CN114538602A - Straight-through honeycomb filler biomembrane reaction system - Google Patents
Straight-through honeycomb filler biomembrane reaction system Download PDFInfo
- Publication number
- CN114538602A CN114538602A CN202210194437.8A CN202210194437A CN114538602A CN 114538602 A CN114538602 A CN 114538602A CN 202210194437 A CN202210194437 A CN 202210194437A CN 114538602 A CN114538602 A CN 114538602A
- Authority
- CN
- China
- Prior art keywords
- filler
- aeration
- reaction tank
- biofilm
- pore
- Prior art date
- 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.)
- Pending
Links
- 239000000945 filler Substances 0.000 title claims abstract description 77
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000011148 porous material Substances 0.000 claims abstract description 47
- 238000005273 aeration Methods 0.000 claims abstract description 43
- 239000012528 membrane Substances 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 27
- 230000032770 biofilm formation Effects 0.000 claims description 13
- 244000005700 microbiome Species 0.000 claims description 8
- 238000006396 nitration reaction Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 5
- 230000014759 maintenance of location Effects 0.000 claims description 4
- 239000010802 sludge Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 230000001413 cellular effect Effects 0.000 claims description 2
- 238000011001 backwashing Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 7
- 239000010865 sewage Substances 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a straight-through type honeycomb filler biomembrane reaction system, which comprises a reaction tank, wherein an aeration membrane is fixedly arranged at the bottom of the inner wall of the reaction tank, the bottom of the reaction tank is fixedly connected with an aeration pipe, one side of the reaction tank is fixedly connected with a water inlet pipe, the middle part of the inner wall of the reaction tank is filled with a filler, the appearance of the main body of the filler is a cuboid, a plurality of uniformly distributed honeycomb pore channels are arranged in a direction parallel to the axis of the cuboid, and the filler is arranged right above the aeration membrane; the invention utilizes the bottom aeration device to supply oxygen to the internal channel of the filler and simultaneously realize the backwashing effect, and due to the straight-through pore channel structure of the filler, the air water vertically rises through the pore channel to scrub the biomembrane attached on the pore channel and timely bring the aged biomembrane out of the pore channel, thereby completing the self-backwashing process in the operation process without adding extra backwashing equipment, and being economic and efficient.
Description
Technical Field
The invention relates to the field of sewage treatment, in particular to a straight-through honeycomb filler biomembrane reaction system.
Background
The biofilm method is a commonly used biological sewage treatment method, and the principle of the method is that microorganisms in a water body are attached to a filler or a carrier to grow and reproduce to form film-shaped sludge (biofilm), after the sewage is contacted with the biofilm, pollutants are adsorbed and converted by the microorganisms, and the sewage is purified. The filler is used as a carrier for attaching and fixing the biological membrane, and influences the treatment effect of the biological membrane. At present, biological ceramsite is mostly adopted at home and abroad as a biofilm carrier, and has the advantages of large specific surface area of ceramsite filler, high porosity and quick biofilm formation, and can quickly realize the sewage treatment effect in a short time and simultaneously has the function of intercepting suspended matters. However, the pores on the surface of the ceramsite filler are distributed unevenly, fine gaps exist among the fillers, so that the aged biomembrane is easy to cause filler blockage after long-time operation, backwashing is carried out by means of air-water scrubbing, a certain shearing force is formed by aeration or water flow disturbance to achieve the effect of removing the aged biomembrane, but the backwashing effect is poor, the defects of incomplete membrane removal and reduction of subsequent treatment capacity are easily caused, the energy consumption is increased, and the operation cost is higher.
Disclosure of Invention
The invention aims to provide a straight-through type honeycomb filler biomembrane reaction system to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a straight-through honeycomb filler biomembrane reaction system, includes the reaction tank, the bottom fixed mounting of reaction tank inner wall has the aeration membrane, the bottom fixedly connected with aeration pipe of reaction tank, one side fixedly connected with inlet tube of reaction tank, the middle part packing of reaction tank inner wall has the filler, the main part appearance of filler is the cuboid, and the cross section is regular square, and the cross-section that is on a parallel with cuboid axis direction is equipped with a plurality of evenly distributed's cellular pore.
As a further scheme of the invention: the operation stage of the system is divided into a biofilm formation stage and a nitrification treatment stage in sequence:
and (3) film forming stage: after the equipment is installed and the filler is added, water is fed, and the water inflow of the air is controlled, so that microorganisms are uniformly and effectively enriched in the pore canal of the filler, and a biofilm is formed; detecting the quality of inlet and outlet water during the biofilm formation, examining the removal condition of ammonia nitrogen, and completing the biofilm formation when the removal rate of ammonia nitrogen is stable;
a nitration treatment stage: after the biofilm formation is successful, maintaining hydraulic retention and keeping the concentration of dissolved oxygen in the reaction system stable, regulating aeration strength, measuring ammonia nitrogen in inlet water and outlet water, and calculating nitrification load to ensure that the system keeps higher nitrification load to continuously operate;
the honeycomb filler is used as a biological carrier, ammonia nitrogen in sewage is efficiently removed through efficient film hanging, and the oxygen utilization rate of a system is improved, so that higher nitrification load is kept.
As a further scheme of the invention: the filler is arranged right above the aeration membrane, and the distribution density of aeration pores of the aeration membrane is not lower than the distribution density of pore passages of the filler.
As a further scheme of the invention: the cross section of the pore channel is square or regular hexagon, the pore diameter is 1-10 mm, the pore channel is of a straight-through structure, and the surface of the inner wall of the pore channel is rough.
As a further scheme of the invention: the gas-water ratio in the filler is preferably 3:1, and the gas-water ratio is preferably 5:1-8:1 for the heavily polluted water body with the average concentration of the ammonia nitrogen in the inlet water being more than 25 mg/L.
Compared with the prior art, the invention has the beneficial effects that: the invention utilizes the bottom aeration device to supply oxygen to the internal channel of the filler and realize the backwashing effect; the aeration device is positioned right below the filler area, and due to the straight-through pore channel structure of the filler, air water vertically rises through the pore channel to scrub the biomembrane attached to the pore channel and timely bring the aged biomembrane out of the pore channel, so that the self-backwashing process is simultaneously completed in the running process, the iteration speed of the biomembrane in the filler is kept, and the blockage of the filler channel is avoided;
according to the aeration membrane pore and filler pore straight-through structure, the distribution density of the aeration membrane pores is not lower than that of the filler pore, so that each filler pore is provided with air, the gas transfer efficiency is greatly enhanced, aeration in the system is more uniform and sufficient, the transfer rate of the air in the system and the utilization rate of dissolved oxygen are improved, a separate backwashing system is not required to be added, economy and high efficiency are achieved, the nitrification load is continuously and stably kept at a high level by controlling the air-water ratio, and the high-efficiency operation of the whole system is kept.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view of A of FIG. 1 according to the present invention;
FIG. 3 is a graph showing the relationship between the gas-water ratio and the nitrification load in the nitrification treatment stage according to the embodiment of the present invention;
FIG. 4 is a graph showing the relationship between the gas-water ratio and the nitrification load at the stage of the comparative example nitrification treatment according to the present invention.
In the figure: 1. a reaction tank; 2. an aeration film; 3. a water inlet pipe; 4. an aeration pipe; 5. a filler; 6. a tunnel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a straight-through type honeycomb filler biofilm reaction system includes a reaction tank 1, an aeration membrane 2 is fixedly installed at the bottom of an inner wall of the reaction tank 1, an aeration pipe 4 is fixedly connected to the bottom of the reaction tank 1, a water inlet pipe 3 is fixedly connected to one side of the reaction tank 1, a filler 5 is filled in the middle of the inner wall of the reaction tank 1, the filler 5 has a rectangular main body, and a plurality of uniformly distributed honeycomb pores 6 are arranged in a direction parallel to an axis of the rectangular main body. The pore canal 6 is a straight-through structure, the surface of the inner wall of the pore canal 6 is rough, and the geometric surface area of the filler 5 is increased, which is beneficial to microorganism adhesion.
The filler 5 is arranged right above the aeration membrane 2, the pore distribution density of the aeration membrane 2 is not lower than the pore 6 distribution density of the filler 5, so that air enters each pore 6 to form a straight-through channel, the air can conveniently enter the filler 5, the high-efficiency operation of the whole system is kept by controlling the air-water ratio, the air-water ratio in the filler 5 is preferably 3:1, the air-water ratio is preferably 5:1-8:1 aiming at the heavily polluted water body with the average concentration of the intake ammonia nitrogen being more than 25mg/L, and the gas efficiently supplies oxygen to the biological membrane in the filler 5 through the straight-through structure of the filler 5, so that the high-efficiency utilization rate of the oxygen is ensured.
A straight-through type honeycomb filler biomembrane reaction system has an operation stage which is divided into a membrane hanging stage and a nitration treatment stage.
The type of the sewage to be treated is river sewage, the parameters of the water quality of the inlet water mainly comprise COD, ammonia nitrogen, total phosphorus and the like, and the water inflow of the river sewage is 10m3Ammonia nitrogen in feed water<30mg/L，COD<100mg/L, total phosphorus<3 mg/L. The water quality standard of the discharged water is designed to be ammonia nitrogen<2mg/L，COD<20mg/L, total phosphorus<0.3mg/L。
Examples
The straight-through honeycomb filler biomembrane reaction system provided by the invention is used for carrying out nitration treatment on the river sewage, and the biomembrane hanging is realized by adding the honeycomb filler 5, wherein the filler 5 is cubic, the pore canal 6 is in straight-through honeycomb distribution in structural form, and the pore diameter is 5 mm.
The aeration device provides oxygen for the reaction system, and the microorganisms carry out nitration reaction under aerobic condition to realize removal of ammonia nitrogen. The distribution density of the air holes of the aeration membrane 2 of the aeration device is not lower than that of the pore canals 6 of the filler 5.
Referring to fig. 3, the biofilm formation stage:
after the equipment is installed, adding filler 5 into the reaction tank 11, and after the filler 5 is added, performing air inlet and water inlet operations through the aeration pipe 4 and the water inlet pipe 3, wherein the water inlet amount is controlled to be 50-80% of the designed water inlet amount, and the air supply amount of the aeration operation is controlled to be 60-80% of the designed air supply amount. The water inflow is reduced at the initial stage of biofilm formation, and a certain time can be reserved for biofilm formation by the air inflow, so that microorganisms are uniformly and effectively enriched in the pore channels 6 of the filler 5, and the formation of the biofilm is promoted.
The distribution density of the air holes of the aeration membrane 2 is not lower than that of the pore canals 6 in the filler 5, so that air enters each pore canal 6, the purpose is to improve the uniformity and the sufficiency of aeration in the system, and the improvement of the transfer rate of the air in the system and the utilization rate of dissolved oxygen is facilitated. And detecting the quality of inlet and outlet water during the film formation, examining the removal condition of ammonia nitrogen, and considering that the film formation is successful when the removal rate of ammonia nitrogen is stable.
A nitration treatment stage:
and (3) entering a continuous operation stage after film formation is successful, maintaining the hydraulic retention time at 40-60min, and keeping the concentration of dissolved oxygen in the reaction system at 3-4 mg/L. The average concentration of the ammonia nitrogen in the inlet water is 25 mg/L. With the operation of the system, the most economical and efficient operation condition is determined by measuring ammonia nitrogen in inlet and outlet water and calculating nitrification load during the period by regulating and controlling different aeration intensities.
Adjusting the ratio of air to water to be more than 8:1, when the concentration of ammonia nitrogen in inlet water is low, the nitrification load is at a lower level, at the moment, the higher ratio of air to water is easy to scrub the inner pore canal 6 of the filler 5, so that the attachment time of the biological membrane is shorter, and the nitrification load cannot be at a stable level. Under the condition of high gas-water ratio, the straight-through type pore canal 6 in the filler 5 can cause excessive gas to quickly escape, so that unnecessary gas is wasted.
Adjusting the gas-water ratio within the range of 4:1-8:1, gradually increasing the ammonia nitrogen in the inlet water to be more than 30mg/L, enabling the ammonia nitrogen in the outlet water to reach the standard stably, and gradually increasing the nitrification load along with the increase of the ammonia nitrogen concentration in the inlet water to reach 1kg/m3High nitrification load.
Aiming at the low-pollution water body with the average concentration of the ammonia nitrogen in the inlet water being less than 25mg/L, the gas-water ratio is adjusted to be less than 4:1, and under the condition of low gas-water ratio, the system can keep the nitrification load at 0.4-0.5kg/m3The air quantity is reasonably controlled under the condition of meeting the standard requirement of water quality due to fluctuation within the range of x d, and the influence on the nitrification load caused by frequent falling of the biomembrane due to overlarge air quantity in the filler 5 is avoided.
Under different gas-water ratio conditions, the system can keep higher nitrification load, which is about 0.25-1.06 kg-m3D, average 0.65kg/m3*d。
The aeration device is located under the filler 5 region, due to the straight-through type pore channel 6 structure of the filler 5, air water is used for scrubbing attached biological membranes on the pore channel 6 through the vertical rising of the pore channel 6 and taking the aged biological membranes out of the pore channel 6 in time, the self-backwashing process is completed simultaneously in the running process, the blockage of the filler 5 channel is avoided while the iteration speed of the biological membranes inside the filler 5 is kept, the ammonia nitrogen pollutants in sewage are efficiently removed by utilizing the biological membranes quickly updated inside the filler 5, the backwashing mode is free from adding extra equipment or operation, and the device is economical and efficient.
Comparative example
Referring to fig. 4, compared with the embodiment, the difference of the nitrification treatment of the river sewage by using the reaction device provided by the present invention is that the honeycomb filler 5 in the embodiment is replaced by the traditional ceramsite filler, the aeration device provides oxygen for the reaction system, and the microorganisms perform nitrification reaction under the aerobic condition to remove ammonia nitrogen. The biofilm formation stage is the same as the embodiment, and the nitrification stage is carried out after the biofilm formation is finished.
A nitration treatment stage: and (4) entering a continuous operation stage after film formation is successful, maintaining the hydraulic retention time at 40-60min, and keeping the concentration of dissolved oxygen in the reaction system at 5-7 mg/L. Controlling the gas-water ratio to be 8:1, measuring ammonia nitrogen in inlet and outlet water during the operation period and calculating the nitrification load.
And (3) backwashing and demoulding: along with the proceeding of the nitration treatment stage, the aged biological membranes in the ceramsite filler are gradually increased, backwashing and demoulding are carried out by increasing aeration quantity, the aged biological membranes and sludge are sent into gaps of the ceramsite filler through air holes on the aeration membrane 2, and the aged biological membranes and sludge are continuously separated through the air-water rising process to finish the updating of the biological membranes.
In the comparative example, backwashing and membrane removal are carried out for 4 times within 30 days of operation, and the aeration rate is increased for backwashing and membrane removal when the nitrification load is obviously reduced or the concentration of the ammonia nitrogen in the inlet water is continuously increased. The nitrification load can be improved after backwashing and membrane removal, and the integral nitrification load is 0.26-0.78kg/m3D, average 0.52kg/m3D. The average ammonia nitrogen content of the effluent is 2.5mg/L, and the effluent exceeds the standard for many times. Therefore, as can be seen from the comparison with the examples,the adoption of ceramsite filler is easy to cause the condition of filler blockage, the aeration quantity needs to be increased for backwashing and demoulding, the energy consumption is high, the service life of the filler is influenced to a certain extent, and the removal effect of the system on ammonia nitrogen is further influenced.
Although the present invention has been described with reference to the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but is intended to cover various modifications, equivalents and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a straight-through honeycomb filler biomembrane reaction system, includes reaction tank (1), the bottom fixed mounting of reaction tank (1) inner wall has aeration membrane (2), the bottom fixedly connected with aeration pipe (4) of reaction tank (1), one side fixedly connected with inlet tube (3) of reaction tank (1), the middle part packing of reaction tank (1) inner wall has filler (5), its characterized in that, the main part appearance of filler (5) is the cuboid, is equipped with a plurality of evenly distributed's cellular pore (6) on a parallel with cuboid axis direction, fill (5) and arrange aeration membrane (2) directly over, the gas pocket distribution density of aeration membrane (2) is not less than the distribution density of pore (6).
2. A flow-through type honeycomb filler biomembrane reaction system as claimed in claim 1, wherein the operation stage is divided into a membrane formation stage and a nitrification stage in sequence;
and (3) film forming stage: after the equipment is installed and the filler (5) is added, water is fed, and the water inflow of the air is controlled, so that microorganisms are enriched in the pore channel (6) of the filler (5) and a biofilm is formed;
a nitration treatment stage: after the biofilm formation is successful, maintaining hydraulic retention and keeping the concentration of dissolved oxygen in the reaction system stable, calculating nitrification load by regulating aeration strength and measuring ammonia nitrogen in inlet and outlet water, and sending airflow introduced by an aeration pipe (4) into a pore channel (6) of a filler (5) through an air hole on an aeration membrane (2) during operation, wherein the aged biofilm and sludge continuously leave the interior of the filler (5) through an air-water rising process, thereby completing the updating of the biofilm.
3. A straight-through honeycomb filler biomembrane reaction system as claimed in claim 2, wherein the quality of inlet and outlet water is detected at the stage of biofilm formation, the removal of ammonia nitrogen is examined, and after the removal rate of ammonia nitrogen reaches a stable level, the completion of biofilm formation is judged.
4. A flow-through honeycomb packing biofilm reaction system according to claim 1, wherein the cross section of the cell channels (6) is square or regular hexagon, and the cell channels (6) are of a flow-through structure.
5. A flow-through honeycomb packing biofilm reaction system according to claim 4, wherein the pore diameter of the pore channel (6) is 1-10 mm.
6. A flow-through honeycomb packing biofilm reaction system according to claim 1, wherein the gas-water ratio inside the packing (5) is 3: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194437.8A CN114538602A (en) | 2022-03-01 | 2022-03-01 | Straight-through honeycomb filler biomembrane reaction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194437.8A CN114538602A (en) | 2022-03-01 | 2022-03-01 | Straight-through honeycomb filler biomembrane reaction system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114538602A true CN114538602A (en) | 2022-05-27 |
Family
ID=81662277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210194437.8A Pending CN114538602A (en) | 2022-03-01 | 2022-03-01 | Straight-through honeycomb filler biomembrane reaction system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114538602A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746879A (en) * | 2010-02-11 | 2010-06-23 | 黄昊 | Aeration biological filter bed and sewage advanced treatment method thereof |
| CN102754613A (en) * | 2011-04-25 | 2012-10-31 | 上海海洋大学 | Integrated circulating water culture system |
| KR20160114506A (en) * | 2015-03-24 | 2016-10-05 | 인제대학교 산학협력단 | Method for small medium size sewage advanced treatment using float media filtering |
| CN205773598U (en) * | 2016-07-13 | 2016-12-07 | 农业部沼气科学研究所 | A kind of micro power spacetabs type aeration structure |
| CN207918536U (en) * | 2017-12-19 | 2018-09-28 | 马鞍山市三环碧源水处理工程有限公司 | A kind of aerobic tank aeration cover |
-
2022
- 2022-03-01 CN CN202210194437.8A patent/CN114538602A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101746879A (en) * | 2010-02-11 | 2010-06-23 | 黄昊 | Aeration biological filter bed and sewage advanced treatment method thereof |
| CN102754613A (en) * | 2011-04-25 | 2012-10-31 | 上海海洋大学 | Integrated circulating water culture system |
| KR20160114506A (en) * | 2015-03-24 | 2016-10-05 | 인제대학교 산학협력단 | Method for small medium size sewage advanced treatment using float media filtering |
| CN205773598U (en) * | 2016-07-13 | 2016-12-07 | 农业部沼气科学研究所 | A kind of micro power spacetabs type aeration structure |
| CN207918536U (en) * | 2017-12-19 | 2018-09-28 | 马鞍山市三环碧源水处理工程有限公司 | A kind of aerobic tank aeration cover |
Non-Patent Citations (1)
| Title |
|---|
| 上海市政工程设计研究院: "《给水排水设计手册（第3册）城镇给水（第二版）》", 30 April 2004, 中国建筑工业出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101759324B (en) | Biological filter-ceramic membrane biological reactor device and water purifying application method thereof | |
| CN108996690B (en) | Biological reaction system based on flexible suspended filler and operation control method | |
| CN211035386U (en) | Aeration biological activity adsorption fluidized bed | |
| CN102964037B (en) | Novel sewage treatment method by combined utilization of light filter material biological aerated filter and heavy filter material biological aerated filter | |
| CN201077793Y (en) | Combination type biologic oxidation tower used for sewage water regeneration recycle device | |
| CN204151131U (en) | A kind of Anti-plugging biological aerated filter | |
| CN105271520A (en) | Annular biological aerated filter and application thereof | |
| CN112960762A (en) | Biological rotating cage water purification system driven by gravity flow water power | |
| CN201598221U (en) | Biofilter-ceramic membrane bioreactor | |
| CN205035139U (en) | Multimedium baffled biological aerated filter | |
| CN110156162A (en) | The micro- light bed biochemical treatment apparatus of one kind and sewage water treatment method | |
| CN114538602A (en) | Straight-through honeycomb filler biomembrane reaction system | |
| CN215161446U (en) | BAF aeration pipe | |
| CN213416406U (en) | Efficient, uniform and rapid water and gas distribution backwashing system of biological filter | |
| CN212476474U (en) | Device for degrading biochemical indexes of circulating water and sewage of thermal power plant | |
| CN214115250U (en) | Double-layer filter material denitrification reactor | |
| CN212269815U (en) | Sewage denitrification device | |
| CN213141529U (en) | Novel biological aerated filter | |
| CN110498509B (en) | High ammonia nitrogen sewage treatment device and sewage treatment method using same | |
| CN210795918U (en) | Granular sludge expanded bed reactor based on independent aeration tank | |
| CN105621612A (en) | High-efficiency biological aerated filter (BAF) device used for explosive wastewater treatment | |
| CN111995041A (en) | Device and method for removing nitrate in drinking water | |
| CN117623490B (en) | Wastewater treatment and back flushing method for micro-aerobic aeration biochemical filter tank | |
| CN213446724U (en) | Integrated equipment for degrading biochemical indexes of circulating water and sewage of thermal power plant | |
| CN218478613U (en) | Upward flow denitrification filter tank with external water distribution and air distribution chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220527 |