CN104556361A - Low-intensity ultrasonic synergistic aeration device - Google Patents
Low-intensity ultrasonic synergistic aeration device Download PDFInfo
- Publication number
- CN104556361A CN104556361A CN201310473180.0A CN201310473180A CN104556361A CN 104556361 A CN104556361 A CN 104556361A CN 201310473180 A CN201310473180 A CN 201310473180A CN 104556361 A CN104556361 A CN 104556361A
- Authority
- CN
- China
- Prior art keywords
- low intensity
- intensity ultrasound
- air cell
- solarization air
- coordination
- 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
- 238000005273 aeration Methods 0.000 title claims abstract description 38
- 230000002195 synergetic effect Effects 0.000 title abstract 5
- 239000010802 sludge Substances 0.000 claims abstract description 25
- 238000002604 ultrasonography Methods 0.000 claims description 45
- 239000006185 dispersion Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 244000005700 microbiome Species 0.000 claims description 15
- 238000000605 extraction Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 34
- 230000000694 effects Effects 0.000 abstract description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 14
- 229910052760 oxygen Inorganic materials 0.000 abstract description 14
- 239000001301 oxygen Substances 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 11
- 238000004090 dissolution Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 19
- 239000010865 sewage Substances 0.000 description 13
- 230000002906 microbiologic effect Effects 0.000 description 11
- 238000002525 ultrasonication Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 208000010086 Hypertelorism Diseases 0.000 description 1
- 206010020771 Hypertelorism of orbit Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000007483 microbial process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- 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
- Treatment Of Sludge (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention relates to a low-intensity ultrasonic synergistic aeration device. The low-intensity ultrasonic synergistic aeration device comprises an aeration chamber (1) and the bottom of the aeration chamber (1) is provided with an aeration device (6). The low-intensity ultrasonic synergistic aeration device is characterized in that a low-intensity ultrasonic generator (5) is arranged in the aeration chamber (1) and is located above the aeration device (6). The low-intensity ultrasonic synergistic aeration device utilizes a low-intensity ultrasonic technology, utilizes turbulence effects and interface effects of the ultrasonic technology to reinforce an oxygen mass transfer and dissolution process, improves aeration efficiency of the microbe aerobic aeration device, and improves aeration efficiency and sludge activity by reasonable selection of ultrasonic operation parameters.
Description
Technical field
The present invention relates to the aerating apparatus in sewage aerobic micro-organism treatment process, is that a kind of low intensity ultrasound works in coordination with aerating apparatus specifically.Described low intensity ultrasound works in coordination with aerating apparatus for aerobic activated sludge treatment process.
Background technology
Water pollutions is the great survivability problem of facing mankind, and sewage water treatment method can be divided into physical method, chemical process and microbial process usually.Wherein sewage microbiological treatment technology compares Physical or chemical method has the advantages such as processing cost is low, simple to operate, its range of application is more and more extensive, utilizing microbiological treatment to make resource regeneration, is all one of main path of sewage disposal now or in the future.
By to oxygen demand situation, sewage microbiological treatment technology can be divided into anaerobion process and the large class of aerobic microbiological process two.Wherein, aerobic microbiological treatment technology refers under free oxygen (molecular oxygen) existent condition, aerobic microbiological is inorganics by katabolism, anabolism and material mineralising etc. the organic pollutant oxygenolysis in environment, thus the technology that sewage is purified.
A fundamental of aerobic microbiological process is exactly dissolved oxygen, and the height of dissolved oxygen concentration limits the processing power of aerobic microbiological facture.In typical sewage work, aeration expense often accounts for more than 60% of working cost, and the quality of aeration directly determines energy consumption and the treatment effect of aerobic microbiological facture.Exploitation high efficient aeration equipment, reduces energy consumption as far as possible and has great economic benefit and environment protection significance under the prerequisite ensureing dissolved oxygen demand.
Summary of the invention
For the defect existed in prior art, a kind of low intensity ultrasound is the object of the present invention is to provide to work in coordination with aerating apparatus, this aerating apparatus is used for sewage aerobic microbiological treatment, by introducing low intensity ultrasound technology in aerating apparatus, utilize the turbulence effect of ultrasonic technique, the mass transfer dissolution process of interfacial effect enriched with oxygen, improve the aeration efficiency of microorganism aerobic aerating apparatus; Simultaneously by the operating parameters of choose reasonable ultrasonication, while lifting aeration efficiency, promote sludge activity.
For reaching above object, the technical scheme that the present invention takes is:
A kind of low intensity ultrasound works in coordination with aerating apparatus, and comprise solarization air cell 1, the bottom of solarization air cell 1 is provided with aerating apparatus 6, it is characterized in that: be also provided with low intensity ultrasound wave producer 5 in solarization air cell 1, and low intensity ultrasound wave producer 5 is positioned at the top of aerating apparatus 6.
On the basis of technique scheme, solarization air cell 1 is connected to the bottom of microorganism aerobic treatment system by the solarization air cell's water inlet pipe 4 being provided with pipeline valve 3, and microorganism aerobic treatment system feed-water end is connected to solarization air cell 1 by the solarization air cell's mud extraction pipeline 8 being provided with sludge reflux pump 2.
On the basis of technique scheme, described aerating apparatus 6 comprises some gas dispersion apparatus 7, and gas dispersion apparatus 7 is connected with air compressor machine by airline.
On the basis of technique scheme, described gas dispersion apparatus 7 is boring aeration pipes, micro porous aeration head or other play the device of same purpose.
On the basis of technique scheme, directly over gas dispersion apparatus 7, be evenly arranged low intensity ultrasound wave producer 5.
On the basis of technique scheme, spacing 5 ~ 15cm between gas dispersion apparatus 7 and low intensity ultrasound wave producer 5.
On the basis of technique scheme, low intensity ultrasound wave producer 5 comprises: controller and transverter,
Directly over gas dispersion apparatus 7, be evenly arranged transverter,
It is outside that controller is arranged at solarization air cell 1,
Be connected by wire between transverter with controller,
Wire is positioned at the part waterproof sealing of solarization air cell 1.
On the basis of technique scheme, described transverter is waterproof type transverter.
On the basis of technique scheme, the frequency that described low intensity ultrasound wave producer 5 adopts is between 20-27kHz, and power input is between 10-20W/L.
Low intensity ultrasound of the present invention works in coordination with aerating apparatus, this aerating apparatus is used for sewage aerobic microbiological treatment, by introducing low intensity ultrasound technology in aerating apparatus, utilize the turbulence effect of ultrasonic technique, the mass transfer dissolution process of interfacial effect enriched with oxygen, improve the aeration efficiency of microorganism aerobic aerating apparatus; Simultaneously by the operating parameters of choose reasonable ultrasonication, while lifting aeration efficiency, promote sludge activity.
Low intensity ultrasound of the present invention works in coordination with aerating apparatus, technique is simple, be easy to realize, low intensity ultrasound effect combined with the aeration process of aerobic sludge, not only can promote sludge activity under the condition of preferred low intensity ultrasound operational factors, and ultrasonication can be utilized to promote the effect of mass transfer, increase mass transfer area, accelerate oxygen dissolution speed, improve aeration efficiency, reduce aeration cost, thus significantly improve the processing efficiency of microorganism aerobic treatment system, and save running cost.
Accompanying drawing explanation
The present invention has following accompanying drawing:
Fig. 1 low intensity ultrasound works in coordination with the structural representation of aerating apparatus.
Reference numeral:
1 solarization air cell; 2 sludge reflux pumps; 3 pipeline valves; 4 solarization air cell's water inlet pipes; 5 low intensity ultrasound wave producers; 6 aerating apparatuss; 7 gas dispersion apparatus; 8 solarization air cell's mud extraction pipelines.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Ultrasonic technique is the new and high technology grown up in 20th century, and ultrasonication can produce various effect in two-phase or multiphase system, as cavitation effect, turbulence effect, perturbation effect, interfacial effect and cavity effect etc.Wherein interfacial effect can increase mass transfer surfaces amass, turbulence effect makes frictional belt thinning, increase rate of mass transfer.Ultrasonic technique is introduced aerating apparatus by the present invention, utilizes it to increase interphase mass transfer surface, increases the effect of rate of mass transfer, greatly improve aeration efficiency; The operating parameters of choose reasonable ultrasonication simultaneously, achieves advantageous effects such as increasing bacteria metabolism, increase enzymic activity, increase cell permeability, thus promotes sludge activity.
As shown in Figure 1, low intensity ultrasound of the present invention works in coordination with aerating apparatus, comprises solarization air cell 1, and the bottom of solarization air cell 1 is provided with aerating apparatus 6,
Low intensity ultrasound wave producer 5 is also provided with in solarization air cell 1,
Low intensity ultrasound wave producer 5 is positioned at the top of aerating apparatus 6.
On the basis of technique scheme, solarization air cell 1 is connected to the bottom of microorganism aerobic treatment system by the solarization air cell's water inlet pipe 4 being provided with pipeline valve 3,
Microorganism aerobic treatment system feed-water end is connected to solarization air cell 1 by the solarization air cell's mud extraction pipeline 8 being provided with sludge reflux pump 2.
On the basis of technique scheme, described aerating apparatus 6 comprises some gas dispersion apparatus 7, and gas dispersion apparatus 7 is connected with air compressor machine by airline.
According to actual needs, some (one or more groups) gas dispersion apparatus 7 can be set bottom solarization air cell for aeration, described gas dispersion apparatus can be boring aeration pipe, micro porous aeration head or other play the device of same purpose; Gas dispersion apparatus is by air compressor machine air feed.
On the basis of technique scheme, directly over gas dispersion apparatus 7, be evenly arranged low intensity ultrasound wave producer 5, optimal placement scheme is lay low intensity ultrasound wave producer 5 correspondingly.
On the basis of technique scheme, spacing 5 ~ 15cm between gas dispersion apparatus 7 and low intensity ultrasound wave producer 5.Described spacing specifically refers to: the distance between gas dispersion apparatus 7 place level height (horizontal plane) and low intensity ultrasound wave producer 5 place level height (horizontal plane), i.e. vertical range, limits this spacing and considers for two aspects: hypertelorism or the declines that excessively closely ultrasonic promotion gas liquid interfacial area all may be caused to strengthen.
On the basis of technique scheme, low intensity ultrasound wave producer 5 comprises: controller (power supply and state modulator parts) and transverter (ultrasonic wave generation part),
Directly over gas dispersion apparatus 7, be evenly arranged transverter,
It is outside that controller is arranged at solarization air cell 1,
Be connected by wire between transverter with controller,
Wire is positioned at the part waterproof sealing of solarization air cell 1.
On the basis of technique scheme, described transverter is waterproof type transverter.
On the basis of technique scheme, the frequency that described low intensity ultrasound wave producer 5 adopts is between 20-27kHz, and power input is between 10-20W/L.
On the basis of technique scheme, the shape of described solarization air cell 1, according to easy to operate, specious principle, can be circular, square or other shape;
The bottom of solarization air cell 1 is connected by the bottom of solarization air cell's water inlet pipe 4 with microorganism aerobic treatment system, and mud enters solarization air cell 1 by the bottom of microorganism aerobic treatment system by solarization air cell's water inlet pipe 4;
In solarization air cell 1, mud is after aeration and low-intensity ultrasonic effect, filling is promoted to microorganism aerobic treatment system feed-water end by the sludge reflux pump 2 on solarization air cell's mud extraction pipeline 8, mix with the sewage in microorganism aerobic treatment system, preferential contact microorganism aerobic treatment system water inlet, the residence time of mud in solarization air cell is 5-20min.
It is below embodiment.
In the present embodiment, adopt certain sewage of drum-shaped activated sludge apparatus process.
Described COD of sewage
crfor 800-1000mg/L, BOD
5for 200-280mg/L.
Described drum-shaped activated-sludge processing apparatus useful volume is 30L, and height is 40cm about, and bottom arranges multi-group micropores aeration head.
In device, activated sludge concentration is about 3000mg/L, and sewage, needs to control gas-water ratio between 15:1-20:1, system water outlet COD after process for dissolved oxygen concentration in assurance device is between 2.5-3.0mg/L by activated-sludge processing apparatus with the flow velocity of 7.5L/h
crbe stabilized between 90-120mg/L.
Above-mentioned drum-shaped activated sludge apparatus is transformed, outside activated-sludge processing apparatus, arrange two useful volumes is the solarization air cell of 8L, solarization air cell's height about 30cm, bottom arranges multi-group micropores aeration head (gas dispersion apparatus 7), above aeration head, 5cm place arranges that (this is preferred version correspondingly, and non-limitingly only so to arrange) low intensity ultrasound producer, bottom solarization air cell, the pipeline be communicated with activated sludge apparatus is set respectively with top, and be equipped with valve and sludge lifting pump, for realizing mud circulating between activated sludge apparatus and solarization air cell.
After transformation, rerun experiment, the valve on aeration head supply air line bottom activated sludge apparatus is closed in experiment, activated sludge apparatus water inlet flow velocity is still 7.5L/h, mud passes through the flow rate control of solarization air cell at about 50L/h, mud oxygen supply is realized by Liang Ge solarization air cell, and open low intensity ultrasound wave producer in solarization air cell, getting acting frequency is between 20-27kHz, power input remains between 10-20W/L, under the condition keeping 15:1-20:1 gas-water ratio, in solarization air cell, dissolved oxygen concentration reaches more than 3.8mg/L, dissolved oxygen concentration in activated sludge apparatus reaches about 3.3mg/L, device water outlet COD
crbe stabilized between 60-80mg/L, when regulating aeration rate interval to 8:1-10:1 in experiment, in activated sludge apparatus, dissolved oxygen concentration Absorbable organic halogens is between 2.5-3.0mg/L, device water outlet COD
crabsorbable organic halogens is between 65-90mg/L.
Experimental result shows to adopt technology of the present invention can significantly reduce aeration gas consumption, and obviously can improve the treatment effect of aerobic treatment system.
The content be not described in detail in this specification sheets belongs to the known prior art of professional and technical personnel in the field.
Claims (9)
1. a low intensity ultrasound works in coordination with aerating apparatus, comprise solarization air cell (1), the bottom of solarization air cell (1) is provided with aerating apparatus (6), it is characterized in that: be also provided with low intensity ultrasound wave producer (5) in solarization air cell (1), low intensity ultrasound wave producer (5) is positioned at the top of aerating apparatus (6).
2. low intensity ultrasound as claimed in claim 1 works in coordination with aerating apparatus, it is characterized in that: solarization air cell (1) is connected to the bottom of microorganism aerobic treatment system by the solarization air cell's water inlet pipe (4) being provided with pipeline valve (3), microorganism aerobic treatment system feed-water end is connected to solarization air cell (1) by solarization air cell's mud extraction pipeline (8) being provided with sludge reflux pump (2).
3. low intensity ultrasound as claimed in claim 1 works in coordination with aerating apparatus, and it is characterized in that: described aerating apparatus (6) comprises some gas dispersion apparatus (7), gas dispersion apparatus (7) is connected with air compressor machine by airline.
4. low intensity ultrasound as claimed in claim 3 works in coordination with aerating apparatus, it is characterized in that: described gas dispersion apparatus (7) is boring aeration pipe, micro porous aeration head or other play the device of same purpose.
5. low intensity ultrasound as claimed in claim 3 works in coordination with aerating apparatus, it is characterized in that: directly over gas dispersion apparatus (7), is evenly arranged low intensity ultrasound wave producer (5).
6. low intensity ultrasound as claimed in claim 5 works in coordination with aerating apparatus, it is characterized in that: spacing 5 ~ 15cm between gas dispersion apparatus (7) and low intensity ultrasound wave producer (5).
7. low intensity ultrasound as claimed in claim 5 works in coordination with aerating apparatus, it is characterized in that: low intensity ultrasound wave producer (5) comprising: controller and transverter,
Directly over gas dispersion apparatus (7), be evenly arranged transverter,
It is outside that controller is arranged at solarization air cell (1),
Be connected by wire between transverter with controller,
Wire is positioned at the part waterproof sealing of solarization air cell (1).
8. low intensity ultrasound as claimed in claim 7 works in coordination with aerating apparatus, it is characterized in that: described transverter is waterproof type transverter.
9. low intensity ultrasound as claimed in claim 7 works in coordination with aerating apparatus, it is characterized in that: the frequency that described low intensity ultrasound wave producer (5) adopts is between 20-27kHz, and power input is between 10-20W/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473180.0A CN104556361A (en) | 2013-10-11 | 2013-10-11 | Low-intensity ultrasonic synergistic aeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473180.0A CN104556361A (en) | 2013-10-11 | 2013-10-11 | Low-intensity ultrasonic synergistic aeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104556361A true CN104556361A (en) | 2015-04-29 |
Family
ID=53073563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310473180.0A Pending CN104556361A (en) | 2013-10-11 | 2013-10-11 | Low-intensity ultrasonic synergistic aeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104556361A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032908A (en) * | 2015-06-23 | 2015-11-11 | 江苏麦可博生物环保工程技术有限公司 | Device and technological method for repairing organic contaminated soil and underground water |
| CN106219879A (en) * | 2016-08-26 | 2016-12-14 | 深圳云吉环保科技有限公司 | A kind of sewage-treatment plant realizing effluent cycle utilization |
| CN108128990A (en) * | 2018-02-13 | 2018-06-08 | 武汉都市环保工程技术股份有限公司 | Landfill leachate treatment system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047098A (en) * | 1999-08-11 | 2001-02-20 | Hitachi Kiden Kogyo Ltd | Wastewater and sludge treatment methods |
| CN101376553A (en) * | 2008-09-27 | 2009-03-04 | 哈尔滨工业大学 | Method for processing low temperature sewerage using low-intensity ultrasonic strengthened membrane bioreactor |
| CN203065198U (en) * | 2013-02-06 | 2013-07-17 | 广州市新栋力超声电子设备有限公司 | Underwater ultrasound oxygenation device |
-
2013
- 2013-10-11 CN CN201310473180.0A patent/CN104556361A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001047098A (en) * | 1999-08-11 | 2001-02-20 | Hitachi Kiden Kogyo Ltd | Wastewater and sludge treatment methods |
| CN101376553A (en) * | 2008-09-27 | 2009-03-04 | 哈尔滨工业大学 | Method for processing low temperature sewerage using low-intensity ultrasonic strengthened membrane bioreactor |
| CN203065198U (en) * | 2013-02-06 | 2013-07-17 | 广州市新栋力超声电子设备有限公司 | Underwater ultrasound oxygenation device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032908A (en) * | 2015-06-23 | 2015-11-11 | 江苏麦可博生物环保工程技术有限公司 | Device and technological method for repairing organic contaminated soil and underground water |
| CN105032908B (en) * | 2015-06-23 | 2017-06-06 | 江苏麦可博生物环保工程技术有限公司 | The device and process of a kind of renovation of organic pollution soil and underground water |
| CN106219879A (en) * | 2016-08-26 | 2016-12-14 | 深圳云吉环保科技有限公司 | A kind of sewage-treatment plant realizing effluent cycle utilization |
| CN108128990A (en) * | 2018-02-13 | 2018-06-08 | 武汉都市环保工程技术股份有限公司 | Landfill leachate treatment system and method |
| CN108128990B (en) * | 2018-02-13 | 2024-03-19 | 中冶南方都市环保工程技术股份有限公司 | Landfill leachate treatment system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103613254B (en) | The deep treatment method of fine chemistry industry garden sewage work organic wastewater with difficult degradation thereby | |
| CN108557985A (en) | A kind of catalytic ozonation stirring reactor and sewage water treatment method | |
| CN109516578B (en) | A high-efficiency aeration and oxygenation method and device for bubble suspension and bubble refinement | |
| CN204310864U (en) | The circulation pulling flow type immobilization bioreactor that the pool, a kind of lake water body in-situ is repaired | |
| CN101343108A (en) | Method of Coupling Hydrodynamic Cavitation and Ozone to Treat Sewage | |
| CN105820943A (en) | Multistage gas-liquid combined stirring Venturi tube-CSTR reactor | |
| CN102524124A (en) | Device and method for lifting shallow sea bed nutrients by air injection | |
| CN110980927A (en) | Black and odorous river regulation device and process based on bubble-free oxygenation technology | |
| CN103979683A (en) | Integrated expanded granular sludge bed-membrane bioreactor whole-course autotrophy denitrification device and process thereof | |
| CN104496008A (en) | Equipment and method for treating organic waste water by electrochemical-biological coupling | |
| CN102849858B (en) | Wastewater biological treatment method for performing microbubble aeration through SPG membrane | |
| CN104556361A (en) | Low-intensity ultrasonic synergistic aeration device | |
| CN203602453U (en) | Anaerobic meane biological reactor | |
| CN205953632U (en) | Hydrodynamic cavitation catalytic oxidation reactor | |
| CN102030442A (en) | Discharge and standard reaching treatment method for thick oil sewage of oilfields | |
| CN102992480B (en) | Device and process for carrying out autotrophic denitrification treatment on nitrate nitrogen in sewage based on non-foaming hydrogen supply | |
| CN202430092U (en) | Device for OAAO+MBR (membrane biological reactor) denitrification and dephosphorization sewage treatment process | |
| CN102557332B (en) | Push-flow circulating microbubble and surface aeration membrane biological reactor | |
| CN203144240U (en) | Biological reaction device for treating and recycling cultivation wastewater | |
| CN204779239U (en) | High-efficiency treatment system for coking wastewater | |
| CN204369742U (en) | A kind of anaerobic sludge digestion and marsh gas purifying synchronization processing apparatus | |
| CN220579052U (en) | Cross flow type anaerobic sewage treatment equipment | |
| CN107010718A (en) | A kind of ultrafiltration biofilm reactor device of gravity-driven and the method that low temperature low ammonia nitrogen waste water is handled with it | |
| CN107459130B (en) | Intermittent aeration circulation type biochemical reactor and intermittent aeration circulation method | |
| CN102531159B (en) | Membrane bioreactor combining plug flow and circulation of surface and micro-bubble aerations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |
|
| RJ01 | Rejection of invention patent application after publication |