CN106966506A - A kind of SBR method of wastewater treatment and device that carbon is released including online eddy flow - Google Patents
A kind of SBR method of wastewater treatment and device that carbon is released including online eddy flow Download PDFInfo
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- CN106966506A CN106966506A CN201710369165.XA CN201710369165A CN106966506A CN 106966506 A CN106966506 A CN 106966506A CN 201710369165 A CN201710369165 A CN 201710369165A CN 106966506 A CN106966506 A CN 106966506A
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/0012—Devices for disintegrating materials by collision of these materials against a breaking surface or breaking body and/or by friction between the material particles (also for grain)
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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
- C02F3/302—Nitrification and denitrification treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
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- Engineering & Computer Science (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Activated Sludge Processes (AREA)
Abstract
The present invention relates to a kind of SBR method of wastewater treatment that carbon is released including online eddy flow, methods described is included in the fill phase carried out in SBR biochemistry pools, aeration phase, precipitate phase, strains water stage and idle stage, carbon device is wherein released by eddy flow in aeration phase carbon is released to the online eddy flow of interior backflow mixed liquor progress in SBR biochemistry pools, and the mixed liquor that carbon is released by online eddy flow is wherein back to SBR biochemistry pools again.The invention further relates to the device for implementing the above-mentioned SBR method of wastewater treatment that carbon is released including online eddy flow.The beneficial effects of the present invention are improve biochemical activity and mud decrement；With opening one's minds for " process emission reduction ", specific resistance to filtration cost is reduced；And eddy flow releases the characteristics of carbon utensil has low energy consumption, non-secondary pollution, simple in construction, easy replacing and do not influence system stable operation.
Description
Technical field
The invention belongs to activated sludge process waste water treatment process transformation field, it is related to and a kind of releases carbon including online eddy flow
SBR method of wastewater treatment and device, specifically, installation eddy flow releases carbon device by traditional SBR biochemistry pools, same in aeration phase
Step introduce online eddy flow release carbon process strengthening anoxia/aerobic biological denitrification efficiency and and the method for realizing mud decrement, Yi Jishi
The device of existing this method.
Background technology
The purification treatment technology of existing more ripe industrial and domestic waste water includes physics, chemistry, biological treatment, because of nature
There is substantial amounts of microorganism in boundary, with oxidation Decomposition organic matter and be translated into the huge function of inorganic matter, can also make certain
A little poisonous organic matter such as phenol, aldehyde, fat etc. are innoxious, therefore biological treatment is the main process of sewage disposal.SBR
(Sequencing Batch Activated Sludge Reactor Technology) is sequencing batch active sludge and its
Its technique is different, and it splits the mode of operation for replacing space to split using the time, and technical process includes 5 stages, that is, intakes, exposes
Gas, precipitate, strain water, idle stage.The technique structures quantity is few, low cost, it is not necessary to two heavy ground, is easy to operation and maintenance pipe
Reason, it is to avoid traditional anaerobic reactor treatment effeciency is low, take up an area big shortcoming, by global approval extensively.
There are substantial amounts of toxicity and Recalcitrant chemicals in existing trade effluent, active pollution index surface is wrapped in for a long time
It can not degrade or depart from and cause mass transfer to be obstructed, cause nitrification or denitrifying bacteria to obtain nutrition supply in time and make bacteria in viable
Property be deteriorated.In addition, with the improvement of people's living standards, nutrient N, P concentration in the quickening of Urbanization Construction, sanitary wastewater
Improve, cause, into the reduction of water C relative concentrations, to influence denitrification denitrogenation effect.Except sludge mass transfer is obstructed, sludge activity is low, denitrogenation
Outside the problems such as dephosphorization efficiency, excess sludge production is big, organic toxicity is high, the problems such as be difficult to recycling treatment be also at existing sewage
The faced great difficult problem of reason.For problem above, Chinese invention patent application 201210067683.3 discloses one kind in dirt
Filling bio-carrier is rich in the trace element grown for microorganism, the unique form of bio-carrier in water process main technique
DO changeable environments can be formed, sludge retention time is long, realize the purpose of mud decrement；Chinese invention patent application
201210172789.X discloses one kind and enters the anaerobic biochemical reactions such as solid nutrient salt progress denitrification in anaerobic pond, realizes dirty
Mud decrement；Chinese invention patent application 200910072268.5 discloses a kind of by after partial sludge ultrasonication, ozone processing
Acidification is hydrolyzed into preliminary sedimentation tank together with municipal sewage, sludge activity, intensified denitrification and dephosphorization effect is improved；Middle promulgated by the State Council
Bright patent application 201410753368.5 discloses a kind of enhanced type synchronous denitrification dephosphorizing sewage water treatment method and device；Middle promulgated by the State Council
Bright patent application 201310392290.4 discloses a kind of sewage water denitrification handling process, by adding organic matter into sewage to supplement
Denitrogenation dephosphorizing carbon source is not enough.Above patent mainly realizes mud decrement by additionally adding some materials or increase energy consumption, strong
Change denitrogenation dephosphorizing, but there is secondary pollution, fluctuation of service, operating cost in these methods.Sludge yield and shakiness
Qualitative essentially consist in sludge flco is rich in caused by a large amount of organic matters, therefore is considered during biochemical treatment, and sludge flco is entered
The organic matter such as polysaccharide and protein in row Mechanical Crushing, release flco, and recycled as organic carbon source in reaction tank, with reality
Existing process emission reduction；The free flora of activity can form high activity sludge flco again in biological treatment process, be given birth to consolidation system
Change efficiency, meet sludge Sources decreasing and realize the requirement that recycling sludge is utilized.
It is the shearing effect on reinforcement sludge flco periphery in existing SBR sewage treatment projects, keeps activated sludge to have
The architectural characteristic of high activity, small flco, and removal are coated on flco surface difficult degradation colloidal substance raising organic pollution and arrived
The mass transfer of flco active region, usually through enhanced aeration intensity to strengthen in pond mixing and shear effect.Air certainly will so be caused
The energy consumption of aeration is wasted.Therefore, setting up eddy flow in conventional SBR technique aeration phase releases carbon device, cutting in waste-water vortex is utilized
Shearing stress field makes most of sludge flco broken and carries out the glue of flco circumferential shear processing, removing bacterium and flco adsorption
Body material, exposure enzyme active sites, raising sludge activity.Furthermore, under rotational-flow shearing stress and centrifugal action, flco cell
The organic carbon sources such as polysaccharide and protein in interior or hole are disengaged in water body, for supplementing heterotroph degradation of contaminant (ammonia nitrogen
Deng) needed for the energy.The consumption of organic matter avoids its deposition and is converted into excess sludge discharge in biochemical system, prevents the big face of wet mud
Environmental pollution caused by product is stacked.Eddy flow need to be only set up by traditional SBR sewage disposal systems to release in carbon device, running not
Need to add medicament, energy consumption is mainly that eddy flow is released submersible sewage pump before carbon device and pressurizeed, the advantage of no coupling product low with operating cost,
And excess sludge production is reduced during biochemical treatment, Treatment of Sludge cost and cost of transportation are reduced, meets country and carries
" process emission reduction " environmental strategy advocated.
The content of the invention
The present invention provides a kind of SBR method of wastewater treatment that carbon is released including online eddy flow, in conventional SBR sewage disposal system
In set up eddy flow and release carbon device pipeline, to improve microbial activity of activated sludge, enhanced sewage handling process efficiency and realize that sludge subtracts
Amount.Apparatus structure for implementing the above method is simple, energy consumption is low and can reduce the environmental pollution that wet mud large area accumulation is caused.
In order to solve problems of the prior art, the present invention provides following technical proposals：
In the first aspect, the present invention provides a kind of SBR method of wastewater treatment that carbon is released including online eddy flow, methods described
It is included in the fill phase carried out in SBR biochemistry pools, aeration phase, precipitate phase, strains water stage and idle stage, wherein is exposing
The gas stage, which releases carbon device by eddy flow online eddy flow is carried out to the interior backflow mixed liquor in SBR biochemistry pools, releases carbon, and wherein will be through
Cross online eddy flow and release the mixed liquor of carbon and be back to SBR biochemistry pools again.
In a kind of embodiment of first aspect, the online eddy flow releases carbon and is configured to (1) utilization external energy general
Sludge floc sedimentation is broken to dissipate into smaller flocculation structure, clears up cell surface impurity and dredges nutriment biography inside the flocculation structure
Passage is passed, strengthens the interfacial mass transfer performance of the flocculation structure, the flocculation structure is kept the activity higher than sludge floc sedimentation
And biochemical property；Or (2) are under rotational-flow shearing field action, the sludge floc sedimentation cracked completely is set to discharge organic matter into water body,
Supplement microorganism and carry out electron donor needed for anti-nitration reaction, strengthened denitrification efficiency, the organic matter includes extracellular polymeric
(Extracellular Polymeric Substances, EPS), intracellular polyse and protein etc.；Or (3) release sludge flco
The organic matter put into water body is degraded by microorganisms, and hinders the increase of system biological total amount and the generation of metabolic waste, finally cuts
Subtract excess sludge production；Or (4) improve fluid turbulent degree in reaction tank, promote transfer rate between bacterial reaction product, increase micro-
The biological contact probability with Wastewater Pollutant, strengthens biochemical activity；Or any combination in (1)-(4).
In the another embodiment of first aspect, the eddy flow is released carbon device and introduced in aeration phase, and it runs simultaneously
Time sets according to sewage quality, and wherein eddy flow releases the shear action of carbon device and centrifugal action release is coated on flco surface and hole
The blocking impurity of gap, exposure enzyme active sites, improves the activity of flocculation structure, and it is 1- that wherein eddy flow, which releases carbon device inlet flow rate,
10m/s, preferably 1-7m/s.
In the another embodiment of first aspect, the formation that the eddy flow releases Strong shear effect inside carbon device comes from
In eddy flow field liquid itself flowing formed velocity gradient and barometric gradient, the eddy flow release carbon device including charging aperture, cylindrical section,
Section, overflow pipe and underflow pipe are bored, the pressure drop that the eddy flow releases between carbon device charging aperture and underflow pipe is 0.02MPa-0.5MPa, is overflow
Head piece mass flow is the 1%-10% of charging aperture flow, makes flow field shearing G>1000s-1。
In the another embodiment of first aspect, during online eddy flow releases carbon, part bacterium is in rotational-flow shearing
The lower death of effect, the organic matter discharged is degraded by heterotroph, reduces excess sludge production.
In the another embodiment of first aspect, introduce eddy flow in SBR sewage treatment process aeration phase and release carbon device,
Promote mutually to shear between rapid flow of fluid in pond, sludge flco, release is coated on flco surface impurity, promote interfacial mass transfer；
Increase the contact probability of bacterium and Wastewater Pollutant simultaneously, improve the degradation rate of pollutant, strengthen biochemical activity.
In second aspect, the present invention provides a kind of device for being used to implement the method as described in claim 1, the dress
Putting may include the setting pot for sewage disinfection treatment connected by pipeline, the SBR biochemistry pools for denitrogenation dephosphorizing, for carrying out
The eddy flow that online eddy flow releases carbon releases carbon device.
In a kind of embodiment of second aspect, the eddy flow, which releases carbon device, may include charging aperture, cylindrical section, bores section, overflows
Flow tube and underflow pipe, the range of flow that the eddy flow releases carbon device charging aperture are 1-100m3/ h, it is true according to actual mixed-liquor return amount
Determine the nominal diameter that eddy flow releases carbon device single tube, or big flow mixed liquor is solved by way of many eddy flows in parallel release carbon device single tube
Handle operating mode.
In the another embodiment of second aspect, the eddy flow, which releases carbon device, to bore section using single import or many imports
Cone angle is 4 ° -20 °.
In the another embodiment of second aspect, the eddy flow, which releases carbon device charging aperture, can use tangential inlet, import
Shape is using circular or square.
In the another embodiment of second aspect, the eddy flow releases carbon device and can use series system to increase sludge wadding
Residence time of the body in eddy flow field, to adapt to sludge floc sedimentation percentage of damage required under different operating modes.
Compared with prior art, the beneficial effects of the present invention are the rotational-flow shearing and centrifugal action that carbon device is released using eddy flow
The organic carbon sources such as polysaccharide and protein in broken activated sludge, release sludge are into water body, and supplement microorganism carries out denitrification
Carbon source degradation of contaminant needed for reaction, improves biochemical activity and mud decrement.Compared with other sludge disintegration technologies, this technical office
It is not that the excess sludge produced is cracked to manage object, but the big of biomass is prevented during biochemical treatment
Amount increase and metabolite are produced, with opening one's minds for " process emission reduction ", reduce specific resistance to filtration cost.On the other hand,
Viable microbial organisms still remain high activity under shearing field action, for wastewater efficient processing.Furthermore, eddy flow, which releases carbon utensil, energy
The characteristics of consuming low, non-secondary pollution, simple in construction, easy replacing and do not influence system stable operation.
Brief description of the drawings：
Carried out as described in detail below according to reference to accompanying drawing, the purpose of the present invention and feature will be apparent, accompanying drawing
In：
Fig. 1 is to be released according to a kind of activated sludge eddy flow of an embodiment of the invention at carbon online strengthening SBR waste water
The process chart of reason；
Fig. 2 is the half-sectional structural representation that eddy flow releases carbon device according to an embodiment of the invention；And
Fig. 3 is the positive structure diagram that eddy flow releases carbon device according to an embodiment of the invention.
Embodiment
Present inventor is passing through extensively and discovery after in-depth study, with the improvement of people's living standards,
The constituent content such as nitrogen, phosphorus increase in waste water, carbon source is not enough, so as to cause the denitrifying bacteria during biological method purification waste water to take off
Nitrogen effect is poor, and generates substantial amounts of excess sludge, severe contamination environment.Pass through extraneous methanol, glucose and sodium carbonate etc.
Although carbon source can improve Microbial denitrogenation dephosphorization biochemical activity and reduction excess sludge production, add a large amount of energy consumptions and
Resources costs.The present invention propose by eddy flow release in carbon device special flow field breaking sludge flco release EPS and intracellular carbohydrate,
The organic matters such as protein are to supplement carbon source needed for microbial degradation pollutant, and this mode not only increases the biochemistry of SBR biochemistry pools
Performance and excess sludge process emission reduction is realized, also reduce excess sludge processing cost of disposal, realize recycling sludge and stably
Change and utilize.Found based on more than, the present invention is accomplished.
The first aspect of the present invention there is provided one kind in SBR biochemical treatment system short-cut nitrification and denitrification process control
Introduce eddy flow and release carbon technique with the modified technique of consolidation system biochemical property and mud decrement, it includes below scheme：
The SBR aeration in sewage treatment stages used at present in sewage treatment plant introduce eddy flow and release carbon device, using shearing force field,
The external energies such as centrifugal force field, which break big sludge floc sedimentation, dissipates into small flocculation structure, the long-term difficult drop for being covered in cell surface of cleaning
Solution pollutant impurity simultaneously dredges nutriment transmission channels inside flco, strengthens flco interfacial mass transfer performance, makes small flocculation structure
Keep high activity and high biochemical property；
In Strong shear flow field, partial sludge flco crushes release extracellular polymeric (EPS), intracellular polyse and albumen completely
The organic matters such as matter are into water body, and for supplementing carbon source needed for microorganism anti-nitration reaction in SBR biochemistry pools, consolidation system denitrogenation is removed
Phosphorus efficiency；At the same time, in system organic matter degraded, hinder the increase of system biological amount and the generation of metabolite, prevent
Only its deposition turns into sludge discharge, finally reduces system spare sludge yield；
In addition, reaction tank mixed liquor is released after carbon device is acted on through eddy flow improves in reaction tank (particularly dead angle area) fluid
Flowing velocity, promotes transfer rate between microbial reaction product, adds the contact probability of microorganism and Wastewater Pollutant, by force
Change biochemical activity.
It is preferred that SBR sewage treatment process is sequencing batch reactor, including intake, be aerated, precipitating, strain water,
Idle totally 5 stages, the present invention introduces eddy flow in aeration phase and releases carbon device, and its synchronous operation time sets according to sewage quality；
Eddy flow releases the control of carbon device inlet flow rate in 1-10m/s, such as preferably 1-7m/s, adjusts its overfall flow by volume of entering
1%-15%, the preferably such as 1%-10% of mouth flow, import and export pressure drop and are more than 0.02MPa, for example, import and export pressure drop and be
0.02MPa-0.5MPa, it is therefore preferable to 0.05-0.1MPa, makes flow field shearing G>1000s-1, such as 2000s-1、4000s-1,
Flco surface is coated on using internal shear power and centrifugal action cleaning and block the impurity of hole to expose protease
Avtive spot, improves the activity of small flocculation structure.
It is preferred that a large amount of sludge flcos release the EPS discharged after carbon device is cracked and intracellular polyse, protein etc. by eddy flow
Organic matter is used for carbon source needed for supplementing microorganism anti-nitration reaction, solves cost height and secondary pollution that additional carbon is brought
The problems such as.
It is preferred that the present invention is that activated sludge is cracked during biochemical treatment, compared to having produced
Excess sludge is cracked, and has both reduced sludge cost of transportation, excess sludge production is reduced again, the innovation with process emission reduction
Thinking.
It is preferred that mixed liquor is returned in SBR biochemistry pools after eddy flow releases the effect of carbon device enhances fluid turbulent degree, cause
Mutually sheared between sludge flco, enhancement microbiological reaction product and dissolved oxygen (Dissolved Oxygen, DO) mass transfer are improved
Viable microbial organisms biochemical activity, can save aeration energy consumption 20% or so.
There is provided the SBR sewage disposals of eddy flow reinforcing activated sludge nitrogen removal performance and mud decrement for the second aspect of the present invention
Main device required for modified technique:Setting pot for sewage disinfection treatment, the SBR biochemistry pools for denitrogenation dephosphorizing, it is used for
The eddy flow of optimization processing technique releases carbon device.
It is preferred that the eddy flow for optimization processing technique releases carbon device range of flow for 1-100m3/ h, according to actual mixed liquor
Flow selection eddy flow releases the nominal diameter of carbon device single tube.
It is preferred that for the sludge disintegration of big flow, releasing carbon device using multiple minor diameter eddy flows and carrying out parallel operation, to protect
Demonstrate,prove sludge flco crushing efficiency.
It is preferred that eddy flow, which releases carbon device, to be 4 ° -20 ° using single import or many imports, cone section cone angle, realize that sludge height is cracked
Rate.
It is preferred that eddy flow, which releases carbon device import, uses tangential inlet, entry shape is using circular or square.
It is preferred that eddy flow, which releases carbon device, increases residence time of the sludge flco in eddy flow field using series system, with suitable
Answer sludge crushing rate required under different operating modes.
It is preferred that eddy flow, which releases carbon device, can use vertical, horizontal and oblique mounting means.
The method for describing the present invention in detail below according to accompanying drawing.
Fig. 1 is the SBR sewage disposal system modified technique flow charts according to an embodiment of the invention.Such as Fig. 1 institutes
Show, life or industrial wastewater are separated by filtration into setting pot 1, the waste water obtained after pretreatment enters SBR biochemistry pools 2, give up
Organic pollutants are degraded in SBR biochemistry pools 2 by the reaction of microorganism nitration denitrification, so as to reach purification sewage
Purpose.Eddy flow releases the bypass of carbon device and is mainly used in strengthening waste water treatment process.Its key step is as follows：In aeration phase, SBR is biochemical
Pond mixed liquor be pumped to eddy flow release velocity gradient, barometric gradient that the flowing of liquid itself in carbon device 4, eddy flow field formed and from
Sludge flco is broken into small flocculation structure, sludge flco EPS polysaccharide and protein release into water body by psychological field, after crushing
Mixed liquor is returned to organic carbon source needed for denitrification in SBR biochemistry pools 2, supplement SBR biochemistry pools 2, is subtracted with strengthened denitrification and sludge
Amount.
Fig. 2 is that an eddy flow of embodiments of the invention releases the half-sectional structural representation of carbon device.Fig. 3 is according to the present invention
The eddy flow of embodiment releases the positive structure diagram of carbon device.Eddy flow, which releases carbon device, to be included charging aperture 21, cylindrical section 22, bores section 23, overflows
Flow tube 24 and underflow pipe 25, import use the square import of tangent line, and taper is 14 °.
Embodiment
The present invention is expanded on further with reference to specific embodiment.It should be appreciated, however, that these embodiments are only used for
It is bright the present invention and be not meant to limit the scope of the invention.The test method of unreceipted actual conditions in the following example, generally
According to normal condition, or according to the condition proposed by manufacturer.
1st, implementing procedure
The present embodiment is applied to certain sewage treatment plants SBR sewage disposal systems, and influent quality is as shown in table 1.Technique
Schematic flow sheet removes scum silica frost as shown in figure 1, waste water initially enters setting pot 1, mitigates subsequent handling processing load, in aeration rank
Duan Kaiqi aerators, eddy flow is released switch pump on the branch road of carbon device 4 and automatically opened up, and sludge floc sedimentation is pumped to eddy flow and releases carbon device 4, fluid
Velocity gradient and the barometric gradient field that itself is formed are to sludge floc sedimentation shearing-crushing, and sludge floc sedimentation cracks into smaller flco knot
Structure, promotes the release such as EPS, polysaccharide, protein in sludge floc sedimentation, and the mixed liquor after crushing is back to SBR biochemistry pools 2, supplements micro-
Carbon source needed for biological denitrification reaction, with enhancement microbiological denitrogenation and mud decrement.And introducing eddy flow is released after carbon device, is added
The interfacial mass transfer and contact area of the flowing of sewage and mixability, increase activated sludge and sewage, shorten microorganism short distance nitre
Change the denitrification time.Aeration time is to strain water after 3 hours precipitate after 2h, aeration, discharges excess sludge, and this is a week
Phase.Eddy flow releases carbon device flow velocity for 5m/s, and its structural representation is as shown in Figures 2 and 3.
Certain the domestic sewage factory influent quality of table 1
2nd, operation result
The sludge flco concentration of the sewage treatment plant is 3000~4000mg/L, SV30For 45% or so, operation temperature is normal
Temperature.Influent COD is 328mg/L, and ammonia nitrogen is 38mg/L or so.Activated sludge releases carbon device effect one by eddy flow in SBR biochemistry pools
Secondary averagely to need to be spaced 1.5h, the sludge flco for realizing 35%-80% is crushed into small flocculation structure, discharged many in flco
The organic matters such as sugar, protein are utilized into water body, and sewage disposal system biochemical activity and mud decrement are improved using the present invention.
In running, water outlet COD≤50mg/L, NH4 +- N≤5mg/L, NO3- N≤15mg/L, TP<2mg/L, SS<20mg/L, can be real
Existing mud decrement 40% or so.
In terms of energy consumption, compared to traditional handicraft, the increased energy consumption of present invention institute is mainly used for supporting eddy flow to release carbon device work
Pump carries energy consumption, and the eddy flow releases the pressure loss of carbon device, and (i.e. eddy flow releases the damage between the import of carbon device and underflow opening
Lose) in below 0.15Mpa, for other sludge release carbon technique, significantly reduce energy consumption cost.
In terms of opereating specification and stability, eddy flow releases carbon device device and simple to operate, to the sludge flco of different-grain diameter all
Effectively, and from the point of view of experimental result, the mixed liquor settleability for releasing the effect of carbon device by eddy flow has small castering action, not shadow
Acoustic system stable operation.
3rd, technique effect
The technology is transformed on traditional SBR sewage treatment process, and simple in construction, simple to operate, energy consumption is low,
Non-secondary pollution during biochemical treatment, does not influence system stable operation, is realized while purified water effluent quality is improved
Journey mud decrement, so as to reduce sludge treatment cost 40% or so.And the reduction of sludge yield prevents the wet of sewage treatment plant
Place pressure and environmental pollution that the accumulation of mud large area is caused, economical and environmentally friendly benefit is brought to enterprise.
In summary be only invention preferred embodiment, not for limit the present invention practical range.It is i.e. all according to
The equivalent changes and modifications that the content of scope of the present invention patent is made, all should be the technology category of the present invention.
Claims (10)
1. a kind of SBR method of wastewater treatment that carbon is released including online eddy flow, methods described is included in entering of being carried out in SBR biochemistry pools
Water stage, aeration phase, precipitate phase, water stage and idle stage are strained, wherein releasing carbon device to SBR by eddy flow in aeration phase
Interior backflow mixed liquor in biochemistry pool carries out online eddy flow and releases carbon, and wherein will release the mixed liquor of carbon again by online eddy flow
It is back to SBR biochemistry pools.
2. the method as described in claim 1, it is characterised in that the online eddy flow, which releases carbon and is configured to (1), utilizes external energy
Sludge floc sedimentation is broken in field dissipates into smaller flocculation structure, clears up cell surface impurity and simultaneously dredges nutrients inside the flocculation structure
Matter transmission channels, strengthen the interfacial mass transfer performance of the flocculation structure, the flocculation structure is kept higher than sludge floc sedimentation
Activity and biochemical property；Or (2) are under rotational-flow shearing field action, the sludge floc sedimentation cracked completely is set to discharge organic matter to water body
In, supplement microorganism carries out electron donor needed for anti-nitration reaction, and strengthened denitrification efficiency, the organic matter includes extracellular polymeric
EPS, intracellular polyse and protein etc.；Or (3) make sludge flco discharge the organic matter into water body to be degraded by microorganisms, system is hindered
The increase and the generation of metabolic waste of the biological total amount of system, finally cut down excess sludge production；Or (4) improve fluid rapids in reaction tank
Dynamic degree, promotes the contact probability of transfer rate between bacterial reaction product, increase microorganism and Wastewater Pollutant, the biochemical effect of reinforcing
Energy；Or any combination in (1)-(4).
3. the method as described in claim 1, it is characterised in that the eddy flow is released carbon device and introduced in aeration phase, it is synchronously transported
The row time sets according to sewage quality, wherein eddy flow release carbon device shear action and centrifugal action release be coated on flco surface and
The blocking impurity of hole, exposure enzyme active sites, improves the activity of flocculation structure, and it is 1- that wherein eddy flow, which releases carbon device inlet flow rate,
10m/s, preferably 1-7m/s.
4. the method as described in claim 1, it is characterised in that the formation that the eddy flow releases Strong shear effect inside carbon device comes from
The velocity gradient and barometric gradient formed is flowed in liquid in eddy flow field itself, the eddy flow, which releases carbon device, includes charging aperture, cylinder
Section, cone section, overflow pipe and underflow pipe, the pressure drop that the eddy flow releases between carbon device charging aperture and underflow pipe is 0.02MPa-
0.5MPa, overfall mass flow is the 1%-10% of charging aperture flow, makes flow field shearing G>1000s-1。
5. the method as described in claim 1, it is characterised in that during online eddy flow releases carbon, part bacterium is cut in eddy flow
The lower death of the effect of cutting, the organic matter discharged is degraded by heterotroph, reduces excess sludge production.
6. a kind of device for being used to implement the method as described in claim 1, described device was included by being used for that pipeline is connected
The setting pot of sewage disinfection treatment, the SBR biochemistry pools for denitrogenation dephosphorizing, the eddy flow for releasing for carrying out online eddy flow carbon release carbon device.
7. device as claimed in claim 6, it is characterised in that the eddy flow release carbon device including charging aperture, cylindrical section, cone section,
Overflow pipe and underflow pipe, the range of flow that the eddy flow releases carbon device charging aperture are 1-100m3/ h, according to actual mixed-liquor return amount
Determine that eddy flow releases the nominal diameter of carbon device single tube, or big flow mixing is solved by way of many eddy flows in parallel release carbon device single tube
Liquid handles operating mode.
8. device as claimed in claim 7, it is characterised in that the eddy flow releases carbon device using single import or many imports, bores section
Cone angle is 4 ° -20 °.
9. device as claimed in claim 7, it is characterised in that the eddy flow releases carbon device charging aperture and uses tangential inlet, import
Shape is using circular or square.
10. device as claimed in claim 6, it is characterised in that the eddy flow releases carbon device and uses series system to increase sludge
Residence time of the flco in eddy flow field, to adapt to sludge floc sedimentation percentage of damage required under different operating modes.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108046550A (en) * | 2017-11-28 | 2018-05-18 | 四川理工学院 | A kind of excess sludge ultrasound rotational flow, which is combined, cracks technique |
| CN110183060A (en) * | 2019-06-24 | 2019-08-30 | 上海华畅环保设备发展有限公司 | Compact aerobic/anaerobic technique waste water handles eddy flow intensifying method and device |
| CN111233146A (en) * | 2020-01-16 | 2020-06-05 | 华东理工大学 | Sludge rotational flow sorting activation treatment method and device |
| CN114426329A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Method and device for enhancing nitrogen and phosphorus removal of SBR system |
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| CN104108794A (en) * | 2014-08-11 | 2014-10-22 | 吕慧 | Wastewater treatment device and method of sequencing batch A/O (Anaerobic/Oxic) linked system for realizing partial nitrification of wastewater |
| CN105565491A (en) * | 2014-10-16 | 2016-05-11 | 中国石油化工股份有限公司 | Activated sludge treatment method and system for wastewater |
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| CN104108794A (en) * | 2014-08-11 | 2014-10-22 | 吕慧 | Wastewater treatment device and method of sequencing batch A/O (Anaerobic/Oxic) linked system for realizing partial nitrification of wastewater |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046550A (en) * | 2017-11-28 | 2018-05-18 | 四川理工学院 | A kind of excess sludge ultrasound rotational flow, which is combined, cracks technique |
| CN110183060A (en) * | 2019-06-24 | 2019-08-30 | 上海华畅环保设备发展有限公司 | Compact aerobic/anaerobic technique waste water handles eddy flow intensifying method and device |
| CN111233146A (en) * | 2020-01-16 | 2020-06-05 | 华东理工大学 | Sludge rotational flow sorting activation treatment method and device |
| CN114426329A (en) * | 2020-10-10 | 2022-05-03 | 中国石油化工股份有限公司 | Method and device for enhancing nitrogen and phosphorus removal of SBR system |
| CN114426329B (en) * | 2020-10-10 | 2023-01-10 | 中国石油化工股份有限公司 | Method and device for enhancing nitrogen and phosphorus removal of SBR system |
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