CN203307111U - Biological aerated filter - Google Patents
Biological aerated filter Download PDFInfo
- Publication number
- CN203307111U CN203307111U CN2013202473104U CN201320247310U CN203307111U CN 203307111 U CN203307111 U CN 203307111U CN 2013202473104 U CN2013202473104 U CN 2013202473104U CN 201320247310 U CN201320247310 U CN 201320247310U CN 203307111 U CN203307111 U CN 203307111U
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- filter
- air intake
- communicated
- intake branch
- back flushing
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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
Abstract
The utility model discloses a biological aerated filter, comprising a filter body, wherein the filter body is orderly provided with a backwash aerator, a filter plate, an oxygenation aerator, a supporting layer and a nano microcrystalline composite filter material layer from bottom to top, so that the filter body is partitioned into a buffer water distribution layer and a clean water area; the buffer water distribution layer is arranged below the filter plate; the clean water area is arranged above the nano microcrystalline composite filter material layer; an effluent trough is arranged at the upper part of the clean water area; the buffer water distribution layer is communicated with a water intake pipe; the effluent trough is communicated with a water discharge tube; a plurality of long handle filter heads are evenly arranged at the bottom of the filter plate; the oxygenation aerator is communicated with an aeration pipe. The biological aerated filter disclosed by the utility model integrates filter layer adsorption, interception and biological membrane degradation functions, and can play a plurality of roles. Thus, the effluent quality is effectively improved; the biological aerated filter has efficient water treatment ability, and simultaneously is compact in structure and flexible to run. Therefore, the biological aerated filter has the advantages of being small in volume, high in effluent quality, simple in flow, low in investment cost, low in operation cost and the like.
Description
Technical field
The utility model relates to a kind of aeration and gives birth to filter tank.
Background technology
BAF is the New biological membrane method sewage treatment process that last century, late nineteen eighties grew up the America and Europe.This technique integrates bio-oxidation and holds back suspended solids, and volumetric loading, hydraulic load are large, and hydraulic detention time is short, and effluent quality is good, economic operating cost.Along with the continuous deterioration of source quality ammonia nitrogen index, water producing cost constantly increases, and numerous tap water supply enterprise faces immense pressure.By BAF, for tap water supply enterprise, will be the preferred plan addressed this problem.But there are a lot of defects in existing BAF, such as, see Fig. 2, the aeration head that is of the oxygenic aeration device of common BAF adopts hole membranes, the hole membranes aeration head is because certain service area only has a production well, in the long-play process of biological filter, be easy to by biological filter in dirt stop up, and cause in this aeration head coverage not having oxygen to be supplied with, if a plurality of aeration heads are blocked, easily cause whole oxygenic aeration device to damage.In addition, common oxygenic aeration device is on a long pipeline, to connect a plurality of aeration heads, when one of them aeration head damages, changes very trouble.The effect of strainer head is in the middle of the filter tank of water treatment, to play the purpose of water distribution and gas distribution, is the vitals of BAF water distribution and back flushing.See figure, 4, common strainer head or be to crack in top, to crack in side, the filter tank long-play easily causes the dirt that the gap of strainer head held back in filter tank or the microbial film come off to block, easily make filter tank produce water distribution, the inhomogeneous phenomenon of gas distribution, serious words can make filter tank lose effect.BAF due to the dirt of interception and the microbial film effect come off, increases head loss after operation for some time, affect treatment effect.Adopt boring aeration device to BAF to carry out back flushing with regard to needs this time.See Fig. 6, common boring aeration device is no matter the size of pond body all adopts the production well in single aperture, when the pond body is oversize, due to the loss along Cheng Fengtou, cause can't reaching away from the production well of gas blower air velocity and the flow of design, cause the filtrate of top, this position, filter tank to rinse unclean, and often air output and wind speed are greater than flow and the flow velocity of design near the production well of gas blower, long-play easily rushes the microbial film on filtrate, causes the filter tank operating performance bad.
The utility model content
The purpose of this utility model is to solve the problem that prior art exists, and provides that a kind of effluent characteristics is higher, the BAF of longer service life.
The technical scheme that realizes the utility model purpose is a kind of BAF, comprises the pond body; The pond body sets gradually filter plate, oxygenic aeration device, supporting layer and nano-crystallite composite filtering material layer from the bottom up, will between the body of pond, be separated out the buffering water distribution layer that is positioned at the filter plate below and the clear water zone that is positioned at nano-crystallite composite filtering material layer top thus; Described clear water zone top sets out tank; Described buffering water distribution layer is communicated with water inlet pipe; Described effluent trough is communicated with rising pipe; Described filter plate bottom even is installed a plurality of strainer heads; Described oxygenic aeration device is communicated with aeration tube.
Described oxygenic aeration device removably is connected in series and forms by a plurality of aeration units; Described aeration unit comprises air intake branch, upper pipe clamp, lower tube clip, fixed ring and porous membrane; Described upper pipe clamp and lower tube clip are semi-cylindrical shaped, and are fitted in respectively the both sides up and down of air intake branch; The two ends, left and right of described upper pipe clamp and lower tube clip are respectively by a fixed ring locking; Described air intake branch and upper pipe clamp are provided with the solarization air cap communicated; Described porous membrane is arranged between pipe clamp and air intake branch, and covers the solarization air cap on air intake branch; Described porous membrane is provided with a plurality of air outlets.
Air outlet on the porous membrane of the aeration unit of described oxygenic aeration device is strip.
The aeration unit of described oxygenic aeration device also comprises screw nipple; Described air intake branch and screw nipple are respectively arranged with internal thread and outside screw; One end of described screw nipple is connected with the threaded one end of air intake branch; The other end of described screw nipple is connected with the threaded one end of the air intake branch of another aeration unit.
Described strainer head comprises straight tube filter bar, filter cap and service sleeve; The bottom of described filter cap is fixedly connected with the top of straight tube filter bar; Described service sleeve removably is fixedly connected with the top of straight tube filter bar; The bottom of described straight tube filter bar is provided with a plurality of prosopyles, and middle part is provided with the bidirection air intake hole; The top of described filter cap and side are equipped with the air water outlet.
Straight tube filter bar and the filter cap of described strainer head are the integral type structure; Described filter cap top is semisphere.
The service sleeve of described strainer head is threaded with the top of straight tube filter bar; Between the bottom of described filter cap and service sleeve, be provided with rubber cradle; Described straight tube filter bar, filter cap and service sleeve all adopt the ABS engineering plastics to make.
Aforesaid a kind of BAF also comprises back flushing water inlet pipe, back flushing aeration tube, back flushing aerator and back flushing rising pipe; Described back flushing water inlet pipe is communicated with buffering water distribution layer; Described back flushing rising pipe is communicated with effluent trough; Described back flushing aerator is arranged at the below of strainer head; Described back flushing aeration tube is communicated with the back flushing aerator.
Described back flushing aerator comprises air intake branch, and is axially disposed within a plurality of micropores on air intake branch; One end of described air intake branch is for connecting gas blower; It is characterized in that: the aperture of described a plurality of micropores becomes large by the end near gas blower gradually to the end away from gas blower.
The blow-down pipe that aforesaid a kind of BAF also comprises the water outlet weir plate be arranged on the effluent trough inwall and is arranged at the water inlet pipe below and is communicated with buffering water distribution layer.
Adopted technique scheme, the utlity model has following beneficial effect: (1) BAF of the present utility model integrates filter tank absorption, filtering layer is held back and the microbial film Degradation, can bring into play multiple action, effectively increase water quality, has efficient water treatment capacity, the while compact construction, flexible operation, therefore have the advantages such as Chi Rongxiao, effluent characteristics is high, flow process is simple, cost of investment is few.
(2) nano microcrystalline filtrate of the present utility model inherent porosity is abundant, and pore size distribution is reasonable, so very firm after biofilm formation, difficult impaired because of back flushing, has guaranteed the stability of biological treatment.Because the nano microcrystalline filtrate specific surface area in filter tank is large, the microbial biomass in unit volume is many simultaneously, so there is stronger adaptability in filter tank to water quality, the water yield and temperature variation, the sudden water source exceeded standard of applicable water quality.
(3) porous membrane of oxygenic aeration device of the present utility model is provided with a plurality of air outlets, not only make gas distribution more even, effectively avoided because of a blocked problem that whole aeration unit was lost efficacy in hole, effectively extended work-ing life, and the bubble exposed is more small, make the oxygen transfer efficiency of air in water higher, save running cost.Aeration unit adopts the screw-type link simultaneously, and repair and replacement are more convenient.
(4) top of the filter cap of strainer head of the present utility model and side are equipped with the air water outlet, this structure can prevent effectively that not only filter from stopping up, and increased water distribution, the cloth airshed of single filter, and increased service area, the client is reduced investment outlay.The service sleeve of strainer head is threaded with the top of straight tube filter bar, and installation, convenient disassembly, be connected firmly, and can not come off, convenient management.Between the bottom of filter cap and service sleeve, be provided with rubber cradle, not only can play sealing function, and play shock absorption being subject to stepping on while touching, avoid occurring Fragmentation Phenomena, effectively increase the service life.The bar of straight tube filter simultaneously, filter cap and service sleeve all adopt the ABS engineering plastics to make, and bearing resistance is high.
(5) micropore of back flushing aerator of the present utility model adopts the gradual-change bore diameter design, aperture close to gas blower is little, aperture away from gas blower is large, make air-out flow and wind speed on each micropore reach balance, therefore can be applicable to the large size BAF, efficiently solve the deficiencies in the prior art.
(6) BAF flexible operation of the present utility model, water inlet, aeration, back flushing all can be controlled automatically, and the system automation degree is high, has reduced workman's labour intensity.Simultaneously due to COD
MnCertain removal is arranged, extended the work-ing life of gac, and can by biological action, reduce the Zeta potential of water-borne glue grain, make micelle more de-more steady, reduced the dosage of follow-up coagulating agent, and effluent quality is safer.
The accompanying drawing explanation
For content of the present utility model more easily is expressly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of common aeration head.
Fig. 3 is the structural representation of aeration unit of the present utility model.
Fig. 4 is the structural representation of common strainer head.
Fig. 5 is the structural representation of the utility model strainer head.
Fig. 6 is the structural representation of common boring aeration device.
Fig. 7 is the structural representation of back flushing aerator of the present utility model.
Attached number in the figure is:
Pond body 1, buffering water distribution layer 1-1, clear water zone 1-2, effluent trough 1-3, filter plate 2, oxygenic aeration device 3, air intake branch 3-1, upper pipe clamp 3-2, lower tube clip 3-3, fixed ring 3-4, porous membrane 3-5, air outlet 3-5-1, screw nipple 3-6, supporting layer 4, nano-crystallite composite filtering material layer 5, water inlet pipe 6, rising pipe 7, strainer head 8, straight tube filter bar 8-1, prosopyle 8-1-1, bidirection air intake hole 8-1-2, filter cap 8-2, air water outlet 8-2-1, service sleeve 8-3, aeration tube 9, back flushing water inlet pipe 10, back flushing aeration tube 11, back flushing aerator 12, air intake branch 12-1, micropore 12-2, back flushing rising pipe 13, water outlet weir plate 14, blow-down pipe 15.
Embodiment
(embodiment 1)
See Fig. 1, a kind of BAF of the present embodiment, comprise pond body 1; Pond body 1 sets gradually filter plate 2, oxygenic aeration device 3, supporting layer 4 and nano-crystallite composite filtering material layer 5 from the bottom up, thus 1 of pond body is separated out to the buffering water distribution layer 1-1 that is positioned at filter plate 2 belows and the clear water zone 1-2 that is positioned at nano-crystallite composite filtering material layer 5 top; Clear water zone 1-2 top sets out tank 1-3; Buffering water distribution layer 1-1 is communicated with water inlet pipe 6; Effluent trough 1-3 is communicated with rising pipe 7; Filter plate 2 bottom evens are installed a plurality of strainer heads 8; Oxygenic aeration device 3 is communicated with aeration tube 9; Back flushing water inlet pipe 10 is communicated with buffering water distribution layer 1-1; Back flushing rising pipe 13 is communicated with effluent trough 1-3; Back flushing aerator 12 is arranged at the below of strainer head 8; Back flushing aeration tube 11 is communicated with back flushing aerator 12.Water outlet weir plate 14 is arranged on effluent trough 1-3 inwall, and blow-down pipe 15 is arranged at water inlet pipe 6 belows and is communicated with buffering water distribution layer 1-1.The effect of water outlet weir plate 14 is that the clear water that guarantees clear water zone 1-2 slowly imports effluent trough 1-3, and does not have bubble inflow effluent trough 1-3.
See Fig. 3, oxygenic aeration device 3 removably is connected in series and forms by a plurality of aeration units; Aeration unit comprises air intake branch 3-1, upper pipe clamp 3-2, lower tube clip 3-3, fixed ring 3-4 and porous membrane 3-5; Upper pipe clamp 3-2 and lower tube clip 3-3 are semi-cylindrical shaped, and are fitted in respectively the both sides up and down of air intake branch 3-1; The two ends, left and right of upper pipe clamp 3-2 and lower tube clip 3-3 are respectively by a fixed ring 3-4 locking; Air intake branch 3-1 and upper pipe clamp 3-2 are provided with the solarization air cap communicated; Porous membrane 3-5 is arranged between pipe clamp 3-2 and air intake branch 3-1, and covers the solarization air cap on air intake branch 3-1; Porous membrane 3-5 is provided with a plurality of air outlet 3-5-1.Air outlet 3-5-1 on the porous membrane 3-5 of the aeration unit of oxygenic aeration device 3 is strip.The aeration unit of oxygenic aeration device 3 also comprises screw nipple 3-6; Air intake branch 3-1 and screw nipple 3-6 are respectively arranged with internal thread and outside screw; The end of screw nipple 3-6 is connected with the threaded one end of air intake branch 3-1; The other end of screw nipple 3-6 is connected with the threaded one end of the air intake branch 3-1 of another aeration unit.
See Fig. 5, strainer head 8 comprises straight tube filter bar 8-1, filter cap 8-2 and service sleeve 8-3; The bottom of filter cap 8-2 is fixedly connected with the top of straight tube filter bar 8-1; Service sleeve 8-3 removably is fixedly connected with the top of straight tube filter bar 8-1; The bottom of straight tube filter bar 8-1 is provided with a plurality of prosopyle 8-1-1, and middle part is provided with bidirection air intake hole 8-1-2; The top of filter cap 8-2 and side are equipped with air water outlet 8-2-1.Straight tube filter bar 8-1 and the filter cap 8-2 of strainer head 8 are the integral type structure; Filter cap 8-2 top is semisphere.The service sleeve 8-3 of strainer head 8 is threaded with the top of straight tube filter bar 8-1; Between the bottom of filter cap 8-2 and service sleeve 8-3, be provided with rubber cradle; Straight tube filter bar 8-1, filter cap 8-2 and service sleeve 8-3 all adopt the ABS engineering plastics to make.
See Fig. 7, back flushing aerator 12 comprises air intake branch 12-1, and is axially disposed within a plurality of micropore 12-2 on air intake branch 12-1; The end of air intake branch 12-1 is for connecting gas blower; It is characterized in that: the aperture of a plurality of micropore 12-2 becomes large by the end near gas blower gradually to the end away from gas blower.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a BAF, comprise pond body (1); It is characterized in that: pond body (1) sets gradually filter plate (2), oxygenic aeration device (3), supporting layer (4) and nano-crystallite composite filtering material layer (5) from the bottom up, will between pond body (1), be separated out the buffering water distribution layer (1-1) that is positioned at filter plate (2) below and the clear water zone (1-2) that is positioned at nano-crystallite composite filtering material layer (5) top thus; Described clear water zone (1-2) top sets out tank (1-3); Described buffering water distribution layer (1-1) is communicated with water inlet pipe (6); Described effluent trough (1-3) is communicated with rising pipe (7); Described filter plate (2) bottom even is installed a plurality of strainer heads (8); Described oxygenic aeration device (3) is communicated with aeration tube (9).
2. a kind of BAF according to claim 1, it is characterized in that: described oxygenic aeration device (3) removably is connected in series and forms by a plurality of aeration units; Described aeration unit comprises air intake branch (3-1), upper pipe clamp (3-2), lower tube clip (3-3), fixed ring (3-4) and porous membrane (3-5); Described upper pipe clamp (3-2) and lower tube clip (3-3) are semi-cylindrical shaped, and are fitted in respectively the both sides up and down of air intake branch (3-1); The two ends, left and right of described upper pipe clamp (3-2) and lower tube clip (3-3) are respectively by a fixed ring (3-4) locking; Described air intake branch (3-1) and upper pipe clamp (3-2) are provided with the solarization air cap communicated; Described porous membrane (3-5) is arranged between pipe clamp (3-2) and air intake branch (3-1), and covers the solarization air cap on air intake branch (3-1); Described porous membrane (3-5) is provided with a plurality of air outlets (3-5-1).
3. a kind of BAF according to claim 2 is characterized in that: the air outlet (3-5-1) on the porous membrane (3-5) of the aeration unit of described oxygenic aeration device (3) is strip.
4. a kind of BAF according to claim 3, it is characterized in that: the aeration unit of described oxygenic aeration device (3) also comprises screw nipple (3-6); Described air intake branch (3-1) and screw nipple (3-6) are respectively arranged with internal thread and outside screw; One end of described screw nipple (3-6) is connected with the threaded one end of air intake branch (3-1); The other end of described screw nipple (3-6) is connected with the threaded one end of the air intake branch (3-1) of another aeration unit.
5. a kind of BAF according to claim 1 is characterized in that: described strainer head (8) comprises straight tube filter bar (8-1), filter cap (8-2) and service sleeve (8-3); The bottom of described filter cap (8-2) is fixedly connected with the top of straight tube filter bar (8-1); Described service sleeve (8-3) removably is fixedly connected with the top of straight tube filter bar (8-1); The bottom of described straight tube filter bar (8-1) is provided with a plurality of prosopyles (8-1-1), and middle part is provided with bidirection air intake hole (8-1-2); The top of described filter cap (8-2) and side are equipped with air water outlet (8-2-1).
6. a kind of BAF according to claim 5 is characterized in that: straight tube filter bar (8-1) and the filter cap (8-2) of described strainer head (8) are the integral type structure; Described filter cap (8-2) top is semisphere.
7. a kind of BAF according to claim 6 is characterized in that: the service sleeve (8-3) of described strainer head (8) is threaded with the top of straight tube filter bar (8-1); Between the bottom of described filter cap (8-2) and service sleeve (8-3), be provided with rubber cradle; Described straight tube filter bar (8-1), filter cap (8-2) and service sleeve (8-3) all adopt the ABS engineering plastics to make.
8. a kind of BAF according to claim 1, is characterized in that: also comprise back flushing water inlet pipe (10), back flushing aeration tube (11), back flushing aerator (12) and back flushing rising pipe (13); Described back flushing water inlet pipe (10) is communicated with buffering water distribution layer (1-1); Described back flushing rising pipe (13) is communicated with effluent trough (1-3); Described back flushing aerator (12) is arranged at the below of strainer head (8); Described back flushing aeration tube (11) is communicated with back flushing aerator (12).
9. a kind of BAF according to claim 8, it is characterized in that: described back flushing aerator (12) comprises air intake branch (12-1), and is axially disposed within a plurality of micropores (12-2) on air intake branch (12-1); One end of described air intake branch (12-1) is for connecting gas blower; The aperture of described a plurality of micropore (12-2) becomes large by the end near gas blower gradually to the end away from gas blower.
10. according to the described a kind of BAF of one of claim 1 to 9, it is characterized in that: also comprise the blow-down pipe (15) that is arranged at the water outlet weir plate (14) on effluent trough (1-3) inwall and is arranged at water inlet pipe (6) below and is communicated with buffering water distribution layer (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202473104U CN203307111U (en) | 2013-05-06 | 2013-05-06 | Biological aerated filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202473104U CN203307111U (en) | 2013-05-06 | 2013-05-06 | Biological aerated filter |
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| Publication Number | Publication Date |
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| CN203307111U true CN203307111U (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202473104U Expired - Fee Related CN203307111U (en) | 2013-05-06 | 2013-05-06 | Biological aerated filter |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045206A (en) * | 2014-06-06 | 2014-09-17 | 南昌大学 | UV (ultraviolet)/O3+BAF (biological aerated filter) advanced oxidation sewage treatment facility |
| CN105884017A (en) * | 2016-06-16 | 2016-08-24 | 江苏正本净化节水科技实业有限公司 | Shallow aeration biological filter basin |
| CN106955513A (en) * | 2017-03-10 | 2017-07-18 | 福建工程学院 | A kind of Aerated gas-water back-impacting filter wash pond |
| CN108423804A (en) * | 2018-03-20 | 2018-08-21 | 鲁东大学 | A kind of iris type biological aerated filter |
| CN108623106A (en) * | 2018-07-19 | 2018-10-09 | 安徽华骐环保科技股份有限公司 | A kind of water treatment system and its processing method in situ in river |
| CN109019836A (en) * | 2018-08-10 | 2018-12-18 | 白玉梅 | A kind of biological aerated filter and its processing method of sewage treatment |
| CN110550754A (en) * | 2019-09-24 | 2019-12-10 | 浙江联池水务设备股份有限公司 | Membrane method sewage treatment system |
| CN110589961A (en) * | 2019-09-23 | 2019-12-20 | 浙江联池水务设备股份有限公司 | Biological contact oxidation filter |
| CN111825282A (en) * | 2020-08-07 | 2020-10-27 | 马鞍山奥柯环保科技发展有限公司 | Automatic aeration biological filter |
| CN112573649A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Nitrate radical wastewater treatment device and method |
| CN112573648A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Anoxic expanded bed device and method for treating high-concentration nitrate wastewater |
-
2013
- 2013-05-06 CN CN2013202473104U patent/CN203307111U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104045206A (en) * | 2014-06-06 | 2014-09-17 | 南昌大学 | UV (ultraviolet)/O3+BAF (biological aerated filter) advanced oxidation sewage treatment facility |
| CN105884017A (en) * | 2016-06-16 | 2016-08-24 | 江苏正本净化节水科技实业有限公司 | Shallow aeration biological filter basin |
| CN106955513B (en) * | 2017-03-10 | 2019-11-15 | 福建工程学院 | A kind of Aerated gas-water back-impacting filter wash pond |
| CN106955513A (en) * | 2017-03-10 | 2017-07-18 | 福建工程学院 | A kind of Aerated gas-water back-impacting filter wash pond |
| CN108423804A (en) * | 2018-03-20 | 2018-08-21 | 鲁东大学 | A kind of iris type biological aerated filter |
| CN108623106A (en) * | 2018-07-19 | 2018-10-09 | 安徽华骐环保科技股份有限公司 | A kind of water treatment system and its processing method in situ in river |
| CN109019836A (en) * | 2018-08-10 | 2018-12-18 | 白玉梅 | A kind of biological aerated filter and its processing method of sewage treatment |
| CN110589961A (en) * | 2019-09-23 | 2019-12-20 | 浙江联池水务设备股份有限公司 | Biological contact oxidation filter |
| CN110550754A (en) * | 2019-09-24 | 2019-12-10 | 浙江联池水务设备股份有限公司 | Membrane method sewage treatment system |
| CN110550754B (en) * | 2019-09-24 | 2022-04-01 | 浙江联池水务设备股份有限公司 | Membrane method sewage treatment system |
| CN112573649A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Nitrate radical wastewater treatment device and method |
| CN112573648A (en) * | 2019-09-29 | 2021-03-30 | 中国石油化工股份有限公司 | Anoxic expanded bed device and method for treating high-concentration nitrate wastewater |
| CN111825282A (en) * | 2020-08-07 | 2020-10-27 | 马鞍山奥柯环保科技发展有限公司 | Automatic aeration biological filter |
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