CN105776533B - Box-cage type moving bed modified ABR reactors and its startup method - Google Patents
Box-cage type moving bed modified ABR reactors and its startup method Download PDFInfo
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- CN105776533B CN105776533B CN201610304793.5A CN201610304793A CN105776533B CN 105776533 B CN105776533 B CN 105776533B CN 201610304793 A CN201610304793 A CN 201610304793A CN 105776533 B CN105776533 B CN 105776533B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/284—Anaerobic digestion processes using anaerobic baffled reactors
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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
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- C02F3/2853—Anaerobic digestion processes using anaerobic membrane bioreactors
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Abstract
The present invention provides a kind of box-cage type moving bed modified ABR reactors and its start method, which to be made of 3~6 compartments, and each compartment includes upward flow cell compartment and lower to stream cell compartment, upward flow cell compartment and it is lower to the ratio between volume of stream cell compartment be 3~5：1, wherein, boxes and baskets are equipped in upward flow cell compartment, equipped with filler in boxes and baskets, transmission device are equipped at the top of compartment, transmission device is connected by cable wire with boxes and baskets.The startup method of the present invention forms seed sludge before this, then according to the principle of box-cage type moving bed ABR reactors cultivate at times, tame.The ABR reactors of the present invention substantially reduce the startup time of ABR, improve the biological treatment efficiency of device.
Description
Technical field
The invention belongs to waste water treatment process technical fields, and in particular to a kind of box-cage type moving bed modified ABR reactions
Device and its startup method.
Background technology
Anaerobic baffled reactor（ABR-Anaerobic Baffled Reactor）It is in the reactor along current side
To a series of baffle plates are set, reactor is separated into the reative cell of several series connection, each reative cell can be seen as one
Relatively independent up-flow sludge bed system.Waste water advances after entering reactor along baffling above and below deflector, passes sequentially through each
The Sludge Bed of reative cell, the organic substrate in waste water come into full contact with to be gone by each reative cell and with microorganism therein
It removes.ABR is that last century early eighties are developed by the MeCarty and its partner of Stanford universities of the U.S..ABR quilts
Referred to as third generation anaerobic reactor, not only biosolids interception capacity is strong, but also waterpower mixing condition is good.
The startup of anaerobic reactor is often referred to newly-built system with the sludge without domestication（Such as sewage plant anaerobic sludge,
The digested sludge of digester）Inoculation, makes reactor reach the process of Design cooling load and organic matter removal efficiency.Due to the micro- life of anaerobism
The generation cycle of object is long, and growth rate is low, therefore the start-up course of anaerobic reactor is long.Factor is started according to anaerobic reactor
Difference, generally 30 ~ 100d, this seriously restricts its extensive use in industrial wastewater and domestic sewage processing system.Just
The anaerobic baffled reactor often run is by ascending current and ripe anaerobic sludge output bubble, makes sludge suspension upper
It promotes in room.Sludge quantity in reactor is made to reach certain numerical value, and ripe ability normal operation processing waste water, so ABR
Startup just becomes very crucial.Anaerobic baffled reactor is commonly used for processing and is difficult to biodegradable industrial wastewater, reactor
The domestication start-up course time also can than processing sanitary sewage extend.In addition bioreactor is during normal operation, and one
Denier production development accident, microorganism fungus kind mortality cause bioreactor system to collapse, then need bioreactor again
Secondary startup, anaerobe need to cultivate and tame again, and need to wait a very long start-up course.
It is many to influence the factor that anaerobic reactor starts, composition and concentration, the number of seed sludge including pending waste water
Amount and activity, environmental condition（PH value, temperature etc.）, trace element supplement, operating condition（COD volumetric loadings, hydraulic retention
Time etc.）With the factors such as the structure size of reactor.
In recent years, follow-on ABR reactors generally can all set hanging filler or addition floating stuffing.It is suspended with adding
Exemplified by filler, the position for the mobile bed that floating stuffing is formed is generally uncontrolled.At ABR reactor start-up initial stages, inoculation is dirty
Mud is readily collected in the lower part of reactor due to being subject to gravity.Floating stuffing is gathered in the top of upward flow cell compartment, and connects
Kind sludge is then gathered in the lower part of upward flow cell compartment, thus the contact portion of floating stuffing and seed sludge is seldom.If addition
Filler proportion it is larger, close to 1 or more than 1, in the reactor start-up later stage, the biofilm development on filler obtains comparative maturity,
Then filler is readily collected in the lower part of reactor upward flow cell compartment, relatively from the point of view of, the sludge and biology on the top of upward flow cell compartment
Film distribution is just seldom.The position of filler is uncontrolled in general ABR reactors, thus contact of the filler with seed sludge also from
Control.
The present invention intends, to making improvements in the facility structure of anaerobic baffled reactor and start-up operation condition, it is anti-improving ABR
The controllability of filler in device is answered, to shorten the startup time of reactor.
The content of the invention
The technical issues of solution：The purpose of the present invention is provide a kind of box-cage type movement for overcome the deficiencies in the prior art
Bed modified ABR reactors and its startup method, the startup method can shorten for 10% or so startup time.
Technical solution：
A kind of box-cage type moving bed modified ABR reactors, are made of 3~6 compartments, and each compartment includes upward flow lattice
Room and lower to stream cell compartment, upward flow cell compartment and lower the ratio between volume to stream cell compartment are 3~5：1, wherein, it is set in upward flow cell compartment
There are boxes and baskets, filler is loaded in boxes and baskets, transmission device is equipped at the top of compartment, transmission device is connected by cable wire with boxes and baskets.
Further, the boxes and baskets are made of stainless steel grizzly bar, are rectangular shape；The length and width of boxes and baskets is respectively less than
The length and width of upward flow cell compartment, highly 35~50% for upward flow cell compartment effective height, boxes and baskets and the wall of upward flow cell compartment
Face is at a distance of less than 5mm.
Further, the size of mesh opening between stainless steel grizzly bar is less than the minimum dimension of filler.
Further, the filler is floating stuffing, and density is in 0.90~0.96 g/cm3, filler 10~25mm of diameter,
Material is polypropylene or polyethylene.
Further, the filler is built-in suspension ball filler, by grid spherical shell and built-in carrier two parts group
Into housing is molded by high molecular polymer, and spherical surface is in latticed, and built-in carrier material is more than 1 porous material for proportion.
Further, upward flow cell compartment bottom is equipped with reflux recoil tube, and the reflux recoil tube is perforated pipe, is arranged to round
Round.
The startup method of above-mentioned box-cage type moving bed modified ABR reactors, comprises the following steps：
Step 1, anaerobic sludge is taken, supernatant is pumped after standing, obtains the thickened sludge that concentration is 30~45 g/L, then
Glucose is put into thickened sludge, is stirred, stands, obtains seed sludge；
Step 2, step 1 gained seed sludge is seeded in above-mentioned box-cage type moving bed modified ABR reactors, be pumped into
35 DEG C for the treatment of sewage has been heated to, the concentration of sludge is made to fill filler for 10~15 g/L, then by boxes and baskets, has adjusted reactor
In hydraulic detention time for 6~for 24 hours；Boxes and baskets are placed in upward flow cell compartment lower part, treated under upward flow cell compartment by system initial start stage
After the amount increase of portion's suspension anaerobic sludge and biomembrane, into mid-term；System starts mid-term, and boxes and baskets are placed in upward flow cell compartment
Portion, after the amount increase of suspension anaerobic sludge and biomembrane in the middle part of upward flow cell compartment, into the later stage；System starts the later stage, by case
Cage is placed in upward flow cell compartment top, until start completion.
Further, system initial start stage, system start mid-term and the time in system startup later stage is distributed in terms of day, ratio
For 3：4：5、3：5：4、5：4：4 or 5：4：3.
Further, between system startup, part processing water outlet interval is back to upward flow cell compartment bottom with water pump
Reflux recoil tube.
Further, reflux recoil tube is back to the frequency of upward flow cell compartment bottom as reflux 2 times daily, flow back 5 every time ~
10min。
The principle of the present invention：
Boxes and baskets are set in the upward flow cell compartment of reactor, filler is loaded in boxes and baskets, transmission dress is set beside cell compartment
It puts, moves up or down boxes and baskets, be formed with the moving bed of packing layer, pending waste water enters reactor by water inlet, successively
By compartment, after processing by water outlet water outlet.On the basis of traditional ABR reactors, with reference to moving bed biological membrane technology,
And in order to make the position of moving bed and operation controllable, add the transmission device on boxes and baskets and compartment top.
Filler is added in the upward flow cell compartment of reactor, purpose seeks to hang biomembrane on filler, forms anaerobism and hangs
Floating sludge and biomembrane synergy, generally increase sludge concentration in reactor, reactor are enable to bear higher COD processing
Load improves biological treatment efficiency.
Boxes and baskets are placed in upward flow cell compartment lower part, filler are made fully to be connect with the seed sludge in ABR by system initial start stage
It touches, stablizes growth on filler convenient for biomembrane.When biomass gathers to a certain extent, i.e., into system start mid-term and
When boxes and baskets are moved up, be placed in the middle part of upward flow cell compartment so that suspended sludge in the middle part of upward flow cell compartment and hang with biomembrane
Filler come into full contact with, can also have a large amount of multiplication of anaerobic sludge in the middle part of upward flow cell compartment, on filler biomembrane suspend it is dirty
In mud, it is also easy to obtain growth update, keeps the biofilm biomass on filler；System starts the later stage, and suspended sludge is readily collected in
In upward flow cell compartment, lower part, boxes and baskets are placed in upward flow cell compartment top, in this way, even if filler proportion is larger, boxes and baskets can also be made
Middle packing layer maintains the top of upward flow cell compartment, keeps the anaerobic sludge of reactor upward flow cell compartment along more uniform above and below cell compartment
Distribution, can also form the generation and culture of anaerobic sludge on upward flow cell compartment top.
The setting and control of boxes and baskets so that during entire Primary culture, filler comes into full contact with seed sludge in ABR,
Thus play the role of accelerating the start-up course of ABR, realize the effect for shortening and starting the time, and this effect is built upon
On the basis of the innovation of the present invention.
Size of mesh opening is less than the minimum dimension of filler between the stainless steel grizzly bar of boxes and baskets, therefore boxes and baskets bottom can play and hold
Hold in the palm the effect of filler so that packing layer is completely stored in boxes and baskets, and also there are rectification and uniform cloth in boxes and baskets bottom in ascending current simultaneously
The effect of water.Grizzly bar grid at the top of boxes and baskets plays the role of retaining filler, and filler is not allowed to be lost to next compartment；Boxes and baskets simultaneously
When packing layer is occupy to stream cell compartment top, also there is crown_interception to suspension anaerobic sludge, reduce number of dropouts, remain high and hang
Floating sludge concentration, improves biological treatment efficiency.
Between system startup, the reflux that part processing water outlet interval is back to upward flow cell compartment bottom with water pump recoils
Pipe, reflux 2 times daily, flow back 5-10 min every time.The reflux recoil of interval, brings the shear action of current, makes in boxes and baskets
Aging biomembrane is come off, while prevents filler from blocking, and prevents short stream, forms the good hydraulics of reactor.
System initial start stage, system start mid-term, the time in system startup later stage is distributed in terms of day, ratio 3：4：5（Place
Manage general sanitary sewage）Or 3：5：4（It needs to strengthen and starts mid-term）Or 5：4：4 or 5：4：3（Industrial wastewater is handled, it is necessary to strong
Change the domestication of early period）.
The startup method of the present invention forms seed sludge before this, then according to the principle of box-cage type moving bed ABR reactors
Cultivate at times, tame.It is screened, tamed using biotechnology and construct the advantage for the characteristic contamination that can degrade
Flora, and the dominant microflora that the physisorphtion of intermittent cycle is used to will be enlarged by the degradation characteristic contamination after cultivating is fixed on
On filler, then filler is placed in boxes and baskets, forms immobilized biomembrane bed, be so equivalent to and formally start in ABR reactors
Before, the culture and fixation of required microorganism on filler have first been carried out, it is so most of to solve in the formal startup of ABR reactors
The problem of biofilm development is with fixing on filler, moves up and down boxes and baskets, grows suspension anaerobic sludge, while biomembrane on filler
It is tamed, can further shorten the startup time of reactor.
Advantageous effect：
1st, compared with traditional ABR reactors, filler comes into full contact with seed sludge in the present invention, and biology is hung on filler
Film, and the height of boxes and baskets is raised in time, biomembrane is also formed at portion and top in the reactor, when substantially reducing the startup of ABR
Between, can generally shorten 10% or so the startup time.
2nd, boxes and baskets bottom not only acts as the effect of support filler, while also has in ascending current rectification and water distribution uniformity
Effect can obtain better hydraulics, play the role of retaining filler at the top of boxes and baskets, keep high in upward flow cell compartment
Biomass, thus improve biological treatment efficiency.
3rd, reactor of the invention and method, loose to the choosing conditions of filler, suitable fillers scope is wide, and selection is easy.
4th, the waterpower recoil that reflux recoil tube is brought, can promote biomembrane update and suspended granular sludge growth, improve
The biological treatment efficiency of device.
Description of the drawings
Fig. 1 is the box-cage type moving bed modified ABR reactor facade structures schematic diagrames of embodiment 1；
Fig. 2 is the box-cage type moving bed modified ABR reactor top views of embodiment 1；
Fig. 3 is that the boxes and baskets of embodiment 1 fill up the schematic diagram of filler；
Fig. 4 is the startup method schematic diagram of the box-cage type moving bed modified ABR reactors of embodiment 1, and a is in for boxes and baskets
The schematic diagram of upward flow cell compartment lower part, b are the schematic diagram that boxes and baskets are in the middle part of upward flow cell compartment, and c is in upward flow lattice for boxes and baskets
The schematic diagram on room top；
Wherein, 1-water inlet, 2-compartment, 3-under to stream cell compartment, 4-upward flow cell compartment, 5-boxes and baskets, 6-reflux is anti-
Washing pipe, 7-transmission device, 8-junction button, 9-effluent weir, 10-water outlet, 11-reflux pump, 12-filler.
Specific embodiment
The content that following embodiment further illustrates the present invention, but should not be construed as limiting the invention.Without departing substantially from
In the case of spirit and essence of the invention, to modification and replacement that the method for the present invention, step or condition are made, the present invention is belonged to
Scope.Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Embodiment 1
Certain sanitary sewage box-cage type moving bed modified ABR reactors using the present invention are handled, before processing into
Water concentration COD≤500mg/L, pH 6.5~8.5, SS≤100mg/L, NH3- N≤100mg/L, TP≤1.0mg/L.At biochemistry
Manage effluent index COD≤150mg/L, pH 6.5~8.5, SS≤50mg/L, NH3- N≤30mg/L, TP≤1.0mg/L.
As shown in Figure 1, box-cage type moving bed modified ABR reactors, are made of, each compartment is divided into be upper 5 compartments
To stream cell compartment 4 and lower to stream cell compartment 3, upward flow cell compartment 4 and lower the ratio between volume to stream cell compartment 3 are 3：1, wherein, in upward flow
Boxes and baskets 5 in cell compartment 4 are set, filler 12 is loaded in boxes and baskets 5, transmission device 7, transmission device 7 are equipped at 4 top of upward flow cell compartment
It is connected by cable wire with boxes and baskets 5, controllable boxes and baskets 5 move up or down, and are formed with the moving bed of packing layer.Upward flow cell compartment
4 bottoms are equipped with reflux recoil tube 6, and the reflux recoil tube 6 is circular perforation pipe.It handles waste water and reactor is entered by water inlet 1,
Successively by 5 compartments 2, after processing by effluent weir 9,10 water outlet of water outlet.
Boxes and baskets 5 are made of stainless steel grizzly bar, and in rectangular shape, the length and width of boxes and baskets 5 is slightly less than upward flow cell compartment 4
Length and width, highly for upward flow cell compartment 4 effective height 35%.Filler 12, filler 12 are filled up in the boxes and baskets 5
Using Kaldnes floating stuffings, density is 0.90 g/cm3, a diameter of 15mm of filler, material is polypropylene.5 top of boxes and baskets is set
There are 2 junction buttons 8, transmission device 7 is connected by the junction button 8 at 5 top of cable wire and boxes and baskets with boxes and baskets 5, and keeps boxes and baskets in water
In fixation and horizontality.To keep the level of boxes and baskets, 2 hoist cables should together be risen by transmission device.
The startup method of box-cage type moving bed modified ABR reactors：
Step 1, using the anaerobic sludge of sewage treatment plant, supernatant is pumped after standing, obtains the concentration that concentration is 35g/L
Sludge puts into glucose in thickened sludge, stirs, and stands, and obtains the seed sludge in black；
Step 2, gained seed sludge is seeded in ABR reactors, treatment sewage is first heated up to 35 DEG C, then is pumped into
In ABR reactors, make the concentration of sludge that boxes and baskets be filled filler for 10g/L, it is 6 to control the hydraulic detention time in reactor
~12h；System initial start stage, system start mid-term, and the time that system starts the later stage is distributed in terms of day, ratio 3：4：5.System
Boxes and baskets are placed in upward flow cell compartment lower part by initial start stage, treat that the amount of upward flow cell compartment lower part suspension anaerobic sludge and biomembrane increases
After adding, into mid-term；System starts mid-term, and boxes and baskets are placed in the middle part of upward flow cell compartment, treats suspension anaerobism in the middle part of upward flow cell compartment
After the amount increase of sludge and biomembrane, into the later stage；System starts the later stage, and boxes and baskets are placed in upward flow cell compartment top, until opening
It is dynamic to complete.
Wherein, between system startup, part processing water outlet interval is back to returning for upward flow cell compartment bottom with water pump
Recoil tube is flowed, daily reflux 2 times, flow back 5~10 min every time.Control parameter：Water inlet remains COD≤500mg/L, and system opens
At dynamic initial stage, controlling the hydraulic detention time in reactor, system starts mid-term for 12h, when controlling the hydraulic retention in reactor
Between for 9h, system starts the later stage, control the hydraulic detention time in reactor as 6h.
System started total time as 36 days, and initial start stage is 9 days, and system starts mid-term and maintains 12 days, and system starts the later stage
It maintains 15 days.
Comparative example 1
Certain sanitary sewage is handled using common ABR reactors, the influent concentration COD≤500mg/L, pH of before processing
6.5~8.5, SS≤100mg/L, NH3- N≤100mg/L, TP≤1.0mg/L.Biochemical treatment effluent index COD≤150mg/L,
PH 6.5~8.5, SS≤50mg/L, NH3- N≤30mg/L, TP≤1.0mg/L.
ABR reactors are made of 5 compartments, each compartment be divided into for upward flow cell compartment and it is lower to stream cell compartment, upward flow lattice
Room and lower the ratio between volume to stream cell compartment are 3：1, the compartment size in specific compartment size equivalent integers 1.The filler of use,
The filling rate of filler is in the same manner as in Example 1.
Startup method：
Step 1, using the anaerobic sludge of sewage treatment plant, supernatant is pumped after standing, obtains the concentration that concentration is 35g/L
Sludge puts into glucose in thickened sludge, stirs, and stands, and obtains the seed sludge in black；
Step 2, gained seed sludge is seeded in ABR reactors, treatment sewage is first heated up to 35 DEG C, then is pumped into
In ABR reactors, the concentration of sludge is made to be packed into filler for 10g/L, it is 6~12h to control the hydraulic detention time in reactor.
Water inlet remains COD≤500mg/L, and the hydraulic detention time in reactor is controlled to gradually reduce hydraulic detention time for 12h and arrive
6h。
System started total time as 42 days.
Pass through embodiment 1 and comparative example 1, it can be clearly seen that the box-cage type moving bed modified ABR reactions in the present invention
Advantage of the device on construction and Starting mode, box-cage type moving bed modified ABR reactors of the invention and general ABR reactors
It compares, in ABR compart-ment constructions and size, each index concentration of Inlet and outlet water, filler and the parameters such as media-filling rate, final residence time
In the case of identical, shorten 6 days（About 14%）The startup time.
Embodiment 2
Certain Production in Chemical Plant comprehensive wastewater, handles high concentrated organic wastewater, and the influent concentration COD of before processing≤
3000mg/L, pH 6.5~8.5, SS≤100mg/L, NH3- N≤300mg/L, characteristic contamination concentration chlorobenzene class≤50mg/L.
Effluent index COD≤500mg/L after biochemical treatment, pH 6.5~8.5, SS≤50mg/L, NH3- N≤150mg/L, feature pollution
Object concentration chlorobenzene class≤10mg/L.
Box-cage type moving bed modified ABR reactors, are made of 5 compartments, and each compartment is divided into as 4 He of upward flow cell compartment
It is lower to stream cell compartment 3, upward flow cell compartment 4 and lower the ratio between volume to stream cell compartment 3 are 3：1, wherein, it is set in upward flow cell compartment 4
Boxes and baskets 5 load filler in boxes and baskets 5, are equipped with transmission device 7 at 4 top of upward flow cell compartment, transmission device 7 passes through cable wire and case
Cage 5 is connected, and controllable boxes and baskets 5 move up or down, and are formed with the moving bed of packing layer.4 bottom of upward flow cell compartment is equipped with back
Recoil tube 6 is flowed, the reflux recoil tube 6 is circular perforation pipe.Waste water is handled by water inlet 1 into reactor, successively by 5
Compartment, after processing by effluent weir 9,10 water outlet of water outlet.
Boxes and baskets 5 are made of stainless steel grizzly bar, and in rectangular shape, the length and width of boxes and baskets 5 is slightly less than upward flow cell compartment 4
Length and width, highly for upward flow cell compartment 4 effective height 35%.Filler 12, filler 12 are filled up in the boxes and baskets 5
Using Kaldnes floating stuffings, density is 0.95 g/cm3, a diameter of 10mm of filler, material is polyethylene.5 top of boxes and baskets is set
There is a junction button 8, transmission device 7 is connected by the junction button 8 at 5 top of cable wire and boxes and baskets with boxes and baskets 5, and keeps boxes and baskets in water
Fixed and horizontality.To keep the level of boxes and baskets, 2 hoist cables should together be risen by transmission device.
The startup method of box-cage type moving bed modified ABR reactors：
Step 1, using the anaerobic sludge of sewage treatment plant, supernatant is pumped after standing, obtains the concentration that concentration is 45g/L
Sludge puts into glucose in thickened sludge, stirs, and stands, and obtains the seed sludge in black；
Step 2, gained seed sludge is seeded in ABR reactors, treatment sewage is first heated up to 35 DEG C, then is pumped into
In ABR reactors, make the concentration of sludge that boxes and baskets be filled filler for 15g/L, it is 12 to control the hydraulic detention time in reactor
~18h；System initial start stage, system start mid-term, and the time that system starts the later stage is distributed in terms of day, ratio 5：4：4.System
Boxes and baskets are placed in upward flow cell compartment lower part by initial start stage, treat that the amount of upward flow cell compartment lower part suspension anaerobic sludge and biomembrane increases
After adding, into mid-term；System starts mid-term, and boxes and baskets are placed in the middle part of upward flow cell compartment, treats suspension anaerobism in the middle part of upward flow cell compartment
After the amount increase of sludge and biomembrane, into the later stage；System starts the later stage, and boxes and baskets are placed in upward flow cell compartment top, until opening
It is dynamic to complete.
System initial start stage, controlling the hydraulic detention time in reactor, influent COD is progressively upgraded to≤2000mg/ for 18h
L, system start mid-term, and influent COD is progressively upgraded to≤2500mg/L, control the hydraulic detention time in reactor as 15h, system
Start the later stage, influent COD is progressively upgraded to≤3000mg/L, and it is 12h to control the hydraulic detention time in reactor.
System started total time as 52 days, and initial start stage is 20 days, and system starts mid-term and maintains 16 days, and system starts the later stage
It maintains 16 days.
Comparative example 2
Certain Production in Chemical Plant comprehensive wastewater, using common ABR reactor for treatment high concentrated organic wastewater, before processing into
Water concentration COD≤3000mg/L, pH 6.5~8.5, SS≤100mg/L, NH3- N≤300mg/L, characteristic contamination concentration chlorobenzene
Class≤50mg/L.Effluent index COD≤500mg/L after biochemical treatment, pH 6.5~8.5, SS≤50mg/L, NH3-N≤
150mg/L, characteristic contamination concentration chlorobenzene class≤10mg/L.
ABR reactors are made of 5 compartments, each compartment be divided into for upward flow cell compartment and it is lower to stream cell compartment, upward flow lattice
Room and lower the ratio between volume to stream cell compartment are 3：1, the compartment size in specific compartment size equivalent integers 1.The filler of use,
The filling rate of filler is in the same manner as in Example 2.
Startup method：
Step 1, using the anaerobic sludge of sewage treatment plant, supernatant is pumped after standing, obtains the concentration that concentration is 45g/L
Sludge puts into glucose in thickened sludge, stirs, and stands, and obtains the seed sludge in black；
Step 2, gained seed sludge is seeded in ABR reactors, treatment sewage is first heated up to 35 DEG C, then is pumped into
In ABR reactors, the concentration of sludge is made to be packed into filler for 15g/L, it is 12~18h to control the hydraulic detention time in reactor；
Influent COD is progressively upgraded to≤3000mg/L, the hydraulic detention time in reactor is controlled as 18h, when gradually reducing hydraulic retention
Between to 12h.
System started total time as 60 days.
Pass through embodiment 2 and comparative example 2, it can be clearly seen that box-cage type moving bed modified ABR reactors of the invention
Advantage on construction and Starting mode, box-cage type moving bed modified ABR reactors of the invention and general ABR reactors phase
Than, in ABR compart-ment constructions and size, each index concentration of Inlet and outlet water, filler and the parameters phase such as media-filling rate, final residence time
With in the case of, shorten 8 days（About 13%）The startup time.
Claims (7)
1. box-cage type moving bed modified ABR reactors, by 3~6 compartments（2）Composition, each compartment（2）Including upward flow lattice
Room（4）With lower to stream cell compartment（3）, upward flow cell compartment（4）With lower to stream cell compartment（3）Volumetric ratio be 3~5：1, it is characterised in that：
In upward flow cell compartment（4）In be equipped with boxes and baskets（5）, in boxes and baskets（5）Middle filling filler（12）, in compartment（2）Top is equipped with transmission and fills
It puts（7）, transmission device（7）Pass through cable wire and boxes and baskets（5）It is connected；
The filler（12）For floating stuffing, density is in 0.90~0.96 g/cm3, filler 10~25mm of diameter, material is poly- third
Alkene or polyethylene；
The filler（12）For built-in suspension ball filler, be made of grid spherical shell and built-in carrier two parts, housing by
High molecular polymer is molded, and spherical surface is in latticed, and built-in carrier material is more than 1 porous material for proportion；
Upward flow cell compartment（4）Bottom is equipped with reflux recoil tube（6）, the reflux recoil tube（6）For circular perforation pipe.
2. box-cage type moving bed modified ABR reactors according to claim 1, it is characterised in that：The boxes and baskets（5）By
Stainless steel grizzly bar is made, and is rectangular shape；Boxes and baskets（5）Length and width be respectively less than upward flow cell compartment（4）Length and width
Degree, is highly upward flow cell compartment（4）The 35~50% of effective height, boxes and baskets（5）With upward flow cell compartment（4）Wall surface be apart less than
5mm。
3. box-cage type moving bed modified ABR reactors according to claim 2, it is characterised in that：Stainless steel grizzly bar it
Between size of mesh opening be less than filler（12）Size.
4. the startup method of box-cage type moving bed modified ABR reactors described in claim 1, it is characterised in that：Including with
Lower step：
Step 1, anaerobic sludge is taken, supernatant is pumped after standing, obtains the thickened sludge that concentration is 30~45 g/L, then dense
Glucose is put into contracting sludge, is stirred, stands, obtains seed sludge；
Step 2, step 1 gained seed sludge is seeded in the box-cage type moving bed modified ABR reactors, is pumped into and has added
The treatment sewage of heat to 35 DEG C makes the concentration of sludge fill filler for 10~15 g/L, then by boxes and baskets, adjusts in reactor
Hydraulic detention time for 6~for 24 hours；Boxes and baskets are placed in upward flow cell compartment lower part by system initial start stage, treat that upward flow cell compartment lower part hangs
After the amount increase of floating anaerobic sludge and biomembrane, into mid-term；System starts mid-term, and boxes and baskets are placed in the middle part of upward flow cell compartment,
After the amount increase of suspension anaerobic sludge and biomembrane in the middle part of upward flow cell compartment, into the later stage；System starts the later stage, and boxes and baskets are put
In upward flow cell compartment top, until start completion.
5. the startup method of box-cage type moving bed modified ABR reactors according to claim 4, it is characterised in that：System
Initial start stage, the system of uniting start mid-term and the time in system startup later stage is distributed in terms of day, ratio 3：4：5、3：5：4、5：4：4
Or 5：4：3.
6. the startup method of box-cage type moving bed modified ABR reactors according to claim 4, it is characterised in that：
Between system startup, part processing water outlet interval is back to the reflux recoil tube of upward flow cell compartment bottom with pump.
7. the startup method of box-cage type moving bed modified ABR reactors according to claim 6, it is characterised in that：It returns
Stream recoil tube is back to the frequency of upward flow cell compartment bottom as reflux 2 times daily, and flow back 5 ~ 10min every time.
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