CN103922476A - Sectional type A2/O activated sludge process reaction device - Google Patents
Sectional type A2/O activated sludge process reaction device Download PDFInfo
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- CN103922476A CN103922476A CN201410201285.5A CN201410201285A CN103922476A CN 103922476 A CN103922476 A CN 103922476A CN 201410201285 A CN201410201285 A CN 201410201285A CN 103922476 A CN103922476 A CN 103922476A
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- overflow plate
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- reaction tank
- sludge
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- Activated Sludge Processes (AREA)
Abstract
The invention discloses a sectional type A2/O activated sludge process reaction device which comprises reaction tanks and further comprises at least two sludge-water separation devices. The sludge-water separation devices are arranged in the reaction tanks. Each reaction tank is sequentially divided into an anaerobic tank, an oxygen deficit tank and an aerobic tank in the water flow direction. Each sludge-water separation device comprises a first overflow plate, a guide plate and a second overflow plate which are arranged in sequence in the water flow direction. The sludge-water separation devices are arranged and the flow speed of sludge-water mixed liquid in each reaction tank can be reduced so that the sludge-water mixed liquid can stay in each reaction tank for enough time, and therefore thorough reaction is achieved. Meanwhile, when the sludge-water mixed liquid passes through the sludge-water separation devices, part of sludge is held back through precipitation and is made to return to the original reaction tanks, so that mixture of sludge with different bacteria is reduced, the number of effective florae in each reaction tank is kept, the use rate of the sludge is improved, and therefore the processing efficiency is improved.
Description
Technical field
The present invention relates to sewage water filtration processing technology field, particularly a kind of sectional type A
2/ O activated sludge process reaction unit.
Background technology
A
2/ O technique also claims A-A-O technique, is the abbreviation (anaerobic-anoxic-oxic) of English Anaerobic-Anoxic-Oxic first letter, is the abbreviation of biological denitrification phosphorous removal technique.
In prior art, conventionally adopt sectional type A
2/ O activated sludge process reaction unit, it comprises anaerobic reactor, anoxic reacter, aerobic reactor and settling tank, in the course of the work, first raw waste water enters anaerobic reactor with the mud refluxing from settling tank, polyP bacteria in this mud utilizes the dissolved organic matter in raw waste water to carry out anaerobic phosphorus release, then together with the mixed solution refluxing with aerobic reactor end, enter anoxic reacter, denitrifying bacteria in this mud utilizes the nitrate of remaining organism and backflow to carry out denitrification denitrogenation, after denitrification reaction completes, enter aerobic reactor, it is that nitrate while polyP bacteria carries out aerobic suction phosphorus by the mineralized nitrogen in waste water that nitrifier in this mud carries out nitrification, remaining organism is also oxidized by aerobic bacteria at this, finally by settling tank, carry out mud-water separation, water outlet discharge, the sludge part of precipitation returns to anaerobic reactor, part is discharged with rich phosphorus excess sludge.But, in returned sluge, with a large amount of nitrate radicals, destroy anaerobic environment, unfavorable to system dephosphorization, the destruction of also having caused efficient bacterium growing environment in each reactor, mud can not be fully utilized, and has reduced processing efficiency.
Therefore, how to provide a kind of sectional type A
2/ O activated sludge process reaction unit, makes the quantity of its bacterial classification of remaining valid, and improves utilization ratio and the processing efficiency of mud, becomes those skilled in the art's important technological problems urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides a kind of sectional type A
2/ O activated sludge process reaction unit, to reach the quantity that makes its bacterial classification of remaining valid, improves the utilization ratio of mud and the object of processing efficiency.
For achieving the above object, the invention provides following technical scheme:
A kind of sectional type A
2/ O activated sludge process reaction unit, comprise reaction tank, also comprise at least two device for separating mud and water, at least two described device for separating mud and water are arranged in described reaction tank, along water (flow) direction, described reaction tank is separated into anaerobic pond successively, anoxic pond and Aerobic Pond, described device for separating mud and water comprises the first overflow plate being arranged in order along water (flow) direction, flow deflector and the second overflow plate, the both sides of described the first overflow plate and described flow deflector be all connected with the pool wall of described reaction tank and bottom all with at the bottom of the pond of described reaction tank, keep certain distance, the both sides of described the second overflow plate and bottom are connected respectively with at the bottom of the pool wall of described reaction tank and pond, the top of described the first overflow plate and described the second overflow plate is lower than the upper edge of described reaction tank, the top of described flow deflector is higher than the top of described the first overflow plate and described the second overflow plate, between described the first overflow plate and described flow deflector, form descending water channel, between described flow deflector and described the second overflow plate, form up water channel, described descending water channel is communicated with the place, bottom of described up water channel at described flow deflector.
Preferably, described the first overflow plate comprises the first mainboard of vertical setting and is connected to described first mainboard bottom the first traverse baffle, more close described the second overflow plate in one end that to be obtuse angle and described the first traverse baffle be connected with described the first mainboard away from more described first traverse baffle in one end of described the first mainboard of the angle between described the first mainboard and described the first traverse baffle.
Preferably, described the second overflow plate comprises the second mainboard of vertical setting and is connected to the second traverse baffle on described the second mainboard, the both sides of described the second mainboard and bottom are connected at the bottom of respectively at the pool wall of described reaction tank and pond, described the second traverse baffle is arranged on described the second mainboard near a side of described flow deflector, described the second traverse baffle starts downward-sloping from it with one end that described the second mainboard is connected, described the second traverse baffle jointly forms mud away from one end of described the second mainboard and described the first traverse baffle away from one end of described the first mainboard and falls after rise mouthful.
Preferably, described the first overflow plate, described flow deflector and described the second overflow plate all adopt stainless material to make.
Preferably, the surface of described the first overflow plate, described flow deflector and described the second overflow plate all scribbles rust-inhibiting paint.
Preferably, in described Aerobic Pond, be provided with a plurality of described device for separating mud and water.
From technique scheme, can find out sectional type A provided by the invention
2/ O activated sludge process reaction unit, comprise reaction tank, also comprise at least two device for separating mud and water, at least two device for separating mud and water are arranged in reaction tank, along water (flow) direction, reaction tank is separated into anaerobic pond successively, anoxic pond and Aerobic Pond, device for separating mud and water comprises the first overflow plate being arranged in order along water (flow) direction, flow deflector and the second overflow plate, the both sides of the first overflow plate and flow deflector be all connected with the pool wall of reaction tank and bottom all with at the bottom of the pond of reaction tank, keep certain distance, the both sides of the second overflow plate and bottom are connected respectively with at the bottom of the pool wall of reaction tank and pond, the top of the first overflow plate and the second overflow plate is lower than the upper edge of reaction tank, the top of flow deflector is higher than the top of the first overflow plate and the second overflow plate, between the first overflow plate and flow deflector, form descending water channel, between flow deflector and the second overflow plate, form up water channel, descending water channel is communicated with the place, bottom of up water channel at flow deflector, by device for separating mud and water is set, can slow down the velocity of flow of muddy water mixed solution in each reaction tank, make it to stop time enough at each reaction tank, react fully, simultaneously, device for separating mud and water at muddy water mixed solution through out-of-date, can rely on precipitating action to make it return to original reaction tank part sludge retention, reduced like this blending of the mud that contains different strain, the quantity that has kept effective flora of each reaction tank, improved the utilization ratio of mud, and then the processing efficiency improving.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the device for separating mud and water that Fig. 1 provides for the embodiment of the present invention;
The sectional type A that Fig. 2 provides for the embodiment of the present invention
2the structural representation of/O activated sludge process reaction unit.
Embodiment
The invention provides a kind of sectional type A
2/ O activated sludge process reaction unit, to reach the quantity that makes its bacterial classification of remaining valid, improves the utilization ratio of mud and the object of processing efficiency.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1 and Fig. 2, the structural representation of the device for separating mud and water that Fig. 1 provides for the embodiment of the present invention; The sectional type A that Fig. 2 provides for the embodiment of the present invention
2the structural representation of/O activated sludge process reaction unit.Arrow direction indication in Fig. 1 and Fig. 2 is water (flow) direction.
The invention provides a kind of sectional type A
2/ O activated sludge process reaction unit, comprise reaction tank, also comprise at least two device for separating mud and water, at least two device for separating mud and water are arranged in reaction tank, along water (flow) direction, reaction tank is separated into anaerobic pond 4 successively, anoxic pond 5 and Aerobic Pond 6, device for separating mud and water comprises the first overflow plate 1 being arranged in order along water (flow) direction, flow deflector 2 and the second overflow plate 3, the both sides of the first overflow plate 1 and flow deflector 2 be all connected with the pool wall of reaction tank and bottom all with at the bottom of the pond of reaction tank, keep certain distance, the both sides of the second overflow plate 3 and bottom are connected respectively with at the bottom of the pool wall of reaction tank and pond, the top of the first overflow plate 1 and the second overflow plate 3 is lower than the upper edge of reaction tank, the top of flow deflector 2 is higher than the top of the first overflow plate 1 and the second overflow plate 3, between the first overflow plate 1 and flow deflector 2, form descending water channel, between flow deflector 2 and the second overflow plate 3, form up water channel, descending water channel is communicated with the place, bottom of up water channel at flow deflector 2.
Compared with prior art, sectional type A provided by the invention
2/ O activated sludge process reaction unit, by device for separating mud and water is set, can slow down the velocity of flow of muddy water mixed solution in each reaction tank, make it to stop time enough at each reaction tank, react fully, simultaneously, device for separating mud and water at muddy water mixed solution through out-of-date, can rely on precipitating action to make it return to original reaction tank part sludge retention, reduced like this blending of the mud that contains different strain, the quantity that has kept effective flora of each reaction tank, has improved the utilization ratio of mud, and then the processing efficiency improving.
In order further to slow down flow velocity, be convenient to muddy water mixed solution turns to from descending water channel simultaneously, in embodiments of the present invention, the first overflow plate 1 comprises the first mainboard 11 of vertical setting and is connected to angle between first mainboard 11 bottom the first traverse baffle 12, the first mainboards 11 and the first traverse baffle 12 more close the second overflow plate 3 in one end that to be obtuse angle and the first traverse baffle 12 be connected with the first mainboard 11 compared with the first traverse baffle 12 away from one end of the first mainboard 11.
Further, the second overflow plate 3 comprises the second mainboard 31 of vertical setting and is connected to the second traverse baffle 32 on the second mainboard 31, the both sides of the second mainboard 31 and bottom are connected at the bottom of respectively at the pool wall of reaction tank and pond, the second traverse baffle 32 is arranged on the second mainboard 31 near a side of flow deflector 2, the second traverse baffle 32 starts downward-sloping from it with one end that the second mainboard 31 is connected, the second traverse baffle 32 jointly forms mud away from one end of the second mainboard 31 and the first traverse baffle 12 away from one end of the first mainboard 11 and falls after rise mouthful, by being set, the second traverse baffle 32 coordinates with the first traverse baffle 12, the flow velocity of mud mixture can slowed down, when being convenient to sludge settling, contributing to mud mixture to change flows to, from descending become up, and, the end of the first traverse baffle 12 and the second traverse baffle 32 has jointly formed mud and has fallen mouth after rise, be convenient to mud and return to original reaction tank.
Because the first overflow plate 1, flow deflector 2 and the second overflow plate 3 are immersed in mud mixture throughout the year, easily, by sewage corrosion, affect the effect of sludge retention, therefore, in embodiments of the present invention, the first overflow plate 1, flow deflector 2 and the second overflow plate 3 all adopt stainless material to make.Certainly, also can adopt other method to reach rot-resistant object, such as, in the another kind of embodiment of the present invention, the surface of the first overflow plate 1, flow deflector 2 and the second overflow plate 3 all scribbles rust-inhibiting paint.
In order further to hold back mud, reduce the blending of the mud that contains different strain, in embodiments of the present invention, in Aerobic Pond 6, be provided with a plurality of device for separating mud and water, by a plurality of device for separating mud and water being set Aerobic Pond 6 is interior, can mud mixture from Aerobic Pond 6 to settling tank motion process through repeatedly holding back, further reduced the blending of the mud of different strain, improved the utilization ratio of mud.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a sectional type A
2/ O activated sludge process reaction unit, comprise reaction tank, it is characterized in that, also comprise at least two device for separating mud and water, at least two described device for separating mud and water are arranged in described reaction tank, along water (flow) direction, described reaction tank is separated into anaerobic pond (4) successively, anoxic pond (5) and Aerobic Pond (6), described device for separating mud and water comprises the first overflow plate (1) being arranged in order along water (flow) direction, flow deflector (2) and the second overflow plate (3), the both sides of described the first overflow plate (1) and described flow deflector (2) be all connected with the pool wall of described reaction tank and bottom all with at the bottom of the pond of described reaction tank, keep certain distance, the both sides of described the second overflow plate (3) and bottom are connected respectively with at the bottom of the pool wall of described reaction tank and pond, the top of described the first overflow plate (1) and described the second overflow plate (3) is lower than the upper edge of described reaction tank, the top of described flow deflector (2) is higher than the top of described the first overflow plate (1) and described the second overflow plate (3), between described the first overflow plate (1) and described flow deflector (2), form descending water channel, between described flow deflector (2) and described the second overflow plate (3), form up water channel, described descending water channel is communicated with the place, bottom of described up water channel at described flow deflector (2).
2. sectional type A according to claim 1
2/ O activated sludge process reaction unit, it is characterized in that, described the first overflow plate (1) comprises first mainboard (11) of vertical setting and is connected to described the first mainboard (11) bottom the first traverse baffle (12), more close described the second overflow plate in one end (3) that to be obtuse angle and described the first traverse baffle (12) be connected with described the first mainboard (11) away from more described first traverse baffle in one end (12) of described the first mainboard (11) of the angle between described the first mainboard (11) and described the first traverse baffle (12).
3. sectional type A according to claim 2
2/ O activated sludge process reaction unit, it is characterized in that, described the second overflow plate (3) comprises second mainboard (31) of vertical setting and is connected to the second traverse baffle (32) on described the second mainboard (31), the both sides of described the second mainboard (31) and bottom are connected at the bottom of respectively at the pool wall of described reaction tank and pond, described the second traverse baffle (32) is arranged on described the second mainboard (31) near a side of described flow deflector (2), described the second traverse baffle (32) starts downward-sloping from it with one end that described the second mainboard (31) is connected, described the second traverse baffle (32) jointly forms mud away from one end of described the second mainboard (31) and described the first traverse baffle (12) away from one end of described the first mainboard (11) and falls after rise mouthful.
4. sectional type A according to claim 1
2/ O activated sludge process reaction unit, is characterized in that, described the first overflow plate (1), described flow deflector (2) and described the second overflow plate (3) all adopt stainless material to make.
5. sectional type A according to claim 1
2/ O activated sludge process reaction unit, is characterized in that, the surface of described the first overflow plate (1), described flow deflector (2) and described the second overflow plate (3) all scribbles rust-inhibiting paint.
6. sectional type A according to claim 1
2/ O activated sludge process reaction unit, is characterized in that, is provided with a plurality of described device for separating mud and water in described Aerobic Pond (6).
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| CN201410201285.5A CN103922476B (en) | 2014-05-13 | 2014-05-13 | A kind of sectional type A 2/ O activated sludge process reaction unit |
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| CN201410201285.5A CN103922476B (en) | 2014-05-13 | 2014-05-13 | A kind of sectional type A 2/ O activated sludge process reaction unit |
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| CN103922476B CN103922476B (en) | 2015-12-23 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587351A (en) * | 2016-12-29 | 2017-04-26 | 聚光科技(杭州)股份有限公司 | Treatment device and method for high ammonia-nitrogen wastewater |
| CN106904796A (en) * | 2017-04-20 | 2017-06-30 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type SSMBBR sewage disposal systems and processing method |
| CN106927638A (en) * | 2017-04-20 | 2017-07-07 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type MBBR sewage disposal systems and processing method |
| CN107364969A (en) * | 2017-08-16 | 2017-11-21 | 贵州博凡环境科技有限公司 | The energy-saving sewage processing method and its device of a kind of high-efficient denitrification and dephosphorization |
| CN108358314A (en) * | 2018-03-08 | 2018-08-03 | 中国市政工程中南设计研究总院有限公司 | Sludge closes on reflux bioreactor facility in combination and application |
| CN110902829A (en) * | 2019-12-09 | 2020-03-24 | 成都达源环保工程有限公司 | Tower type multi-stage circulation sewage treatment equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005161135A (en) * | 2003-11-28 | 2005-06-23 | Best Tech:Kk | Apparatus and method for advanced treatment of wastewater |
| CN1850655A (en) * | 2006-05-31 | 2006-10-25 | 清华大学 | Baffle-board reactor and method for treating sewage by using it |
| CN101205108A (en) * | 2007-07-16 | 2008-06-25 | 王鹤立 | Highly effective composite hydrolytic acidation cell having both sewage treatment and sludge reduction functions |
| CN101205100A (en) * | 2007-12-18 | 2008-06-25 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN203946951U (en) * | 2014-05-13 | 2014-11-19 | 中国市政工程东北设计研究总院 | A kind of sectional type A 2/ O activated sludge process reaction unit |
-
2014
- 2014-05-13 CN CN201410201285.5A patent/CN103922476B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005161135A (en) * | 2003-11-28 | 2005-06-23 | Best Tech:Kk | Apparatus and method for advanced treatment of wastewater |
| CN1850655A (en) * | 2006-05-31 | 2006-10-25 | 清华大学 | Baffle-board reactor and method for treating sewage by using it |
| CN101205108A (en) * | 2007-07-16 | 2008-06-25 | 王鹤立 | Highly effective composite hydrolytic acidation cell having both sewage treatment and sludge reduction functions |
| CN101205100A (en) * | 2007-12-18 | 2008-06-25 | 华南理工大学 | Integral combined process treatment reactor for city sewage |
| CN203946951U (en) * | 2014-05-13 | 2014-11-19 | 中国市政工程东北设计研究总院 | A kind of sectional type A 2/ O activated sludge process reaction unit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106587351A (en) * | 2016-12-29 | 2017-04-26 | 聚光科技(杭州)股份有限公司 | Treatment device and method for high ammonia-nitrogen wastewater |
| CN106904796A (en) * | 2017-04-20 | 2017-06-30 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type SSMBBR sewage disposal systems and processing method |
| CN106927638A (en) * | 2017-04-20 | 2017-07-07 | 成都孚华环保科技有限公司 | A kind of multilevel deflector-type MBBR sewage disposal systems and processing method |
| CN107364969A (en) * | 2017-08-16 | 2017-11-21 | 贵州博凡环境科技有限公司 | The energy-saving sewage processing method and its device of a kind of high-efficient denitrification and dephosphorization |
| CN108358314A (en) * | 2018-03-08 | 2018-08-03 | 中国市政工程中南设计研究总院有限公司 | Sludge closes on reflux bioreactor facility in combination and application |
| CN108358314B (en) * | 2018-03-08 | 2023-05-05 | 中国市政工程中南设计研究总院有限公司 | Sludge near reflux bioreactor, combined facility and application thereof |
| CN110902829A (en) * | 2019-12-09 | 2020-03-24 | 成都达源环保工程有限公司 | Tower type multi-stage circulation sewage treatment equipment |
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| CN103922476B (en) | 2015-12-23 |
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Address after: 130061 Changchun workers and peasants Road, Jilin, No. 618 Patentee after: CHINA NORTHEAST MUNICIPAL ENGINEERING DESIGN & RESEARCH INSTITUTE CO., LTD. Address before: 130061 Changchun workers and peasants Road, Jilin, No. 618 Patentee before: China Northeast Centrol Design & Research Institute of Municipal Engineering |