CN207537208U - A kind of aeration biochemical filter tank - Google Patents
A kind of aeration biochemical filter tank Download PDFInfo
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- CN207537208U CN207537208U CN201720703716.7U CN201720703716U CN207537208U CN 207537208 U CN207537208 U CN 207537208U CN 201720703716 U CN201720703716 U CN 201720703716U CN 207537208 U CN207537208 U CN 207537208U
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- Prior art keywords
- filter
- material layer
- filter tank
- filter material
- backwash
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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
The utility model is related to technical field of sewage, more particularly to a kind of aeration biochemical filter tank, it including filter tank ontology, the water inlet that is set to filter tank ontology upper end, is set to the first water outlet of filter tank ontology lower end and is set to the intrinsic suspended filter material layer in filter tank and precipitation filter material layer, suspended filter material layer is set to the top of precipitation filter material layer.Since the density of suspended filter material layer filtrate is suitable with sewage density, therefore the filtrate of suspended filter material layer is in suspended state in sewage disposal process, and filtrate is not easy to form hardening layer, and can increase effective contact area of filtrate and sewage, so as to improve filter efficiency；In addition, since the utility model is equipped with two layers of filter material layer, possesses the two-fold advantage of fluid bed and biofilter, improve filter efficiency, and simple in structure, floor space is small, and construction cost is small, easy to use.
Description
Technical field
The utility model is related to a kind of industrial wastewater filter devices, and in particular to a kind of aeration biochemical filter tank.
Background technology
Biological aerated filter is a kind of Novel sewage treatment technology to grow up late 1980s, which uses
The particulate filler of high-specific surface area is as biofilm carrier, and the microbial biomass of unit pond body is more, and processing load is big, effluent quality
It is good, it is subsequently not required to set secondary sedimentation tank, the advantages that floor space is small, therefore, at home and abroad obtained in sewage disposal extensive
Using.
Biological aerated filter can be divided into both up-flow and drop streaming form by water (flow) direction.Up-flow, that is, raw water is under
Filter material layer is flowed into upwardly through filter, since sewage usually contains the aquatic organism of a large amount of impurity or growth, in longtime running
In the case of there is a situation where block to lead to that flow is not smooth, treatment effeciency is low, system can not be run.To prevent from blocking, it is necessary to
Pre-treatment is carried out, this is just added significantly to build and operating cost.Drop streaming biological aerated filter does not have an above problem, but due to
Using little particle haydite filter tank, a large amount of suspended matters, turbidity are retained down general biological aerated filter by upper strata filtrate in operation, are led
Filtrate upper strata is caused to be covered in a short time by mud and form hardening layer, head loss rapid growth will be to filter tank frequency so as to force
It is numerous to be backwashed, operating cost is increased, while affect metabolism period longer nitrifier normal growth, and then affect
To the removal rate of ammonia nitrogen.
The patent of invention that number of patent application is 201010548542.4 discloses a kind of biological aerated filter, it includes catchmenting
Slot, ceramic grain filter, apparatus body, aeration supervisor, aeration branch pipe, aeration air inlet, backwash air inlet, backwash water inlet and
Boring aeration pipe.This biological aerated filter lower part or bottom increase aerating system.According to water (flow) direction, it can be divided into upward flow
With it is lower to stream two kinds.Due to it is lower to stream biological aerated filter receive it is dirty it is inefficient, easy block, the cycle of operation it is short, now
Mostly using upward flow mode (i.e. using air water co-flow), make water distribution, gas distribution more uniform.Meanwhile in aqueous vapor uphill process
The sulphur that bottom retains can be brought into filter tank middle and upper part, increase the pollutant carrying capacity in filter tank, extend the work period.But the equipment
It cannot still solve the problems, such as that longtime running lower outlet easily blocks.
Utility model content
The purpose of this utility model is for above-mentioned deficiency of the prior art, provides a kind of filtrate upper strata and is not easily formed
The high biological aerated filter of hardening layer, filter efficiency.
The purpose of this utility model is achieved through the following technical solutions：
A kind of biological aerated filter for sewage processing including filter tank ontology, the water inlet that is set to filter tank ontology upper end, is set
It is placed in first water outlet of this body sidewall of filter tank and is set to the intrinsic suspended filter material layer in filter tank and precipitation filter material layer, hang
Floating filter material layer is set to the top of precipitation filter material layer.
The utility model is by setting suspended filter material layer and precipitation filter material layer so that filtering possesses fluid bed and biofilter
Two-fold advantage, and simple in structure, floor space is small, and construction cost is small, easy to use.
Further, the filtrate of suspended filter material layer is haydite or fibrous nodules, precipitate the filtrate of filter material layer for haydite, float stone,
One kind in volcanic rock, the filtrate density of the suspended filter material layer is 1.0g/cm3 -2.0g/cm3, the filtrate for precipitating filter material layer is close
It spends for 2.1g/cm3 -2.6g/cm3。
Further, the thickness of suspended filter material layer is 1m-3m, and the thickness for precipitating filter material layer is 0.8m-1.5m.
Further, the first water outlet of filter tank ontology lower end is equipped with the first strainer, and the aperture of the first strainer, which is less than, to sink
The grain size of the filtrate of shallow lake filter material layer.
Further, filter tank ontology is additionally provided with the first backwash water pipe and the second backwash water pipe, the first backwash water pipe
It being set between the suspended filter material layer and precipitation filter material layer, the second backwash water pipe is set to the precipitation filter material layer lower end,
The first backwash water pipe, the second upper surface for backwashing water pipe offer the first aperture.
Further, filter plate, the filter on filter plate and the cobble being set to above filter plate are further included in the ontology of filter tank
Supporting layer, precipitation filter material layer are set to the top of the pebble support layer.
Further, filter tank ontology is additionally provided with backwash tracheae, and backwash tracheae is set to below the filter plate, backwash
The upper surface of tracheae offers second orifice.
Further, backwash discharge outlet is additionally provided on the side wall of filter tank ontology upper end, is additionally provided in the filter tank ontology
The anti-down chute of upper end opening, the second water outlet of the anti-down chute are connected with the backwash discharge outlet, the anti-backflow
The upper end opening of slot is higher than the backwash discharge outlet and less than the water inlet of the filter tank ontology upper end side.
Further, the upper end of anti-down chute is equipped with the second strainer, and the aperture of second strainer is less than suspended filter material layer
The grain size of filtrate.
The beneficial effects of the utility model：The utility model in the ontology of filter tank by setting suspended filter material layer, due to suspending
Filter material layer filtrate density is suitable with sewage, therefore in sewage disposal, and the suspended filter material layer is in suspended state, can increase filter
Material and the contact area of sewage, so as to be effectively increased retention dirt ability, and do not easily lead to filtrate upper strata in a short time by
Mud covers and forms hardening layer, so as to improve filter efficiency；In addition, this biological aerated filter is due to being additionally provided with precipitation filtrate
Layer, improves filter efficiency, and simple in structure, floor space is small, construction cost at the advantages of combining fluid bed and biofilter
It is low, it is easy to use.
Description of the drawings
Utility model is described further using attached drawing 1, but the embodiment in attached drawing 1 is not formed to the utility model
Any restrictions, without creative efforts, can also be according to following attached for those of ordinary skill in the art
Figure obtains other attached drawings.
Fig. 1 is the structure diagram of the utility model.
Reference numeral includes：1- filter tanks ontology；2- water inlets；The first water outlets of 3-；The first strainers of 4-；5- suspended filter materials
Layer；6- precipitates filter material layer；7- first backwashes water pipe；8- second backwashes water pipe；9- filter plates；10- filters；11- cobble supports
Layer；12- backwashes tracheae；13- backwashes discharge outlet；The anti-down chutes of 14-；The second strainers of 15-.
Specific embodiment
The utility model is further described with reference to attached drawing 1 and following embodiment.
Such as Fig. 1, the present embodiment is related to a kind of biological aerated filter for sewage processing, including filter tank ontology 1, is set to filter tank
It the water inlet 2 of 1 upper end of ontology, the first water outlet 3 for being set to 1 lower end of filter tank ontology and is set to outstanding in filter tank ontology 1
Floating filter material layer 5 and precipitation filter material layer 6, suspended filter material layer 5 are set to the top of precipitation filter material layer 6.
The utility model is by setting suspended filter material layer 5 and precipitation filter material layer 6 so that filtering possesses fluid bed and biological filter
The two-fold advantage in pond, and it is simple in structure, floor space is small, and construction cost is small, easy to use.
Further, the filtrate of the suspended filter material layer 5 is haydite, and the filtrate of the precipitation filter material layer 6 is volcanic rock, institute
The filtrate density for stating suspended filter material layer is 1.5g/cm3, the filtrate density for precipitating filter material layer is 2.5g/cm3。
Further, the thickness of the suspended filter material layer 5 is 2m, and the thickness of the precipitation filter material layer 6 is 1m.
Further, the first strainer 4, the aperture of first strainer 4 are equipped at the first water outlet 3 of filter tank ontology lower end
Less than the grain size of the filtrate of precipitation filter material layer 6.
The utility model by set at the first water outlet 3 aperture be less than precipitation filter material layer 6 filtrate grain size the
One strainer 4 so that filtrate is not lost in.
Further, the filter tank ontology 1 is additionally provided with the first backwash water pipe 7 and the second backwash water pipe 8, and described first
Backwash water pipe 7 is set between the suspended filter material layer 5 and precipitation filter material layer 6, and the second backwash water pipe 8 is set to institute
6 lower end of precipitation filter material layer is stated, it is small that the upper surface that the first backwash water pipe 7, second backwashes water pipe 8 offers first
Hole.
The utility model is being precipitated by setting the first backwash water pipe 7 between suspended filter material layer 5 and precipitation filter material layer 6
6 lower end of filter material layer sets the second backwash water pipe 8, and during biological aerated filter, first backwash 7 liang of weeks of water pipe are to one
Moon backwash is primary, and the second backwash water pipe backwash in 8 one to two days once, shortens the recovery time of microorganism, so as to prolong
It has grown and has efficiently used the time.
Further, filter plate 9, the filter 10 on filter plate 9 are further included in the filter tank ontology 1 and is set to filter plate 9
The pebble support layer 11 of top, the precipitation filter material layer 6 are set to the top of the pebble support layer 11.
Further, the filter tank ontology 1 is additionally provided with backwash tracheae 12, and the backwash tracheae 12 is set to the filter
9 lower section of plate, the upper surface of the backwash tracheae 12 offer second orifice.
The utility model is being recoiled by upper surface being set to have the backwash tracheae 12 of second orifice in filter tank ontology 1
During washing, provide enough dissolved oxygens to maintain microorganism high activity in biological aerated filter, so as to improving to organic matter and
The removal rate of ammonia nitrogen.
Further, backwash discharge outlet 13, the filter tank ontology 1 are additionally provided on the side wall of 1 upper end of filter tank ontology
The anti-down chute 14 of upper end opening is inside additionally provided with, the second water outlet of the anti-down chute 14 connects with the backwash discharge outlet 13
Logical, the upper end opening of the anti-down chute 14 is higher than the backwash discharge outlet 13 and less than 1 upper end side of filter tank ontology
Water inlet 2.Anti-down chute 14 can prevent the backwash liquid in backwash discharge outlet 13 from flowing backwards after backwash, simultaneously
Play the role of buffering in backwash, backwash liquid is to the impact force of backwash discharge outlet 13, drop when reducing liquid fluctuating
Low filtrate enters the probability of backwash discharge outlet 13.
The anti-down chute 14 can be independently arranged, in the present embodiment, it is further preferable that the side of the anti-down chute 14
Wall and the side wall of 1 upper end of filter tank ontology are integrally formed, and save space.
Further, the upper end of the anti-down chute 14 is equipped with the second strainer 15, and the aperture of second strainer 15 is less than
The grain size of suspended filter material layer filtrate.Second strainer 15 can directly cover the upper end opening of the anti-down chute 14, at this
In embodiment, it is further preferable that second strainer 15 enclose setting along the upper end side wall of anti-down chute 14.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model rather than to this reality
With the limitation of novel protected range, although being explained in detail with reference to preferred embodiment to the utility model, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (8)
1. a kind of aeration biochemical filter tank, it is characterised in that：Including filter tank ontology, the water inlet that is set to filter tank ontology upper end, set
It is placed in the first water outlet of filter tank ontology lower end and is set to the intrinsic suspended filter material layer in filter tank and precipitation filter material layer, hang
Floating filter material layer is set to the top of precipitation filter material layer；
Wherein, backwash discharge outlet is additionally provided on the side wall of the filter tank ontology upper end, upper end is additionally provided in the filter tank ontology
The anti-down chute of opening, the lower end of the anti-down chute are equipped with the second water outlet, the second water outlet of the anti-down chute and institute
Backwash discharge outlet connection is stated, the upper end opening of the anti-down chute is higher than the backwash discharge outlet and less than the filter tank sheet
The water inlet of body upper end.
2. a kind of aeration biochemical filter tank according to claim 1, it is characterised in that：The filtrate of the suspended filter material layer is pottery
Grain or fibrous nodules, the filtrate of the precipitation filter material layer are one kind in haydite, float stone, volcanic rock.
3. a kind of aeration biochemical filter tank according to claim 1, it is characterised in that：The thickness of the suspended filter material layer is
1m-3m, the thickness of the precipitation filter material layer is 0.8m-1.5m.
4. a kind of aeration biochemical filter tank according to claim 1, it is characterised in that：First water outlet of filter tank ontology lower end
Place is equipped with the first strainer, and the aperture of first strainer is less than the grain size of the filtrate of precipitation filter material layer.
5. a kind of aeration biochemical filter tank according to claim 1, it is characterised in that：It is anti-that the filter tank ontology is additionally provided with first
Wash tub pipe and second backwash water pipe, it is described first backwash water pipe be set to the suspended filter material layer with precipitation filter material layer it
Between, the second backwash water pipe is set to the precipitation filter material layer lower end, the first backwash water pipe, the second backwashing water
The upper surface of pipe offers the first aperture.
6. a kind of aeration biochemical filter tank according to claim 1, it is characterised in that：Filter is further included in the filter tank ontology
Plate, the filter on filter plate and the pebble support layer being set to above filter plate, the precipitation filter material layer are set to the cobble
The top of supporting layer.
7. a kind of aeration biochemical filter tank according to claim 6, it is characterised in that：The filter tank ontology is additionally provided with backwash
Tracheae, the backwash tracheae are set to below the filter plate, and the upper surface of the backwash tracheae offers second orifice.
8. a kind of aeration biochemical filter tank according to claim 1, it is characterised in that：The upper end of the anti-down chute is equipped with the
Two strainers, the aperture of second strainer are less than the grain size of suspended filter material layer filtrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703716.7U CN207537208U (en) | 2017-06-16 | 2017-06-16 | A kind of aeration biochemical filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720703716.7U CN207537208U (en) | 2017-06-16 | 2017-06-16 | A kind of aeration biochemical filter tank |
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| Publication Number | Publication Date |
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| CN207537208U true CN207537208U (en) | 2018-06-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720703716.7U Active CN207537208U (en) | 2017-06-16 | 2017-06-16 | A kind of aeration biochemical filter tank |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606544A (en) * | 2019-09-25 | 2019-12-24 | 浙江联池水务设备股份有限公司 | Biological aerated filter with small floor area |
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2017
- 2017-06-16 CN CN201720703716.7U patent/CN207537208U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110606544A (en) * | 2019-09-25 | 2019-12-24 | 浙江联池水务设备股份有限公司 | Biological aerated filter with small floor area |
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