CN105923765B - A kind of quick start method of anaerobic ammonia oxidation reactor - Google Patents
A kind of quick start method of anaerobic ammonia oxidation reactor Download PDFInfo
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- CN105923765B CN105923765B CN201610522945.9A CN201610522945A CN105923765B CN 105923765 B CN105923765 B CN 105923765B CN 201610522945 A CN201610522945 A CN 201610522945A CN 105923765 B CN105923765 B CN 105923765B
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- bioreactor
- dynamic membrane
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
Abstract
The invention discloses a kind of quick start methods of anaerobic ammonia oxidation reactor, using bioreactor of dynamic membrane, using aerobic sludge and/or anaerobic sludge as inoculum, control influent ammonia nitrogen and nitrite nitrogen concentration, add nutritive solution, it is discharged by dynamic membrane filtering, reactor continuous operation at least 30 days or more, it can be achieved that the quick of anaerobic ammonia oxidizing bacteria is tamed and be enriched in bioreactor.The present invention is suitable for the Anammox denitrogenation processing of municipal sewage and industrial wastewater, has many advantages, such as that fast starting, treatment effeciency height, system run all right, outlet effect are good, at low cost.
Description
One, technical field
The present invention relates to a kind of quick start methods of anaerobic ammonia oxidation reactor, belong to sewage water denitrification process field.
Two, background technique
Ammonia nitrogen has become one of the binding indicator of pollution reduction in China's water environment, how efficiently to cut down ammonia nitrogen row
It is high-volume the significant challenge that China's water environment protection faces.Traditional biological denitrification process is with nitration denitrification denitrogenation technology path
Based on, but the problems such as its generally existing energy consumption is high, nitric efficiency is low, carbon source is insufficient.In recent years, with Anammox denitrogenation way
The discovery of diameter, anaerobic ammonia oxidation process is due to its unique low energy consumption, efficient denitrification the characteristics of by lot of domestic and international scholar's
Concern.External sewage enterprise has successfully realized the development and application of the biological denitrification process based on Anammox, to solve
The problems such as carbon-nitrogen ratio that China's municipal sewage treatment faces is low, energy consumption is high, denitrifying carbon source demand is big brings dawn.
Anammox (Anaerobic Ammonium Oxidation, abbreviation Anammox) refers in anaerobism or lacks
Under the conditions of oxygen, anaerobic ammonium oxidizing bacteria is with NO2 -- N is electron acceptor, aoxidizes NH4 +- N is the bioprocess of nitrogen.Influence anaerobism
The factor of ammoxidation reaction mainly has temperature, pH value, dissolved oxygen etc..Anammox, which has, is not necessarily to additional carbon, nitric efficiency
The high, advantages such as low energy consumption, at low cost, sludge yield is low.Compared with traditional nitration denitrification denitrogenation technique, which can be reduced
60% oxygen, 100% organic carbon source and 90% operating cost.In terms of bio-denitrifying sewage, especially in low-carbon
Under the conditions of nitrogen ratio, which is with a wide range of applications.But there is also many problems, such as anaerobism for anaerobic ammonia oxidation process
The growth rate of ammonia oxidation bacteria is slow, generation time is long, inoculation mud source is insufficient and expensive, since technique starts period mistake
It is long, it is difficult to apply in practical projects under conditions of the inoculation of no anaerobic ammonia oxidizing bacteria.It is inoculated with conventional activated sludge merely
Anammox reactor generally require and can be only achieved within 100-200 days higher ammonia nitrogen loading rate and removal rate, First in the world
The Anammox reactor of engineer application have passed through and just realize stable operation more than 3 years.Therefore, how quick start Anammox
Reactor becomes current hot research problem.
Three, summary of the invention
For the drawback that the Anammox denitrification process starting time is long, the object of the present invention is to provide a kind of anaerobism ammonia oxygen
Change the quick start method of reactor.
The quick start method of anaerobic ammonia oxidation reactor of the present invention, using bioreactor of dynamic membrane, the reactor packet
Bioreactor and Dynamic Membrane two parts are included, using aerobic sludge and/or anaerobic sludge as inoculum, controls influent ammonia nitrogen and Asia
Nitrate nitrogen concentration, adds nutritive solution, is discharged by dynamic membrane filtering, reactor continuous operation at least 30 days or more, can be real
The quick domestication and enrichment of anaerobic ammonia oxidizing bacteria, specifically comprise the following steps: in existing bioreactor
(1) reactor design
Using bioreactor of dynamic membrane, including bioreactor and Dynamic Membrane two parts, Dynamic Membrane is set to biological anti-
It answers inside or outside device, the outer water pump of Dynamic Membrane makes sewage flow out bioreactor by Dynamic Membrane by swabbing action；
The Dynamic Membrane is made of macropore grid material, is cylindrical tube or tabular, using cross-flow filtration or dead end mistake
The mode of filter, the Membrane Filtration Flux of Dynamic Membrane are 1-200L/ (m2﹒ h)；
The macropore grid material can choose stainless steel steel wire, wire netting, copper mesh, aluminium wire netting, nylon wire, nonwoven
The materials such as cloth；The aperture of the macropore grid material is 10-1000 μm；
The bioreactor be conventional reactor configuration, including complete mix flow, horizontal plug flow reactor,
Mix flow reactor, upflow-type reactor, drop flow reactor, sequencing batch reactor etc., such as CSTR reactor, UASB reaction
Device, sbr reactor device, folded plate reactor, fluidized bed or moving-burden bed reactor.
(2) seed sludge
The aerobic sludge and/or anaerobic sludge of inoculation sewage treatment plant in bioreactor, seed sludge concentration are 0.5-
Ratio is any when 30gMLSS/L and 0.1-25g MLVSS/L, aerobic sludge and anaerobic sludge combined inoculation.
(3) state modulator
Flooding parameter control: ammonia nitrogen concentration is 1-1000mg/L in water inlet, nitrite nitrogen concentration is 0.1-1000mg/L,
Wherein the ratio between ammonia nitrogen and nitrite nitrogen concentration are 10:1-1:10.Inflow temperature is 10-60 DEG C, pH value 6-9, unlimited to be formed with
Machine object concentration.Nutritive solution is added in water inlet.
The control of bioreactor operating parameter: hydraulic detention time is -10 days 0.1 hour, and dissolved oxygen concentration range is 0-
0.5mg/L, temperature of reactor are controlled at 10-60 DEG C；The volume ratio range of circulating pump backflow water yield and amount of inlet water is 0:1-
1000:1；Dynamic Membrane is using waterpower cleaning, purge of gas, chemical cleaning or not cleaning model operation, when transmembrane pressure difference is 30-
Start cleaning model operation when 50kPa.
Nutritive solution is added in water inlet, specifically adds concentration in nutritive solution composition and water inlet are as follows: KH2PO4(0-
2000mg/L), MgSO4(0-500mg/L), CaCl2(0-500mg/L), EDTA (0-500mg/L), FeSO4(0-500mg/L),
ZnSO4(0-100mg/L), CuSO4(0-100mg/L), NiCl (0-100mg/L), H3BO4(0-100mg/L), CoCl2(0-
100mg/L), MnCl2(0-100mg/L), NaMoO4(0-100mg/L), NaSeO4(0-100mg/L), biotin (0-1000mg/
L).The nutritive solution can also be substituted using the sewage rich in above-mentioned minor metallic element concentration.Trace meter in nutritive solution
Element is the essential component and confactor that anaerobic ammonia oxidizing bacteria endocellular enzyme is formed, it can not only promote flora to evolve, also exist
It plays an important role in terms of adjusting microbe infiltration pressure and acid-base balance.It adds nutritive solution and helps speed up anaerobism in sludge
The screening and growth of ammonia oxidation bacteria, so as to shorten the starting time of anaerobic ammonia oxidation reactor.
(4) operating process
The bioreactor of Dynamic Membrane and inoculation of activated-sludge that macropore grid material is constituted is overlapped to form the circulatory system, is returned
Stream pump provides circulation power；Under conditions of anaerobism, being protected from light, sewage enters bioreactor under the action of intake pump and is connected
Continuous culture, circulates part of contaminated water in the bioreactor, and in the swabbing action of water outlet pump
Lower sewage is flowed out by dynamic membrane filtering.When water outlet ammonia nitrogen concentration is lower than " urban wastewater treatment firm pollutant emission standard (GB
18918-2002) " level-one A standard (NH3- N≤5mg/L), and ammonia nitrogen removal frank is not less than 90%, shows that Anammox reacts
Device successfully starts up.
Compared with the prior art, the beneficial effects of the present invention are embodied in:
1, solve the problems, such as that traditional anaerobic ammonia oxidation reactor starting time is long
Bioreactor of dynamic membrane is as Anammox starter, the macropore grid material that aperture is 10-1000 μm
Physical entrapment and waterpower screening effect are played to microbe inoculation, provide suitable environment for the growth of anaerobic ammonia oxidizing bacteria,
The separation that can be realized bioreactor sludge age and hydraulic detention time is conducive to the fast of the anaerobic ammonia oxidizing bacteria of slow growth
Speed domestication and enrichment.Using dynamic membrane device, promotes the growth and retention of anaerobic ammonia oxidizing bacteria in the bioreactor, accelerate to detest
The starting of anaerobic ammonium oxidation reactor.
2, inoculum source needed for anaerobic ammonia oxidation reactor is solved the problems, such as
Anaerobic ammonia oxidizing bacteria growth rate is slow, low sludge yield is always the weight for restricting anaerobic ammonia oxidation process practical application
Want factor.By the coupling of bioreactor and Dynamic Membrane, make full use of bioreactor hydraulic characteristic and superior bacterium
Body interception capacity, and specific nutritive solution is added, aerobic sludge or anaerobic sludge can be enable quickly to be tamed, make to detest
Anaerobic ammonium oxidation flora can obtain efficiently concentrating, and can effectively reduce the stream of sludge in anaerobic ammonia oxidation reactor start-up course
It loses, improves sludge yield.This method is by adding specific nutritive solution, so that anaerobic ammonia oxidation reactor connects in practical application
Kind aerobic sludge or anaerobic sludge or both mixing is possibly realized as inoculum, and productivity anaerobism ammonia oxygen can be greatly shortened
Disguise the starting time set and reduce cost, expands the application range of Anammox technology.
3, the technology stability of anaerobic ammonia oxidation reactor is enhanced
For the weak characteristic of anaerobic ammonia oxidizing bacteria impact resistance, bioreactor of dynamic membrane is reacted as Anammox
The crown_interception of device, Dynamic Membrane can be avoided the loss of microbial biomass；Pass through the cut-off filter effect of Dynamic Membrane and process cycles, dilution
Flow condition reduces influent load, the impact that reduction influent quality and water run anaerobic ammonia oxidation reactor.
4, anaerobic ammonia oxidation reactor denitrogenation processing ability is improved
Bioreactor of dynamic membrane is the mixed growth type reactor for having both attachment and suspension microorganism, passes through Dynamic Membrane
The mud-water separation of bioreactor may be implemented in cut-off filter function, guarantees there is enough anaerobic ammonia oxidizing bacteria quantity in reactor.It is logical
The synergy of the anaerobic ammonia oxidizing bacteria of inside bioreactor and dynamic film surface is crossed, Anammox reaction in waste water is improved
Effect, improve the volumetric loading rate of anaerobic ammonia oxidation reactor.
Four, Detailed description of the invention
Fig. 1 is reactor schematic diagram of the present invention, including water inlet, intake pump, bioreactor, Dynamic Membrane, circulating pump, water outlet
Pump, water outlet.
Fig. 2 is the variation diagram of ammonia-nitrogen content and its removal rate in reactor Inlet and outlet water.
Fig. 3 is the variation diagram of reactor Inlet and outlet water Central Asia nitrate nitrogen content and its removal rate.
Five, specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
1, implement to summarize
Using bioreactor of dynamic membrane as reaction unit, using anaerobic activated sludge as inoculum, in anaerobism shading
In the case where continuous operation, be passed through nitrogenous effluent, domestication and culture anaerobic ammonia oxidizing bacteria, to remove ammonia nitrogen in waste water.By 32
It operation, through anaerobic ammonia oxidation reactor, treated that effluent quality is as follows: NH4 +- N≤1.5mg/L, removal rate up to 95% with
On；NO2 -- N≤1mg/L, removal rate successfully realize the quick start of anaerobic ammonia oxidation reactor up to 98% or more.
2, reactor design
Anaerobic ammonia oxidation reactor is the combination of external Dynamic Membrane and bioreactor, and the outer water pump of Dynamic Membrane passes through
Swabbing action makes sewage flow out bioreactor by Dynamic Membrane.In confined conditions, waste water enters anti-under pumping action of intaking
Device is answered to carry out continuous culture starting.Under the swabbing action of water outlet pump, a part of water is flowed out by dynamic membrane filtering, remaining water
Bioreactor is flowed back by circulating pump.Bioreactor is mixing flow reactor, is made by organic glass, section is square
Shape, dischargeable capacity 4.2L.It is 100 μm of stainless steel steel wire as chimney filter that Dynamic Membrane, which uses aperture, and the film filtering of Dynamic Membrane is logical
Amount is 1.0-3.0L/ (m2﹒ h).
3, seed sludge
The anaerobic activated sludge of Hefei City, Anhui Province sewage treatment plant is chosen as kind of a mud, is inoculated with sludge in post-reactor
Concentration 14.3g MLSS/L and 8g MLVSS/L.
4, state modulator
Flooding parameter control: NH in water inlet4 +- N concentration is 50-60mg/L, NO2 -- N concentration is 50-70mg/L, and pH value is
7.0-8.5 adds nutritive solution in water inlet, specifically adds concentration such as the following table 1 in microelement component and water inlet in nutritive solution
It is shown.
Table 1
The control of bioreactor operating parameter: reactor is covered with inhibition of the black cloth to avoid illumination to anaerobic ammonia oxidizing bacteria,
Continuous operation mode is used, in the case where strictly anaerobic is protected from light to keep stable water inlet substrate concentration and advantageous growth item
Part.Reactor hydraulic detention time is 24-48h, and dissolved oxygen concentration range is 0-0.5mg/L, and temperature maintains 35 ± 1 DEG C.It follows
The volume ratio of ring blowback streamflow and amount of inlet water is 500:1-1000:1；The transmembrane pressure difference of Dynamic Membrane is lower than 30kPa, uses
Cleaning model is not run.
5, operation result: the effluent quality result of bioreactor startup stage is as shown in Figure 2 and Figure 3.The results show that anti-
When device being answered to run 23 days, the removal rate of ammonia nitrogen and nitrite nitrogen respectively reaches 95% and 85% or more；When reactor is run 37 days,
Ammonia nitrogen and nitrite nitrogen removal rate reach 95% or more, indicate that anaerobic ammonia oxidation reactor starts successfully.
Claims (1)
1. a kind of quick start method of anaerobic ammonia oxidation reactor, it is characterised in that: bioreactor of dynamic membrane is used, with good
Oxygen sludge and/or anaerobic sludge control influent ammonia nitrogen and nitrite nitrogen concentration, add nutritive solution, pass through as inoculum
Dynamic membrane filtering water outlet, reactor continuous operation at least 30 days or more, it can be achieved that in bioreactor anaerobic ammonia oxidizing bacteria it is fast
Speed domestication and enrichment, specifically comprise the following steps:
(1) reactor design
Bioreactor is set to using bioreactor of dynamic membrane, including bioreactor and Dynamic Membrane two parts, Dynamic Membrane
Internal or external, the outer water pump of Dynamic Membrane makes sewage flow out bioreactor by Dynamic Membrane by swabbing action；
(2) seed sludge
The aerobic sludge and/or anaerobic sludge of inoculation sewage treatment plant in bioreactor, seed sludge concentration are 0.5-30g
Ratio is any when MLSS/L and 0.1-25g MLVSS/L, aerobic sludge and anaerobic sludge combined inoculation；
(3) state modulator
Flooding parameter control: NH in water inlet4 +- N concentration is 50-60mg/L, NO2 -- N concentration is 50-70mg/L, and inflow temperature is
10-60 DEG C, pH value 7.0-8.5；
The control of bioreactor operating parameter: hydraulic detention time is -10 days 0.1 hour, and dissolved oxygen concentration range is 0-
0.5mg/L, temperature of reactor are controlled at 10-60 DEG C；
(4) operating process
The bioreactor of Dynamic Membrane and inoculation of activated-sludge that macropore grid material is constituted is overlapped to form the circulatory system, reflux pump
Circulation power is provided；Under conditions of anaerobism, being protected from light, sewage enters bioreactor under the action of intake pump and is continuously trained
It supports, circulates part of contaminated water in the bioreactor, and is dirty under the swabbing action of water outlet pump
Water is flowed out by dynamic membrane filtering, as water outlet ammonia nitrogen concentration NH4 +- N≤5mg/L and ammonia nitrogen removal frank are not less than 90%, show to detest
Anaerobic ammonium oxidation reactor successfully starts up；
The Dynamic Membrane is made of macropore grid material, is cylindrical tube or tabular, using cross-flow filtration or dead-end filtration
Mode, the Membrane Filtration Flux of Dynamic Membrane are 1-200 L/ (m2·h)；The macropore grid material is stainless steel steel wire, iron wire
Net, copper mesh, aluminium wire netting, nylon wire or nonwoven cloth material；The aperture of the macropore grid material is 10-1000 μm；
Nutritive solution is added in water inlet, specifically adds concentration in nutritive solution composition and water inlet are as follows:
Circulating pump backflow water yield and the volume ratio of amount of inlet water are 500:1-1000:1.
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| CN107236682A (en) * | 2017-05-03 | 2017-10-10 | 南阳师范学院 | The Enrichment culture method of anaerobic ammonium oxidation sludge strain |
| TR201716297A2 (en) * | 2017-10-23 | 2019-05-21 | Tuerkiye Bilimsel Ve Teknolojik Arastirma Kurumu Tuebitak | |
| CN108192839A (en) * | 2018-01-08 | 2018-06-22 | 东华理工大学 | The culture substrate and its cultural method of a kind of anaerobic ammonia oxidizing bacteria |
| CN108217937A (en) * | 2018-02-28 | 2018-06-29 | 西安建筑科技大学 | The device for rapidly starting and method of a kind of anaerobic ammonia oxidation process |
| CN111422993B (en) * | 2020-03-12 | 2022-08-23 | 广东工业大学 | Method for rapidly starting autotrophic ammonia oxidation by using heterotrophic denitrification granular sludge |
| CN111547842A (en) * | 2020-05-21 | 2020-08-18 | 清华大学 | Method for establishing high-quality anaerobic ammonia oxidation biological membrane |
| CN112723537A (en) * | 2020-12-30 | 2021-04-30 | 吉林化工学院 | Culture method of low-temperature anaerobic sludge |
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| JP2003024985A (en) * | 2001-07-18 | 2003-01-28 | Kurita Water Ind Ltd | Dentrification apparatus and dentrification method |
| CN101704576A (en) * | 2009-11-13 | 2010-05-12 | 江南大学 | Method for realizing synchronous denitrification in membrane bioreactor |
| CN103359827A (en) * | 2013-08-14 | 2013-10-23 | 哈尔滨工业大学 | Fast starting method of MBR (Membrane bioreactor) autotrophic nitrogen removal technique, and method for synchronously removing carbonic nitrogen in domestic sewage by utilizing same |
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| JP2003024985A (en) * | 2001-07-18 | 2003-01-28 | Kurita Water Ind Ltd | Dentrification apparatus and dentrification method |
| CN101704576A (en) * | 2009-11-13 | 2010-05-12 | 江南大学 | Method for realizing synchronous denitrification in membrane bioreactor |
| CN103359827A (en) * | 2013-08-14 | 2013-10-23 | 哈尔滨工业大学 | Fast starting method of MBR (Membrane bioreactor) autotrophic nitrogen removal technique, and method for synchronously removing carbonic nitrogen in domestic sewage by utilizing same |
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