CN204198485U - A kind of anaerobic baffled reactor - Google Patents

A kind of anaerobic baffled reactor Download PDF

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Publication number
CN204198485U
CN204198485U CN201420611340.3U CN201420611340U CN204198485U CN 204198485 U CN204198485 U CN 204198485U CN 201420611340 U CN201420611340 U CN 201420611340U CN 204198485 U CN204198485 U CN 204198485U
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China
Prior art keywords
mud
reaction chamber
flow
lattice
abr reaction
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CN201420611340.3U
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金鑫
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BAISITE ENVIRONMENT PROTECTION ENGINEERING Co Ltd SHENZHEN CITY
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BAISITE ENVIRONMENT PROTECTION ENGINEERING Co Ltd SHENZHEN CITY
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Abstract

The utility model discloses a kind of anaerobic baffled reactor, comprise water-in, water outlet and the multiple ABR reaction chambers be communicated with successively between water-in and water outlet, each ABR reaction chamber has traverse baffle, dividing plate is provided with between two adjacent ABR reaction chambers, the direction of flow of traverse baffle side is downward, and the direction of flow of opposite side upwards; Water-in treats the percolate of anaerobic treatment for passing into, water outlet is for discharging successively through the percolate of each ABR reaction chamber anaerobic treatment, each ABR reaction chamber is provided with single lattice recycle system, there is the mud inlet, mud mouth and the pump that are communicated with described ABR reaction chamber, mud inlet is positioned at the downward region of direction of flow, mud mouth is positioned at direction of flow region upwards, the pipeline making mud flow into single lattice recycle system by mud inlet by pump flows out from mud mouth again, mud is made to be in suspended state, thus percolate and mud are fully reflected, improve processing efficiency and effect.

Description

A kind of anaerobic baffled reactor
Technical field
The utility model relates to leachate treatment technology field, particularly relates to a kind of percolate anaerobic treatment method, and for carrying out the anaerobic baffled reactor of anaerobic treatment to percolate.
Background technology
Present stage percolate anaerobic treatment many employings ABR (Anaerobic Baffled Reactor, anaerobic baffled reactor), namely fully to be mixed with percolate by anaerobion in mud and produce strong biochemical reaction, with decomposing pollutant.But traditional ABR exists some problems in actual applications: when the water yield is less than normal, outside flap, current lift velocity is difficult to more than 0.3mm/s, causes the settling velocity of mud to be greater than 0.3mm/s, easily causes the heavy mud in bottom; Reactor is in long-term use procedure, have a large amount of invalid sludgd deposition unavoidably bottom reaction tank, if not in time invalid mud is discharged, easily cause the paralysis of ABR system, but, if system flooding quantity is less than normal, sludge settling excessive velocities, is difficult to entered next lattice by gravity flow and discharged by afterbody sludge drainage system.
Utility model content
In ABR reaction tank, in percolate and anaerobion reaction process, if sludge settling excessive velocities, then the contact of percolate and anaerobion reduces, and reaction is abundant not, causes percolate treatment effect undesirable.
Main purpose of the present utility model is to propose a kind of anaerobic baffled reactor, abundant not with the percolate anaerobic reaction solving prior art existence, the technical problem that percolate treatment effect is undesirable.
The technical scheme of the anaerobic baffled reactor that the utility model proposes is as follows:
A kind of anaerobic baffled reactor, comprise water-in, water outlet and the multiple ABR reaction chambers be communicated with successively between described water-in and described water outlet, each described ABR reaction chamber has traverse baffle, dividing plate is provided with between two adjacent described ABR reaction chambers, the direction of flow of described traverse baffle side is downward, and the direction of flow of opposite side upwards, described water-in treats the percolate of anaerobic treatment for passing into, described water outlet is for discharging successively through the percolate of each described ABR reaction chamber anaerobic treatment, at least part of described ABR reaction chamber is provided with single lattice recycle system, described single lattice recycle system has the mud inlet be communicated with described ABR reaction chamber, mud mouth and pump, described mud inlet is positioned at the downward region of direction of flow, described mud mouth is positioned at direction of flow region upwards, the pipeline making mud flow into described single lattice recycle system by described mud inlet by described pump flows out from described mud mouth again, to reduce the settling velocity of described mud at ABR reaction chamber.In the actual use of ABR, when the water yield of water-in is less than normal, each ABR reaction chamber inner fluid lift velocity is difficult to more than 0.3mm/s, cause the settling velocity of mud granule too fast, higher than 0.3mm/s, cause the duration of contact of mud and percolate short, contact area is little, reaction process is abundant not, and treatment effect declines; Meanwhile, the heavy mud in bottom is easily caused.Anaerobic baffled reactor in this programme, in single lattice ABR reaction chamber, single lattice recycle system is set, under the power of pump orders about, mud in every lattice ABR reaction chamber is ceaselessly circulated in reaction process, at utmost makes mud granule be in suspended state, thus reduce the settling velocity of mud granule, stirring action can also be played, make mud and the long-time bump contact of percolate, carry out sufficient anaerobic reaction, promote percolate anaerobic treatment effect and processing efficiency.
Preferably, the pipeline of described single lattice recycle system is provided with under meter and flowrate control valve, for controlling the rate of flow of fluid in described single lattice recycle system, makes the fluid lift velocity of described ABR reaction chamber be greater than 0.3mm/s.
Preferably, at least part of described ABR reaction chamber is provided with single lattice sludge drainage system, and described single lattice sludge drainage system has mud line, and described mud line one end is communicated to bottom described ABR reaction chamber, the other end passes into spoil disposal pond, so that the unnecessary mud in described ABR reaction chamber is expelled to described spoil disposal pond.When the flooding quantity of anaerobic baffled reactor is less than normal, mud granule settling velocity is too fast, mud is difficult to enter next lattice ABR reaction chamber by gravity flow, simple afterbody sludge drainage system is difficult to reach the object draining excess sludge, and in this programme, set up single lattice sludge drainage system, when sludgd deposition in ABR reaction chamber too much needs to remove, or sludge treatment deleterious need change mud time, adopt single lattice sludge drainage system, maximize the excess deposition reducing single lattice excess sludge, for effective mud provides more space, to reach more preferably anaerobic treatment efficiency and treatment effect.
Preferably, also comprise return-flow system, described return-flow system comprises inlet end, exit end and return line, described inlet end is positioned at ABR reaction chamber described in the last lattice, described exit end is positioned at described water inlet, to make described return-flow system by described return line to described inlet end conveying returned sluge, and the direction that described returned sluge reaches described water inlet is consistent with the water (flow) direction of water inlet.When the flooding quantity of anaerobic baffled reactor is less, the current lift velocity of traverse baffle side is also less, is difficult to more than 0.3mm/s, cause the settling velocity of mud granule too fast, higher than 0.3mm/s, cause the duration of contact of mud and percolate short, contact area is little, reaction process is abundant not, and treatment effect declines, for this reason, set up backflow to strengthen flooding quantity, thus current lift velocity can be accelerated, make the not too fast deposition of mud granule, react more fully with percolate.
Preferably, described return line has multiple backflow branch road being communicated at least part of described ABR reaction chamber respectively, described returned sluge to be passed into respectively at least part of described ABR reaction chamber, form the lattice consistent with the direction of flow of described ABR reaction chamber and reflux.On the basis of total backflow (being namely directly back to described water inlet), be equipped with the single lattice backflow realized by backflow branch road, not only increase overall flow velocity from water inlet, also ensure that returned sluge in every lattice ABR reaction chamber properly distributed, and can avoid the phenomenon generation of a large amount of depositional remanent mud of single lattice.
Preferably, the described inlet end of described return-flow system is positioned at the bottom of ABR reaction chamber described in the last lattice, by pump by return line described in described returned sluge suction, and described returned sluge is flowed into from each described ABR reactor top.Pass into returned sluge from ABR reactor top, at utmost can play the effect increasing flow velocity.
Preferably, described return line and each described backflow branch road are equipped with flowrate control valve, described return line is also provided with under meter and vacuum breaker; Controlled the rate of flow of fluid in described single lattice recycle system by described under meter and described flowrate control valve, make the fluid lift velocity of described ABR reaction chamber be greater than 0.3mm/s.By flowrate control valve, under meter and vacuum breaker can more convenient, control quantity of reflux exactly, therefore, it is possible to by increase reflux ratio increase flooding quantity, thus improve flow velocity.
Preferably, also comprising temperature controlling system, remaining in 30 ~ 38 DEG C for making by the described returned sluge temperature of described return line; Described temperature controlling system comprises thermal source inlet, the thermal source outlet at interchanger and described interchanger two ends, and described return line, via described interchanger, makes the temperature of described returned sluge be changed.The temperature of returned sluge is controlled in 30 ~ 38 DEG C by temperature controlling system, meet the required optimal temperature controlled of anaerobism, better improve the activity of anaerobion, mud can be debugged quickly to meet current reaction environment, enter reaction process quickly, avoid the anaerobic baffled reactor shortcoming that startup that is that cause is slow because mud temperature is lower.
Preferably, described interchanger is tubular heat exchanger.
In a word, anaerobic baffled reactor of the present utility model is in the process of process percolate, compared with prior art at least there is following beneficial effect: by single lattice sludge circulation, improve the suspension degree of mud, mud is made at utmost to be in suspended state, thus react with percolate more fully, improve the processing efficiency to percolate, optimization process effect, 80% is reached to the pollutants removal rate in percolate, optimal situation (clearance 70%) compared to existing technology, has had and has significantly improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of anaerobic baffled reactor that the utility model specific embodiment provides;
Fig. 2 is the schematic diagram of a kind of embodiment of single lattice recycle system;
Fig. 3 is the schematic diagram of the temperature controlling system reflux mud of the anaerobic baffled reactor of Fig. 1.
Embodiment
Below contrast accompanying drawing and combine preferred embodiment the utility model is described in further detail.
Specific embodiment of the utility model provides a kind of anaerobic baffled reactor for carrying out anaerobic treatment to percolate, and percolate comes from equalizing tank, after anaerobic baffled reactor process of the present utility model, enter denitrification pond 20.As shown in Figure 1, described anaerobic baffled reactor has water-in 100 and water outlet 200, multiple ABR reaction chamber 300 be communicated with successively is provided with between water-in 100 and water outlet 200, each ABR reaction chamber 300 has traverse baffle 301, dividing plate 302 is provided with between two adjacent ABR reaction chambers 300, and the direction of flow of described traverse baffle 301 side is downward, after baffling, the direction of flow of opposite side upwards, dividing plate 302 backward next lattice of lower inflow ABR reaction chamber described in the fluid pile warp of a upper lattice ABR reaction chamber; Water-in 100 place passes into the percolate needing to carry out anaerobic treatment from equalizing tank 10, first percolate enters the first lattice ABR reaction chamber 300, react with mud and carry out anaerobic treatment, enter the second lattice, the 3rd lattice successively ... until the last lattice ABR reaction chamber 300, then discharge from water outlet 200 and carry out other follow-up process.As shown in Figure 1, the bottom of each lattice ABR reaction chamber 300 of described anaerobic baffled reactor is respectively equipped with single lattice recycle system 400, for realizing single lattice circulation stirring.As depicted in figs. 1 and 2, described single lattice recycle system 400 comprises the mud inlet 401 and mud mouth 402 that are all communicated with ABR reaction chamber 300, also comprise the power plant module 403 for providing circulation power, wherein said mud inlet 401 is positioned at the downward region of direction of flow, described mud mouth 402 is positioned at direction of flow region upwards, described power plant module 403 provides power to flow out from described mud mouth 402 with the pipeline making described mud and flow into described single lattice recycle system by described mud inlet 401 again, makes the mud in described ABR reaction chamber be in suspended state.Wherein, power plant module 403 can be such as pump.In addition, the pipeline of single lattice recycle system 400 is provided with under meter 404, vacuum breaker 405 and flowrate control valve 406, and the front and back pipeline of described pump is equipped with described flowrate control valve.
As depicted in figs. 1 and 2, each ABR reaction chamber 300 also can be provided with single lattice sludge drainage system, when sludgd deposition in ABR reaction chamber too much needs to remove, or sludge treatment deleterious need change mud time, single lattice sludge drainage system is adopted to be discharged by the mud in every lattice ABR reaction chamber, described single lattice sludge drainage system has mud line 500, described mud line 500 one end is communicated to bottom ABR reaction chamber 300, the other end passes into spoil disposal pond, respectively the unnecessary mud in each described ABR reaction chamber 300 is expelled to described spoil disposal pond.In embodiment as depicted in figs. 1 and 2, mud line 500 can directly with the pipeline connection of the mud inlet end of described single lattice recycle system, when not needing to carry out spoil disposal, mud is stoped to flow into mud line 500 by valve-off 501, when needs carry out spoil disposal, then open valve 501, and close the circulation of single lattice by the flowrate control valve 406 of single lattice recycle system 400.
As shown in Figure 1, the anaerobic baffled reactor of the present embodiment also can comprise return-flow system, described return-flow system comprises inlet end 601, exit end 602 and return line 603, wherein inlet end 601 is positioned at the last lattice ABR reaction chamber 300, exit end 602 is positioned at described water-in 100 place, to make described return-flow system by described return line 603 to described water-in 100 end conveying returned sluge, and flow direction when described returned sluge arrives described water-in 100 place is consistent with the flow direction of water inlet.In certain embodiments, described return line 603 can have multiple backflow branch road leading to each ABR reaction chamber 300 respectively, reflux shown in Fig. 1 branch road 603a, 603b, 604b, respectively returned sluge is sent into the second lattice, the 3rd lattice, the 4th lattice ABR reaction chamber, formation lattice refluxes, and the flow direction of the returned sluge of every lattice when entering these lattice is all consistent with the water inlet water (flow) direction of every lattice, thus augmented flow and raising flow velocity.Particularly, described inlet end 601 is positioned at the bottom of the last lattice ABR reaction chamber 300, extracts returned sluge flow into from the top of each ABR reaction chamber 300 through return line 603 and backflow branch road by pump.Described return line and described backflow branch road being also provided with flowrate control valve, for controlling flow and the switch return-flow system of backflow, wherein return line being also provided with under meter and vacuum breaker.
As shown in Figure 1, the anaerobic baffled reactor of the present embodiment also can comprise temperature controlling system 700, be arranged on the described return line 603 of described return-flow system, remain in 30 ~ 38 DEG C for making by the described returned sluge temperature of described return line, especially 35 DEG C are remained on, meet the optimal temperature needed for anaerobic reaction, maximize the activity improving anerobe.In concrete implementation process, as shown in figures 1 and 3, described temperature controlling system 700 can adopt tubular heat exchanger, and thermal source is power station exhaust steam, and maximize and save running cost, described tubular heat exchanger has steam-in 701 and vapour outlet 702.Returned sluge in described return line 603, through described tubular heat exchanger, by controlling the residence time of mud in interchanger, controlling the flow of mud, making returned sluge be warmed up to about 35 DEG C in conjunction with the flowrate control valve on described return line.
In certain embodiments, also be provided with for the packing area 800 for attachment during mud procreation in ABR reaction chamber, as shown in Figure 1, packing area 800 comprises the filler beam 801 of top, the filler beam 802 of below, between upper and lower filler beam 801,802, be provided with multiple Anchored Bar, every root Anchored Bar is provided with the attachment palpus 803 of bunchiness, adheres to for mud.
The anaerobic baffled reactor adopting the utility model concrete example to provide carries out anaerobic treatment to percolate, roughly comprises following processing step:
Wherein from the percolate of equalizing tank, pollution level generally uses COD (chemical oxygen demand (COD)), BOD (biochemical oxygen demand (BOD)) and NH 3-N (ammonia nitrogen) content is weighed, and such as, passes into following percolate to water-in:
COD:35000mg/L
BOD:15000mg/L
NH 3-N:750mg/L;
S1, in each described ABR reaction chamber, pass into mud, and by above-mentioned percolate from ABR reaction chamber 300 described in the first lattice that described water-in 100 passes into described anaerobic baffled reactor; Wherein, anaerobion is contained in described mud.Anaerobion (or anerobe) can react with the pollutent in described percolate, decomposing pollutant.
S2, percolate is made to flow through each ABR reaction chamber successively, the reactor with 5 lattice ABR reaction chambers such as, is provided in Fig. 1, anaerobic treatment is step by step carried out, until the 5th lattice ABR reaction chamber and discharging from described water outlet 200 to react with the anaerobion in each ABR reaction chamber.In anaerobic treatment process, open described single lattice recycle system to circulate to the described mud in each described ABR reaction chamber respectively, mud is made to keep suspended state, open described return-flow system to carry out refluxing and by flow control valve regulation reflux ratio (when flooding quantity is less, increase reflux ratio, such as, traditional 1:3 reflux ratio is put and be twice, become 1:6, strengthen quantity of reflux), open described temperature controlling system simultaneously and keep the temperature of returned sluge at about 35 DEG C.
Through recording the sewage that water outlet 200 place discharges, its COD:5000mg/L, BOD:1500mg/L, NH 3-N:600mg/L; Visible, 80% is reached to the overall clearance of pollutent, is far superior to prior art.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of ordinary skill in the field; without departing from the concept of the premise utility; some equivalent to substitute or obvious modification can also be made, and performance or purposes identical, all should be considered as belonging to protection domain of the present utility model.

Claims (9)

1. an anaerobic baffled reactor, comprise water-in, water outlet and the multiple ABR reaction chambers be communicated with successively between described water-in and described water outlet, each described ABR reaction chamber has traverse baffle, dividing plate is provided with between two adjacent described ABR reaction chambers, the direction of flow of described traverse baffle side is downward, and the direction of flow of opposite side upwards; Described water-in treats the percolate of anaerobic treatment for passing into, described water outlet, for discharging successively through the percolate of each described ABR reaction chamber anaerobic treatment, is characterized in that:
At least part of described ABR reaction chamber is provided with single lattice recycle system, described single lattice recycle system has the mud inlet, mud mouth and the pump that are communicated with described ABR reaction chamber, described mud inlet is positioned at the downward region of direction of flow, described mud mouth is positioned at direction of flow region upwards, the pipeline making mud flow into described single lattice recycle system by described mud inlet by described pump flows out from described mud mouth, to reduce the settling velocity of described mud at ABR reaction chamber again.
2. anaerobic baffled reactor as claimed in claim 1, it is characterized in that: the pipeline of described single lattice recycle system is provided with under meter and flowrate control valve, for controlling the rate of flow of fluid in described single lattice recycle system, the fluid lift velocity of described ABR reaction chamber is made to be greater than 0.3mm/s.
3. anaerobic baffled reactor as claimed in claim 1, it is characterized in that: at least part of described ABR reaction chamber is provided with single lattice sludge drainage system, described single lattice sludge drainage system has mud line, described mud line one end is communicated to bottom described ABR reaction chamber, the other end passes into spoil disposal pond, so that the unnecessary mud in described ABR reaction chamber is expelled to described spoil disposal pond.
4. anaerobic baffled reactor as claimed in claim 1, it is characterized in that: also comprise return-flow system, described return-flow system comprises inlet end, exit end and return line, described inlet end is positioned at ABR reaction chamber described in the last lattice, described exit end is positioned at described water inlet, to make described return-flow system by described return line to described inlet end conveying returned sluge, and the direction that described returned sluge reaches described water inlet is consistent with the water (flow) direction of water inlet.
5. anaerobic baffled reactor as claimed in claim 4, it is characterized in that: described return line has multiple backflow branch road being communicated at least part of described ABR reaction chamber respectively, described returned sluge to be passed into respectively at least part of described ABR reaction chamber, form the lattice consistent with the direction of flow of described ABR reaction chamber and reflux.
6. anaerobic baffled reactor as claimed in claim 5, it is characterized in that: the described inlet end of described return-flow system is positioned at the bottom of ABR reaction chamber described in the last lattice, by pump by return line described in described returned sluge suction, and described returned sluge is flowed into from each described ABR reactor top.
7. the anaerobic baffled reactor as described in any one of claim 5 or 6, is characterized in that: described return line and each described backflow branch road are equipped with flowrate control valve, described return line is also provided with under meter and vacuum breaker; Controlled the rate of flow of fluid in described single lattice recycle system by described under meter and described flowrate control valve, make the fluid lift velocity of described ABR reaction chamber be greater than 0.3mm/s.
8. anaerobic baffled reactor as claimed in claim 4, is characterized in that: also comprise temperature controlling system, remaining in 30 ~ 38 DEG C for making by the described returned sluge temperature of described return line; Described temperature controlling system comprises thermal source inlet, the thermal source outlet at interchanger and described interchanger two ends, and described return line, via described interchanger, makes the temperature of described returned sluge be changed.
9. anaerobic baffled reactor as claimed in claim 8, is characterized in that: described interchanger is tubular heat exchanger.
CN201420611340.3U 2014-10-21 2014-10-21 A kind of anaerobic baffled reactor Expired - Fee Related CN204198485U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105668784A (en) * 2016-04-06 2016-06-15 深圳和乐新能源环境技术有限公司 Container-type high-concentration organic wastewater treatment device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105668784A (en) * 2016-04-06 2016-06-15 深圳和乐新能源环境技术有限公司 Container-type high-concentration organic wastewater treatment device

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Granted publication date: 20150311

Termination date: 20201021