CN204400694U - A kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect - Google Patents
A kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect Download PDFInfo
- Publication number
- CN204400694U CN204400694U CN201420794752.5U CN201420794752U CN204400694U CN 204400694 U CN204400694 U CN 204400694U CN 201420794752 U CN201420794752 U CN 201420794752U CN 204400694 U CN204400694 U CN 204400694U
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- China
- Prior art keywords
- membrane
- synchronous nitration
- denitrification denitrogenation
- membrane bioreactor
- nitration denitrification
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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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- 239000012528 membrane Substances 0.000 title claims abstract description 49
- 238000006396 nitration reaction Methods 0.000 title claims abstract description 19
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 230000000694 effects Effects 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005273 aeration Methods 0.000 claims abstract description 13
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 7
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 241000894006 Bacteria Species 0.000 abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000002203 pretreatment Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 13
- 239000010865 sewage Substances 0.000 description 10
- 239000002068 microbial inoculum Substances 0.000 description 5
- 241000193830 Bacillus <bacterium> Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001057811 Paracoccus <mealybug> Species 0.000 description 2
- 241000589597 Paracoccus denitrificans Species 0.000 description 2
- 241000589776 Pseudomonas putida Species 0.000 description 2
- 230000001651 autotrophic effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000588986 Alcaligenes Species 0.000 description 1
- 241000588813 Alcaligenes faecalis Species 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 241000190932 Rhodopseudomonas Species 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229940005347 alcaligenes faecalis Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003851 biochemical process Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model discloses a kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect, primarily of the settling region connected successively (11), film biological treatment zone (21) and power control district (31) composition, it is characterized in that: be provided with one or more swash plate (12) in described settling region (11) and carry out pre-treatment; Film biological treatment zone (21) strengthens micropore aeration pipe (22) to maintain comparatively suitable dissolved oxygen content; Power control district (31) is by water pump (32), air pump (33) and PLC two-position controller (34), and to the hydraulic detention time of film bioreactor device, the parameter such as gas-water ratio and water-out manners controls automatically.Nitrification bacteria and aerobic denitrifying bacteria are placed in the same area growth and carry out denitrification reaction by this device, thus realize synchronous nitration and denitrification, greatly reduce the occupation of land of device, improve treatment effect.
Description
Technical field
The utility model belongs to field of environment engineering, particularly a kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect.
Background technology
Traditional denitrification process comprises nitrification and denitrification two processes, namely nitrifying process is completed by autotrophic type nitrifier, denitrification process is completed by heterotroph denitrifying bacteria, but carbon source needed for these two kinds of function yeast is different, the demand of the aspect such as dissolved oxygen, pH is contrary, result in nitrification and denitrification two processes is difficult to unified over time and space, considerably increases occupation of land scale scale and the Construction and operation expense of biochemical process.
Membrane bioreactor (Membrane bioreactor is called for short MBR) is a kind of high-efficiency sewage treatment technology combined with biological processing unit by film separation unit.Due to efficiently retaining of film, make the stable effluent quality of MBR, eliminate the second pond of traditional technology, therefore also greatly reduce the floor space for the treatment of process.
The volume how realizing efficient denitrification process and minimizing sewage apparatus is the emphasis of sewage treatment area scientific worker research always, has important economic worth.
Summary of the invention
Synchronously can carry out nitration denitrification denitrogenation effect for realizing in sewage disposal, the utility model discloses a kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect.
The membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect of the present utility model forms primarily of settling region (11), film biological treatment zone (21) and power control district (31), is provided with one or more swash plate (12) in described settling region (11).
Described film biological treatment zone (21) is containing membrane module (23), micropore aeration pipe (22).
Described membrane module (23) is made up of membrane element (231) and header (232).
Described membrane module (23) is made up of one or more membrane elements (231) and header (232), and described header (232) is connected with membrane element (231).
Described membrane element (231) for PVDF material flat sheet membrane, membrane pore size be 0.2 μm, membrane flux Q=400 ~ 550L/ sheet d), header (232) is UPVC material.
On the bottom that described micropore aeration pipe (22) is distributed in film biological treatment zone (21) and part pool wall, aeration tube aperture is 6mm, and axially spaced-apart is 60 ~ 80mm, and radial aperture angle is 140 degree.
Described power control district (31) forms primarily of water pump (32), air pump (33) and PLC two-position controller (34).
The beneficial effects of the utility model are:
(1) nitrification bacteria and aerobic denitrifying bacteria are placed in the same area growth and carry out denitrification reaction by this device, thus realize synchronous nitration and denitrification, and this will reduce the occupation of land of device greatly, reduces by more than 30% with traditional nitration denitrification technique than floor space.
(2) this device is different from traditional synchronous nitration and denitrification, traditional synchronous nitration and denitrification utilizes micro-aeration condition to create micro-aerobic zone and micro-anaerobic zone, in micro-aerobic zone, Autotrophic nitrification bacterium carries out nitrifying process, in micro-anaerobic zone, heterotrophic denitrifying Bacteria carries out denitrification process, this dissolved oxygen condition requires very high, causes effluent quality unstable in actual applications.In this device, nitrification bacteria is consistent in carbon source, dissolved oxygen, pH etc. with aerobic denitrifying bacteria, and reaction conditions balances, and reduces, stable effluent quality to the requirement of operation.
(3) this device gas-water ratio better for the microorganism in active sludge provides suitable dissolved oxygen conditions, can promote symplastic growth and the metabolism of nitrification bacteria and aerobic denitrifying bacteria to 28:1.
(4) microorganism that this device uses is all the microbial inoculum of the routine that can buy, and these microorganisms are adaptable, the change that can conform very soon after adding, and the change that influent quality can be resisted.
(5) this device steady running 80 days, be used for Treating Municipal Sewage factory water inlet.Water inlet TN is 38.3 ~ 62.6mg/L, and water outlet TN can be reduced to 7.7 ~ 13.5mg/L, and clearance is 80%, stable effluent quality.
Accompanying drawing explanation
Fig. 1 is membrane bioreactor structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
(1) membrane bioreactor structure
Fig. 1 is membrane bioreactor structural representation of the present utility model, it is a kind of film bioreactor device of aerobic synchronous nitration and denitrification, adopt " sloping plate deposition+membrane bioreactor " combination process, primarily of settling region (11), film biological treatment zone (21) and power control district (31) three part composition, main equipment material is steel construction, all makes the degree of depth anticorrosion.
Settling region (11) arranges one or more swash plate (12), mainly carries out precipitation pre-treatment to oarse-grained suspended substance.
Film biological treatment zone (21) mainly comprises membrane module (23), micropore aeration pipe (22) etc., wherein membrane module (23) is made up of membrane element (231) and header (232), described membrane module (23) is made up of one or more membrane elements (231) and header (232), and described header (232) is connected with membrane element (231).Wherein membrane element (231) is PVDF material flat sheet membrane, and membrane pore size is 0.2 μm, membrane flux Q=400 ~ 550L/ sheet d), header (232) is UPVC material; Micropore aeration pipe (22) is distributed in bottom and the part pool wall of film biological treatment zone (21), and aeration tube aperture is 6mm, and axially spaced-apart is 60 ~ 80mm, and radial aperture angle is 140 degree.
Power and control region are primarily of compositions such as water pump (32), air pump (33) and PLC two-position controllers (34), and to the hydraulic detention time of film bioreactor device, the parameter such as gas-water ratio and water-out manners controls automatically.
(2) microbial inoculum adds
The aerobic denitrifying bacteria that membrane bioreactor adds and nitrification bacteria are conventional microbial inoculum, obtain by buying.Aerobic denitrifying bacteria be mainly Rhodopseudomonas (
pseudomonas), Alkaligenes (
alcaligenes), paracoccus (
paracoccus) and bacillus (
bacillus) etc.; Nitrification bacteria be pseudomonas putida (
pseudomonas putida), Paracoccus denitrificans (
paracoccus denitrificans) and Bacillus foecalis alkaligenes (
alcaligenes faecalis) etc.
Unloading phase disposable microbial inoculum dosage be 5% of reactor volume, the ratio of aerobic denitrifying bacteria and nitrification bacteria is about 1:1; Add a microbial inoculum every 10d after 20d, dosage is 1% of reactor volume, and the ratio of aerobic denitrifying bacteria and nitrification bacteria is about 1:1, adds 5 times continuously.
(3) implementation process
First sewage enter settling region (11), residence time 2.5h, and macrobead suspended substance precipitates in inclined-plate clarifying basin, makes sewage realize pre-treatment.Pretreated sewage enters film biological treatment zone (21), adopts air pump and micropore aeration pipe (22) to carry out aeration, make gas-water ratio be 28:1 bottom film biological treatment zone; By water pump, the water after process is passed through withdrawing device in membrane module (32) header, water pump adopts low pressure to aspirate, produce water vacuum tightness before ensureing the film of membrane module and be no more than 0.04MPa (0.4kg) pressure, and adopt the step Smoking regime i.e. operation scheme of " 10min runs; 1min stops ", control sewage and be about 4.5h in the residence time of film biological treatment zone (21).
This device steady running 80 days, be used for Treating Municipal Sewage factory water inlet.Water inlet TN is 38.3 ~ 62.6mg/L, and water outlet TN can be reduced to 7.7 ~ 13.5mg/L, and clearance is 80%, stable effluent quality.
In sum, but the utility model is not limited to above-mentioned embodiment, and persons skilled in the art are in the technical scope disclosed by the utility model, and the change that can expect easily, all within protection domain of the present utility model.
Claims (6)
1. one kind can realize the membrane bioreactor of synchronous nitration denitrification denitrogenation effect, primarily of the settling region connected successively (11), film biological treatment zone (21) and power control district (31) composition, it is characterized in that: in described settling region (11), be provided with one or more swash plate (12).
2. can realize the membrane bioreactor of synchronous nitration denitrification denitrogenation effect as claimed in claim 1, it is characterized in that: described film biological treatment zone (21) is containing membrane module (23), micropore aeration pipe (22).
3. can realize the membrane bioreactor of synchronous nitration denitrification denitrogenation effect as claimed in claim 2, it is characterized in that: described membrane module (23) is made up of one or more membrane elements (231) and header (232), and described header (232) is connected with membrane element (231).
4. can realize the membrane bioreactor of synchronous nitration denitrification denitrogenation effect as claimed in claim 3, it is characterized in that: described membrane element (231) is PVDF material flat sheet membrane, membrane pore size is 0.2 μm, membrane flux Q=400 ~ 550L/ sheet d, and header (232) is UPVC material.
5. can realize the membrane bioreactor of synchronous nitration denitrification denitrogenation effect as claimed in claim 2, it is characterized in that: on the bottom that described micropore aeration pipe (22) is distributed in film biological treatment zone (21) and part pool wall, aeration tube aperture is 6mm, axially spaced-apart is 60 ~ 80mm, and radial aperture angle is 140 degree.
6. can realize the membrane bioreactor of synchronous nitration denitrification denitrogenation effect as claimed in claim 1, it is characterized in that: described power control district (31) forms primarily of water pump (32), air pump (33) and PLC two-position controller (34).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420794752.5U CN204400694U (en) | 2014-12-17 | 2014-12-17 | A kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420794752.5U CN204400694U (en) | 2014-12-17 | 2014-12-17 | A kind of membrane bioreactor realizing synchronous nitration denitrification denitrogenation effect |
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| CN204400694U true CN204400694U (en) | 2015-06-17 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481209A (en) * | 2016-02-17 | 2016-04-13 | 王纬 | Municipal sewage treatment system |
| CN108911406A (en) * | 2018-07-26 | 2018-11-30 | 赣州市翔义科技有限公司 | A kind of urban wastewater treatment device |
| CN109169414A (en) * | 2018-07-24 | 2019-01-11 | 广东省石油与精细化工研究院 | A method of using compound heterotrophic nitrification-aerobic denitrification microbial inoculum high density circulating water cultivation peacock fry |
| CN110510740A (en) * | 2019-08-27 | 2019-11-29 | 危杏 | Sewage simultaneous nitrification-denitrification aeration control system and aeration method |
| CN110697883A (en) * | 2018-07-09 | 2020-01-17 | 中国科学院生态环境研究中心 | Method for strengthening denitrification function of membrane bioreactor and slowing down membrane pollution |
-
2014
- 2014-12-17 CN CN201420794752.5U patent/CN204400694U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105481209A (en) * | 2016-02-17 | 2016-04-13 | 王纬 | Municipal sewage treatment system |
| CN110697883A (en) * | 2018-07-09 | 2020-01-17 | 中国科学院生态环境研究中心 | Method for strengthening denitrification function of membrane bioreactor and slowing down membrane pollution |
| CN110697883B (en) * | 2018-07-09 | 2020-12-15 | 中国科学院生态环境研究中心 | Method for strengthening denitrification function of membrane bioreactor and slowing down membrane pollution |
| CN109169414A (en) * | 2018-07-24 | 2019-01-11 | 广东省石油与精细化工研究院 | A method of using compound heterotrophic nitrification-aerobic denitrification microbial inoculum high density circulating water cultivation peacock fry |
| CN108911406A (en) * | 2018-07-26 | 2018-11-30 | 赣州市翔义科技有限公司 | A kind of urban wastewater treatment device |
| CN110510740A (en) * | 2019-08-27 | 2019-11-29 | 危杏 | Sewage simultaneous nitrification-denitrification aeration control system and aeration method |
| CN110510740B (en) * | 2019-08-27 | 2022-03-01 | 危杏 | Sewage simultaneous nitrification and denitrification aeration control system and aeration method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 |
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| CF01 | Termination of patent right due to non-payment of annual fee |