CN105884017A - Shallow aeration biological filter basin - Google Patents
Shallow aeration biological filter basin Download PDFInfo
- Publication number
- CN105884017A CN105884017A CN201610439944.8A CN201610439944A CN105884017A CN 105884017 A CN105884017 A CN 105884017A CN 201610439944 A CN201610439944 A CN 201610439944A CN 105884017 A CN105884017 A CN 105884017A
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- Prior art keywords
- water
- nano
- material layer
- filter material
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Classifications
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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
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a shallow aeration biological filter basin which comprises a basin. The basin is sequentially provided with a perforated water distribution plate, a supporting layer and a filter material layer from bottom to top, so that the basin is divided into a water distribution zone and a clear water zone, the water distribution zone is positioned below the water distribution plate, and the clear water zone is positioned above the filter material layer; the water distribution zone is communicated with a water inlet pipe; a water outlet groove is formed in the upper portion of the clear water zone; the water outlet groove is communicated with a water outlet pipe; nano-micro-crystal compound filter materials are arranged in the filter material layer; the total height of the basin is 3-4.5 meters; the supporting layer is provided with nano-micro-crystal compound filter materials, and the diameters of the nano-micro-crystal compound filter materials of the supporting layer are larger than the diameters of the nano-micro-crystal compound filter materials of the filter material layer. The shallow aeration biological filter basin has the advantages that the nano-micro-crystal compound filter materials have abundant inherent pores and are reasonable in pore diameter distribution, accordingly, biological membranes are quite firm after being formed and are difficult to damage due to backwash, the biological treatment stability can be guaranteed, the shallow aeration biological filter basin is bravely designed, the construction cost can be greatly reduced, enhancement can be omitted, and energy consumption can be reduced to a great extent.
Description
Technical field
The present invention relates to a kind of biofilter, particularly a kind of Inka aeration biofilter.
Background technology
BAF is the New biological membrane method sewage treatment process that last century, late nineteen eighties grew up America and Europe.
This technique integrates biological oxidation and retains suspended solid, and volumetric loading, hydraulic load are big, and hydraulic detention time is short,
Effluent quality is good, economic operating cost.Along with the continuous deterioration of source quality ammonia nitrogen index, water producing cost is continuously increased, many
Many tap water supplies enterprise faces immense pressure.BAF is used for tap water supply enterprise, will be to solve this
The preferred plan of problem.But existing BAF uses common filtrate, and (specific surface area is 4～7m2/ g),
Be up to state standards the filtration index specified, the height of cell body at least wants 5 meters, and filter material layer at least wants 2～2.5 meters.And
In civil engineering, the height of 4.5 meters is a threshold, less than 4.5 meters, has only to one block of plate during casting concrete, hence above
4.5 meters, building cost will be greatly increased.Additionally, due to second pond is high 2.5 meters, from second pond, water to be flowed into 5 meters high
Biofilter, need be provided for promote intermediate layer, consume energy very much.
Summary of the invention
It is an object of the invention to provide a kind of construction cost low, the BAF of good filtration effect.
The technical scheme realizing the object of the invention is Inka aeration biofilter, including cell body；Cell body sets the most successively
Put water dispensing board, supporting layer and filter material layer with holes, thus will be separated out the water distributing area being positioned at below water dispensing board between cell body and be positioned at
Clear water zone above filter material layer；Described water distributing area connection water inlet pipe；Top, described clear water zone arranges effluent trough；Described water outlet
Groove connection outlet pipe；Nano-crystallite composite filtering material is placed in described filter material layer；Described cell body total height is 3～4.5 meters；Institute
Stating supporting layer uses diameter to be more than the nano-crystallite composite filtering material of filtrate diameter used by filter material layer.
Described height of filter media layer is 1.2～1.8 meters；Described supporting layer height is 0.2～0.4 meter；Described water distributing area height is
0.8～1.1 meter；Described clear water zone height is 0.5～0.7 meter；Described cell body is provided above the guarantor of 0.3～0.5 meter in clear water zone
Protect district.
Described water dispensing board is corrosion resistant plate, and it offers multiple elongated filter seam, and thickness is 10～20mm.
Described height of filter media layer is 1.2 meters；Described supporting layer height is 0.2 meter；Described water distributing area height is 0.8 meter；Institute
Stating clear water zone height is 0.5 meter；Described protection zone height is 0.3 meter；Described water dispensing board thickness is 10mm.
1.5 meters of described cell body are positioned at subsurface.
Inka aeration biofilter also includes aerator；Described aerator connection supporting layer.
The nano-crystallite composite filtering material specific surface area of described filter material layer and supporting layer is 40～70m2/ g, density is
1050～1100kg/m3；The particle diameter of the nano-crystallite composite filtering material of described filter material layer is 3～5mm；The nanometer of described supporting layer
The particle diameter of crystallite composite filter material is 16～32mm.
Inka aeration biofilter includes backwash water inlet pipe, backwash air inlet and backwash outlet pipe；Described backwash is entered
Water pipe connects water distributing area with backwash air inlet；Described backwash outlet pipe connection effluent trough.
Sealable manhole is set on described water distributing area.
Have employed technique scheme, the present invention has following beneficial effect: the nano microcrystalline that (1) present invention uses is multiple
Closing filtrate inherent porosity to enrich, pore-size distribution is reasonable, therefore the most firm after biofilm formation, is difficult to be subject to because of backwash
Damage, it is ensured that the stability of biological treatment, therefore the present invention courageously devises shallow-layer biofilter, and construction cost drops significantly
Low, without promoting, energy consumption is greatly reduced again.
(2) cobblestone that the supporting layer particle diameter of the present invention is bigger nano-crystallite composite filtering material is traditional, holds except having
Outside torr layer effect, moreover it is possible to cultivate biomembrane, increase filter tank biological treatment capabilities, meanwhile, nano-crystallite composite filtering material weight
Light more than cobblestone, the most further reduce the height of cell body.
(3) present invention integrates absorption, filtering layer retains and biomembrane degradation capability, efficiently removes CODMn, tool
There are the advantages such as Chi Rong little, effluent characteristics are high, flow process is simple, cost of investment is few；Particularly high to ammonia nitrogen removal frank, this
Bright can provide good growing environment for nitrifying bacteria community, make nitrifying bacteria community have stronger biological activity, ammonia nitrogen removal frank up to
78%-95%, CODMn clearance is up to 15%-28%.
(4) due to the fact that filtrate specific surface area is big, the microbial biomass in unit volume is many, therefore filter tank to water quality,
The water yield and variations in temperature have stronger adaptability, are suitable for the sudden water source exceeded standard of water quality；Simultaneously by with the water distribution cracked
Plate directly carries out the mode of water distribution gas distribution and replaces traditional strainer head, and therefore capacity of resisting impact load is strong.
Accompanying drawing explanation
It is clearly understood to make present disclosure be easier to, below according to specific embodiment and combine accompanying drawing, to this
Invention is described in further detail, wherein
Fig. 1 is the structural representation of the present invention.
Accompanying drawing is numbered:
Cell body 1, water distributing area 1-1, clear water zone 1-2, effluent trough 1-3, protection zone 1-4, water dispensing board 2, supporting layer 3,
Filter material layer 4, water inlet pipe 5, outlet pipe 6, aerator 7, backwash water inlet pipe 8, backwash aeration tube 9, recoil
Wash out water pipe 10.
Detailed description of the invention
(embodiment 1)
Seeing Fig. 1, the Inka aeration biofilter of the present embodiment, including cell body 1；Cell body 1 sets gradually band from the bottom up
The water dispensing board 2 in hole, supporting layer 3 and filter material layer 4, be thus separated out, by between cell body 1, the water distributing area being positioned at below water dispensing board 2
1-1 and be positioned at the clear water zone 1-2 above filter material layer 4；Water distributing area 1-1 connects water inlet pipe 5；1-2 top, clear water zone is arranged
Effluent trough 1-3；Effluent trough 1-3 connects outlet pipe 6；Nano-crystallite composite filtering material is placed in filter material layer 3；Cell body 1 height overall
Degree is 3 meters.Water dispensing board 2 is corrosion resistant plate, and it offers multiple elongated filter seam, and thickness is 10～20mm.Filter material layer 3
It is highly 1.2 meters；Supporting layer 3 height is 0.2 meter；Water distributing area 1-1 is highly 0.8 meter；Clear water zone 1-2 is highly 0.5
Rice；Protection zone 1-3 is highly 0.3 meter；Water dispensing board 2 thickness is 10mm.Aerator 7 connects supporting layer 3.Filtrate
The nano-crystallite composite filtering material specific surface area of layer 4 and supporting layer 3 is 40～70m2/ g, density is 1050～1100kg/m3；
The particle diameter of the nano-crystallite composite filtering material of filter material layer 4 is 3～5mm；The particle diameter of the nano-crystallite composite filtering material of supporting layer 3
It is 16～32mm.Backwash water inlet pipe 8 connects water distributing area 1-1 with backwash air inlet 9；Backwash outlet pipe 10 connects
Effluent trough 1-3.Sealable manhole is set on the 1-1 of water distributing area.The total height of cell body 1 is 3 meters, and construction cost is low,
Without carrying out the lifting of water from second pond, directly overboard with pressure reduction, the most energy-conservation, and filter material layer and the thickness of supporting layer
Also it is the best mode through repeatedly calculating checking.
The aerator 7 that the present embodiment uses has that bubble is trickle, is evenly distributed, bubble distribution scope is wide, oxygen-transfer efficiency
The advantage high, energy consumption is low, operational management is easy and maintenance cost is low.
Place nano-crystallite composite filtering material in filter material layer 4, nano-crystallite composite filtering material by multiple microcellular structure natural minerals and
Carbon element component, forms through pelletize, roasting, activation.Its pore diameter range width, specific surface area is big, and material composition is various, has
The functions such as high preferably absorption, filtration and bio-film colonization, specific surface area is big, is 40～70m2/ g, is conventional ceramic grain filter
About 100 times.Concave-convex surface is coarse, and internal capillary connects, and is suitable for each quasi-microorganism and becomes to stablize with internal on its surface
High-activity biological film；And apparent density is moderate, being 1050～1100kg/m3, time properly functioning, filtrate is in filter tank
In suspended state, there is the water loss of flood peak little, the advantage be not easily blocked, hardened；Filtrate utilization rate is high simultaneously, head
Loss increases slowly, and cycle of operation is long, and aquifer yield is big, such that it is able to be substantially reduced the height of cell body.
The cobblestone that the most key is nano-crystallite composite filtering material that supporting layer 3 particle diameter is bigger is traditional, holds except having
Outside torr layer effect, moreover it is possible to cultivate biomembrane, increase filter tank biological treatment capabilities, meanwhile, nano-crystallite composite filtering material weight
Light more than cobblestone, the most further reduce the height of cell body.
During use, filtering velocity is 8～10m/h.Backwashing period be 2 Tianchongs once or according to effluent quality situation depending on,
Concrete backwash step is:
The first step: first gas flushing, makes aging film come off, and the time is about 5min.
Second step: with air-water flushing about 5min.
3rd step: close gas, rinses about 5min with water.
Wherein, gas back washing strength: 15L/ (m2S), water backwashing intensity: 5L/ (m2·s)。
Particular embodiments described above, has been carried out the purpose of the present invention, technical scheme and beneficial effect the most in detail
Illustrate, be it should be understood that the specific embodiment that the foregoing is only the present invention, be not limited to the present invention,
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. done, should be included in this
Within bright protection domain.
Claims (9)
1. Inka aeration biofilter, including cell body (1)；It is characterized in that: cell body (1) sets gradually from the bottom up
Water dispensing board (2), supporting layer (3) and filter material layer (4) with holes, is thus positioned at be separated out between cell body (1) in water dispensing board (2)
The water distributing area (1-1) of lower section and be positioned at the clear water zone (1-2) above filter material layer (4)；Described water distributing area (1-1) connects
Water inlet pipe (5)；Described clear water zone (1-2) top arranges effluent trough (1-3)；Described effluent trough (1-3) connection water outlet
Pipe (6)；Nano-crystallite composite filtering material is placed in described filter material layer (3)；Described cell body (1) total height is 3～4.5 meters；
Described supporting layer (3) uses diameter to be more than the nano-crystallite composite filtering material of filtrate diameter used by filter material layer (3).
Inka aeration biofilter the most according to claim 1, it is characterised in that: described filter material layer (3) is highly
It it is 1.2～1.8 meters；Described supporting layer (3) height is 0.2～0.4 meter；Described water distributing area (1-1) height is 0.8～1.1
Rice；Described clear water zone (1-2) height is 0.5～0.7 meter；Described cell body (1) is provided above 0.3～0.5 at clear water zone (1-2)
The protection zone (1-3) of rice.
Inka aeration biofilter the most according to claim 2, it is characterised in that: described water dispensing board (2) is not
Rust steel plate, it offers multiple elongated filter seam, and thickness is 10～20mm.
Inka aeration biofilter the most according to claim 3, it is characterised in that: described filter material layer (3) is highly
It it is 1.2 meters；Described supporting layer (3) height is 0.2 meter；Described water distributing area (1-1) height is 0.8 meter；Described clear water
District (1-2) height is 0.5 meter；Described protection zone (1-3) height is 0.3 meter；Described water dispensing board (2) thickness is 10mm.
Inka aeration biofilter the most according to claim 4, it is characterised in that: the 1.5 of described cell body (1)
Rice is positioned at subsurface.
Inka aeration biofilter the most according to claim 5, it is characterised in that: also include aerator (7)；
Described aerator (7) connection supporting layer (3).
Inka aeration biofilter the most according to claim 6, it is characterised in that: described filter material layer (4) and holding
The nano-crystallite composite filtering material specific surface area of torr layer (3) is 40～70m2/ g, density is 1050～1100kg/m3；Described
The particle diameter of the nano-crystallite composite filtering material of filter material layer (4) is 3～5mm；The nano microcrystalline of described supporting layer (3) is combined
The particle diameter of filtrate is 16～32mm.
8. according to the Inka aeration biofilter one of claim 1 to 7 Suo Shu, it is characterised in that: also include recoil
Wash water inlet pipe (8), backwash air inlet (9) and backwash outlet pipe (10)；Described backwash water inlet pipe (8) and anti-
Rinse air inlet (9) connection water distributing area (1-1)；Described backwash outlet pipe (5) connection effluent trough (1-3).
Inka aeration biofilter the most according to claim 8, it is characterised in that: on described water distributing area (1-1)
Sealable manhole is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439944.8A CN105884017A (en) | 2016-06-16 | 2016-06-16 | Shallow aeration biological filter basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439944.8A CN105884017A (en) | 2016-06-16 | 2016-06-16 | Shallow aeration biological filter basin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105884017A true CN105884017A (en) | 2016-08-24 |
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ID=56730928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610439944.8A Pending CN105884017A (en) | 2016-06-16 | 2016-06-16 | Shallow aeration biological filter basin |
Country Status (1)
| Country | Link |
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| CN (1) | CN105884017A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622999A (en) * | 2018-07-19 | 2018-10-09 | 安徽华骐环保科技股份有限公司 | The box biological aerated filter of integration |
| CN111547951A (en) * | 2020-05-20 | 2020-08-18 | 芜湖市润山生态农业有限责任公司 | Method for treating wastewater of breeding pigs |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2396312A (en) * | 2002-12-17 | 2004-06-23 | Sev Trent Water Purification L | A biological filter with backwash means |
| KR100729542B1 (en) * | 1998-07-29 | 2007-06-19 | 스미또모 가가꾸 가부시키가이샤 | Alumina sintered body and process for producing the same |
| 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 |
| CN203307111U (en) * | 2013-05-06 | 2013-11-27 | 江苏正本净化节水科技实业有限公司 | Biological aerated filter |
| CN204981318U (en) * | 2015-09-01 | 2016-01-20 | 长沙华时捷环保科技发展有限公司 | Biological aerated filter |
| CN206318766U (en) * | 2016-06-16 | 2017-07-11 | 江苏正本净化节水科技实业有限公司 | Inka aeration biofilter |
-
2016
- 2016-06-16 CN CN201610439944.8A patent/CN105884017A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100729542B1 (en) * | 1998-07-29 | 2007-06-19 | 스미또모 가가꾸 가부시키가이샤 | Alumina sintered body and process for producing the same |
| GB2396312A (en) * | 2002-12-17 | 2004-06-23 | Sev Trent Water Purification L | A biological filter with backwash means |
| CN203307111U (en) * | 2013-05-06 | 2013-11-27 | 江苏正本净化节水科技实业有限公司 | Biological aerated filter |
| 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 |
| CN204981318U (en) * | 2015-09-01 | 2016-01-20 | 长沙华时捷环保科技发展有限公司 | Biological aerated filter |
| CN206318766U (en) * | 2016-06-16 | 2017-07-11 | 江苏正本净化节水科技实业有限公司 | Inka aeration biofilter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108622999A (en) * | 2018-07-19 | 2018-10-09 | 安徽华骐环保科技股份有限公司 | The box biological aerated filter of integration |
| CN111547951A (en) * | 2020-05-20 | 2020-08-18 | 芜湖市润山生态农业有限责任公司 | Method for treating wastewater of breeding pigs |
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Application publication date: 20160824 |
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