CN105836964B - A kind of fixed bed gasification biological treatment of waste water system and method - Google Patents
A kind of fixed bed gasification biological treatment of waste water system and method Download PDFInfo
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- CN105836964B CN105836964B CN201610194778.XA CN201610194778A CN105836964B CN 105836964 B CN105836964 B CN 105836964B CN 201610194778 A CN201610194778 A CN 201610194778A CN 105836964 B CN105836964 B CN 105836964B
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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
- C02F9/00—Multistage 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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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
- C02F3/02—Aerobic processes
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
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- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention relates to a kind of water technologies, more particularly to a kind of fixed bed gasification biological treatment of waste water system, the system includes water inlet pipe and outlet pipe, and the reinforcing dephenolize device including being sequentially connected, strengthened denitrification device and intermittent fluidisation biofiltration device, and respectively with strengthen dephenolize device, the aerator and adder-subtractor that strengthened denitrification device is connected with intermittent fluidisation biofiltration device, it is described to strengthen the carrier A that multiple fixed Phenol-Degradation Bacterias are equipped in dephenolize device, it is provided with the packing layer formed by multiple carrier Bs in the strengthened denitrification device, the inside of carrier B also includes support C and carrier D, the intermittent fluidisation biofiltration device be internally provided with carrier D-shaped at packing layer and porous lifter plate.The system combines the advantage of immobilized microorganism technique and biological reinforcing technology, by strengthening dephenolize, the optimum organization lifting system entirety denitrogenation of three functional areas of strengthened denitrification and intermittent fluidisation biofiltration and dephenolization effect.
Description
Technical field
The present invention relates to a kind of water technology, more particularly to a kind of fixed bed gasification biological treatment of waste water system and side
Method.
Background technology
Coal gasification occupies an important position in China derived energy chemical field, but waste water treatment has become and restricts the industry development
Critical issue.In China, coal clean gas largely uses fixed bed gasification technology.Fixed-bed gasification furnace exit is needed with following
Ring cool water shower cools down, while under organic impurities, undecomposed gasifying agent, tar and the washing of coal gas ash that coal gas is carried
Come, to generate a large amount of waste water, contains ammonia nitrogen in high density and aldehydes matter in waste water.Pretreatment+biology is generally used both at home and abroad
The process route of processing+advanced treating handles fixed bed gasification waste water, still contains through the pretreated waste water of dephenolize ammonia still process highly concentrated
Degree ammonia nitrogen, total phenol and COD, this some of the contaminants need to be effectively removed by biologic treating technique.Existing biological treatment
Technology is still based on activated sludge process, and activated sludge process can remove phenolic compound and COD, but nitrobacteria is easy to be suppressed,
Nitrification is unstable, and hydraulic detention time is very long, and sludge bulking easily occurs, and is discharged ammonia nitrogen and COD is difficult to reach first grade discharging
Standard.
In recent years, immobilized microorganism technique and biological reinforcing technology are increasingly being applied at the biology of industrial wastewater
Reason.Fixed bed gasification waste component is complicated, ammonia nitrogen and total phenol concentration are high, variation water quality is big, by immobilized microorganism technique and
The reasonable utilization of biological reinforcing technology can improve treatment effect, reduce operating cost.Therefore, how a kind of fixed bed is provided
Gasification waste water biological treatment system and method, to improve treatment effect, it is that this field needs to solve at present to reduce operating cost
Technical problem.
Invention content
The present invention provides a kind of fixed bed gasification biological treatment of waste water system, can improve water treatment effect and biology department
The stability of system reduces operational administrative intensity, reduces floor space and operating cost.
The present invention also provides a kind of fixed bed gasification method for biologically treating wastewater, and it is thin that this method is pointedly enriched with advantage
Bacterium improves the concentration and stability of microorganism, improves dephenolize and denitrification effect, reduces operating cost.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of fixed bed gasification biological treatment of waste water system, the system include water inlet pipe and outlet pipe, and including successively
Connected reinforcing dephenolize device, strengthened denitrification device and intermittent fluidisation biofiltration device, and respectively with strengthen dephenolize device,
The aerator and adder-subtractor that strengthened denitrification device is connected with intermittent fluidisation biofiltration device, in the reinforcing dephenolize device
Carrier A equipped with multiple fixed Phenol-Degradation Bacterias is provided with the packing layer formed by multiple carrier Bs in the strengthened denitrification device, carries
The inside of body B also includes support C and carrier D, the intermittent fluidisation biofiltration device be internally provided with carrier D-shaped at fill out
The bed of material and porous lifter plate, porous lifter plate positioned at carrier D-shaped at packing layer in and by electric cylinder drive and realize lift,
The carrier A is spherical occlusion vehicle, and the carrier B includes external sphere and inner ball, the external sphere
It is concentric latticed hollow ball with inner ball, grid is the quadrangle of 10~15mm of the length of side, the external sphere and internal ball
Body is concentric, is connected by connecting rod；The support C aperture is 0.8~1.5mm, within the internally positioned sphere of support C, is filled out
It is 35%~40% to fill rate, and the apertures the carrier D are 3~5mm, and the carrier D is filled out between external sphere and inner ball
It is 50%~60% to fill rate.
The reinforcing dephenolize device fixes Phenol-Degradation Bacteria using carrier A, and noxious material is to de- in mitigation fixed bed gasification waste water
The inhibition of phenol bacterium is strengthened the avoidable subsequent processing units nitrification of dephenolize and is inhibited by high-concentration phenol；The strengthened denitrification
Stable biocoene is formed by the optimum organization of setting tri- kinds of carrier B, support C and carrier D carriers in device and is constructed aerobic
Area, anoxic zone and anaerobic zone, the strengthened denitrification effect in the way of synchronous nitration and denitrification, removal ammonia nitrogen, organic matter and total nitrogen；
Microorganism organics removal, ammonia nitrogen and the total nitrogen that intermittent fluidisation biofiltration device is adhered to by carrier D, pass through porous lifter plate
Lift action Local Contraction filter and remove suspended substances are carried out to carrier D.
Preferably, the carrier A is the polyvinyl alcohol gel carrier of 3~5mm of diameter, the external sphere diameter
200mm, the inner ball diameter 100mm, the support C are diameter 20~30mm polyurethane cellular spheres, and the carrier D is
The length of side 30~40mm polyurethane cellular cubes.
Preferably, the aerator includes wind turbine and the aeration manifold being connected with wind turbine, aeration manifold separates 4 exposures
Gas branch, respectively be located at strengthen dephenolize bottom of device aeration branch pipe A, positioned at strengthened denitrification bottom of device aeration branch pipe B,
Aeration branch positioned at the aeration branch pipe C of intermittent fluidisation biofiltration device bottom and positioned at intermittent fluidisation biofiltration device side
Pipe D.
Preferably, aeration branch pipe A is located at the lower section for the packing layer that carrier A is formed, the packing layer in strengthened denitrification device
It is respectively equipped with porous pressing plate and porous supporting plate above and below, aeration branch pipe B is located at the lower section of porous supporting plate, intermittent fluidisation biology
Packing layer in filter device is respectively equipped with porous pressing plate and porous supporting plate above and below, and aeration branch pipe C is located at the porous supporting plate
Lower section.
Preferably, strengthening dephenolize bottom of device is equipped with blow-down pipe, strengthened denitrification device and intermittent fluidisation biofiltration dress
Bottom set portion is respectively equipped with sludge bucket and sludge pipe.
Preferably, adder-subtractor is made of lye tank plus alkali pipe A plus alkali pipe B, metering pump A and metering pump B, the meter
Amount pump A with plus alkali pipe A be connected and add lye to strengthened denitrification device, the metering pump B is connected with alkali pipe B is added to intermittent flow metaplasia
Object filter device adds lye.
A method of it adopting the fixed bed gasification biological treatment of waste water system and a gasification waste water biological treatment is fixed,
This method specifically includes following steps：
1. the fixed bed gasification waste water after materialized pretreatment is passed through the reinforcing dephenolize device, the carrier A exists
The filling rate strengthened in dephenolize device is 15%~20%, and the carrier A embeds Phenol-Degradation Bacteria, is acted on by embedded immobilization
It prevents Phenol-Degradation Bacteria to be lost in and strengthens dephenolization effect, controlling the reinforcing dephenolize device dissolved oxygen concentration by the aerator protects
It holds in 2~3mg/L；
2. the fixed bed gasification waste water gravity flow after strengthening dephenolize enters the strengthened denitrification device, pass through the aeration
Device controls the strengthened denitrification device dissolved oxygen concentration and is maintained at 2~2.5mg/L, and carrier is provided in strengthened denitrification device
B, support C and carrier D form stable biocoene by the combination of three kinds of carriers and construct aerobic zone, anoxic zone and anaerobic zone,
The strengthened denitrification effect by way of synchronous nitration and denitrification, removal ammonia nitrogen, COD and total nitrogen；
3. entering intermittent fluidisation biofiltration device, control by strengthened denitrification treated fixed bed gasification waste water gravity flow
The intermittent fluidisation biofiltration device dissolved oxygen concentration is maintained at 2.5~3.5mg/L, is gone by the carrier D microorganisms adhered to
Except organic matter, ammonia nitrogen and total nitrogen.
Preferably, step 3. in, porous lifter plate mild compression upper carrier forms filter layer and realizes going for suspended matter
It removes, porous lifter plate is reduced when filter layer blocks and strengthened denitrification device liquid level is caused to rise 200mm, mild compression lower part carries
Body simultaneously loosens upper carrier, and intermittent fluidisation is realized by the lateral aeration of aeration branch pipe D, to promote falling off for impurity on carrier,
Porous lifter plate is promoted to initial position after nitrogen rejection facility liquid level value back to normal to be fortified.
Preferably, the total hrt of system is 55~65h.
Compared with prior art, the present invention having the following advantages and beneficial effect：
(1) strengthen dephenolize device and fix High-Efficiency Phenol-Degradation Bacteria using occlusion vehicle, the loss of Phenol-Degradation Bacteria can be effectively reduced, mitigate
Inhibition of the noxious material to Phenol-Degradation Bacteria in fixed bed gasification waste water effectively removes avoidable subsequent processing units to aldehydes matter
Nitrification is suppressed.
(2) strengthened denitrification device forms stable biocoene by the optimum organization of three kinds of carriers and constructs aerobic zone, lacks
Oxygen area and anaerobic zone, the strengthened denitrification effect in the way of synchronous nitration and denitrification, removal ammonia nitrogen, COD and total nitrogen, biomass
Greatly, hydraulic detention time is short, than the consumption that conventional denitrification process reduces oxygen and basicity, is returned without sludge reflux and nitrification liquid
Stream realizes that the switching of aerobic environment and anaerobic environment, operational administrative are simple without changing operating condition.
(3) intermittent fluidisation biofiltration device realizes that carrier fluidizes using porous lifter plate and interval turbulent flow aeration, can promote
Biomembrane into aging periodically falls off, and carrier abrasion and microorganism are lost in caused by not only having can avoid lasting fluidisation, but also can avoid carrying
Dirt caused by body crowded suspension for a long time is stifled.
(4) system combines the advantage of immobilized microorganism technique and biological reinforcing technology, by reinforcing dephenolize, by force
The optimum organization lifting system entirety denitrogenation and dephenolization effect, waterpower for changing three functional areas of denitrogenation and intermittent fluidisation biofiltration stop
Stay the time short (for fixed bed gasification waste water, conventional biological treatment system total hrt is generally higher than 90 hours),
Floor space is small, and capacity of resisting impact load is strong, and convenient operation and management, low energy consumption.
Description of the drawings
Fig. 1 is the structural diagram of the present invention,
Fig. 2 is that carrier structure schematic diagram is combined in strengthened denitrification device；
In figure：1, strengthen dephenolize device, 11, carrier A, 12, water inlet pipe, 13, blow-down pipe, 14, intercept net, 2, strengthened denitrification
Device, 21, support C, 22, carrier D, 3, intermittent fluidisation biofiltration device, 4, carrier B, 31, outlet pipe, 51, porous lifting
Plate, 52, porous pressing plate, 53, porous supporting plate, 54, sludge bucket, 55, sludge pipe, 61, wind turbine, 62, aeration manifold, 63, aeration
Branch pipe A, 64, aeration branch pipe B, 65, aeration branch pipe C, 66, aeration branch pipe D, 71, lye tank, 72 plus alkali pipe A, 73 plus alkali pipe B,
74, metering pump A, 75, metering pump B.
Specific implementation mode
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention will be further explained in detail.It answers
Work as understanding, implementation of the invention is not limited to the following examples, the accommodation in any form done to the present invention and/or
Change falls within the scope of the present invention.
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, used equipment and raw material etc.
It is commercially available or commonly used in the art.Method in following embodiments is unless otherwise instructed the normal of this field
Rule method.
Aeromonas Phenol-Degradation Bacteria, model BNCC180874, Su Zhoubei Na Chuanlian Bioisystech Co., Ltd,
The source of fixed bed gasification waste water：Certain natural gas from coal enterprise.
Embodiment
A kind of fixed bed gasification biological treatment of waste water system as depicted in figs. 1 and 2, including strengthen dephenolize device 1, strengthen
It is solid using carrier A11 to strengthen dephenolize device 1 for nitrogen rejection facility 2, intermittent fluidisation biofiltration device 3, aerator and adder-subtractor
Determine Phenol-Degradation Bacteria, mitigate inhibition of the noxious material to Phenol-Degradation Bacteria in fixed bed gasification waste water, strengthens dephenolize and can avoid subsequent processing list
First nitrification is inhibited by high-concentration phenol, and strengthened denitrification device 2 is provided with carrier B 4, support C 21 and carrier D22, passes through
The optimum organization of tri- kinds of carrier B 4, support C 21 and carrier D22 carriers forms stable biocoene and constructs aerobic zone, anoxic zone
And anaerobic zone, ammonia nitrogen, organic matter and total nitrogen, intermittent fluidisation biofiltration device 3 are removed in the way of synchronous nitration and denitrification
Be internally provided with the packing layer and porous lifter plate 51 that carrier D22 is formed, porous lifter plate be located at carrier D-shaped at packing layer in
And it is driven by electric cylinder and is realized and lift.Intermittent fluidisation biofiltration device 3 is removed organic by the fixed microorganisms of carrier D22
Object, ammonia nitrogen and total nitrogen carry out Local Contraction filter and remove suspended substances by the lift action of porous lifter plate 51 to carrier D22；
Carrier A11 is spherical occlusion vehicle, and carrier B 4 includes external sphere 41 and inner ball 41, external sphere 41 and inner ball 42
For concentric latticed hollow ball, grid is the quadrangle of length of side 10mm, and external sphere 41 and inner ball 42 are concentric, pass through connection
Bar 43 is connected；21 aperture of support C is 0.8~1.5mm, and within 21 internally positioned sphere 42 of support C, filling rate (volume ratio) is
The aperture 37%, carrier D22 is 3~5mm, and carrier D22 is between external sphere 41 and inner ball 42, filling rate 58%.
Carrier A11 is diameter 4mm polyvinyl alcohol gel carriers, 41 diameter 200mm of external sphere, 42 diameter of inner ball
100mm, the support C 21 are diameter 30mm polyurethane cellular spheres, and the carrier D22 is length of side 40mm polyurethane cellulars cube
Body.
Aerator includes wind turbine 61 and the aeration manifold 62 being connected with wind turbine 61, and aeration manifold 62 separates 4 aeration branch
Road is to be located at aeration branch pipe A63, the aeration branch pipe positioned at 2 bottom of strengthened denitrification device of strengthening 1 bottom of dephenolize device respectively
B64, positioned at 3 bottom of intermittent fluidisation biofiltration device aeration branch pipe C65 and be located at intermittent fluidisation biofiltration device side
Aeration branch pipe D66.
Reinforcing dephenolize device, strengthened denitrification device and intermittent fluidisation biofiltration device pass sequentially through pipeline and are connected, system
The setting of water inlet pipe 12 on strengthening dephenolize device 1, the outlet pipe 31 of system is arranged on intermittent fluidisation biofiltration device 3.
Strengthen the intercept net 14 that dephenolize device is equipped with blow-down pipe 13 and carrier A is prevented to be lost in, strengthened denitrification device 2, interval
It is equipped with porous pressing plate 52, porous supporting plate 53, sludge bucket 54, sludge pipe 55 in fluidisation biofiltration device 3.
Adder-subtractor is made of lye tank 71 plus alkali pipe A72 plus alkali pipe B73, metering pump A74 and metering pump B75, is measured
Pump A74 with plus alkali pipe A72 be connected and add lye to strengthened denitrification device 2, metering pump B75 is connected with alkali pipe B73 is added to intermittent flow
Change biofiltration device 3 and adds lye.
A method for gasification waste water processing, specific steps are fixed using fixed bed gasification biological treatment of waste water system
For：
Strengthen dephenolize device 1 1. the fixed bed gasification waste water after materialized pretreatment is passed through, carrier A11 is de- in reinforcing
Filling rate in phenol device 1 is 20%, and (BNCC180874, Su Zhoubei receive creates connection life to carrier A11 embedding Aeromonas Phenol-Degradation Bacteria
Object Technology Co., Ltd.), it prevents degassing zygosaccharomyces Phenol-Degradation Bacteria to be lost in and strengthen dephenolization effect by embedded immobilization effect, leads to
It crosses aerator control reinforcing dephenolize device dissolved oxygen concentration and is maintained at 2.5~3mg/L；
2. the fixed bed gasification waste water gravity flow after strengthening dephenolize enters strengthened denitrification device 2, pass through aerator control
It makes 2 dissolved oxygen concentration of strengthened denitrification device and is maintained at 2~2.5mg/L, be provided with containing carrier in strengthened denitrification device 2
The carrier D22 of B4 and support C 21, the activity after strengthened denitrification device startup stage adds certain sewage treatment plants press filtration are dirty
Mud can adhere to one layer of stable life after strengthened denitrification device stable operation, on the grid of external sphere 41 and inner ball 42
Object film, appropriate aeration can form dissolved oxygen concentration subregion (aerobic zone, anoxic zone and anaerobic zone), external sphere in carrier B 4
41, the aerobic nitrification bacterium of inner ball 42 and carrier D22 attachment can make full use of oxygen to carry out nitrification, and support C 21
The anaerobic denitrifying bacteria of attachment can carry out denitrification in local anaerobic microenvironment, and high ammonia-nitrogen wastewater is in nitration reaction
A large amount of basicity can be consumed in the process, the basicity of aerobic zone consumption can be replenished in time in the basicity of anaerobic zone denitrification release, this
Sample just forms stable biocoene by the combination of three kinds of carriers and constructs aerobic zone, anoxic zone and anaerobic zone, passes through synchronous nitre
Change denitrifying mode and remove ammonia nitrogen, COD and total nitrogen, effectively prevents lacking Nitrification Inhibition caused by basicity；
3. enter intermittent fluidisation biofiltration device 3 by strengthened denitrification treated fixed bed gasification waste water gravity flow,
Intermittent fluidisation biofiltration device startup stage adds the activated sludge after certain sewage treatment plants press filtration, in intermittent flow metaplasia
After object filter device stable operation, control intermittent fluidisation biofiltration device dissolved oxygen concentration is maintained at 2.5~3.5mg/L, leads to
Cross microorganism organics removal, ammonia nitrogen and the total nitrogen of carrier D attachment, under nominal situation, 51 mild compression top of porous lifter plate
Carrier forms the removal that filter layer realizes suspended matter, when filter layer blocks and 2 liquid level of strengthened denitrification device is caused to rise 200mm
Porous lifter plate 51 is reduced, mild compression lower carrier simultaneously loosens upper carrier, is realized by the lateral aeration of aeration branch pipe D66
Intermittent fluidisation promotes porous lifter plate to promote falling off for impurity on carrier after nitrogen rejection facility liquid level value back to normal to be fortified
51 to initial position.
Hydraulic detention time be 56 it is small in the case of, in try out water be by the materialized pretreatments work such as dephenolize, ammonia still process
Skill treated certain natural gas from coal enterprise fixed bed gasification waste water carries out water quality monitoring, the present embodiment after system stable operation
Water monitoring data in continuous operation 92 days is as shown in table 1.
Water monitoring data in table 1 between trial run period
As it can be seen from table 1 system, under conditions of being not provided with anaerobic device, effluent quality is highly stable, avoid because
Anaerobic device hydraulic detention time is long and the problem of influence system overall treatment efficiency, all indicators are better than《Integrated wastewater is arranged
Put standard》(GB8978-1996) first discharge standard.Strengthen dephenolize device and be discharged total phenol≤37.5mg/L, avoids high concentration
Inhibition of the phenol to strengthened denitrification device nitrification, strengthened denitrification device eliminate ammonia nitrogen and total nitrogen simultaneously, realize stable
Synchronous nitration and denitrification, intermittent fluidisation biofiltration device have both the advantage of biological fluidized bed and biological aerated filter, avoid
Filtrate dirt caused by abrasion and conventional filtration mode of the lasting fluidisation carrier is stifled.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, on the premise of not exceeding the technical scheme recorded in the claims also other variations and modifications.
Claims (9)
1. a kind of fixed bed gasification biological treatment of waste water system, the system include water inlet pipe and outlet pipe, which is characterized in that including
The reinforcing dephenolize device being sequentially connected（1）, strengthened denitrification device（2）With intermittent fluidisation biofiltration device（3）, and respectively with
Strengthen dephenolize device, the aerator and adder-subtractor that strengthened denitrification device is connected with intermittent fluidisation biofiltration device, it is described
Strengthen dephenolize device（1）The interior carrier A equipped with multiple fixed Phenol-Degradation Bacterias（11）, the strengthened denitrification device（2）Inside be provided with by
Multiple carrier Bs（4）The inside of the packing layer of formation, carrier B also includes support C（21）And carrier D（22）, the intermittent fluidisation
Biofiltration device（3）It is internally provided with carrier D（22）The packing layer of formation and porous lifter plate（51）, porous lifter plate is located at
Carrier D-shaped at packing layer in and by electric cylinder drive and realize lift,
The carrier A（11）For spherical occlusion vehicle, the carrier B（4）Including external sphere（41）And inner ball（42）, institute
State external sphere（41）And inner ball（42）For concentric latticed hollow ball, grid is the quadrangle of 10 ~ 15mm of the length of side, described
External sphere（41）And inner ball（42）With one heart, pass through connecting rod（43）It is connected；The support C（21）Aperture be 0.8 ~
1.5mm, the support C（21）Internally positioned sphere（42）Within, filling rate is 35% ~ 40%, the carrier D（22）Aperture be 3 ~
5mm, the carrier D（22）Positioned at external sphere（41）And inner ball（42）Between, filling rate is 50% ~ 60%.
2. fixed bed gasification biological treatment of waste water system according to claim 1, which is characterized in that the carrier A（11）
For the polyvinyl alcohol gel carrier of 3 ~ 5mm of diameter, the external sphere（41）Diameter 200mm, the inner ball（42）Diameter
100mm, the support C（21）For diameter 20 ~ 30mm polyurethane cellular spheres, the carrier D（22）For the poly- ammonia of 30 ~ 40mm of the length of side
The porous cube of ester.
3. fixed bed gasification biological treatment of waste water system according to claim 1, which is characterized in that the aerator packet
Include wind turbine（61）The aeration manifold being connected with wind turbine（62）, aeration manifold separates 4 aeration branches, is to be located to strengthen to take off respectively
Phenol device（1）The aeration branch pipe A of bottom（63）, be located at strengthened denitrification device（2）The aeration branch pipe B of bottom（64）, be located at interval
Fluidize biofiltration device（3）The aeration branch pipe C of bottom（65）With positioned at intermittent fluidisation biofiltration device（3）The aeration of side
Branch pipe D（66）.
4. fixed bed gasification biological treatment of waste water system according to claim 3, which is characterized in that aeration branch pipe A is located at
The lower section for the packing layer that carrier A is formed, strengthened denitrification device（2）Interior packing layer is respectively equipped with porous pressing plate above and below（52）With
Porous supporting plate（53）, aeration branch pipe B is located at porous supporting plate（53）Lower section, the filler in intermittent fluidisation biofiltration device
Layer is respectively equipped with porous pressing plate above and below（52）With porous supporting plate（53）, aeration branch pipe C is located at the porous supporting plate（53）Under
Side.
5. fixed bed gasification biological treatment of waste water system according to claim 1, which is characterized in that strengthen dephenolize device bottom
Portion is equipped with blow-down pipe, and strengthened denitrification device and intermittent fluidisation biofiltration device bottom are respectively equipped with sludge bucket and sludge pipe.
6. fixed bed gasification biological treatment of waste water system according to claim 1, which is characterized in that adder-subtractor is by lye
Case plus alkali pipe A plus alkali pipe B, metering pump A and metering pump B compositions, the metering pump A are connected with alkali pipe A is added to strengthened denitrification dress
Set and add lye, the metering pump B with plus alkali pipe B be connected and add lye to intermittent fluidisation biofiltration device.
7. a kind of be fixed using fixed bed gasification biological treatment of waste water system described in claim 1 at a gasification waste water biology
The method of reason, it is characterised in that this method specifically includes following steps：
1. the fixed bed gasification waste water after materialized pretreatment is passed through the reinforcing dephenolize device, the carrier A is described
It is 15% ~ 20% to strengthen the filling rate in dephenolize device, and the carrier A embeds Phenol-Degradation Bacteria, described in aerator control
Strengthen dephenolize device dissolved oxygen concentration and is maintained at 2 ~ 3mg/L；
2. the fixed bed gasification waste water gravity flow after strengthening dephenolize enters the strengthened denitrification device, pass through the aerator
It controls the strengthened denitrification device dissolved oxygen concentration and is maintained at 2 ~ 2.5mg/L, carrier B is provided in strengthened denitrification device, is carried
Body C and carrier D forms stable biocoene by the combination of three kinds of carriers and constructs aerobic zone, anoxic zone and anaerobic zone, passes through
The mode strengthened denitrification effect of synchronous nitration and denitrification, removal ammonia nitrogen, COD and total nitrogen；
3. entering intermittent fluidisation biofiltration device by strengthened denitrification treated fixed bed gasification waste water gravity flow, described in control
Intermittent fluidisation biofiltration device dissolved oxygen concentration is maintained at 2.5 ~ 3.5mg/L, is removed by the microorganism that carrier D adheres to organic
Object, ammonia nitrogen and total nitrogen.
8. the method for fixed bed gasification biological wastewater treatment according to claim 7, which is characterized in that step 3. in, it is more
Hole lifter plate mild compression upper carrier forms the removal that filter layer realizes suspended matter, causes strengthened denitrification when filter layer blocks
Device liquid level reduces porous lifter plate when rising 200mm, and mild compression lower carrier simultaneously loosens upper carrier, passes through aeration branch pipe
The lateral aeration of D realizes intermittent fluidisation, to promote falling off for impurity on carrier, after nitrogen rejection facility liquid level value back to normal to be fortified
Porous lifter plate is promoted to initial position.
9. the method for fixed bed gasification biological wastewater treatment according to claim 7, which is characterized in that total waterpower of system
Residence time is 55 ~ 65h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610194778.XA CN105836964B (en) | 2016-03-31 | 2016-03-31 | A kind of fixed bed gasification biological treatment of waste water system and method |
Applications Claiming Priority (1)
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| CN106315846A (en) * | 2016-11-14 | 2017-01-11 | 安徽华骐环保科技股份有限公司 | Periodic air-lift disturbance denitrification nitrogen removal device and treating method thereof |
| CN108083431B (en) * | 2017-09-27 | 2021-01-26 | 大连大学 | Biological nitrogen removal reactor of sewage based on two-stage reaction |
| CN110482715A (en) * | 2019-09-04 | 2019-11-22 | 黄河三角洲京博化工研究院有限公司 | A method of synchronous nitration denitrification denitrogenation is realized using immobilized microorganism technique |
| CN110981092B (en) * | 2019-12-11 | 2021-12-24 | 中煤科工集团杭州研究院有限公司 | Biological phenol-reducing denitrification system and method for coal chemical wastewater |
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| CN2782667Y (en) * | 2005-03-31 | 2006-05-24 | 上海中耀环保实业有限公司 | Outer cover type arc stack suspension organism carrier |
| CN103936186A (en) * | 2014-03-05 | 2014-07-23 | 新疆龙宇能源淮东煤化工有限责任公司 | Method for treating crushed coal pressurization gasification process sewage through membrane technology |
| CN204022548U (en) * | 2014-06-12 | 2014-12-17 | 北京科净源科技股份有限公司 | A kind of denitrification organisms ball |
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| CN2782667Y (en) * | 2005-03-31 | 2006-05-24 | 上海中耀环保实业有限公司 | Outer cover type arc stack suspension organism carrier |
| CN103936186A (en) * | 2014-03-05 | 2014-07-23 | 新疆龙宇能源淮东煤化工有限责任公司 | Method for treating crushed coal pressurization gasification process sewage through membrane technology |
| CN204022548U (en) * | 2014-06-12 | 2014-12-17 | 北京科净源科技股份有限公司 | A kind of denitrification organisms ball |
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