CN203346156U - Adjustable aeration biological filter - Google Patents
Adjustable aeration biological filter Download PDFInfo
- Publication number
- CN203346156U CN203346156U CN2013204022585U CN201320402258U CN203346156U CN 203346156 U CN203346156 U CN 203346156U CN 2013204022585 U CN2013204022585 U CN 2013204022585U CN 201320402258 U CN201320402258 U CN 201320402258U CN 203346156 U CN203346156 U CN 203346156U
- Authority
- CN
- China
- Prior art keywords
- filter
- water
- material layer
- adjustable
- filter material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Classifications
-
- 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
Landscapes
- Biological Treatment Of Waste Water (AREA)
Abstract
The utility model discloses an adjustable aeration biological filter which comprises a filter body, wherein the filter body is sequentially provided with a precise filter plate, a filter material layer and a filter material layer adjusting control plate from bottom to top, thereby dividing the filter body into a water distribution region positioned below the precise filter plate and a clear water region positioned above the filter material layer adjusting control plate; the water distribution region is communicated with a water inlet pipe; the upper part of the clear water region is provided with a water outlet groove; the water outlet groove is communicated with a water outlet pipe; and a nano microcrystal composite filter material is arranged in the filter material layer. The height of the filter material layer is controlled and adjusted by the filter material layer adjusting control plate, so that the height of the reaction region can be adjusted according to the variance of influent water ammonia nitrogen, thereby ensuring the adjustable aeration biological filter to have stable influent water quality.
Description
Technical field
The utility model relates to a kind of biological filter, particularly a kind of adjustable BAF.
Background technology
BAF is the New biological membrane method sewage treatment process that last century, late nineteen eighties grew up the America and Europe.This technique integrates bio-oxidation and holds back suspended solids, and volumetric loading, hydraulic load are large, and hydraulic detention time is short, and effluent quality is good, economic operating cost.Along with the continuous deterioration of source quality ammonia nitrogen index, water producing cost constantly increases, and numerous tap water supply enterprise faces immense pressure.By BAF, for tap water supply enterprise, will be the preferred plan addressed this problem.But also there are a lot of defects in existing BAF, requires further improvement.
The utility model content
The purpose of this utility model is to provide that a kind of filter effect is better, the more stable a kind of adjustable BAF of effluent quality.
The technical scheme that realizes the utility model purpose is a kind of adjustable BAF, comprises the pond body; The pond body sets gradually accurate filter plate, filter material layer and filter material layer regulation control plate from the bottom up, will be separated out the water distributing area that is positioned at accurate filter plate below and the clear water zone that is positioned at filter material layer regulation control plate top between the body of pond thus; Described water distributing area is communicated with water inlet pipe; Described clear water zone top sets out tank; Described effluent trough is communicated with rising pipe; Place nano-crystallite composite filtering material in described filter material layer.
A plurality of elongated filter seams are set on described accurate filter plate; Described elongated filter seam width is 1-3mm.
Described accurate filter plate is spliced by polylith standard filter plate; Described every standard filter plate is of a size of 1000mm * 1000mm * 100mm; The diagonal lines error of described every standard filter plate is ± 2mm that percentage of open area is >=1%.
Aforesaid adjustable BAF also comprises efficient oxygen-increasing aerating apparatus; Described efficient oxygen-increasing aerating apparatus comprises the aerator that is provided with splash head, aeration tube, gas-liquid diffuser, injector and the booster water pump be communicated with successively; Described aerator is arranged in described water distributing area.
The nano-crystallite composite filtering material specific surface area of described filter material layer is 40 ~ 70 m
2/ g; Density is 1050 ~ 1100kg/m
3.
Sealable access opening is set on described water distributing area.
Aforementioned adjustable BAF also comprises back flushing water inlet pipe, back flushing aeration tube and back flushing rising pipe; Described back flushing water inlet pipe and back flushing aeration tube are communicated with water distributing area; Described back flushing rising pipe is communicated with effluent trough.
Adopted technique scheme, the utlity model has following beneficial effect: (1) the utility model adopts the filter material layer regulation control plate to carry out the height of regulating and controlling filter material layer, therefore can, according to the variation conditioned reaction district height of influent ammonia nitrogen, guarantee that thus this adjustable BAF has stable effluent quality.
(2) accurate filter plate of the present utility model it play distribute water and air and carrying filtrate, the mode of with the filter plate that cracks, directly carrying out distribute water and air replaces traditional strainer head and has effectively stoped aquatic shellfish, snail and foreign material to stop up the possibility of water distribution, aerating system.
(3) can because the quality of filter plate fabrication and installation directly has influence on this filter tank, normally move, particularly the planeness of filter plate requires highly, and as too large as error, water distribution while causing moving, distribution are inhomogeneous, affect the treatment effect in filter tank.If water distribution during back flushing, distribution are inhomogeneous, can cause the recoil uniformity coefficient of filter material layer inconsistent, cause filter tank local backwash intensity excessive, make the filter material layer transition wash away or backwash not thorough.The accurate filter plate planeness that the utility model adopts is high, and the filter seam is fine and closely woven, be evenly distributed, and guarantees the homogeneity of distribute water and air; Resistance to compression, wear-resisting, supporting capacity is strong; Elongated filter simultaneously seams meter and higher percentage of open area, makes filter plate have little, the not susceptible to plugging advantage of head loss; Particularly accurate filter plate of the present utility model has adopted modular design, and installation and maintenance are easy.
(3) the utility model has been placed on oxygenating system the water distributing area of filter plate bottom, so cancelled the supporting layer on filter plate top, reduced the filter tank total height, one-time investment is more economized, and simultaneously efficient oxygen-increasing aerating apparatus has advantages of that bubble is trickle, is evenly distributed, the bubble distribution scope is wide, oxygen-transfer efficiency is high, energy consumption is low, operational management is easy and maintenance cost is low.
(4) the nano-crystallite composite filtering material inherent porosity that the utility model adopts is abundant, and pore size distribution is reasonable, so very firm after biofilm formation, difficult impaired because of back flushing, has guaranteed the stability of biological treatment.
(5) the utility model integrates absorption, filtering layer is held back and the microbial film degradation capability, efficiently removes ammonia nitrogen and CODMn, has the advantages such as Chi Rong little, effluent characteristics is high, flow process is simple, cost of investment is few; Particularly high to ammonia nitrogen removal frank, the utility model can provide good growing environment for nitrifying bacteria community, makes nitrifying bacteria community that stronger biological activity be arranged, and ammonia nitrogen removal frank can reach 78%-95%, CODMn clearance can reach 15%-28%.
(6) the utility model is because the filtrate specific surface area is large, and the microbial biomass in unit volume is many, so filter tank has stronger adaptability to water quality, the water yield and temperature variation, the sudden water source exceeded standard of applicable water quality; Replace traditional strainer head by the mode of directly carrying out distribute water and air with the filter plate that cracks, therefore) capacity of resisting impact load is strong simultaneously.
The accompanying drawing explanation
For content of the present utility model more easily is expressly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is structural representation of the present utility model.
The structural representation that Fig. 2 is efficient oxygen-increasing aerating apparatus.
Attached number in the figure is:
Pond body 1, water distributing area 1-1, clear water zone 1-2, effluent trough 1-3, accurate filter plate 2, filter material layer 3, filter material layer regulation control plate 4, water inlet pipe 5, rising pipe 6, efficient oxygen-increasing aerating apparatus 7, aerator 7-1, splash head 7-1-1, aeration tube 7-2, gas-liquid diffuser 7-3, injector 7-4, booster water pump 7-5, back flushing water inlet pipe 8, back flushing aeration tube 9, back flushing rising pipe 10.
Embodiment
(embodiment 1)
See Fig. 1 and Fig. 2, a kind of adjustable BAF of the present embodiment, comprise pond body 1; Pond body 1 sets gradually accurate filter plate 2, filter material layer 3 and filter material layer regulation control plate 4 from the bottom up, thus 1 of pond body is separated out to the water distributing area 1-1 that is positioned at accurate filter plate 2 belows and the clear water zone 1-2 that is positioned at filter material layer regulation control plate 4 tops; Water distributing area 1-1 is communicated with water inlet pipe 5, and sealable access opening is set on water distributing area 1-1.Clear water zone 1-2 top sets out tank 1-3; Effluent trough 1-3 is communicated with rising pipe 6.Back flushing water inlet pipe 8 and back flushing aeration tube 9 are communicated with water distributing area 1-1; Back flushing rising pipe 13 is communicated with effluent trough 1-3.In the scheme of the present embodiment, water distributing area 1-1 height 0.6m, clear water zone 1-2 are highly 0.5m, filter tank protection height 0.5 m above clear water zone 1-2.
Specifically see Fig. 2, efficient oxygen-increasing aerating apparatus 7 comprises the aerator 7-1 that is provided with splash head 7-1-1, aeration tube 7-2, gas-liquid diffuser 7-3, injector 7-4 and the booster water pump 7-5 be communicated with successively; Booster water pump 7-5 connects water source.Aerator 7-1 is arranged in water distributing area 1-1.The efficient oxygen-increasing aerating apparatus 7 that the present embodiment adopts has advantages of that bubble is trickle, is evenly distributed, the bubble distribution scope is wide, oxygen-transfer efficiency is high, energy consumption is low, operational management is easy and maintenance cost is low.
The interior placement nano-crystallite composite filtering material of filter material layer 3, nano-crystallite composite filtering material, by multiple microvoid structure natural mineral and carbon element component, forms through granulation, roasting, activation.Its pore diameter range is wide, and specific surface area is large, and material composition is various, has that height adsorbs preferably, a function such as filtration and bio-film colonization, and specific surface area is large, is 40 ~ 70 m2/g, is 100 times of left and right of conventional ceramic grain filter.Concave-convex surface is coarse, and internal capillary is communicated with, and is applicable to each quasi-microorganism and becomes stable high-activity biological film on its surface with inside; And apparent density is moderate, be 1050 ~ 1100kg/m3, while normally moving, filtrate is suspended state in filter tank, has a water head loss little, is difficult for the advantage of stopping up, hardening; The filtrate utilization ratio is high simultaneously, and head loss increases slowly, and the cycle of operation is long, and water production rate is large.
Accurate filter plate 2 is spliced by polylith standard filter plate; Every standard filter plate is of a size of 1000mm * 1000mm * 100mm; The diagonal lines error of every standard filter plate is ± 2mm that percentage of open area is >=1%; A plurality of elongated filter seams are set on every standard filter plate; Elongated filter seam width is 1-3mm.
During use, filtering velocity is 8 ~ 10m/h.Backwashing period is that 2 Tianchongs once or according to the effluent quality situation are determined, and concrete backwash step is:
The first step: first gas flushing, aging film is come off, the time is the 5min left and right.
Second step: with air-water flushing 5min left and right.
The 3rd step: close gas, water rinses the 5min left and right.
Wherein, gas back washing strength: 15L/ (m
2s), water backwashing intensity: 5L/ (m
2s).
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. adjustable BAF, comprise pond body (1); It is characterized in that: pond body (1) sets gradually accurate filter plate (2), filter material layer (3) and filter material layer regulation control plate (4) from the bottom up, will be separated out the water distributing area (1-1) that is positioned at accurate filter plate (2) below and the clear water zone (1-2) that is positioned at filter material layer regulation control plate (4) top between pond body (1) thus; Described water distributing area (1-1) is communicated with water inlet pipe (5); Described clear water zone (1-2) top sets out tank (1-3); Described effluent trough (1-3) is communicated with rising pipe (6); Place nano-crystallite composite filtering material in described filter material layer (3).
2. adjustable BAF according to claim 1, is characterized in that: a plurality of elongated filter seams are set on described accurate filter plate (2); Described elongated filter seam width is 1-3mm.
3. adjustable BAF according to claim 2, it is characterized in that: described accurate filter plate (2) is spliced by polylith standard filter plate; Described every standard filter plate is of a size of 1000mm * 1000mm * 100mm; The diagonal lines error of described every standard filter plate is ± 2mm that percentage of open area is >=1%.
4. adjustable BAF according to claim 1, is characterized in that: also comprise efficient oxygen-increasing aerating apparatus (7); Described efficient oxygen-increasing aerating apparatus (7) comprises the aerator that is provided with splash head (7-1-1) (7-1), aeration tube (7-2), gas-liquid diffuser (7-3), injector (7-4) and the booster water pump (7-5) be communicated with successively; Described aerator (7-1) is arranged in described water distributing area (1-1).
5. adjustable BAF according to claim 1, it is characterized in that: the nano-crystallite composite filtering material specific surface area of described filter material layer (3) is 40 ~ 70 m
2/ g; Density is 1050 ~ 1100kg/m
3.
6. according to the described adjustable BAF of one of claim 1 to 5, it is characterized in that: on described water distributing area (1-1), sealable access opening is set.
7. adjustable BAF according to claim 6, is characterized in that: also comprise back flushing water inlet pipe (8), back flushing aeration tube (9) and back flushing rising pipe (10); Described back flushing water inlet pipe (8) and back flushing aeration tube (9) are communicated with water distributing area (1-1); Described back flushing rising pipe (13) is communicated with effluent trough (1-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204022585U CN203346156U (en) | 2013-07-05 | 2013-07-05 | Adjustable aeration biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204022585U CN203346156U (en) | 2013-07-05 | 2013-07-05 | Adjustable aeration biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203346156U true CN203346156U (en) | 2013-12-18 |
Family
ID=49746079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204022585U Withdrawn - After Issue CN203346156U (en) | 2013-07-05 | 2013-07-05 | Adjustable aeration biological filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203346156U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318999A (en) * | 2013-07-05 | 2013-09-25 | 江苏正本净化节水科技实业有限公司 | Adjustable biological aerated filter |
| CN111302480A (en) * | 2020-04-02 | 2020-06-19 | 江苏道科环境科技有限公司 | Biological filter body water distribution system |
-
2013
- 2013-07-05 CN CN2013204022585U patent/CN203346156U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103318999A (en) * | 2013-07-05 | 2013-09-25 | 江苏正本净化节水科技实业有限公司 | Adjustable biological aerated filter |
| CN103318999B (en) * | 2013-07-05 | 2014-12-10 | 江苏正本净化节水科技实业有限公司 | Adjustable biological aerated filter |
| CN111302480A (en) * | 2020-04-02 | 2020-06-19 | 江苏道科环境科技有限公司 | Biological filter body water distribution system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2021253409A1 (en) | Efficient denitrification filtering pool system and operating method | |
| CN101708933B (en) | Water treatment device | |
| CN202124518U (en) | Multistage downflow bioaeration filter | |
| CN205294949U (en) | High -efficient bological aerated filter | |
| CN204958517U (en) | Dark bed filtering pond of denitrification of permanent water level and integration of change water level | |
| CN203065226U (en) | Spiral-flow aeration biological filter for treating industrial wastewater | |
| CN103318999B (en) | Adjustable biological aerated filter | |
| CN202688092U (en) | Air and water distribution device of denitrification deep bed filtering tank | |
| CN107162185B (en) | Industrial wastewater denitrification device and process | |
| CN203346156U (en) | Adjustable aeration biological filter | |
| CN105439280A (en) | Efficient biological aerated filter applicable to pretreatment of micro-polluted source water | |
| CN101434435B (en) | Method and apparatus for using aerating biological filter in advanced treatment of dyeing waste water | |
| CN104326627A (en) | Dynamic membrane biogas slurry treatment device and dynamic membrane biogas slurry treatment method | |
| CN201785244U (en) | Biofilter treatment system capable of switching treatment reaction types | |
| CN203820543U (en) | Biological aerated filter | |
| CN104140172A (en) | Seawater desalination pretreatment method | |
| CN201598205U (en) | Water treatment device | |
| CN201648181U (en) | Pre-denitrification aeration biological filter | |
| CN105884017A (en) | Shallow aeration biological filter basin | |
| CN213012446U (en) | MBR sewage treatment plant | |
| CN201317703Y (en) | Biological aerated filter used for printing and dyeing wastewater advanced processing device | |
| CN206318766U (en) | Inka aeration biofilter | |
| CN208776391U (en) | Into two outlet on top and bottom aeration biological filter device in one kind | |
| CN212246397U (en) | Novel denitrification filter device based on organic polymer carrier | |
| CN206033478U (en) | Shallow layer denitrification biological filter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131218 Effective date of abandoning: 20141210 |
|
| RGAV | Abandon patent right to avoid regrant |