CN202226714U - Muddy water separation device for aerobic activated sludge - Google Patents
Muddy water separation device for aerobic activated sludge Download PDFInfo
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- CN202226714U CN202226714U CN201120250513XU CN201120250513U CN202226714U CN 202226714 U CN202226714 U CN 202226714U CN 201120250513X U CN201120250513X U CN 201120250513XU CN 201120250513 U CN201120250513 U CN 201120250513U CN 202226714 U CN202226714 U CN 202226714U
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- solid
- water
- level
- liquid separator
- activated sludge
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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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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses a muddy water separation device for aerobic activated sludge, which comprises a plurality of sleeved separators, wherein each separator comprises a solid-liquid separation device and a cylinder body; a gas-guide tube is arranged on the solid-liquid separation device; a baffle is arranged at the lower end of the cylinder body; the solid-liquid separation device is a hollow cone; an extending edge is connected to the lower end of the solid-liquid separation device; a water inlet is formed between the solid-liquid separation device and the cylinder body; and a water outlet pipe is connected between a plurality of the cylinder bodies. The muddy water separation device provided by the utility model has the advantages that the structure is compact; the occupied area is small; no sludge circulation system is required; and surplus sludge can be discharged from an aeration tank directly. Therefore, the muddy water separation has a very high practical application value.
Description
Technical field
The present invention relates to a kind of aerobic activated sludge device for separating mud and water, alternative second pond is realized the aeration tank integrated design as the device for separating mud and water of active sludge in the aerobic aeration pond.
Background technology
In Sewage treatment systems, mud-water separation is taked that usually settling tank is set and is achieved the goal.But general settling tank bottom all need be provided with the mud return-flow system, has increased energy consumption.When the treatment capacity increasing of waste water, when engineered, often need set up second pond, this can cause the rising of cost.
Utility model patent 01214672.2 discloses a kind of settling vessel of dull and stereotyped multiple lattic mud discharge.It is to constitute like this: the bottom of settling vessel be flat, some shelf-shaped be installed become the spoil disposal chamber, form the body refuse concentration compartments between dividing plate and the dividing plate; On the settling vessel tank body, spoil disposal chamber place is equipped with the plurality of rows slurry valve; The top of settling vessel tank body is provided with water inlet pipe and rising pipe.This technical scheme utilizes filtering principle to reach the purpose of mud-water separation, and still, the blockage problem that this very easily causes the spoil disposal chamber has strengthened resistance, has reduced separating effect, and, the flat smooth discharge that also is unfavorable for mud.
Summary of the invention
The invention provides a kind of compact construction, floor space is little, the aerobic activated sludge device for separating mud and water that can apply in a flexible way according to actual engineering.
A kind of aerobic activated sludge device for separating mud and water comprises the separator of several suits.Described separator comprises solid-liquid separator and cylindrical shell; Described solid-liquid separator is provided with gas tube; One end of described gas tube passes the solid-liquid separator wall and flushes with it; The purpose of gas tube setting is in order to prevent that gas from becoming air pocket after the inner-wall surface accumulation of solid-liquid separator, cause the violent disturbance of current after bubble breaks, and then the mud that causes being deposited under the separator floats.Described solid-liquid separator is hollow cone.Described cylindrical shell lower end is provided with baffle plate, and described baffle plate is preferably truncated cone-shaped.
With the separator of being located at outermost is primary separator, and ecto-entad is followed successively by primary separator, second-stage separator, three grades of separators ..., the quantity of separator is decided according to actual requirement of engineering.The available metal support is fixedly connected between the separators at different levels, or links through the through metal suspension.
The lower end of being located at outermost solid-liquid separator and being the one-level solid-liquid separator is connected to prolongs the limit, and the described diameter that prolongs the diameter on limit greater than cylindrical shell, remaining solid-liquid separator need not connect and prolong the limit.The effect of prolonging the limit be when mud when the primary separator, can hold back down most mud, reduce the segregational load of later separation device.
Preferred only need of described gas tube be provided with on the firsts and seconds separator, because after the two-stage separator, bubble is isolated basically, can no longer establish gas tube on three grades and three grades of later separators.The interior diameter of described gas tube is 0.008～0.014 meter, and concrete numerical value can be adjusted according to the aeration rate of reality.
Part between the described solid-liquid separator at different levels constitutes the settling region, is the one-level settling region between one-level solid-liquid separator and the secondary solid-liquid separator, is the two-stage precipitation district between secondary solid-liquid separator and the three grades of solid-liquid separators, by that analogy.The surface load of one-level settling region is 1～1.5m
3/ m
2H, the surface load of back one-level settling region is than the high 0.2m of surface load of previous stage settling region
3/ m
2H.
Dwell time of sewage in the described one-level settling region is 0.2～0.25h, and the dwell time of sewage of back one-level settling region is than the low 0.05h of previous stage.
The cone central angle of described one-level solid-liquid separator is 90～100 degree, and the cone central angle of described secondary solid-liquid separator is 80～85 degree, and the cone central angle of back one-level solid-liquid separator is than low 10～15 degree of previous stage.
Angle between described cylindrical shell and the baffle plate is controlled between 125～130 degree.
The cone maximum diameter of described solid-liquid separator is 1: 1.2～1.5 with the ratio of baffle plate minimum diameter.The external diameter that prolongs the limit of described one-level solid-liquid separator is 1: 1.6～2 with the ratio of the minimum diameter of one-level baffle plate.
It between described solid-liquid separator and the cylindrical shell water-in.Be provided with rising pipe between several cylindrical shells; Stretch out outside the outermost cylindrical shell outer end of described rising pipe; The inner of said rising pipe extends inner most cylindrical shell medium position and stretches into below the liquid level downwards; Prevent to swim on the water surface, and then flow out, help improving effluent quality with water because of the dead mud that occurs behind the aeration.Flow velocity in the described rising pipe is 0.06～0.1m/s.
As a kind of preferred, described separator is provided with two, i.e. primary separator and second-stage separator, and described primary separator is placed in outside the second-stage separator.
Described one-level water inlet flow rate of water flow be 0.00056～0.00064m/s, the flow velocity of back one-level water inlet is than the big 0.000056m/s of previous stage.
The aerobic activated sludge device for separating mud and water of forming with two separators is an example, and apparatus of the present invention workflow is following: treatment sewage flows in the one-level cylindrical shell through the one-level water-in, and (mud is during through solid-liquid separator for the settlement action through solid-liquid separator; Collision solid-liquid separator wall; And then the change flow direction, the mass force sedimentation), oarse-grained solid matter is retained down;, get in the pond to dirty along the one-level solid-liquid separator.If this device places the aeration tank, then gas is discharged through gas tube along the solid-liquid separator inwall; Sewage continues to rise to the secondary solid-liquid separator; At this moment; Particulate matter is further removed; Water after the purification flows in the secondary cylindrical shell from the secondary water-in, and the gas of trace then obtains discharging through gas tube along secondary solid-liquid separator inner-wall surface, and the clear water that process obtains after purifying is then through outside the rising pipe outflow reactor.
Apparatus of the present invention have successfully been improved the unconspicuous shortcoming of one-level sedimentation effect; On the sedimentary basis of one-level; Set up the two-stage precipitation device, its anti-water flow disturbance ability is strong, and alternative second pond is as the device for separating mud and water of active sludge in the aerobic aeration pond; Realize the aeration tank integrated design, do not need behind the aeration tank, to set up the second pond pond.And, do not need the mud return-flow system, reduced energy consumption, can excess sludge directly be discharged in the aeration tank.Apparatus of the present invention are of very high actual application value.
Description of drawings
Fig. 1 is the cross-sectional view of apparatus of the present invention.
Fig. 2 is the perspective view of apparatus of the present invention.
Description of reference numerals:
1-primary separator 2-second-stage separator 3-secondary cylindrical shell 4-secondary solid-liquid separator
The 5-secondary gas tube 6-one-level first gas tube 7-one-level second gas tube 8-one-level cylindrical shell
9-one-level solid-liquid separator 10-rising pipe 11-one-level baffle plate 12-secondary baffle plate 13-is heavy
The district 14-one-level of forming sediment water-in
Embodiment
As shown in Figure 1, a kind of aerobic activated sludge device for separating mud and water comprises primary separator and second-stage separator, and second-stage separator 2 is fixed on primary separator 1 inside through a plurality of nuts.Primary separator 1 comprises one-level solid-liquid separator 9 and one-level cylindrical shell 8, and one-level solid-liquid separator 9 is provided with two gas tubes: one-level first gas tube 6, one-level second gas tube 7, the one-level baffle plate 11 of 8 times termination one truncated cone-shaped of one-level cylindrical shell.Second-stage separator 2 comprises secondary solid-liquid separator 4 and secondary cylindrical shell 3, and secondary solid-liquid separator 4 is provided with a secondary gas tube 5, the secondary baffle plate 12 of following termination one truncated cone-shaped of secondary cylindrical shell 3.
Angle between one-level cylindrical shell and the one-level baffle plate, between secondary cylindrical shell and the secondary baffle plate is 125 degree.The central angle of secondary solid-liquid separator 4 is 80 degree, and the central angle of one-level solid-liquid separator 9 is 95 degree.
Dwell time of sewage in the secondary cylindrical shell 3 is 0.25h, and the height of cylindrical shell is 0.27m; Dwell time of sewage in the settling region 13 of one-level cylindrical shell 8 bottoms is 0.2h, and the height of settling region is 0.14m.
The flow velocity of secondary water inlet is 2.2m/h, and the flow velocity at one-level water-in 14 places is 2m/h.
Flow velocity in the rising pipe 10 is 216～360m/h, and its feed-water end extends the medium position of cylindrical shell 3.
The diameter of separator 4 is 1: 1.5 with the ratio of the minimum diameter of truncated cone-shaped baffle plate 12; Separator 9 is connected to and prolongs the limit, and its diameter that prolongs the limit is 1: 2 with the ratio of truncated cone-shaped baffle plate 11 minimum diameters.
The diameter of gas tube is 0.012 meter, and it extends the position, middle and lower part of cylindrical shell highly respectively.
Treatment sewage flows in the one-level cylindrical shell 8 through one-level water-in 14, and through the interception function of solid-liquid separator, oarse-grained solid matter is retained down.If this device places the aeration tank, then gas is discharged through gas tube 6 and 7; Sewage continues to rise to secondary solid-liquid separator 4; At this moment, particulate matter is further removed, and the water after the purification flows in the secondary cylindrical shell 3 from the secondary water-in; The gas of trace then obtains discharging through gas tube 5, then passes through outside rising pipe 10 outflow reactors through the clear water that obtains after purifying.
Claims (9)
1. aerobic activated sludge device for separating mud and water; Comprise the separator of several suits, it is characterized in that: described separator comprises solid-liquid separator and cylindrical shell, and described solid-liquid separator is provided with gas tube; Described cylindrical shell lower end is provided with baffle plate; Described solid-liquid separator is hollow cone, is provided with water-in between described solid-liquid separator and the cylindrical shell, is connected with rising pipe between several cylindrical shells.
2. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: described baffle plate is a truncated cone-shaped.
3. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: the cone central angle of described one-level solid-liquid separator is 90～100 degree, and the cone central angle of back one-level solid-liquid separator is than low 10～15 degree of previous stage.
4. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: the lower end of described one-level solid-liquid separator is connected to prolongs the limit, the described diameter that prolongs the diameter on limit greater than cylindrical shell.
5. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: the angle between described cylindrical shell and the baffle plate is 125～130 degree.
6. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: the flow velocity in the described rising pipe is 0.06～0.1m/s.
7. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: the flow rate of water flow of described one-level water inlet is 0.00056～0.00064m/s, and the flow velocity of back one-level water inlet is than the big 0.000056m/s of previous stage.
8. require described aerobic activated sludge device for separating mud and water like right 1, it is characterized in that: constitute the settling region between described each solid-liquid separator, the surface load of one-level settling region is 1～1.5m3/m
2H, the surface load of back one-level settling region is than the high 0.2m3/m of surface load of previous stage settling region
2H.
9. require described aerobic activated sludge device for separating mud and water like right 8, it is characterized in that: the dwell time of sewage in the described one-level settling region is 0.2～0.25h, and the dwell time of sewage of back one-level settling region is than the low 0.05h of previous stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120250513XU CN202226714U (en) | 2011-07-14 | 2011-07-14 | Muddy water separation device for aerobic activated sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120250513XU CN202226714U (en) | 2011-07-14 | 2011-07-14 | Muddy water separation device for aerobic activated sludge |
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| Publication Number | Publication Date |
|---|---|
| CN202226714U true CN202226714U (en) | 2012-05-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120250513XU Expired - Fee Related CN202226714U (en) | 2011-07-14 | 2011-07-14 | Muddy water separation device for aerobic activated sludge |
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|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277296A (en) * | 2016-10-20 | 2017-01-04 | 安庆市长虹化工有限公司 | Equipment for aerobic biochemical treatment of sewage water and processing method |
-
2011
- 2011-07-14 CN CN201120250513XU patent/CN202226714U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106277296A (en) * | 2016-10-20 | 2017-01-04 | 安庆市长虹化工有限公司 | Equipment for aerobic biochemical treatment of sewage water and processing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20130714 |