CN207986807U - A kind of depth denitrification filter pool without backwash - Google Patents
A kind of depth denitrification filter pool without backwash Download PDFInfo
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- CN207986807U CN207986807U CN201820218146.7U CN201820218146U CN207986807U CN 207986807 U CN207986807 U CN 207986807U CN 201820218146 U CN201820218146 U CN 201820218146U CN 207986807 U CN207986807 U CN 207986807U
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Abstract
The utility model provides a kind of depth denitrification filter pool without backwash, including filter tank ontology；Filter tank ontology includes wastewater inlet, water outlet, water distributor, denitrification carrier；Wastewater inlet is connect with water distributor；Water distributor is equipped with several water distributing pores；It is equipped with several denitrification carriers above water distributing pore；Denitrification carrier is hollow structure；Denitrification carrier side wall is equipped with frosted line；Denitrifying bacteria biofilm is reacted on denitrification carrier side wall；Flow passes through denitrification carrier hollow structure in filter tank.The utility model is uniformly piled up in treatment sewage using unique denitrification carrier structure, has not only been used as carbon source but also has been used as microbial carrier, it is most important that ensures that depth denitrification filter pool is not easy to form silting while not using back-washing equipment.The utility model is reasonable for structure, highly practical from manual maintenance or few manual maintenance, is promoted and applied convenient for rural sewage treatment.
Description
Technical field
It is handled the utility model is related to the denitrification in water process more particularly to a kind of depth denitrification without backwash is filtered
Pond.
Background technology
In terms of the development course of domestic and international pollution control, sewage disposal initial interest is mainly COD resolutions, but with people
Promotion to environmental quality requirement, sewage discharge require also gradually strictly getting up to the removal of nitrogen, phosphorus etc..In comparison, phosphorus
Chemical precipitation method can be utilized to remove, and the degradation of nitrogen then relies primarily on biological treatment, this requires sewage treatment process
Unit need to be reinforced considering Denitrogenation.
China's town sewage plant Effluent criteria is secondary discharge standard before 2002, wherein only ammonia nitrogen (NH3-N) refers to
Mark requires, and does not have total nitrogen index request, and in this case, NH3-N can be oxidized to nitrate nitrogen by aeration and biological processing procedure, realizes
Qualified discharge.
Currently, being typically employed in conventional two stage treatment for the domestic and international decentralized type sewage treatment facility of the removal of nitrogen in sewage
Depth denitrification is carried out afterwards and proposes mark transformation, and this technology is intended to the depth of the regional decentralized type sewage processing equipment such as key breakthrough rural area
Denitrification puies forward mark technology, and implementation focus engineering proposes mark transformation, completes utilization of wastewater resource degree.About denitrification denitrogenation：
The denitrogenation of waste water processing procedure that nitrate nitrogen in water is reduced into ammonia nitrogen using denitrifying bacteria and is removed it in turn.Denitrification
Bacterium is largely present in sewage, and reaction carries out under anoxic conditions, and oxygen in water should be less than 0.5mg/L.It is required that in sewage
There are a certain number of organic substances (can supplement and add secondary precipitation sludge, methanol, acetic acid etc.).
A certain number of floating stuffings are added in traditional denitrification filter pool, when sewage is continuously across reactor, specific surface
The larger filler of product gradually grows on its surface and is born because of stirring (aerobic reactor is air stirring) free movement in water
Object film, different oxygen and autotrophic microbe in biomembrane carry out metabolism using the nutriment in water, and then reach and decontaminate
The purpose of water pollutant, purified water；Because filler, water are all movements, therefore the mass transfer between gas and water, solid phase is preferable, on filler
The activity of biomembrane is higher, strong compared with traditional biological embrane method anti impulsion load, buffer capacity.
But traditional biologic packing material such as denitrification carrier is granular or block structure, after the long-time use of filter tank, is easily formed
Deposition or the water distribution pipe for blocking filter tank bottom, while being unevenly distributed for denitrification carrier in filter tank is easily caused, make denitrification
Reaction can not be accomplished to homogenize, and influence denitrification efficiency and quality；In traditional mode, using backwash process, and backwash is used
Pump blocks the water cleaning that recoils into filter tank, but this way equipment is relative complex, while needing artificial fixed cycle operator, especially pair
In rural sewage treatment because measuring little and unattended situation, manpower maintenance cost is high, is not easy to promotion and implementation.
Utility model content
For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of anti-nitre of the depth without backwash
Change filter tank, treatment sewage is uniformly piled up in using unique denitrification carrier structure, be not only used as carbon source but also adhere to as microorganism
Carrier, it is most important that ensure that depth denitrification filter pool is not easy to form silting while not using back-washing equipment.
The utility model provides a kind of depth denitrification filter pool without backwash, including filter tank ontology；The filter tank ontology
Including wastewater inlet, water outlet, water distributor, denitrification carrier；The wastewater inlet is connect with the water distributor；The water distributor
It is equipped with several water distributing pores；It is equipped with several denitrification carriers above the water distributing pore；The denitrification carrier is hollow knot
Structure；The denitrification carrier side wall is equipped with frosted line；Denitrifying bacteria biofilm is reacted on the denitrification carrier side wall；Filter tank
Middle flow passes through the denitrification carrier hollow structure；Treatment sewage flow to the water distributor water distribution from the wastewater inlet
Afterwards, it is discharged from the water outlet after the denitrification carrier through being uniformly piled up in treatment sewage carries out anti-nitration reaction.
Further, the denitrification carrier is made of several columns, is connected with each other between column, the column
Centre is equipped with through-hole.
Further, the denitrification carrier is made of three columns, and three columns pass through triangle connection element phase
It connects.
Further, further include the first chamber, the second chamber；The water distributor is installed on first bottom of chamber portion；The anti-nitre
Change carrier and is placed in first intracavitary；The wastewater inlet connects first chamber, and first intracavitary carries out anti-nitration reaction；
First chamber is connected to second chamber by the first connecting pipe；Second chamber connects the water outlet.
Further, second intracavitary is additionally provided with reflux pump；The reflux pump is connected to described first by return duct
Chamber.
Further, the return duct is connect with the wastewater inlet by three-way pipe.
Further, minimum point is higher than minimum point on the vertical guide of the water outlet on the vertical guide of the wastewater inlet.
Further, minimum point is minimum higher than on the vertical guide of the water outlet on the vertical guide of first connecting pipe
Point；Minimum point is higher than minimum point on the vertical guide of first connecting pipe on the vertical guide of the wastewater inlet.
Further, the bottom of first chamber is additionally provided with sewage draining exit；The bottom of second chamber is additionally provided with sewage draining exit.
Further, the return sludge ratio of the reflux pump is 3-10.
Compared with prior art, the beneficial effects of the utility model are：
The utility model provides a kind of depth denitrification filter pool without backwash, including filter tank ontology；Filter tank ontology includes
Wastewater inlet, water outlet, water distributor, denitrification carrier；Wastewater inlet is connect with water distributor；Water distributor is equipped with several water distributions
Hole；It is equipped with several denitrification carriers above water distributing pore；Denitrification carrier is hollow structure；Denitrification carrier side wall is equipped with frosted
Line；Denitrifying bacteria biofilm is reacted on denitrification carrier side wall；Flow passes through denitrification carrier hollow structure in filter tank；It waits locating
Sewage is managed after wastewater inlet flow to water distributor water distribution, the denitrification carrier through being uniformly piled up in treatment sewage carries out anti-nitre
It is discharged from water outlet after changing reaction.The utility model is uniformly piled up in treatment sewage using unique denitrification carrier structure, both
It is used as microbial carrier again as carbon source, it is most important that ensure the filter of depth denitrification while not using back-washing equipment
Pond is not easy to form silting.The utility model is reasonable for structure, highly practical from manual maintenance or few manual maintenance, is convenient for rural area
Sewage disposal promotes and applies.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.Specific embodiment of the present utility model is shown in detail by following embodiment and its attached drawing.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is a kind of depth denitrification filter pool structural schematic diagram without backwash of the utility model；
Fig. 2 is a kind of depth denitrification filter pool vertical view without backwash of the utility model；
Fig. 3 is the sectional view A-A of Fig. 2；
Fig. 4 is the denitrification carrier structure schematic diagram of the utility model.
In figure：Filter tank ontology 1, wastewater inlet 2, water outlet 3, return duct 4, the first chamber 5, the second chamber 6, water distributor 7, reflux
Pump the 8, first connecting pipe 9, denitrification carrier 10, through-hole 11, triangle connection element 12.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
A kind of depth denitrification filter pool without backwash, as shown in Figure 1-Figure 3, including filter tank ontology 1；Filter tank ontology 1 wraps
Include wastewater inlet 2, water outlet 3, water distributor 7, denitrification carrier 10；Wastewater inlet 2 is connect with water distributor 7；Water distributor 7 is equipped with
Several water distributing pores；It is equipped with several denitrification carriers 10 above water distributing pore；Denitrification carrier 10 is hollow structure；Denitrification carrier 10
Side wall is equipped with frosted line；Denitrifying bacteria biofilm is reacted on 10 side wall of denitrification carrier；Flow is carried by denitrification in filter tank
10 hollow structure of body；Denitrification carrier 10 is accumulated uniformly in filter tank, flow can in the carrier between flow therethrough, no plug hidden danger；
Treatment sewage is after wastewater inlet 2 flow to 7 water distribution of water distributor, the denitrification carrier 10 through being uniformly piled up in treatment sewage
It is discharged from water outlet 3 after carrying out anti-nitration reaction.Wherein, denitrification carrier 10 be by after PBS degradable biological particle fusions at
Type is made, surface frosted structure, adheres to convenient for microorganism, in domestic sewage in rural areas pipe network, because rainwater and the comprehensive of pesticide are made
With causing nitrogen source excessive, carbon source is relatively fewer, carbon source is used as using denitrification carrier 10, and as attached for denitrifying bacteria
The carrier；In general, the aperture of the hollow structure of denitrification carrier 10 is 10mm-20mm, the too small easy formation in aperture blocks,
Aperture is excessive to be easily reduced material specific surface area, leads to the reduction of denitrification efficiency；Using the denitrification carrier 10 of hollow structure
It prevents depth denitrification filter pool bottom from forming silting, while effectively avoiding increasing back-washing equipment, and ensure denitrification efficiency, in nothing
The case where needing manual maintenance or few manual maintenance, realizes depth denitrification.Further, reflux pump 8 in increasing, wherein sludge
Reflux ratio is 3-10, keeps certain water flow impact pressure, prevents sludge in hole from accumulating more and causing to block；Flow increases
Afterwards, nitrogen caused by denitrification can be taken away from water body rapidly, and without accumulative hidden danger, while there is certain stirring to make for interior reflux
With nitric efficiency can be improved.
In one embodiment, it as shown in figure 4, denitrification carrier 10 is made of several columns, is mutually interconnected between column
It connects, through-hole 11 is equipped among column.As shown in figure 4, denitrification carrier 10 is made of three columns, three columns pass through three
Angle connector 12 is connected with each other.
In one embodiment, as shown in Figure 2 and Figure 3, a kind of depth denitrification filter pool without backwash further include the first chamber 5,
Second chamber 6；Water distributor 7 is installed on 5 bottom of the first chamber；Denitrification carrier 10 is placed in the first chamber 5；The connection of wastewater inlet 2 first
Chamber 5,5 interior progress anti-nitration reaction of the first chamber；First chamber 5 is connected to the second chamber 6 by the first connecting pipe 9；Second chamber 6 connects
Water outlet 3.Wherein, the first chamber 5 is used as anti-nitration reaction chamber；Second chamber 6 is used as reflux and carries out secondary deep denitrification, specifically
, it is additionally provided with reflux pump 8 in the second chamber 6；Reflux pump 8 is connected to the first chamber 5 by return duct 4, as shown in figure 3, return duct 4 with
Wastewater inlet 2 is connected by three-way pipe.
In one embodiment, to prevent backing up of sewage, minimum point is higher than the lead of water outlet 3 on the vertical guide of wastewater inlet 2
Minimum point on vertical plane.Minimum point is higher than minimum point on the vertical guide of water outlet 3 on the vertical guide of first connecting pipe 9；Sewage into
Minimum point is higher than minimum point on the vertical guide of the first connecting pipe 9 on the vertical guide of mouth 2.
In one embodiment, for convenience of the dredging after long-time use, the first chamber 5, the second chamber 6 bottom be additionally provided with blowdown
Mouthful.
Particularly, denitrification carrier side wall is equipped with frosted line, the more conducively biofilm of microorganism, keeps the film formation time shorter,
Without backwash, energy consumption, simple in structure, easy to maintain is reduced, the denitrogenation processing that sustained release rate is very suitable for decentralized type sewage needs
It asks, concentration is reduced to 5mg/L hereinafter, meeting the peak demand of current rural domestic sewage treatment from 30-50mg/L, reaches country
Four class water quality standards.
The utility model provides a kind of depth denitrification filter pool without backwash, including filter tank ontology；Filter tank ontology includes
Wastewater inlet, water outlet, water distributor, denitrification carrier；Wastewater inlet is connect with water distributor；Water distributor is equipped with several water distributions
Hole；It is equipped with several denitrification carriers above water distributing pore；Denitrification carrier is hollow structure；Denitrification carrier side wall is equipped with frosted
Line；Denitrifying bacteria biofilm is reacted on denitrification carrier side wall；Flow passes through denitrification carrier hollow structure in filter tank；It waits locating
Sewage is managed after wastewater inlet flow to water distributor water distribution, the denitrification carrier through being uniformly piled up in treatment sewage carries out anti-nitre
It is discharged from water outlet after changing reaction.The utility model is uniformly piled up in treatment sewage using unique denitrification carrier structure, both
It is used as microbial carrier again as carbon source, it is most important that ensure the filter of depth denitrification while not using back-washing equipment
Pond is not easy to form silting.The utility model is reasonable for structure, highly practical from manual maintenance or few manual maintenance, is convenient for rural area
Sewage disposal promotes and applies.
More than, the only preferred embodiment of the utility model not makees limit in any form to the utility model
System；The those of ordinary skill of all industry can be shown in by specification attached drawing and above and swimmingly implement the utility model；But
It is that all those skilled in the art are not departing within the scope of technical solutions of the utility model, utilizes disclosed above skill
Art content and the equivalent variations of a little variation, modification and evolution made, are the equivalent embodiment of the utility model；Meanwhile
All substantial technologicals according to the utility model to the variation, modification and evolution etc. of any equivalent variations made by above example,
Still fall within the protection domain of the technical solution of the utility model.
Claims (10)
1. a kind of depth denitrification filter pool without backwash, it is characterised in that：Including filter tank ontology；The filter tank ontology includes dirt
Water inlet, water outlet, water distributor, denitrification carrier；The wastewater inlet is connect with the water distributor；The water distributor is equipped with
Several water distributing pores；It is equipped with several denitrification carriers above the water distributing pore；The denitrification carrier is hollow structure；It is described
Denitrification carrier side wall is equipped with frosted line；Denitrifying bacteria biofilm is reacted on the denitrification carrier side wall；Flow in filter tank
Pass through the denitrification carrier hollow structure；Treatment sewage is after the wastewater inlet flow to the water distributor water distribution, through equal
The even denitrification carrier being piled up in treatment sewage is discharged after carrying out anti-nitration reaction from the water outlet.
2. a kind of depth denitrification filter pool without backwash as described in claim 1, it is characterised in that：The denitrification carrier
It is made of several columns, is connected with each other between column, through-hole is equipped among the column.
3. a kind of depth denitrification filter pool without backwash as claimed in claim 2, it is characterised in that：The denitrification carrier
It is made of three columns, three columns are connected with each other by triangle connection element.
4. a kind of depth denitrification filter pool without backwash as described in claim 1, it is characterised in that：Further include the first chamber,
Second chamber；The water distributor is installed on first bottom of chamber portion；The denitrification carrier is placed in first intracavitary；The sewage
Import connects first chamber, and first intracavitary carries out anti-nitration reaction；First chamber passes through first with second chamber
Connecting pipe is connected to；Second chamber connects the water outlet.
5. a kind of depth denitrification filter pool without backwash as claimed in claim 4, it is characterised in that：Second intracavitary is also
Equipped with reflux pump；The reflux pump is connected to first chamber by return duct.
6. a kind of depth denitrification filter pool without backwash as claimed in claim 5, it is characterised in that：The return duct and institute
Wastewater inlet is stated to connect by three-way pipe.
7. such as a kind of depth denitrification filter pool without backwash of claim 1 to 6 any one of them, it is characterised in that：It is described
Minimum point is higher than minimum point on the vertical guide of the water outlet on the vertical guide of wastewater inlet.
8. a kind of depth denitrification filter pool without backwash as claimed in claim 4, it is characterised in that：First connecting tube
Minimum point is higher than minimum point on the vertical guide of the water outlet on the vertical guide in road；Minimum point on the vertical guide of the wastewater inlet
Higher than minimum point on the vertical guide of first connecting pipe.
9. a kind of depth denitrification filter pool without backwash as claimed in claim 4, it is characterised in that：The bottom of first chamber
Portion is additionally provided with sewage draining exit；The bottom of second chamber is additionally provided with sewage draining exit.
10. a kind of depth denitrification filter pool without backwash as claimed in claim 5, it is characterised in that：The reflux pump
Return sludge ratio is 3-10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820218146.7U CN207986807U (en) | 2018-02-07 | 2018-02-07 | A kind of depth denitrification filter pool without backwash |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820218146.7U CN207986807U (en) | 2018-02-07 | 2018-02-07 | A kind of depth denitrification filter pool without backwash |
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| CN207986807U true CN207986807U (en) | 2018-10-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249565A (en) * | 2018-02-07 | 2018-07-06 | 优德太湖水务（苏州）有限公司 | A kind of depth denitrification filter pool without backwash |
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2018
- 2018-02-07 CN CN201820218146.7U patent/CN207986807U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249565A (en) * | 2018-02-07 | 2018-07-06 | 优德太湖水务（苏州）有限公司 | A kind of depth denitrification filter pool without backwash |
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