CN104045150A - Anaerobic acidification hydrolysis sedimentation tank for sewage pretreatment - Google Patents
Anaerobic acidification hydrolysis sedimentation tank for sewage pretreatment Download PDFInfo
- Publication number
- CN104045150A CN104045150A CN201310081316.3A CN201310081316A CN104045150A CN 104045150 A CN104045150 A CN 104045150A CN 201310081316 A CN201310081316 A CN 201310081316A CN 104045150 A CN104045150 A CN 104045150A
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- anaerobic acidification
- sewage
- hydrolysis area
- acidification hydrolysis
- settling region
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- Y02W10/12—
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses an integrated anaerobic acidification hydrolysis sedimentation tank, which mainly comprises tank bodies. The tank is characterized in that: each tank body is internally provided with an anaerobic acidification hydrolysis zone, a settling zone is arranged at the upper part of the anaerobic acidification hydrolysis zone, a water channel of the anaerobic acidification hydrolysis zone is disposed below the settling zone, and the anaerobic acidification hydrolysis zone and the settling zone are communicated by regulating weir gates. The tank body is also provided with a sludge channel communicated with the settling zone, and at the same time is connected to the anaerobic acidification hydrolysis zones through a sludge reflux pump. Compared with the prior art, the invention organically integrates an anaerobic acidification hydrolysis tank and a settling tank typically for sewage pretreatment, thus reducing the floor area of a typical sewage pretreatment functional area, reducing pipeline, elbows and other fittings, reducing head loss, and lowering energy consumption. At the same time, the structure construction difficulty and slotted slope support complexity are reduced, and the construction progress is accelerated.
Description
Technical field
The present invention relates to the technical field of sewage disposal, be specifically related to a kind of for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage.
Background technology
Due to water environment pollution aggravation and energy shortage, sewage is processed and reuse, receive the concern that people are more and more higher, require also more and more higher to Industrial Wastewater Treatment, because industrial biodegradability is poor, in order to improve Biodegradability of Wastewater, in general sewage treatment process, can increase anaerobism pre-treatment, improve the biodegradability of waste water, guarantee the effect of biological treatment.
Pretreatment technology typical process is: → anaerobic acidification hydrolytic tank → intermediate sedimentation pond → and, settling tank mud is back to hydrolytic tank again.At present because anaerobic acidification hydrolytic tank 8, intermediate sedimentation pond 9 are arranged separately, and adopt pipeline to connect.Therefore mostly exist and build the large problem of floor space, the in the situation that of being becoming tight in urban land day, this problem particularly highlights; And adopt pipeline to connect, and can increase the head loss of Sewage treatment systems, cause Sewage Plant head loss to increase, be unfavorable for energy-conservation.
Summary of the invention
An object of the present invention is to provide for above-mentioned prior art present situation a kind of one-piece construction take up an area little, be conducive to energy-conservation in order to the pretreated integral anaerobic acidification hydrolization of sewage settling tank, anaerobic acidification hydrolytic tank and settling tank are combined in to one, save and take up an area to greatest extent; The pipeline simultaneously reducing between structures connects, and reduces energy consumption.
For achieving the above object, the technical solution used in the present invention is: a kind of for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, mainly comprise pond body, it is characterized in that: in the body of described pond, be provided with anaerobic acidification hydrolysis area, top, anaerobic acidification hydrolysis area is provided with settling region, below, settling region arranges the aquaporin of crossing of anaerobic acidification hydrolysis area, between anaerobic acidification hydrolysis area and settling region, is communicated with by weir gate.Described pond body is also provided with the mud channel being communicated with settling region, is connected by sludge reflux pump with anaerobic acidification hydrolysis area simultaneously.This anaerobic acidification hydrolytic precipitation pool comprises the parallel at least two group pond bodies that arrange, and mud channel, sludge reflux pump house and inlet well are arranged between two groups of adjacent pool bodies.Anaerobic acidification hydrolysis area adopts rotary type gallery layout pattern, comprises straight-line segment and the arc section that is positioned at straight-line segment two ends; Settling region adopts flat flow rectangle pattern, settling region is arranged in the top of the straight-line segment of anaerobic acidification hydrolysis area, anaerobic acidification hydrolysis area internal upper part sewage enters settling region by weir gate and carries out mud-water separation, bottom sewage passed through aquaporin and flowed at anaerobic acidification hydrolysis area internal recycle, ensured acidification hydrolization effect.Mud channel is arranged on two groups of midfeather tops between the body of pond.Sludge reflux pump house and inlet well are separately positioned between the arc end of body anaerobic acidification hydrolysis area, two groups of ponds.
The present invention is arranged in settling region in anaerobic acidification hydrolysis area, two regions connect by weir gate, anaerobic acidification hydrolysis area internal upper part sewage enters settling region by adjustable checkgate control and carries out mud-water separation, bottom sewage flows at anaerobic acidification hydrolysis area internal recycle by reserved passageway always, ensure acidification hydrolization effect, both are organically incorporated in a pond body, and its advantage is, by several function structures organic combinations, to have reduced the floor space in typical sewage preprocessing function district; Reduce the accessory settings such as pipeline and elbow, reduce head loss, reduce energy consumption, make current more smooth and easy; Pretreatment unit is reduced to structures simultaneously, is convenient to operating management and monitoring, reduce the difficulty of structures construction and the complicacy of fluting slope retaining, accelerating construction progress simultaneously.
Brief description of the drawings
Fig. 1 is the upper layer plane reference drawing of anaerobic acidification hydrolytic precipitation pool of the present invention.
Fig. 2 is the lower layer plane reference drawing of anaerobic acidification hydrolytic precipitation pool of the present invention.
Fig. 3 is that anaerobic acidification hydrolytic precipitation pool of the present invention is analysed and observe reference drawing.
Fig. 4 is the general layout reference drawing of prior art anaerobic acidification hydrolysis+settling tank.
Fig. 5 is the general layout reference drawing of anaerobic acidification hydrolytic precipitation pool of the present invention.
Embodiment
Below in conjunction with accompanying drawing and example, the present invention is further described.
The present invention mainly comprises pond body, in described pond body 1, is provided with anaerobic acidification hydrolysis area 2, and the available depth of anaerobic acidification hydrolysis area 2 is H1, H1=5～10m; 2 tops, anaerobic acidification hydrolysis area are provided with settling region 3,3 belows, settling region arrange the aquaporin of crossing of anaerobic acidification hydrolysis area 2, crossing aquaporin virtual height is H2, in order to ensure that sewage circulates in anaerobic acidification hydrolysis area 2, ensure good acidification hydrolization effect, crossing aquaporin height H 2 must meet certain requirements, preferably, H2=(
~
) H1; Between anaerobic acidification hydrolysis area 2 and settling region 3, be communicated with by adjustable checkgate.This integral anaerobic acidification hydrolization settling tank comprises between parallel 1, two group of adjacent pool body of at least two group pond bodies arranging mud channel 6, sludge reflux pump house 7 and inlet well 4 is set.Mud channel 6 is communicated with settling region 3, is communicated with by the sludge reflux pump in sludge reflux pump house 7 with anaerobic acidification hydrolysis area 2 simultaneously.Anaerobic acidification hydrolysis area 2 adopts rotary type gallery layout pattern, width of corridor is B1, width of corridor B1=5～12m, and rotary type gallery comprises straight-line segment and is positioned at the arc section at straight-line segment two ends, and at rotary type gallery straight-line segment, underwater scooter is set, ensure that sewage flows at gallery internal recycle; Settling region 3 adopts flat flow rectangle pattern, and settling region is arranged in the top of the straight-line segment of anaerobic acidification hydrolysis area, in order to ensure the propelling effect of submersible agitator and to enter settling region water flow stationary, reserves certain straight-line segment apart from B2, B2 >=B1 at gallery two ends.Mud channel 6 is arranged on two groups of midfeather tops between the body of pond.Sludge reflux pump house 7 and inlet well 4 are separately positioned between the arc end of body anaerobic acidification hydrolysis area, two groups of ponds 2.Inlet well 4 is connected with the outlet canal 5 of settling region 3 by gate.
1 group of anaerobic acidification hydrolytic precipitation pool is a pond body, and pond body quantity is
, anaerobic acidification hydrolysis area rotary type gallery quantity is
, settling region lattice quantity is
.Described pond body quantity is
,
1,2,4; Anaerobic acidification hydrolysis rotary type gallery district is set in each pond body, in each rotary type gallery district, anaerobic acidification hydrolysis area, gallery quantity is set and is
,
2 or 4; Settling region lattice quantity is
,
be
1 or 2 times, 1 or 2 settling regions can be set on the rotary type gallery of each anaerobic acidification hydrolysis area.
Pond body arranges two major function subregions, completes respectively the function of anerobic sowage acidification hydrolization and sludge settling.Need dispose of sewage and enter the anaerobic acidification hydrolysis area that adopts rotary type gallery layout pattern, carry out the pre-treatment of sewage; Sewage enters settling region by adjustable weir gate 10 after treatment, carries out mud-water separation, and after mud-water separation, sewage flows into lower road processing unit processes; After precipitation, mud enters mud by the scraping and sucking machine that is arranged on settling region the mud canal that is arranged on middle part; The mud of mud canal enters the mud pump house that is arranged on end, by the return sludge pump that arranges by sludge reflux to anaerobic acidification hydrolysis area, keep sludge concentration in pond; Residual sludge pump is set in pump house simultaneously, as required by unnecessary mud discharging to sludge treatment unit.
Described two major function subregions, pond, anaerobic acidification hydrolysis area type is rotary type gallery, settling region rectangle form pool type, settling region is arranged in straight line gallery top, anaerobic acidification hydrolysis area, and aquaporin was reserved in bottom.Top sewage enters settling region by adjustable checkgate control and carries out mud-water separation, and bottom sewage flows at anaerobic acidification hydrolysis area internal recycle by reserved passageway always, ensures acidification hydrolization effect; Two major function subregions are organically incorporated in a pond body.
In order to ensure the homogeneity of settling region water inlet, guarantee sedimentation effect, be arranged side by side 2 adjustable checkgates at every rotary type gallery, regulate anaerobic acidification hydrolysis area sewage to enter settling region processing.According to a particular embodiment of the invention, adjustable checkgate size B3 × H3, B3=1000～3500mm, H3=500～1000mm.In order to ensure to mix homogeneity, adjustable checkgate is arranged in the top of pond body, at the bottom of adjustable checkgate pre-opened hole, is H4 apart from the distance of design water level, H4=500～1000mm.Can regulate by weir gate like this, the water yield that guarantee enters each settling region is relatively even, and current are relatively steady, also can ensure the sedimentation effect of settling region.
Mud pump house and inlet well are arranged between two circular gallerys at two ends, are arranged in one end, all build jointly with pond body, and can arrange and need both transpositions according to total figure.
When use, if when water quality changes, anaerobic acidification hydrolysis area or settling region break down, can be by the gate opening/closing of inlet well and settling region water outlet channel, to realize the surmounting of anaerobic acidification hydrolysis area and settling region, sewage directly enters next processing unit.
Pond of the present invention body structure and decoration form can avoid each function division by pipeline water-in and water-out and water distribution, and pipeline and elbow need not be set, and reduce head loss; Owing to adopting integrated design, reduce the floor space of pond body,, reach energy-conservation and object that save land.The difficulty of structures construction fluting and the complicacy of fluting slope retaining have been reduced simultaneously.
benefit
Illustrate the benefit of occupation of land face saving of the present invention and energy-conservation aspect below:
Floor space be the area of structures and structures peripheral path area and.Sewage disposal scale is 50,000 m
3/ d, adopts conventional layout, the about S of floor space
1=7760m
2, adopt anaerobic acidification hydrolytic precipitation pool of the present invention and decoration form, the about S of floor space
2=5495m
2.
Therefore adopt the occupation of land saving rate of pond of the present invention body and decoration form to be:
η=
=
=29.2%
Head loss is made up of frictional head loss and local head loss, because the head loss of channel and straight tube is less, therefore linear loss can be ignored, only needs to consider the difference of local head loss.Sewage is through primary deposition pool unit, biological respinse pool unit and secondary sedimentation pool unit process channel, Ji Yan hole, aperture or channel, pipeline, aperture, hole, weir.The local loss coefficient of each assembly is as shown in the table:
Note: notebook data is selected from " water supply and drainage design manual " first.
While adopting conventional layout, the head loss of pipeline
H
1=h
local=(1.0+0.50+1.02+0.27+3.0+1.0+0.5+4.0)
=10.79
While adopting pond of the present invention body, channel head loss
H
2=h
local=(1.0+0.5+4.0)
=5.5
Therefore adopt the fractional energy savings of pond of the present invention body and decoration form to be
η=
=
=49%
As above known, adopt pond of the present invention body and decoration form both to save occupation of land, reduce again the head loss of pipeline, thereby reduce the energy consumption of sewage work, realize energy-conservation object.
Claims (10)
1. one kind for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, mainly comprise pond body, it is characterized in that: in the body of described pond, be provided with anaerobic acidification hydrolysis area, top, anaerobic acidification hydrolysis area is provided with settling region, bottom, settling region arranges the aquaporin of crossing of anaerobic acidification hydrolysis area, between anaerobic acidification hydrolysis area and settling region, is communicated with by adjustable checkgate.
2. one according to claim 1, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: the available depth of anaerobic acidification hydrolysis area is H1, available depth H1=5～10m; It is H2 that aquaporin virtual height is crossed in bottom, settling region, H2=(
~
) H1.
3. one according to claim 1, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: described pond body is also provided with the mud channel being communicated with settling region, is connected by sludge reflux pump with anaerobic acidification hydrolysis area simultaneously.
4. one according to claim 1 is for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, it is characterized in that: this anaerobic acidification hydrolytic precipitation pool comprises the parallel at least two group pond bodies that arrange, and mud channel, sludge reflux pump house and inlet well are arranged between two groups of adjacent pool bodies.
5. want one described in 4 for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage according to right, it is characterized in that: anaerobic acidification hydrolysis area adopts rotary type gallery layout pattern, comprise straight-line segment and be positioned at the arc section at straight-line segment two ends; Settling region adopts flat flow rectangle pattern, settling region is arranged in the top of the straight-line segment of anaerobic acidification hydrolysis area, anaerobic acidification hydrolysis area internal upper part sewage enters settling region by adjustable checkgate and carries out mud-water separation, bottom sewage passed through aquaporin and flowed at anaerobic acidification hydrolysis area internal recycle, ensured acidification hydrolization effect.
6. one according to claim 5, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: anaerobic acidification hydrolysis area rotary type width of corridor is B1, width of corridor B1=5～12m; Settling region is B2 at the reserved length of straigh line in the two ends of anaerobic acidification hydrolysis area, B2 >=B1.
7. one according to claim 5, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: every rotary type gallery arranges 2 adjustable checkgates, adjustable checkgate size B3 × H3, B3=1000～3500mm, H3=500～1000mm; Adjustable checkgate is arranged in the top of pond body, at the bottom of adjustable checkgate pre-opened hole, is H4 apart from the distance of design water level, H4=500～1000mm.
8. one according to claim 5, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: mud channel is arranged on two groups of midfeather tops between the body of pond.
9. one according to claim 5, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: sludge reflux pump house and inlet well are separately positioned between the arc end of body anaerobic acidification hydrolysis area, two groups of ponds.
10. one according to claim 1, for the pretreated anaerobic acidification hydrolytic precipitation pool of sewage, is characterized in that: between inlet well and outlet canal, gate is set, realizes surmounting anaerobic acidification hydrolysis area and settling region; Between anaerobic acidification hydrolysis area and outlet canal, gate is set, realizes surmounting settling region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081316.3A CN104045150A (en) | 2013-03-14 | 2013-03-14 | Anaerobic acidification hydrolysis sedimentation tank for sewage pretreatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310081316.3A CN104045150A (en) | 2013-03-14 | 2013-03-14 | Anaerobic acidification hydrolysis sedimentation tank for sewage pretreatment |
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| Publication Number | Publication Date |
|---|---|
| CN104045150A true CN104045150A (en) | 2014-09-17 |
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ID=51498606
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|---|---|---|---|
| CN201310081316.3A Pending CN104045150A (en) | 2013-03-14 | 2013-03-14 | Anaerobic acidification hydrolysis sedimentation tank for sewage pretreatment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104826369A (en) * | 2015-05-12 | 2015-08-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Rotary type horizontal flow sedimentation tank |
| CN106927565A (en) * | 2017-05-09 | 2017-07-07 | 周晓川 | A kind of hydrolysis acidification pool |
| CN111762870A (en) * | 2020-07-09 | 2020-10-13 | 上海市城市建设设计研究总院（集团）有限公司 | Hydrolytic acidification and biological reaction combined treatment tank with surpassing function |
| CN114890539A (en) * | 2022-06-16 | 2022-08-12 | 上海市政工程设计研究总院（集团）有限公司 | Sewage biological treatment pool |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826369A (en) * | 2015-05-12 | 2015-08-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Rotary type horizontal flow sedimentation tank |
| CN106927565A (en) * | 2017-05-09 | 2017-07-07 | 周晓川 | A kind of hydrolysis acidification pool |
| CN111762870A (en) * | 2020-07-09 | 2020-10-13 | 上海市城市建设设计研究总院（集团）有限公司 | Hydrolytic acidification and biological reaction combined treatment tank with surpassing function |
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Application publication date: 20140917 |
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