CN205035139U - Multimedium baffled biological aerated filter - Google Patents
Multimedium baffled biological aerated filter Download PDFInfo
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- CN205035139U CN205035139U CN201520717439.6U CN201520717439U CN205035139U CN 205035139 U CN205035139 U CN 205035139U CN 201520717439 U CN201520717439 U CN 201520717439U CN 205035139 U CN205035139 U CN 205035139U
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- biological
- packing layer
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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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Abstract
The utility model relates to a sewage treatment technical field discloses multimedium baffled biological aerated filter, include two -stage bological aerated filter (1) and cross water hole (2) that two -stage bological aerated filter (1) communicates through cross water hole (2) of downside, two -stage bological aerated filter (1) all is equipped with the packing layer, and packing layer from the top down is first packing layer (31) and second packing layer (32) in proper order, and first packing layer (31) are fixed with microorganism and/or biological enzyme. Multimedium baffled biological aerated filter's application is still disclosed. The utility model discloses set up downflow system and last STREAMING in same bological aerated filter system, device compact structure has reduced area. First order bological aerated filter mainly gets rid of the organic matter in the sewage, reduces the organic loading who gets into second level bological aerated filter to do benefit to nitrifying of second level bological aerated filter. At second level bological aerated filter, further get rid of the organic matter in the sewage to and nitrify under low organic loading.
Description
Technical field
The utility model relates to technical field of sewage, particularly relates to multimedium baffled biological aerated filter.
Background technology
BAF is a kind of Novel sewage New Process for Treatment developed on the basis of ordinary biofilter beginning of the nineties late 1980s.Existing biological filter has following shortcoming: easily produce short flow phenomenon, and filter tank easily blocks.But along water inlet direction, due to the continuous minimizing of organism and dissolved oxygen, biomass also constantly reduces, so organic clearance also constantly reduces, greatly reduces the processing efficiency of organic pollutant.
Summary of the invention
The utility model, for the shortcoming of prior art, discloses multimedium baffled biological aerated filter, reach occupation of land less, reduced investment, working cost are low, efficiency is high, operational management technique effect easily.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals.Multimedium baffled biological aerated filter, comprises two-stage aerated biological filter and water hole, and two-stage aerated biological filter is communicated with by the water hole of downside; Two-stage aerated biological filter is equipped with packing layer, packing layer the first packing layer and the second packing layer successively from top to bottom, first packing layer is fixed with microorganism and/or biological enzyme, is respectively equipped with water inlet pipe and rising pipe on the upside of two-stage aerated biological filter, and the height of water inlet pipe is higher than the height of rising pipe.
The utility model combines feedwater rapid filter and the feature of saprobia catalytic oxidation, retaining and the microbial film of filling surface by filtrate, and under the condition of aeration, to filter, biological adsorption flocculation, biological oxidation is in purifying liquid waste.Owing to there is aerobic, anaerobism, anoxic microenvironment in the body of pond, nitrated, denitrification can be carried out simultaneously, therefore can integrate organic matter removal and denitrogenation.Simultaneously present different biophase due to the minimizing of the nutritive substance along with flow velocity direction, such that the biophase of BAF is quite abundant, food chain is longer and complicated than general technique.
As preferably, two-stage aerated biological filter is first step BAF and second stage BAF, and water inlet pipe is located on the upside of first step BAF, and rising pipe is located on the upside of the BAF of the second stage.。
As preferably, two-stage aerated biological filter also comprises and is located at catch net on the upside of packing layer, is located at supporting layer on the downside of packing layer; Be located at the filter plate on the downside of supporting layer, between supporting layer and filter plate, be provided with aeration tube.Be provided with aeration tube between supporting layer and filter plate, adopt perforated pipe distribution device even gas distribution, solve that bias current, filler are uneven, tracheae holds susceptible to plugging problem.
As preferably, be protective layer on the upside of catch net.
As preferably, also comprise back-purge system, back-purge system comprises aeration tube, backwash tube, back flushing water leg, back flushing water shoot, backwash tube is located in supporting layer, first step BAF is also communicated with by backwash tube with the bottom of second stage BAF, back flushing water leg is located at the upside of first step BAF, and back flushing water shoot is located at the upside of second stage BAF.
As preferably, aeration tube is ring-type aeration tube.
As preferably, the first packing layer is the urethane bio-sponge filler being fixed with microorganism and/or biological enzyme, and the second packing layer is zeolite and granulated active carbon.The utility model adopts multimedium filler, and for the drawback that traditional single filter material BAF exists in actual applications, layer of oxygen deficient and aerobic layer are placed in same BAF system by the utility model, thus improves the nitrogen removal performance of BAF, realizes COD, SS, NH
3the synchronous removal of-N and TN.
Be fixed with microorganism and/or biological enzyme in urethane bio-sponge filler, be placed in the packing layer of upside (i.e. the first packing layer), to remove SS and other pollutents further.After fixation of microbe and/or biological enzyme, urethane bio-sponge filling carrier density is close to the density of water, and load of microorganisms amount is large, and volumetric loading is up to 8kgBOD
5/ m
3d, specific surface area is 15-40m
2/ g; Owing to having larger specific surface area, biofilm is easy, and thus biological load amount is large, and biological load amount can reach more than 10-20g/L, exceeds more than 5 times than existing effluent purification method; And microbial film (i.e. microorganism and/or biological enzyme) upgrades than very fast, thus microorganism (i.e. microorganism and/or biological enzyme) has higher activity, substantially increases processing efficiency and wastewater treatment efficiency.
The combination (namely zeolite and granulated active carbon combine) of multimedium filler takes full advantage of two materials advantage separately; Extend the work period of zeolite, improve the biological activity on granulated active carbon; When not having ammonia nitrogen in high density to impact for a long time, can ensure zeolite long-time running and without the need to regeneration, not only economy but also efficient.Due to the combination of multimedium filler, present semifixed semifluid state, flowing carrier constantly contacts with bubble, and thus its oxygen-transfer efficiency is high, is conducive to accelerating organic oxidation rate.
As preferably, the first packing layer is the poly-third foam filter pearl being fixed with microorganism and/or biological enzyme, and the second packing layer is the one in volcanics, haydite, quartz sand.
The application of multimedium baffled biological aerated filter, comprises the following steps,
A. sewage enters first step BAF through water inlet pipe, sewage is from top to bottom by filler space, the air that aeration tube produces is from top to bottom by filler space, sewage and air are at filler space counter current contact, sewage fully contacts with the microorganism that filler adheres to and/or biological enzyme, and the ammonia in sewage, nitrogen (organonitrogen) are converted into nitric nitrogen by nitrifier in aerobic environment.
B. sewage enters second stage BAF by water hole, the air that sewage and aeration tube produce is all from top to bottom by filler space, sewage fully contacts with the microorganism that filler adheres to and/or biological enzyme, removes the organism in sewage further, carries out nitrated under low organic loading.The dominant bacteria that on biologic packing material in two-stage aerated biological filter, load is different, ensures and needs the carbonization of different condition and nitration reaction can carry out in different regions.
C., after filter tank processes for some time sewage, in filter tank, suspended substance increases, and causes the reduction of filtrate discharge capacity, now needs to carry out back flushing.Process due to sewage carries out step by step, so the amount of suspended substance is successively decreased step by step contained by two-stage aerated biological filter, can be judged the situation of suspended substance by hydraulic pressure difference in two-stage aerated biological filter.Such as: when the water level of first step BAF water level higher than second stage BAF (when in one-level BAF water level, second stage BAF, liquid level difference is greater than preset value), namely illustrate that the discharge capacity of the filtrate of first step BAF is very low, should start to carry out backwash procedure; First close inlet valve and the flowing water Valve of this BAF, only keep backwash BAF aeration, carry out backwash draining.
First step BAF mainly removes the organism in sewage, reduces the organic loading entering second stage BAF, is beneficial to the nitrated of second stage BAF.Meanwhile, the nitrification liquid of backflow utilizes the carbon source in water inlet to carry out denitrification at this section, and the ammonia nitrogen in sewage and organonitrogen are converted into nitric nitrogen by nitrifier in aerobic environment.In second stage BAF, remove the organism in sewage further, and carry out nitrated under low organic loading.Then be rendered as pulling flow type on the whole, reach the object of organic matter removal and denitrogenation dephosphorizing, and effectively alleviate filter clogging problem, realize dirty water purification.On biologic packing material carrier, breed dominant bacterias different separately at two-stage aerated biological filter, and will the carbonization of different condition and nitration reaction be needed separately to carry out in different regions.
Compared with prior art, the beneficial effects of the utility model are:
(1) downflow system and upflowing are arranged in same BAF system by the utility model, and apparatus structure is compact, reduces floor space, reduce capital construction and working cost.
(2) the utility model completes nitrification and denitrification effect in same BAF, achieves COD, SS, NH
3the synchronous removal of-N and TN.
(3) by the combination of different filtrate, enhance the synchronous removal effect of multiple pollutant, improve system capacity of resisting impact load, greatly reduce the possibility hardening and occur:
A. zeolite has the feature of selective adsorption ammonia nitrogen, and its surface also can form microbial film (becoming biozeolite) and the removal ability of ammonia nitrogen is improved simultaneously.
B. zeolite and granulated active carbon combine, and extend the work period of zeolite, make the biological growth on granulated active carbon good, can ensure when there not being long-term ammonia nitrogen in high density to impact zeolite long-time running and without the need to regenerating, economic and reliable.
C. be fixed with microorganism and/or biological enzyme in urethane bio-sponge filler, be placed in the packing layer of upside (i.e. the first packing layer), to remove SS and other pollutents further.After fixation of microbe and/or biological enzyme, urethane bio-sponge filling carrier density is close to the density of water, and load of microorganisms amount is large, and volumetric loading is up to 8kgBOD
5/ m
3d, specific surface area is 15-40m
2/ g; Owing to having larger specific surface area, biofilm is easy, and thus biological load amount is large, and biological load amount can reach more than 10-20g/L, exceeds more than 5 times than existing effluent purification method; And microbial film (i.e. microorganism and/or biological enzyme) upgrades than very fast, thus microorganism (i.e. microorganism and/or biological enzyme) has higher activity, substantially increases processing efficiency and wastewater treatment efficiency.
D. due to the combination of multimedium filler, make filter material layer present semifixed semifluid state, flowing carrier constantly carries out contacting with bubble and constantly cuts, and thus its oxygen-transfer efficiency is high, is conducive to accelerating organic oxidation rate.
E. whole packing layer from the bottom up, the grading composition that packing material size reduces successively, also plays rejection effect preferably.
(4) aeration tube is arranged on below supporting layer, adopts perforated pipe distribution device even gas distribution, solves that bias current, filler are uneven, tracheae holds susceptible to plugging problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment 1
Multimedium baffled biological aerated filter, as shown in Figure 1, comprise two-stage aerated biological filter 1 and water hole 2, two-stage aerated biological filter 1 is communicated with by the water hole 2 of downside; Two-stage aerated biological filter 1 is equipped with packing layer, packing layer the first packing layer 31 and the second packing layer 32 successively from top to bottom, first packing layer 31 is fixed with microorganism and/or biological enzyme, be respectively equipped with water inlet pipe 111 and rising pipe 121 on the upside of two-stage aerated biological filter 1, the height of water inlet pipe 111 is higher than the height of rising pipe 121.
First packing layer 31 is for being fixed with the urethane bio-sponge filler of microorganism and/or biological enzyme, and the second packing layer 32 is zeolite and granulated active carbon.
Two-stage aerated biological filter 1 is first step BAF 11 and second stage BAF 12, and water inlet pipe 111 is located on the upside of first step BAF 11, and rising pipe 121 is located on the upside of second stage BAF 12.Two-stage aerated biological filter 1 also comprises and is located at catch net 33 on the upside of packing layer, is located at supporting layer 34 on the downside of packing layer; Be located at the filter plate 35 on the downside of supporting layer 34, between supporting layer 34 and filter plate 35, be provided with aeration tube 51.It is protective layer 4 on the upside of catch net 33.
Also comprise back-purge system, back-purge system comprises aeration tube 51, backwash tube 52, back flushing water leg, back flushing water shoot, backwash tube 52 is located in supporting layer 34, and first step BAF 11 is also communicated with by backwash tube 52 with the bottom of second stage BAF 12.Aeration tube 51 is ring-type aeration tube.
Embodiment 2
Multimedium baffled biological aerated filter, as shown in Figure 1, comprise two-stage aerated biological filter 1 and water hole 2, two-stage aerated biological filter 1 is communicated with by the water hole 2 of downside, be respectively equipped with water inlet pipe 111 and rising pipe 121 on the upside of two-stage aerated biological filter 1, the height of water inlet pipe 111 is higher than the height of rising pipe 121; Two-stage aerated biological filter 1 is equipped with packing layer, and the first packing layer 31 and the second packing layer 32, first packing layer 31 are fixed with microorganism and/or biological enzyme to packing layer successively from top to bottom.First packing layer 31 is for being fixed with the poly-third foam filter pearl of microorganism and/or biological enzyme, and the second packing layer 32 is the one in volcanics, haydite, quartz sand.
Two-stage aerated biological filter 1 is first step BAF 11 and second stage BAF 12, and water inlet pipe 111 is located on the upside of first step BAF 11, and rising pipe 121 is located on the upside of second stage BAF 12.Two-stage aerated biological filter 1 also comprises and is located at catch net 33 on the upside of packing layer, is located at supporting layer 34 on the downside of packing layer; Be located at the filter plate 35 on the downside of supporting layer 34, between supporting layer 34 and filter plate 35, be provided with aeration tube 51.It is protective layer 4 on the upside of catch net 33.
Also comprise back-purge system, back-purge system comprises aeration tube 51, backwash tube 52, back flushing water leg, back flushing water shoot, backwash tube 52 is located in supporting layer 34, and first step BAF 11 is also communicated with by backwash tube 52 with the bottom of second stage BAF 12.Aeration tube 51 is ring-type aeration tube.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (9)
1. multimedium baffled biological aerated filter, is characterized in that: comprise two-stage aerated biological filter (1) and water hole (2), and two-stage aerated biological filter (1) is communicated with by the water hole (2) of downside; Two-stage aerated biological filter (1) is equipped with packing layer, packing layer the first packing layer (31) and the second packing layer (32) successively from top to bottom, first packing layer (31) is fixed with microorganism and/or biological enzyme, two-stage aerated biological filter (1) upside is respectively equipped with water inlet pipe (111) and rising pipe (121), and the height of water inlet pipe (111) is higher than the height of rising pipe (121).
2. multimedium baffled biological aerated filter according to claim 1, it is characterized in that: two-stage aerated biological filter (1) is first step BAF (11) and second stage BAF (12), water inlet pipe (111) is located at first step BAF (11) upside, and rising pipe (121) is located at second stage BAF (12) upside.
3. multimedium baffled biological aerated filter according to claim 1, is characterized in that: two-stage aerated biological filter (1) also comprises and is located at catch net (33) on the upside of packing layer, is located at supporting layer (34) on the downside of packing layer; Be located at the filter plate (35) of supporting layer (34) downside, between supporting layer (34) and filter plate (35), be provided with aeration tube (51).
4. multimedium baffled biological aerated filter according to claim 3, is characterized in that: catch net (33) upside is protective layer (4).
5. multimedium baffled biological aerated filter according to claim 3, it is characterized in that: also comprise back-purge system, back-purge system comprises aeration tube (51), backwash tube (52), back flushing water leg, back flushing water shoot, and backwash tube (52) is located in supporting layer (34);
First step BAF (11) is also communicated with by backwash tube (52) with the bottom of second stage BAF (12).
6. multimedium baffled biological aerated filter according to claim 5, is characterized in that: aeration tube (51) is ring-type aeration tube.
7. multimedium baffled biological aerated filter according to claim 3, it is characterized in that: also comprise back-purge system, back-purge system comprises aeration tube (51), backwash tube (52), back flushing water leg, back flushing water shoot, and first step BAF (11) is also communicated with by backwash tube (52) with the bottom of second stage BAF (12).
8. multimedium baffled biological aerated filter according to claim 1; it is characterized in that: the first packing layer (31) is for being fixed with the urethane bio-sponge filler of microorganism and/or biological enzyme, and the second packing layer (32) is zeolite and granulated active carbon.
9. multimedium baffled biological aerated filter according to claim 1, it is characterized in that: the first packing layer (31) is for being fixed with the poly-third foam filter pearl of microorganism and/or biological enzyme, and the second packing layer (32) is volcanics, one in haydite, quartz sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717439.6U CN205035139U (en) | 2015-09-16 | 2015-09-16 | Multimedium baffled biological aerated filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520717439.6U CN205035139U (en) | 2015-09-16 | 2015-09-16 | Multimedium baffled biological aerated filter |
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| CN205035139U true CN205035139U (en) | 2016-02-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217785A (en) * | 2015-09-16 | 2016-01-06 | 杭州鼎隆环保科技有限公司 | Multimedium baffled biological aerated filter and application thereof |
| CN106145552A (en) * | 2016-08-29 | 2016-11-23 | 武汉东川自来水科技开发有限公司 | A kind of sewage disposal system based on two-stage aerated biological filter and method |
| CN107381962A (en) * | 2017-08-25 | 2017-11-24 | 四川奥恒环保科技有限公司 | Efficient domestic sewage treatment device |
| CN109205769A (en) * | 2017-06-30 | 2019-01-15 | 江苏天地化纤有限公司 | A kind of biological aerated filter |
-
2015
- 2015-09-16 CN CN201520717439.6U patent/CN205035139U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105217785A (en) * | 2015-09-16 | 2016-01-06 | 杭州鼎隆环保科技有限公司 | Multimedium baffled biological aerated filter and application thereof |
| CN106145552A (en) * | 2016-08-29 | 2016-11-23 | 武汉东川自来水科技开发有限公司 | A kind of sewage disposal system based on two-stage aerated biological filter and method |
| CN109205769A (en) * | 2017-06-30 | 2019-01-15 | 江苏天地化纤有限公司 | A kind of biological aerated filter |
| CN107381962A (en) * | 2017-08-25 | 2017-11-24 | 四川奥恒环保科技有限公司 | Efficient domestic sewage treatment device |
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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: 20160217 Termination date: 20210916 |
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| CF01 | Termination of patent right due to non-payment of annual fee |