CN201848130U - Activated sludge settling tank - Google Patents
Activated sludge settling tank Download PDFInfo
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- CN201848130U CN201848130U CN2010206125633U CN201020612563U CN201848130U CN 201848130 U CN201848130 U CN 201848130U CN 2010206125633 U CN2010206125633 U CN 2010206125633U CN 201020612563 U CN201020612563 U CN 201020612563U CN 201848130 U CN201848130 U CN 201848130U
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- activated sludge
- settling
- settling tank
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Abstract
The utility model discloses an activated sludge settling tank which comprises a settling tank body, a water inlet area, a water outlet area, a sludge discharge hole, a settling area and a sludge deposition area, and is characterized in that the settling area and the water outlet area are divided into two ends and arranged in an 'L' shape; the settling area is provided with an inclined plate forming an angle of 60-70 degrees with the horizontal direction; the settling area forms an angle of 60-75 degrees with the horizontal direction; the settling area is connected with a sludge bucket of the sludge deposition area; the water inlet area and the sludge bucket are arranged in an eccentric way; the water inlet area is provided with a horn mouth; and the water outlet area is provided with an effluent weir and a water outlet pipeline. By combining the advantages of a vertical sedimentation tank and a horizontal sedimentation tank, the activated sludge settling tank has the advantages of being simple in structure, high in removal rate of suspended matters, free from mechanical equipment and convenient in operation and management.
Description
Technical field
The utility model relates to a kind of sedimentation basin, especially relates to the sedimentation basin of activated sludge in the sewage disposal process, belongs to the water supply and sewage work technical field.
Background technology
In sewage disposal process, activated sludge process has obtained utilization widely because processing cost is low in sewage treatment industry.The precipitation of activated sludge, concentrate and backflow can come-up after being disturbed, influenced the water outlet of sedimentation basin.Therefore, the precipitation of sedimentation basin and concentrate, the backflow effect is in the developing important topic of sewage treatment industry.
Sedimentation basin is one of crucial structures in the activated sludge process.Behind the pollutant in the microorganism treating sewage in the activated sludge and sewage together enter sedimentation basin, by the precipitation of sedimentation basin, concentrate rear section mud and reflux excess sludge discharge.The mode of returned sludge mainly relies on water pump to promote backflow.The operation that precipitate, concentrate, the returned sludge effect has directly influenced the activated sludge process processing.
Existing sedimentation basin commonly used mainly contains three kinds, and a kind of is vertical sedimentation basin, and the sedimentation basin of this type is mainly used in middle or small sewage treatment, have depth of water height, capacity is less, and is poor for impact load and variation of temperature adaptive capacity, difficulty of construction is big, shortcomings such as cost height.Shortcomings such as a kind of is rectangular sedimentation tank, and the sedimentation basin of this type exists this water distribution inhomogeneous, and the spoil disposal operational ton is big, and floor space is big.Another kind is a radical sedimentation basin, the sedimentation basin of this type exists plant equipment under water, and is perishable, and the size of the spacing at the bottom of equipment scraper plate and the pond determined the effect that mud concentrates and scrapes mud, and is very high for the quality requirement of construction.The actual motion data shows that three kinds of sedimentation basins all exist the clearance of suspension not high, and clearance generally has only 50%～60%.Therefore, the advantage in conjunction with three kinds of sedimentation basins is necessary to the improvement that has sedimentation basin now.
Summary of the invention
The purpose of this utility model provides a kind of plant equipment, concentrated and a kind of activated sludge settling tank effective, that suspended substance removal efficient is high that refluxes of not needing.
In order to realize above purpose, the technical solution adopted in the utility model is: a kind of activated sludge settling tank, comprise sedimentation basin pond body, inhalant region, exhalant region, mud discharging mouth, settling zone, mud accumulation area, described settling zone and exhalant region are divided into two ends, being " L " type arranges, the settling zone be provided with one with horizontal direction be 60～70 the degree swash plates, settling zone and level are 60～75 degree and are provided with, the settling zone links to each other with the bucket of mud accumulation area, inhalant region and bucket are arranged off-centre, inhalant region is provided with horn mouth, and exhalant region has effluent weir and outlet conduit.
Described effluent weir is the profile of tooth effluent weir, and baffle plate is set on the effluent weir.
The bucket of described mud accumulation area is the taper bucket, and bucket and level are 75～89 degree and are provided with, and are furnished with the spoil disposal pipeline all around in the bucket, and the spoil disposal position is on bucket top.
Described mud accumulation area bucket center is provided with reflux line, reflux line apart from the pond at the bottom of the distance between 200mm～1000mm.
The utility model combines the advantage of vertical sedimentation basin and rectangular sedimentation tank, and the area of settling zone has substantially exceeded the area of inhalant region, and the precipitation flow velocity slows down greatly, and the sedimentation time is longer, helps the precipitation of suspension.Have the settling zone at certain inclination angle and the swash plate of setting, mud concentrated play a part bigger, carried at gas under the effect of power and refluxing, guaranteed the continuity that concentrates and reflux, do not need plant equipment to scrape mud and concentrate, do not need equipment such as water pump to promote backflow yet.The spoil disposal pipeline of Bu Zhiing is carried at gas under the effect of power all around, and normally spoil disposal does not stay the dead angle, has avoided the anaerobic sludge digestion come-up at dead angle.
In sum, the utlity model has simple in structure, suspended substance removal efficient height, do not need plant equipment, operational management is advantage easily.
Description of drawings
Fig. 1 is a structural plan of the present utility model schematic diagram;
Fig. 2 is a structure elevational schematic view of the present utility model;
Figure is, the 1st, and inlet channel, the 2nd, spoil disposal pipeline, the 3rd, settling zone, the 4th, mud accumulation area, the 5th, effluent weir, the 6th, reflux line, the 7th, inhalant region, the 8th, outlet conduit.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
From Fig. 1, Fig. 2 as can be known, the utility model comprises sedimentation basin pond body, inhalant region 7, exhalant region, spoil disposal pipeline 2, reflux line 6, settling zone and exhalant region are divided into two ends, being " L " type arranges, settling zone setting and horizontal direction are the swash plate of 60～70 degree, in order to increase desilting area, settling zone and level are 60～75 degree and are provided with, and the settling zone links to each other with the mud accumulation area bucket.Exhalant region has two, is arranged in the two ends of " L " type, and each exhalant region comprises outlet conduit 8 and effluent weir 5, and effluent weir adopts the profile of tooth effluent weir, and mud and scum board are set on the effluent weir.The mud scum silica frost is got rid of by the scum silica frost mouth of exhalant region.Inhalant region 7 is arranged off-centre with bucket, and a water inlet horn mouth is set, and sewage enters the settling zone radially.Mud accumulation area is the taper bucket, and bucket and level are 75～89 degree and are provided with, and spoil disposal pipeline 2 is set in the bucket, arranges around the spoil disposal pipeline is, and the spoil disposal position adopts gas to put forward the mode of spoil disposal on bucket top.In the bucket center reflux line 6 is set, sludge pipe apart from the pond at the bottom of apart between 200mm～1000mm.
The course of work: activated sludge and sewage enter sedimentation basin pond body from inlet channel 1, the horn mouth of the inhalant region 7 from Fig. 2 enters settling zone 3 radially, under the swash plate effect of activated sludge in settling zone 3, activated sludge sinks under the situation that flow velocity slows down, because the bottom, settling zone is 60～75 degree angles with level, slide to mud accumulation area 4 under the mud, stringing around mud accumulation area passes through utilizes spoil disposal pipeline 2 to get rid of under the power that gas is carried.Mud refluxes and carries by gas, utilizes reflux line 6 to be back to the activated sludge process unit.Sewage after the process mud-water separation is through effluent weir 5 and enter next handling process unit.
Gas of the present utility model is carried airduct or the air compressor machine that power can come from blast aeration.The sewage quantity that the tolerance that needs is handled as required decides, and needing gas to put forward the degree of depth can regulate according to the operation needs.
Claims (4)
1. activated sludge settling tank, comprise sedimentation basin pond body, inhalant region, exhalant region, mud discharging mouth, settling zone, mud accumulation area, it is characterized in that: described settling zone and exhalant region are divided into two ends, be " L " type and arrange, the settling zone is provided with one and is the swash plates of 60～70 degree with horizontal direction, and settling zone and level are 60～75 degree settings, the settling zone links to each other with the bucket of mud accumulation area, inhalant region and bucket are arranged off-centre, and inhalant region is provided with horn mouth, and exhalant region has effluent weir and outlet conduit.
2. activated sludge settling tank according to claim 1 is characterized in that: described effluent weir is the profile of tooth effluent weir, and baffle plate is set on the effluent weir.
3. activated sludge settling tank according to claim 1 is characterized in that: the bucket of described mud accumulation area is the taper bucket, and bucket and level are 75～89 degree and are provided with, and are furnished with the spoil disposal pipeline all around in the bucket, and the spoil disposal position is on bucket top.
4. activated sludge settling tank according to claim 1 is characterized in that: described mud accumulation area bucket center is provided with reflux line, reflux line apart from the pond at the bottom of the distance between 200mm～1000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206125633U CN201848130U (en) | 2010-11-18 | 2010-11-18 | Activated sludge settling tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206125633U CN201848130U (en) | 2010-11-18 | 2010-11-18 | Activated sludge settling tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848130U true CN201848130U (en) | 2011-06-01 |
Family
ID=44090545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206125633U Expired - Lifetime CN201848130U (en) | 2010-11-18 | 2010-11-18 | Activated sludge settling tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482744A (en) * | 2013-09-27 | 2014-01-01 | 乾通环境科技(苏州)有限公司 | Horizontal flow sedimentation tank with sludge modification return system, and return method thereof |
| CN104264778A (en) * | 2014-09-25 | 2015-01-07 | 旭泰（太仓）精细化工有限公司 | Sewage discharging cofferdam |
| CN105854361A (en) * | 2016-05-14 | 2016-08-17 | 芜湖卓越空调零部件有限公司 | Sewerage |
-
2010
- 2010-11-18 CN CN2010206125633U patent/CN201848130U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103482744A (en) * | 2013-09-27 | 2014-01-01 | 乾通环境科技(苏州)有限公司 | Horizontal flow sedimentation tank with sludge modification return system, and return method thereof |
| CN103482744B (en) * | 2013-09-27 | 2016-01-20 | 乾通环境科技(苏州)有限公司 | A kind of horizontal sedimentation tank with sludge modification return-flow system and reflow method thereof |
| CN104264778A (en) * | 2014-09-25 | 2015-01-07 | 旭泰（太仓）精细化工有限公司 | Sewage discharging cofferdam |
| CN105854361A (en) * | 2016-05-14 | 2016-08-17 | 芜湖卓越空调零部件有限公司 | Sewerage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |