CN202440376U - Biological aerated filter with denitrification function - Google Patents
Biological aerated filter with denitrification function Download PDFInfo
- Publication number
- CN202440376U CN202440376U CN2012200587182U CN201220058718U CN202440376U CN 202440376 U CN202440376 U CN 202440376U CN 2012200587182 U CN2012200587182 U CN 2012200587182U CN 201220058718 U CN201220058718 U CN 201220058718U CN 202440376 U CN202440376 U CN 202440376U
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- CN
- China
- Prior art keywords
- nitrification liquid
- distribution system
- gas distribution
- back flushing
- baf
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000011010 flushing procedure Methods 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 23
- 238000010992 reflux Methods 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 238000005273 aeration Methods 0.000 claims description 16
- 210000002249 digestive system Anatomy 0.000 claims description 10
- 238000010926 purge Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 20
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 241000894006 Bacteria Species 0.000 abstract description 5
- 238000001914 filtration Methods 0.000 abstract description 5
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model relates to a biological aerated filter with a denitrification function, belonging to the technical field of sewage treatment equipment. The biological aerated filter comprises a filter body, a filtering material layer, a supporting layer, a water distribution system, a gas distribution system, a back flushing system, a water outlet system and a nitrification liquid reflux system. The gas distribution system is arranged at the middle-lower part of the filtering material layer, so that the whole filtering material layer is divided into an anoxic layer below the gas distribution system and an aerobic layer above the gas distribution system. The nitrification liquid reflux system comprises a nitrification liquid reflux pump and a matching pipeline valve, the water inlet of the nitrification liquid reflux pump is connected with a back flushing water collecting tank, the water outlet of the nitrification liquid reflux pump is connected with a water inlet pipe of the biological aerated filter, nitrification liquid at the upper part of the filter is circularly conveyed to an anoxic area at the bottom through power supplied by the pump, and nitrate nitrogen in the nitrification liquid is reduced into nitrogen to escape by using a denitrifying bacterium, thus the biological denitrification function is realized.
Description
Technical field
The utility model belongs to technical field of sewage treatment equipment, relates to a kind of BAF that possesses denitrification functions.
Background technology
BAF is also referred to as the submerged BAF; This technology has fully been used for reference the basic mentality of designing of rapid filter in biological contact oxidation metallization processes and the feedwater; Through using special filtration medium; Make it integrate aeration oxygen supply, filtration and back flushing regularly fast, realize removal organism and suspended substance (SS).BAF is made up of five parts such as water distribution system, aeration gas distribution system, supporting layer, biofilter material layer, back-purge system (comprising back flushing air and backwashing water) on structure.
Tradition BAF aeration gas distribution system is positioned at the cobble supporting layer; Whole filter material layer all is in the aerobic environment; The biology that is attached on the filtrate is aerobic microbiological, thereby it is good to removal effect of organic matter, aspect the removal of total nitrogen; But can only ammonia-state nitrogen be changed into nitric nitrogen, thoroughly remove and can not change into nitrogen.
Summary of the invention
The utility model provides a kind of BAF that possesses denitrification functions to the deficiency of prior art.
In order to solve the problems of the technologies described above, the technical scheme that the utility model provides is:
A kind of BAF that possesses denitrification functions; Comprise pond, filter tank body, filter material layer, supporting layer, water distribution system, aeration gas distribution system, back-purge system, outlet system and nitrification liquid return-flow system; Said aeration gas distribution system places the filter material layer middle and lower part; Whole filter material layer is divided into gas distribution system with the layer of oxygen deficient of lower section and the gas distribution system aerobic layer with top,, has created biological denitrificaion necessary " anoxic+aerobic " environment to satisfy in the biological denitrification process to the demands of different of dissolved oxygen; The mode that refluxes through nitrification liquid realizes the removal of total nitrogen in the wastewater treatment, has enlarged the range of application of BAF.
In addition, the aeration gas distribution system adopts the higher perforated pipe aerating regulation system of bulk strength, is convenient to fix.
The aeration gas distribution system adopts the channel-section steel support to be fixed in the filter material layer, is subjected to displacement when the back flushing to prevent it.
Back-purge system comprises back flushing inlet pipe, back flushing water pipe, backwash pump and back flushing water shoot, and the back flushing water pipe links to each other with rising pipe, and backwash pump links to each other with the back flushing water pipe.Outlet system comprises effluent trough and rising pipe.
The nitrification liquid return-flow system comprises nitrification liquid reflux pump, Digestive system return line and supporting valve; The nitrification liquid return line adopts flange to be connected with the Digestive system reflux pump; The Digestive system return line links to each other with the back flushing water leg, and the water outlet of nitrification liquid reflux pump connects the BAF water inlet pipe, provides power that nitrification liquid circulation in top, filter tank is delivered to the bottom anoxic zones through the nitrification liquid reflux pump; Utilize denitrifying bacteria that the nitrate-nitrogen reduction in the nitrification liquid is overflowed for nitrogen, thereby realize the biological denitrificaion function.
The utility model has been created biological denitrificaion necessary " anoxic+aerobic " environment, and the mode that refluxes through nitrification liquid realizes the removal of total nitrogen in the wastewater treatment, has enlarged the range of application of BAF.
Description of drawings
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of aeration gas distribution system among Fig. 1.
Among the figure: pond, 1-filter tank body, 2-filter material layer, 3-aeration gas distribution system, 4-supporting layer; The 5-water distribution system, 6-backwash inlet pipe, 7-backwash water leg, 8-effluent trough; The 9-rising pipe, 10-back flushing water shoot, 11-back flushing water pipe, 12-water inlet pipe; 13-nitrification liquid return line, 14-backwash pump, 15-nitrification liquid reflux pump.
Embodiment
As shown in Figure 1, the BAF that possesses denitrification functions comprises pond, filter tank body 1, filter material layer 2, supporting layer 4, water distribution system 5, aeration gas distribution system 3, back-purge system, outlet system and nitrification liquid return-flow system.Aeration gas distribution system 3 places filter material layer 2 middle and lower parts, and whole filter material layer 2 is divided into the upper and lower part, and the upper strata is aerobic zone, and lower floor is an anoxic zones.Back-purge system comprises back flushing inlet pipe 6, back flushing water pipe 11, backwash pump 14 and back flushing water shoot 10, and back flushing water pipe 11 links to each other with rising pipe 9, and backwash pump 14 links to each other with back flushing water pipe 11.Outlet system comprises effluent trough 8 and rising pipe 9.Aeration gas distribution system 3 adopts the channel-section steel supports to be fixed in the filter material layer 2, is subjected to displacement when the back flushing to prevent it.The nitrification liquid return-flow system comprises nitrification liquid reflux pump 15, Digestive system return line 13 and supporting valve; Digestive system return line 13 adopts flange to be connected with Digestive system reflux pump 15; Digestive system return line 13 links to each other with back flushing water leg 7; The water outlet of nitrification liquid reflux pump 15 connects BAF water inlet pipe 12; Provide power that nitrification liquid circulation in top, filter tank is delivered to the bottom anoxic zones through nitrification liquid reflux pump 15, utilize denitrifying bacteria that the nitrate-nitrogen reduction in the nitrification liquid is overflowed for nitrogen, thereby realize the biological denitrificaion function.
Principle of work:
Former water is through the water distributing area of water inlet pipe entering denitrogenation BAF bottom, upwards flow through oxygen-starved area and aerobic zone.Ammonia nitrogen in the former water is aerobic zone on the top of filter material layer 2, through the nitrification of aerobic nitrification bacterium, the ammonia nitrogen in the waste water is oxidized to nitrite or nitrate nitrogen; Flow into the back flushing water leg with water; The sewage that utilizes the nitrification liquid reflux pump will pass through the aerobic zone processing then gets into water inlet pipe through the nitrification liquid reflux pump, and mixes with former water, gets into the water distributing area of denitrogenation BAF bottom again; Uniformly distributing; With the oxygen-starved area, bottom of current filter material layer 2 through the filter tank, in the oxygen-starved area, utilizing the denitrification of denitrifying bacteria (denitrifier) is nitrogen (N with nitrite and nitrate reduction
2) from waste water, overflow, thereby realize that BAF circular treatment sewage has reached the denitrogenation purpose.
Claims (6)
1. BAF that possesses denitrification functions; Comprise pond, filter tank body, filter material layer, supporting layer, water distribution system, aeration gas distribution system, back-purge system, outlet system and nitrification liquid return-flow system; It is characterized in that; Said aeration gas distribution system places the filter material layer middle and lower part, and whole filter material layer is divided into gas distribution system with the layer of oxygen deficient of lower section and the gas distribution system aerobic layer with top.
2. the BAF that possesses denitrification functions according to claim 1 is characterized in that, the aeration gas distribution system adopts the perforated pipe aerating regulation system, is convenient to fix.
3. the BAF that possesses denitrification functions according to claim 2 is characterized in that, the aeration gas distribution system adopts the channel-section steel support to be fixed in the filter material layer, is subjected to displacement when the back flushing to prevent it.
4. the BAF that possesses denitrification functions according to claim 1; It is characterized in that; Back-purge system comprises back flushing inlet pipe, back flushing water pipe, backwash pump and back flushing water shoot, and the back flushing water pipe links to each other with rising pipe, and backwash pump links to each other with the back flushing water pipe.
5. the BAF that possesses denitrification functions according to claim 1 is characterized in that outlet system comprises effluent trough and rising pipe.
6. the BAF that possesses denitrification functions according to claim 1; It is characterized in that; The nitrification liquid return-flow system comprises nitrification liquid reflux pump, Digestive system return line and supporting valve; The nitrification liquid return line adopts flange to be connected with the Digestive system reflux pump, and the Digestive system return line links to each other with the back flushing water leg, and the water outlet of nitrification liquid reflux pump connects the BAF water inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200587182U CN202440376U (en) | 2012-02-22 | 2012-02-22 | Biological aerated filter with denitrification function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200587182U CN202440376U (en) | 2012-02-22 | 2012-02-22 | Biological aerated filter with denitrification function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440376U true CN202440376U (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200587182U Expired - Lifetime CN202440376U (en) | 2012-02-22 | 2012-02-22 | Biological aerated filter with denitrification function |
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|---|---|
| CN (1) | CN202440376U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214090A (en) * | 2013-05-16 | 2013-07-24 | 南京大学 | Anoxic humic filler filter tank and method for treating nitrogen containing degradation-resistant wastewater |
| CN104118938A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A magnetic anaerobic/aerobic biofiltration water purification system and a water purification method |
| CN104118939A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | An anaerobic-aerobic/electro-catalysis coupled water purification system and a water purification method |
| CN104118931A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A novel electric-biology coupled water purification system and a water purification method |
| CN104118933A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A three-dimensional electric-biology-coupled water purification system and a water purification method |
| CN104118965A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | An anaerobic-aerobic/three-dimensional electro-catalysis coupled water purification system and water purification method |
| CN104529091A (en) * | 2015-01-08 | 2015-04-22 | 北京中瑞佳亿环境科技有限公司 | Sewage treatment device and method for micro-power multi-medium fixed biological filter |
| CN106145369A (en) * | 2016-08-02 | 2016-11-23 | 昆明南方水务有限公司 | A kind of for reducing the consolidation system of nitrate in sewage |
| CN109775936A (en) * | 2019-03-13 | 2019-05-21 | 东华大学 | A kind of low energy consumption domestic sewage processing system |
| CN112811612A (en) * | 2021-02-22 | 2021-05-18 | 青海洁神环境能源产业有限公司 | Single-component B-BAF filter tank device and sewage denitrification treatment method |
| CN113044986A (en) * | 2021-05-08 | 2021-06-29 | 北控水务(中国)投资有限公司 | Denitrification reactor and sewage treatment system |
-
2012
- 2012-02-22 CN CN2012200587182U patent/CN202440376U/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214090A (en) * | 2013-05-16 | 2013-07-24 | 南京大学 | Anoxic humic filler filter tank and method for treating nitrogen containing degradation-resistant wastewater |
| CN103214090B (en) * | 2013-05-16 | 2014-06-11 | 南京大学 | Anoxic humic filler filter tank and method for treating nitrogen containing degradation-resistant wastewater |
| CN104118965A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | An anaerobic-aerobic/three-dimensional electro-catalysis coupled water purification system and water purification method |
| CN104118939A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | An anaerobic-aerobic/electro-catalysis coupled water purification system and a water purification method |
| CN104118931A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A novel electric-biology coupled water purification system and a water purification method |
| CN104118933A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A three-dimensional electric-biology-coupled water purification system and a water purification method |
| CN104118938A (en) * | 2014-07-03 | 2014-10-29 | 济南大学 | A magnetic anaerobic/aerobic biofiltration water purification system and a water purification method |
| CN104118933B (en) * | 2014-07-03 | 2016-04-20 | 济南大学 | A kind of three-dimensional electric biological coupling water cleaning systems and process for purifying water |
| CN104118931B (en) * | 2014-07-03 | 2016-06-22 | 济南大学 | A kind of electricity biological coupling water cleaning systems and process for purifying water |
| CN104529091A (en) * | 2015-01-08 | 2015-04-22 | 北京中瑞佳亿环境科技有限公司 | Sewage treatment device and method for micro-power multi-medium fixed biological filter |
| CN106145369A (en) * | 2016-08-02 | 2016-11-23 | 昆明南方水务有限公司 | A kind of for reducing the consolidation system of nitrate in sewage |
| CN109775936A (en) * | 2019-03-13 | 2019-05-21 | 东华大学 | A kind of low energy consumption domestic sewage processing system |
| CN109775936B (en) * | 2019-03-13 | 2021-12-10 | 东华大学 | Low-energy-consumption domestic sewage treatment system |
| CN112811612A (en) * | 2021-02-22 | 2021-05-18 | 青海洁神环境能源产业有限公司 | Single-component B-BAF filter tank device and sewage denitrification treatment method |
| CN113044986A (en) * | 2021-05-08 | 2021-06-29 | 北控水务(中国)投资有限公司 | Denitrification reactor and sewage treatment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANDONG LIYUAN HAIDA ENVIRONMENT ENGINEERING CO., Free format text: FORMER OWNER: LIU LEI Effective date: 20130315 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 250101 JINAN, SHANDONG PROVINCE TO: 250100 JINAN, SHANDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130315 Address after: 250100 room 702-2, block A, Huaxin Road, Licheng District, Shandong, Ji'nan 15, China Patentee after: Shandong Liyuan Haida Environment Engineering Co., Ltd. Address before: 250101 Shandong city of Ji'nan province high tech Zone Qing Shun Road three century wealth center A3 block 618 Patentee before: Liu Lei |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |