CN201424400Y - Upward flow reverse grain aerated bacteria filter on deep bed - Google Patents
Upward flow reverse grain aerated bacteria filter on deep bed Download PDFInfo
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- CN201424400Y CN201424400Y CN2009200866070U CN200920086607U CN201424400Y CN 201424400 Y CN201424400 Y CN 201424400Y CN 2009200866070 U CN2009200866070 U CN 2009200866070U CN 200920086607 U CN200920086607 U CN 200920086607U CN 201424400 Y CN201424400 Y CN 201424400Y
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- Prior art keywords
- bacteria filter
- filter
- layer
- aerated
- gravel
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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
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- Biological Treatment Of Waste Water (AREA)
Abstract
An upward flow reverse grain aerated bacteria filter on a deep bed comprises a bacteria filter (1). A plurality of filter material layers (2) is disposed in the bacteria filter (1), wherein the graindiameter of the filter material gradually decreases from bottom to up. A water inlet (3) is disposed on the lower part of the bacteria filter (1). The utility model has the advantages that the upwardflow reverse grain aerated bacteria filter can furthest decrease the influence of the original high water turbidity on the running period of the aerated bacteria filter, specially can prolong the filter period when the turbidity is over 100NTU in a short time because the water resource is a river channel, for the purpose of avoiding frequent backwash when the turbidity is high and decreasing the cost of operation, management and construction investment. A quartz sand layer can prevent porcelain granule from mixing with gravel. A gravel bacteria filter layer can perform bacteria filter and canfunction as a cushion layer. Compared with the porcelain granule with a same grain diameter, gravel and quartz sand can be cleaned easily. Under the condition of a limiting construction land, the utility model is beneficial to the engineering construction.
Description
Technical field
The utility model relates to the Biological Pretreatment technical field in the water treatment, the anti-granularity BAF of a kind of specifically dark bed upward flow.
Background technology
Biological Pretreatment is meant before conventional water-purifying process sets up biological treatment, by the metabolic activity of microbial population inorganic pollutants such as organic pollutant in the water and ammonia nitrogen, nitrite and iron, manganese are carried out rough purification, improve the coagulation performance of water, alleviate the pollution load of processed conventionally follow-up advanced treatment, prolong the work period of materialization treatment process such as filtration or charcoal absorption, maximum possible performance water technology mass action, with this reduction expense, control is polluted, and ensures water quality.
Seat of honour BAF was gone into operation in France in 1981 in the world, was used widely in European various countries subsequently.American States such as the U.S. and Canada introduce this technology in late 1980s, and Japan, Korea S and TaiWan, China have also successively been introduced this technology.In the inland of China, BAF is in the popularization stage.
Filtrate affects the development of BAF as the core integral part of BAF.3 kinds of different forms: BIOCARBONE appearred in the BAF evolution successively, BIOFOR and BIOSTYR, and the filler of employing has nothing in common with each other.What BIOCARBONE adopted is quartzy sand grains; What BIOFOR adopted is light ceramic; What BIOSTYR adopted then is the density polystyrene spherical particle littler than water.
Filtrate in above-mentioned three kinds of BAF all is single particulate material, many to raw water turbidity height, impurity like this water filtration weak effects, and filtration cycle is short, and it is also higher to build the filter tank expense simultaneously.
The utility model content
The purpose of this utility model be design a kind of filtration cycle is long with multiple, multilayer filtrate, the filtration efficiency height, recoil is easy to the dark anti-granularity BAF of upward flow.
The anti-granularity BAF of the utility model dark bed upward flow comprises: filtering basin body 1, multilayer filter material layer 2 is housed in the filtering basin body 1, the particle diameter of filtrate from top to bottom from large to small, filtering basin body 1 lower bottom part is established water-in 3.
Filter material layer 2 orlops are that density is 2.6g/cm
3Gravel bed 4, the superiors are that density is 2g/cm
3Haydite layer 6,7, be 2.6g/cm for density between gravel bed 4 and the haydite layer 6,7
3 Quartz sand layer 5.
Filter material layer 2 particle diameters are from top to bottom:
Haydite layer 7: particle diameter 2～5mm, the effect of mainly playing bio-oxidation and holding back pollutent;
Haydite layer 6: particle diameter 5～8mm, the effect of mainly playing bio-oxidation and holding back pollutent;
Quartz sand layer 5: particle diameter 5～8mm, biofiltration and prevent gravel and the upper strata haydite mixes layer;
Gravel bed 4: particle diameter 8～16mm, play further water distribution uniformity gas distribution and hold back high turbidity suspended substance and biofiltration effect.
The biofilter material total thickness is 3～5m, is decided by filtering basin body 1 bottom surface size, raw water turbidity, is not limited to above thickness.
The utility model adopts upward flow, and according to water (flow) direction, being set to from large to small of particle diameter of filter medium is that anti-granularity is filtered.
The utility model with spherical light ceramic as aerating biological filter pool filler, although (under 6.5～8m/h), its water quality treatment is still very high, and aeration rate is little, the coefficient of oxygen utilization height in very high filtering velocity; In addition, this BAF system head loss increases slowly, and filtration cycle is long, has saved the energy and process cost.
The advantage of the anti-granularity BAF of the utility model dark bed upward flow is: the anti-granularity BAF of upward flow form, can overcome of the influence of raw water turbidity height to greatest extent to the BAF cycle of operation, especially the water source surpasses the situation of 100NTU for river course short-term possibility turbidity, prolong filtration cycle, avoid the frequent shortcoming of back flushing when turbidity is higher, reduce operational and administrative expenses and construction investment; The quartz sand layer of shop one deck same particle size can prevent that haydite and gravel from mixing under the haydite layer; The gravel biofilter material layer of undermost particle diameter 8～16mm, thickness 800mm plays the effect of biofiltration and bed course simultaneously; The quartz sand of the gravel of particle diameter 8～16mm and particle diameter 5～8mm is compared with the haydite of same particle size, and gravel and quartz sand are easy to rinse well; Under the limited condition of construction land, adopt the utility model favourable to engineering construction.
Description of drawings
Fig. 1 is the structural representation of the anti-granularity BAF of dark bed upward flow.
Embodiment
Embodiment one
According to shown in Figure 1, the anti-granularity BAF of a kind of dark bed upward flow comprises: filtering basin body 1, multilayer filter material layer 2 is housed in the filtering basin body 1, the particle diameter of filtrate from top to bottom from large to small, filtering basin body 1 lower bottom part is established water-in 3.
Filter material layer 2 orlops are that density is 2.6g/cm
3Gravel bed 4, the superiors are that density is 2g/cm
3Haydite layer 6,7, be 2.6g/cm for density between gravel bed 4 and the haydite layer 6,7
3 Quartz sand layer 5.
Filter material layer 2 particle diameters and thickness are from top to bottom:
Haydite layer 7: particle diameter 2～5mm thickness 2000mm
Haydite layer 6: particle diameter 5～8mm thickness 1500mm
Quartz sand layer 5: particle diameter 5～8mm thickness 100mm
Gravel bed 4: particle diameter 8～16mm thickness 900mm.
Embodiment two
According to shown in Figure 1, the anti-granularity BAF of a kind of dark bed upward flow comprises: filtering basin body 1, multilayer filter material layer 2 is housed in the filtering basin body 1, the particle diameter of filtrate from top to bottom from large to small, filtering basin body 1 lower bottom part is established water-in 13.
Filter material layer 2 orlops are that density is 2.6g/cm
3Gravel bed 4, the superiors are that density is 2g/cm
3Haydite layer 6,7, be 2.6g/cm for density between gravel bed 4 and the haydite layer 6,7
3 Quartz sand layer 5.
Filter material layer 2 particle diameters and thickness are from top to bottom:
Haydite layer 7: particle diameter 2～5mm thickness 1800mm
Haydite layer 6: particle diameter 5～8mm thickness 1200mm
Quartz sand layer 5: particle diameter 5～8mm thickness 100mm
Gravel bed 4: particle diameter 8～16mm thickness 900mm.
The utility model is not limited to above embodiment, can implement a plurality of embodiment according to the particular cases such as height of engineering construction land area size, raw water turbidity.
Claims (3)
1, the anti-granularity BAF of a kind of dark bed upward flow, comprising: filtering basin body (1) is characterized in that: multilayer filter material layer (2) is housed in the filtering basin body (1), the particle diameter of filtrate from top to bottom from large to small, filtering basin body (1) lower bottom part is established water-in (3).
2, the anti-granularity BAF of dark bed upward flow according to claim 1, it is characterized in that: filter material layer (2) orlop is that density is 2.6g/cm
3Gravel bed (4), the superiors are that density is 2g/cm
3Haydite layer (6), (7), be 2.6g/cm for density between gravel bed (4) and haydite layer (6), (7)
3Quartz sand layer (5).
3, the anti-granularity BAF of dark bed upward flow according to claim 1, it is characterized in that: filter material layer (2) particle diameter is from top to bottom:
Haydite layer (7): particle diameter 2～5mm
Haydite layer (6): particle diameter 5～8mm
Quartz sand layer (5): particle diameter 5～8mm
Gravel bed (4): particle diameter 8～16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200866070U CN201424400Y (en) | 2009-06-15 | 2009-06-15 | Upward flow reverse grain aerated bacteria filter on deep bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200866070U CN201424400Y (en) | 2009-06-15 | 2009-06-15 | Upward flow reverse grain aerated bacteria filter on deep bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201424400Y true CN201424400Y (en) | 2010-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200866070U Expired - Lifetime CN201424400Y (en) | 2009-06-15 | 2009-06-15 | Upward flow reverse grain aerated bacteria filter on deep bed |
Country Status (1)
| Country | Link |
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| CN (1) | CN201424400Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010096A (en) * | 2010-10-11 | 2011-04-13 | 山东大学 | Three-dimensional graded aerated biological filter |
| CN102276052A (en) * | 2011-06-01 | 2011-12-14 | 董文艺 | Backwashing apparatus and method for aeration biofilter with lightweight filter material |
| CN102745863A (en) * | 2012-07-04 | 2012-10-24 | 哈尔滨工业大学 | High efficiency fluidization upward flow multilayer composite filter material biological filter tank coupled with ozonation and water treatment method thereof |
| CN103848496A (en) * | 2014-02-18 | 2014-06-11 | 中持（北京）水务运营有限公司 | Biological aerated filter adopting combined packing way |
| CN104863082A (en) * | 2015-05-11 | 2015-08-26 | 珠江水利委员会珠江水利科学研究院 | Artificial lagoon filtering system |
| CN107487837A (en) * | 2017-09-27 | 2017-12-19 | 苏州苏湘特种水产养殖场 | A kind of filler of breeding wastewater BAF |
-
2009
- 2009-06-15 CN CN2009200866070U patent/CN201424400Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010096A (en) * | 2010-10-11 | 2011-04-13 | 山东大学 | Three-dimensional graded aerated biological filter |
| CN102276052A (en) * | 2011-06-01 | 2011-12-14 | 董文艺 | Backwashing apparatus and method for aeration biofilter with lightweight filter material |
| CN102745863A (en) * | 2012-07-04 | 2012-10-24 | 哈尔滨工业大学 | High efficiency fluidization upward flow multilayer composite filter material biological filter tank coupled with ozonation and water treatment method thereof |
| CN103848496A (en) * | 2014-02-18 | 2014-06-11 | 中持（北京）水务运营有限公司 | Biological aerated filter adopting combined packing way |
| CN104863082A (en) * | 2015-05-11 | 2015-08-26 | 珠江水利委员会珠江水利科学研究院 | Artificial lagoon filtering system |
| CN107487837A (en) * | 2017-09-27 | 2017-12-19 | 苏州苏湘特种水产养殖场 | A kind of filler of breeding wastewater BAF |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100317 |
|
| CX01 | Expiry of patent term |