CN107337275A - The aerobic particle mud of high denitrification ability, cultural method and culture apparatus under a kind of low temperature - Google Patents
The aerobic particle mud of high denitrification ability, cultural method and culture apparatus under a kind of low temperature Download PDFInfo
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- CN107337275A CN107337275A CN201710604254.8A CN201710604254A CN107337275A CN 107337275 A CN107337275 A CN 107337275A CN 201710604254 A CN201710604254 A CN 201710604254A CN 107337275 A CN107337275 A CN 107337275A
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- 239000002245 particle Substances 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000010802 sludge Substances 0.000 claims abstract description 133
- 239000003610 charcoal Substances 0.000 claims abstract description 82
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 67
- 235000009566 rice Nutrition 0.000 claims abstract description 67
- 239000010903 husk Substances 0.000 claims abstract description 65
- 239000010865 sewage Substances 0.000 claims abstract description 31
- 239000010801 sewage sludge Substances 0.000 claims abstract description 6
- 241000209094 Oryza Species 0.000 claims description 66
- 238000005273 aeration Methods 0.000 claims description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 23
- 239000001301 oxygen Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- 238000003756 stirring Methods 0.000 claims description 18
- 239000010840 domestic wastewater Substances 0.000 claims description 15
- 235000013339 cereals Nutrition 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 6
- 238000011081 inoculation Methods 0.000 claims description 6
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 5
- 230000033228 biological regulation Effects 0.000 claims description 5
- 239000008103 glucose Substances 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 34
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 17
- 125000001477 organic nitrogen group Chemical group 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004176 ammonification Methods 0.000 abstract description 2
- 240000007594 Oryza sativa Species 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 15
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 12
- 241000894006 Bacteria Species 0.000 description 11
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 244000005700 microbiome Species 0.000 description 7
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 6
- 235000017491 Bambusa tulda Nutrition 0.000 description 6
- 241001330002 Bambuseae Species 0.000 description 6
- 235000013162 Cocos nucifera Nutrition 0.000 description 6
- 244000060011 Cocos nucifera Species 0.000 description 6
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 6
- 239000011425 bamboo Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 6
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 150000004665 fatty acids Chemical class 0.000 description 6
- 240000002853 Nelumbo nucifera Species 0.000 description 5
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 5
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000002351 wastewater Substances 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical class [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 2
- 229940072056 alginate Drugs 0.000 description 2
- 235000010443 alginic acid Nutrition 0.000 description 2
- 229920000615 alginic acid Polymers 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000004021 humic acid Substances 0.000 description 2
- 239000002054 inoculum Substances 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 241000589180 Rhizobium Species 0.000 description 1
- 241000589187 Rhizobium sp. Species 0.000 description 1
- 241000044176 Rhizobium sp. NJUST18 Species 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
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 150000003222 pyridines Chemical class 0.000 description 1
- -1 rice bran Chemical compound 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000011091 sodium acetates Nutrition 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
-
- 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
- C02F3/1205—Particular type of activated sludge processes
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
-
- 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
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses aerobic particle mud, cultural method and the culture apparatus of high denitrification ability under a kind of low temperature, belong to field of environment engineering technology.The device includes aerobic granular sludge reactor and water supplying unit, and the aerobic granular sludge reactor upper end is provided with water inlet, the aerobic particle mud formed using rice husk charcoal as core is filled with aerobic granular sludge reactor；The water supplying unit includes water inlet pipe, and pump is provided with water inlet pipe and the head of water inlet pipe is stretched into aerobic granular sludge reactor by water inlet, draws sanitary sewage and enters aerobic granular sludge reactor.The present invention compensate for activated sludge ammonification, nitrification and denitrification scarce capacity in the processing of existing low-temperature sewage, cause low temperature active sewage sludge reactor water outlet soluble organic nitrogen, the defects of ammonia nitrogen and total nitrogen concentration are higher.
Description
Technical field
The invention belongs to purifying domestic sewage processing technology field, more particularly to one kind to add rice into cotton-shaped activated sludge
Shell charcoal (Biochar) forms aerobic particle mud technique, strengthens Microbial denitrogenation ability under low temperature, is primarily adapted for use in 4-15
The strengthened denitrification of sanitary sewage under DEG C cryogenic conditions, reduces sewage disposal plant effluent soluble organic nitrogen, ammonia nitrogen and total nitrogen.
Background technology
The abundance of denitrifier (ammonifiers, nitrifier and denitrifying bacterium) and work in activated sludge under the conditions of low temperature (15 DEG C of ＜)
Property decline, cause the concentration of the soluble organic nitrogen of sewage treatment plant's low temperature water outlet, ammonia nitrogen and total nitrogen to rise, effluent quality is disliked
Change.Cotton-shaped activated sludge process is a kind of Aerobic biological process technology of the widest sewage of current application, accounts for municipal sewage treatment
More than the 90% of technique, but the denitrification activity of cotton-shaped activated sludge declines substantially under cryogenic.
The key for improving Microbial denitrogenation ability under cryogenic conditions is to strengthen the denitrification ability of active sludge microorganism, at present
Strengthening the method for active sludge treatment effect under cryogenic conditions mainly has change operation process, regulation operational factor, regulation water inlet
Water quality, physical strengthening, additive or efficiently cold-resistant strain are added, still, these methods have its own limitation；It is in addition, low
Sewage treatment process and parameters of engineering design under the conditions of temperature is also larger with difference under normal temperature condition.
As Chinese Patent Application No. be 201510751936.2, data of publication of application be on March 23rd, 2016 patent application
File discloses a kind of method for accelerating granular sludge using charcoal, comprises the following steps：(1)Rhizobium
The preparation of sp.NJUST18 inoculums：Rhizobium sp.INJUST18 are seeded to and with the addition of the inorganic of 0.5-2g/L pyridines
In salt culture medium MSM, shaking table culture centrifuged bacterium solution 10 minutes after 96 hours under the conditions of 8000*g, the bacterium that will be obtained
Inoculum of the body deposit as sbr reactor device；(2) startup of reactor：To sbr reactor device add pyridine containing 500mg/L with
The simulated wastewater of 500mg/L sodium acetates, the activated sludge of Rhizobium sp.NJUST18 and the 2g dry weights of 2g dry weights is mixed,
Added as Mixed inocula in sbr reactor device, 4g/L charcoals, sbr reactor device volume are added during sbr reactor device initial start stage
The method of operation for the sbr reactor device that exchange rate is 50% is：Water inlet-aeration-sedimentation-water outlet；(3) culture of granule sludge：Instead
During answering device startup optimization, as pyridine degradable performance improves in simulated wastewater, gradually reduce sodium acetate in simulated wastewater and contain
Amount, pyridine content is stepped up in simulated wastewater to 3000mg/L；Progressively the cycle of operation was progressively adjusted to 8 hours by 24 hours
To increase influent load；Progressively the sedimentation time of sludge was reduced to 2 minutes by 10 minutes, until pyridine is only in simulated wastewater
One carbon source and nitrogen source.This method is simple to operate, and rice bran can be utilized to make 0.01-0.5mm charcoals and form aerobic particle mud.
Chinese Patent Application No. is 201510002654.2, and data of publication of application is literary for the patent application on April 22nd, 2015
Part discloses a kind of method of low temperature rapidly cultivating aerobic particle sludge, specifically comprises the following steps：(1) by 5L Aerobic Ponds activity
Sludge seeding is in interior circulation sequence batch gas stripping type reactor, SBAR dischargeable capacity 10.4L, draining than 50%, reaction time 3h,
Each cycle water inlet 5.2L, it is 8-12 DEG C to control water temperature, and regulation water inlet pH value is 7.0 ± 0.2；Wherein, static water inlet phase 60min,
Aerated reaction phase 112min, sludge settling phase 3min, Quick drainage phase 5min；Static water inlet phase saturation dissolved oxygen is 0, aeration
Reaction phase saturation dissolved oxygen is 100%；(2) every 8 reaction times add an alginate particle, add in the aerated reaction phase
Adding, addition is about 1.4% (m/m) of a cycle inflow, and each alginate particle adds quantity about 200, until
Mud granule is formed.
Relative to cotton-shaped activated sludge process, aerobic activated sludge process has anaerobic layer, anoxic layer and aerobic layer concurrently, can be enriched with
Nitrifier and denitrifying bacterium, it is the technique that denitrification ability is stronger under a kind of generally acknowledged cryogenic conditions.The ammonifiers of anaerobic layer can
Strengthen the degraded of soluble organic nitrogen, the denitrifying bacterium of anoxic layer can strengthen the removal of nitrate, the environmental benefits of aerobic layer
In the enrichment of nitrifier.Microorganism is low to the utilization rate of carbon source under cryogenic conditions, and denitrifying carbon source deficiency is, it is necessary to find a knot
The metastable carbon source of structure is providing denitrifying carbon source for a long time as aerobic particle mud core.Rice husk charcoal is a kind of
Slow release carbon source, the loss amount for adding 5 years in soil is 50-80%, can significantly improve volatile fatty acid (VFAs) content.
Although it is that core forms aerobic particle mud that the technical scheme of the document of the above two make use of rice bran and sodium alginate, but for
The denitrification ability of active sludge microorganism is not studied well, it is impossible to effectively solves the problems, such as low-temperature sewage denitrogenation.This
Outside, the rice husk charcoal that the present invention uses is a kind of agricultural solid waste easily obtained more cheap than both the above material, and in shape
There is significant advantage on into the time of aerobic particle mud.
The content of the invention
1. to solve the problems, such as
For the water outlet soluble organic nitrogen of activated sludge process under existing cryogenic conditions, ammonia nitrogen and total nitrogen content it is higher without
The problem of up to standard, the invention provides a kind of culture apparatus of the aerobic particle mud of high denitrification ability under low temperature, the device with
Rice husk charcoal forms aerobic particle mud as core, has the group of aerobic, anoxic and anaerobism concurrently, and by rice husk charcoal
Extra denitrifying carbon source is provided, solve sanitary sewage plant effluent soluble organic nitrogen under existing cryogenic conditions, ammonia nitrogen with
The problem of total nitrogen is not up to standard.
Invention further provides a kind of aerobic particle mud of high denitrification ability under low temperature, and core is used as by the use of rice husk charcoal
The heart, aerobic particle mud is formed compared to other method, start that the time is shorter, can solve that aerobic particle mud easily disintegrates asks
Topic, while rice husk charcoal can constantly discharge volatile fatty acid, and extra carbon source is provided for denitrification.
Invention further provides a kind of cultural method of the aerobic particle mud of high denitrification ability under low temperature, adds rice husk life
The concentration of thing charcoal is 500-1000mg/L, and the concentration of cotton-shaped activated sludge is 3000-4000mg/L, floc sludge is adsorbed
Aerobic particle mud is formed on charcoal, so as to improve the effect of activated sludge denitrogenation under cryogenic simultaneously.
2. technical scheme
Inventive principle：Rice husk charcoal is added into cotton-shaped activated sludge, core can be used as to accelerate aerobic particle mud
Formation, aerobic particle mud technique has anaerobism, anoxic and aerobic three modes drop concurrently from the inside to surface, has ammonification, nitrification
With three kinds of functions of denitrification；Meanwhile volatile fatty acid can be discharged as the rice husk charcoal of core, as carbon source, promote
The denitrifying bacterium of anoxic layer carries out denitrification using volatile fatty acid.
In order to solve the above problems, the technical solution adopted in the present invention is as follows：
The culture apparatus of the aerobic particle mud of high denitrification ability under a kind of low temperature of the present invention, the device include aerobic
Grain sewage sludge reactor and water supplying unit, the aerobic granular sludge reactor upper end are provided with water inlet, aerobic particle mud reaction
Cotton-shaped activated sludge and rice husk charcoal are filled with device；The water supplying unit includes water inlet pipe, be provided with water inlet pipe pump and
The head of water inlet pipe is stretched into aerobic granular sludge reactor by water inlet, is drawn sanitary sewage and is reacted into aerobic particle mud
Device.
As a further improvement on the present invention, discharge outlet and spoil disposal are provided with the aerobic granular sludge reactor side wall
Mouthful.
As a further improvement on the present invention, the device also includes agitating unit, the agitating unit include power part,
The agitating shaft and agitating paddle being connected with power part, agitating shaft are arranged in water inlet pipe and extend downward into aerobic particle mud
Reactor bottom, agitating paddle are fixed on the lower end of agitating shaft, and exporting power by power part is transferred to agitating paddle, and agitating paddle fills
Divide stirring active sludge.
As a further improvement on the present invention, the device also includes aeration unit, and the aeration unit is arranged on aerobic
Among the bottom of grain sewage sludge reactor and below agitating paddle, using aeration unit in the centre of aerobic granular sludge reactor
Position, the environment of the aerobic lower floor's anoxic in upper strata is formed, not only beneficial to growth of the denitrifying bacterium under aerobic environment again beneficial to it scarce
Had an effect under oxygen environment as function strain.
As a further improvement on the present invention, the device also includes dissolved oxygen meter, and dissolved oxygen meter includes control
Device and test bar, both are connected by wire, and test bar is placed in aerobic granular sludge reactor, control the concentration of dissolved oxygen to exist
5-6mg/L。
As a further improvement on the present invention, the concentration of the cotton-shaped activated sludge is 3000-4000mg/L.
As a further improvement on the present invention, the concentration of the rice husk charcoal is 500-1000mg/L.
The cultural method of the aerobic particle mud of high denitrification ability, is comprised the following steps that under a kind of low temperature of the present invention：
(a) under 4-15 DEG C of cryogenic conditions, the cotton-shaped activated sludge of inoculation is added to aerobic granular sludge reactor, is carried out
Stirring and Air Exposure, make cotton-shaped activated sludge reach the state being thoroughly mixed；
(b) rice husk charcoal is added into aerobic granular sludge reactor, it is quiet after carrying out stirring and the aeration of 24 hours
Put, discharge is suspended in a small amount of rice husk charcoal on the water surface；Organic loading 1.6- is added into aerobic granular sludge reactor
2.0kg/(m3D) simulated domestic wastewater, after carrying out stirring and the aeration of 24 hours, stand, discharge is deposited in rice husk biology
The cotton-shaped activated sludge on charcoal upper strata；
(c) the cotton-shaped activated sludge being adhered to above aerobic particle mud can produce new cotton-shaped activated sludge, pass through row
Cotton-shaped activated sludge caused by the constantly discharge of mud mouth is new, after domestication 10 days, adds actual sanitary sewage and is handled, progressively
Water inlet organic loading is reduced to 0.6-0.8kg/ (m3D), C/N ratios are adjusted to 100: 5 by additional glucose, during hydraulic retention
Between 12h, Dissolved Oxygen concentration Control is in 5-6mg/L, after stable state is reached, gradually reduces simulated domestic wastewater to being not added with
Enter, form aerobic particle mud.
As a further improvement on the present invention, cotton-shaped work is added to aerobic granular sludge reactor in described step (a)
The concentration of property sludge is 3000-4000mg/L.
As a further improvement on the present invention, rice husk is added into aerobic granular sludge reactor in described step (b)
The concentration of charcoal is 500-1000mg/L.
A kind of aerobic particle mud obtained by above-mentioned cultural method of the present invention, using rice husk charcoal as core,
Domestic sewage denitrifying reaches optimal under 4-15 DEG C of cryogenic conditions.
3. beneficial effect
Compared to prior art, beneficial effects of the present invention are：
(1) present invention in a low temperature of high denitrification ability aerobic particle mud culture apparatus, formed with rice husk biology
Aerobic particle mud of the charcoal as core, can effectively reduce activated sludge process under cryogenic conditions water outlet soluble organic nitrogen,
Ammonia nitrogen and total nitrogen content, compared to other known biological carbon (such as rice bran, coconut husk, bamboo), rice in the case of equal quality
The aerobic particle mud that shell charcoal is formed removes the best results of ammonia nitrogen and total nitrogen；The feelings for being 20mg/L in water inlet total nitrogen concentration
Under condition, the aerobic particle mud technique that rice husk biology is formed can control low-temp reaction device water outlet soluble organic nitrogen concentration to be less than
1mg/L, ammonia nitrogen concentration are less than 4mg/L, and total nitrogen concentration is less than 12mg/L.
(2) present invention in a low temperature of high denitrification ability aerobic particle mud, be used as core, low temperature by the use of rice husk charcoal
Cotton-shaped activated sludge is quickly formed into aerobic particle mud within lower 30 days, compared to other formation aerobic particle muds, started
Time is shorter, can solve the problems, such as that aerobic particle mud easily disintegrates, while rice husk charcoal can constantly discharge volatility fat
Fat acid, extra carbon source is provided for denitrification；
(3) present invention in a low temperature of high denitrification ability aerobic particle mud cultural method, it is anti-to aerobic particle mud
The concentration for answering addition rice husk charcoal in device is 500-1000mg/L, and the concentration of cotton-shaped activated sludge is 3000-4000mg/L, is made
Floc sludge can adsorb and aerobic particle mud is formed on charcoal, so as to improve activated sludge in cryogenic conditions simultaneously
The effect of lower denitrogenation；
(4) in a low temperature of the present invention aerobic particle mud of high denitrification ability cultural method, it is dirty without special activity
Mud microorganism, it is only necessary to the second pond sludge of common sewage treatment plant, sewage treatment plant be typically all handle carbon-nitrogen ratio compared with
Low sewage, nitrifier and denitrifying bacterium are readily available, and general nitrifier accounts for total sludge strain 2% or so, and denitrifying bacterium bacterium accounts for
12% or so.
(5) culture apparatus of the aerobic particle mud of high denitrification ability is simple in construction in a low temperature of the present invention, reasonable in design,
It is easily fabricated, and granular sludge ratio is high.
Brief description of the drawings
Fig. 1 be the present invention in a low temperature of high denitrification ability aerobic particle mud culture apparatus structural representation；
Fig. 2 is the microorganism for the aerobic particle mud surface adhesion that the present invention is formed using coconut husk charcoal；
Fig. 3 is the microorganism for the aerobic particle mud surface adhesion that the present invention is formed using rice husk charcoal；
Fig. 4 is the microorganism for the aerobic particle mud surface adhesion that the present invention is formed using bamboo charcoal；
Fig. 5 is the three-dimensional fluorescence figure that aerobic granular sludge reactor low temperature water outlet is formed using rice husk charcoal；
Fig. 6 is the three-dimensional fluorescence figure of common cotton-shaped activated sludge reactor low temperature water outlet；
Fig. 7 is the three-dimensional fluorescence figure that aerobic granular sludge reactor low temperature water outlet is formed using anaerobic grain sludge.
In figure：1st, water inlet pipe；2nd, pump；3rd, aerobic granular sludge reactor；4th, discharge outlet；5th, aerobic particle mud；6th, stir
Mix oar；7th, mud discharging mouth；8th, dissolved oxygen meter；9th, aeration unit.
Embodiment
Accompanying drawing hereafter with reference to the detailed description of the exemplary embodiment of the present invention, the accompanying drawing forms one of description
Point, show the enforceable exemplary embodiment of the present invention as example in the figure.Although these exemplary embodiment quilts
Fully describe in detail to enable those skilled in the art to implement the present invention, it is to be understood that can realize other embodiment and
Can without departing from the spirit and scope of the present invention to the present invention various changes can be made.Hereafter to embodiments of the invention
More detailed description is not limited to required the scope of the present invention, and just to be illustrated and do not limit pair
The description of the features of the present invention and feature, to propose to perform the best mode of the present invention, and it is sufficient so that those skilled in the art
The present invention can be implemented.Therefore, the scope of the invention is only defined by the appended claims.
Hereafter detailed description of the present invention and example embodiment can be more fully understood with reference to accompanying drawing, wherein the present invention
Element and feature are identified by reference.
With reference to Fig. 1, the culture apparatus of the aerobic particle mud of high denitrification ability in the case where sewage treatment plant establishes low temperature.This hair
It is bright including aerobic granular sludge reactor 3, agitating unit, aeration unit 9, dissolved oxygen meter 8 and water supplying unit, this aerobic
Most of structure of grain sewage sludge reactor 3 is the structure of reactor disclosed in publication number CN106219746A patent of invention, good
The upper end of oxygen granular sludge reactor 3 is provided with water inlet, and discharge outlet 4 and spoil disposal are provided with the side wall of aerobic granular sludge reactor 3
Mouth 7, reactor is interior to be filled with cotton-shaped activated sludge and rice husk charcoal；Water supplying unit includes water inlet pipe 1, is installed on water inlet pipe 1
There is the head of pump 2 and water inlet pipe 1 to be stretched into by water inlet in aerobic granular sludge reactor 3, draw sanitary sewage and enter aerobic grain
Sewage sludge reactor 3；The agitating shaft and agitating paddle 6 that agitating unit includes power part, is connected with power part, agitating shaft is worn
In water inlet pipe 1 and the bottom of aerobic granular sludge reactor 3 is extended downward into, agitating paddle 6 is fixed on the lower end of agitating shaft, passed through
Power part output power is transferred to agitating paddle 6, and agitating paddle 6 is sufficiently stirred cotton-shaped activated sludge；Aeration unit 9 is arranged on aerobic
Among the bottom of granular sludge reactor 3 and positioned at the lower section of agitating paddle 6, using aeration unit 9 in aerobic granular sludge reactor 3
Middle part, form the environment of the aerobic lower floor's anoxic in upper strata, not only beneficial to growth of the denitrifying bacterium under aerobic environment but also be beneficial to
It has an effect under anaerobic environment as function strain；Dissolved oxygen meter 8 includes controller and test bar, and both are by leading
Line is connected, and test bar is placed in reactor, controls the concentration of dissolved oxygen in 5-6mg/L.Numerous dissolved oxygens in the market are surveyed
Determine instrument and may be incorporated for the present invention, the dissolved oxygen meter 8 that the present invention uses uses the dissolved oxygen meter of U.S.'s Hash
(Polymetron 9582)。
Inventor combines the reaction mechanism of aerobic particle mud method by long-term substantial amounts of experimental study, finally draws
Technical scheme, i.e., by adding rice husk charcoal into cotton-shaped activated sludge, aerobic can be accelerated as core
The formation of grain sludge 5, the technique of aerobic particle mud 5 have anaerobism, anoxic and aerobic three modes drop concurrently, have ammonia from the inside to surface
Change, three kinds of functions of nitrification and denitrification；Meanwhile volatile fatty acid can be discharged as the rice husk charcoal of core, as carbon
Source, promote the denitrifying bacterium of anoxic layer to carry out denitrification using volatile fatty acid, solve Microbial denitrogenation under cryogenic conditions
The problem of activity is low, effectively solve the problems, such as low-temperature sewage denitrogenation in addition, the soluble organic nitrogen of sewage disposal plant effluent,
The concentration of ammonia nitrogen and total nitrogen reduces, and effluent quality is more excellent.
In addition, applicant of the present invention is thought from particle diameter, the particle diameter of rice husk charcoal is more than rice bran charcoal, more
Easily form aerobic particle mud；From structural strength, the structural strength of rice husk charcoal is also above rice bran charcoal, in sewage
Under the conditions of the high water-base fluid for the treatment of plant, the material of strong structural strength is more easy to maintain the stability of aerobic particle mud structure；Rice
Chaff still has certain nutritive value, can be eaten as feed to domestic animal；But rice husk is entirely solid waste, can only returning to the field,
More meet the theory of the treatment of wastes with processes of wastes against one another using rice husk, this is also to consider from financial cost；From formed aerobic particle mud when
Between on, faster, the startup time of reactor is faster for the bigger rice husk charcoal of specific surface area；From treatment effect, size is bigger
Rice husk charcoal formed aerobic particle mud anaerobism and anoxic stratum proportion it is bigger, the effect of denitrogenation is more preferable, the place of reactor
It is more preferable to manage effect.
Embodiment 1
The cultural method of the aerobic particle mud of high denitrification ability, is comprised the following steps that under a kind of low temperature of the present invention：
(a) the cotton-shaped activity dirt of inoculation is added to aerobic granular sludge reactor R1, R2 and R3 under 5 DEG C of cryogenic conditions
Mud, sludge concentration are 3000mg/L, are stirred and are aerated, dissolved oxygen concentration 5-6mg/L, make the cotton-shaped activated sludge of inoculation
Reach the state being thoroughly mixed；
(b) added respectively into first reactor R1 and rice husk biology is added in coconut husk charcoal, second reactor R2
Bamboo charcoal is added in charcoal, the 3rd reactor R3, the concentration of coconut husk charcoal, rice husk charcoal and bamboo charcoal is
500mg/L, after carrying out stirring and the aeration of 24 hours, stand reactor R1, R2 and R3；
First reactor R1 discharge is suspended in a small amount of coconut husk charcoal on the water surface, is added into reactor R1 organic negative
Lotus 1.6-2.0kg/ (m3D) simulated domestic wastewater, after carrying out stirring and the aeration of 24 hours, reactor R1, discharge are stood
It is deposited in the cotton-shaped activated sludge on coconut husk charcoal upper strata；
Second reactor R2 discharge is suspended in a small amount of rice husk charcoal on the water surface, is added into reactor R2 organic negative
Lotus 1.6-2.0kg/ (m3D) simulated domestic wastewater, after carrying out stirring and the aeration of 24 hours, reactor R2, discharge are stood
It is deposited in the cotton-shaped activated sludge on rice husk charcoal upper strata；
3rd reactor R3 discharge is suspended in a small amount of bamboo charcoal on the water surface, is added into reactor R3 organic negative
Lotus 1.6-2.0kg/ (m3D) simulated domestic wastewater, after carrying out stirring and the aeration of 24 hours, reactor R3, discharge are stood
It is deposited in the cotton-shaped activated sludge on bamboo charcoal upper strata；
(c) reactor R1, R2 and R3 are directed to, subsequent processing steps are consistent, are adhered to cotton-shaped above aerobic particle mud
Activated sludge can produce new cotton-shaped activated sludge, new caused cotton-shaped activated sludge constantly be discharged by mud discharging mouth, in activity
After sludge acclimatization 10 days, add actual sanitary sewage and handled, gradually reduce into water organic loading to 0.8kg/ (m3·
D), C/N ratios are adjusted to 100: 5 by additional glucose, hydraulic detention time 12h, Dissolved Oxygen concentration Control in 5mg/L, up to
After to stable state (ammonia nitrogen removal frank ＞ 80%), simulated domestic wastewater is gradually reduced to being added without, and is formed to obtain aerobic
Granule sludge, as shown in Figure 2, Figure 3 and Figure 4.
Handled by above step, add the reactor R2 of rice husk charcoal operational excellence under cryogenic, water outlet ammonia
Nitrogen concentration is 3.3-3.5mg/L, and water outlet total nitrogen is 11.1-11.5mg/L.In the case of adding equal quality, compared to adding it
The reactor R1 and R3 of allogene charcoal, the present invention, which adds rice husk charcoal reactor R2, can reduce water outlet ammonia nitrogen at least 16%
Water outlet total nitrogen at least 20% can be reduced simultaneously, contrast situation is shown in Table 1.
The culture apparatus cold operation situation for the aerobic particle mud that the variety classes charcoal of table 1 is formed
Embodiment 2
In the present embodiment, the cotton-shaped activated sludge of inoculation that sludge concentration is 4000mg/L has only been added into reactor R4,
The rice husk charcoal for being inoculated with cotton-shaped activated sludge and 1000mg/L that sludge concentration is 4000mg/L has been added in reactor R5.
(a) under 15 DEG C of cryogenic conditions, cotton-shaped activated sludge is inoculated with to reactor R4 and R5, sludge concentration is
4000mg/L, it is stirred and is aerated, dissolved oxygen concentration 5-6mg/L, cotton-shaped activated sludge is reached the state being thoroughly mixed；
(b) any charcoal is not added in the 4th reactor R4,1000mg/L rice is added in the 5th reactor R5
Shell charcoal, after carrying out stirring and the aeration of 24 hours, stand reactor R4 and R5；
Organic loading 1.6-2.0kg/ (m are added into the 4th reactor R43D) simulated domestic wastewater, 24 are carried out
After the stirring of hour and aeration, reactor R4 is stood；
5th reactor R5 discharge is suspended in a small amount of rice husk charcoal on the water surface；Added into reactor R5 organic negative
Lotus 1.6-2.0kg/ (m3d) simulated domestic wastewater, after carrying out stirring and the aeration of 24 hours, stand reactor R5, discharge
It is deposited in the cotton-shaped activated sludge on rice husk charcoal upper strata；
(c) reactor R5 is directed to, the cotton-shaped activated sludge being adhered to above aerobic particle mud can produce new cotton-shaped work
Property sludge, constantly discharged by mud discharging mouth it is new caused by cotton-shaped activated sludge, after activated sludge acclimatization 10 days, add actual
Sanitary sewage is handled, and is gradually reduced into water organic loading to 0.8kg/ (m3D), C/N ratios are adjusted by additional glucose
To 100: 5, hydraulic detention time 12h, Dissolved Oxygen concentration Control is in the 5.5mg/L, (ammonia nitrogen removal frank after stable state is reached
＞ 80%), simulated domestic wastewater is gradually reduced to being added without；For reactor R4 after activated sludge acclimatization 10 days, add real
The sanitary sewage on border is handled, and is gradually reduced into water organic loading to 0.8kg/ (m3D), hydraulic detention time 12h, up to
After to stable state (ammonia nitrogen removal frank ＞ 80%), simulated domestic wastewater is gradually reduced to being added without.
Handled by above step, add the reactor R5 of rice husk charcoal operational excellence under cryogenic, water outlet ammonia
Nitrogen concentration is 0.23-0.55mg/L, and water outlet total nitrogen is 4.85-5.49mg/L.Compared to the reactor R4 of cotton-shaped activated sludge, sheet
Invention, which is added while rice husk charcoal reactor R5 can reduce water outlet ammonia nitrogen at least 77%, can reduce water outlet total nitrogen at least
66%, contrast situation is shown in Table 2.Further according to Fig. 5 and Fig. 6 comparison, the egg added in the aerobic particle mud water outlet of charcoal
White class material and humic acid material are relatively low, and the dissolubility that can also prove in the aerobic particle mud water outlet for adding charcoal is organic
The content of nitrogen is less.
Table 2 is using rice husk charcoal and does not utilize and to form the culture apparatus cold operation situation of aerobic particle mud
Embodiment 3
In the present embodiment, the anaerobic grain activated sludge that sludge concentration is 4000mg/L, reaction have been added in reactor R6
Sludge concentration has been added in device R7 as 4000mg/L aerobic activated sludge and 700mg/L rice husk charcoal.
(a) under 10 DEG C of cryogenic conditions, inoculation anaerobic grain activated sludge is added to reactor R6, is thrown to reactor R7
Adjunction kind aerobic activated sludge, sludge concentration are 4000mg/L, are stirred and are aerated, and dissolved oxygen concentration 5-6mg/L, are made
Activated sludge reaches the state being thoroughly mixed；
(b) any charcoal is not added in the 6th reactor R6, has only added 700mg/L's in the 7th reactor R7
Rice husk charcoal, after carrying out stirring and the aeration of 24 hours, stand reactor R6 and R7；
Organic loading 1.6-2.0kg/ (m are added into reactor R63D) simulated domestic wastewater, 24h stirring is carried out
After aeration, reactor R6 is stood；
7th reactor R7 discharge is suspended in a small amount of rice husk charcoal on the water surface；Added into reactor R7 organic negative
Lotus 1.6-2.0kg/ (m3D) simulated domestic wastewater, after the stirring and the aeration that carry out 24h, reactor R7, discharge sedimentation are stood
Cotton-shaped activated sludge on rice husk charcoal upper strata；
(c) reactor R6 is directed to, after activated sludge acclimatization 10 days, actual sanitary sewage is added and is handled, progressively
Water inlet organic loading is reduced to 0.8kg/ (m3D), additional glucose regulation C/N ratios to 100: 5, hydraulic detention time are passed through
12h, Dissolved Oxygen concentration Control is in 6mg/L, after stable state is reached (ammonia nitrogen removal frank ＞ 80%), gradually reduces simulation life
Sewage living is to being added without；For reactor R7, the cotton-shaped activated sludge being adhered to above aerobic particle mud can produce new wadding
Shape activated sludge, new caused cotton-shaped activated sludge is constantly discharged by mud discharging mouth, after activated sludge acclimatization 10 days, added real
The sanitary sewage on border is handled, and is gradually reduced into water organic loading to 0.8kg/ (m3D), hydraulic detention time 12h, up to
After to stable state (ammonia nitrogen removal frank ＞ 80%), simulated domestic wastewater is gradually reduced to being added without.
Table 3 utilizes the culture apparatus cold operation situation of the aerobic particle mud of separate sources
The source of two kinds of aerobic particle muds is transformed from anaerobic grain sludge and by rice husk charcoal shape respectively
Into by comparing, adding reactor R7 shorter (＜ 30 days), the denitrogenations that start the time under cryogenic of rice husk charcoal
Effect is more preferable, and water outlet ammonia nitrogen concentration is 0.64-0.77mg/L, and water outlet total nitrogen is 7.63-8.15mg/L.Compared to by anaerobic grain
The reactor R6 of the aerobic particle mud of sludge conversion, when the reactor R7 that the present invention adds rice husk charcoal reduces startup
Between, reduce the concentration of the water outlet soluble organic nitrogen of reactor R7 under low temperature, ammonia nitrogen and nitrate nitrogen.Further according to Fig. 5 and Fig. 7
Comparison, the protein matter and humic acid material added in the aerobic particle mud water outlet of charcoal is relatively low, can also prove
The content of the soluble organic nitrogen added in the aerobic particle mud water outlet of charcoal is less.
Schematically the invention and embodiment are described above, this describe it is no restricted, in accompanying drawing
Shown is also one of embodiment of the invention, and actual structure is not limited thereto.If so this area
Those of ordinary skill is enlightened, and in the case where not departing from this creation objective, creates the frame mode similar to the patent
And embodiment, the protection domain of this patent all should be belonged to.
Claims (10)
1. the culture apparatus of the aerobic particle mud of high denitrification ability under a kind of low temperature, it is characterised in that the device includes aerobic
Granular sludge reactor (3) and water supplying unit, aerobic granular sludge reactor (3) upper end are provided with water inlet, aerobic grain
Cotton-shaped activated sludge and rice husk charcoal are filled with sewage sludge reactor (3), the water supplying unit includes water inlet pipe (1), water inlet
The head that pump (2) and water inlet pipe (1) are provided with pipe (1) is stretched into aerobic granular sludge reactor (3) by water inlet, causes work
Sewage enters aerobic granular sludge reactor (3).
2. according to claim 1 under low temperature the aerobic particle mud of high denitrification ability culture apparatus, it is characterised in that institute
State and be provided with discharge outlet (4) and mud discharging mouth (7) in aerobic granular sludge reactor (3) side wall.
3. according to claim 2 under low temperature the aerobic particle mud of high denitrification ability culture apparatus, it is characterised in that should
Device also includes agitating unit, the agitating shaft and agitating paddle that the agitating unit includes power part, is connected with power part
(6), agitating shaft is arranged in water inlet pipe and extends downward into aerobic granular sludge reactor (3) bottom, and agitating paddle (6) is fixed on
The lower end of agitating shaft, power is exported by power part and is transferred to agitating paddle (6).
4. according to claim 1 under low temperature the aerobic particle mud of high denitrification ability culture apparatus, it is characterised in that should
Device also includes aeration unit (9), and the aeration unit (9) is arranged on bottom centre and the position that aerobic particle mud answers device (3)
Below agitating paddle (6).
5. according to claim 1 under low temperature the aerobic particle mud of high denitrification ability culture apparatus, it is characterised in that should
Device also includes dissolved oxygen meter (8), and dissolved oxygen meter (8) includes controller and test bar, and both are connected by wire,
Test bar is placed in aerobic granular sludge reactor (3).
6. according to claim 1 under low temperature the aerobic particle mud of high denitrification ability culture apparatus, it is characterised in that institute
The concentration for stating cotton-shaped activated sludge is 3000-4000mg/L.
7. according to claim 1 under low temperature the aerobic particle mud of high denitrification ability culture apparatus, it is characterised in that institute
The concentration for stating rice husk charcoal is 500-1000mg/L.
8. the cultural method of the aerobic particle mud of high denitrification ability under a kind of low temperature, it is characterised in that comprise the following steps that：
(a) under 4-15 DEG C of cryogenic conditions, the cotton-shaped activated sludge of inoculation is added to aerobic granular sludge reactor (3), is carried out
Stirring and Air Exposure, make cotton-shaped activated sludge reach the state being thoroughly mixed；
(b) rice husk charcoal is added into aerobic granular sludge reactor (3), after carrying out stirring and the aeration of 24 hours, is stood,
Discharge is suspended in a small amount of rice husk charcoal on the water surface；Organic loading 1.6- is added into aerobic granular sludge reactor (3)
2.0kg/(m3D) simulated domestic wastewater, after carrying out stirring and the aeration of 24 hours, stand, discharge is deposited in rice husk biology
The cotton-shaped activated sludge on charcoal upper strata；
(c) the cotton-shaped activated sludge being adhered to above aerobic particle mud can produce new cotton-shaped activated sludge, pass through mud discharging mouth
The constantly new caused cotton-shaped activated sludge of discharge, after domestication 30 days, adds actual sanitary sewage and is handled, gradually reduced
Organic loading intake to 0.6-0.8kg/ (m3D), additional glucose regulation C/N ratios to 100: 5, hydraulic detention time are passed through
12h, Dissolved Oxygen concentration Control is in 5-6mg/L, after stable state is reached, gradually reduces simulated domestic wastewater to being added without,
Form aerobic particle mud.
9. the cultural method of the aerobic particle mud of high denitrification ability under low temperature according to claim 8, it is characterised in that
It is 3000-4000mg/L to add the concentration of cotton-shaped activated sludge to aerobic granular sludge reactor (3) in described step (a)；
The concentration for adding rice husk charcoal in described step (b) into aerobic granular sludge reactor (3) is 500-1000mg/L.
10. the aerobic particle mud that a kind of cultural method according to claim 8 or claim 9 obtains, using rice husk charcoal as
Core, suitable for being handled under 4-15 DEG C of cryogenic conditions domestic sewage denitrifying.
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Cited By (3)
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| CN113233579A (en) * | 2021-04-19 | 2021-08-10 | 西安建筑科技大学 | Strengthening method and device for aerobic sludge granulation |
| CN114275883A (en) * | 2021-12-24 | 2022-04-05 | 江苏丰又环境科技有限公司 | Granular sludge generator and granular sludge culture method |
| CN115784430A (en) * | 2022-12-07 | 2023-03-14 | 华夏碧水环保科技股份有限公司 | Rapid co-culture method of aerobic granular sludge and biological carrier |
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| CN105417689A (en) * | 2015-11-06 | 2016-03-23 | 南京理工大学 | Method for accelerating aerobic sludge granulation by aid of charcoal |
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| CN101555068B (en) * | 2009-04-17 | 2011-05-11 | 北京工业大学 | Culture method of aerobic granular sludge for simultaneous denitrification and dephosphorization of domestic sewage at low and normal temperature |
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| CN113233579A (en) * | 2021-04-19 | 2021-08-10 | 西安建筑科技大学 | Strengthening method and device for aerobic sludge granulation |
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