CN106145348A - A kind of device and method utilizing sludge fermentation liquid offer electron donor to carry out low C/N sewage deep denitrogenation - Google Patents
A kind of device and method utilizing sludge fermentation liquid offer electron donor to carry out low C/N sewage deep denitrogenation Download PDFInfo
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- CN106145348A CN106145348A CN201610440730.2A CN201610440730A CN106145348A CN 106145348 A CN106145348 A CN 106145348A CN 201610440730 A CN201610440730 A CN 201610440730A CN 106145348 A CN106145348 A CN 106145348A
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/307—Nitrification and denitrification treatment characterised by direct conversion of nitrite to molecular nitrogen, e.g. by using the Anammox process
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- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
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- 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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- C02F2209/02—Temperature
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- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
A kind of device and method utilizing sludge fermentation liquid offer electron donor to carry out low C/N sewage deep denitrogenation, belongs to biochemical wastewater treatment field.Device includes: former water tank, district drainage formula sbr reactor device, waste water dam automatic control system, intermediate water tank, Anammox SBBR reactor and go out water tank.Described method is that low C/N sewage is introduced into district drainage formula sbr reactor device, short distance nitration is carried out as fuzzy control parameter using pH, after precipitation, the draining for the first time of district drainage formula sbr reactor device is to intermediate water tank, then adding sludge fermentation liquid and carry out denitrification, sludge fermentation liquid enters intermediate water tank with second time water outlet；Twice water outlet enters Anammox SBBR reactor after intermediate water tank mix homogeneously thus realizes the degree of depth removal of nitrogen in sewage, and the phosphate chemical precipitation in Anammox SBBR reactor water outlet is reclaimed.This method solve the problem that low C/N sewage carbon source is not enough, and achieve sludge fermentation liquid electron donor, phosphatic recycling.
Description
Technical field:
The present invention relates to a kind of utilize sludge fermentation liquid provide electron donor carry out low C/N sewage deep denitrogenation device and
Method, belongs to biochemical wastewater treatment and Sludge Reduction Technologies field.
Background technology:
At present, generally there are two difficult problems in municipal sewage plant of China: the first, the C/N of municipal sewage is relatively low, is carrying out
During biological denitrificaion, in sewage, original carbon source can not meet denitrogenation requirement, and this forces sewage treatment plant to have to buy additional
Carbon source, such as methanol etc., this directly increases the expense of sewage treatment plant.It is low C/N as minimum cost improves denitrification percent
The subject matter that bio-denitrifying sewage faces, and find suitable additional carbon and become the focus of concern at present.The second, currently I
Sewage treatment plant of state is mainly based on activated sludge process denitrogenation dephosphorizing, and microorganism constantly carries out metabolism and procreation from generation to generation, leads
Cause sewage treatment plant residual mud to be on the increase.Excess sludge has " two-sidedness ": if can not Appropriate application excess sludge, dirty
Water treatment plant often processes ten thousand tons of waste water, and the generation amount (dry weight) of mud is 0.3～3.0t, so sludge quantity increases year by year, and great number
Sludge treatment expense will become the burden of municipal wastewater treatment plant.Meanwhile, mud has containing degradable in unstabilized mud
Machine thing, odorant, pathogen etc., easily make mud pollutant during transport and disposal link spread further, cause two
Secondary pollution；Owing to the pollutant in sewage are transferred in microbial body, therefore excess sludge is " resource of concentration ", containing organic
Matter composition, nitrogen element, P elements etc..If sludge internal carbon source, the electron donor etc. of itself can fully be developed, it will save sewage
The operating cost for the treatment of plant, reduces cost of sewage disposal.
In actual sewage treatment plant, the sewage treatment plant of more than half is provided with sludge concentration tank and digester, in the hope of
Reach the effect of mud decrement.The present invention then starts with from " resource ", utilizes the dissolved organic matter that sludge hydrolysis, acidification produces
While providing carbon source for low C/N sewage, the nitrogen in excess sludge is participated in Anammox as electron donor, joint
Saving aeration rate and carbon source adds, the process disposal development further for actual sewage treatment plant mud provides reference.
Summary of the invention:
It is an object of the invention to solve municipal sewage biological denitrification process electron donor deficiency, activated sludge process residue dirt
Mud process dispose problem, it is proposed that a kind of utilize sludge fermentation liquid provide electron donor carry out low C/N sewage deep denitrogenation
Device and method.In the present invention, first district drainage formula sbr reactor device carries out short distance nitration, by the NH in sewage4 +-N is oxidized to
NO2 --N, and it is drained into intermediate water tank with one section；Add sludge fermentation liquid, on the one hand supplement carbon source needed for denitrification,
NO2 --N is completely reduced as N2, solve the problem that low C/N sewage carbon source is not enough, on the other hand, the ammonia in sludge fermentation liquid
Nitrogen, also into intermediate water tank, the properly functioning electron donor providing necessity of this Anammox SBBR reactor, makes dirt
Water is able to advanced nitrogen.In the present invention, the excess sludge that district drainage formula sbr reactor device (2) produces is completely used for fermentation, but
District drainage formula sbr reactor device needs add sludge fermentation liquid, the residue that its mud needed produces far more than this experiment
Mud, therefore this experiment entirety does not the most produce excess sludge, and can utilize the excess sludge fermentation broth of sewage treatment plant,
New method is provided for sewage disposal, sludge treatment.
A kind of device utilizing sludge fermentation liquid offer electron donor to carry out low C/N sewage deep denitrogenation, it is characterised in that
It is provided with current, two systems of mud.
Flow promoter system is provided with the city former water tank of low C/N sewage (1), district drainage formula sbr reactor device (2), sewage disposal
Test automatic control system (3), intermediate water tank (4), Anammox SBBR reactor (5) and go out water tank (6)；Wherein,
Former water tank is connected with district drainage formula sbr reactor device (2) water inlet by an intake pump (2.1)；District drainage formula SBR
Reactor (2) is connected with intermediate water tank (4) by one section of outlet valve (2.13), two-stage nitration outlet valve (2.14)；Intermediate water tank passes through
No. two intake pumps (5.1) are connected with Anammox SBBR reactor (5) water inlet；Anammox SBBR reactor (5)
It is connected with going out water tank (6) by outlet valve (5.8).
Described former water tank (1), intermediate water tank (4), go out water tank (6) and be opening casing, be provided with an overflow pipe
(1.1), No. two overflow pipes (4.1), No. three overflow pipes (6.1) and blow-down pipe (1.2), No. two blow-down pipes (4.2), No. three
Blow-down pipe (6.2).
Described district drainage formula sbr reactor device (2) is provided with an agitator (2.2), a stirring paddle (2.3)；Pneumatics
Machine (2.4), air cock (2.5), mass air flow sensor (2.6) and aerator (2.7) collectively constitute short distance nitration sbr reactor device
(2) aerating system；Reactor is inserted with a pH electrode (2.8) and dissolved oxygen probe (2.9), and supervises online with a water quality
Survey multi-parameter (2.10) to connect.District drainage formula sbr reactor device (2) wall is provided with an overflow normally open valve
(2.11), dosing valve (2.12), one section of outlet valve (2.13), two-stage nitration outlet valve (2.14), sampling valve (2.15), reactor
Bottom is provided with mud valve and holds concurrently an exhaust-valve (2.16)；When sewage level is more than overflow normally open valve (2.11), automatically return
Flow to the former water tank of sewage (1).
Described Anammox SBBR reactor (5) is provided with No. two agitators (5.2) and No. two stirring paddles (5.3)；Add
Thermal (5.4) provides heat for reactor；Anammox SBBR reactor (5) is inserted with No. two pH electrode (5.6), and with
No. two monitoring water quality on line multi-parameters (5.5) connect；Anammox SBBR reactor (5) wall is provided with No. two and overflows
Stream normally open valve (5.7), outlet valve (5.8) and No. two sampling valves (5.9), bottom is provided with No. two exhaust-valves (5.10)；In reactor
Side is equipped with biological active filling material (5.11).When sewage level is more than No. two overflow normally open valve (5.7), automatically flow into out water tank
(6)。
Described waste water dam automatic control system (3) is made up of three bulks: first: relay system, including No. one
Intake pump relay (3.1), air cock relay (3.2), agitator relay (3.3), one section of outlet valve relay
(3.4), two-stage nitration outlet valve relay (3.5), No. two intake pump relays (3.6), No. two agitator relays (3.7), water outlets
Valve relay (3.8)；Second: temperature control system, including temperature signal interface (3.9), the superthermal alarm display lamp of temperature
(3.10), temperature display (3.11)；3rd: programming Control system, including reactor running status display screen (3.12), programming
System (3.13).A number intake pump relay (3.1) is connected with an intake pump (2.1), and air cock relay (3.2) is with empty
Air valve (2.5) is connected, and an agitator relay (3.3) is connected with an agitator (2.2), one section of outlet valve relay
(3.4) being connected with one section of outlet valve (2.13), two-stage nitration outlet valve relay (3.5) is connected with two-stage nitration outlet valve (2.14),
No. two intake pump relays (3.6) are connected with No. two intake pumps (5.1), No. two agitator relays (3.7) and No. two stirrings
Device (5.2) is connected, and outlet valve relay (3.8) is connected with outlet valve (5.8), and temperature signal interface (3.9) is by sensing
Device wire is connected with heater (5.4).
Sludge system is provided with: excess sludge stores Sedimentation tank (7), sludge fermentation reactor (8).Described excess sludge stores
Sedimentation tank (7) is provided with No. four overflow pipes (7.1), No. four blow-down pipes (7.2).
Described sludge fermentation reactor (8) is provided with a sludge pump (8.1), and sludge fermentation reactor is inserted with No. three in (8)
PH electrode (8.2), and be connected with No. three monitoring water quality on line multi-parameters (8.3).Gas concentration unit (8.4) is used for receiving
Collection gas.Magnetic agitation rotor (8.5), magnetic stirring apparatus (8.6) are used for stirring fermented sludge and maintaining temperature of reactor；Rotating speed
Regulation button (8.7), temperature adjustment buttons (8.8) are used for regulating rotating speed and temperature.Sludge fermentation reactor (8) is in sealing shape
State, top is provided with mud inlet (8.9) and mud discharging mouth (8.10).
Excess sludge stores the Sedimentation tank (7) mud inlet by a sludge pump (8.1) with sludge fermentation reactor (8)
(8.9) it is connected；Sludge fermentation reactor (8) passes through No. two sludge pumps (2.17) and district drainage formula sbr reactor device (2) phase
Even；District drainage formula sbr reactor device (2) excess sludge by mud valve hold concurrently an exhaust-valve (2.16) and excess sludge store heavy
Fall pond (7) is connected.
The method that device described in application claim 1 carries out sewage deep denitrogenation, its feature comprises the following steps:
1) system start-up: take short-cut nitrification and denitrification mud and be added in district drainage formula sbr reactor device (2), make reaction
In device, sludge concentration reaches 2000～4000mg/L；One layer of filler is filled along inwall in Anammox SBBR reactor (5),
Filling (volume) ratio is 30%～60%, and inoculation sewage treatment plant anaerobic ammonium oxidation sludge is reacted.Sludge fermentation reactor
(8) in, inoculation volume ratio is fermented sludge and the excess sludge of 50% of 50%, makes the mud in sludge fermentation reactor (8) dense
Degree is 15000～20000mg/L.
1) when running, operating condition is as follows:
The operating condition of flow promoter system is as follows:
The sewage of low C/N≤5 is added former water tank (1), starts an intake pump (2.1), sewage suction segmentation is arranged
Ability of swimming sbr reactor device.
The operation sequential of district drainage formula sbr reactor device is followed successively by: water inlet, aeration aerating and stirring, precipitation, for the first time row
Water to intermediate water tank, add sludge fermentation liquid, stir, precipitate, draining for the second time to intermediate water tank, spoil disposal, idle.Sewage enters
Afterwards, first carry out aeration, simultaneously and be stirred continuously and carry out short distance nitration reaction, accumulate nitrite nitrogen.Pass through mass air flow sensor
(2.6) regulation DO=4mg/L, aeration time is 5h, and during aeration agitation, using pH value as fuzzy control parameter, pH is bent
Stopping aeration when line no longer declines, short distance nitration reaction terminates；Precipitation 1h, by one section of outlet valve (2.13) displaced volume ratio be
The sewage of 50%；NH is added to district drainage formula sbr reactor device by dosing valve (2.12)4 +-N=650 ± 50mg/L, COD=
The sludge fermentation liquid of 700 ± 50mg/L, the water inlet of district drainage formula sbr reactor device is 60:1 with sludge fermentation liquid volume ratio；Stirring
Carrying out denitrification, stop stirring when pH value no longer rises, 2h can complete denitrification；Precipitation 3h；Draining for the second time is to middle water
Case, by two-stage nitration outlet valve (2.14) displaced volume than the sewage being 20%；Spoil disposal, makes the sludge age of reactor control at 20d；
Idle 0.5h.As NO in district drainage one section of water outlet of formula sbr reactor device2 --N and NH in two-stage nitration water outlet4 +-N mass concentration value is
During 1.32:1, complete the startup of district drainage formula sbr reactor device.After starting successfully, district drainage formula sbr reactor device is according to entering
Water, aeration aerating and stirring, precipitation, draining for the first time to intermediate water tank, add sludge fermentation liquid, stir, precipitate, second time row
Water is to intermediate water tank, spoil disposal, idle sequential circular flow, and parameter area is: DO=4mg/L during aeration, and aeration time is 5h；
Precipitation 1h；The volume ratio of draining for the first time is 50%；Add NH4 +The mud of-N=650 ± 50mg/L, COD=700 ± 50mg/L
Fermentation liquid, the water inlet of district drainage formula sbr reactor device is 60:1 with sludge fermentation liquid volume ratio；Denitrification 2h；Precipitation 3h；For the second time
The volume ratio of draining is 20%；Sludge age is 20d；Idle 0.5h.
Two sections of drainings after mix homogeneously, start No. two intake pumps (5.1), by sewage suction anaerobism in intermediate water tank (4)
In ammoxidation SBBR reactor (5).
There is thermostat in Anammox SBBR reactor (5), controlled by waste water dam automatic control system (3)
Reactor temperature processed is 33 DEG C, and reactor each cycle adds NaHCO3Buffer solution maintains pH value to be 8.0；Reactor runs sequence
It is classified as: water inlet, mechanical agitation, precipitation, draining, idle.Sewage in intermediate water tank enters reaction by No. two intake pumps (5.1)
Device, anaerobism stirring 8h, carry out draining after 2h, draining specific volume is 50%；Idle 1.5h.When Anammox sbr reactor device goes out
Water TN < 15mg/L, COD < during 50mg/L, completes the startup of Anammox SBBR reactor (5).Then Anammox SBBR
Reactor according to water inlet, mechanical agitation, precipitation, discharge cycle operation and parameter area is: temperature is 33 DEG C, and pH value is 8.0,
Anaerobism stirring 8h, precipitates 2h, and draining specific volume is 50%, idle 1.5h.Anammox SBBR reactor (5) water outlet enters out
Water tank, and add chemical agent wherein to reclaim phosphate.
As Anammox SBBR reactor (5) water outlet TN < 15mg/L, COD < 50mg/L, NH4 +-N<5mg/L、NO2 --N<
After 1mg/L, by each reactor operational factor input waste water dam automatic control system (3), control system is according to predetermined
Mode controls sbr reactor device and runs.
The operating condition of sludge system is as follows:
Excess sludge is added excess sludge storage Sedimentation tank (7) and carries out natural subsidence, start a sludge pump (8.1),
By mud suction sludge fermentation reactor (8).
It is 300r/min that sludge fermentation reactor (8) arranges rotating speed by rotational speed regulation button (8.7), is regulated by temperature
It is 35 DEG C that button (8.8) arranges temperature.Sludge fermentation reactor (8) is by No. two sludge pump (2.17) regulation sludge volumes, with control
Sludge age processed is 10d.NH when sludge fermentation liquid4 +-N=650 ± 50mg/L, during COD=700 ± 50mg/L, sludge fermentation is anti-
Device (8) is answered to start successfully.Then keeping rotating speed is 300r/min, and temperature is 35 DEG C of longtime running sludge fermentation reactor (8).
Know-why:
A kind of device and method technology utilizing sludge fermentation liquid to provide electron donor to carry out low C/N sewage deep denitrogenation is former
Reason is by adding sludge fermentation liquid, provides carbon source for the reaction of low C/N sewage denitrification, and the ammonia nitrogen in sludge fermentation liquid becomes simultaneously
Substrate for Anammox reaction.This experiment is reacted by the short distance nitration in district drainage formula sbr reactor device (2), anti-nitre
Change the reaction of the Anammox in reaction, Anammox SBBR reactor (5) and jointly complete the advanced nitrogen of sewage.
The present invention is a kind of utilizes sludge fermentation liquid to provide the device and method that electron donor carries out low C/N sewage deep denitrogenation
Have the advantage that compared with traditional wastewater denitrification process
1, this device reaction device is less, and sewerage has only to two sbr reactor devices and just can reach to process low C/N dirt simultaneously
Water and the dual purpose utilizing sludge fermentation liquid, capital cost is less；
2, operating cost is low, it is not necessary to additional carbon just can realize sewage deep denitrogenation.The carbon source of denitrification denitrogenation is all come
Come from sludge fermentation liquid, develop internal carbon source；The most a part of nitrogen element is removed by Anammox reaction, anaerobism ammonia oxygen
Change antibacterial is autotrophic bacteria, it is not necessary to organic carbon source；
3, sludge fermentation liquid is providing while carbon source for district drainage formula sbr reactor device, carries for a whole set of nitrogen rejection facility
Supplied for electronic donor, it is ensured that the substrate that Anammox reaction is sufficient；
4, the excess sludge that the present invention produces is completely used for fermentation, but needs in district drainage formula sbr reactor device to add
Sludge fermentation liquid, the excess sludge that its mud needed produces far more than this experiment, therefore this experiment entirety does not produces
Excess sludge, and the excess sludge fermentation broth of sewage treatment plant can be utilized, provide new side for sewage disposal, sludge treatment
Method；
Accompanying drawing illustrates:
Fig. 1 is the structural representation of this device
Former water tank；1.1, an overflow pipe；1.2, a blow-down pipe；2, district drainage formula sbr reactor device；2.1, No. one
Intake pump；2.2, an agitator；2.3, a stirring paddle；2.4, air compressor machine；2.5 air cock；2.6, mass air flow sensor；2.7
Aerator；2.8, a pH electrode；2.9, dissolved oxygen probe；2.10, a monitoring water quality on line multi-parameter；
2.11, an overflow normally open valve；2.12, dosing valve；2.13, one section of outlet valve；2.14, two-stage nitration outlet valve；2.15, a sampling
Valve；2.16, mud valve is held concurrently an exhaust-valve；2.17, No. two sludge pumps；3, waste water dam automatic control system；3.1, one
Number intake pump relay；3.2, air cock relay；3.3, an agitator relay；3.4, one section of outlet valve relay；
3.5, two-stage nitration outlet valve relay；3.6, No. two intake pump relays；3.7, No. two agitator relays；3.8, outlet valve relay
Device；3.9, temperature signal interface；3.10, the superthermal alarm display lamp of temperature；3.11, temperature display；3.12, reactor runs shape
State display screen；3.13, programing system (3.13) 4, intermediate water tank；4.1, No. two overflow pipes；4.2, No. two blow-down pipes；5, anaerobism ammonia
Oxidation SBBR reactor；5.1, No. two intake pumps；5.2, No. two agitators；5.3, No. two stirring paddles；5.4, heater；5.5、
No. two monitoring water quality on line multi-parameters；5.6, No. two pH electrode；5.7, No. two overflow normally open valves；5.8, outlet valve；
5.9, No. two sampling valves；5.10, No. two exhaust-valves；5.11, filler.6, water tank is gone out；6.1, No. three overflow pipes；6.2, put for No. three
Blank pipe；7, excess sludge stores Sedimentation tank；7.1, No. four overflow pipes；7.2, No. four blow-down pipes；8, sludge fermentation reactor；8.1、
A number sludge pump；8.2, No. three pH electrode；8.3, No. three monitoring water quality on line multi-parameters；8.4, gas concentration unit；
8.5, magnetic agitation rotor；8.6, magnetic stirring apparatus；8.7, rotational speed regulation button；8.8, temperature adjustment buttons (8.8)；8.9, enter
Mud mouth；8.10, mud discharging mouth.
Fig. 2 is the operation sequential chart of each reactor in the present invention.
Detailed description of the invention:
With embodiment, the present invention is described in further details below in conjunction with the accompanying drawings: as it is shown in figure 1, one utilizes mud to send out
Ferment liquid provides electron donor to carry out the device of low C/N sewage deep denitrogenation, it is characterised in that: it is provided with current, two systems of mud.
It is automatic that flow promoter system is provided with the city former water tank of low C/N sewage (1), district drainage formula sbr reactor device (2), waste water dam
Control system (3), intermediate water tank (4), Anammox SBBR reactor (5) and go out water tank (6)；Wherein, former water tank
It is connected with district drainage formula sbr reactor device (2) water inlet by an intake pump (2.1)；District drainage formula sbr reactor device
(2) it is connected with intermediate water tank (4) by one section of outlet valve (2.13), two-stage nitration outlet valve (2.14)；Intermediate water tank is entered by No. two
Water pump (5.1) is connected with Anammox SBBR reactor (5) water inlet；Anammox SBBR reactor (5) passes through
Water valve (5.8) is connected with going out water tank (6).
Described former water tank (1), intermediate water tank (4), go out water tank (6) and be opening casing, be provided with an overflow pipe
(1.1), No. two overflow pipes (4.1), No. three overflow pipes (6.1) and blow-down pipe (1.2), No. two blow-down pipes (4.2), No. three
Blow-down pipe (6.2).
Described district drainage formula sbr reactor device (2) is provided with an agitator (2.2), a stirring paddle (2.3)；Pneumatics
Machine (2.4), air cock (2.5), mass air flow sensor (2.6) and aerator (2.7) collectively constitute short distance nitration sbr reactor device
(2) aerating system；Reactor is inserted with a pH electrode (2.8) and dissolved oxygen probe (2.9), and supervises online with a water quality
Survey multi-parameter (2.10) to connect.District drainage formula sbr reactor device (2) wall is provided with an overflow normally open valve
(2.11), dosing valve (2.12), one section of outlet valve (2.13), two-stage nitration outlet valve (2.14), sampling valve (2.15), reactor
Bottom is provided with mud valve and holds concurrently an exhaust-valve (2.16)；When sewage level is more than overflow normally open valve (2.11), automatically return
Flow to the former water tank of sewage (1).
Described Anammox SBBR reactor (5) is provided with No. two agitators (5.2) and No. two stirring paddles (5.3)；Add
Thermal (5.4) provides heat for reactor；Anammox SBBR reactor (5) is inserted with No. two pH electrode (5.6), and with
No. two monitoring water quality on line multi-parameters (5.5) connect；Anammox SBBR reactor (5) wall is provided with No. two overflows
Normally open valve (5.7), outlet valve (5.8) and No. two sampling valves (5.9), bottom is provided with No. two exhaust-valves (5.10)；Inside reactor
Equipped with biological active filling material (5.11).When sewage level is more than No. two overflow normally open valve (5.7), automatically flow into out water tank
(6)。
Described waste water dam automatic control system (3) is made up of three bulks: first: relay system, including No. one
Intake pump relay (3.1), air cock relay (3.2), agitator relay (3.3), one section of outlet valve relay
(3.4), two-stage nitration outlet valve relay (3.5), No. two intake pump relays (3.6), No. two agitator relays (3.7), water outlets
Valve relay (3.8)；Second: temperature control system, including temperature signal interface (3.9), the superthermal alarm display lamp of temperature
(3.10), temperature display (3.11)；3rd: programming Control system, including reactor running status display screen (3.12), programming
System (3.13).A number intake pump relay (3.1) is connected with an intake pump (2.1), and air cock relay (3.2) is with empty
Air valve (2.5) is connected, and an agitator relay (3.3) is connected with an agitator (2.2), one section of outlet valve relay
(3.4) being connected with one section of outlet valve (2.13), two-stage nitration outlet valve relay (3.5) is connected with two-stage nitration outlet valve (2.14),
No. two intake pump relays (3.6) are connected with No. two intake pumps (5.1), No. two agitator relays (3.7) and No. two stirrings
Device (5.2) is connected, and outlet valve relay (3.8) is connected with outlet valve (5.8), and temperature signal interface (3.9) is by sensing
Device wire is connected with heater (5.4).
Sludge system is provided with: excess sludge stores Sedimentation tank (7), sludge fermentation reactor (8).Described excess sludge stores
Sedimentation tank (7) is provided with No. four overflow pipes (7.1), No. four blow-down pipes (7.2).
Described sludge fermentation reactor (8) is provided with a sludge pump (8.1), and sludge fermentation reactor is inserted with No. three in (8)
PH electrode (8.2), and be connected with No. three monitoring water quality on line multi-parameters (8.3).Gas concentration unit (8.4) is used for receiving
Collection gas.Magnetic agitation rotor (8.5), magnetic stirring apparatus (8.6) are used for stirring fermented sludge and maintaining temperature of reactor；Rotating speed
Regulation button (8.7), temperature adjustment buttons (8.8) are used for regulating rotating speed and temperature.Sludge fermentation reactor (8) is in sealing shape
State, top is provided with mud inlet (8.9) and mud discharging mouth (8.10).
Excess sludge stores the Sedimentation tank (7) mud inlet by a sludge pump (8.1) with sludge fermentation reactor (8)
(8.9) it is connected；Sludge fermentation reactor (8) passes through No. two sludge pumps (2.17) and district drainage formula sbr reactor device (2) phase
Even；District drainage formula sbr reactor device (2) excess sludge by mud valve hold concurrently an exhaust-valve (2.16) and excess sludge store heavy
Fall pond (7) is connected.
Device described in application claim 1 carries out one and utilizes sludge fermentation liquid to provide electron donor to carry out low C/N sewage
The device and method of advanced nitrogen, its feature comprises the following steps:
1) system start-up: take short-cut nitrification and denitrification mud and be added in district drainage formula sbr reactor device (2), make reaction
In device, sludge concentration reaches 2000～4000mg/L；One layer of filler is filled along inwall in Anammox SBBR reactor (5),
Packing ratio is 30%～60%, and inoculation sewage treatment plant anaerobic ammonium oxidation sludge is reacted.Sludge fermentation reactor connects in (8)
Kind of volume ratio is fermented sludge and the excess sludge of 50% of 50%, makes the sludge concentration in sludge fermentation reactor (8) be
15000～20000mg/L.
2) when running, operating condition is as follows:
The operating condition of flow promoter system is as follows:
The sewage of low C/N≤5 is added former water tank (1), starts an intake pump (2.1), sewage suction segmentation is arranged
Ability of swimming sbr reactor device.
The operation sequential of district drainage formula sbr reactor device is followed successively by: water inlet, aeration aerating and stirring, precipitation, for the first time row
Water to intermediate water tank, add sludge fermentation liquid, stir, precipitate, draining for the second time to intermediate water tank, spoil disposal, idle.Sewage enters
Afterwards, first carry out aeration, simultaneously and be stirred continuously and carry out short distance nitration reaction, accumulate nitrite nitrogen.Pass through mass air flow sensor
(2.6) regulation DO=4mg/L, aeration time is 5h, and during aeration agitation, using pH value as fuzzy control parameter, pH is bent
Stopping aeration when line no longer declines, short distance nitration reaction terminates；Precipitation 1h, by one section of outlet valve (2.13) displaced volume ratio be
The sewage of 50%；NH is added to district drainage formula sbr reactor device by dosing valve (2.12)4 +-N=650 ± 50mg/L, COD=
The sludge fermentation liquid of 700 ± 50mg/L, the water inlet of district drainage formula sbr reactor device is 60:1 with sludge fermentation liquid volume ratio；Stirring
Carrying out denitrification, stop stirring when pH value no longer rises, 2h can complete denitrification；Precipitation 3h；Draining for the second time is to middle water
Case, by two-stage nitration outlet valve (2.14) displaced volume than the sewage being 20%；Spoil disposal, makes the sludge age of reactor control at 20d；
Idle 0.5h.As NO in district drainage one section of water outlet of formula sbr reactor device2 --N and NH in two-stage nitration water outlet4 +-N mass concentration value is
During 1.32:1, complete the startup of district drainage formula sbr reactor device.After starting successfully, district drainage formula sbr reactor device is according to entering
Water, aeration aerating and stirring, precipitation, draining for the first time to intermediate water tank, add sludge fermentation liquid, stir, precipitate, second time row
Water is to intermediate water tank, spoil disposal, idle sequential circular flow, and parameter area is: DO=4mg/L during aeration, and aeration time is 5h；
Precipitation 1h；The volume ratio of draining for the first time is 50%；Add NH4 +The mud of-N=650 ± 50mg/L, COD=700 ± 50mg/L
Fermentation liquid, the water inlet of district drainage formula sbr reactor device is 60:1 with sludge fermentation liquid volume ratio；Denitrification 2h；Precipitation 3h；For the second time
The volume ratio of draining is 20%；Sludge age is 20d；Idle 0.5h.
Two sections of drainings after mix homogeneously, start No. two intake pumps (5.1), by sewage suction anaerobism in intermediate water tank (4)
In ammoxidation SBBR reactor (5).
There is thermostat in Anammox SBBR reactor (5), controlled by waste water dam automatic control system (3)
Reactor temperature processed is 33 DEG C, and reactor each cycle adds NaHCO3Buffer solution maintains pH value to be 8.0；Reactor runs sequence
It is classified as: water inlet, mechanical agitation, precipitation, draining, idle.Sewage in intermediate water tank enters reaction by No. two intake pumps (5.1)
Device, anaerobism stirring 8h, carry out draining after 2h, draining specific volume is 50%；Idle 1.5h.When Anammox sbr reactor device goes out
Water TN < 15mg/L, COD < during 50mg/L, completes the startup of Anammox SBBR reactor (5).Then Anammox SBBR
Reactor according to water inlet, mechanical agitation, precipitation, discharge cycle operation and parameter area is: temperature is 33 DEG C, and pH value is 8.0,
Anaerobism stirring 8h, precipitates 2h, and draining specific volume is 50%, idle 1.5h.Anammox SBBR reactor (5) water outlet enters out
Water tank, and add chemical agent wherein to reclaim phosphate.
As Anammox SBBR reactor (5) water outlet TN < 15mg/L, COD < 50mg/L, NH4 +-N<5mg/L、NO2 --N<
After 1mg/L, by each reactor operational factor input waste water dam automatic control system (3), control system is according to predetermined
Mode controls sbr reactor device and runs.
The operating condition of sludge system is as follows:
Excess sludge is added excess sludge storage Sedimentation tank (7) and carries out natural subsidence, start a sludge pump (8.1),
By mud suction sludge fermentation reactor (8).
It is 300r/min that sludge fermentation reactor (8) arranges rotating speed by rotational speed regulation button (8.7), is regulated by temperature
It is 35 DEG C that button (8.8) arranges temperature.Sludge fermentation reactor (8) is by No. two sludge pump (2.17) regulation sludge volumes, with control
Sludge age processed is 10d.NH when sludge fermentation liquid4 +-N=650 ± 50mg/L, during COD=700 ± 50mg/L, sludge fermentation is anti-
Device (8) is answered to start successfully.Then keeping rotating speed is 300r/min, and temperature is 35 DEG C of longtime running sludge fermentation reactor (8).
Long run test result shows: after stable, package unit water outlet TN < 15mg/L, COD < 50mg/L, NH4 +-N<
5mg/L、NO2 --N<1mg/L.The composite can be widely applied to municipal sewage and other low C/N Industrial Wastewater Treatment.
Claims (2)
1. one kind utilizes sludge fermentation liquid to provide the device that electron donor carries out low C/N sewage deep denitrogenation, it is characterised in that set
There are current, two systems of mud；
Flow promoter system is provided with the city former water tank of low C/N sewage (1), district drainage formula sbr reactor device (2), waste water dam
Automatic control system (3), intermediate water tank (4), Anammox SBBR reactor (5) and go out water tank (6)；Wherein, former water
Water tank is connected with district drainage formula sbr reactor device (2) water inlet by an intake pump (2.1)；District drainage formula sbr reactor
Device (2) is connected with intermediate water tank (4) by one section of outlet valve (2.13), two-stage nitration outlet valve (2.14)；Intermediate water tank passes through No. two
Intake pump (5.1) is connected with Anammox SBBR reactor (5) water inlet；Anammox SBBR reactor (5) passes through
Outlet valve (5.8) is connected with going out water tank (6)；
Described former water tank (1), intermediate water tank (4), go out water tank (6) and be opening casing, be provided with an overflow pipe (1.1),
No. two overflow pipes (4.1), No. three overflow pipes (6.1) and blow-down pipe (1.2), No. two blow-down pipes (4.2), No. three blow-down pipes
(6.2)；
Described district drainage formula sbr reactor device (2) is provided with an agitator (2.2), a stirring paddle (2.3)；Air compressor machine
(2.4), air cock (2.5), mass air flow sensor (2.6) and aerator (2.7) collectively constitute short distance nitration sbr reactor device (2)
Aerating system；Reactor is inserted with a pH electrode (2.8) and dissolved oxygen probe (2.9), and with a monitoring water quality on line
Multi-parameter (2.10) connects；District drainage formula sbr reactor device (2) wall be provided with an overflow normally open valve (2.11),
Dosing valve (2.12), one section of outlet valve (2.13), two-stage nitration outlet valve (2.14), sampling valve (2.15), reactor bottom sets
Mud valve is had to hold concurrently an exhaust-valve (2.16)；When sewage level is more than overflow normally open valve (2.11), automatic back flow is to dirty
The former water tank of water (1)；
Described Anammox SBBR reactor (5) is provided with No. two agitators (5.2) and No. two stirring paddles (5.3)；Add hot charging
Put (5.4) and provide heat for reactor；Anammox SBBR reactor (5) is inserted with No. two pH electrode (5.6), and with No. two
Monitoring water quality on line multi-parameter (5.5) connects；It is normal that Anammox SBBR reactor (5) wall is provided with No. two overflows
Valve opening (5.7), outlet valve (5.8) and No. two sampling valves (5.9), bottom is provided with No. two exhaust-valves (5.10)；Fill inside reactor
There is biological active filling material (5.11)；When sewage level is more than No. two overflow normally open valve (5.7), automatically flow into out water tank (6)；
Described waste water dam automatic control system (3) is made up of three bulks: first: relay system, including a water inlet
Pump relay (3.1), air cock relay (3.2), agitator relay (3.3), one section of outlet valve relay (3.4),
Two-stage nitration outlet valve relay (3.5), No. two intake pump relays (3.6), No. two agitator relays (3.7), outlet valve relays
Device (3.8)；Second: temperature control system, including temperature signal interface (3.9), the superthermal alarm display lamp of temperature (3.10), temperature
Display screen (3.11)；3rd: programming Control system, including reactor running status display screen (3.12), programing system (3.13)；
A number intake pump relay (3.1) is connected with an intake pump (2.1), air cock relay (3.2) and air cock (2.5) phase
Connecting, an agitator relay (3.3) is connected with an agitator (2.2), one section of outlet valve relay (3.4) and one section
Outlet valve (2.13) is connected, and two-stage nitration outlet valve relay (3.5) is connected with two-stage nitration outlet valve (2.14), and No. two intake pumps continue
Electrical equipment (3.6) is connected with No. two intake pumps (5.1), and No. two agitator relays (3.7) are connected with No. two agitators (5.2)
Connecing, outlet valve relay (3.8) is connected with outlet valve (5.8), and temperature signal interface (3.9) passes through sensor conductor and heating
Device (5.4) is connected；
Sludge system is provided with: excess sludge stores Sedimentation tank (7), sludge fermentation reactor (8)；Described excess sludge stores sedimentation
Pond (7) is provided with No. four overflow pipes (7.1), No. four blow-down pipes (7.2)；
Described sludge fermentation reactor (8) is provided with a sludge pump (8.1), is inserted with No. three pH electricity in sludge fermentation reactor (8)
Pole (8.2), and be connected with No. three monitoring water quality on line multi-parameters (8.3)；Gas concentration unit (8.4) is used for collecting gas
Body；Magnetic agitation rotor (8.5), magnetic stirring apparatus (8.6) are used for stirring fermented sludge and maintaining temperature of reactor；Rotational speed regulation
Button (8.7), temperature adjustment buttons (8.8) are used for regulating rotating speed and temperature；Sludge fermentation reactor (8) is in sealing state,
Top is provided with mud inlet (8.9) and mud discharging mouth (8.10)；
Excess sludge stores the Sedimentation tank (7) mud inlet (8.9) by a sludge pump (8.1) with sludge fermentation reactor (8)
It is connected；Sludge fermentation reactor (8) is connected with district drainage formula sbr reactor device (2) by No. two sludge pumps (2.17)；Segmentation
Drainage type sbr reactor device (2) excess sludge stores Sedimentation tank (7) by a hold concurrently exhaust-valve (2.16) and excess sludge of mud valve
It is connected.
2. the method that device described in application claim 1 carries out advanced nitrogen, its feature comprises the following steps:
1) system start-up: take short-cut nitrification and denitrification mud and be added in district drainage formula sbr reactor device (2), in making reactor
Sludge concentration reaches 2000～4000mg/L；In Anammox SBBR reactor (5), fill one layer of filler along inwall, fill
Ratio is 30%～60%, and inoculation sewage treatment plant anaerobic ammonium oxidation sludge is reacted；Sludge fermentation reactor (8) interior inoculum
Long-pending than be 50% fermented sludge and the excess sludge of 50%, make the sludge concentration in sludge fermentation reactor (8) be 15000～
20000mg/L；
2) when running, operating condition is as follows:
The operating condition of flow promoter system is as follows:
Sewage is added former water tank (1), starts an intake pump (2.1), by sewage suction district drainage formula sbr reactor device；
The operation sequential of district drainage formula sbr reactor device is followed successively by: water inlet, aeration aerating and stirring, and precipitation, draining for the first time is extremely
Intermediate water tank, add sludge fermentation liquid, stir, precipitate, draining for the second time to intermediate water tank, spoil disposal, idle；Sewage enters it
After, first carry out aeration, simultaneously and be stirred continuously and carry out short distance nitration reaction, accumulate nitrite nitrogen；Pass through mass air flow sensor
(2.6) regulation DO=3.5～5mg/L, aeration time is 4～6h, during aeration agitation, using pH value as fuzzy control
Parameter, stops aeration when pH curve no longer declines, short distance nitration reaction terminates；Precipitation 0.5～1.5h, by one section of outlet valve
(2.13) displaced volume is than the sewage being 40%～60%；Added to district drainage formula sbr reactor device by dosing valve (2.12)
NH4 +The sludge fermentation liquid of-N=650 ± 50mg/L, COD=700 ± 50mg/L, the water inlet of district drainage formula sbr reactor device and mud
Fermentating liquid volume is than for 50:1～70:1；Stirring carries out denitrification, stops stirring when pH value no longer rises, and 0.5～2h can be complete
Become denitrification；Precipitation 2～3h；Draining for the second time, to intermediate water tank, is 20% by two-stage nitration outlet valve (2.14) displaced volume ratio
～the sewage of 25%；Spoil disposal, makes the sludge age of reactor control at 15d～25d；Idle 0.5～1h；When district drainage formula SBR
NO in one section of water outlet of reactor2 --N and NH in two-stage nitration water outlet4 +When-N mass concentration value is 1:1～1.5:1, complete district drainage
The startup of formula sbr reactor device；After starting successfully, district drainage formula sbr reactor device, according to water inlet, aeration aerating and stirring, precipitates,
Draining for the first time to intermediate water tank, add sludge fermentation liquid, stir, precipitate, draining for the second time to intermediate water tank, spoil disposal, idle
Sequential circular flow, parameter area is: DO=3.5～5mg/L during aeration, and aeration time is 4～6h；Precipitation 0.5～1.5h；
The volume ratio of draining for the first time is 40%～60%；Add NH4 +The mud of-N=650 ± 50mg/L, COD=700 ± 50mg/L
Fermentation liquid, the water inlet of district drainage formula sbr reactor device is 50:1～70:1 with sludge fermentation liquid volume ratio；Denitrification 0.5～2h；Heavy
Shallow lake 2～3h；The volume ratio of draining for the second time is 20%～25%；Sludge age is 15d～25d；Idle 0.5～1h；
Two sections of drainings after mix homogeneously, start No. two intake pumps (5.1) in intermediate water tank (4), by sewage suction anaerobism ammonia oxygen
Change in SBBR reactor (5)；
There is thermostat in Anammox SBBR reactor (5), controlled by waste water dam automatic control system (3) anti-
Answering temperature in device is 30～35 DEG C, and reactor each cycle adds NaHCO3Buffer solution maintains pH value to be 7.5～8.2；Reactor
Running process is: water inlet, mechanical agitation, precipitation, draining, idle；Sewage in intermediate water tank is entered by No. two intake pumps (5.1)
Entering reactor, anaerobism stirring 6～8h, carry out draining after precipitation 2～4h, draining specific volume is 40%～60%；Idle 1～
2.5h；When Anammox sbr reactor device water outlet TN < 15mg/L, COD < during 50mg/L, completes Anammox SBBR reactor
(5) startup；Then Anammox SBBR reactor runs and parameter according to water inlet, mechanical agitation, precipitation, discharge cycle
Scope is: temperature is 30～35 DEG C, and pH value is 7.5～8.2, anaerobism stirring 6～8h, precipitates 2～4h, and draining specific volume is 40%
～60%, idle 1～2.5h；Anammox SBBR reactor (5) water outlet enters out water tank.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032506A (en) * | 2017-05-24 | 2017-08-11 | 北京工业大学 | It is segmented the apparatus and method that water outlet short distance nitration Anammox/ denitrifications handle sanitary sewage |
| CN108408899A (en) * | 2018-03-22 | 2018-08-17 | 北京工业大学 | A kind of device and method for realizing synchronous advanced nitrogen dephosphorization using anaerobic sludge digestion liquid |
| CN109110924A (en) * | 2018-09-26 | 2019-01-01 | 上海力脉环保设备有限公司 | A kind of simultaneous phosphorus and nitrogen removal sbr reactor device |
| CN110002590A (en) * | 2019-05-05 | 2019-07-12 | 北京工业大学 | The device and method of synchronous short-cut nitrification and denitrification dephosphorization are realized under conditions of intermittent aerating using sludge fermentation object |
| CN111348753A (en) * | 2018-12-21 | 2020-06-30 | 中国石油化工股份有限公司 | Method for enhancing denitrification of denitrifying microorganisms |
| CN112875853A (en) * | 2021-04-19 | 2021-06-01 | 北京工业大学 | Two-stage type shortcut nitrification anaerobic ammonia oxidation-endogenous denitrification phosphorus removal process for realizing synchronous nitrogen and phosphorus removal of municipal domestic sewage |
| CN116272645A (en) * | 2023-05-11 | 2023-06-23 | 中建环能科技股份有限公司 | Sewage denitrification carrier preparation system and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663862A (en) * | 2013-11-25 | 2014-03-26 | 北京工业大学 | Device and method for nitrogen and phosphorus removal for low CN ratio urban sewage through nitrosation and anaerobic ammonia oxidation coupling denitrifying phosphorus removal intensification |
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- 2016-06-17 CN CN201610440730.2A patent/CN106145348B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663862A (en) * | 2013-11-25 | 2014-03-26 | 北京工业大学 | Device and method for nitrogen and phosphorus removal for low CN ratio urban sewage through nitrosation and anaerobic ammonia oxidation coupling denitrifying phosphorus removal intensification |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032506A (en) * | 2017-05-24 | 2017-08-11 | 北京工业大学 | It is segmented the apparatus and method that water outlet short distance nitration Anammox/ denitrifications handle sanitary sewage |
| CN108408899A (en) * | 2018-03-22 | 2018-08-17 | 北京工业大学 | A kind of device and method for realizing synchronous advanced nitrogen dephosphorization using anaerobic sludge digestion liquid |
| CN109110924A (en) * | 2018-09-26 | 2019-01-01 | 上海力脉环保设备有限公司 | A kind of simultaneous phosphorus and nitrogen removal sbr reactor device |
| CN111348753A (en) * | 2018-12-21 | 2020-06-30 | 中国石油化工股份有限公司 | Method for enhancing denitrification of denitrifying microorganisms |
| CN110002590A (en) * | 2019-05-05 | 2019-07-12 | 北京工业大学 | The device and method of synchronous short-cut nitrification and denitrification dephosphorization are realized under conditions of intermittent aerating using sludge fermentation object |
| CN110002590B (en) * | 2019-05-05 | 2021-10-01 | 北京工业大学 | Device and method for realizing synchronous short-cut nitrification and denitrification dephosphorization by utilizing sludge fermentation product under intermittent aeration condition |
| CN112875853A (en) * | 2021-04-19 | 2021-06-01 | 北京工业大学 | Two-stage type shortcut nitrification anaerobic ammonia oxidation-endogenous denitrification phosphorus removal process for realizing synchronous nitrogen and phosphorus removal of municipal domestic sewage |
| CN116272645A (en) * | 2023-05-11 | 2023-06-23 | 中建环能科技股份有限公司 | Sewage denitrification carrier preparation system and preparation method |
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