CN2192617Y - Combined-build type two-spiral blast aeration tank - Google Patents
Combined-build type two-spiral blast aeration tank Download PDFInfo
- Publication number
- CN2192617Y CN2192617Y CN93217981U CN93217981U CN2192617Y CN 2192617 Y CN2192617 Y CN 2192617Y CN 93217981 U CN93217981 U CN 93217981U CN 93217981 U CN93217981 U CN 93217981U CN 2192617 Y CN2192617 Y CN 2192617Y
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- CN
- China
- Prior art keywords
- aeration tank
- aeration
- combined
- water
- tank
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
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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 relates to a combined-build type two-spiral blast aeration tank. The tank is reformed on the basis of the original aeration tank, and the bottom of the aeration tank is provided with a two-spiral blast aeration tank. The top of a clarifying area is provided with a combined filling. The aeration tank has the advantages of large sewage treating capacity, strong impact resistant ability, convenient operation and maintenance and stable running.
Description
The utility model relates to a kind of treatment unit of petrochemical wastewater, relates in particular to a kind of Round Sump duplex blast aeration pond.
The China's oil chemical industry generally adopts round Round Sump biochemical aeration tank at present, aerator mostly is prototype impeller surface mechanical aeration machine, though it is little that this aeration tank has floor space, advantages of simple structure and simple, but exposed a lot of problems in long-time running, low as sewage load, specification is generally 16～17 meters of φ, dark 4～5 meters aeration tank designing treatment amount is 120t/h, and the actual treatment ability only has about 80t/h, and skewer ring load-carrying capacity is poor, because the seam that refluxes often stops up, stream oxygen ability is low, the processing cost height, sludge concentration is low, shock-resistant ability, mechanical equipment fault is many, and pollutants removal rate is low.
Raising day by day along with the oil refining working depth, the kind of petrochemicals is increasing, make sewage quality increasingly sophisticated, the water yield increases, this kind aeration tank and aeration mode can not meet the needs of production, and many old factories are owing to be subjected to the restriction in place, and it is impossible adopting the mode of enlarging aeration tank to increase treatment capacity, and the unique method of solution portion topic is transformed existing combined building aeration pond exactly.
Fig. 1 is the structure diagram in original round combined building aeration pond.As shown in Figure 1, original round Round Sump exposure pond is surperficial mechanical aeration, the mechanical aerator in surface (1) is the prototype impeller, and flow-shape is spiral upper upstream attitude (4), a part of dead band (2) occurred, make the interior some areas oxygenation in aeration zone (3) deficiency, easy deposition at the bottom of the pond, mud refluxes bad, thereby has reduced sewage load, pollutants removal rate is low, shock-resistant ability.
The objective of the invention is transforming with the aeration tank that has, a kind of Round Sump duplex blast aeration pond of transformation is provided, this pond has very high processing power and purification efficiency.
Fig. 2 is the structure diagram of the improved aeration tank of the present invention.
In original round aeration tank, cancelled the original mechanical aerator in prototype surface, in the bottom, aeration tank duplex blast aeration device has been installed, and combined stuffing has been installed in the settling region of former aeration tank, utilize the lifting of duplex blast aeration device, mix and oxygenation, guaranteed the normal operation of aeration tank, structure according to the aeration tank, volume, surface-area, factor such as sewage load and aeration area, determine the quantity of duplex blast aeration device, to establish 1～2 aerator according to the area and the aeration area in pond simultaneously more, the content of the dissolved oxygen in the water will be higher than what require like this, in the clear water ascent stage of aeration tank settling section combined stuffing is installed and is utilized this part dissolved oxygen fully, activated sludge process and biomembrance process are combined, make sewage after Wastewater Treated by Activated Sludge Process, carry out a biomembrance process again and handle, thereby improved purification efficiency.
Referring to Fig. 2, aeration tank (24) is made up of aeration zone (15), water conservancy diversion district (13), aerator (14), settling section (20), filler (17), the seam (13) that refluxes etc., must select for use and possess lifting simultaneously, the aerator of oxygenation and mixing effect, and lifting and oxidation effect also are better than original surperficial mechanical aerator, and the utility model is selected duplex blast aeration device for use.At the bottom of the pond according to the structure of aeration tank, volume, surface-area, sewage load, factors such as the area of aeration zone, a plurality of duplex blast aeration devices are set, as 16 duplex blast aeration devices are installed in the round aeration tank of 16.4 * 4.5 meters of φ, combined stuffing (17) is installed on top in the settling region of original aeration tank, the bottom of filler (17) is a settling section, the water-in (16) of waste water (24) bottom centre from the aeration tank enters aeration tank (24), after the lifting and oxygenation of duplex blast aeration device (14), after the sewage of pump around circuit and mud mix mutually, active sludge in the water is degraded to the organic matter in the water, sewage is by diversion window (11), water conservancy diversion district (12) enters the bottom of settling section (10), under the settling section sludge settling, get back to aeration zone (15) through the seam (13) that refluxes, constitute the circulation of mud; Water after the processing upwards contacts with filler (17), and the microorganism on the filler (17) is further degraded to organism remaining in the water, and the overflow that makes progress of the clear water after the processing enters effluent trough (18), drains through water outlet (19) again.
Embodiment 1
In the round aeration tank of 16.4 * 4.5 meters of φ, 16 duplex blast aeration devices have been installed altogether, filler is selected combined stuffing for use,
The length of filler is 1.2 meters, and the dress amount of filler is 140 meters
3The water that 80t/h can only be handled in the every pond of the water yield is handled in original aeration tank, improved aeration tank is handled the water yield and is increased to 110～120t/h, when concentration of narmful substance in the water inlet is low, handles the water yield and can bring up to 150～180t/h, volumetric loading doubles, dissolved oxygen in the water outlet is brought up to 1.5～3mg/l by 0.5 original～1mg/l, and sludge concentration is by original 2g/l, bring up to 3～6g/l, thereby shock-resistant ability strengthens.
Improved aeration tank has solved the problem that original aeration tank exists, sewage load can improve 25%, dissolved oxygen and sludge concentration have improved twice respectively in the water outlet, volumetric loading is doubled, and biochemical function is strengthened, and has improved the shock-resistant ability of aeration tank operational conditions and has strengthened, the utility model aeration tank convenient operating maintenance, operate steadily, wastewater treatment efficiency significantly improves, referring to table 1.In addition from considering that economically duplex blast aeration device is installed can cut down the consumption of energy, thereby has saved working cost.
Table 1 wastewater treatment efficiency contrast table
Claims (1)
1, a kind of duplex blast aeration pond, form by aeration zone, water conservancy diversion district, aerator, settling section etc., it is characterized in that top installation filler (17) in the settling region of aeration tank, the bottom of filler (17) is a settling section, the water-in (16) of waste water (24) bottom centre from the aeration tank enters aeration tank (24), and the bottom of (24) is equipped with duplex blast aeration device in the aeration tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93217981U CN2192617Y (en) | 1993-07-13 | 1993-07-13 | Combined-build type two-spiral blast aeration tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93217981U CN2192617Y (en) | 1993-07-13 | 1993-07-13 | Combined-build type two-spiral blast aeration tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2192617Y true CN2192617Y (en) | 1995-03-22 |
Family
ID=33797764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93217981U Expired - Fee Related CN2192617Y (en) | 1993-07-13 | 1993-07-13 | Combined-build type two-spiral blast aeration tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2192617Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487894A (en) * | 2017-09-08 | 2017-12-19 | 常州市鼎升环保科技有限公司 | A kind of sewage-treatment plant |
-
1993
- 1993-07-13 CN CN93217981U patent/CN2192617Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107487894A (en) * | 2017-09-08 | 2017-12-19 | 常州市鼎升环保科技有限公司 | A kind of sewage-treatment plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |