CN108275768A - Hydrolysis acidification reaction tank/device and hydrolysis acidification technique - Google Patents
Hydrolysis acidification reaction tank/device and hydrolysis acidification technique Download PDFInfo
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- CN108275768A CN108275768A CN201710010903.1A CN201710010903A CN108275768A CN 108275768 A CN108275768 A CN 108275768A CN 201710010903 A CN201710010903 A CN 201710010903A CN 108275768 A CN108275768 A CN 108275768A
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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
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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
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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Abstract
The invention belongs to biological wastewater treatment fields, provide a kind of hydrolysis acidification reaction tank/device and hydrolysis acidification technique, hydrolysis acidification reaction tank/the device is the integral structure being composed in series by three cells, party wall between adjacent cell, the bottom of each partition wall is equipped with deflector hole, and adjacent cell is made to be connected to；Liquid stream blender is equipped in each cell, top is equipped with inlet well；The top of the hydrolysis acidification reaction tank/device includes water inlet pipe, and the top of first unit lattice and third unit lattice is additionally provided with water distribution/outlet canal, effluent weir etc., and lower part is equipped with mud-collecting well etc..Technique combination hydrolysis acidification reaction tank/device of the present invention, alternate change water entry can accordingly improve the sludge loading of each section of system, are conducive to sludge and retain, and then improve the settling property of sludge.
Description
Technical field
The invention belongs to biological wastewater treatment fields, and in particular, to a kind of hydrolysis acidification reaction tank/device, and use
The hydrolysis acidification technique of the hydrolysis acidification reaction tank/device.
Background technology
In field of waste water treatment, hydrolysis acidification can convert the non-solubility organic matter in sewage to dissolved organic matter,
Larger molecular organics chain rupture is converted to small molecule easily biodegradable organics, to improve the biodegradability of sewage.According to microorganism
Growth pattern, reactor for hydrolysis and acidification can be divided into suspension growth type (activated sludge process), apposition growth type (contact oxidation method)
And composite growth type (suspend and apposition growth microorganism exists simultaneously).
Suspension growth type reactor is divided into is mixed with precipitating type hydrolytic tank and mud method without precipitation pulse entry/exit ability of swimming for mud method
Two kinds of hydrolytic tank.
Mud method be mixed in the pond of precipitating type hydrolytic tank using stirring in slurry device come realize mixed liquor circulate and
Muddy water is promoted to mix；Precipitation unit and sludge recirculation system is arranged to maintain the sludge concentration in hydrolysis acidification pool in outlet system.
As shown in Figure 1, the hydrolytic tank needs that individual sedimentation basin is arranged, and configure the facilities such as sludge reflux pump, floor space and
Power consumption is larger.
Mud method uses pulse water distribution form, uniformity of water distribution and muddy water mixing to adopt without precipitation pulse entry/exit ability of swimming hydrolytic tank
It is controlled with pulse water distributing device, the water into water distributor is evenly distributed in bottom of pond by pipe-line system, realizes that the muddy water in bottom of pond portion is acute
Strong mixing.The biological sludge of high activity is filled in the hydrolytic tank, lower part is sludge bed, and top is suspended sludge layer, main
Function is that pending waste water is uniformly distributed into reactor bottom by pulse water distribution equipment, isolates the top that stream area is located at reaction zone
Portion, waste water are completed to come into full contact with and react with anoxic sludge during up-flow.The drag losses of the hydrolytic tank water distribution system compared with
Greatly, in terms of actual motion effect, effluent quality is not sufficiently stable.
Apposition growth type belongs to embrane method without precipitating type hydrolytic tank, is similar to aerobic activated sludge contact oxidation method, feature
It is to install filler additional in hydrolytic tank, apposition growth hydrolysis acidification microorganism is degraded and decomposing organic matter on filler.It is described to fill out
Material is usually soft-filler and elastic filler, wherein soft-filler biofilm is easy, but the easy balling of long-play, active surface
Product declines, and biomembrane is not easy to update, and long-play causes efficiency to decline；Elastic filler not easy to be filmed, specific surface area compared with
Small, the microbial biomass that can adhere to is few, causes treatment effeciency not high.In addition, filled pulling flow type hydrolytic tank is in actual operation
Since biofilm is uneven or hydraulic action, it is easy to form flow short circuit, causes practical hydraulic detention time to reduce, and then at influence
Effect is managed, while making the problem for the treatment of process complexity there is also filler is replaced.
Composite growth type is to grow microbial suspension to be combined with apposition growth, and it is dirt generally to use up flow type, lower part
Mud bed, filler is placed on top makes attached growth of microorganisms, isolates stream area and is located at the top of reaction zone, although with mud method without precipitation
The advantages of with apposition growth hydrolytic tank, but the shortcomings that can not also overcome apposition growth type hydrolytic tank.
Invention content
In order to solve above-mentioned technical problem of the existing technology, the purpose of the present invention is to provide a kind of hydrolysis acidification is anti-
Ying Chi/device and a kind of hydrolysis acidification technique.
According to the first aspect of the invention, the present invention provides hydrolysis acidification reaction tank/device, hydrolysis acidification reactions
Pond/device is the integral structure being composed in series by three cells, and three cells are followed successively by first unit according to series sequence
Lattice, second unit lattice, third unit lattice；
The bottom of party wall between adjacent cell, each partition wall is equipped with deflector hole, and adjacent cell is made to connect
It is logical；
Liquid stream blender is equipped in each cell, top is equipped with inlet well；Hydrolysis acidification reaction tank/the device it is upper
Side includes water inlet pipe, sets that there are three inlet valve/gates on the water inlet pipe, is respectively used to the water filling of corresponding unit lattice；
The top of the first unit lattice and third unit lattice is additionally provided with water distribution/outlet canal, effluent weir, wet well and water outlet
Pipe, lower part are equipped with mud-collecting well and the sludge pipe with mud valve, the water distribution/outlet canal and corresponding inlet well and wet well
Connection, the effluent weir are arranged in the side of water distribution/outlet canal.
According to the second aspect of the invention, the present invention provides a kind of using above-mentioned hydrolysis acidification reaction tank/device
Hydrolysis acidification technique, wherein the technique continuous flow, and constant water level is run；
The technique includes the period 1 and second round alternately；
The period 1 includes operation phase I and operation phase II,
Operation phase I：First unit lattice are inlet unit lattice, and first unit lattice and second unit lattice are to be stirred to react
Area,
Operation phase II：Second unit lattice are inlet unit lattice, and first unit lattice are to staticly settle area, second unit lattice
To be stirred to react area,
In two operation phase, third unit lattice are exhalant region；
The second round includes operation phase III and operation phase IV,
Operation phase III：Third unit lattice are inlet unit lattice, and third unit lattice and second unit lattice are that stirring is anti-
Area is answered,
Operation phase IV：Second unit lattice are inlet unit lattice, and third unit lattice are to staticly settle area, second unit lattice
To be stirred to react area,
In two operation phase, first unit lattice are exhalant region.
Hydrolysis acidification reaction tank/device of the present invention can realize following effect：
1) device is integrated, compact-sized, and each unit lattice share pool wall, saves civil engineering costs and takes up an area face
Product；2) it is not provided with individual sedimentation basin and sludge is collected and return-flow system, sludge reflux facility can be saved, reduce investment outlay and run
Expense；3) run time in each stage can be adjusted according to actual motion effect, operation is flexible.
The technique alternate change water entry of the present invention, the microorganism (activated sludge) in reactor is along cell with flow
Direction change alternately migrates, and the corresponding sludge loading for improving each section of system is conducive to sludge and retains, and then improves the settleability of sludge
Energy.
Description of the drawings
Exemplary embodiment is described in more detail in conjunction with the accompanying drawings, the above and other purposes of the present invention,
Feature and advantage will be apparent.
Fig. 1 is a kind of hydrolysis acidification technological process of prior art.
Fig. 2 a are the vertical view according to the hydrolysis acidification reaction tank of exemplary embodiment.
Fig. 2 b are the sectional view according to the hydrolysis acidification reaction tank of exemplary embodiment.
Fig. 3 a to Fig. 3 d are the different phase schematic diagram according to the hydrolysis acidification reaction process of exemplary embodiment.
Reference sign
A, A reaction grids area/exhalant region；B, B reaction grids area；C, C reaction grids area/exhalant region；
1, water inlet pipe；2, A lattice inlet valve/gate；3, A lattice inlet well；
4, A lattice water distribution/outlet canal；5, A lattice wet well；6, A lattice liquid stream blender；
7, A lattice outlet pipe；8, A lattice sludge pipe；9, A grillages slurry valve；
10, A lattice effluent weir；11, A lattice mud-collecting well；12, A lattice deflector hole；
13, A/B lattice partition wall；14, B lattice liquid stream blender；15, B lattice inlet valve/gate；
16, B lattice inlet well；17, C lattice liquid stream blender；18, C lattice mud-collecting well；
19, C lattice effluent weir；20, C grillages slurry valve；21, C lattice deflector hole；
22, B/C lattice partition wall；23, C lattice inlet valve/gate；24, C lattice inlet well；
25, C lattice water distribution/outlet canal；26, C lattice wet well；27, C lattice outlet pipe；
28, C grillages slurry valve；29, C lattice sludge pipe.
Specific implementation mode
The preferred embodiment of the present invention is more fully described below with reference to accompanying drawings.Although showing the present invention in attached drawing
Preferred embodiment, however, it is to be appreciated that may be realized in various forms the present invention without should be by embodiments set forth herein
It is limited.On the contrary, these embodiments are provided so that the present invention is more thorough and complete, and can be by the model of the present invention
It encloses and is completely communicated to those skilled in the art.
According to the first aspect of the invention, the present invention provides hydrolysis acidification reaction tank/device, hydrolysis acidification reactions
Pond/device is the integral structure being composed in series by three cells, and three cells are followed successively by first unit according to series sequence
Lattice, second unit lattice, third unit lattice；
The bottom of party wall between adjacent cell, each partition wall is equipped with deflector hole, and adjacent cell is made to connect
It is logical；
Liquid stream blender is equipped in each cell, top is equipped with inlet well；Hydrolysis acidification reaction tank/the device it is upper
Side includes water inlet pipe, sets that there are three inlet valve/gates on the water inlet pipe, is respectively used to the water filling of corresponding unit lattice；
The top of the first unit lattice and third unit lattice is additionally provided with water distribution/outlet canal, effluent weir, wet well and water outlet
Pipe, lower part are equipped with mud-collecting well and the sludge pipe with mud valve, the water distribution/outlet canal and corresponding inlet well and wet well
Connection, the effluent weir are arranged in the side of water distribution/outlet canal.
Preferably, multiple equally distributed deflector holes are equipped in the bottom of each partition wall.
As the illustrative hydrolysis acidification reaction tank/device, as shown in figures 2 a and 2b：Hydrolysis acidification reaction tank/the device
For the integral structure being composed in series by A cells (A lattice), unit B lattice (B lattice) and C cell lattice (C lattice), adjacent cell
Between party wall, the bottom of each partition wall is equipped with multiple equally distributed deflector holes, adjacent cell is made to be connected to；It is each single
Liquid stream blender is equipped in first lattice, top is equipped with inlet well.
The top of the hydrolysis acidification reaction tank/device includes water inlet pipe 1, is provided with A lattice inlet valve 2, B lattice inlet valve 15
With C lattice inlet valve 23, it is respectively used to the water filling of control respective cells.
The top of A cells and C cell lattice further respectively has：A lattice water distribution/outlet canal 4 and C lattice water distribution/outlet canal 25, A
Lattice effluent weir 10 and C lattice effluent weir 19, A lattice wet well 5 and C lattice wet well 26 and A lattice outlet pipe 7 and C lattice outlet pipe 27.
In addition, A cells and C cell lattice further respectively have sludge drainage system：It is all provided in the lower part of A cells and C cell lattice
There are mud-collecting well and the sludge pipe with mud valve.
In the A cells and C cell lattice, respective water distribution/outlet canal is connected to corresponding inlet well and wet well,
Effluent weir is arranged in the side of water distribution/outlet canal.
According to the present invention, each cell is equipped with liquid stream blender, and in reaction zone and area is staticly settled according to cell
Or the operating status between exhalant region, liquid stream blender are converted between opening, stopping.
According to the second aspect of the invention, the present invention provides a kind of using above-mentioned hydrolysis acidification reaction tank/device
Hydrolysis acidification technique, wherein the technique continuous flow, and constant water level is run；
The technique includes the period 1 and second round alternately；
The period 1 includes operation phase I and operation phase II,
Operation phase I：First unit lattice are inlet unit lattice, and first unit lattice and second unit lattice are to be stirred to react
Area,
Operation phase II：Second unit lattice are inlet unit lattice, and first unit lattice are to staticly settle area, second unit lattice
To be stirred to react area,
In two operation phase, third unit lattice are exhalant region；
The second round includes operation phase III and operation phase IV,
Operation phase III：Third unit lattice are inlet unit lattice, and third unit lattice and second unit lattice are that stirring is anti-
Area is answered,
Operation phase IV：Second unit lattice are inlet unit lattice, and third unit lattice are to staticly settle area, second unit lattice
To be stirred to react area,
In two operation phase, first unit lattice are exhalant region.
In the present invention, when inlet unit lattice be first unit lattice or third unit lattice when, sewage (waste water) via water inlet pipe,
Inlet well, water distribution/outlet canal and effluent weir enter the cell, (when inlet unit lattice are second unit lattice in the case of other
When), sewage enters the inlet unit lattice via water inlet pipe and inlet well.
As being stirred to react in the cell in area, activated sludge is stirred with sewage to react.
In as the cell in area is staticly settled, mud mixture is staticly settled.
In the cell as exhalant region, mud mixture is staticly settled, and the clarified solution that upper layer obtains passes through
Effluent weir, water distribution/outlet canal and wet well discharge.
It in the present invention, is stirred to react in area described, opens the liquid stream blender；In exhalant region and area is staticly settled,
Close the liquid stream blender.
Hydrolysis acidification reaction tank/device of the present invention belongs to sludge mixed zone precipitating type, and it is mixed that three cells can be used as sludge
That closes is stirred to react area's (acidification reaction is hydrolyzed), two terminal units be also used as staticly settling area or exhalant region (into
Row staticly settles and isolates supernatant liquid).The periodical switching of Inlet and outlet water can make hydrolysising microorganism not go out system, be conducive to
It is retained, and compared with routine hydrolysis reaction tank/device, that eliminates sludge reflux facilities.I.e. each operation phase hydrolysising microorganism exists
Unit compartment is migrated with flow, does not go out system, is not necessarily to sludge reflux facility.
Specifically, which includes following below scheme：
Period 1：
Operation phase I：First unit lattice are intake, the water outlet of third unit lattice：
Waste water enters from first unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, passes through deflector hole
Continue hydrolysis acidification reaction into second unit lattice, enters back into third unit lattice and carry out standing separation, isolated is clear
Clear liquid is discharged；
Operation phase II：Second unit lattice are intake, the water outlet of third unit lattice：
Waste water enters from second unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, passes through deflector hole
Standing separation, and the clarified solution discharge that the part obtains are carried out into third unit lattice；First unit lattice mud mixture is in
Standing separation state；
Second round：
Operation phase III：Third unit lattice are intake, the water outlet of first unit lattice：
Waste water enters from third unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, passes through deflector hole
Continue hydrolysis acidification reaction into second unit lattice, enters back into first unit lattice and carry out standing separation, isolated is clear
Clear liquid is discharged；
Operation phase IV：Second unit lattice are intake, the water outlet of first unit lattice：
Waste water enters from second unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, passes through deflector hole
Standing separation, and the clarified solution discharge that the part obtains are carried out into first unit lattice；Third unit lattice mud mixture is in
Standing separation state.
The two above period is alternately.
As the hydrolysis acidification technique of the illustrative present invention, using hydrolysis acidification reaction tank/device shown in Fig. 2 a and 2b
Hydrolysis acidification technique is as shown in Fig. 3 a to 3d：
Pending waste water from A lattice → B lattice → C lattice outflow, starts the liquid stream blender of A lattice, B lattice, plays promotion successively
The effect of hydrolysis acidification, last mud mixture reach C lattice exhalant regions, and C lattice liquid stream blenders are stopped transport, and standing solid-liquid is at
Discrete state avoids hydrolyzing sludge from being lost in, and the primary water precipitated is discharged by effluent weir.In operational process, in A lattice, B lattice
Sludge flow to C lattice with water and accumulate, to prevent deposition in C lattice excessive, after running a cycle, be changed water (flow) direction
Next period, be changed to flow to A lattice through B lattice by the water inlet of C lattice, A lattice are used as exhalant region, A lattice to stop stirring, and obtained clarified solution leads to
Cross the outflow of A lattice effluent weirs.Remaining sludge can be expelled to sludge concentration tank from A, C respectively.Two periods are alternately.Specifically
Ground,
Fig. 3 a to 3d are the schematic diagram of operation phase I to IV respectively, wherein the operation phase I to II completes a cycle, fortune
Row order section III to IV completes another period.
Operation phase I：A lattice are intake, the water outlet of C lattice
Waste water comes from water inlet pipe 1, and the inlet valve/gate and liquid stream blender, waste water for opening A lattice pass through inlet well and water distribution
Trepanning between canal enters distributing channel, and the effluent weir through being connect with distributing channel is even into reaction zone a.In reaction zone a, liquid stream is stirred
Mixing the stirring of device makes waste water be uniformly mixed into row hydrolysis acidification with activated sludge to react, then passes through the water conservancy diversion of A/B lattice partition walls bottom
Hole enters B reaction grids area b.
In reaction zone b, mud mixture continues hydrolysis acidification by the stirring of liquid stream blender and reacts, then through B/C
The deflector hole of lattice partition wall bottom enters C lattice exhalant regions c；Wherein, the sludge of pond embedded biometric flco can be achieved in the stirring in A/B lattice
With coming into full contact with for waste water, it is the good growth of biological respinse creation, reservation and the reaction condition of microorganism, realizes the water of waste water
Solve acidification reaction.
In exhalant region c, liquid stream blender is in stoppage in transit state, and mud mixture enters from bottom of pond, what is flowed up
Sludge is detached by gravitational settling with water realization in the process, and isolated clarified solution flows into outlet canal by effluent weir, then
It flows into wet well and is flowed out through outlet pipe.
In operational process, with the continuity of time, the sludge that biotic population is carried in A lattice is gradually migrated to B lattice, in B lattice
Sludge is gradually migrated to C lattice, is promoted without power, in C lattice the increase of sludge quantity so that mud moisture interface is gradually risen, reach certain
Enter the operation phase II after degree.
Operation phase II：B lattice are intake, the water outlet of C lattice
Open B lattice inlet valve/gate, for liquid stream blender still in operating status, waste water enters B lattice, by B lattice into
Well enters B reaction grids area b.In B reaction grids area b, waste water is set uniformly to be mixed with activated sludge by the stirring of liquid stream blender
It closes, acidification reaction is hydrolyzed, then C lattice exhalant regions c is entered by the deflector hole of B/C lattice partition walls bottom.
In exhalant region c, liquid stream blender passes through the gravity of sludge still in stoppage in transit state, mud mixture in this area
Sedimentation realizes that mud-water separation, isolated clarified solution flow into outlet canal by effluent weir, then flows into wet well and through water outlet
Pipe flows out.
The stage while B lattice inlet valves are opened, closes A lattice inlet valve and its liquid stream blender, and A lattice are to staticly settle
Area, mud mixture sludge during flowing up is detached by gravitational settling with water realization, but A lattice liquid level and B lattice, C
Lattice are identical, and three lattice keep permanent liquid level operation.
Operation phase III：C lattice are intake, the water outlet of A lattice
Open C lattice inlet valves/gate and liquid stream blender, waste water by the trepanning between C lattice inlet well and distributing channel into
Enter distributing channel, reaction zone c is uniformly entered by the effluent weir being connect with distributing channel.
In reaction zone c, waste water is set with activated sludge to be uniformly mixed into row hydrolysis acidification by the stirring of liquid stream blender anti-
It answers, then B reaction grids area b is entered by the deflector hole of B/C lattice partition walls bottom.
In B reaction grids area b, mud mixture continues hydrolysis acidification by the stirring of liquid stream blender and reacts, then passes through
The A lattice deflector holes of A/B lattice partition walls bottom enter A lattice exhalant regions a.
In exhalant region a, liquid stream blender is in stoppage in transit state, and mud mixture enters from bottom of pond, what is flowed up
Sludge is detached by gravitational settling with water realization in the process, and isolated clarified solution flows into distributing channel by effluent weir, then
It flows into wet well and is flowed out through outlet pipe.
In operational process, with the continuity of time, the sludge comprising biotic population is gradually migrated to B lattice in C lattice, in B lattice
Sludge is gradually migrated to A lattice, is promoted without power, in A lattice the increase of sludge quantity so that mud moisture interface is gradually risen, reach certain
Enter the operation phase IV after degree.
Operation phase IV：B lattice are intake, the water outlet of A lattice
B lattice inlet valve/gate is opened, liquid stream blender passes through B lattice inlet wells still in operating status, waste water into B lattice
Into B reaction grids area b.In B reaction grids area b, waste water is set uniformly to be mixed with activated sludge by the stirring of liquid stream blender, into
Row hydrolysis acidification reacts, then enters A lattice exhalant regions a by the deflector hole of A/B lattice partition walls bottom.
In exhalant region a, liquid stream blender passes through the gravity of sludge still in stoppage in transit state, mud mixture in this area
Sedimentation realizes that mud-water separation, isolated clarified solution enter outlet canal by effluent weir, flows into wet well and through outlet pipe stream
Go out.
At this stage, while B lattice inlet valve is opened, C lattice inlet valve and its liquid stream blender are closed, C lattice are that standing is heavy
Shallow lake area, mud mixture sludge during flowing up are detached by the realization of gravitational settling and water, but C lattice liquid level and A lattice,
C lattice are identical, and three lattice keep permanent liquid level operation.
In the process of running when the total sludge quantity of hydrolysis acidification reaction zone is excessive, sludge concentration is more than when requiring, to open its phase
Certain sludge quantity is discharged in the mud valve answered, to keep the sludge concentration being suitble in reactor.
In the present invention, when as exhalant region or staticly settling area, when mud mixture needs to ensure enough mud-water separations
Between, create good condition to react and precipitate for hydrolysis acidification.
According to the present invention, the surface loading of the exhalant region is preferably 0.6~1m3/m2·h。
According to the present invention, the available depth of each unit lattice is preferably 4~6m.
According to the present invention, the overcurrent flow velocity of the deflector hole is usually more than 0.1m/s, preferably 0.05~0.1m/s.
In addition, the concrete operations condition of the technique is known in the art, details are not described herein by the present invention.
According to the present invention, the switching of Inlet and outlet water preferably passes through the procedure auto-control of setting.
Below by embodiment, the present invention will be described in detail, but the present invention should not be limited by the examples.
Embodiment
In certain sewage disposal, 800m is handled3The trade effluent of/h, structure such as Fig. 2 a of the hydrolysis acidification reaction tank of use
Shown in 2b, operational mode such as Fig. 3 a to 3d of technique.
The pond available depth is 6m, wherein mud mixture is in the residence time of A lattice, C lattice with precipitation
4.3 hours, be that biological respinse and precipitation create good condition to ensure the enough mud-water separation time；It is being used only as stirring
The B lattice residence times of reaction zone are 4 hours.It can guarantee to have when the conduct of two lattice is stirred to react area, a lattice are exhalant region above and fill
The hydrolysis time of foot, microorganism migrates with water (flow) direction compartment in pond, promotes the formation of biological floe or granule sludge, protects
Demonstrate,prove treatment effect；Each partition wall is arranged the deflector hole of 8 0.55m × 0.55m, area and be 2.42m2, control overcurrent flow velocity
No more than 0.1m/s, the inhomogeneities of flow distribution when overcurrent is made to minimize；It is equipped with out in cell A/C with precipitation
Mill weir, to ensure that load is not more than 1.9L/ (sm) on effluent weir, the surface loading of exhalant region is 0.85m3/m2·h。
The control model that hydrolysis acidification pool designs alternate run is as follows：
Operation phase I：Sewage initially enters A lattice, and the stirring of A lattice, the stirring of B lattice, C lattice are as sedimentation basin water outlet, the operation of this section
Time is 3 hours.During plug-flow, the hydrolyzing sludge in A lattice is introduced into B lattice, enters back into C lattice, realizes sludge in each pond
It redistributes, is finally stood in C lattice, carry out mud-water separation, the clarified solution obtained after precipitation is by discharges such as effluent weirs, and sludge is then
It is retained in C lattice, avoids sludge loss.
Operation phase II：Sewage enters B lattice, and A lattice stop stirring, are converted to and staticly settle area, B lattice continue to stir, and C lattice are still
As exhalant region, this section of run time is 1 hour.So far, upper half period end of run.
Operation phase III：Sewage initially enters C lattice, and the stirring of C lattice, the stirring of B lattice, A lattice are as sedimentation basin water outlet, the operation of this section
Time is 3 hours.During plug-flow, the hydrolyzing sludge in C lattice is introduced into B lattice, enters back into A lattice, realizes sludge in each pond
It redistributes, is finally stood in A lattice, carry out mud-water separation, the clarified solution obtained after precipitation is by discharges such as effluent weirs, and sludge is then
It is retained in A lattice, avoids sludge loss.
Operation phase IV：Sewage enters B lattice, and C lattice stop stirring, switch to stand, and B lattice continue to stir, and A lattice are still discharged, this
Section run time is 1 hour.
Following table 1 shows the state of each unit lattice difference operation phase in the technique.
Table 1
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of the principle of disclosure of the invention, it is easy to make various types of improvement or deformation, be not limited solely to the above-mentioned tool of the present invention
Body embodiment, therefore previously described mode is only preferred, and not restrictive meaning.
Claims (9)
1. a kind of hydrolysis acidification reaction tank/device, which is characterized in that the hydrolysis acidification reaction tank/device is to be connected by three cells
The integral structure of composition, three cells are followed successively by first unit lattice, second unit lattice, third unit according to series sequence
Lattice；
The bottom of party wall between adjacent cell, each partition wall is equipped with deflector hole, and adjacent cell is made to be connected to；
Liquid stream blender is equipped in each cell, top is equipped with inlet well；It wraps the top of the hydrolysis acidification reaction tank/device
Water inlet pipe is included, is set on the water inlet pipe there are three inlet valve/gate, is respectively used to the water filling of corresponding unit lattice；
The top of the first unit lattice and third unit lattice is additionally provided with water distribution/outlet canal, effluent weir, wet well and outlet pipe,
Lower part is equipped with mud-collecting well and the sludge pipe with mud valve, and the water distribution/outlet canal connects with corresponding inlet well and wet well
Logical, the effluent weir is arranged in the side of water distribution/outlet canal.
2. a kind of hydrolysis acidification technique using hydrolysis acidification reaction tank/device described in claim 1, which is characterized in that the work
Skill continuous flow, and constant water level is run；
The technique includes the period 1 and second round alternately；
The period 1 includes operation phase I and operation phase II,
Operation phase I：First unit lattice are inlet unit lattice, and first unit lattice and second unit lattice are to be stirred to react area,
Operation phase II：Second unit lattice are inlet unit lattice, and first unit lattice are to staticly settle area, and second unit lattice are to stir
Reaction zone is mixed,
In two operation phase, third unit lattice are exhalant region；
The second round includes operation phase III and operation phase IV,
Operation phase III：Third unit lattice are inlet unit lattice, and third unit lattice and second unit lattice are to be stirred to react area,
Operation phase IV：Second unit lattice are inlet unit lattice, and third unit lattice are to staticly settle area, and second unit lattice are to stir
Reaction zone is mixed,
In two operation phase, first unit lattice are exhalant region.
3. hydrolysis acidification technique according to claim 2, wherein
When inlet unit lattice are first unit lattice or third unit lattice, sewage is via water inlet pipe, inlet well, water distribution/outlet canal
Enter the cell with effluent weir, in the case of other, sewage enters the inlet unit lattice via water inlet pipe and inlet well；
As being stirred to react in the cell in area, activated sludge is stirred with sewage to react；As staticly settling area
In cell, mud mixture is staticly settled；In the cell as exhalant region, it is heavy that mud mixture stand
It forms sediment, and the clarified solution that upper layer obtains is by effluent weir, water distribution/outlet canal and wet well discharge.
4. hydrolysis acidification technique according to claim 2, wherein be stirred to react in area described, open the liquid stream and stir
Mix device；In exhalant region and area is staticly settled, closes the liquid stream blender.
5. hydrolysis acidification technique according to claim 2, wherein the technique includes following below scheme：
Period 1：
Operation phase I：First unit lattice are intake, the water outlet of third unit lattice：
Waste water enters from first unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, entered by deflector hole
Second unit lattice continue hydrolysis acidification reaction, enter back into third unit lattice and carry out standing separation, isolated clarified solution
Discharge；
Operation phase II：Second unit lattice are intake, the water outlet of third unit lattice：
Waste water enters from second unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, entered by deflector hole
Third unit lattice carry out standing separation, and the clarified solution discharge that the part obtains；First unit lattice mud mixture, which is in, to be stood
Discrete state；
Second round：
Operation phase III：Third unit lattice are intake, the water outlet of first unit lattice：
Waste water enters from third unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, entered by deflector hole
Second unit lattice continue hydrolysis acidification reaction, enter back into first unit lattice and carry out standing separation, isolated clarified solution
Discharge；
Operation phase IV：Second unit lattice are intake, the water outlet of first unit lattice：
Waste water enters from second unit lattice, is uniformly mixed with activated sludge and carries out hydrolysis acidification and reacted, entered by deflector hole
First unit lattice carry out standing separation, and the clarified solution discharge that the part obtains；Third unit lattice mud mixture, which is in, to be stood
Discrete state.
6. the hydrolysis acidification technique according to claim 2 or 5, wherein the switching of Inlet and outlet water is automatic by the program set
Control.
7. the hydrolysis acidification technique according to claim 2 or 5, wherein the surface loading of the exhalant region is 0.6~1m3/
m2·h。
8. the hydrolysis acidification technique according to claim 2 or 5, wherein the available depth of each unit lattice is 4~6m.
9. the hydrolysis acidification technique according to claim 2 or 5, wherein the overcurrent flow velocity of the deflector hole be 0.05~
0.1m/s。
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1251290A (en) * | 1983-09-09 | 1989-03-14 | Alberto Cohen | Process and apparatus for anaerobic fermentation of solid wastes in water in two phases |
| CN101962223A (en) * | 2010-08-06 | 2011-02-02 | 无锡市政设计研究院有限公司 | Method for hydrolyzing and acidizing sewage and hydrolysis acidification pool |
| CN201793423U (en) * | 2010-08-06 | 2011-04-13 | 无锡市政设计研究院有限公司 | Hydrolysis acidification tank |
| CN102557247A (en) * | 2011-12-10 | 2012-07-11 | 江苏凌志市政工程设计研究院有限公司 | Improved hydrolytic acidification tank |
| CN202358960U (en) * | 2011-12-10 | 2012-08-01 | 江苏凌志市政工程设计研究院有限公司， | Improved hydrolysis acidification pool |
| CN105174487A (en) * | 2015-07-31 | 2015-12-23 | 浙江省环境保护科学设计研究院 | Composite hydrolysis acidification reactor and technology |
-
2017
- 2017-01-06 CN CN201710010903.1A patent/CN108275768A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1251290A (en) * | 1983-09-09 | 1989-03-14 | Alberto Cohen | Process and apparatus for anaerobic fermentation of solid wastes in water in two phases |
| CN101962223A (en) * | 2010-08-06 | 2011-02-02 | 无锡市政设计研究院有限公司 | Method for hydrolyzing and acidizing sewage and hydrolysis acidification pool |
| CN201793423U (en) * | 2010-08-06 | 2011-04-13 | 无锡市政设计研究院有限公司 | Hydrolysis acidification tank |
| CN102557247A (en) * | 2011-12-10 | 2012-07-11 | 江苏凌志市政工程设计研究院有限公司 | Improved hydrolytic acidification tank |
| CN202358960U (en) * | 2011-12-10 | 2012-08-01 | 江苏凌志市政工程设计研究院有限公司， | Improved hydrolysis acidification pool |
| CN105174487A (en) * | 2015-07-31 | 2015-12-23 | 浙江省环境保护科学设计研究院 | Composite hydrolysis acidification reactor and technology |
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