CN102276077B - Aerobic activated sludge mud-water separation device - Google Patents
Aerobic activated sludge mud-water separation device Download PDFInfo
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- CN102276077B CN102276077B CN 201110197876 CN201110197876A CN102276077B CN 102276077 B CN102276077 B CN 102276077B CN 201110197876 CN201110197876 CN 201110197876 CN 201110197876 A CN201110197876 A CN 201110197876A CN 102276077 B CN102276077 B CN 102276077B
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Abstract
The invention discloses an aerobic activated sludge mud-water separation device. The device comprises a plurality of sleeved separators, wherein each separator comprises a solid-liquid separator and a plurality of barrels; each solid-liquid separator is provided with an air duct; the lower end of each barrel is provided with a baffle; each solid-liquid separator is a hollow cone; the lower end ofeach solid-liquid separator is connected with an edge; a water inlet is arranged between each solid-liquid separator and each barrel; and the barrels are connected through water outlet pipes. The device has compact structure and small floor space; a sludge reflux system is not required, the energy consumption is reduced, the excess sludge can be directly discharged from the aeration tank; and thedevice has high practical application value.
Description
Technical field
The present invention relates to a kind of aerobic activated sludge mud-water separation device, 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 needs the sludge reflux system is set, and 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 consist of like this: the bottom of settling vessel be flat, some dividing plates be installed form the spoil disposals 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 some mud valves; The top of settling vessel tank body is provided with water inlet pipe and rising pipe.The principle that this technical scheme utilization is filtered reaches 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 mud-water separation device that can apply in a flexible way according to Practical Project.
A kind of aerobic activated sludge mud-water separation device, comprise primary separator and second-stage separator, described primary separator is placed in outside the second-stage separator, described primary separator comprises one-level solid-liquid separator and one-level cylindrical shell, described one-level cylindrical shell is positioned at the top of one-level solid-liquid separator, is provided with the one-level water-in between described one-level solid-liquid separator and the one-level cylindrical shell; Described second-stage separator comprises secondary solid-liquid separator and secondary cylindrical shell, and described secondary cylindrical shell is positioned at the top of secondary solid-liquid separator, is provided with the secondary water-in between described secondary solid-liquid separator and the secondary cylindrical shell; Be equipped with airway on described one-level solid-liquid separator and the secondary solid-liquid separator, described one-level cylindrical shell and secondary cylindrical shell lower end are equipped with baffle plate, described one-level solid-liquid separator and secondary solid-liquid separator are hollow cone, be connected with rising pipe between one-level cylindrical shell and the secondary cylindrical shell, the inner of described rising pipe is positioned at secondary cylindrical shell medium position and bending is downwards extended, and stretch out outside the one-level cylindrical shell outer end of described rising pipe.
Described baffle plate is preferably truncated cone-shaped.
Take the separator of being located at outermost as primary separator, 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 with between the separators at different levels, or hangs binding by through metal.
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 on limit that prolongs is greater than the diameter of cylindrical shell, and remaining solid-liquid separator does not need to connect and prolongs the limit.The effect of prolonging the limit be when mud when the primary separator, can hold back lower most mud, reduce the segregational load of later separation device.
Preferred only need of described airway arrange at the firsts and seconds separator, because after the two-stage separator, bubble is isolated substantially, can no longer establish airway on three grades and three grades of later separators.The interior diameter of described airway 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 consists of 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 rear 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 residence time of rear 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 rear 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.
Described baffle plate minimum diameter is 1:1.2～1.5 with the ratio of the cone maximum diameter of solid-liquid separator.The minimum diameter of described one-level baffle plate is 1:1.6～2 with the ratio of the external diameter that prolongs the limit of one-level solid-liquid separator.
It is water-in between described solid-liquid separator and the cylindrical shell.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 described rising pipe extends inner most cylindrical shell medium position and stretches into below the liquid level downwards, prevent from swimming on the water surface because of the dead mud that occurs behind the aeration, and then with the water outflow, be conducive to improve effluent quality.Flow velocity in the described rising pipe is 0.06～0.1m/s.
As a kind of preferred, described separator arranges two, i.e. primary separator and second-stage separator, and described primary separator is placed in outside the second-stage separator.
The flow rate of water flow of described secondary water inlet is 0.00061～0.0007m/s, and the flow rate of water flow of described one-level water inlet is 0.00056～0.00064m/s.
The aerobic activated sludge mud-water separation device that forms take two separators is as example, apparatus of the present invention workflow is as follows: treatment sewage flows in the one-level cylindrical shell through the one-level water-in, (mud is during through solid-liquid separator for settlement action by 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, along the one-level solid-liquid separator to dirty, enter in the pond.If this device places the aeration tank, then gas is discharged by airway 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, the gas of trace then obtains discharging by airway along secondary solid-liquid separator inner-wall surface, then passes through outside the rising pipe outflow reactor through the clear water that obtains after purifying.
Apparatus of the present invention have successfully been improved the unconspicuous shortcoming of one-level sedimentation effect, on the basis of one-level precipitation, set up the two-stage precipitation device, its anti-current disturbance ability is strong, 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 sludge reflux system, reduced energy consumption, excess sludge directly can 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
5-secondary airway 6-one-level the first airway 7-one-level the second airway 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 15-secondary water-in 16-prolongs the limit
Embodiment
As shown in Figure 1, a kind of aerobic activated sludge mud-water separation device comprises primary separator and second-stage separator, and second-stage separator 2 is fixed on primary separator 1 inside by 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 airways: one-level the first airway 6, one-level the second airway 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 airway 5, the secondary baffle plate 12 of lower 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 at secondary water-in 15 places is 0.00061m/s, and the flow velocity at one-level water-in 14 places is 0.00056m/s.
Flow velocity in the rising pipe 10 is 0.06～0.1m/s, and its feed-water end extends the medium position of cylindrical shell 3.
The diameter of separator 4 is 1.5:1 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 2:1 with the ratio of truncated cone-shaped baffle plate 11 minimum diameters.
The diameter of airway is 0.012 meter, and it extends highly respectively the position, middle and lower part of cylindrical shell.
Treatment sewage flows in the one-level cylindrical shell 8 through one-level water-in 14, and by 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 by airway 6 and 7; Sewage continues to rise to secondary solid-liquid separator 4, at this moment, particulate matter is further removed, water after the purification flows in the secondary cylindrical shell 3 from secondary water-in 15, the gas of trace then obtains discharging by airway 5, then passes through outside rising pipe 10 outflow reactors through the clear water that obtains after purifying.
Claims (9)
1. aerobic activated sludge mud-water separation device, comprise primary separator and second-stage separator, described primary separator is placed in outside the second-stage separator, it is characterized in that: described primary separator comprises one-level solid-liquid separator and one-level cylindrical shell, described one-level cylindrical shell is positioned at the top of one-level solid-liquid separator, is provided with the one-level water-in between described one-level solid-liquid separator and the one-level cylindrical shell; Described second-stage separator comprises secondary solid-liquid separator and secondary cylindrical shell, and described secondary cylindrical shell is positioned at the top of secondary solid-liquid separator, is provided with the secondary water-in between described secondary solid-liquid separator and the secondary cylindrical shell; Be equipped with airway on described one-level solid-liquid separator and the secondary solid-liquid separator, described one-level cylindrical shell and secondary cylindrical shell lower end are equipped with baffle plate, described one-level solid-liquid separator and secondary solid-liquid separator are hollow cone, be connected with rising pipe between one-level cylindrical shell and the secondary cylindrical shell, the inner of described rising pipe is positioned at secondary cylindrical shell medium position and bending is downwards extended, and stretch out outside the one-level cylindrical shell outer end of described rising pipe.
2. aerobic activated sludge mud-water separation device as claimed in claim 1, it is characterized in that: described baffle plate is truncated cone-shaped.
3. aerobic activated sludge mud-water separation device as claimed in claim 1 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 described secondary solid-liquid separator is 80～85 degree.
4. aerobic activated sludge mud-water separation device as claimed in claim 1, it is characterized in that: the lower end of described one-level solid-liquid separator is connected to prolongs the limit, and the described diameter on limit that prolongs is greater than the diameter of one-level cylindrical shell.
5. aerobic activated sludge mud-water separation device as claimed in claim 1 is characterized in that: described one-level cylindrical shell and the angle between the baffle plate of one-level cylindrical shell lower end are 125～130 degree; Described secondary cylindrical shell and the angle between the baffle plate of secondary cylindrical shell lower end are 125～130 degree.
6. aerobic activated sludge mud-water separation device as claimed in claim 1 is characterized in that: the flow velocity in the described rising pipe is 0.06～0.1m/s.
7. aerobic activated sludge mud-water separation device as claimed in claim 1, it is characterized in that: the flow rate of water flow of described one-level water inlet is 0.00056～0.00064m/s, the flow rate of water flow of described secondary water inlet is 0.00061～0.0007m/s.
8. aerobic activated sludge mud-water separation device as claimed in claim 1, it is characterized in that: consist of the settling region between described one-level solid-liquid separator and the secondary solid-liquid separator, the surface load of settling region is 1～1.5m
3/ m
2H.
9. aerobic activated sludge mud-water separation device as claimed in claim 8, it is characterized in that: the dwell time of sewage in the described settling region is 0.2～0.25h.
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| CN 201110197876 CN102276077B (en) | 2011-07-14 | 2011-07-14 | Aerobic activated sludge mud-water separation device |
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|---|---|---|---|
| CN 201110197876 CN102276077B (en) | 2011-07-14 | 2011-07-14 | Aerobic activated sludge mud-water separation device |
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| CN102276077B true CN102276077B (en) | 2013-04-24 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795744A (en) * | 2012-08-10 | 2012-11-28 | 杭州净洋环保科技有限公司 | Integrated life sewage nitrogen and phosphorus removal apparatus |
| CN102815784B (en) * | 2012-08-29 | 2014-06-25 | 深圳清华大学研究院 | Aerobic three-phase separator and application method thereof in sewage treatment |
| CN105800751B (en) * | 2014-12-31 | 2019-02-12 | 李进民 | Gravity settling device for separation of solid and liquid |
| CN107055767B (en) * | 2017-06-19 | 2020-12-04 | 湖北鸿鑫化工有限公司 | Sludge layering device and sewage treatment process thereof |
| CN107930571B (en) * | 2017-12-29 | 2024-04-05 | 南京新奥环保技术有限公司 | Supercritical oxidation reactor |
| CN113603216A (en) * | 2021-08-24 | 2021-11-05 | 彭吉成 | Efficient contact type anaerobic reactor and method for treating wastewater |
Citations (4)
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|---|---|---|---|---|
| WO2001023062A1 (en) * | 1999-09-28 | 2001-04-05 | Biothane Corporation | Phase separator having multiple separation units, upflow reactor apparatus, and methods for phase separation |
| CN2598997Y (en) * | 2003-01-24 | 2004-01-14 | 天津清华德人环境工程有限公司 | Expansion particle sludge bed organic waste water anaerobic reactor |
| JP4223796B2 (en) * | 2002-12-17 | 2009-02-12 | 株式会社荏原製作所 | Anaerobic treatment apparatus and treatment method |
| CN101391836A (en) * | 2007-09-17 | 2009-03-25 | 上海达源环境科技工程有限公司 | Anaerobic biological treatment apparatus |
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2011
- 2011-07-14 CN CN 201110197876 patent/CN102276077B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001023062A1 (en) * | 1999-09-28 | 2001-04-05 | Biothane Corporation | Phase separator having multiple separation units, upflow reactor apparatus, and methods for phase separation |
| JP4223796B2 (en) * | 2002-12-17 | 2009-02-12 | 株式会社荏原製作所 | Anaerobic treatment apparatus and treatment method |
| CN2598997Y (en) * | 2003-01-24 | 2004-01-14 | 天津清华德人环境工程有限公司 | Expansion particle sludge bed organic waste water anaerobic reactor |
| CN101391836A (en) * | 2007-09-17 | 2009-03-25 | 上海达源环境科技工程有限公司 | Anaerobic biological treatment apparatus |
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