CN104478107A - Terrace-type drop aeration component and terrace-type drop aeration device - Google Patents
Terrace-type drop aeration component and terrace-type drop aeration device Download PDFInfo
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- CN104478107A CN104478107A CN201410719307.7A CN201410719307A CN104478107A CN 104478107 A CN104478107 A CN 104478107A CN 201410719307 A CN201410719307 A CN 201410719307A CN 104478107 A CN104478107 A CN 104478107A
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- terrace
- drop water
- water aeration
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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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- Activated Sludge Processes (AREA)
Abstract
The invention relates to a terrace-type drop aeration component. The terrace-type drop aeration component consists of 5-10 stages of drop aeration components, wherein the height difference of every two stages of the drop aeration component is 0.2-0.5m; and each stage of the drop aeration component is formed by continuously splicing multiple drop aeration units with the uniform size; and two adjacent stages of the drop aeration components are mutually embedded. Preferentially, the drop aeration component units are arc-shaped. By utilizing the characteristics of terrace drop, increase of the contact area between the water flow and the air in the dropping process and the internal agitation, the mass transfer rate of oxygen is increased, and the aim of rapidly supplementing the dissolved oxygen consumed in the water body is achieved. The terrace-type drop aeration component has the advantages of high continuity, laid height difference flexibility, low energy consumption, low noise, simple structure and the like.
Description
Technical field
The present invention relates to water-treatment technology field, be specifically related to one and can be applicable to aeration oxygen replenishing assembly and device thereof in the systems such as artificial swamp, sewage disposal, landscape pond, can be used alone, also can with other aeration mode conbined usage.
Background technology
Water pollutions is the main aspect of current environmental problem, the additive method that China's present stage derives mainly through activated sludge process and its for administering polluted water body.Active sludge is the general name of microbial population and their organic substances of depending on and inorganic substance. utilize its pollution substance absorbed in Sum decomposition water body to reach the object purified water, for guarantee active sludge in whole treatment scheme activity, ensure that processing efficiency needs for providing stable dissolved oxygen in water body.Therefore, aerating system arises at the historic moment.Traditional aeration mode mainly contains mechanical aeration and blast aeration two kinds, and have when it runs continuously that energy consumption is high, noise is large, cost of equipment is expensive, control improper active sludge group stability of destroying and reduce the shortcomings such as treatment effect, application is restricted.
In view of this, special proposition the present invention.
Summary of the invention
The first object of the present invention is to provide a kind of for terrace-type drop water aeration assembly in sewage disposal pretreatment system, its principle is mainly to utilize landform drop, amass with air contact surfaces in current dropping process and increase and the feature of internal agitation, increase the rate of mass transfer of oxygen, realize the object of the dissolved oxygen consumed in fast repairing water-filling body.There is stronger continuity, lay the discrepancy in elevation flexible, the advantages such as energy consumption is low, and noise is little, simple structure.
For achieving the above object, the present invention adopts following technical scheme:
A kind of terrace-type drop water aeration assembly, described terrace-type drop water aeration assembly is made up of 5-10 level drop water aeration element, and every grade of drop water aeration element discrepancy in elevation is 0.2-0.5m.
Wherein, step number is according to reoxygenation amount free setting, and every grade of drop water aeration element heights difference is homogeneous.Adopt the setting of this progression and difference of altitude, the reoxygenation rate of of the present invention 50% ~ 70% can be ensured.
Terrace-type drop water aeration assembly of the present invention, every grade of drop water aeration element is spliced continuously by the drop water aeration unit of multiple size uniformity, and adjacent two-stage drop water aeration element embeds mutually.The area of described drop water aeration unit is according to aeration rate free setting.
The design of active cross-section of the present invention does not have severe limitations, can need to select other shapes such as semicircle, ellipse, trilateral, hexagon flexibly according to view, but best with the effect of arc, and the radius of described arc is 0.5 ~ 1m.
Terrace-type drop water aeration assembly of the present invention, the drop water aeration unit on the drop water aeration element of arbitrary neighborhood two-stage is interspersed, and the preferably distribution in fish scale-shaped, to obtain more preferably drop water aeration effect.
Terrace-type drop water aeration assembly of the present invention, the covering of the fan angle of described arc is 120 °-140 °.
The drop peak width of terrace-type drop water aeration assembly of the present invention can be determined on a case-by-case basis, as 8-20m, and preferred 10m.
The drop peak width of terrace-type drop water aeration assembly of the present invention can be determined on a case-by-case basis with length ratio, and preferred 4:3 realizes best aeration effect to make the most reasonably to design.
Terrace-type drop water aeration assembly of the present invention has following features: 1. adopt classification multi-stage type drop scheme, be generally good with 5 ~ 10 grades, can according to the needs of reoxygenation amount free adjustment when design.The place arranging terraced fields can be determined according to the height of water for the treatment of process own, avoids and uses water pump lifting water level and the unnecessary energy consumption that produces.Can adopt during construction and dig dark or manually padded mode downwards and build, surface adopts waterproof material laying, oozes problems such as causing ground unstable after avoiding life-time service under sewage.2. the section that drops preferably adopts cambered design.In air, oxygen transmits the restriction being subject to contact area in water, and larger contact area is conducive to the raising of mass-transfer efficiency.Therefore adopt arc-shaped sections to ensure that current and air have enough contact surfaces, and adopt the staggered mode of the superior and the subordinate (similar fish scale), ensure turbulent water and add hydraulic detention time, ensure that enough mass transfer power.3. as the pre-treatment link of wastewater treatment, its multistage section is that microbial growth provides good attachment environment, be conducive to the problem solving microorganism colonization difficulty in traditional biological filter tank technique, himself forms a mini-system, plays a pretreated effect to the waste water entering whole large treatment scheme.
The second object of the present invention is to provide a kind of for the terrace-type drop aeration in sewage disposal pretreatment system, described device comprises the grid connected successively, above-mentioned terrace-type drop water aeration assembly, biological reinforced settling tank, preaeration tank and wet land treating system, described grid connects pre-treatment water inlet, and described wet land treating system connects river.
Wherein, described wet land treating system is Traditional Man wet land treating system or the running water reoxygenation recycle system for landscape design.
Wherein, described grid, biological reinforced settling tank, preaeration tank are conventional structure.
Terrace-type drop aeration of the present invention is applicable to the massif surface that there is gradient in mountain area, realizes by the mode that excavated by manual work is dark or padded in plains region.
Adopt above-mentioned design, the present invention has following beneficial effect:
(1) inferior positions such as high without energy consumption in traditional aeration mode, aerating system easily blocks, labor management difficulty, realize the simplification for the treatment of scheme, automatization.
(2) simple structure, easy construction, without the need to laying aerated conduit, stability is high, and can with other scheme couplings.
In addition; the present invention asks to protect the application of terrace-type drop water aeration assembly of the present invention in landscape design and in aerating apparatus simultaneously; embody rule form is grasped by those skilled in the art; as being applied in artificial swamp pre-treatment reoxygenation system; or the shape-designing of artificial rockery is medium, the present invention is not particularly limited this.
Accompanying drawing explanation
Fig. 1 is the side-view of terrace-type drop aeration of the present invention;
Fig. 2 is the vertical view of terrace-type drop aeration of the present invention;
Fig. 3 is the instance graph of terrace-type drop water aeration component application when large-scale landscape water reoxygenation;
Fig. 4 is terrace-type drop water aeration component application case history figure when artificial wet land treating system;
Wherein, a is pre-treatment water inlet; 1 is grid; 2 is terrace-type drop water aeration assembly; 3 is biological reinforced deposition pond; 4 is preaeration tank; 5 is wet land treating system; B is river.
Embodiment
Following examples for illustration of this application, but are not used for limiting this application scope.
Embodiment 1
As depicted in figs. 1 and 2, terrace-type drop water aeration assembly described in the present embodiment arranges 5 grades of drop water aeration elements altogether, every grade of drop water aeration element discrepancy in elevation 0.3m, total head 1.5m, length 1.5m, this length of the drop wide 10m in region, long 7.5m(is from entering drop district to the projecting length going out this regional flow), total area 75m
2.
Terrace-type drop water aeration assembly employing described in the present embodiment is dug dark mode downwards and is built, and the overall distribution in fish scale-shaped, drop water aeration unit is arc, and the covering of the fan angle of arc is 120 °-140 °.
Embodiment 2
Compared with embodiment 1, distinctive points is only: described terrace-type drop water aeration assembly is made up of 10 grades of drop water aeration elements, and every grade of drop water aeration element discrepancy in elevation is 0.2m.
Embodiment 3
Compared with embodiment 1, distinctive points is only: described terrace-type drop water aeration assembly is made up of 8 grades of drop water aeration elements, and every grade of drop water aeration element discrepancy in elevation is 0.5m.
Embodiment 4
One is as shown in Figure 1, 2 used for the terrace-type drop aeration in sewage disposal pretreatment system (small-scale artificial wetland pre-treatment reoxygenation system), described device comprises the grid 1 connected successively, terrace-type drop water aeration assembly 2 of the present invention, biological reinforced settling tank 3, preaeration tank 4 and wet land treating system 5, wherein, grid connects pre-treatment water inlet a, and wet land treating system 5 connects river b.
Reoxygenation capability analysis
Because waste water has had supplementing to a certain degree at its dissolved oxygen when terrace-type drop water aeration section, alleviate the load of aerating apparatus in subsequent treatment process.Research shows, waste water is at the dissolved oxygen that can recover about 50% after drop pre-treatment, and in subsequent treatment process, aeration time can reduce about 40% ~ 60%.
Embodiment 5
As shown in Figure 3, the application of terrace-type drop water aeration assembly (embodiment 1-3 is arbitrary) of the present invention in large-scale landscape water reoxygenation.
Embodiment 6
As shown in Figure 4, the application of terrace-type drop water aeration assembly (embodiment 1-3 is arbitrary) of the present invention in artificial wet land treating system.
The invention provides a kind of simply and easily about the technical scheme of water reoxygenation, may be used for the aeration link in Sewage treatment systems, also may be used for the reoxygenation effect of water body in landscape water.Its advantage is: 1. utilize scale type terraced fields drop aeration can have the dissolved oxygen significantly promoted in water body, reoxygenation rate can reach about 50% ~ 70%.2. this device adopts the mode of nature drop by reaching the object of quick reoxygenation to the disturbance of water body and the contact area of increase oxygen and water body, without the need to consuming any energy, does not also need to increase other auxiliary facilitys, and can uninterruptedly carry out for 24 hours.3. in this aeration link without any need for manual intervention, current flow through this device natural reaeration, and level of automation is high, reduce generally acknowledge workload.4. this device has good face shaping, except being used as also can be used as view purposes except aeration link in waste water processes, utilizes topographical elevation difference or manual construction artificial hillock all can provide convenient for the realization of this device.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a terrace-type drop water aeration assembly, is characterized in that: described terrace-type drop water aeration assembly is made up of 5-10 level drop water aeration element, and every grade of drop water aeration element discrepancy in elevation is 0.2-0.5m.
2. terrace-type drop water aeration assembly according to claim 1, is characterized in that: every grade of drop water aeration element is spliced continuously by the drop water aeration unit of multiple size uniformity, and adjacent two-stage drop water aeration element embeds mutually.
3. terrace-type drop water aeration assembly according to claim 2, is characterized in that: described drop water aeration unit is arc, the radius of described arc is 0.5 ~ 1m.
4. terrace-type drop water aeration assembly according to claim 3, is characterized in that: the drop water aeration unit on the drop water aeration element of arbitrary neighborhood two-stage is interspersed.
5. terrace-type drop water aeration assembly according to claim 4, is characterized in that: described terrace-type drop water aeration assembly is fish scale-shaped distribution.
6. the terrace-type drop water aeration assembly according to any one of claim 3-5, is characterized in that: the covering of the fan angle of described arc is 120 °-140 °.
7. for the terrace-type drop aeration in sewage disposal pretreatment system, it is characterized in that: comprise connect successively grid, terrace-type drop water aeration assembly, biological reinforced settling tank, preaeration tank and wet land treating system described in any one of claim 1-6, described grid connects pre-treatment water inlet, and described wet land treating system connects river.
8. device according to claim 7, is characterized in that: described wet land treating system is Traditional Man wet land treating system or the running water reoxygenation recycle system for landscape design.
9. the application of terrace-type drop water aeration assembly in landscape design described in any one of claim 1-6.
10. the application of terrace-type drop water aeration assembly in aerating apparatus described in any one of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410719307.7A CN104478107A (en) | 2014-12-03 | 2014-12-03 | Terrace-type drop aeration component and terrace-type drop aeration device |
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| CN201410719307.7A CN104478107A (en) | 2014-12-03 | 2014-12-03 | Terrace-type drop aeration component and terrace-type drop aeration device |
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| CN104478107A true CN104478107A (en) | 2015-04-01 |
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| CN201410719307.7A Pending CN104478107A (en) | 2014-12-03 | 2014-12-03 | Terrace-type drop aeration component and terrace-type drop aeration device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105481108A (en) * | 2015-12-22 | 2016-04-13 | 西安水务（集团）规划设计研究院有限公司 | Apparatus for removing temporary hardness in water during tower type water fall |
| CN107235562A (en) * | 2017-08-10 | 2017-10-10 | 中国科学院南京地理与湖泊研究所 | A kind of biological diaphragm plate purification of water quality component of step alternating expression |
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| CN103739081A (en) * | 2014-01-13 | 2014-04-23 | 上海交通大学 | Subsurface flow wetland device for enhanced nitrogen removal of low-pollution water |
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Patent Citations (5)
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| JP2005305257A (en) * | 2004-04-20 | 2005-11-04 | Hitachi Kiden Kogyo Ltd | Aerator |
| CN101597126A (en) * | 2009-07-07 | 2009-12-09 | 重庆大学 | A kind of sewage water treatment method of suitable hilly small towns |
| CN102358660A (en) * | 2011-09-13 | 2012-02-22 | 中国水产科学研究院黄海水产研究所 | Constructed wetland based system and method for recycling factory-like seawater culture discharged water |
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Cited By (2)
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|---|---|---|---|---|
| CN105481108A (en) * | 2015-12-22 | 2016-04-13 | 西安水务（集团）规划设计研究院有限公司 | Apparatus for removing temporary hardness in water during tower type water fall |
| CN107235562A (en) * | 2017-08-10 | 2017-10-10 | 中国科学院南京地理与湖泊研究所 | A kind of biological diaphragm plate purification of water quality component of step alternating expression |
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Application publication date: 20150401 |