CN101172705A - High-efficiency oxidation ditch biological sewage treatment method and system - Google Patents
High-efficiency oxidation ditch biological sewage treatment method and system Download PDFInfo
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- CN101172705A CN101172705A CNA2007101332324A CN200710133232A CN101172705A CN 101172705 A CN101172705 A CN 101172705A CN A2007101332324 A CNA2007101332324 A CN A2007101332324A CN 200710133232 A CN200710133232 A CN 200710133232A CN 101172705 A CN101172705 A CN 101172705A
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- oxidation ditch
- gouge
- raceway groove
- oxidation
- aeration machine
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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
Abstract
The invention discloses a high-efficient oxidation gouge sewage organism treating method and a system which comprise a ring shape oxidation gouge with at least two gouge paths, a low speed surface aerator, a water inlet and a water outlet. A partition is arranged between the adjacent gouge paths; the low speed aerator is arranged on the partition shared by the adjacent gouge paths of the oxidation gouge; the two sides of the partition out of the impeller of the aerator are respectively provided with an arc flow guiding board at the corresponding position; or the low speed surface aerator is arranged in the gouge paths of the oxidation gouge; at the same time, the side of the impeller of the aerator near the gouge path wall of the oxidation gouge is provided with a semicircular flow guiding board. The gouge path system of the oxidation gouge adopts the oxidation gouge formed by concentric circle walls with comparatively smaller resistance loss with big gouge path flowing speed, good mixing effect and no need of adding mixing apparatus; at the same time, the low speed surface aerator is adopted, and the aeration efficiency is high.
Description
Technical field
The invention belongs to sewage treatment area, particularly biological sewage treatment oxidation Ditch Technology field.
Background technology
Trade effluent and sanitary sewage are discharged into natural water body, cause the serious environmental pollution, and therefore, the method that main at present employing dirty water living creature processing technique is a core is handled, and reduces organism and nutrient concentrations in the sewage.The oxidation ditch biological sewage treatment technology is in annular channel, by active sludge oxidation, absorption or decomposing organic matter and nutritive salt.Usually provide dissolved oxygen by aerator, propelling fluid flows in raceway groove simultaneously, makes mud and sewage and dissolved oxygen thorough mixing, realizes the saprobia degraded.In common sewage biological treatment system, the oxygenic aeration system energy consumption is big, can provide and well mix ability.Oxidation ditch biological sewage is handled the normal underload design of adopting, oxygen requirement is less under the unit aeration tank volume, a lot of oxidation ditch biological sewage treatment systems, the simple aerator plug-flow that relies on, mud and sewage mixed solution velocity of flow are low in the raceway groove, need the extra plug-flow equipment that increases, system energy consumption is increased.The low speed surface aeration machine normally sucks bottom flow, sheds by rotary blade, produces aeration and plug-flow effect, and there is not low regime in the aerator bottom usually; And the oxygen-transfer efficiency height, be usually used in the Carrousel oxidation ditch.The Carrousel oxidation ditch adopts and adds barrier wall structure formation ring seal raceway groove in semicircle and the rectangle pond body, and baffle plate itself also has guide functions, makes not only aeration of low speed surface aeration machine, and plays the plug-flow effect.But we discover, because its turning radius is little, the centrifugal force that bend produces is big, thereby the transverse circulating current speed that bend centrifugal force is produced is big, and the curve resistance loss that causes is big, usually needing increases plug-flow equipment, improves the Carrousel oxidation ditch and flows and mixed effect.The annular channel that the Orbal oxidation ditch often adopts concentric(al) circles or similar structures to constitute, turning radius is bigger in the raceway groove, and the curve resistance loss is little, as the about 2440m of the N.J. Evesham Elmwood orbal of sewage work oxidation ditch outer fissure volume
3, adopting long 6 meters plate-spinning aerator, the about 7kw of power not only satisfies the interior aeration aerating demand of raceway groove, and plug-flow speed reaches 0.83m/s, is far longer than oxidation ditch design requirements (0.3m/s).But, existing orbal oxidation ditch mainly adopts plate-spinning or brush aeration machine, and not only oxygen-transfer efficiency is lower to change brush and plate-spinning aerator, and is easy to generate low regime below changeing brush and plate-spinning equipment, cause sludgd deposition, have a strong impact on oxidation ditch biological sewage treatment system performance.
Summary of the invention
The purpose of this invention is to provide a kind of high-efficiency oxidation ditch biological sewage treatment method and system, adopt in the oxidation ditch of annular wall and base plate formation, the high-efficient low-speed surface aeration machine under the situation that satisfies system's aeration aerating minimum requirements, reaches the requirement of raceway groove inner fluid plug-flow blended simultaneously.
Technical scheme of the present invention is as follows:
A kind of high-efficiency oxidation ditch biological sewage treatment method, it is characterized in that it being to be provided with to comprise the annular oxidation ditch that has two raceway grooves at least, on the total partition wall of adjacent oxidation ditch raceway groove or in the oxidation ditch raceway groove, surface aeration machine is installed, near oxidation ditch channel walls one side semicircle flow deflector is installed at the surface aeration machine impeller, by the surface aeration machine wheel rotation, the effluent cycle that promotes in the oxidation ditch flows, and finishes the sewage aerobic treating processes.
A kind of high-efficiency oxidation ditch biological sewage treatment system comprises the annular oxidation ditch that has two raceway grooves at least, surface aeration machine, and water-in, water outlet is characterized in that: surface aeration machine is installed on the total partition wall of adjacent oxidation ditch raceway groove; Perhaps surface aeration machine is installed in the oxidation ditch raceway groove, near oxidation ditch channel walls one side semicircle flow deflector is installed at the surface aeration machine impeller simultaneously.
Described a kind of high-efficiency oxidation ditch biological sewage treatment system is characterized in that described two arc deflectors of the outer installation of surface aeration machine that are installed on the total partition wall of adjacent oxidation ditch raceway groove.
Described a kind of high-efficiency oxidation ditch biological sewage treatment system is characterized in that described arc or semicircle flow deflector height greater than the aeration machine impeller height, and flow deflector top is equal with the water surface.
Described a kind of high-efficiency oxidation ditch biological sewage treatment system, it is characterized in that described annular channel is a triple channel, wherein the most inboard raceway groove adopts impeller plug-flow under water, constitute anaerobic pond, constitute anaerobic-aerobic sewage biological treatment system with dephosphorization denitrogenation function with intermediate channel and outside raceway groove.Or in interior raceway groove, dispose blast aeration system simultaneously, and perhaps adopt and change brush or plate-spinning plug-flow aeration, constitute triple channel aerobic aeration pond.
6, as a kind of high-efficiency oxidation ditch biological sewage treatment system as described in claims 2, it is characterized in that being installed in the surface aeration machine on the total partition wall of adjacent oxidation ditch raceway groove, its below is a breach, no barricade.
System of the present invention is three concentric round bodies of wall or four concentric round bodies of wall, double channel oxidation ditch or triple channel oxidation ditch with end wall formation, the low speed surface aeration machine is installed on the midfeather of two raceway grooves, when impeller turns clockwise, outer raceway groove current flow in the direction of the clock, and interior raceway groove is by counterclockwise flowing.When the low speed surface aeration machine counterclockwise rotated, outer raceway groove current were by counterclockwise flowing, and interior raceway groove flows in the direction of the clock.Thereby not only aeration aerating, and promotion raceway groove flow is finished mixing functions.
When the low speed surface aeration machine is installed in raceway groove central authorities, at this moment around aerator, semicircle flow deflector is installed, make current under the flow deflector effect, flow to a direction.
Be installed in the low speed surface aeration machine on the adjacent oxidation ditch raceway groove partition wall, in the aeration machine impeller periphery two 90 degree arc deflectors are installed, are positioned at the relative position of partition wall both sides, when making current leave aerator, flow direction guiding channel current flows direction increases the plug-flow effect.
Described arc or semicircle flow deflector height are greater than the aeration machine impeller height, and flow deflector top is equal with the water surface.
When described annular channel was triple channel, wherein the most inboard raceway groove adopted impeller plug-flow under water, constituted anaerobic pond, constituted the anaerobic-aerobic sewage biological treatment system with dephosphorization denitrogenation function with intermediate channel and outside raceway groove.Or in interior raceway groove, dispose blast aeration system simultaneously, and perhaps adopt and change brush or plate-spinning plug-flow aeration, constitute triple channel aerobic aeration pond.
Installation surface aeration machine on the total partition wall of adjacent oxidation ditch raceway groove, its below is a breach, no barricade can reduce resistance.
The invention has the beneficial effects as follows: the oxidation ditch that the oxidation ditch channel system adopts the less concentric(al) circles enclosure wall of drag losses to constitute, channel current flows speed is big, good mixing effect, do not need to increase mixing equipment, adopt the low speed surface aeration machine simultaneously, aeration efficient height, total energy consumption reduces.
Description of drawings
Fig. 1 is a kind of oxidation ditch structural representation that does not increase flow deflector.
Fig. 2 is the another kind of oxidation ditch structural representation that does not increase flow deflector.
Fig. 3 is a kind of structural representation of the present invention.
Fig. 4 is the another kind of structural representation of the present invention.
Embodiment
Embodiment 1: as shown in Figure 1, the annular oxidation ditch 4 and 5 that surrounds by enclosure wall 1,2 and 3, on the enclosure wall 2, sewage and mud mixed liquid entered oxidation ditch 4 by water-in 7, enter oxidation ditch 5 by aerator 6 in the middle of low speed surface aeration machine 6 was installed in, discharge by water outlet 8, during aerator work, turn clockwise, dissolved oxygen is provided, promote oxidation ditch 4 interior current simultaneously and flow clockwise, current flow counterclockwise in the oxidation ditch 5.Finish the sewage aerobic treating processes.
Embodiment 2: as shown in Figure 2, and the annular oxidation ditch 4 and 5 that surrounds by enclosure wall 1,2 and 3, aerator 6 is installed in the middle of oxidation ditch 4 and 5, be peripherally equipped with flow deflector 9, sewage and mud mixed liquid enter oxidation ditch 4 by water-in 7, enter oxidation ditch 5 by hole on the midfeather 10, send by water outlet 8, during aerator 6 work, turn clockwise, dissolved oxygen is provided, promote simultaneously that current flow clockwise in oxidation ditch 4 and 5, in oxidation ditch, finish the sewage aerobic treating processes.
Example example 3: as shown in Figure 3 and Figure 4, by the annular oxidation ditch 4 and 5 that enclosure wall 1,2 and 3 surrounds, aerator 6 is installed on the middle enclosure wall 2, sewage and mud mixed liquid enter oxidation ditch 4 by water-in 7, enter oxidation ditch 5 by aerator 6, send, during aerator work by water outlet 8, turn clockwise, dissolved oxygen is provided, promotes oxidation ditch 5 interior current simultaneously and flow clockwise, current flow counterclockwise in the oxidation ditch 4.Two 90 degree arc deflectors 11 and 12 are installed around the aerator, are installed in respectively on two oxidation ditches, the flow deflector height equals the aeration machine impeller height, and flow deflector one end is installed on the partition wall, and top is equal with the water surface.Increase by two when making current leave aerator, flow direction guiding channel current flows direction increases the plug-flow effect.Finish the sewage aerobic treating processes.
Embodiment 4: as shown in Figure 4, and by enclosure wall 1,2,3 and the 13 annular oxidation ditches 5,4 and 14 that surround, aerator 6 are installed on the middle enclosure wall 3, sewage and mud mixed liquid enter oxidation ditch 14 by water-in 7, enter oxidation ditch 4 by aerator 6, enter oxidation ditch 5 by hole on the wall 2, send by water outlet 8, during aerator 6 work, turn clockwise, dissolved oxygen is provided, promote oxidation ditch 14 interior current simultaneously and flow clockwise, current flow counterclockwise in the oxidation ditch 4.Impeller 15 under water is installed in oxidation ditch 5, promotes the oxidation ditch flow.Finish the sewage aerobic treating processes.
Claims (6)
1. high-efficiency oxidation ditch biological sewage treatment method, it is characterized in that it being to be provided with to comprise the annular oxidation ditch that has two raceway grooves at least, on the total partition wall of adjacent oxidation ditch raceway groove or in the oxidation ditch raceway groove, surface aeration machine is installed, near oxidation ditch channel walls one side semicircle flow deflector is installed at the surface aeration machine impeller, by the surface aeration machine wheel rotation, the effluent cycle that promotes in the oxidation ditch flows, and finishes the sewage aerobic treating processes.
2. a high-efficiency oxidation ditch biological sewage treatment system comprises the annular oxidation ditch that has two raceway grooves at least, surface aeration machine, and water-in, water outlet is characterized in that: surface aeration machine is installed on the total partition wall of adjacent oxidation ditch raceway groove; Perhaps surface aeration machine is installed in the oxidation ditch raceway groove, near oxidation ditch channel walls one side semicircle flow deflector is installed at the surface aeration machine impeller simultaneously.
3. as a kind of high-efficiency oxidation ditch biological sewage treatment system as described in claims 2, it is characterized in that describedly being installed in that surface aeration machine on the total partition wall of adjacent oxidation ditch raceway groove is outer installs two arc deflectors.
4. as a kind of high-efficiency oxidation ditch biological sewage treatment system as described in claims 2 or 3, it is characterized in that described arc or semicircle flow deflector height greater than the aeration machine impeller height, flow deflector top is equal with the water surface.
5. as claims 2,3 or 4 described a kind of high-efficiency oxidation ditch biological sewage treatment systems, it is characterized in that described annular channel is a triple channel, wherein the most inboard raceway groove adopts impeller plug-flow under water, constitute anaerobic pond, constitute anaerobic-aerobic sewage biological treatment system with dephosphorization denitrogenation function with intermediate channel and outside raceway groove.Or in interior raceway groove, dispose blast aeration system simultaneously, and perhaps adopt and change brush or plate-spinning plug-flow aeration, constitute triple channel aerobic aeration pond.
6. as a kind of high-efficiency oxidation ditch biological sewage treatment system as described in claims 2, it is characterized in that being installed in the surface aeration machine on the total partition wall of adjacent oxidation ditch raceway groove, its below is a breach, no barricade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101332324A CN101172705A (en) | 2007-09-21 | 2007-09-21 | High-efficiency oxidation ditch biological sewage treatment method and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101332324A CN101172705A (en) | 2007-09-21 | 2007-09-21 | High-efficiency oxidation ditch biological sewage treatment method and system |
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| CN101172705A true CN101172705A (en) | 2008-05-07 |
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| CNA2007101332324A Pending CN101172705A (en) | 2007-09-21 | 2007-09-21 | High-efficiency oxidation ditch biological sewage treatment method and system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898827A (en) * | 2010-03-16 | 2010-12-01 | 莱昴哈德富克斯和马丁富克斯发明公司 | Be used for activated sludge process and facility that biological municipal sewage is handled |
| CN102010106A (en) * | 2010-12-02 | 2011-04-13 | 福州城建设计研究院 | Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| CN103924551A (en) * | 2014-04-25 | 2014-07-16 | 环境保护部南京环境科学研究所 | Pre-dam processing system characterized in landscape integration |
| CN105967359A (en) * | 2016-07-11 | 2016-09-28 | 川源(中国)机械有限公司 | Surface aerator with vertical motor for sewage treatment system |
| CN108217923A (en) * | 2017-12-29 | 2018-06-29 | 陕西科技大学 | Three ditch flows of one kind Orbal oxidation ditches flowing state regulating structure in the same direction and method |
| CN108395007A (en) * | 2017-02-08 | 2018-08-14 | 合胜环保设备有限公司 | Aeration structure |
| CN108516615A (en) * | 2018-04-19 | 2018-09-11 | 安徽建筑大学 | A kind of oxidation ditch using pump-type impeller surface aerating machine |
| CN110330181A (en) * | 2019-07-18 | 2019-10-15 | 安徽润航农业科技开发有限公司 | A kind of farm's biogas slurry cleaning treatment system and processing method |
-
2007
- 2007-09-21 CN CNA2007101332324A patent/CN101172705A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898827A (en) * | 2010-03-16 | 2010-12-01 | 莱昴哈德富克斯和马丁富克斯发明公司 | Be used for activated sludge process and facility that biological municipal sewage is handled |
| CN102010106A (en) * | 2010-12-02 | 2011-04-13 | 福州城建设计研究院 | Integrated high-efficiency oxidation ditch and sewage treatment process thereof |
| CN103924551A (en) * | 2014-04-25 | 2014-07-16 | 环境保护部南京环境科学研究所 | Pre-dam processing system characterized in landscape integration |
| CN103924551B (en) * | 2014-04-25 | 2016-06-15 | 环境保护部南京环境科学研究所 | A kind of with the landscape integrated front damming process system for feature |
| CN105967359A (en) * | 2016-07-11 | 2016-09-28 | 川源(中国)机械有限公司 | Surface aerator with vertical motor for sewage treatment system |
| CN108395007A (en) * | 2017-02-08 | 2018-08-14 | 合胜环保设备有限公司 | Aeration structure |
| CN108217923A (en) * | 2017-12-29 | 2018-06-29 | 陕西科技大学 | Three ditch flows of one kind Orbal oxidation ditches flowing state regulating structure in the same direction and method |
| CN108516615A (en) * | 2018-04-19 | 2018-09-11 | 安徽建筑大学 | A kind of oxidation ditch using pump-type impeller surface aerating machine |
| CN108516615B (en) * | 2018-04-19 | 2020-05-15 | 安徽建筑大学 | Oxidation ditch adopting pump type impeller surface aerator |
| CN110330181A (en) * | 2019-07-18 | 2019-10-15 | 安徽润航农业科技开发有限公司 | A kind of farm's biogas slurry cleaning treatment system and processing method |
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Open date: 20080507 |