CN202744375U - Biological reaction settling pond for sewage treatment - Google Patents
Biological reaction settling pond for sewage treatment Download PDFInfo
- Publication number
- CN202744375U CN202744375U CN 201220379249 CN201220379249U CN202744375U CN 202744375 U CN202744375 U CN 202744375U CN 201220379249 CN201220379249 CN 201220379249 CN 201220379249 U CN201220379249 U CN 201220379249U CN 202744375 U CN202744375 U CN 202744375U
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- CN
- China
- Prior art keywords
- subregion
- subarea
- settling
- biological reaction
- biological respinse
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- 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.)
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Abstract
The utility model discloses a biological reaction settling pond for sewage treatment. The biological reaction settling pond for sewage treatment comprises a pond body, wherein the pond body comprises a primary settling subarea, a biological reaction subarea and a secondary settling subarea. The biological reaction settling pond for sewage treatment is characterized in that a channel used for connecting the primary settling subarea and the biological reaction subarea and a channel used for connecting the biological reaction subarea and the secondary settling subarea are respectively arranged in the pond body. The primary settling subarea and the secondary settling subarea are respectively located on two sides of the pond body, and the biological reaction subarea is located between the primary settling subarea and the secondary settling subarea. Compared with the prior art, the biological reaction settling pond organically combines a primary settling system, a biological reaction system, a secondary settling system and a sludge recycle system which are used in the typical sewage treatment process, and accordingly reduces the total floor space of the functional areas used in the typical sewage treatment process; is not needed to be provided with pipelines or bends and reduces head loss; and simultaneously reduces building construction and grooving difficulty and slotted side slope support complexity.
Description
Technical field
The utility model relates to the technical field of sewage disposal, relates in particular to a kind ofly to utilize precipitation-biological respinse-precipitation and be used for the biological respinse settling tank of sewage disposal.
Background technology
Because water environment pollution aggravation and energy shortage for the further development of adapt to economic development and the raising of living standards of the people, improve Regional Water Environment and hygienic condition, and sewage is processed and reuse, receive the more and more higher concern of people.At present, municipal sewage plant's typical process flow is: water inlet-grid-settling pit-primary sedimentation pond-biological reaction tank-secondary sedimentation basins-sterilization.At present, because primary sedimentation pond, biological reaction tank and secondary sedimentation basins mostly adopt pipeline to connect, therefore mostly all exist and build the large problem of floor space, in situation about being becoming tight urban land day, this problem particularly highlights, and has seriously restricted carrying out of current town sewage work for the treatment of.And use pipeline to connect, and can greatly increase the head loss of Sewage treatment systems, cause the Sewage Plant head loss to increase, be unfavorable for energy-conservation.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of one-piece construction occupation of land little for above-mentioned prior art present situation, and is conducive to the energy-conservation biological respinse settling tank in order to sewage disposal.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of biological respinse settling tank for sewage disposal, comprise the pond body, this pond body comprises primary deposition subregion, biological respinse subregion and secondary sedimentation subregion, it is characterized in that arranging respectively in this pond body the channel that connects primary deposition subregion and biological respinse subregion, and the channel that connects biological respinse subregion and secondary sedimentation subregion.Primary deposition subregion and secondary sedimentation subregion lay respectively at the both sides of described pond body, and the biological respinse subregion is between primary deposition subregion and secondary sedimentation subregion.Be provided with mud external reflux pump house and excess sludge pump house between biological respinse and the secondary sedimentation district, described mud external reflux pump house and excess sludge pump house are built jointly.Mud external reflux pump house is arranged in the bio-reaction zone, and near the central position of secondary sedimentation district one side, the excess sludge pump house is arranged on the secondary sedimentation district, near the central position of bio-reaction zone one side.
Compared with prior art, the utility model organically combines the primary deposition in the exemplary process technique of sewage, biological respinse, secondary sedimentation and sludge reflux system, connect by channel between the structures, reduced total floor space of above functional zone in the typical sewage treatment process; Pipeline and elbow need not be set, reduce head loss, so that current are more smooth and easy; The difficulty of structures construction fluting and the complicacy of fluting slope retaining have been reduced simultaneously.The utility model is aspect operating management and monitoring, and is also convenient than ordinary method.
Description of drawings
Fig. 1 is the plot plan that the utility model is realized biological respinse settling tank structures.
Embodiment
Below in conjunction with accompanying drawing and example the utility model is further described.
A kind of biological respinse settling tank for sewage disposal is provided with channel 2,3 and pond body 1 is divided into primary deposition district 4, bio-reaction zone 5 and secondary sedimentation district 6 in its pond body 1.The channel 2 interior channel gates that arrange switch by gate opening/closing, realize surmounting primary deposition district 4.Mud external reflux pump house 7 is built jointly with excess sludge pump house 8, between bio-reaction zone 5 and secondary sedimentation district 6; Mud external reflux pump house 7 is arranged in the bio-reaction zone, near the central position of secondary sedimentation district 6 one sides.Excess sludge pump house 8 is arranged on secondary sedimentation district 6, near the central position of bio-reaction zone 5 one sides.
Its difference with the prior art of the utility model is: Chi Tike arranges the three functions subregion, finishes respectively the function of primary deposition, biological respinse and secondary sedimentation, adopts channel and pool wall pre-opened hole or hole, weir to realize that sewage passes through each function division successively.
Whole pond body layout be "
-
-
"; "
" represent that the primary deposition subregion arranges the group number of primary sedimentation pond, "
" the group number of the reaction tank that arranges of expression biological respinse subregion, "
" represent that the secondary sedimentation subregion arranges the group number of secondary sedimentation basins; Wherein,
,
,
Be random natural number, and
,
Be not zero simultaneously,
Non-vanishing.Concrete value is determined according to the design scale of sewage work.The water outlet of primary deposition subregion by the channel uniform water distribution to the biological respinse subregion
The seat biological reaction tank, the bio-reaction zone water outlet by irrigation channel distribution to the secondary sedimentation district
The seat secondary sedimentation basins.The pond body all is arranged symmetrically with according to water (flow) direction in the pond body separately in each subregion.
Described three functions subregion, the pond type is the rectangle form pool type, and the three functions subregion organically is incorporated in the rectangular frame in the plane.Primary deposition subregion and secondary sedimentation subregion lay respectively at the both sides of described pond body, and the biological respinse subregion is positioned at the centre of described pond body.
Water (flow) direction is vertical with water (flow) direction in the biological respinse subregion in the primary deposition subregion; Water (flow) direction is parallel or vertical with water (flow) direction in the secondary sedimentation subregion in the biological respinse subregion; Water (flow) direction is parallel or vertical with water (flow) direction in the secondary sedimentation basins in the primary sedimentation pond subregion.
Mud external reflux pump house and excess sludge pump house are built jointly, between bio-reaction zone and secondary sedimentation district.Mud external reflux pump house is arranged in the bio-reaction zone, near the central position of secondary sedimentation district one side.The excess sludge pump house is arranged on the secondary sedimentation district, near the central position of bio-reaction zone one side.
During use, if when water quality changes or the primary deposition subregion breaks down, namely
When being not equal to zero, can open and close by the channel gate that primary deposition subregion irrigation channel arranges, realize surmounting the primary deposition subregion.The water inlet of primary deposition subregion directly enters the biological respinse pool unit.
During use, can according to water quality situation or place situation, select " primary deposition subregion-biological respinse subregion-secondary sedimentation subregion ", " primary deposition subregion-biological respinse subregion " to reach " biological respinse subregion-secondary sedimentation subregion ".Namely "
≠ 0,
≠ 0,
≠ 0 ", "
≠ 0,
≠ 0,
=0 " reaches
=0,
≠ 0,
≠ 0, realize the flexible combination of each functional unit.
The utility model pond body structure can avoid each function division by pipeline water-in and water-out and water distribution, and pipeline and elbow need not be set, and reduces head loss; Owing to adopt integrated design, reduced the floor space of pond body; The difficulty of structures construction fluting and the complicacy of fluting slope retaining have been reduced simultaneously.
The below illustrates the benefit of the utility model small accommodation area and energy-conservation aspect:
The floor space of sewage treatment unit is floor space and the structures peripheral path sum of area of structures, and establishing the sewage disposal scale is 30,000 m
3/ d adopts conventional layout, the about S of floor space
1=11610m
2; Adopt the utility model pond body, the about S of floor space
2=10215m
2
So adopt the occupation of land saving rate of the utility model pond body to be:
η=
=
=12%
Head loss is comprised of frictional head loss and local head loss, because the head loss of channel and straight tube is less, so linear loss can be ignored, only need consider local head loss.Sewage process primary deposition pool unit, biological respinse pool unit and secondary sedimentation pool unit process channel, aperture and hole, weir or channel, pipeline, aperture, hole, weir.If the sewage disposal scale is 30,000 m
3/ d during energy saving calculation, compares according to flow velocity is identical in pipeline and the channel between each function division.
When adopting conventional the layout, the head loss h of pipeline
1=
, when adopting the utility model pond body, channel head loss h
2=
So, the fractional energy savings that adopts the utility model structure be η=
* %=
* %=35.9%.
As above as can be known, adopt the utility model pond body can greatly reduce the head loss of pipeline, thereby reduce the energy consumption of sewage work, realize energy-conservation purpose.
Claims (5)
1. biological respinse settling tank that is used for sewage disposal, comprise the pond body, this pond body comprises primary deposition subregion, biological respinse subregion and secondary sedimentation subregion, it is characterized in that arranging respectively in this pond body the channel that connects primary deposition subregion and biological respinse subregion, and the channel that connects biological respinse subregion and secondary sedimentation subregion.
2. the biological respinse settling tank for sewage disposal according to claim 1, it is characterized in that: primary deposition subregion and secondary sedimentation subregion lay respectively at the both sides of described pond body, and the biological respinse subregion is between primary deposition subregion and secondary sedimentation subregion.
3. the biological respinse settling tank for sewage disposal according to claim 1, it is characterized in that: be provided with mud external reflux pump house and excess sludge pump house between biological respinse and the secondary sedimentation district, described mud external reflux pump house and excess sludge pump house are built jointly.
4. the biological respinse settling tank for sewage disposal according to claim 3, it is characterized in that: mud external reflux pump house is arranged in the bio-reaction zone, central position near secondary sedimentation district one side, the excess sludge pump house is arranged on the secondary sedimentation district, near the central position of bio-reaction zone one side.
5. the biological respinse settling tank for sewage disposal according to claim 4, it is characterized in that: primary deposition subregion, biological respinse subregion and secondary sedimentation subregion all adopt rectangular configuration, and described pond body also is rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379249 CN202744375U (en) | 2012-08-02 | 2012-08-02 | Biological reaction settling pond for sewage treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220379249 CN202744375U (en) | 2012-08-02 | 2012-08-02 | Biological reaction settling pond for sewage treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202744375U true CN202744375U (en) | 2013-02-20 |
Family
ID=47703804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220379249 Expired - Fee Related CN202744375U (en) | 2012-08-02 | 2012-08-02 | Biological reaction settling pond for sewage treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202744375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130095A (en) * | 2015-07-15 | 2015-12-09 | 上海市政工程设计研究总院（集团）有限公司 | Raw water biological pre-treatment system and raw water biological pre-treatment method |
-
2012
- 2012-08-02 CN CN 201220379249 patent/CN202744375U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130095A (en) * | 2015-07-15 | 2015-12-09 | 上海市政工程设计研究总院（集团）有限公司 | Raw water biological pre-treatment system and raw water biological pre-treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20210802 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |