CN102424470B - Aeration disc and aeration apparatus for treating river water pollution - Google Patents
Aeration disc and aeration apparatus for treating river water pollution Download PDFInfo
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- CN102424470B CN102424470B CN2011103332344A CN201110333234A CN102424470B CN 102424470 B CN102424470 B CN 102424470B CN 2011103332344 A CN2011103332344 A CN 2011103332344A CN 201110333234 A CN201110333234 A CN 201110333234A CN 102424470 B CN102424470 B CN 102424470B
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- aeration
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- annular hose
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- aeration plate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The invention discloses an aeration disc and an aeration apparatus for treating river water pollution. The aeration disc comprises a support, at least three annular flexible pipes fixed on the support in a same plane and one pneumatic tube communicating with all annular flexible pipes, wherein a tube wall of each of the annular flexible pipe is provided with an aeration aperture. During aeration of oxygen charging into a water body, gas diffuses around the aeration disc to form eddy current, and convection occurs between an upper layer and a lower layer of the water body, so as to accelerate reoxygenation of the water body and reduce energy consumption.
Description
Technical field
The present invention relates to a kind of aerating apparatus, relate in particular to a kind of aeration plate and aerating apparatus of apparatus for treating river water pollution.
Background technology
Find from the Clarke of Britain in 1912 and Gage, can produce mud to the long-time aeration of sewage, simultaneously water quality be improved significantly, activated sludge process just and wastewater treatment be closely linked.The U.S. has 18000 of waste water treatment plants approximately, and wherein 84% is two stage biological treatment plant.About 3000 of the total treatment plant of Britain almost is two stage biological treatment plant entirely, and there are 630 of municipal sewage in Japan, 2000 of waste water treatment plants, villages and small towns, and wherein second-stage treatment factory and advanced processes factory account for about 98%.Sweden is underpopulated necessarily, but 1540 municipal sewage are arranged, and wherein 91% is two stage biological treatment plant.In the two stage biological treatment scheme that developed country generally adopts, outstanding most widely used with activated sludge process.
A fundamental of activated sludge process is exactly dissolved oxygen, does not have sufficient dissolved oxygen, and aerobic microbiological just can not be brought into play oxygenolysis, and dissolved oxygen has restricted the treatment effect of activated sludge process.And a typical sewage work, aeration expends and often accounts for 60～80% of working cost.Traditional aerator efficient is excessively low, and the not good energy consumption of aeration that all makes of the control of aeration tank operation is difficult to descend.And along with Economic development in season, the coverage, the composition of sewage treatment plant inflow all varies widely, but existing sewage work is not mostly for water quality change adjustment aeration rate, thereby the aeration deficiency can occur causes the treatment effect of water outlet bad, aeration excessively causes energy wastage, the waste of running cost.Therefore, the quality of aeration control has determined treatment effect and the operation energy consumption of activated sludge process.
The factor that analysis causes oxygen requirement to change finds the factor that affects the aeration oxygen transfer, solves the variation that influent quality changes the oxygen requirement that causes, and dissolved oxygen is controlled in the optimum range that satisfies biological needs, reaches the demand of biological activity with minimum energy consumption.Develop efficient aerator, grasp different waste water and operational condition to the impact of oxygen transfer, suit measures to local conditions, can be according to the different aeration rates of automatically adjusting of influent quality, so that both guaranteed the dissolved oxygen demand, the reduce energy consumption is one of important research task of environmental work again.
The basic physical chemistry model of activated sludge process aeration is exactly the three-phase flow model, and it has the three basic key element, and the one, the microorganism that causes the adsorption and oxidation Decomposition, namely activated sludge particles (solid phase); The 2nd, the organism in the waste water and dissolved oxygen (liquid phase); The 3rd, the main source of dissolved oxygen, the microbubble in the water (gas phase).Do not have sufficient dissolved oxygen, aerobic microbiological just can not be brought into play the aerobic oxygenolysis.Therefore an effective treatment process just must make microorganism, and organism fully contacts with oxygen, and three-phase is interacted, and reaches and processes various organic purposes.Thereby in oxygenation, must make activated sludge particles be in suspended state.Oxygenation and mixing realize by aerator.
Oneself has obtained popularization to aerator as a kind of effective sewage disposal device, its major function is to be filled with air in sewage, the solid, liquid, gas three-phase is fully mixed, in water cycle process, airborne oxygen is dissolved in the water, and fully contact, mix with organism, microorganism, for microbial respiratory, make organism obtain oxidation, thereby improved contaminated ecotope, make purification of water quality, create the environment that is fit to biological growth.Simultaneously, the electric energy of sewage work mainly consumes on secondary biochemical treatment active sludge aeration system, and in various biochemical treatment processes, aeration process is as a kind of indispensable link, its quality not only affects the sewage Biochemical Treatment, and directly affects the working cost of Sewage Plant.And secondary pollution and occupation of land thereof that the aeration tank causes also can not be ignored.Therefore, how to improve the oxygen transfer efficient in the aeration, reduce the floor space of aeration tank, reduce secondary pollution and just caused relevant professional person's attention.
Summary of the invention
The invention provides a kind of aeration plate of apparatus for treating river water pollution, this aeration plate is simple in structure, can make the ambient water body form eddy current, and is high to the water body oxygen-transfer efficiency.
A kind of aeration plate of apparatus for treating river water pollution, comprise support, be fixed on the described support at least three be in conplane annular hose and a pneumatic tube that is communicated with all annular hoses, the tube wall of described annular hose is provided with solarization air cap.
Described solarization air cap is linear cellular distribution at the tube wall of annular hose.
All annular hoses are circular, and arrange with one heart.
Described support is the rice font support that forms by the cradling piece at annular hose center by four.
Described solarization air cap reduces gradually from the outside aperture of an end near the annular hose inner chamber, can further avoid mud to pour in down a chimney the blocking aeration hole.
The aperture of described solarization air cap is less than 1mm, and the bubble that micro-pore aeration produces is little, and specific surface area is large, makes air demand variable adjustable, and the oxygen dissolved efficiency is high simultaneously, can satisfy the movable oxygen consumption demand of a large amount of highdensity dominant microfloras, and aeration efficient is increased to original 5 times.
The thickness of pipe of described annular hose is 2～3mm.
The present invention also provides a kind of aerating apparatus, comprises above-mentioned aeration plate and turbofan, and the air outlet of described turbofan is communicated with the inlet end of described pneumatic tube.
During to the water body oxygenation, gas is diffused in its periphery and forms eddy current aeration plate of the present invention at aeration, and the simultaneously generation convection current between the levels water body so that water reoxygenation is accelerated, has reduced energy consumption.
Flexible pipe of the present invention is bulging when aeration, and solarization air cap opens, and then owing to closed by the acting by external hydrostatic pressure solarization air cap, can avoid mud it to be stopped up designs simplification in the situation of not using air filter unit when quitting work.
Description of drawings
Fig. 1 is the structural representation of aeration plate of the present invention;
Fig. 2 is the longitudinal section view of flexible pipe in apparatus of the present invention;
Fig. 3 is the structural representation of aerating apparatus of the present invention.
Embodiment
As shown in Figure 1, a kind of aeration plate of apparatus for treating river water pollution, comprise meter font support 102 and and be fixed on six annular hoses 101 that arrange with one heart on the support 102, annular hose 101 is circular, tube wall is provided with and is the solarization air cap 104 that linear honeycomb distributes, also comprise a pneumatic tube 103 that is communicated with all annular hoses 101, pneumatic tube 103 is along annular hose 101 diametric(al) settings.Flexible pipe can be selected such as materials such as PE, PVC and make.
The radial section of annular hose as shown in Figure 2, solarization air cap 104 be from reducing gradually near the outside aperture of an end of annular hose 101 inner chambers, and the maximum diameter of hole is not more than 1mm, and the thickness of pipe of annular hose 101 is 3mm, can be adjusted into 2～3mm as required.
As shown in Figure 3, a kind of aerating apparatus that comprises above-mentioned aeration plate, it comprises aeration plate 1 and turbofan 2, and the inlet end of pneumatic tube 103 is communicated with the air outlet of turbofan 2, and present embodiment turbofan 2 adopts turbosupercharged engine to drive powerful.
During work, turbofan 2 is sent into high-pressure air by pneumatic tube 103 to aeration plate 1, the flexible pipe spreading, and solarization air cap 104 is enlarged, and gas is gone out rear formation bubble from solarization air cap 104, and bubble diameter is at 1～3mm, specific surface area is large, and air demand is variable adjustable, and aeration efficient also increases substantially.
After air is gone out from solarization air cap, because the effect of annular hose 101 so that the water body around the aeration plate 1 forms eddy current, has strengthened the convection current of levels water body, increased the water reoxygenation ability.
Claims (4)
1. the aeration plate of an apparatus for treating river water pollution, it is characterized in that, comprise support, be fixed on the described support at least three be in conplane annular hose and a pneumatic tube that is communicated with all annular hoses, the tube wall of described annular hose is provided with solarization air cap;
Described solarization air cap reduces gradually from the outside aperture of an end near the annular hose inner chamber, and the aperture is less than 1mm; The thickness of pipe of described annular hose is 2～3mm;
Described solarization air cap is linear cellular distribution at the tube wall of annular hose.
2. aeration plate according to claim 1 is characterized in that, all annular hoses are circular, and arranges with one heart.
3. aeration plate according to claim 2 is characterized in that, described support is the rice font support that forms by the cradling piece at annular hose center by four.
4. an aerating apparatus that comprises the described aeration plate of claim 1 is characterized in that, also comprises a turbofan, and the air outlet of described turbofan is communicated with the inlet end of described pneumatic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103332344A CN102424470B (en) | 2011-10-28 | 2011-10-28 | Aeration disc and aeration apparatus for treating river water pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103332344A CN102424470B (en) | 2011-10-28 | 2011-10-28 | Aeration disc and aeration apparatus for treating river water pollution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102424470A CN102424470A (en) | 2012-04-25 |
| CN102424470B true CN102424470B (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103332344A Expired - Fee Related CN102424470B (en) | 2011-10-28 | 2011-10-28 | Aeration disc and aeration apparatus for treating river water pollution |
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| Country | Link |
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| CN (1) | CN102424470B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102674533B (en) * | 2012-05-10 | 2014-02-19 | 武汉市政工程设计研究院有限责任公司 | Rotary microporous aeration circular coil system for treating sewage |
| CN103818997B (en) * | 2013-12-31 | 2017-08-11 | 北京清大国华环境股份有限公司 | A kind of composite aeration MBR method and apparatus |
| CN105104287B (en) * | 2015-08-17 | 2018-09-21 | 孙健春 | A kind of breeding soft-shell turtle oxygen-increasing device |
| CN105417745A (en) * | 2015-12-21 | 2016-03-23 | 津水华清（天津）膜科技有限公司 | High-effective aeration pipeline |
| CN108314178A (en) * | 2017-01-17 | 2018-07-24 | 中国石化集团四川维尼纶厂 | A kind of aeration tube assembly of polyvinyl alcohol immobilized microorganism Gel Treatment sewage |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2235967Y (en) * | 1995-12-03 | 1996-09-25 | 抚顺石油化工公司石油二厂 | Energy-saving blowing aerating dirt-water biochemical treatment device |
| CN201334393Y (en) * | 2009-01-20 | 2009-10-28 | 达斯玛环境科技（北京）有限公司 | Perforated aerator pipe applied to sewage water biochemical treatment |
| CN202265456U (en) * | 2011-10-28 | 2012-06-06 | 浙江工商大学 | Aeration disc and aeration device for water pollution regulation of riverways |
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2011
- 2011-10-28 CN CN2011103332344A patent/CN102424470B/en not_active Expired - Fee Related
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| CN102424470A (en) | 2012-04-25 |
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