CN203065236U - Submerged type fixed bed biological membrane denitrifying nitrogen removal filter basin - Google Patents
Submerged type fixed bed biological membrane denitrifying nitrogen removal filter basin Download PDFInfo
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- CN203065236U CN203065236U CN2013200394042U CN201320039404U CN203065236U CN 203065236 U CN203065236 U CN 203065236U CN 2013200394042 U CN2013200394042 U CN 2013200394042U CN 201320039404 U CN201320039404 U CN 201320039404U CN 203065236 U CN203065236 U CN 203065236U
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Abstract
The utility model discloses a submerged type fixed bed biological membrane denitrifying nitrogen removal filter tank which comprises a nitrogen removal tank, a sludge discharge tank, a sludge raw water pump, and a pneumatic-rubbing sludge discharge air blower, wherein an inflow water distribution canal is arranged below the nitrogen removal tank, a gas-water mixing zone, a W type water distribution filter brick and a biological reaction zone are arranged at the bottom of the nitrogen removal tank from bottom to top, an air perforated pipe is arranged in the gas-water mixing zone, a waist section sludge discharge pipe is arranged at the middle part of the nitrogen removal tank, a water outlet tank is arranged at the upper part of the nitrogen removal tank, and the pneumatic-rubbing sludge discharge air blower is connected with the air perforated pipe by the pneumatic-rubbing main air pipe, and the sludge raw water pump is connected with the inflow water distribution canal by an inflow water pipeline. Compared with the prior art, the submerged type fixed bed biological membrane denitrifying nitrogen removal filter tank has the advantages that the organic matter BOD (Biochemical Oxygen Demand) in raw water is utilized as an organic carbon source so as to perform biological nitrogen removal on backflow nitrifying liquid, thereby omitting the feeding device of the organic carbon source and saving the running cost; the higher denitrifying rate can be kept; the hydraulic retention time is short, the denitrifying effect is good, the filter tank can run for a long time and cannot be blocked.
Description
Technical field
The utility model relates to a kind of submerged static bed biomembrane denitrification denitrogenation filter tank.
Background technology
Because nitrogen compound is nutritive substance, can cause the excessive multiplication of algae and water, produce eutrophication, dead algae consumes the oxygen in the water body, and the algae toxin can be enriched in the water generates object, and by food chain the people is poisoned.American-European countries is very strict to the emission control of total nitrogen in the sewage, and it is≤15mg/l that nitrogen discharged requirement still is lower than the requirement of west 3-5mg/l that China GB GB18919-2002 town sewage is handled emission standard one-level A total nitrogen emission standard.
Nitrogen in the sewage is mainly organonitrogen, ammonia-state nitrogen, nitrite nitrogen and nitric nitrogen, denitrogenation method is mainly by physico-chemical process and biological process, because physico-chemical process denitrification process complexity, cost are higher, it is big to promote difficulty, so biological denitrificaion is the main technique of all sewage work's sewage water denitrifications.Biological denitrificaion at first is converted into ammonia nitrogen by heterotrophic microorganism with organonitrogen, be nitric nitrogen by the microbial transformation of nourishing one's nature certainly again, there is different oxygen type aerobic-anaerobic microbe under the condition of anaerobic or hypoxemia, to carry out anti-nitration reaction at last, nitrate-nitrogen reduction is converted into the N2 circulation enters in the atmosphere.
The biological denitrificaion of existing market operation is mainly the active sludge denitrification process, because the sludge concentration of active sludge is low, biomass is little, being subjected to low temperature effect, winter operation denitrification effect again is zero substantially, add that active sludge denitrification tank body structure is huge, the operation operation is complicated, the running cost height, so the traditional biological denitrification process can't satisfy current and the total nitrogen discharged requirement of strict sewage disposal day by day.
The utility model content
The utility model provides a kind of submerged static bed biomembrane denitrification denitrogenation filter tank in order to solve the above-mentioned deficiency of prior art.
Above-mentioned purpose of the present utility model realizes by following technical scheme: a kind of submerged static bed biomembrane denitrification denitrogenation filter tank, it is characterized in that: comprise denitrification tank, the spoil disposal pond, the gentle stranding spoil disposal of sewage raw water pump gas blower, the denitrification tank below is provided with into water distributing flue, described denitrification tank bottom is respectively equipped with the air water mixing zone from bottom to top, W type water distribution filter block and bio-reaction zone, described bio-reaction zone adopts natural cobblestone and high hole volcanics as the bio-film colonization medium, be provided with the air perforations pipe in the air water mixing zone, the denitrification tank middle part is provided with waist section shore pipe, denitrification tank top is provided with effluent trough, described gas is rubbed the spoil disposal gas blower with the hands and is rubbed air person in charge connection air perforations pipe with the hands by gas, and described sewage raw water pump connects the water inlet distributing flue by inlet channel.
Described spoil disposal is provided with sludge pump, spoil disposal bottom tube and fluid level controller in the pond.
The utility model is to adopt the fixed biologically bed, and filler adopts natural pebble and the high hole volcanics particle of 25-50mm, and anaerobic environment is provided, and cultivates the facultative denitrifying microorganism of different oxygen type.Submerged static bed biomembrane denitrification filter pool belongs to preposition denitrogenation filter tank, adopt flow lifting type water inlet pattern, be arranged at before the aerobic biochemical reaction tank, backflow by the Aerobic Pond nitrification liquid, denitrifying bacterium utilizes organic carbon source in the former water as electron donor, as electron acceptor(EA), namely utilize NO with the nitrite nitrogen in the phegma and nitric nitrogen
2And NO
3In fixed oxygen breathe, make NO
2And NO
3Be converted into N
2Enter in the air, reach the purpose of sewage water denitrification.
The utility model advantage compared with prior art is:
1, the utility model is to adopt fixed biologically bed, fixed biologically membrane technique, for the biological filter provides anaerobic environment, be arranged at after the preliminary sedimentation tank, before the nitrated filter tank of aerobe, utilize organism BOD in the former water as organic carbon source, the backflow nitrification liquid is carried out biological denitrificaion, save the congenial device of organic carbon source, save running cost;
2, the filter tank is arranged on before the aerobic aeration pond, and winter operation can reduce the loss of sewage temperature, guarantees that the denitrification biology is temperature required, keeps higher denitrification rate;
3, the utility model hydraulic detention time is short, and denitrification effect is good, and in denitrogenation, oxidation of organic compounds alleviates the organic loading of road, back biological treatment, can improve the nitrification efficiency of road, back biochemistry;
4, the utility model adopts gas to frustrate spoil disposal and the control of waist section spoil disposal, guarantees that the filter tank long-time running do not stop up, inner the no mechanical moving parts in filter tank, and filler does not have losss, nothing is worn and torn, and is the low denitrification bio-filter of safeguarding truly.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
As shown in Figure 1, a kind of submerged static bed biomembrane denitrification denitrogenation filter tank, it is characterized in that: comprise denitrification tank 1, spoil disposal pond 18, sewage raw water pump 5 gentle stranding spoil disposal gas blowers 7, denitrification tank 1 below is provided with into water distributing flue 2, described denitrification tank 1 bottom is respectively equipped with air water mixing zone 11 from bottom to top, W type water distribution filter block 12 and bio-reaction zone 6, described bio-reaction zone 6 adopts natural cobblestone and high hole volcanics as the bio-film colonization medium, be provided with air perforations pipe 10 in the air water mixing zone 11, denitrification tank 1 middle part is provided with waist section shore pipe 13, waist section shore pipe 13 is provided with waist section spoil disposal control valve 20, and connection spoil disposal bottom tube 14, spoil disposal bottom tube 14 is provided with spoil disposal bottom valve 15, denitrification tank 1 top is provided with effluent trough 19, described gas is rubbed spoil disposal gas blower 7 with the hands and is responsible for 8 connection air perforations pipes 10 by gas stranding air, and gas stranding air is responsible for 8 and is provided with gas stranding air control valve 9; Be provided with sludge pump 16, spoil disposal bottom tube 14 and fluid level controller 17 in the described spoil disposal pond 18, described sewage raw water pump 5 connects water inlet distributing flue 2 by inlet channel 3, and described inlet channel 3 is provided with water inlet control valve 4.
Principle of work of the present utility model: raw waste water enters into water distributing flue 2 by sump pump 5 by inlet channel 3, sewage flow lifting type in the distributing flue enters air water mixing zone 11, W type water distribution filter block 12 plays the biologic packing material that supports bio-reaction zone 6, be whole filter tank water distribution uniformity, during spoil disposal gas rubbed with the hands the effect that even air is assigned to whole filter tank, bio-reaction zone 6 is made up of natural pebble and the high hole of the volcanics natural biological filler of 10-50mm different gradation, the denitrification biology is perched growth at bio-reaction zone 6 along journey, under anaerobic environment, microorganism utilizes organism BOD in the former water as the energy of cellular metabolism, carry out anaerobic respiration with the nitrite nitrogen in the Aerobic Pond return digestion liquid and the fixed oxygen in the nitric nitrogen, make NO
2And NO
3Be converted into N
2Enter in the air, reach the sewage water denitrification purpose, the water after the processing is discharged by effluent trough 19, enters the back segment biological treatment.Suspended substance is not held back in this denitrification denitrogenation filter tank, do not need the clear water back flushing, omit the back flushing fresh water pump, as long as regularly carry out gas stranding spoil disposal according to water inlet concentration of suspension and old microbial film dropping situations, when needing spoil disposal, as long as open spoil disposal bottom valve 15 successively, waist section spoil disposal control valve 20, gas is rubbed air control valve 9 gentle stranding spoil disposal air-blasters 7 with the hands, gas is frustrated air by pipeline 8, perforated pipe 10 is transported to spirit water mixing zone, pond 11, empty G﹠W 11 carries out powerful mixing in the mixing zone, be evenly distributed to whole bio-reaction zone 6 by W type filter block 12, the bio-reaction zone filler carried out the air water rubbing of frustrating based on gas, the suspended substance stripping media that makes old microbial film and hold back, discharge the pond body by waist section spoil disposal and spoil disposal bottom tube, whole spoil disposal process only needs several minutes namely to come to an end, realize that bio-reaction zone 6 thoroughly cleans, the sewage of sludge sump 18 is by liquid level meter 17 control sludge pumps 16, the system former process of being transported to is handled, gas is frustrated spoil disposal does not need to stop into water, uses when water inlet control valve only overhauls.
Above-mentioned embodiment is exemplary, is to be the restriction that this patent is comprised scope in order better to make those skilled in the art can understand this patent, can not to be interpreted as; So long as according to spirit that this patent discloses do anyly be equal to change or modify, all fall into the scope that this patent comprises.
Claims (2)
1. submerged static bed biomembrane denitrification denitrogenation filter tank, it is characterized in that: comprise denitrification tank, the spoil disposal pond, the gentle stranding spoil disposal of sewage raw water pump gas blower, the denitrification tank below is provided with into water distributing flue, described denitrification tank bottom is respectively equipped with the air water mixing zone from bottom to top, W type water distribution filter block and bio-reaction zone, described bio-reaction zone adopts natural cobblestone and high hole volcanics as the bio-film colonization medium, be provided with the air perforations pipe in the air water mixing zone, the denitrification tank middle part is provided with waist section shore pipe, denitrification tank top is provided with effluent trough, described gas is rubbed the spoil disposal gas blower with the hands and is rubbed air person in charge connection air perforations pipe with the hands by gas, and described sewage raw water pump connects the water inlet distributing flue by inlet channel.
2. a kind of submerged static bed biomembrane denitrification denitrogenation according to claim 1 filter tank, it is characterized in that: described spoil disposal is provided with sludge pump, spoil disposal bottom tube and fluid level controller in the pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200394042U CN203065236U (en) | 2013-01-24 | 2013-01-24 | Submerged type fixed bed biological membrane denitrifying nitrogen removal filter basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200394042U CN203065236U (en) | 2013-01-24 | 2013-01-24 | Submerged type fixed bed biological membrane denitrifying nitrogen removal filter basin |
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| Publication Number | Publication Date |
|---|---|
| CN203065236U true CN203065236U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200394042U Expired - Lifetime CN203065236U (en) | 2013-01-24 | 2013-01-24 | Submerged type fixed bed biological membrane denitrifying nitrogen removal filter basin |
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|---|---|
| CN (1) | CN203065236U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864208A (en) * | 2014-04-09 | 2014-06-18 | 中持（北京）水务运营有限公司 | Waist washwater gutter for denitrification deep bed filter |
| CN114044609A (en) * | 2021-11-19 | 2022-02-15 | 江苏力鼎环保装备有限公司 | AO device and AO technology for efficiently removing nitrogen and phosphorus |
-
2013
- 2013-01-24 CN CN2013200394042U patent/CN203065236U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864208A (en) * | 2014-04-09 | 2014-06-18 | 中持（北京）水务运营有限公司 | Waist washwater gutter for denitrification deep bed filter |
| CN114044609A (en) * | 2021-11-19 | 2022-02-15 | 江苏力鼎环保装备有限公司 | AO device and AO technology for efficiently removing nitrogen and phosphorus |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151203 Address after: 200120, building 21, building 2000, Pudong Avenue, Shanghai, Pudong New Area, China. E Patentee after: Fu Fuyu Address before: 201700, No. 539, Lane 16, Shengli Road, Qingpu District, Shanghai, 4 Patentee before: Shanghai Odorfree Environment Engineering Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20211026 Address after: Room 1928, 58 Fumin Branch Road, Chongming District, Shanghai 202150 (Shanghai Hengtai Economic Development Zone) Patentee after: SHANGHAI ODORFREE ENVIRONMENT ENGINEERING Co.,Ltd. Address before: Block E, 21/F, 2000 Pudong Avenue, Pudong New Area, Shanghai Patentee before: Fu Fuyu |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
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| CX01 | Expiry of patent term |