CN108408897A - The intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously - Google Patents
The intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
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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
- C02F2101/105—Phosphorus compounds
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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
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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
- C02F2101/30—Organic compounds
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/001—Runoff or storm water
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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
- C02F2209/18—PO4-P
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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
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Abstract
The intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously, belongs to field of biological sewage treatment.1. former sanitary sewage pump is entered 2 in integrated reactor, to take periodically first anoxia stirring 22min, then low-oxygen aeration 8min, dissolved oxygen be 0.8 1.2mg/L to intermittent aerating process, altogether 11 periods of intermittent aerating；3, it is discharged after precipitating, hydraulic detention time each cycle 6h, floc sludge age is 30 50d.It is different for intermittent aerating sensibility with nitrite oxidizing bacteria (NOB) that ammonia oxidation bacteria (AOB) is utilized in this method so that AOB has the advantage strain status；The long-term maintenance of AOB dominant bacterias status is furthermore achieved in the control of low-oxygen aeration time and sludge age.Simultaneously because being directly accessed former sanitary sewage, the period of intermittent aerating is long, realizes that the zero of outer carbon source adds and advanced nitrogen dephosphorization.The present invention has many advantages, such as that controlling accurate, zero carbon source adds, the dephosphorization simultaneously of short distance nitration Anammox.
Description
Technical field
The present invention relates to a kind of intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously,
Belong to technical field of biological sewage treatment.
Background technology
Since current body eutrophication phenomenon is serious, many sewage treatment plants are all proposing mark transformation, are discharged total nitrogen
The index of total phosphorus more stringent.Just there is an urgent need for what energy-efficient denitrification dephosphorization technique put into sewage plant to put forward mark improvement project for this
In the middle.What current most of sewage treatment plants were runed also according to the pattern of traditional AAO or oxidation ditch, water outlet is total
Nitrogen total phosphorus is difficult up to standard, also faces city domestic sewage low temperature, low energy and many obstacles such as water is big.Simultaneously at sewage
Reason belongs to energy consumption intensity industry, on the one hand high energy consumption causes cost of sewage disposal to increase, exacerbates China to a certain extent and work as
Preceding energy crisis, high disposal cost caused by another aspect high energy consumption, causes some middle or small sewage treatments to be difficult to normally
Operation, the emission reduction benefit of sewage treatment plant cannot be played normally.Therefore, it is possible to make full use of the carbon source in city domestic sewage
Carrying out high-efficient denitrification and dephosphorization without additional carbon becomes the target that sewage treatment field is chased.
The new technology of current depth denitrogenation includes mainly short-cut nitrification and denitrification, synchronous nitration and denitrification, Anammox
Etc. techniques coupling.Nitrobacteria is a kind of chemotrophy type bacterium, includes mainly ammonia oxidizing bacteria (AOB) and nitrite oxygen
Change bacterium (NOB) two class, it can be by NH4 +It is converted into NO2 -、NO2 -It is converted into NO3 -, played not in the denitrification process of sewage
Alternative effect.Short-cut denitrification technology is to control biological nitrification process in the ammoxidation stage, then directly carries out denitrification,
And then realize energy-saving purpose.Short distance nitration is the key that short-cut denitrification technology, and realizes the key of short distance nitration and be
Realize the enrichment of AOB and the inhibition and elutriation of NOB.
The method for being presently used for realizing short distance nitration mainly has high temperature, high ph-values, high concentration free ammonia (FA) and high concentration
Free nitrous acid (FNA), low dissolved oxygen (DO), short sludge age (SRT) and add inhibitor etc..Above short distance nitration realization side
Formula is the environment created a suitable AOB growth in system operation, inhibit or slow down NOB growths, gradually forms AOB
Monopterus albus is more than the short-cut denitrification system of NOB Monopterus albus.However, city domestic sewage often do not have high temperature, high pH value,
High FA and FNA such as inhibit at the environment of control NOB, the means such as can only handle, is biological reinforced by side by the whole nitre in mainstream
Change sludge and is gradually substituted for short distance nitration sludge.Experiment shows individually to control low dissolved oxygen or short sludge age to be also all difficult steady
Surely short distance nitration is realized.It if before system stable operation, can quickly be started by biological reinforced means, promote short distance
The abundance of nitrification and anaerobic ammonia oxidizing bacteria；After starting operation, the real-time control stability contorting of intermittent aerating can be passed through
AOB and NOB populations activity and quantitative difference so that AOB occupies advantage always, in this way will be for the city of the high water of low energy
Domestic sewage advanced denitrogenation provides a brand-new approach.
Biological treatment new technology in terms of current depth dephosphorization includes mainly that enhanced biological phosphorus removal (EBPR) and denitrification remove
Phosphorus etc..PolyP bacteria is mainly utilized in enhanced biological phosphorus removal can not only largely absorb phosphate (PO when aerobic4 3-) synthesize itself core
Acid and ATP, and the inverse concentration gradient of energy excessively inhales the polyphosphoric acids salt particle (i.e. Babes-Ernst bodies) of phosphorus synthesis energy storage in internal, confession
Its endogenous respiration is used, these bacteriums are known as polyP bacteria.PolyP bacteria can discharge phosphate (PO in anaerobism again4 3-) in external, therefore
Anaerobism, anoxic and aerobic environment can be created, allows the polyP bacteria first anaerobic phosphorus release in phosphorous dirty (useless) water, then under aerobic condition
It is fully excessive to inhale phosphorus, part phosphorus is then removed from dirt (useless) water by spoil disposal.And anti-nitre is mainly utilized in denitrification dephosphorization
Changing polyP bacteria (DNPAOs) can be carried out fully using nitrate nitrogen or nitrite nitrogen as electron donor in anaerobic environment
Phosphorus is inhaled, then removes part phosphorus from stain disease by spoil disposal.
The coupling technique of current depth denitrogenation dephosphorizing also has very much, such as AAO-BAF, AAO-BCO, A2The techniques such as N.It is de-
The means of nitrogen dephosphorization are to solve the competition of sludge age and carbon source between nitrobacteria and polyP bacteria, are conducive to polyP bacteria, nitrification
Bacterium respectively becomes dominant bacteria in double sludge systems, realizes advanced nitrogen dephosphorization.And intermittent aerating of the present invention is real-time
The application of control method and screening means in the technique of integrated short distance nitration Anammox dephosphorization simultaneously, can be certainly
Support on the basis of denitrogenation technology using intermittent aerating real-time control method create come ecological environment, make full use of former city
Carbon source in sanitary sewage realizes energy-efficient advanced nitrogen dephosphorization.
Invention content
The purpose of patent of the present invention is to propose a kind of interval of integrated short distance nitration Anammox dephosphorization simultaneously
Aeration pattern real-time control method.Present invention utilizes ammonia oxidizing bacterias and nitrite-oxidizing bacteria under intermittent aerating pattern
The difference of rate of decay and during resuming operation adaptive capacity to environment difference, activated sludge is handled using intermittent aerating
Mode, activity difference of the rapid expansion between AOB and NOB；Simultaneously using intermittent aerating create come scarce aerobic ring
Electron donor caused by during border, the organic carbon source in protozoa sewage and short distance nitration Anammox autotrophic denitrification
To realize advanced nitrogen dephosphorization.The present invention starts integrated reactor using biological reinforced means, is aided with intermittent aerating
Real-time control and sludge age control means, to fast implement the advanced nitrogen dephosphorization of city domestic sewage.
The intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously, equipment therefor includes city
City's sewage raw water water tank (1), computer (3), may be programmed process controller (4) and go out water tank integrated reactor (2)
(5)。
Municipal sewage raw water water tank (1) is equipped with raw water water tank overflow pipe (1.1) and raw water water tank blow valve (1.2)；City
Sanitary sewage is connected by intake pump (1.3) with integrated reactor (2)；Integrated reactor (2) be equipped with air compressor machine (2.1),
Aeration electromagnetic valve (2.2), gas rotameter (2.3), blender (2.4), pH and DO analyzers (2.5), PH and DO probes
(2.6), outlet valve (2.7), exhaust-valve (2.8) and scab block aeration head (2.9)；Real-time control system be equipped with computer (3),
Programmable process controller (4), signal adapter DA translation interfaces (4.1), signal adapter AD conversion interface (4.2), water inlet
Relay (4.3), stirring relay (4.4), aeration relay (4.5), draining relay (4.6)；Wherein, it may be programmed program-controlled
Signal AD conversion interface (4.2) on device (4) processed is connected by cable with computer (3), and sensor analog signals are turned
It changes digital signal into and passes to computer (3)；Computer (3) is by signal adapter DA translation interfaces (4.1) and may be programmed
Range controller (4) is connected, and the digital command of computer (3) is passed to programmable process controller (4)；Blender relay
(4.4) it is connected with blender (2.4)；PH/DO data signal interfaces (2.5) are connected with computer (3)；Water inlet relay
(4.3) it is connected with intake pump (1.3)；Aeration relay (4.5) is connected with scab block aeration head (2.8)；Drain relay
(4.6) it is connected with outlet valve (2.7)；Precipitation water outlet is drained into out water tank (5) by outlet valve (2.7) comprising water outlet
Water tank overflow mouth (5.1) and go out water tank blow valve (5.2).
The intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously, which is characterized in that packet
Include following steps：
1) startup stage：
The short distance nitration sludge of stable operation in integrated reactor (2) inoculation processing sanitary sewage reactor, and from steady
Take anaerobic ammonium oxidation granular sludge to be inoculated with as kind of mud in the anaerobic ammonia oxidation reactor (UASB) run, wherein reacting surely
Device medium or short range nitrifying sludge is 4 with anaerobic ammonium oxidation granular sludge mass ratio:1, total sludge concentration is controlled in 4000-
5000mg/L.Integrated reactor (2) is inoculated with the aeration quantity continuous aeration after kind of mud with 1.2-1.5mg/L 1-3 days.
2) operation phase：
Integrated reactor (2) is aerated equipped with an air compressor machine (2.1), in water inlet and stage of reaction mechanical agitation paddle
(2.4) it is mixed.Integrated reactor hydraulic detention time is 6h, runs 4 periods daily.Each cycle is at the beginning
Intake pump (1.3) is controlled by real-time control system to enter former sanitary sewage pump into integrated reactor (2), is turned by gas
Subflow gauge (2.3) adjusts aeration quantity, makes integrated reactor Dissolved Oxygen concentration Control in 0.8-1.2mg/L.By controlling in real time
System processed controls intermittent aerating, each cycle 6h, including 4min is intake, 330min intermittent aeratings, 22min precipitations, 4min drainings,
4 periods of operation daily.It in the intermittent aerating stage, is aerated using real-time control system intermittent regulation, alternating is turned on and off sky
Press (2.1), provides the anoxia stirring 22min in 11 periods then low-oxygen aeration 8min, and aeration quantity is 0.8-1.2mg/L's
Service condition.Integrated reactor (2) water outlet is drained by outlet valve (2.7), and draining is than being 50%.Integrated reactor (2)
Floc sludge is discharged in each cycle, and floc sludge age is 30-50d.Its integrated reactor (2) interior temperature passes through heating equipment control
System is at 30-35 DEG C.
3) the spoil disposal stage is screened：
It selects 200 microns of sieve to be sieved, screens out floc sludge, the anaerobic ammonium oxidation granular sludge that will be retained down
It is added in integrated reactor (2) at each cycle fill phase end.
Patent of the present invention has the advantage that：
(1) the intermittent aerating real-time control method of integrated short distance nitration Anammox can precisely realize 4min into
Water, 330min intermittent aeratings, 22min precipitations, 4min water outlets.
(2) present invention can in integrated reactor fast enriching ammonia oxidation bacteria, anaerobic ammonia oxidizing bacteria, realize system
Quickly start and good autotrophic denitrification efficiency.The Rapid Accumulation of nitrite can be also fast implemented simultaneously, be then used as and detested
The matrix of anaerobic ammonium oxidation reaction carries out autotrophic denitrification.Due to the dephosphorization function within preceding several intermittent aerating periods, original is consumed
Organic principle in water, therefore the process of autotrophic denitrification can be smoothed out so that anaerobic ammonia oxidizing bacteria compares in water inlet C/N
It can normally react in the case of height.
(3) present invention can create the ecological environment for being conducive to dephosphorization by intermittent aerating real-time control method.Anaerobism ammonia
Nitrate nitrogen caused by oxidation reaction can carry out dephosphorization as electron donor, in anoxic phases by denitrifying phosphorus removing bacteria, together
When can also by Anammox react caused by 11% nitrate nitrogen remove, accomplish advanced nitrogen.Due in anoxic process
The middle inhomogeneities that Anammox reaction and anoxia stirring occurs has createed a suitable polyP bacteria and has stored internal carbon source
Anaerobic environment；The operational mode of intermittent aerating has also given the biological motive force of polyP bacteria anaerobic phosphorus release aerobic phosphorus absorption so that poly- phosphorus
Bacterium is able to efficient dephosphorization, and dephosphorizing rate can reach 95% or more.
(4) improve sludge settling performance.Help to accelerate in precipitation process rich in phosphatic tiny floc sludge
The sedimentation of sludge prevents the loss of ammonia oxidation bacteria and anaerobic ammonia oxidizing bacteria.
(5) economic input is at low cost.This method is without changing original device and equipment, without the other controls of purchase
Instrument, main energy consumption source are aeration and stirring.
The present invention is suitable for SBR techniques that are newly-built or needing upgrading, and the depth that can fast implement municipal sewage is de-
Nitrogen dephosphorization.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram that the present invention is implemented in integrated reactor；
1 it is municipal sewage raw water water tank in Fig. 1,1.1 be raw water water tank overflow pipe, 1.2 is raw water water tank blow valve, 1.3
For intake pump；2 it is integrated reactor, 2.1 be air compressor machine, 2.2 be aeration electromagnetic valve, 2.3 is gas rotameter, 2.4
For blender, 2.5 be pH and DO analyzers, 2.6 be PH and DO probes, 2.7 be outlet valve, 2.8 be exhaust-valve, 2.9 be scab
Block aeration head；3 it is computer, 4 be programmable process controller, 4.1 be signal adapter DA translation interfaces, 4.2 is that signal turns
Parallel operation AD conversion interface, 4.3 be water inlet relay, 4.4 be stirring relay, 4.5 be aeration relay, 4.6 be draining relay
Device；5 be water tank, 5.1 is water outlet water tank overflow mouth, 5.2 is water tank blow valve.
Fig. 2 is intermittent aerating real-time control method flow chart in the specific embodiment of the invention.
Specific implementation mode
Below in conjunction with attached drawing and technical solution, the present invention will be further described in detail, but the present invention is not limited to following
Embodiment.
Heretofore described method is described further with reference to specific example：
Using Beijing University of Technology's dependents' district sanitary sewage as raw water, specific water quality is as follows for experiment：COD is a concentration of
120-230mg/L, NH4 +- N concentration 58-87mg/L, NO2 -- N≤2mg/L, NO3 --N≤1.5mg/L.Experimental system such as Fig. 1 institutes
Show, each reactor is all made of organic glass and is made, and integrated reactor total volume 11L, wherein effective volume are 10L.
Equipment therefor includes municipal sewage raw water water tank (1), integrated reactor (2), computer (3), programmable process
Controller (4) and go out water tank (5).
Municipal sewage raw water water tank (1) is equipped with raw water water tank overflow pipe (1.1) and raw water water tank blow valve (1.2)；City
Sanitary sewage is connected by intake pump (1.3) with integrated reactor (2)；Integrated reactor (2) be equipped with air compressor machine (2.1),
Aeration electromagnetic valve (2.2), gas rotameter (2.3), blender (2.4), pH and DO analyzers (2.5), PH and DO probes
(2.6), outlet valve (2.7), exhaust-valve (2.8) and scab block aeration head (2.9)；Real-time control system be equipped with computer (3),
Programmable process controller (4), signal adapter DA translation interfaces (4.1), signal adapter AD conversion interface (4.2), water inlet
Relay (4.3), stirring relay (4.4), aeration relay (4.5), draining relay (4.6)；Wherein, it may be programmed program-controlled
Signal AD conversion interface (4.2) on device (4) processed is connected by cable with computer (3), and sensor analog signals are turned
It changes digital signal into and passes to computer (3)；Computer (3) is by signal adapter DA translation interfaces (4.1) and may be programmed
Range controller (4) is connected, and the digital command of computer (3) is passed to programmable process controller (4)；Blender relay
(4.4) it is connected with blender (2.4)；PH/DO data signal interfaces (2.5) are connected with computer (3)；Water inlet relay
(4.3) it is connected with intake pump (1.3)；Aeration relay (4.5) is connected with scab block aeration head (2.8)；Drain relay
(4.6) it is connected with outlet valve (2.7)；Precipitation water outlet is drained into out water tank (5) by outlet valve (2.7) comprising water outlet
Water tank overflow mouth (5.1) and go out water tank blow valve (5.2).
Carrying out practically operation is as follows：
1) startup stage：
The short distance nitration sludge of stable operation in integrated reactor (2) inoculation processing sanitary sewage reactor, and from steady
Take anaerobic ammonium oxidation granular sludge to be inoculated with as kind of mud in the anaerobic ammonia oxidation reactor (UASB) run, wherein reacting surely
Device medium or short range nitrifying sludge is 4 with anaerobic ammonium oxidation granular sludge mass ratio:1, total sludge concentration is controlled in 4000-
5000mg/L.Integrated reactor (2) is inoculated with the aeration quantity continuous aeration after kind of mud with 1.2-1.5mg/L 1-3 days.
2) operation phase：
Integrated reactor (2) is aerated equipped with an air compressor machine (2.1), in water inlet and stage of reaction mechanical agitation paddle
(2.4) it is mixed.Integrated reactor hydraulic detention time is 6h, runs 4 periods daily.Each cycle is at the beginning
Intake pump (1.3) is controlled by real-time control system to enter former sanitary sewage pump into integrated reactor (2), is turned by gas
Subflow gauge (2.3) adjusts aeration quantity, makes integrated reactor Dissolved Oxygen concentration Control in 0.8-1.2mg/L.By controlling in real time
System processed controls intermittent aerating, each cycle 6h, including 4min is intake, 330min intermittent aeratings, 22min precipitations, 4min drainings,
4 periods of operation daily.It in the intermittent aerating stage, is aerated using real-time control system intermittent regulation, alternating is turned on and off sky
Press (2.1), provides the anoxia stirring 22min in 11 periods then low-oxygen aeration 8min, and aeration quantity is 0.8-1.2mg/L's
Service condition.Integrated reactor (2) water outlet is drained by outlet valve (2.7), and draining is than being 50%.Integrated reactor (2)
Floc sludge is discharged in each cycle, and floc sludge age is 30-50d.Its integrated reactor (2) interior temperature passes through heating equipment control
System is at 30-35 DEG C.
3) the spoil disposal stage is screened：
It selects 200 microns of sieve to be sieved, screens out floc sludge, the anaerobic ammonium oxidation granular sludge that will be retained down
It is added in integrated reactor (2) at each cycle fill phase end.
Further, it after integrated reactor is stable, is adjusted in time according to ammonia nitrogen concentration in water outlet and total phosphorus content
Aeration quantity prevented the generation of aeration phenomenon.
Claims (2)
1. the intermittent aerating real-time control method of integrated short distance nitration Anammox dephosphorization simultaneously, which is characterized in that used
Device include municipal sewage raw water water tank (1), integrated reactor (2), computer (3), programmable process controller (4) and
Go out water tank (5)；
Municipal sewage raw water water tank (1) is equipped with raw water water tank overflow pipe (1.1) and raw water water tank blow valve (1.2)；Urban life
Sewage is connected by intake pump (1.3) with integrated reactor (2)；Integrated reactor (2) is equipped with air compressor machine (2.1), aeration
Solenoid valve (2.2), gas rotameter (2.3), blender (2.4), pH and DO analyzers (2.5), PH and DO probes
(2.6), outlet valve (2.7), exhaust-valve (2.8) and scab block aeration head (2.9)；Real-time control system be equipped with computer (3),
Programmable process controller (4), signal adapter DA translation interfaces (4.1), signal adapter AD conversion interface (4.2), water inlet
Relay (4.3), stirring relay (4.4), aeration relay (4.5), draining relay (4.6)；Wherein, it may be programmed program-controlled
Signal AD conversion interface (4.2) on device (4) processed is connected by cable with computer (3), and sensor analog signals are turned
It changes digital signal into and passes to computer (3)；Computer (3) is by signal adapter DA translation interfaces (4.1) and may be programmed
Range controller (4) is connected, and the digital command of computer (3) is passed to programmable process controller (4)；Blender relay
(4.4) it is connected with blender (2.4)；PH/DO data signal interfaces (2.5) are connected with computer (3)；Water inlet relay
(4.3) it is connected with intake pump (1.3)；Aeration relay (4.5) is connected with scab block aeration head (2.8)；Drain relay
(4.6) it is connected with outlet valve (2.7)；Precipitation water outlet is drained into out water tank (5) by outlet valve (2.7) comprising water outlet
Water tank overflow mouth (5.1) and go out water tank blow valve (5.2)；
Include the following steps：
1) startup stage：
The short distance nitration sludge of stable operation in integrated reactor (2) inoculation processing sanitary sewage reactor, and transported from stablizing
Anaerobic ammonium oxidation granular sludge is taken to be inoculated with as kind of mud in capable anaerobic ammonia oxidation reactor, wherein reactor medium or short range nitre
It is 4 to change sludge with anaerobic ammonium oxidation granular sludge mass ratio:1, total sludge concentration is controlled in 4000-5000mg/L；Integration
Reactor (2) is inoculated with the aeration quantity continuous aeration after kind of mud with 1.2-1.5mg/L 1-3 days；
2) operation phase：
Integrated reactor (2) is aerated equipped with air compressor machine (2.1), in water inlet and the stage of reaction with mechanical agitation paddle (2.4)
It is mixed；Integrated reactor hydraulic detention time is 6h, runs 4 periods daily；Each cycle is initially by reality
When control system control intake pump (1.3) former sanitary sewage pump is entered into integrated reactor (2), pass through Gas rotameters flow
It counts (2.3) and adjusts aeration quantity, make integrated reactor Dissolved Oxygen concentration Control in 0.8-1.2mg/L；Pass through real-time control system
Intermittent aerating, each cycle 6h are controlled, including 4min is intake, 330min intermittent aeratings, 22min precipitations, 4min is drained, daily to run
4 periods；It in the intermittent aerating stage, is aerated using real-time control system intermittent regulation, alternating is turned on and off air compressor machine
(2.1), the anoxia stirring 22min in 11 periods then low-oxygen aeration 8min is provided, aeration quantity is the operation item of 0.8-1.2mg/L
Part；Integrated reactor (2) water outlet is drained by outlet valve (2.7), and draining is than being 50%；Integrated reactor (2) each cycle
Floc sludge is discharged, floc sludge age is 30-50d；Its integrated reactor (2) interior temperature is controlled by heating equipment
30-35℃。
2. according to method of claim 1, which is characterized in that further include after the step 2)：Select 200 microns of sieve
It is sieved, screens out floc sludge, the anaerobic ammonium oxidation granular sludge being retained down is added at each cycle fill phase end
In integrated reactor (2).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109626574A (en) * | 2019-01-15 | 2019-04-16 | 青岛大学 | The device and method of two-stage SPNA denitrification process Treating Municipal Sewage |
| CN109650543A (en) * | 2019-02-18 | 2019-04-19 | 青岛大学 | A kind of SPNA integral type denitrogenation method handling low matrix waste water under the conditions of continuous flow |
| CN109824145A (en) * | 2019-03-06 | 2019-05-31 | 北京工业大学 | Regulation Bacterial community fast implements the apparatus and method of sanitary sewage autotrophic denitrification |
| CN110510738A (en) * | 2019-08-12 | 2019-11-29 | 欧基（上海）环保科技有限公司 | A kind of aerobic denitrogenation dephosphorizing enhanced sewage processing system and method |
| CN111410295A (en) * | 2020-03-31 | 2020-07-14 | 西安建筑科技大学 | Rapid starting and stable operation method for shortcut nitrification of biochemical reaction tank |
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