CN1079946A - The treatment process of petrochemical wastewater and equipment therefor thereof - Google Patents
The treatment process of petrochemical wastewater and equipment therefor thereof Download PDFInfo
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- CN1079946A CN1079946A CN93107826A CN93107826A CN1079946A CN 1079946 A CN1079946 A CN 1079946A CN 93107826 A CN93107826 A CN 93107826A CN 93107826 A CN93107826 A CN 93107826A CN 1079946 A CN1079946 A CN 1079946A
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- aeration tank
- aeration
- filler
- petrochemical wastewater
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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
Abstract
The present invention relates to a kind of method that adopts the processing petrochemical wastewater that activated sludge process combines with biomembrance process, and the Round Sump blast aeration microbial film device of implementing this method.Method of the present invention is to make petrochemical wastewater elder generation after Wastewater Treated by Activated Sludge Process, with biomembrance process it is handled again.Device of the present invention is to transform on the basis of original aeration tank, and duplex blast aeration device has been installed in the bottom of aeration tank, on settling section top combined stuffing has been installed.Method and apparatus of the present invention has solved the problem that original aeration tank exists, and sewage load can improve 25%, and shock-resistant ability strengthens, and convenient operating maintenance operates steadily.
Description
The present invention relates to a kind of treatment process of petrochemical wastewater, and the device of implementing this method, relate in particular to a kind of method that adopts the processing petrochemical wastewater that activated sludge process combines with biomembrance process, and the Round Sump blast aeration microbial film device of implementing this method.
The method and apparatus of the petrochemical wastewater of China's processing at present still prolongs the method and apparatus with the seventies " old three covers ".As shown in Figure 1, waste water earlier in neutralization tank and pH value, enters equalizing tank then, the waste water that comes out from equalizing tank enters oil trap removal oil slick, enter flotation cell then and carry out flotation, the waste water that comes out from flotation cell enters the aeration tank and carries out biochemical treatment, after the sand filtration discharging.This treatment process and treatment facility can not satisfy demand of practical production far away, its key device is the aeration tank, original aeration tank mostly is pump type turbomachine surface aeration pond, though it is little that this aeration tank has floor space, advantages of simple structure and simple has exposed many problems in long-time running, sewage load is low, specification is generally Φ 16-17 rice, and the aeration tank designing treatment amount of dark 4-5 rice is 120t/h, and the actual treatment ability only has about 80t/h.Original aeration tank structure as shown in Figure 2, the mechanical aerator in surface is a pump type impeller, flow-shape is the spiral upper upstream attitude, a part of dead band in the aeration tank, occurred, made aeration zone internal portion area oxygenation deficiency, easy deposition at the bottom of the pond, mud refluxes bad, thereby reduced the treatment capacity of sewage, pollutants removal rate is also low, shock-resistant ability.
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 also increases, the treatment process and the equipment of this " old three covers " formula can not meet the needs of production, and many old factories are owing to be subjected to the restriction in place, it is impossible adopting enlarging or increase the mode of building the aeration tank treatment capacity that increases waste water, the unique method of dealing with problems is transformed original treatment process and treatment facility exactly, on the basis that does not increase equipment, existing processes and equipment are transformed, improve processing power and purification efficiency, to meet the needs of production.
The treatment process that the purpose of this invention is to provide a kind of improved petrochemical wastewater, this method need not to extend and increase new waste water disposal facility, just can improve sewage treatment capacity, improve purification efficiency.
Another object of the present invention provides a kind of device of implementing aforesaid method, and this device combines activated sludge process and biomembrance process, carries out these two kinds of aerobes and handle in former aeration tank, has improved the processing power and the purification efficiency of sewage.
Fig. 1 is original petrochemical wastewater treatment process schema.
Fig. 2 is original aeration tank structure diagram.
Fig. 3 is an improved petrochemical wastewater treatment process schema of the present invention.
Fig. 4 is the structure diagram of the improved aeration of the present invention-microbial film device.
Improvements of the present invention are to add upper level biomembrance process treatment step in original sewage treatment process, adopt two step aerobe factures to process petrochemical wastewater, concrete handling process is referring to Fig. 3, in the aeration tank, use earlier Wastewater Treated by Activated Sludge Process waste water, in same pond, process waste water with biomembrance process more then, waste water contacted with microbial film on being attached to filler before leaving the aeration tank, utilized the microorganism on the microbial film that the organic substance in the waste water is degraded.
The invention still further relates to a kind of device of implementing above-mentioned this method, this device is that the basis transformation in original aeration tank obtains. In original aeration tank, cancelled the original mechanical aerator in pump type surface, two-spiral blast aeration tank has been installed in bottom in the aeration tank, and in the settling zone of former aeration tank filler has been installed, utilize the lifting of two-spiral blast aeration tank, mix and oxygenation, guaranteed the normal operation of aeration tank, structure according to the aeration tank, volume, the factors such as aeration area of surface area and sewage load and aerator, many two-spiral blast aeration tanks are installed in type aeration tank, garden, to establish 1-2 platform aerator according to area and the aeration area in pond simultaneously more, the content of oxygen in water will be higher than what require like this, the clear water ascent stage at the aeration tank settling section has been installed filler, this filler can be D-2 type polyvinyl filler, Φ 25 frp honeycomb fillers, combined stuffing etc., can utilize fully this part dissolved oxygen, make work The property mud method and biomembrance process combine, sewage is processed carrying out a biomembrance process after Wastewater Treated by Activated Sludge Process again, thereby is improved purification efficiency.
Referring to Fig. 4, 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 the aerator that possesses lifting, oxygenation and mixing effect simultaneously for use, and lifting and oxidation effect also are better than original surperficial mechanical aerator, and the present invention selects 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 type aeration tank, garden 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 type aeration tank, garden of 16.4 * 4.5 meters of Φ, 16 duplex blast aeration devices have been installed altogether, filler is selected D-2 type polyvinyl filler for use, and pack length 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, handle the water yield and can bring up to 150-180t/h, volumetric loading doubles, and the dissolved oxygen in the water outlet is by original 0.5-1mg/l, bring up to 1.5-3mg/l, sludge concentration is brought up to 3-6g/l by original 2g/l, thereby shock-resistant ability strengthens.
Original aeration tank has solved the problem that original aeration tank exists after transforming by the solution of the present invention, and sewage load can improve 25%, and water outlet dissolved oxygen and sludge concentration have improved twice, and volumetric loading doubles, and biochemical function is strengthened; Shock-resistant ability strengthens, and convenient operating maintenance operates steadily, and wastewater treatment efficiency significantly improves, referring to table 1.From considering economically, reduce energy consumption after the employing blast aeration in addition, saved working cost.
Claims (6)
1, a kind of method of handling petrochemical wastewater comprises treatment steps such as neutralization, oil removal, flotation, aeration processing, sand filtration, it is characterized in that, waste water carries out the dirty method of dirt earlier in the aeration tank handles, and carries out biomembrance process again and handles.
2, a kind of aeration tank device of handling petrochemical wastewater with the described method of claim 1, by the aeration zone, compositions such as water conservancy diversion district, aerator, settling section is characterized in that in the bottom of aeration tank duplex blast aeration device being installed, and on the top of settling section filler are installed.
3, a kind of device as claimed in claim 2 is characterized in that above-mentioned filler is a D-2 type polyvinyl filler.
4, a kind of device as claimed in claim 2 is characterized in that above-mentioned filler is Φ 25 frp honeycomb fillers.
5, a kind of device as claimed in claim 2 is characterized in that above-mentioned filler is a combined stuffing.
6, a kind of device as claimed in claim 2, the quantity that it is characterized in that aerator is than the design quantity 1-2 of manying platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93107826A CN1079946A (en) | 1993-07-13 | 1993-07-13 | The treatment process of petrochemical wastewater and equipment therefor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93107826A CN1079946A (en) | 1993-07-13 | 1993-07-13 | The treatment process of petrochemical wastewater and equipment therefor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1079946A true CN1079946A (en) | 1993-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93107826A Pending CN1079946A (en) | 1993-07-13 | 1993-07-13 | The treatment process of petrochemical wastewater and equipment therefor thereof |
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| Country | Link |
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| CN (1) | CN1079946A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313390C (en) * | 2003-01-18 | 2007-05-02 | 王娅娜 | Treatment method of water recovered from oil field refilling |
| CN115140900A (en) * | 2022-07-20 | 2022-10-04 | 青岛尚禹环保设备科技有限公司 | MABR (moving anaerobic biofilm reactor) process rural sewage treatment equipment |
-
1993
- 1993-07-13 CN CN93107826A patent/CN1079946A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313390C (en) * | 2003-01-18 | 2007-05-02 | 王娅娜 | Treatment method of water recovered from oil field refilling |
| CN115140900A (en) * | 2022-07-20 | 2022-10-04 | 青岛尚禹环保设备科技有限公司 | MABR (moving anaerobic biofilm reactor) process rural sewage treatment equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |