CN107473376B - A kind of anaerobic reaction system - Google Patents
A kind of anaerobic reaction system Download PDFInfo
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- CN107473376B CN107473376B CN201710818065.0A CN201710818065A CN107473376B CN 107473376 B CN107473376 B CN 107473376B CN 201710818065 A CN201710818065 A CN 201710818065A CN 107473376 B CN107473376 B CN 107473376B
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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
-
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
A kind of anaerobic reaction system, it is related to technical field of sewage, including ZHA-F anaerobic reactor, water sealed tank and ZHA-03 settling system, it from top to bottom successively include Sludge Bed inside the ZHA-F anaerobic reactor, sludge suspension layer, three phase separator I, filled layer I, overflow weir I, the bottom of the Sludge Bed is equipped with water distribution branch pipe, the water distribution branch pipe is connected with the water inlet that ZHA-F anaerobic reactor bottom is arranged in, the filled layer I is equipped with filler support, filler support fills filler and forms filled layer I, the overflow weir I is connected by drainpipe with ZHA-03 settling system.The present invention substantially increases reactor to the interception capacity of anaerobe by the selection and design to filler；The present invention devises unique back-purge system, the gas flow of adjustable flushing packing layer, to effectively prevent filled layer to block, to guarantee treatment effeciency of the anaerobic reactor in, in low concentration wastewater treatment process.
Description
Technical field
The present invention relates to technical field of sewage more particularly to it is a kind of used in, low-concentration organic waste water processing it is new
Type anaerobic reaction system.
Background technique
Under the conditions of anaerobic fermentation refers to existing for no free oxygen, facultative bacteria and degradation of anaerobic bacteria and stablize organic
The bioremediation of object is the important micro-organism treatment process of one of sewage disposal process.In anaerobic fermentation process,
Complicated organic compound is degraded, is converted into simple compound, releases energy simultaneously.In this process, organic matter
Conversion is divided into three parts progress: being partially converted into CH4, this is a kind of fuel gas, recoverable；There are also be partially broken down into
CO2、H2O、NH3、H2The inorganic matters such as S, and energy is provided for cell synthesis；A small amount of organic matter is converted, synthesizes new plasm
Component part.Since only a small amount of organic matter for synthesizing, therefore compared to aerobic biological treatment, want small and obtain by sludge growth rate
It is more.
Since anaerobe growth rate is slower, and the development of the reservation technical level of microorganism fungus kind is limited, therefore
Traditional wastewater process field anaerobic technology is only applicable to the higher sewage of COD concentration, just can guarantee under these conditions enough
The anaerobe of amount is retained in anaerobic reactor.As the extremely apparent Anaerobic Microbiological Treatment Technology of advantage in, it is low dense
Spend the rarely seen engineer application of sewage treatment field.
It is lower than the sewage of 2000mg/L for COD concentration, worldwide all rarely seen application for having anaerobic technology, most main
It wants reason to be just a lack of the technological means of effectively catching strain, quite a few anaerobic species is caused to flow out with water outlet.Most early grind
Study carefully personnel to attempt using UBF(Up-flow Blanket Filter, anaerobic composite bed) reactor retains strain, but due to detesting
Oxygen growth characteristic understands depth deficiency, and along with new material development is limited, reactor is very easy to blocking, to cause short
Flow phenomenon occurs often, cannot achieve the anaerobic stabilization processing of low concentration of water.Current research hotspot is concentrated on using film in the world
The mode of microorganism of shutting off has developed AnMBR(Anaerobic Membrane Bioreactor, anaerobic membrane bioreactor)
Technique.But since in anaerobic reactor membrane pollution problem can not be solved in such a way that a large amount of aerations are washed away, lead to membrane flux
It reduces rapidly, to keep the loss of film very fast.Therefore, high investment and operating cost industrialize AnMBR technique can not
With.
Summary of the invention
The present invention is intended to provide a kind of suitable for handling, the Novel anaerobic reaction system of low-concentration organic waste water.
The technical scheme is that realize in the following way:
A kind of Novel anaerobic reaction system, including ZHA-F anaerobic reactor, water sealed tank and ZHA-03 settling system, it is described
It from top to bottom successively include Sludge Bed, sludge suspension layer, three phase separator, filled layer inside ZHA-F anaerobic reactor, overflow
Weir, the bottom of the Sludge Bed is equipped with water distribution branch pipe, the water distribution branch pipe be arranged in ZHA-F anaerobic reactor bottom into
The mouth of a river is connected, the filled layerEquipped with filler support, filler support fills filler and forms filled layer, the overflow weirIt is logical
Drainpipe is crossed to be connected with ZHA-03 settling tank.
The three phase separator is divided into 2 ~ 6 layers, and each layer is uniformly distributed with several gas gathering masks, and each layer is equipped with one group
Gas collecting tube, the gas collecting tube are connected with same layer gas gathering mask, and the gas gathering mask of same layer is distributed in identical height level, and upper and lower two
The gas gathering mask of layer is staggeredly uniformly distributed, the overall footprint of each layer of gas gathering mask be anaerobic reactor cross-sectional area 50% ~
80%。
The gas gathering mask is cone, and cone angle is 60 ° ~ 90 °, is equipped with gas port, each gas gathering mask at the top of the gas gathering mask
3 ~ 6 air leakage holes are equipped with, the gas gathering mask lower edge is connected with lower flap portion vertically downward.
The shape of the air leakage hole is rectangle, and the length of the air leakage hole is the 1/3 ~ 1/ of conical gas gathering mask bus length
2, the length-width ratio of the air leakage hole is (5 ~ 10): 1, the air leakage hole is located on gas gathering mask side, the bottom edge of rectangle air leakage hole and
Gas gathering mask lower edge is concordant, and adjacent two layers gas gathering mask is equipped with the air leakage hole of different length, and the length of lower layer's air leakage hole is upper
The 70% ~ 90% of layer air leakage hole length, the air leakage hole is uniformly distributed on gas gathering mask.
The filler is selected from cylindrical body, the zeolite of sphere and irregular shape, volcanic rock, activity made of PLA or PVC
One of charcoal is a variety of, and the partial size of the filler is 10 ~ 50mm.The filler has large specific surface area, water distribution, gas distribution performance
Well, the features such as biofilm is easy is conducive to the mass transfer of the waste of nutriment needed for microbial metabolism and metabolism generation
Process.
The filler divides three layers to be loaded by particle size, and upper layer packing material size is 10 ~ 15mm, and middle filler partial size is
15 ~ 35mm, lower layer's packing material size be 35 ~ 50mm, upper layer, middle layer, lower layer's filler packed height ratio be 1:(1 ~ 2): (1 ~ 3).
The filler filling mode that partial size becomes larger from top to bottom is conducive to be promoted filler to the rejection effect of sludge.
The water sealed tank top is equipped with level-one collecting methane pipeline, second level collecting methane pipeline and biogas discharge line, institute
Level-one collecting methane pipe outlet and second level collecting methane pipe outlet are stated in water seal liquid level hereinafter, and level-one collecting methane pipe
Road outlet is different with the water seal height of second level collecting methane pipe outlet, and the water sealed tank side is equipped with water seal water inlet and water seal
Water outlet, by the liquid level under the hydraulic regulation gas gathering mask of different water seal height generations, to control gas from excessive gas
It is flowed out in hole, fill area is backwashed.
The ZHA-03 settling system successively includes sludge pipe, filled layer from top to bottom, overflow weir, the overflow weirIt is connected with water outlet, central tube is equipped with inside the ZHA-03 settling system, the central tube lower part is equipped with reflecting plate.
The rejection effect of sludge can be improved in ZHA-03 settling system, and Mud up-floating is prevented to be lost, and guarantees effluent quality.
Working principle: having a large amount of anaerobic activated sludge in ZHA-F anaerobic reactor tank body lower part, has good sedimentation
The sludge of performance forms Sludge Bed in ZHA-F anaerobic reactor tank base.Sewage to be processed is from water inlet through water distribution branch pipe
It into ZHA-F anaerobic reactor tank body, is mixed with the sludge in sludge blanket, the microorganism decomposition sewage in sludge
In organic matter, it is transformed into biogas.Biogas is constantly released in the form of micro-bubble, some of gas attachments
On mud granule, gas is mingled with partial sludge particle in uphill process.The sludge for rising to three phase separator hits three
The gas gathering mask of phase separator causes the mud granule of bubbles attached to deaerate, and the mud granule after gas release will be deposited to sludge
Bed, mud granule rises and the process of precipitating forms sludge suspension layer.Gas and biogas bubble after release is by three phase separation
The gas gathering mask of device is collected, and is pooled together through gas port by gas collecting tube, is successively received through level-one collecting methane pipeline and second level biogas
Collection pipeline enters water sealed tank and is discharged after biogas carries out gas-liquid separation in water sealed tank through biogas discharge line.By three phase separation
After the effect of device, filled layer is trapped in by filler containing a small amount of sludge in the liquid of rising, microorganism is in filler surface life
Long, breeding, forms biomembrane.By filled layerLiquid, pass through overflow weirFlow out ZHA-F anaerobic reactor.Anaerobic effluent
Enter the central tube in ZHA-03 settling system through anaerobic effluent pipe, sewage is made vertically to flow from top to down, and reflecting plate makes sewage
It is uniformly distributed in ZHA-03 settling system, then sewage slowly rises along the entire cross-section of river, sludge settling in uphill process
To the bottom of ZHA-03 settling system, enter next treatment process through sludge pipe discharge settling system, and settling property is bad
Suspended matter is trapped in filled layer by filler, primary water is from all edge overflow weirsIt is discharged from water outlet.
Backsurging principle: when filled layer I generates blocking, into water sealed tank, moisturizing is high with the water seal for increasing biogas pipeline
It spends, gas-liquid interface can be reduced accordingly under gas gathering mask, when gas-liquid interface is lower than air leakage hole, gas gathering mask air leakage hole of the gas from upper layer
It rapidly flows out, impact is generated to the filler of filled layer, realizes backwashing function.If blocking is serious, water seal height can be continued growing
Degree flows out gas from air leakage hole on multilayer gas gathering mask simultaneously, increases and rinses air-flow, improves backwash effect.
Compared with prior art, the invention has the following advantages:
Novel anaerobic reaction system ZHA-F anaerobic reactor top be equipped with filled layer, it is possible to reduce in, sewage of low concentration
In processing in reactor sludge loss, achieve the purpose that be enriched with anaerobe, increase reaction contact area, improve dirt
Water treatment efficiency.
Three phase separator, can be by changing the water in water sealed tank while realizing that gas, solid, liquid efficiently separate
Envelope height, adjusts liquid level under three phase separator gas gathering mask, changes the circulation path of gas, realizes the backwash to filled layer
Function, prevent filled layer blocking and short stream.
ZHA-03 settling system can carry out effectively catching to the sludge in anaerobic effluent, reduce the suspension in anaerobic effluent
Object guarantees the water quality of water outlet.
Novel anaerobic reaction system structure is simple, design is unique, and in, the process field of low concentration wastewater achieves significantly
Environmental benefit and economic benefit, COD removal rate can reach 80% or more.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Novel anaerobic reaction system.
Fig. 2 is the top perspective view of the three phase separator gas gathering mask of ZHA-F anaerobic reactor.
Fig. 3 is the main view enlarged drawing of the three phase separator gas gathering mask of ZHA-F anaerobic reactor.
Fig. 4 is the monitoring data of embodiment 1.
Fig. 5 is the monitoring data of embodiment 2.
Fig. 6 is the monitoring data of embodiment 3.
Wherein: 1-ZHA-F anaerobic reactor, 2- water inlet, 3- water distribution branch pipe, 4- Sludge Bed, 5- sludge suspension layer, 6- tri-
Phase separator, 7- gas collecting tube, 8- filler support, 9- filled layer, 10- overflow weir, 11- anaerobic effluent pipe, 12- level-one biogas receipts
Collect pipeline, 13- second level collecting methane pipeline, 14- biogas discharge line, 15- water seal water inlet, 16- water sealed tank, 17- water seal row
The mouth of a river, 18-ZHA-03 settling system, 19- reflecting plate, 20- sludge pipe, 21- filled layer, 22- water outlet, 23- overflow weir,
24- central tube, 601- gas gathering mask, 602- air leakage hole, 603- lower flap portion, 604- gas port, the upper layer 901- filler, 902- are filled out in middle layer
Material, 903- lower layer filler.
Specific embodiment
Embodiment 1
It is handled using Novel anaerobic reaction system centering of the invention, low concentration food wastewater.ZHA-F anaerobic reaction
Device a height of 20m, internal diameter 8m, three phase separator use 3-tier architecture, and the cone angle of gas gathering mask is 90 °, each layer of gas gathering mask it is total
Body area coverage is 75%.Filler is the mixture of PLA, PVC, zeolite, volcanic rock and active carbon, and filler divides three by particle size
Layer is loaded, and upper layer packing material size is 10 ~ 15mm, and middle filler partial size is 15 ~ 35mm, and lower layer's packing material size is 35 ~ 50mm,
Upper layer, middle layer, lower layer's filler packed height ratio be 4:5:6.Influent COD is 700 ~ 900mg/L, and ZHA-F anaerobic reactor holds
Product load is 2.18Kg/ (m3D), upflow velocity 1.75m/h.It is detected by long-play, monitoring data such as Fig. 4 institute
Show: when reactor is run with COD for the raw water of 800mg/L or so, water outlet COD is 90mg/L or so, and COD removal rate can reach
90%。
Embodiment 2
It is handled using Novel anaerobic reaction system centering of the invention, low concentration wastewater from chemical industry.ZHA-F anaerobic reaction
Device a height of 20m, internal diameter 8m, three phase separator use 3-tier architecture, and the cone angle of gas gathering mask is 90 °, each layer of gas gathering mask it is total
Body area coverage is 75%.Filler is the mixture of PLA, volcanic rock and active carbon, and filler divides three layers to be filled out by particle size
Dress, upper layer packing material size be 10 ~ 15mm, middle filler partial size be 15 ~ 35mm, lower layer's packing material size be 35 ~ 50mm, upper layer, in
Layer, lower layer's filler packed height ratio be 4:5:6.Influent COD is 1100 ~ 1300mg/L, ZHA-F anaerobic reactor volumetric loading
For 2.18Kg/ (m3D), upflow velocity 1.92m/h.It is detected by long-play, monitoring data are as shown in Figure 5: reaction
When device is run with COD for the raw water of 1200mg/L or so, the removal rate of COD can reach 90%, and water outlet COD is 100mg/L or so.
Embodiment 3
It is handled using Novel anaerobic reaction system centering of the invention, low concentration pharmacy waste water.ZHA-F anaerobic reaction
Device a height of 16m, internal diameter 7m, three phase separator use 4 layers of structure, and the cone angle of gas gathering mask is 60 °, each layer of gas gathering mask it is total
Body area coverage is 50%.Filler is the mixture of PLA, zeolite and volcanic rock, and filler divides three layers to be loaded by particle size,
Upper layer packing material size be 10 ~ 15mm, middle filler partial size be 15 ~ 35mm, lower layer's packing material size be 35 ~ 50mm, upper layer, middle layer,
The packed height ratio of lower layer's filler is 3:4:6.Influent COD is 1000 ~ 1200mg/L, and ZHA-F anaerobic reactor volumetric loading is
5.42Kg/(m3D), upflow velocity 2.36m/h.It is monitored by long-play, monitoring data are as shown in Figure 6: reactor
When being run with the raw water of 1100mg/L or so, COD removal rate is maintained at 80% or more, and water outlet COD is 180mg/L or so.
Claims (6)
1. a kind of anaerobic reaction system, including anaerobic reactor (1), water sealed tank (16) and settling system (18), the anaerobism are anti-
Answer device (1) it is internal successively include from top to bottom Sludge Bed (4), sludge suspension layer (5), three phase separator (6), filled layer I (9),
The bottom of overflow weir I (10), the Sludge Bed (4) are equipped with water distribution branch pipe (3), and the water distribution branch pipe (3) and setting are anti-in anaerobism
The water inlet (2) of device (1) bottom is answered to be connected, the filled layer I (9) is equipped with filler support (8), and filler support (8) is filled out
Material is formed filled layer I (9), and the overflow weir I (10) is connected by anaerobic effluent pipe (11) with settling system (18)；
The three phase separator (6) is divided into 2~6 layers, and each layer is uniformly distributed with several gas gathering masks (601), and each layer is set
There is one group of gas collecting tube (7), the gas collecting tube (7) is connected with same layer gas gathering mask (601), the gas gathering mask (601) point of same layer
Cloth is staggeredly uniformly distributed in identical height level, bilevel gas gathering mask (601), and the totality of each layer of gas gathering mask (601) is covered
Capping product is the 50%~80% of anaerobic reactor (1) cross-sectional area；
The gas gathering mask (601) is cone, and cone angle is 60 °~90 °, is equipped with gas port at the top of the gas gathering mask (601)
(604), each gas gathering mask (601) is equipped with 3~6 air leakage holes (602), and gas gathering mask (601) lower edge is connected with vertically
Downward lower flap portion (603).
2. anaerobic reaction system according to claim 1, which is characterized in that the shape of the air leakage hole (602) is rectangle,
The length of the air leakage hole (602) is the 1/3~1/2 of conical gas gathering mask (601) bus length, the air leakage hole (602)
Length-width ratio is (5~10): 1, the air leakage hole (602) is located on gas gathering mask (601) side, the bottom edge of rectangle air leakage hole (602)
Concordant with gas gathering mask (601) lower edge, adjacent two layers gas gathering mask (601) is equipped with the air leakage hole (602) of different length, lower layer
The length of air leakage hole (602) is the 70%~90% of upper layer air leakage hole (602) length.
3. anaerobic reaction system according to claim 1, which is characterized in that the filler is selected from circle made of PLA or PVC
One of cylinder, the zeolite of sphere and irregular shape, volcanic rock, active carbon are a variety of, and the partial size of the filler is 10
~50mm.
4. anaerobic reaction system according to claim 3, which is characterized in that the filler divides three layers of progress by particle size
It loads, filler (901) partial size in upper layer is 10~15mm, and middle filler (902) partial size is 15~35mm, lower layer's filler (903) grain
Diameter be 35~50mm, upper layer, middle layer, lower layer's filler packed height ratio be 1:(1~2): (1~3).
5. anaerobic reaction system according to claim 1, which is characterized in that the water sealed tank (16) is received equipped with level-one biogas
Collect pipeline (12), second level collecting methane pipeline (13) and biogas discharge line (14), the level-one collecting methane pipeline (12) goes out
Mouth and second level collecting methane pipeline (13) outlet are in water seal liquid level hereinafter, and level-one collecting methane pipeline (12) exports and second level
The water seal height of collecting methane pipeline (13) outlet is different, and water sealed tank (16) side is equipped with water seal water inlet (15) and water seal
Water outlet (17).
6. anaerobic reaction system according to claim 1, which is characterized in that the settling system (18) is from top to bottom successively
Including sludge pipe (20), filled layer II (21), overflow weir II (23), the overflow weir II (23) is connected with water outlet (22),
Central tube (24) are equipped with inside the settling system (18), central tube (24) lower part is equipped with reflecting plate (19).
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341041A (en) * | 2013-08-09 | 2015-02-11 | 南通润泽环境工程技术有限公司 | Treating device for high-concentration organic waste water |
| CN205133235U (en) * | 2015-09-05 | 2016-04-06 | 贵州天保生态股份有限公司 | Bury formula integration domestic sewage treatment equipment |
| CN205527989U (en) * | 2016-04-10 | 2016-08-31 | 郭宝申 | Novel UASB high - rate anaerobic reaction ware |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4312858B2 (en) * | 1998-10-12 | 2009-08-12 | 三菱化工機株式会社 | Upstream anaerobic treatment apparatus and treatment method |
| US7537693B2 (en) * | 2007-05-07 | 2009-05-26 | Zhao Joe R H | Up-flow multi-stage anaerobic reactor (UMAR) |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341041A (en) * | 2013-08-09 | 2015-02-11 | 南通润泽环境工程技术有限公司 | Treating device for high-concentration organic waste water |
| CN205133235U (en) * | 2015-09-05 | 2016-04-06 | 贵州天保生态股份有限公司 | Bury formula integration domestic sewage treatment equipment |
| CN205527989U (en) * | 2016-04-10 | 2016-08-31 | 郭宝申 | Novel UASB high - rate anaerobic reaction ware |
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