CN110386662B - Integrated combined aeration system suitable for MBBR technology and installation method - Google Patents
Integrated combined aeration system suitable for MBBR technology and installation method Download PDFInfo
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- CN110386662B CN110386662B CN201910755918.XA CN201910755918A CN110386662B CN 110386662 B CN110386662 B CN 110386662B CN 201910755918 A CN201910755918 A CN 201910755918A CN 110386662 B CN110386662 B CN 110386662B
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- 238000005273 aeration Methods 0.000 title claims abstract description 278
- 238000009434 installation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 22
- AHEWZZJEDQVLOP-UHFFFAOYSA-N monobromobimane Chemical compound BrCC1=C(C)C(=O)N2N1C(C)=C(C)C2=O AHEWZZJEDQVLOP-UHFFFAOYSA-N 0.000 title claims abstract 8
- 238000005516 engineering process Methods 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 5
- 230000000694 effects Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 3
- 239000004800 polyvinyl chloride Substances 0.000 claims description 3
- 238000009417 prefabrication Methods 0.000 claims description 3
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 claims description 3
- 239000010865 sewage Substances 0.000 abstract description 14
- 238000005243 fluidization Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
- C02F3/087—Floating beds with contact bodies having a lower density than water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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)
- Biological Treatment Of Waste Water (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses an integrated combined aeration system suitable for an MBBR process and an installation method, and belongs to the technical field of sewage treatment equipment. The sewage treatment device solves the technical problem that a sewage plant in the prior art cannot continuously run due to the installation of an aeration system. Including micropore aeration device, perforation aeration device and bottom fixing device, micropore aeration device includes micropore aeration riser, micropore aeration is responsible for, micropore aeration branch pipe, micropore aeration dish, micropore aeration is responsible for support and micropore aeration branch pipe support, and perforation aeration device includes perforation aeration riser, perforation aeration is responsible for, perforation aeration branch pipe, aeration hole, perforation aeration is responsible for support and perforation aeration branch pipe support, and bottom fixing device adopts square steel welding to form all around, and the welding has the angle steel between the square steel is horizontal, and micropore aeration support, perforation aeration support all connect on square steel and angle steel. The invention can realize the installation of the aeration system under the condition of short-time water cut-off of the sewage treatment plant.
Description
Technical Field
The invention belongs to the technical field of sewage treatment equipment, and particularly relates to an integrated combined aeration system suitable for an MBBR (moving bed biofilm reactor) process and an installation method.
Background
In order to improve the removal effect of pollutants in sewage, many sewage treatment plants adopt an MBBR technology, microorganisms are attached by adding suspended biomembrane carriers into a biological tank, the removal rate of the pollutants is improved, and a microporous aeration device is required to be arranged in the biological tank in order to provide oxygen required by the microorganisms for removing the pollutants; in order to ensure that the suspended biofilm carriers are sufficiently fluidized, a perforated aeration device is required to be arranged in the biological pond. The single installation of the microporous aeration system or the perforated aeration system in the biological tank cannot meet the requirement of the normal operation of the MBBR process, so that the microporous aeration system and the perforated aeration system are required to be installed simultaneously.
The sewage plant generally has the special problems of short water cut-off time and short construction period, and in order to ensure the continuous production requirement of the sewage plant, the traditional single aeration device cannot meet the construction period requirement, so that the operation of the sewage plant is adversely affected.
Disclosure of Invention
The invention aims to provide an integrated combined aeration system suitable for an MBBR process and an installation method, which can realize the installation of the aeration system under the condition of short-time water cut-off of a sewage treatment plant.
One of the tasks of the invention is to provide an integrated combined aeration system suitable for an MBBR process, which adopts the following technical scheme:
the integrated combined aeration system suitable for the MBBR process comprises a microporous aeration device, a perforated aeration device and a bottom fixing device, wherein the microporous aeration device comprises a microporous aeration vertical pipe, a microporous aeration main pipe, a microporous aeration branch pipe, a microporous aeration disc, a microporous aeration main pipe support and a microporous aeration branch pipe support, the microporous aeration branch pipes are arranged on two sides of the microporous aeration main pipe, the microporous aeration disc is arranged on the microporous aeration branch pipe at equal intervals, and the microporous aeration main pipe and the microporous aeration branch pipe are respectively clamped on the microporous aeration main pipe support and the microporous aeration branch pipe support;
the perforated aeration device comprises a perforated aeration vertical pipe, a perforated aeration main pipe, a perforated aeration branch pipe, aeration holes, a perforated aeration main pipe support and a perforated aeration branch pipe support, wherein the perforated aeration branch pipes are arranged on two sides of the perforated aeration main pipe, the aeration holes are arranged on the perforated aeration branch pipes at equal intervals, and the perforated aeration main pipe and the perforated aeration branch pipes are respectively clamped on the perforated aeration main pipe support and the perforated aeration branch pipe support;
the whole bottom fixing device is a cuboid, four sides of the bottom fixing device are formed by welding square steel, the bottoms of four corners are provided with bases, angle steel is welded between the square steel and the transverse direction, and the microporous aeration support and the perforated aeration support are connected to the square steel and the angle steel;
the aeration holes are round, the diameter is 4mm to 8mm, and the center distance between adjacent aeration holes is 70mm to 200mm.
The technical scheme directly brings the following beneficial technical effects:
the invention combines the microporous aeration device and the perforation aeration device into a system, and simultaneously realizes that micropores provide oxygen and perforation to ensure fluidization of the suspended biological film carrier; the microporous aeration device and the perforated aeration device adopt an integrated combination mode, so that the installation can be completed outside the tank, the installation in the tank can be completed after the water is stopped for a short time, and the installation period is shortened; or can combine guide arm and slide rail, realize but the lifting means, can install or overhaul when not cutting off water, guaranteed the continuous operation of sewage plant.
In a preferred embodiment of the present invention, the perforated aeration device is located above the microporous aeration device, and a difference in height between the center of the perforated aeration main pipe and the center of the microporous aeration main pipe is 150mm to 350mm.
The perforated aeration device is arranged in the cross installation of the microporous aeration device.
As another preferable mode of the invention, the aeration holes are downward and form an angle of 0-60 degrees with the vertical direction.
Furthermore, the microporous aeration main pipe and the microporous aeration branch pipe are made of UPVC materials, and the perforated aeration main pipe and the perforated aeration branch pipe are made of ABS resin or hard polyvinyl chloride materials.
Further, the opening hole diameter of the aeration holes is increased regularly as the distance from the perforated aeration vertical pipe is increased.
Another task of the present invention is to provide the installation method of the integrated combined aeration system suitable for the MBBR process, which sequentially comprises the following steps:
a. the bottom fixing device is placed on a flat ground after prefabrication is completed;
b. installing the prefabricated microporous aeration device above the bottom fixing device, and fixing the microporous aeration device on the bottom fixing device by using a microporous aeration bracket;
c. the prefabricated perforated aeration device is installed above the microporous aeration device in a crossing way, and the perforated aeration device is fixed on the bottom fixing device by a perforated aeration bracket;
d. hoisting the integrated combined aeration system into the MBBR biochemical tank by using a hoisting machine, and slowly lowering the integrated combined aeration system to the bottom of the MBBR biochemical tank;
e. and (3) introducing air of the aeration main pipe positioned at the top into the integrated combined aeration system, and thus finishing the installation.
Compared with the prior art, the invention has the following beneficial technical effects:
(1) The diameter of the aeration holes on the aeration branch pipe, the center distance between adjacent aeration holes and the orientation of the aeration holes of the perforated aeration device can be changed according to the filling rate of the suspended biological film carrier of a specific project, thereby ensuring the fluidization effect of the suspended biological film carrier.
(2) The integrated combined aeration system is detachable and convenient to transport, is assembled on site during installation after the prefabrication processing of a factory is completed, is simple in flow, shortens the installation period and reduces the construction cost.
(3) According to the perforated aeration device, the aeration holes are arranged on the aeration branch pipes at equal intervals, so that the uniform fluidization effect of the filler is ensured, and the filler accumulation is avoided.
(4) The aeration holes of the perforated aeration device have different angles at different positions, and the opening angle can be adjusted according to the water flow direction, so that the aeration effect is improved.
(5) The bottom fixing device is made of stainless steel, rectangular bases are symmetrically arranged below four corners, a middle position and the like, and the bottom fixing device has supporting and fixing functions on the integrated combined aeration system.
(6) The farther the perforated aeration branch pipe of the perforated aeration device is from the perforated aeration vertical pipe, the opening diameter of the aeration holes is regularly increased, and the aeration effect of the far end is ensured.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a plan view of an integrated composite aeration system of the present invention;
FIG. 2 is a cross-sectional view of an integrated composite aeration system of the present invention;
FIG. 3 is a plan view of the microporous aeration device of the present invention;
FIG. 4 is a plan view of a perforated aeration apparatus of the present invention;
FIG. 5 is a plan view of the bottom fixture of the present invention;
in the figure, 1, a microporous aeration main pipe, 2, a microporous aeration branch pipe, 3, a microporous aeration disc, 4, a microporous aeration main pipe support, 5, a microporous aeration branch pipe support, 6, a perforated aeration main pipe, 7, a perforated aeration branch pipe, 8, aeration holes, 9, a perforated aeration main pipe support, 10, a perforated aeration branch pipe support, 11, square steel, 12, angle steel, 13 and a base.
Detailed Description
The invention provides an integrated combined aeration system suitable for an MBBR process and an installation method, and in order to make the advantages and the technical scheme of the invention clearer and more definite, the invention is described in detail below with reference to specific embodiments.
The integrated combined aeration system provided by the invention has the advantages that the microporous aeration device and the perforated aeration device are combined together, and compared with the independent microporous aeration device and the independent perforated aeration device in the prior art, the integrated combined aeration system provided by the invention can provide enough dissolved oxygen for microorganisms and ensure uniform fluidization of suspended carrier biological films; meanwhile, the installation flow is simple, the installation cost is reduced, the installation period is shortened, and the installation and the maintenance are convenient.
Referring to fig. 1 to 5, the invention discloses an integrated combined aeration system suitable for an MBBR process, which comprises a microporous aeration device, a perforated aeration device and a bottom fixing device, wherein the microporous aeration device comprises a microporous aeration vertical pipe, a microporous aeration main pipe 1, microporous aeration branch pipes 2, a microporous aeration disc 3, a microporous aeration main pipe support 4 and a microporous aeration branch pipe support 5, the microporous aeration branch pipes 2 are arranged on two sides of the microporous aeration main pipe 1, the microporous aeration disc 3 is arranged on the microporous aeration branch pipes 2 at equal intervals, and the microporous aeration main pipe 1 and the microporous aeration branch pipes 2 are respectively clamped on the microporous aeration main pipe support 4 and the microporous aeration branch pipe support 5;
the perforation aeration device comprises a perforation aeration vertical pipe, a perforation aeration main pipe 6, a perforation aeration branch pipe 7, aeration holes 8, a perforation aeration main pipe support 9 and a perforation aeration branch pipe support 10, wherein the perforation aeration branch pipe 7 is installed on two sides of the perforation aeration main pipe 6, aeration holes are arranged on the perforation aeration branch pipe 7 at equal intervals, the aeration holes are preferably circular, the diameters of the aeration holes are 4mm to 8mm, the center distances of adjacent aeration holes are 70mm to 200mm, and the purpose of the arrangement is that: the aeration quantity of the perforated aeration pipe is controlled, and the aeration effect is ensured.
The perforated aeration main pipe and the perforated aeration branch pipe are respectively clamped on the perforated aeration main pipe bracket and the perforated aeration branch pipe bracket;
the whole bottom fixing device is cuboid, adopts square steel 11 to weld all around and forms, and base 13 is installed to the bottom at four angles, and the welding has angle steel 12 between the square steel is horizontal, and micropore aeration support, perforation aeration support are all connected on square steel and angle steel.
The invention preferably has the perforated aeration branch pipe with the aeration holes facing downwards and forming an angle of 0-60 degrees with the vertical direction, and the aim of the invention is that: the opening angle can be adjusted according to the water flow direction, so that the resistance is reduced, and the aeration effect is improved.
The invention is preferably made of UPVC material for microporous aeration main pipe and microporous aeration branch pipe, and the perforated aeration main pipe and perforated aeration branch pipe are made of ABS resin or hard polyvinyl chloride material, with the purpose of: the microporous aeration pipe and the perforated aeration pipe are relatively low in material price, light in weight and corrosion-resistant, and can ensure longer service life in sewage.
The perforated aeration device is arranged above the microporous aeration device, and the height difference between the center of the perforated aeration main pipe and the center of the microporous aeration main pipe is 150mm to 350mm. When the distance from the perforated aeration vertical pipe is further and further, the diameters of the openings of the aeration holes on the perforated aeration branch pipes are regularly increased.
The invention provides a method for installing an integrated combined aeration system suitable for an MBBR process, which specifically comprises the following steps:
step one, prefabricating a microporous aeration device, a perforation aeration device and a bottom fixing device outside a sewage treatment pool in advance;
installing the prefabricated microporous aeration device above the bottom fixing device, and fixing the microporous aeration device on the bottom fixing device by using a microporous aeration bracket;
step three, the prefabricated perforated aeration devices are installed above the microporous aeration devices in a crossing way, and are fixed on the bottom fixing device through perforated aeration brackets, and the center of the perforated aeration main pipe is ensured to be 150mm to 350mm above the center of the microporous aeration main pipe by adjusting the heights of the perforated aeration brackets;
hoisting the integrated combined aeration system into the MBBR biochemical tank by using a hoisting machine, and slowly lowering the integrated combined aeration system to a designated position at the bottom of the MBBR biochemical tank;
and fifthly, introducing air of the aeration main pipe positioned at the top into the integrated combined aeration system, and finishing installation.
The parts not described in the above modes can be realized by adopting or referring to the prior art.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The specific embodiments described herein are offered by way of illustration only, and are not intended to limit the scope of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (4)
1. An integral type combination aeration system suitable for MBBR technology, its include micropore aeration device, perforation aeration device and bottom fixing device, its characterized in that:
the microporous aeration device comprises a microporous aeration vertical pipe, a microporous aeration main pipe, a microporous aeration branch pipe, a microporous aeration disc, a microporous aeration main pipe support and a microporous aeration branch pipe support, wherein the microporous aeration branch pipes are arranged at two sides of the microporous aeration main pipe, the microporous aeration disc is arranged on the microporous aeration branch pipes at equal intervals, and the microporous aeration main pipe and the microporous aeration branch pipes are respectively clamped on the microporous aeration main pipe support and the microporous aeration branch pipe support;
the perforated aeration device comprises a perforated aeration vertical pipe, a perforated aeration main pipe, a perforated aeration branch pipe, aeration holes, a perforated aeration main pipe support and a perforated aeration branch pipe support, wherein the perforated aeration branch pipes are arranged on two sides of the perforated aeration main pipe, the aeration holes are arranged on the perforated aeration branch pipes at equal intervals, and the perforated aeration main pipe and the perforated aeration branch pipes are respectively clamped on the perforated aeration main pipe support and the perforated aeration branch pipe support;
the whole bottom fixing device is a cuboid, four sides of the bottom fixing device are formed by welding square steel, the bottoms of four corners are provided with bases, angle steel is welded between the square steel and the transverse direction, and the microporous aeration support and the perforated aeration support are connected to the square steel and the angle steel;
the aeration holes are round, the diameter is 4mm to 8mm, and the center distance between adjacent aeration holes is 70mm to 200mm;
the perforated aeration device is positioned above the microporous aeration device, and the height difference between the center of the perforated aeration main pipe and the center of the microporous aeration main pipe is 150-350 mm;
the perforation aeration device and the micropore aeration device are installed in a crossing way;
the aeration holes are downward in direction and form an angle of 0-60 degrees with the vertical direction, the aeration holes are different in angle at different positions, the opening angle is adjusted according to the water flow direction, and the aeration effect is improved.
2. An integrated combined aeration system suitable for MBBR processes according to claim 1, wherein: the microporous aeration main pipe and the microporous aeration branch pipe are made of UPVC materials, and the perforated aeration main pipe and the perforated aeration branch pipe are made of ABS resin or hard polyvinyl chloride materials.
3. An integrated combined aeration system suitable for MBBR processes according to claim 1, wherein: and when the distance from the perforated aeration vertical pipe is longer, the aperture of the opening of the aeration hole is increased regularly.
4. A method of installing an integrated combined aeration system suitable for use in MBBR processes according to any of claims 1-3, comprising the following steps in order:
a. the bottom fixing device is placed on a flat ground after prefabrication is completed;
b. installing the prefabricated microporous aeration device above the bottom fixing device, and fixing the microporous aeration device on the bottom fixing device by using a microporous aeration bracket;
c. the prefabricated perforated aeration device is installed above the microporous aeration device in a crossing way, and the perforated aeration device is fixed on the bottom fixing device by a perforated aeration bracket;
d. hoisting the integrated combined aeration system into the MBBR biochemical tank by using a hoisting machine, and slowly lowering the integrated combined aeration system to the bottom of the MBBR biochemical tank;
e. and (3) introducing air of the aeration main pipe positioned at the top into the integrated combined aeration system, and thus finishing the installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910755918.XA CN110386662B (en) | 2019-08-16 | 2019-08-16 | Integrated combined aeration system suitable for MBBR technology and installation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910755918.XA CN110386662B (en) | 2019-08-16 | 2019-08-16 | Integrated combined aeration system suitable for MBBR technology and installation method |
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| CN110386662A CN110386662A (en) | 2019-10-29 |
| CN110386662B true CN110386662B (en) | 2023-11-24 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109052649B (en) * | 2018-10-31 | 2023-08-29 | 青岛思普润水处理股份有限公司 | Micro-power mixed sewage treatment device |
| CN112723566A (en) * | 2020-12-31 | 2021-04-30 | 杭州市环境集团有限公司 | BAF aeration pipe and method for removing COD through BAF denitrification |
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| CN202022791U (en) * | 2011-05-09 | 2011-11-02 | 宁波永峰环保工程科技有限公司 | Aerobic biological reactor applied to sewage treatment |
| JP2016028806A (en) * | 2014-07-15 | 2016-03-03 | 三菱レイヨン株式会社 | Air diffuser, and water treatment apparatus and method for operating the same |
| CN106045012A (en) * | 2016-07-13 | 2016-10-26 | 农业部沼气科学研究所 | Micropower slow-release type aeration structure and method |
| CN206457307U (en) * | 2017-02-19 | 2017-09-01 | 青岛聚邦环境科技股份有限公司 | A kind of aeration device |
| CN206511981U (en) * | 2016-12-13 | 2017-09-22 | 北京海斯顿水处理设备有限公司 | A kind of small-sized biological membrane reactor |
-
2019
- 2019-08-16 CN CN201910755918.XA patent/CN110386662B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202022791U (en) * | 2011-05-09 | 2011-11-02 | 宁波永峰环保工程科技有限公司 | Aerobic biological reactor applied to sewage treatment |
| JP2016028806A (en) * | 2014-07-15 | 2016-03-03 | 三菱レイヨン株式会社 | Air diffuser, and water treatment apparatus and method for operating the same |
| CN106045012A (en) * | 2016-07-13 | 2016-10-26 | 农业部沼气科学研究所 | Micropower slow-release type aeration structure and method |
| CN206511981U (en) * | 2016-12-13 | 2017-09-22 | 北京海斯顿水处理设备有限公司 | A kind of small-sized biological membrane reactor |
| CN206457307U (en) * | 2017-02-19 | 2017-09-01 | 青岛聚邦环境科技股份有限公司 | A kind of aeration device |
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