；
(4) batch-type batch reactor bottom is passed through the water inlet containing AHLs, and reactor uses periodic running mode, makes
Reflected the period with time control switch control, each period is set as 4h, including 12min water inlet, 3.5h aeration, 0~5 day sedimentation time
For 5min, water discharging time 13min, 5~10 day sedimentation time 2min, water discharging time 16min, water discharging time 1min after 10 days,
Water discharging time 17min.Reactor configurations gas flowmeter, control air mass flow are 0.3m3/ h with provide enough dissolved oxygens and
Hydraulic shear.The each period water outlet volume of reactor is 2L, and hydraulic detention time (HRT) is 8h, and reactor is in room temperature (15
~25 DEG C) under run；
When reactor is run 5 days, granule sludge is substantially all to be turned yellow；When reactor is run 25 days, solved in reactor
The substantially all granulating of body granule sludge, particle surface is smooth, regular shape, structure consolidation, grain structure such as Fig. 2 after reparation
Shown, and have good settling property, grain density increases to 49.99gVSS/L from 11.78gVSS/L, particles hydrophobic from
31.06% increases to 78.30%.After AHLs is added in stopping in 35th day, granule sludge form is still complete, and settling property is preferable.
Embodiment 2
A method of using signaling molecule accelerate repair disintegration aerobic particle mud, periodically characterize particles hydrophobic,
The physical and chemical indexes such as granule density and particle extracellular polymeric investigate particle repairing effect, comprise the following steps that
(1) seed sludge: the hollow disintegration granule sludge of storage laboratory early period, storage time 33 months, storage temperature
It is 4 DEG C；Reactor seed sludge concentration (MLSS) is 2.0g/L~4.0g/L；
(2) preparation for simulating sanitary wastewater is prepared simulation sanitary wastewater, is made in waste water, ammonia nitrogen concentration 100mg/L；COD
Concentration is 500mg/L；MgSO4·7H2O concentration is 90mg/L；FeSO4·7H20 concentration is 25mg/L；CaCl2Concentration is 80mg/
L；KH2PO4Concentration is 40mg/L；FeCl3·6H2O concentration is 0.45mg/L；EDTA concentration is 3mg/L；KCl concentration is 36mg/
L, H3BO3Concentration is 0.045mg/L；ZnSO4·7H2O concentration is 0.12mg/L；KI concentration is 0.054mg/L；CuSO4·5H2O
Concentration is 0.009mg/L；NaMoO4·2H2O concentration is 0.018mg/L；CoCl2·6H2O concentration is 0.045mg/L；MnCl2·
4H2O concentration is 0.036mg/L；Use NaHCO3PH is adjusted 6.0~9.0；
(3) acylhomoserine lactones types of populations induction signal molecule (AHLs) is added into simulation sanitary wastewater, acyl group
Homoserine lactones types of populations induction signal molecule (AHLs) concentration is 500nmol/L, wherein C6-HSL 120nmol/L, C8-
HSL 60nmol/L, C10-HSL 180nmol/L, C12-HSL 140nmol/L, AHLs type and concentration are according to aerobic grain
AHLs detection type and concentration determine when operating normally before sewage sludge storage；
(4) batch-type batch reactor bottom is passed through the water inlet containing AHLs, and reactor uses periodic running mode, makes
Reflected the period with time control switch control, each period is set as 4h, including 12min water inlet, 3.5h aeration, 0~5 day sedimentation time
For 5min, water discharging time 13min, 5~10 day sedimentation time 2min, water discharging time 16min, water discharging time 1min after 10 days,
Water discharging time 17min.Reactor configurations gas flowmeter, control air mass flow are 0.3m3/ h with provide enough dissolved oxygens and
Hydraulic shear.The each period water outlet volume of reactor is 2L, and hydraulic detention time (HRT) is 8h, and reactor is in room temperature (15
~25 DEG C) under run；
When reactor is run 5 days, granule sludge is substantially all to be turned yellow, and when reactor is run 30 days, is solved in reactor
Body granule sludge reparation is basically completed, and particle surface is smooth, regular shape, structure consolidation, grain structure such as Fig. 3 institute after reparation
Show, and there is good settling property, grain density increases to 46.71gVSS/L from 12.83gVSS/L, particles hydrophobic from
30.43% increases to 72.40%.After AHLs is added in stopping in 35th day, granule sludge form is still complete, and settling property is preferable.
Upper embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications etc. done without departing from the spirit and principles of the present invention
It should be equivalent substitute mode, be included within the scope of the present invention
Comparative example 1
A method of disintegration aerobic particle mud being repaired, method and step are the same as embodiment 1, difference are as follows:
It directly is passed through simulation sanitary wastewater from batch-type batch reactor bottom, is added without acylhomoserine lactones monoid
Body induction signal molecule (AHLs), other methods press the progress of embodiment 1.
Comparative example 1 after tested, particle is in broken state mostly in the entire experiment process, and the grain structure after reparation is such as
Shown in Fig. 3, grain density and hydrophobicity are also below embodiment.
Claims (10)
1. a kind of method for being accelerated to repair disintegration aerobic particle mud using signaling molecule, is comprised the following steps that
(1) adjustment reactor water inlet makes reactor water inlet pH value 6.0~9.0；
(2) heterologous signals molecule is added into reactor water inlet, obtains the water inlet containing signaling molecule；
(3) disintegration aerobic particle mud is restored to room temperature, is seeded in sequencing batch reactor, from batch-type batch reactor bottom
Portion is passed through the water inlet of step (2) containing signaling molecule, and batch-type batch reactor is transported in the way of water inlet-aeration-sedimentation-draining
Row；
(4) reactor runs 20~30 days granule sludges and substantially completely repairs, and settling property is good.
2. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (1), reactor water inlet is simulated wastewater, and in simulated wastewater, influent COD is 200~800mg/L, and carbon-nitrogen ratio maintains
3~20；CaCl2Concentration is 80~120mg/L, MgSO4·7H2O concentration is 80~100mg/L, FeSO4·7H2O concentration is 20
~30mg/L, KCl concentration are 30~40mg/L, and EDTA concentration is 2.0~4.0mg/L, H3BO3Concentration is 0.03~0.08mg/L,
CuSO4·5H2O concentration is 0.005~0.01mg/L, ZnSO4·7H2O concentration be 0.1~0.2mg/L, KI concentration be 0.05~
0.1mg/L, CoCl2·6H2O concentration is 0.03~0.08mg/L, MnCl2·4H2O concentration is 0.03~0.05mg/L,
Na2MoO4·2H2O concentration is 0.01~0.05mg/L, FeCl3·6H2O concentration is 0.3~0.6mg/L.
3. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (1), using NaHCO3Adjusting reactor water inlet pH value is 6.0~9.0.
4. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (2), heterologous signals molecule is acylhomoserine lactones types of populations induction signal molecule (AHLs).
5. the method according to claim 4 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In acylhomoserine lactones types of populations induction signal molecule (AHLs) is selected from C6-HSL, C8-HSL, C10-HSL, C12-HSL
One or both of more than mixing, it is preferred that acylhomoserine lactones types of populations induction signal molecule (AHLs) be C6-
The mixing of HSL, C8-HSL, C10-HSL and C12-HSL.
6. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (2), the concentration of the heterologous signals molecule in the water inlet containing signaling molecule is 10nmol/L~600nmol/L.
7. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (2), the concentration of the heterologous signals molecule in the water inlet containing signaling molecule is 50nmol/L~200nmol/L.
8. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (3), the disintegration aerobic particle mud is the aerobic grain to disintegrate after storing under the conditions of 33 months, 4 DEG C
Sludge.
9. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (3), the sludge concentration of inoculation is 2.0~4.0g/L, and volume is added and accounts for the 10%~20% of reactor volume.
10. the method according to claim 1 for being accelerated to repair disintegration aerobic particle mud using signaling molecule, feature are existed
In in step (3), completing water inlet-aeration-sedimentation-and drain as a cycle, the operation a cycle time is 3~6h, daily fortune
4~8 periods of row, displacement of volume exchange ratio 25%~75%, interior during operation, and each flooding time is 10~15min, expose
The gas time is 205~215min, and the sedimentation time is 1~10min, and water discharging time is 2~9min, and the aeration is air exposure
Gas, aeration quantity are 0.1~0.2m3/ h, the surface gas velocity of reactor setting are 1~2cm/s, batch-type batch reactor operation temperature
Degree is 15 DEG C~25 DEG C.
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| CN110482697A (en) * | 2019-08-01 | 2019-11-22 | 广西大学 | A method of using signaling molecule regulation anaerobic grain sludge microenvironment to promote anaerobic digestion to delay calcification |
| CN111018103A (en) * | 2020-01-15 | 2020-04-17 | 黑龙江科技大学 | Method for directionally regulating and controlling stable operation of aerobic granular sludge |
| CN111661977A (en) * | 2020-05-26 | 2020-09-15 | 中国科学院南京土壤研究所 | Method for promoting phosphorus removal by stimulating periphyton by AHLs group quorum sensing signal molecules and biological phosphorus removal system |
| CN112794437A (en) * | 2020-12-30 | 2021-05-14 | 山东大学 | Method for strengthening remediation of polycyclic aromatic hydrocarbon polluted water body by modifying aerobic granular sludge through cyclodextrin |
| CN113233579A (en) * | 2021-04-19 | 2021-08-10 | 西安建筑科技大学 | Strengthening method and device for aerobic sludge granulation |
| CN114057284A (en) * | 2021-11-24 | 2022-02-18 | 北京工业大学 | Device and method for improving salt impact resistance of anaerobic ammonia oxidation particle system based on quorum sensing effect |
| CN114684924A (en) * | 2020-12-30 | 2022-07-01 | 中国石油化工股份有限公司 | Denitrification treatment method for salt-containing wastewater |
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| CN111018103A (en) * | 2020-01-15 | 2020-04-17 | 黑龙江科技大学 | Method for directionally regulating and controlling stable operation of aerobic granular sludge |
| CN111661977A (en) * | 2020-05-26 | 2020-09-15 | 中国科学院南京土壤研究所 | Method for promoting phosphorus removal by stimulating periphyton by AHLs group quorum sensing signal molecules and biological phosphorus removal system |
| CN111661977B (en) * | 2020-05-26 | 2021-10-15 | 中国科学院南京土壤研究所 | Method for promoting phosphorus removal by stimulating periphyton by AHLs group quorum sensing signal molecules and biological phosphorus removal system |
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| CN114684924A (en) * | 2020-12-30 | 2022-07-01 | 中国石油化工股份有限公司 | Denitrification treatment method for salt-containing wastewater |
| CN113233579A (en) * | 2021-04-19 | 2021-08-10 | 西安建筑科技大学 | Strengthening method and device for aerobic sludge granulation |
| CN114057284A (en) * | 2021-11-24 | 2022-02-18 | 北京工业大学 | Device and method for improving salt impact resistance of anaerobic ammonia oxidation particle system based on quorum sensing effect |
| CN114057284B (en) * | 2021-11-24 | 2024-04-19 | 北京工业大学 | Device and method for improving salt impact resistance of anaerobic ammonia oxidation particle system based on quorum sensing |
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