CN205023938U - Gas lift formula circulation immoblilization biofilm reactor - Google Patents
Gas lift formula circulation immoblilization biofilm reactor Download PDFInfo
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- CN205023938U CN205023938U CN201520603147.XU CN201520603147U CN205023938U CN 205023938 U CN205023938 U CN 205023938U CN 201520603147 U CN201520603147 U CN 201520603147U CN 205023938 U CN205023938 U CN 205023938U
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- housing
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to a gas lift formula circulation immoblilization biofilm reactor, the reactor includes that casing, water inlet, air inlet, draft tube, high strength support filter screen, water distributor, air distrubition duct, drain, separator, overflow weir and biofilm carrier pack, the casing is the hollow tube -shape body, and this casing intussuseption is equipped with biofilm carrier and is packed, and the coaxial system in bottom of this casing has a toper bobbin base, and the bottom of this toper bobbin base sets up the drain, and the top of this casing sets up separator, the coaxial suit of overflow weir is connected the setting outside the casing and with separator. Whole equipment structure is simple, with low costs for this reactor, and the biomembrane forms soon, and the operation is stable, and water conservancy dwell time is short, and the treatment effect is good, has reduced traditional effluent treatment plant's area moreover greatly, has utilized the advantage of biological deodorization equipment waste water fully, simultaneously, also reduces the infrastructure expense and the running cost of reactor, consequently can the wide application in sewage treatment works.
Description
Technical field
The utility model belongs to environment bioengineering technical field, relates to a kind of water treatment device, especially a kind of Airlift circulating fixed biofilm reactor, and this biofilm reactor may be used for sewage work's secondary water outlet residual organic matter depth degradation aspect.
Background technology
In the last few years, body eutrophication problem was day by day serious, utilized the focus that biological process removes nitrogen in waste water, phosphorus becomes current research.Although the biologic treating technique of sewage is worldwide widely used, as activated sludge process, biological filter, biological contact oxidation tower and blodisc etc., chemical oxygen demand (COD) in waste water can be reduced to a certain extent.But simultaneously, these methods also exist take up an area many, invest the drawbacks such as high, working cost is high, energy consumption is high, processing efficiency is low, and sewage after treatment, still contain phosphorus, nitrogen and be difficult to biodegradable organism, mineral substance, pathogenic agent etc., be that colloid and dissolved state exist in sewage, need further purifying treatment, so that decontamination.
The new and effective sewage disposal technology risen since biofilm reactor is the seventies, it utilizes carrier and sewage to form mixed stream, and one deck microbial film is grown gradually on carrier, sewage purification process is exactly be attached on carrier and be suspended in the metabolic processes of the microorganism between carrier.By the metabolism of microorganism, make the organic pollutant in solution, colloid and fine suspended state in waste water, be converted into the waste water treatment process of stable, harmless material.But, due to the high vibration of inside reactor liquid, often there will be biofilm failure or come off, biofilm development cannot reach balance, biofilm thickness such as cannot to regulate at the shortcoming, reduces the efficiency of biomembrance process process waste water.In addition, the kind of carrier has certain specificity to the utilization ratio of biomembranous proterties, oxygen and waterpower distribution occasion etc., and range of application is little, and carrier cost is high, limits the promotion and application of biomembrance process.To dispose of sewage middle Problems existing to solve above-mentioned biomembrance process, needing to develop a kind of novel biofilm reactor, to meet the continuable recycle of water resources, and set up the needs of environment-friendly type dirty water living creature processing technique.
By retrieval, find patent publication us as relevant to present patent application in next chapter:
Utilize method and the special biomembrane reactor (CN1935691) of Biomembran repair water body, disclose a kind of method and the method special biomembrane reactor that utilize biomembrance process reparation water body, its key part is that a kind of thin-wall macro-aperture road ceramic honeycomb is as biofilm carrier.This carrier is hung in reactor, by reactor bottom aeration, defines internal airlift loop bioreactor.Contaminated surface water is passed in this reactor, within 1 hour residence time, ammonia nitrogen removal more than 95% wherein can be made.The inventive method efficiently can repair contaminated river course, lake and view waters etc. rapidly, recovers the original beautiful view of surface water and function of water body.In addition this bio-reactor can also carry out advanced treatment to the water outlet after municipal sewage plant's second-stage treatment, reaches the pretreated object of Treated sewage reusing.
By contrast, there are the different of essence in present patent application and above-mentioned patent publication us.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, provides the Airlift circulating fixed biofilm reactor for sewage work's secondary water outlet residual organic matter depth degradation that a kind of structure is simple, cost is low, use range is wide, biofilm formation is fast, stable, hydraulic detention time is short, treatment effect is good.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of Airlift circulating fixed biofilm reactor, described reactor comprises housing, water-in, inlet mouth, guide shell, high strength supports filtering net, inlet distribution device, air distribution pipe, sewage draining exit, tripping device, overflow weir and biofilm carrier filler, described housing is the cylindrical body of hollow, biofilm carrier filler is filled with in this housing, the bottom of this housing is coaxially shaped with at the bottom of conically shaped, bottom at the bottom of this conically shaped arranges sewage draining exit, the top of this housing arranges tripping device, described overflow weir coaxial package is outer and be connected with tripping device and arrange in housing,
Described housing bottom side arranges water-in and inlet mouth, housing above at the bottom of described conically shaped is provided with the inlet distribution device and air distribution pipe that arrange in the horizontal direction, described inlet distribution device is connected with water-in and arranges, and described air distribution pipe is connected with inlet mouth and arranges;
High strength is set in the housing above described air distribution pipe in the horizontal direction and supports filtering net, in the housing that described high strength supports plane on filtering net, along the circumferential direction uniform interval arranges the guide shell vertically arranged of more than three or three, air distribution pipe below each guide shell axis all vertically arranges a gas injection tube, this gas injection tube is used for the axis place jet flow stream to each guide shell corresponding thereto, and gap in each guide shell and each other is all filled with biofilm carrier filler;
Described guide shell and tripping device are that interval is arranged.
And the clearance control of each guide shell is 1/5 of draft tube diameter; Each guide shell aspect ratio is 5, and housing inner draft tube cross-sectional area and circulating-area cross-sectional area are than being 1:1.
And described biofilm carrier filler is macromolecular material porous web, columnar activated carbon or porous ceramics.
And macromolecular material porous web is PVC porous screen cloth.
And described housing is right cylinder, and top and bottom are plane, the aspect ratio of housing is 7.
Advantage of the present utility model and positively effect are:
1, this reactor adopts airlift loop bioreactor to combine with biomembrance process, integral device structure is simple, cost is low, biofilm formation is fast, and stable, hydraulic detention time is short, treatment effect is good, and substantially reduce the floor space of traditional wastewater treatment equipment, make use of the advantage of biomembrance process process waste water fully, simultaneously, also reduce capital construction expense and the running cost of reactor, therefore can be widely used in sewage treatment project.
2, this reactor is from bottom inflow, flowing water is regular, form good mixing and reaction conditions, shearing force is little, mixing mass transfer effect is good, microorganism is made to obtain sufficient oxygen, and make effluent cycle, increase treatment effect, good sewage processing effect, simultaneously can make process again after water reach Effluent criteria.
3, the housing bottom of this reactor is shaped with conically shaped, the setting at the bottom of conically shaped, and the mud after filtering can all be flowed at the bottom of conically shaped, and do not have residual, the bottom at the bottom of this conically shaped arranges sewage draining exit, and mud is discharged from sewage draining exit.
4, this reactor hydraulic detention time is short, is conducive to being attached to the startup of microorganism competition on carrier and Biofilm Colonization; This reactor can control the excessive increase of biofilm thickness, and carrier free runs off; This reactor significantly increases bubble and waste water time, the utilization ratio of oxygen is improved, treatment effect is improved significantly.
Accompanying drawing explanation
Fig. 1 is that anatomical connectivity of the present utility model partly cuts open schematic diagram.
Fig. 2 be in Fig. 1 A-A to housing and the anatomical connectivity cross-sectional schematic (omitting biofilm carrier filler) of guide shell.
Embodiment:
Below by specific embodiment, the utility model is described in further detail, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
The structure do not described in detail in the utility model, annexation and method, all can be understood as the common practise in this area.
A kind of Airlift circulating fixed biofilm reactor, as depicted in figs. 1 and 2, described reactor comprises housing 9, water-in (in figure non-label), inlet mouth (in figure non-label), guide shell 8, high strength supports filtering net 7, inlet distribution device 5, air distribution pipe, sewage draining exit 6, tripping device 1, overflow weir 2 and biofilm carrier filler 3, described housing is the cylindrical body of hollow, biofilm carrier filler is filled with in this housing, the bottom of this housing is coaxially shaped with (in figure non-label) at the bottom of conically shaped, setting at the bottom of conically shaped, mud after filtering can all be flowed at the bottom of conically shaped, do not have residual, bottom at the bottom of this conically shaped arranges sewage draining exit, mud is discharged from sewage draining exit, the top of this housing arranges tripping device, for separating of the water after housing purification, described overflow weir coaxial package is outer and be connected with tripping device and arrange in housing, the clean water that tripping device is separated flows in overflow weir, flow out from overflow weir again, and then carry out next step operation,
Described housing bottom side arranges water-in and inlet mouth, housing above at the bottom of described conically shaped is provided with the inlet distribution device and air distribution pipe that arrange in the horizontal direction, described inlet distribution device is connected with water-in and arranges, and described air distribution pipe is connected with inlet mouth and arranges;
High strength is set in the housing above described air distribution pipe in the horizontal direction and supports filtering net, this high strength supports filtering net can play support effect to the biofilm carrier filler loaded in housing, simultaneously, passing through of gas and liquid is not stoped yet, in the housing that described high strength supports plane on filtering net, along the circumferential direction uniform interval arranges the guide shell vertically arranged of more than three or three, air distribution pipe below each guide shell axis is all vertically arranged a gas injection tube 4, this gas injection tube is used for the axis place jet flow stream to each guide shell corresponding thereto, gap in each guide shell and each other is all filled with biofilm carrier filler, sewage flows through biofilm carrier filler from bottom to top, finally overflow process water, enter overflow weir,
Described guide shell and tripping device are that interval is arranged.
In the present embodiment, the clearance control of each guide shell is 1/5 of draft tube diameter; Each guide shell aspect ratio is 5, and housing inner draft tube cross-sectional area and circulating-area cross-sectional area are than being 1:1.
In the present embodiment, described biofilm carrier filler is macromolecular material porous web (as PVC porous screen cloth), columnar activated carbon or porous ceramics etc.
In the present embodiment, described housing is right cylinder, and top and bottom are plane, and the aspect ratio of housing is 7.
The sewage kind of this Airlift circulating fixed biofilm reactor process can comprise the secondary water outlet of production waste and sanitary sewage, as city domestic sewage, coking chemical waste water, coal gasification waste water, dyeing waste water, beer waste water, Dairy Wastewater, antibiotic waste water, petrochemical wastewater, sugar production wastewater etc.; In use, target microorganism flora growth, in biofilm carrier filling surface and inside, forms microbial film to this reactor.
The application of this Airlift circulating fixed biofilm reactor:
Application example 1:
The biochemical secondary water outlet chemical oxygen demand of Waste water treatment factory is 120 ~ 150mg/L, and ammonia nitrogen is 15 ~ 20mg/L.Biochemical secondary goes out water and air by entering housing by the water-in of guide shell bottom and inlet mouth, by inlet distribution device and air distribution pipe respectively to entering water and air redistribution.Enter gas injection in this reactor to guide shell center, due to the eject momentum of fluid and the buoyancy of bubble self, force guide shell center inner fluid upwards, guide shell outer fluid does well-regulated circulating downwards, result in the density difference inside and outside guide shell center, form vertical internal recycle.Be filled with biofilm carrier filler in biofilm reactor, in the present embodiment, biofilm carrier filler is high molecule plastic porous web, and biofilm carrier filler described in the utility model can be commercially.Guide shell top press-fits homogeneity biofilm carrier filler, for bubble cutting backflow.Microorganism colonization is in biofilm carrier filling surface and inside.Biofilm carrier filler is covered with microbial film, and sewage extensively contacts with microbial film, on microbial film microorganism metabolic effect under, dirty organic pollutants is removed, and sewage is purified.Hydraulic detention time is 1 ~ 1.5 hour, and housing tip is equipped with tripping device, and the water through secondary filtration flows out via overflow weir, and the COD in water outlet is less than 20mg/L, and NH4-N is less than 0.7mg/L, and mud is discharged from sewage draining exit.
Application example 2:
Municipal sewage plant's biochemical secondary water outlet chemical oxygen demand COD is 190 ~ 260mg/L, NH4-N is 15 ~ 20mg/L.Biochemical secondary goes out water and air and enters in housing by guide shell bottom, is redistributed respectively by inlet distribution device and air distribution pipe to entering water and air.Enter gas injection in this reactor to guide shell center, due to the eject momentum of fluid and the buoyancy of bubble self, force guide shell center inner fluid upwards, guide shell outer fluid does well-regulated circulating downwards, result in the density difference inside and outside guide shell center, form vertical internal recycle.Be filled with biofilm carrier filler in biofilm reactor, in the present embodiment, biofilm carrier filler is post dress activated carbon, and biofilm carrier filler described in the utility model can be commercially.Guide shell top press-fits homogeneity biofilm carrier filler, for bubble cutting backflow.Microorganism colonization is in biofilm carrier filling surface and inside.Biofilm carrier filler is covered with microbial film, and sewage extensively contacts with microbial film, on microbial film microorganism metabolic effect under, dirty organic pollutants is removed, and sewage is purified.Hydraulic detention time is 1 ~ 1.5 hour, housing tip is equipped with tripping device, and the water through secondary filtration flows out via the overflow weir at biofilm reactor top, and the COD in water outlet is less than 10mg/L, NH4-N is less than 0.5mg/L, and mud is discharged from the sewage draining exit of described bottom.
Claims (5)
1. an Airlift circulating fixed biofilm reactor, it is characterized in that: described reactor comprises housing, water-in, inlet mouth, guide shell, high strength supports filtering net, inlet distribution device, air distribution pipe, sewage draining exit, tripping device, overflow weir and biofilm carrier filler, described housing is the cylindrical body of hollow, biofilm carrier filler is filled with in this housing, the bottom of this housing is coaxially shaped with at the bottom of conically shaped, bottom at the bottom of this conically shaped arranges sewage draining exit, the top of this housing arranges tripping device, described overflow weir coaxial package is outer and be connected with tripping device and arrange in housing,
Described housing bottom side arranges water-in and inlet mouth, housing above at the bottom of described conically shaped is provided with the inlet distribution device and air distribution pipe that arrange in the horizontal direction, described inlet distribution device is connected with water-in and arranges, and described air distribution pipe is connected with inlet mouth and arranges;
High strength is set in the housing above described air distribution pipe in the horizontal direction and supports filtering net, in the housing that described high strength supports plane on filtering net, along the circumferential direction uniform interval arranges the guide shell vertically arranged of more than three or three, air distribution pipe below each guide shell axis all vertically arranges a gas injection tube, this gas injection tube is used for the axis place jet flow stream to each guide shell corresponding thereto, and gap in each guide shell and each other is all filled with biofilm carrier filler;
Described guide shell and tripping device are that interval is arranged.
2. Airlift circulating fixed biofilm reactor according to claim 1, is characterized in that: the clearance control of each guide shell is 1/5 of draft tube diameter; Each guide shell aspect ratio is 5, and housing inner draft tube cross-sectional area and circulating-area cross-sectional area are than being 1:1.
3. Airlift circulating fixed biofilm reactor according to claim 1, is characterized in that: described biofilm carrier filler is macromolecular material porous web, columnar activated carbon or porous ceramics.
4. Airlift circulating fixed biofilm reactor according to claim 3, is characterized in that: macromolecular material porous web is PVC porous screen cloth.
5. the Airlift circulating fixed biofilm reactor according to any one of Claims 1-4, is characterized in that: described housing is right cylinder, and top and bottom are plane, and the aspect ratio of housing is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603147.XU CN205023938U (en) | 2015-08-11 | 2015-08-11 | Gas lift formula circulation immoblilization biofilm reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520603147.XU CN205023938U (en) | 2015-08-11 | 2015-08-11 | Gas lift formula circulation immoblilization biofilm reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205023938U true CN205023938U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520603147.XU Expired - Fee Related CN205023938U (en) | 2015-08-11 | 2015-08-11 | Gas lift formula circulation immoblilization biofilm reactor |
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| Country | Link |
|---|---|
| CN (1) | CN205023938U (en) |
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2015
- 2015-08-11 CN CN201520603147.XU patent/CN205023938U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20190811 |