CN201301250Y - Comprehensive treatment tank for effluent of aeration biological filter - Google Patents
Comprehensive treatment tank for effluent of aeration biological filter Download PDFInfo
- Publication number
- CN201301250Y CN201301250Y CNU2008201793922U CN200820179392U CN201301250Y CN 201301250 Y CN201301250 Y CN 201301250Y CN U2008201793922 U CNU2008201793922 U CN U2008201793922U CN 200820179392 U CN200820179392 U CN 200820179392U CN 201301250 Y CN201301250 Y CN 201301250Y
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- water outlet
- water
- settling region
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- utility
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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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- Treatment Of Biological Wastes In General (AREA)
Abstract
The utility model discloses a comprehensive treatment tank for effluent of an aeration biological filter, which comprises a tank body (10), wherein a partition wall (11) and a water distribution wall (4) are orderly arranged in the tank body (10) along the direction from water inlet to water outlet; the tank body (10) is divided into a mixing zone (1), a steady flow water distribution zone (2) and a precipitation zone (5); the bottom of the mixing zone (1) is communicated with the bottom of the steady flow water distributing zone (2); the effluent is discharged from the tail end of the precipitation zone (5); the bottom of the precipitation zone (5) is provided with a mud pipe (8); and a mud discharging channel (9) is arranged at the outside of the tank body (10). The utility model has the advantages of simple structure, diversified function and stable sewage treatment effect, greatly reduces the construction investment and widens the application of the aeration biological filter to the upgrading and rebuilding project of urban sewage treatment plants.
Description
Technical field
The utility model relates to the multi-function pool of using in a kind of municipal sewage treatment, relates in particular to a kind of multi-function pool of handling the BAF water outlet.
Background technology
Current, to bring up to and carry out GB18918-2002 one-level A standard and become inexorable trend at the water quality standard that goes out of municipal sewage plant, the key distinction of one-level A standard and one-level B standard, secondary standard is that the former has strengthened TN (total nitrogen), NH
3-N (ammonia nitrogen), TP (total phosphorus), BOD
5The removal of pollutent indexs such as (five-day BOD) SS (suspended substance), excrement colibacillus group.
At present, the municipal sewage plant generally adopts biological aerated filter process to remove TN, NH
3-N, BOD
5Deng pollutent, and the effect of removing is better, has obtained insider's generally approval already.This technology mainly adds TSA biological filter, nitrated filter tank by denitrification filter pool and forms, but BAF is because current, biomembranous cutting comes off it to air-flow to filter material surface, and flow out with water outlet, directly cause the suspended substance can not stably reaching standard, and the existing disinfecting tank that connects after BAF also can only rely on the microbiological indicators such as excrement colibacillus group that add in the disinfectant reduction water, can not effectively remove the suspended substance in the sewage; Simultaneously, if behind the TSA biological filter, establish sand filtration or other filtration facilities again, cause fabrication cost height, running cost to increase.
The utility model content
The technical problems to be solved in the utility model provides a kind of comprehensive treating process pond that is used for the BAF water outlet, and it is simple in structure, functional diversities also can be expanded the application of BAF in sewage work's project of upgrading and rebuilding.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of comprehensive treating process pond that is used for the BAF water outlet, comprise the pond body, in the body of pond, be provided with dividing wall and water distribution wall successively along intaking to the water outlet direction, the pond body is divided into mixing zone, current stabilization water distributing area and settling region, the mixing zone communicates in the bottom with the current stabilization water distributing area, water outlet is discharged from the end of settling region, is provided with shore pipe in the bottom of settling region, is provided with the spoil disposal ditch in the outside of pond body.
End in the settling region is provided with the channel that catchments, and water outlet is discharged through the channel that catchments.
In the current stabilization water distributing area, be provided with the energy dissipating weir.
Middle part in the static state deposition district is provided with training wall.
Compared with prior art, the utility model technology has the following advantages:
1, simple in structure, the functional diversities of the utility model.The utility model is by being provided with dividing wall and water distribution wall at Chi Tizhong, the work area of pond body is divided into three parts, be mixing zone, current stabilization water distributing area and settling region, in use, the water outlet of BAF is induced one in the mixing zone of the present utility model, in the mixing zone, add disinfectant, disinfectant is mixed fully with the filter tank water outlet, thereby follow-up current stabilization water distributing area and settling region are become disinfecting tank, make medicament and water that be arranged enough duration of contact, thereby remove excrement colibacillus group wherein; Simultaneously, because mostly the suspended substance of carrying secretly in the BAF water outlet is the microbial film that come off by current, air-flow cutting, have compact structure, heavy characteristics, under action of gravity, it can precipitate very fast in settling region of the present utility model, upper strata, settling region clear water is collected by the channel that catchments of being located at the settling region end and is discharged, and therefore, the utility model possesses sterilization, two kinds of functions of precipitation simultaneously.
2, the utility model effect stability of disposing of sewage.In the utility model, in the current stabilization water distributing area, be provided with the energy dissipating weir, after the water outlet of mixing zone enters the current stabilization water distributing area like this, because the barrier effect on energy dissipating weir, eliminate its unnecessary energy, its fluidised form is tended to be steady, on current stabilization district longitudinal section, advance with the plug-flow form, even by the water distribution wall, enter the settling region stably, the setting of training wall in the settling region has significantly reduced the Reynolds number that comes water, make it be tending towards laminar flow regime as much as possible, for suspended substance has wherein been created good precipitation environment, simultaneously, water outlet of the present utility model is discharged by the channel that catchments, because the end in the settling region is provided with effluent weir, in draining, can not produce the turbulent fluctuation of current in the settling region, guarantee the job stability of settling region, thereby make the utility model effect stability of disposing of sewage.
3, the utility model can be expanded the application of BAF in municipal sewage plant's project of upgrading and rebuilding.Biological aerated filter process is used more extensive in the municipal sewage plant, but consider from the elevation design, the own head loss of denitrification filter pool and nitrated filter tank is bigger, should not establish the bigger sand filter of same head loss thereafter, restricted the application of BAF in the project of upgrading and rebuilding to a certain extent, and the utility model goes out the characteristic of water suspension at BAF, realized the efficient stable of sewage is handled, expanded the application of BAF in municipal sewage plant's project of upgrading and rebuilding to a great extent.
4, the utility model can be saved construction investment.Because the utility model combines sterilization and sedimentary two kinds of functions, for setting up sand filtration or pressure type filtration unit, under the prerequisite that guarantees same treatment effect, significantly saved construction investment.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is the structural representation that the utility model is used for the comprehensive treating process pond of BAF water outlet.
Fig. 2 is the floor map that the utility model is used for the comprehensive treating process pond of BAF water outlet.
Embodiment
See figures.1.and.2, a kind of comprehensive treating process pond that is used for the BAF water outlet, comprise pond body 10, in pond body 10, be provided with dividing wall 11 and water distribution wall 4 successively along intaking to the water outlet direction, pond body 10 is divided into mixing zone 1, current stabilization water distributing area 2 and settling region 5, mixing zone 1 and current stabilization water distributing area 2 communicate in the bottom, 5 end is provided with the channel 7 that catchments in the settling region, 5 bottom is provided with shore pipe 8 in the settling region, be provided with spoil disposal ditch 9 in the outside of pond body 10, be provided with energy dissipating weir 3 in current stabilization water distributing area 2,5 middle part is provided with training wall 6 in the settling region.
In the present embodiment, described water distribution wall 2 is that water distribution tracery wall or other can produce the device of uniform water distribution function, and principle of work is evenly to open the hole on a body of wall or baffle plate, guarantees that current can uniformly distributing; Simultaneously, by end crest of weir 12 is set in the settling region, make water outlet of the present utility model discharge through the channel that catchments, end by the settling region is provided with effluent weir, in draining, can not produce the turbulent fluctuation of current in the settling region, further guarantee the job stability of settling region, thereby made the utility model effect stability of disposing of sewage.
Working process of the present utility model is as follows, at first enter mixing zone 1 through the water outlet after the BAF processing, disinfectant adds by drug feeding pipeline and enters the mixing zone simultaneously, come water and medicament in the mixing zone, to enter current stabilization water distributing area 2 behind the thorough mixing, after being located at energy dissipating weir 3 energy dissipatings in the current stabilization water distributing area 2, come water in the current stabilization district, to advance with plug-flow form stably, and enter settling region 5 uniformly by water distribution wall 4, under action of gravity, the microbial film that comes off of the compact structure of carrying secretly in the water sinks down at the bottom of the pond gradually, the upper strata clear water is collected and is discharged by the channel 7 that catchments of being located at settling region 5 ends, the suspended substance that is accumulated at the bottom of the pond regularly is expelled to spoil disposal ditch 9 by shore pipe 8, thereby makes the suspended substance in the BAF water outlet obtain removing; Simultaneously, disinfectant mixes with coming water in the mixing zone fully, and follow-up current stabilization water distributing area and settling region fully contact with excrement colibacillus group and with the environment that it is killed, make excrement colibacillus group obtain removing for disinfectant provides.
Claims (4)
1, a kind of comprehensive treating process pond that is used for the BAF water outlet, comprise pond body (10), it is characterized in that: in pond body (10), be provided with dividing wall (11) and water distribution wall (4) successively along intaking to the water outlet direction, pond body (10) is divided into mixing zone (1), current stabilization water distributing area (2) and settling region (5), mixing zone (1) communicates in the bottom with current stabilization water distributing area (2), water outlet from the settling region end of (5) discharge, the bottom of (5) is provided with shore pipe (8) in the settling region, is provided with spoil disposal ditch (9) in the outside of pond body (10).
2, the comprehensive treating process pond that is used for the BAF water outlet according to claim 1, it is characterized in that: the end of (5) is provided with the channel that catchments (7) in the settling region, and water outlet is discharged through the channel that catchments (7).
3, the comprehensive treating process pond that is used for the BAF water outlet according to claim 1 is characterized in that: be provided with energy dissipating weir (3) in current stabilization water distributing area (2).
4, the comprehensive treating process pond that is used for the BAF water outlet according to claim 1, it is characterized in that: the middle part of (5) is provided with training wall (6) in the settling region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201793922U CN201301250Y (en) | 2008-12-05 | 2008-12-05 | Comprehensive treatment tank for effluent of aeration biological filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201793922U CN201301250Y (en) | 2008-12-05 | 2008-12-05 | Comprehensive treatment tank for effluent of aeration biological filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201301250Y true CN201301250Y (en) | 2009-09-02 |
Family
ID=41084872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201793922U Expired - Lifetime CN201301250Y (en) | 2008-12-05 | 2008-12-05 | Comprehensive treatment tank for effluent of aeration biological filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201301250Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617003A (en) * | 2012-04-18 | 2012-08-01 | 中冶华天工程技术有限公司 | Biofilter combination system for upgrading and reconstructing sewage plant |
| CN102653436A (en) * | 2012-06-01 | 2012-09-05 | 中冶华天南京工程技术有限公司 | Sewage reuse treatment system and process |
-
2008
- 2008-12-05 CN CNU2008201793922U patent/CN201301250Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617003A (en) * | 2012-04-18 | 2012-08-01 | 中冶华天工程技术有限公司 | Biofilter combination system for upgrading and reconstructing sewage plant |
| CN102653436A (en) * | 2012-06-01 | 2012-09-05 | 中冶华天南京工程技术有限公司 | Sewage reuse treatment system and process |
| CN102653436B (en) * | 2012-06-01 | 2014-02-19 | 中冶华天南京工程技术有限公司 | Sewage reuse treatment system and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Huatian Nanjing Engineering & Technology Corporation, MCC Assignor: Zhongye Huatian Engineering Technology Co., Ltd. Contract record no.: 2011320000561 Denomination of utility model: Comprehensive treatment tank for effluent of aeration biological filter Granted publication date: 20090902 License type: Exclusive License Record date: 20110415 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090902 |