CN106277367A - A kind of deep bed denitrification bio-filter - Google Patents
A kind of deep bed denitrification bio-filter Download PDFInfo
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- CN106277367A CN106277367A CN201610894924.XA CN201610894924A CN106277367A CN 106277367 A CN106277367 A CN 106277367A CN 201610894924 A CN201610894924 A CN 201610894924A CN 106277367 A CN106277367 A CN 106277367A
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- Prior art keywords
- filter
- gas distribution
- filter block
- emitting hole
- layer
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- 238000009826 distribution Methods 0.000 claims abstract description 77
- 238000001914 filtration Methods 0.000 claims abstract description 38
- 239000000835 fiber Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 210000005056 cell body Anatomy 0.000 claims abstract description 23
- 239000000706 filtrate Substances 0.000 claims abstract description 16
- 238000010276 construction Methods 0.000 claims description 6
- 239000011449 brick Substances 0.000 claims 1
- 239000007789 gas Substances 0.000 abstract description 49
- 238000000034 method Methods 0.000 abstract description 19
- 239000010865 sewage Substances 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 238000010926 purge Methods 0.000 description 4
- 239000006004 Quartz sand Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- 210000001215 vagina Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a kind of deep bed denitrification bio-filter, including cell body and the fiber filtering layer that is arranged in cell body, filtrate supporting layer and water distribution gas distribution mechanism, water distribution gas distribution mechanism includes distributing channel, two air inlet pipe, many gas distribution pipes, filter block layer and drainage ditch, distributing channel is arranged on the top of cell body, drainage ditch is arranged on the bottom of cell body, fiber filtering layer, filtrate supporting layer and filter block layer are the most setting up and down, two air inlet pipe are symmetricly set on the both sides of filter block layer, it is connected by many gas distribution pipes between two air inlet pipe, multiple qi-emitting hole it is provided with on every gas distribution pipe, fiber filtering layer be arranged above intercept cover plate, it is equiped with web plate between filter block layer and drainage ditch；Quickly, efficiently, beneficially sewage water denitrification, substantially, outlet effect is good, and in backwash process, filtrate does not runs off, and fiber filtering layer is tamed the biomembrane difficult drop-off of formation especially to remove total nitrogen effect in sewage for the process whole filtration, purification process of its filter sewage.
Description
Technical field
The present invention relates to water-treatment technology field, specifically a kind of deep bed denitrification bio-filter.
Background technology
Common denitrification bio-filter is mainly used to remove the ammonia nitrogen in sewage, is mostly held by cell body, filter material layer, filtrate
Torr layer and the composition such as water distribution gas distribution mechanism for backwash, its filter material layer is typically using quartz sand as filler, biological at quartz
In the sand filtration bed of material, growth and breeding form biomembrane, and therefore quartz sand filter media layer is biomembranous carrier, and this biomembrane is at Shui Chu
With waste water during reason, sewage is made to be purified.Existing denitrification bio-filter exists that floor space is relatively big, filtering velocity relatively
Low problem, and quartz sand is as filtrate, not easy to be filmed, additionally, when backwash, easily cause filterins media run-off, abrasion, biology
Film comes off or introduces foreign material in filtration system, and the biological flora tamed can be reduced or be destroyed to biomembranous coming off,
Affect effluent quality and the outlet effect in filter tank eventually.
Summary of the invention
The technical problem to be solved is: for the deficiencies in the prior art, it is provided that a kind of deep bed denitrification is biological
Filter tank, it is quick to the filtration, purification process of sewage, efficient, beneficially sewage water denitrification, especially removes total nitrogen effect in sewage bright
Aobvious, outlet effect is good, and filtrate does not runs off in backwash process, and the biomembrane that fiber filtering layer is tamed formation is difficult to take off
Fall.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of deep bed denitrification bio-filter, including
Cell body and the fiber filtering layer being arranged in described cell body, filtrate supporting layer and water distribution gas distribution mechanism, described water distribution cloth
Mechanism of qi structure includes distributing channel, two air inlet pipe, many gas distribution pipes, filter block layer and drainage ditch, and described distributing channel is arranged on described
The top of cell body, described drainage ditch is arranged on the bottom of described cell body, described fiber filtering layer, filtrate supporting layer and
Filter block layer is the most setting up and down, and two described air inlet pipe are symmetricly set on the both sides of described filter block layer, and described two are entered
It is connected by many described gas distribution pipes between trachea, every described gas distribution pipe is provided with multiple qi-emitting hole, described fibre
That ties up filter material layer is arranged above interception cover plate, is equiped with web plate between described filter block layer and described drainage ditch.
Before the deep bed denitrification bio-filter utilizing the present invention carries out sewage disposal, need first to tame on fiber filtering layer
Forming biomembrane, then carry out sewage disposal, when carrying out sewage disposal, filter process is: sewage enters filter tank, warp by distributing channel
After the filtration of fiber filtering layer, purification, by filter block layer water distribution uniformity, the row of concentration after web plate enters drainage ditch again of the water after purification
Going out, whole filtration, purification process quickly, efficiently, beneficially sewage water denitrification, substantially, imitate especially to remove total nitrogen effect in sewage by water outlet
The best.And backwash process is contrary with above-mentioned filter process, during the backwash of washing, drainage ditch is intake, distributing channel water outlet；Air purge
Backwash time, the air of band pressure qi-emitting hole on gas distribution pipe is discharged, and enters system through the gap between filter block.Instead
In flushing process, filtrate does not runs off, and fiber filtering layer is tamed the biomembrane difficult drop-off of formation.
The fiber filtering layer that this biofilter uses is prone to biofilm and forms biomembrane, and the biomembrane formed is firmly, reliably,
Filtering and difficult drop-off, damage in backwash process；Intercept filterins media run-off when cover plate is used for preventing backwash；Supporting layer is to fibre
Dimension filter material layer plays support and supporting role；Filter block layer plays water distribution uniformity effect, fiber filtering layer and supporting layer is played one simultaneously
Fixed supporting role；Filtrate is played interception function by web plate equally, prevents from filtering and filterins media run-off during backwash, and can prevent anti-
During flushing, foreign material enter filter tank；Gas distribution pipe plays gas distribution effect in filter process, has air purge and washing in backwash process concurrently
Effect.
As preferably, described filter block layer is spliced by polylith filter block, by joinery and its construction phase between adjacent filter block
Even；The bottom of described filter block layer is provided with the groove of some the fovea superiors suitable with many described gas distribution pipes, described
Many gas distribution pipes are located in a plurality of described groove.Filter block layer is spliced through joinery and its construction by polylith filter block, mats formation and ties up
Protect simplicity, different size of filter tank can be flexibly applied to.Groove coordinates with gas distribution pipe, and filter block layer plays preferably positioning work
With, simultaneously facilitate installation and the laying of filter block layer.
As preferably, every piece of described filter block is single foot filter block, and the bottom of every piece of described filter block is narrow end.Compared to biography
Four foot filter blocks of system or multiway filter block, the size of single foot filter block that biofilter of the present invention uses significantly reduces, the face on its top
Long-pending 1/4 size that can be only tradition filter block, the least, therefore when being laid in filter block layer, under same laying area, can
Increase the gap area at least 50% between filter block and filter block, the corresponding gap gross area increased on filter block layer, i.e. increase water distribution cloth
The effective area of gas, thus in backwash process, whether air purge is still washed, water distribution gas distribution evenly, can reduce simultaneously
Dead angle, and increase unit are filter block layer gas output within the unit interval, be conducive to increasing back washing strength and effect.Enter one
Step ground, the top of every piece of described filter block and its bottom rounding off, every described groove is surrounded by the filter block described in polylith.
Every groove is surrounded by polylith list foot filter block, simple in construction, ingenious, can simplify the structure design of filter block, and reduce cost.
As preferably, the top of every piece of described filter block is provided with two tenons and two tongue-and-grooves.The top of every piece of filter block
Two tenons and two tongue-and-grooves are set, visual good, it is simple to realize filter block quick, accurately mat formation, after mating formation, on every piece of filter block
Tenon and tongue-and-groove and the tongue-and-groove on adjacent filter block and tenon coordinate, it is achieved the joinery and its construction between adjacent filter block connects.
As preferably, described fiber filtering layer is piled up by multiple fiber elements and is formed, each described fiber element bag
Include tow knot and the spacing cellosilk tied at described tow.
As preferably, the multiple qi-emitting holes on every described gas distribution pipe are that two rows are arranged, the i.e. first qi-emitting hole row and the
Two qi-emitting hole rows, the first described qi-emitting hole row and the second described qi-emitting hole row are symmetricly set on every described gas distribution pipe
Bottom, described first qi-emitting hole row is constituted by arranging multiple first qi-emitting hole at equal intervals along gas distribution pipe length direction, described
Second qi-emitting hole row is constituted by arranging multiple second qi-emitting hole at equal intervals along gas distribution pipe length direction, two the first adjacent gas distributions
Spacing between the second qi-emitting hole that the spacing between hole is adjacent with two is S, and the first described qi-emitting hole row is with described second
Qi-emitting hole arranges the distance of 1/2 S that staggers before and after the length direction of gas distribution pipe, and the first adjacent qi-emitting hole and the second qi-emitting hole exist
In orthographic projection on gas distribution pipe cross section, angle in the heart is 60～140 °.Multiple first qi-emitting holes straggly and multiple
Two qi-emitting holes can ensure that gas distribution pipe is given vent to anger uniformly, it is ensured that gas distribution effect.Further, the internal diameter of described gas distribution pipe be Φ 40～
60 mm, the aperture of the first described qi-emitting hole and the second described qi-emitting hole is Φ 2～10 mm, in practice it has proved that, this size
Gas distribution pipe and qi-emitting hole can reach preferably uniformly gas distribution effect.
As preferably, described distributing channel is twice, and the distributing channel described in twice is symmetricly set on the upper of described cell body
The both sides in portion, the distributing channel described in per pass is surrounded by the side sidewall of a flap and described cell body, the top of described flap
Being provided with corrugated part, described corrugated part is arranged along the length direction of described flap.Twice distributing channel and the ripple on flap top
Uniform fluid flow when uniform fluid flow when the setting in stricture of vagina portion, beneficially water process enters biofilter or backwash discharges biological filter
Pond.
Compared with prior art, it is an advantage of the current invention that: the deep bed denitrification bio-filter that the present invention provides uses
Fiber filtering layer is prone to biofilm and forms biomembrane, and the biomembrane formed is firmly, reliably, is filtering and is being difficult in backwash process
Come off, damage；Intercept filterins media run-off when cover plate is used for preventing backwash；Fiber filtering layer is played support and supports work by supporting layer
With；Filter block layer plays water distribution uniformity effect, fiber filtering layer and supporting layer is played certain supporting role simultaneously；Web plate is the most right
Filtrate plays interception function, prevents from filtering and filterins media run-off during backwash, and when can prevent backwash, foreign material enter filter tank；Gas distribution
Pipe plays gas distribution effect in filter process, has air purge and washing effect in backwash process concurrently；This biofilter filter sewage
Process be: sewage enters filter tank by distributing channel, after filtering through fiber filtering layer, purifying, by filter block layer water distribution uniformity, purifies
After water concentrate after web plate enters drainage ditch again and discharge, whole filtration, purification process quickly, efficiently, beneficially sewage water denitrification, especially
It is that in removal sewage, total nitrogen effect is obvious, and outlet effect is good, and backwash process is contrary with above-mentioned filter process, sends out and rinses
Time, drainage ditch water inlet, distributing channel water outlet, in backwash process, filtrate does not runs off, and fiber filtering layer is tamed the biology of formation
Film difficult drop-off.
Accompanying drawing explanation
Fig. 1 is the structural representation of the deep bed denitrification bio-filter of embodiment 1；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the outside drawing of filter block layer in embodiment 2；
Fig. 4 is the front view of filter block layer in embodiment 2；
Fig. 5 is the outside drawing of single foot filter block in embodiment 2；
Fig. 6 is the outside drawing of a bit of gas distribution pipe in embodiment 3；
Fig. 7 is the first qi-emitting hole adjacent in embodiment 3 and second qi-emitting hole orthographic projection enlarged drawing on gas distribution pipe cross section.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The deep bed denitrification bio-filter of embodiment 1, as depicted in figs. 1 and 2, including cell body 1 and be arranged in cell body 1
Fiber filtering layer 2, filtrate supporting layer 3 and water distribution gas distribution mechanism, fiber filtering layer 2 is by multiple fiber element (not shown)s
Accumulation forms, and each fiber element includes tow knot and the spacing cellosilk tied at tow；Water distribution gas distribution mechanism includes water distribution
4, two air inlet pipe 51 of canal, many gas distribution pipes 5, filter block layer 6 and drainage ditch 7, distributing channel 4 is arranged on the top of cell body 1, distributing channel
4 is twice, and twice distributing channel 4 is symmetricly set on the both sides on the top of cell body 1, and per pass distributing channel 4 is by a flap 41 and cell body 1
Side sidewall surrounds, and the top of flap 41 is provided with corrugated part 42, and corrugated part 42 is arranged along the length direction of flap 41, drainage ditch
7 bottoms being arranged on cell body 1, fiber filtering layer 2, filtrate supporting layer 3 and filter block layer 6 are the most setting up and down, two air inlet pipe 51
It is symmetricly set on the both sides of filter block layer 6, is connected by many gas distribution pipes 5 between two air inlet pipe 51, every gas distribution pipe 5 is arranged
Have multiple qi-emitting hole, fiber filtering layer 2 be arranged above intercept cover plate 8, filter block layer 6 is spliced by polylith filter block 61, phase
Being connected by joinery and its construction between adjacent filter block 61, the bottom of filter block layer 6 is provided with some suitable with many gas distribution pipes 5
The groove 62 of fovea superior, many gas distribution pipes 5 are located in a plurality of groove 62, are equiped with web plate 9 between filter block layer 6 and drainage ditch 7.
The deep bed denitrification bio-filter of embodiment 2, with the basic phase of structure of the deep bed denitrification bio-filter of embodiment 1
With, difference is in embodiment 2, and every piece of filter block 61 is single foot filter block, and the bottom of every piece of filter block 61 is narrow end, every piece of filter block
The top of 61 is provided with two tenons 63 and two tongue-and-grooves 64, the top of every piece of filter block 61 and its bottom rounding off, and every recessed
Groove 62 is surrounded by polylith filter block 61.In embodiment 2, filter block layer is as shown in Figure 3 and Figure 4, and single foot filter block is as shown in Figure 5.
The deep bed denitrification bio-filter of embodiment 3, with the basic phase of structure of the deep bed denitrification bio-filter of embodiment 1
With, difference is in embodiment 3, and as shown in Figure 6, the multiple qi-emitting holes on every gas distribution pipe 5 are that two rows are arranged, i.e. first
Qi-emitting hole row and the second qi-emitting hole row, the first qi-emitting hole row is symmetricly set on the bottom of every gas distribution pipe 5 with the second qi-emitting hole row,
First qi-emitting hole row is constituted by arranging multiple first qi-emitting hole 52 at equal intervals along gas distribution pipe 5 length direction, the second qi-emitting hole row by
Arrange multiple second qi-emitting hole 53 at equal intervals along gas distribution pipe 5 length direction to constitute, between two the first adjacent qi-emitting holes 52 between
Spacing away between second qi-emitting hole 53 adjacent with two is S, and the first qi-emitting hole row arranges along gas distribution pipe 5 with the second qi-emitting hole
Stagger before and after length direction the distance of 1/2 S, and the first adjacent qi-emitting hole 52 and the second qi-emitting hole 53 are on gas distribution pipe 5 cross section
Orthographic projection in angle in the heart be 120 °, as shown in Figure 7.
In embodiment 3, the internal diameter of gas distribution pipe 5 can be Φ 40～60 mm, the first qi-emitting hole and the aperture of the second qi-emitting hole
Can be Φ 2～10 mm.
In embodiment 1, filter block used is multiway filter block, and in embodiment 2, filter block used is single foot filter block.In actual applications,
The filter block with other structures and shape can also be selected.
Claims (9)
1. a deep bed denitrification bio-filter, the fiber filtering layer including cell body and being arranged in described cell body, filtrate
Supporting layer and water distribution gas distribution mechanism, it is characterised in that: described water distribution gas distribution mechanism include distributing channel, two air inlet pipe, many
Gas distribution pipe, filter block layer and drainage ditch, described distributing channel is arranged on the top of described cell body, and described drainage ditch is arranged on institute
The bottom of the cell body stated, described fiber filtering layer, filtrate supporting layer and filter block layer are the most setting up and down, two described air inlets
Pipe is symmetricly set on the both sides of described filter block layer, is connected by many described gas distribution pipes between two described air inlet pipe,
Be provided with multiple qi-emitting hole on every described gas distribution pipe, described fiber filtering layer be arranged above intercept cover plate, described
Filter block layer and described drainage ditch between be equiped with web plate.
One the most according to claim 1 deep bed denitrification bio-filter, it is characterised in that: described filter block layer is by polylith
Filter block is spliced, and is connected by joinery and its construction between adjacent filter block；The bottom of described filter block layer is provided with described
The groove of some the fovea superiors that many gas distribution pipes are suitable, many described gas distribution pipes are located in a plurality of described groove.
One the most according to claim 2 deep bed denitrification bio-filter, it is characterised in that: every piece of described filter block is single
Foot filter block, the bottom of every piece of described filter block is narrow end.
One the most according to claim 3 deep bed denitrification bio-filter, it is characterised in that: the top of every piece of described filter block
End and its bottom rounding off, every described groove is surrounded by the filter block described in polylith.
5. according to a kind of deep bed denitrification bio-filter described in Claims 2 or 3 or 4, it is characterised in that: every piece of described filter
The top of brick is provided with two tenons and two tongue-and-grooves.
One the most according to claim 1 deep bed denitrification bio-filter, it is characterised in that: described fiber filtering layer by
Multiple fiber elements are piled up and are formed, and each described fiber element includes tow knot and the spacing fiber tied at described tow
Silk.
One the most according to claim 1 deep bed denitrification bio-filter, it is characterised in that: on every described gas distribution pipe
Multiple qi-emitting holes be that two rows are arranged, the i.e. first qi-emitting hole row and the second qi-emitting hole row, described first qi-emitting hole row and described
The second qi-emitting hole row be symmetricly set on the bottom of every described gas distribution pipe, the first described qi-emitting hole is arranged by along gas distribution pipe range
Degree direction arranges multiple first qi-emitting hole at equal intervals and constitutes, and the second described qi-emitting hole is arranged by along gas distribution pipe length direction at equal intervals
Arrange multiple second qi-emitting hole to constitute, between the second qi-emitting hole that spacing between two the first adjacent qi-emitting holes is adjacent with two
Spacing is S, and the first described qi-emitting hole row and the second described qi-emitting hole row are along staggering 1/2 before and after the length direction of gas distribution pipe
In the distance of S, the first adjacent qi-emitting hole and the orthographic projection on gas distribution pipe cross section of second qi-emitting hole, angle in the heart is
60～140 °.
One the most according to claim 7 deep bed denitrification bio-filter, it is characterised in that: the internal diameter of described gas distribution pipe
For Φ 40～60 mm, the aperture of the first described qi-emitting hole and the second described qi-emitting hole is Φ 2～10 mm.
One the most according to claim 1 deep bed denitrification bio-filter, it is characterised in that: described distributing channel is two
Road, the distributing channel described in twice is symmetricly set on the both sides on the top of described cell body, and the distributing channel described in per pass is by a flap
Surrounding with the side sidewall of described cell body, the top of described flap is provided with corrugated part, and described corrugated part is along described
The length direction of flap is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610894924.XA CN106277367A (en) | 2016-10-14 | 2016-10-14 | A kind of deep bed denitrification bio-filter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610894924.XA CN106277367A (en) | 2016-10-14 | 2016-10-14 | A kind of deep bed denitrification bio-filter |
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| CN106277367A true CN106277367A (en) | 2017-01-04 |
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| CN201610894924.XA Pending CN106277367A (en) | 2016-10-14 | 2016-10-14 | A kind of deep bed denitrification bio-filter |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231422A (en) * | 2018-08-30 | 2019-01-18 | 广东卓信环境科技股份有限公司 | A kind of filter block and filter block layer construction method |
| CN110563133A (en) * | 2019-09-09 | 2019-12-13 | 宜兴博渝环保设备有限公司 | TAF biological filter and T-shaped air-water distribution block filter brick water and air distribution system thereof |
| CN111170446A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | High-filter-material-layer biological aerated filter convenient to transport |
| CN111170459A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | Biological filter with nitrification and denitrification functions |
| CN111957081A (en) * | 2020-07-24 | 2020-11-20 | 首创爱华(天津)市政环境工程有限公司 | Water distribution system of filter tank |
| CN118495698A (en) * | 2024-07-09 | 2024-08-16 | 三强环保集团有限公司 | Denitrification deep bed filter tank |
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| CN109231422A (en) * | 2018-08-30 | 2019-01-18 | 广东卓信环境科技股份有限公司 | A kind of filter block and filter block layer construction method |
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| CN111170446A (en) * | 2020-02-28 | 2020-05-19 | 苏州市苏创环境科技发展有限公司 | High-filter-material-layer biological aerated filter convenient to transport |
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| CN111957081A (en) * | 2020-07-24 | 2020-11-20 | 首创爱华(天津)市政环境工程有限公司 | Water distribution system of filter tank |
| CN118495698A (en) * | 2024-07-09 | 2024-08-16 | 三强环保集团有限公司 | Denitrification deep bed filter tank |
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