CN109019849A - A kind of sewage treatment process - Google Patents
A kind of sewage treatment process Download PDFInfo
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- CN109019849A CN109019849A CN201811067746.9A CN201811067746A CN109019849A CN 109019849 A CN109019849 A CN 109019849A CN 201811067746 A CN201811067746 A CN 201811067746A CN 109019849 A CN109019849 A CN 109019849A
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- reaction pond
- main reaction
- pond
- sewage treatment
- water
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The present invention provides a kind of sewage treatment process, are related to the technical field of sewage treatment, and sewage treatment process includes: liquid from selection pond into the first main reaction pond, the first stage that the first main reaction pond is intake, is aerated and precipitated；Liquid enters the second main reaction pond, the first stage that the second main reaction pond is intake, is aerated and precipitated from selection pond；After the precipitating of the first main reaction pond first stage, the first main reaction pond is carried out to strain water, while the cycle stage that the first main reaction pond is intake, is aerated and precipitated；After the precipitating of the second main reaction pond first stage, the second main reaction pond is carried out to strain water, while the cycle stage that the second main reaction pond is intake, is aerated and precipitated.Without controlling inlet valve, water inlet is persistently kept unimpeded above-mentioned technique, using water level operational mode is slightly variable, is enabled the continual circulation that carries out in the first main reaction pond and the second main reaction pond strain water, is improved the efficiency of sewage treatment, reduce operation and management difficulty.
Description
Technical field
The present invention relates to technical field of sewage, more particularly, to a kind of sewage treatment process.
Background technique
Sewage treatment SBR is sequencing batch active sludge abbreviation, is a modification of existing activated sludge process, the system
It include pre-reaction pond and main reaction pond including selection pond and two groups of reaction tanks, reaction tank.Pond and two pre-reaction ponds are selected to connect
Logical, pre-reaction pond is connected to corresponding main reaction pond.Valve is installed between selection pond and pre-reaction pond, user passes through control
Being opened and closed to control the water inlet of each group reaction tank for valve, is equipped with water decanter in reaction tank, presses water inlet+stirring in the process of running
(optional)+aeration+stirring (optional)+precipitates+strains water+idle period and runs, after the completion of first group of reaction tank process cycle
Start to strain water, corresponding inlet valve should be closed at this time, and open the corresponding inlet valve of second group of reaction tank, second group of reaction tank is opened
Begin to intake, the sewage that first group of reaction tank is handled well is strained to lowest water level stopping and strains water；Second group of reaction tank is into starting after complete water
Repeat the cycle of operation of first group of reaction tank.
But due to needing to need to open and close each pond inlet valve, strict control according to the period in the operational process of sewage treatment
Minimum liquid level and highest liquid level, management and operation difficulty are larger.
Summary of the invention
The purpose of the present invention is to provide a kind of sewage treatment process, existing in the prior art due in sewage to improve
It needs to need to open and close each pond inlet valve, strict control minimum liquid level and highest liquid level according to the period in the operational process of processing, operate
It is cumbersome, it is difficult to fully achieve automatic control, management and the larger technical problem of operation difficulty.
Sewage treatment process provided by the invention, comprising:
Enable liquid from selection pond enter the first main reaction pond, the first main reaction pond intake, be aerated and precipitated first
The step of stage；
Enable liquid from selection pond enter the second main reaction pond, the second main reaction pond intake, be aerated and precipitated first
The step of stage；
After the precipitating of the first main reaction pond first stage, the first main reaction pond is carried out to strain water, while first is main
The step of cycle stage that reaction tank is intake, is aerated and precipitated；
After the precipitating of the second main reaction pond first stage, the second main reaction pond is carried out to strain water, while second is main
The step of cycle stage that reaction tank is intake, is aerated and precipitated；
First main reaction pond and the second main reaction pond are set side by side；Water intake velocity is less than or equal to strain water speed.
Further, the step of enabling liquid enter the first main reaction pond from selection pond includes: that liquid is enabled to enter from selection pond
First pre-reaction pond, liquid flow into the step in the first main reaction pond via the first pre-reaction pond；Liquid is enabled to enter from selection pond
The step of second main reaction pond includes: that liquid is enabled to enter the second pre-reaction pond from selection pond, and liquid is flowed via the second pre-reaction pond
Enter the step in the second main reaction pond.
Further, it uses down when liquid flows into the first pre-reaction pond and the second pre-reaction pond from selection pond into mode；Liquid
Body uses down when separately flowing into the first main reaction pond and the second main reaction pond from the first pre-reaction pond and the second pre-reaction pond into side
Formula.
Further, when carrying out straining water, the falling head of water decanter is 10cm.
Further, the first main reaction pond and the second main reaction pond are cuboid, the length-width-ratio of cuboid be greater than etc.
In 4.
Further, setting is aerated there are two the first surface aerating machine in the first main reaction pond；
Two the first surface aerating machines are located on the diagonal line in the first main reaction pond.
Further, the first surface aerating machine is pulling flow type surface aerating machine.
Further, setting is aerated there are two the second surface aerating machine in the second main reaction pond；
Two the second surface aerating machines are located on the diagonal line in the second main reaction pond.
Further, the second surface aerating machine is pulling flow type surface aerating machine.
Further, the first sludge reflux pump and the second dirt are respectively arranged in the first main reaction pond and the second main reaction pond
Mud reflux pump.
Sewage treatment process provided by the invention, in the process of running, sewage are respectively enterd from selection pond to the first master
In reaction tank and the second main reaction pond, the first main reaction pond and the second main reaction pond carry out aeration and place of settling to sewage respectively
Reason, the first main reaction pond and the second main reaction pond are respectively completed water inlet, aeration and the precipitating of first stage.When the first main reaction pond
After first stage is precipitated, the primary water of the static pool surface in the first main reaction pond is drained, enables the first master anti-due to straining water
Water in Ying Chi declines, and the water in the first main reaction pond selects the water flow in pond less than the water in the second main reaction pond
Enter to the first main reaction pond, carry out second stage simultaneously in the first reaction tank at this time strains water, aeration and precipitation process.
When the first main reaction pond is after straining water and terminate, the second main reaction pond terminated to first stage precipitating carries out straining water process, will
The primary water of the static pool surface in second main reaction pond drains, and enables the water in the second main reaction pond decline due to straining water, and second
Water in main reaction pond selects the sewage in pond to flow into the second main reaction pond less than the water in the first main reaction pond,
Carry out second stage simultaneously in the second main reaction pond at this time strains water, aeration and precipitation process, while the first main reaction pond
Inside persistently carry out the aeration and precipitation process of second section.When the second main reaction pond is after straining water and terminate, the first main reaction pond
The precipitating of second stage finishes, and continues to carry out straining water process to the first main reaction pond, loops back and forth like this carry out sewage treatment.
From the foregoing, it will be observed that above-mentioned sewage treatment process, without controlling inlet valve, water inlet is persistently kept unimpeded, using being slightly variable
Water level operational mode enables the first main reaction pond and the second main reaction pond continual can carry out circulation and strains water, improves sewage
The difficulty of the efficiency of processing, operation and management is lower.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the step block diagram of sewage treatment process provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of sewage disposal system provided in an embodiment of the present invention；
Fig. 3 be another embodiment of the present invention provides sewage treatment process step block diagram.
Icon: 1- selects pond；The first main reaction of 2- pond；The second main reaction of 3- pond；The first pre-reaction of 4- pond；5- second is pre- anti-
Ying Chi；The first water decanter of 6-；The second water decanter of 7-；The first surface aerating machine of 8-；The second surface aerating machine of 9-.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
"vertical", "horizontal", "inner", "outside" etc., indicated by orientation or positional relationship be orientation based on the figure or position
Relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
There is specific orientation, be constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, as occurred
Term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the step block diagram of sewage treatment process provided in an embodiment of the present invention；Fig. 2 is provided in an embodiment of the present invention
The structural schematic diagram of sewage disposal system；As depicted in figs. 1 and 2, sewage treatment process provided in this embodiment, comprising: enable liquid
Body enters the first main reaction pond 2, the step for the first stage that the first main reaction pond 2 is intake, is aerated and precipitated from selection pond 1
Suddenly；Liquid is enabled to enter the second main reaction pond 3, the first rank that the second main reaction pond 3 is intake, is aerated and precipitated from selection pond 1
The step of section；After the precipitating of 2 first stage of the first main reaction pond, the first main reaction pond 2 is carried out straining water, while first
The step of cycle stage that main reaction pond 2 is intake, is aerated and precipitated；When the precipitating knot of 3 first stage of the second main reaction pond
Shu Hou strain water to the second main reaction pond 3, while the second main reaction pond 3 cycle stage for being intake, be aerated and being precipitated
Step；First main reaction pond 2 and the second main reaction pond 3 are set side by side；Water intake velocity is less than or equal to strain water speed.
Sewage treatment process provided in this embodiment, in the process of running, sewage are respectively enterd from selection pond 1 to first
In main reaction pond 2 and the second main reaction pond 3, the first main reaction pond 2 and the second main reaction pond 3 are aerated and are sunk to sewage respectively
Shallow lake processing, the first main reaction pond 2 and second go out water inlet, aeration and precipitating that reaction tank 3 is respectively completed the first stage.As the first master
After 2 first stage of reaction tank is precipitated, the primary water of the static pool surface in the first main reaction pond 2 is drained, is enabled due to straining water
Water in first main reaction pond 2 declines, and the water in the first main reaction pond 2 is less than the water in the second main reaction pond 3, selection
Water in pond 1 flows into the first main reaction pond 2, and carry out second stage simultaneously in the first reaction tank at this time strains water, aeration
And precipitation process.When the first main reaction pond 2 is after straining water and terminate, the second main reaction pond 3 that first stage precipitating is terminated
It carries out straining water process, the primary water of the static pool surface in the second main reaction pond 3 is drained, enable the second main reaction pond 3 due to straining water
Interior water declines, and the water in the second main reaction pond 3 selects the sewage stream in pond 1 less than the water in the first main reaction pond 2
Enter to the second main reaction pond 3, carry out second stage simultaneously in the second main reaction pond 3 at this time strains water, aeration and precipitating
Processing, while the aeration and precipitation process of second stage are persistently carried out in the first main reaction pond 2.When straining for the second main reaction pond 3
After water terminates, the precipitating of 2 second stage of the first main reaction pond is finished, and continues to carry out straining water process to the first main reaction pond 2,
Loop back and forth like this carry out sewage treatment.
From the foregoing, it will be observed that above-mentioned sewage treatment process, without controlling inlet valve, water inlet is persistently kept unimpeded, using being slightly variable
Water level operational mode enables the first main reaction pond 2 and the second main reaction pond 3 continual can carry out circulation and strains water, improves dirt
The difficulty of the efficiency of water process, operation and management is lower.
Fig. 3 be another embodiment of the present invention provides sewage treatment process step block diagram；As shown in Figures 2 and 3, upper
On the basis of stating embodiment, further, enable liquid from selection pond 1 enter the first main reaction pond 2 the step of include: enable liquid from
Pond 1 is selected to enter the first pre-reaction pond 4, liquid flows into the step in the first main reaction pond 2 via the first pre-reaction pond 4；Enable liquid
The step of body enters the second main reaction pond 3 from selection pond 1 includes: that liquid is enabled to enter the second pre-reaction pond 5, liquid from selection pond 1
The step in the second main reaction pond 3 is flowed into via the second pre-reaction pond 5.
Wherein, surface aerating machine and blender are provided in the first pre-reaction pond 4 and the second pre-reaction pond 5.
At the end of the precipitating of the first stage in the first main reaction pond 2 and when after the precipitating in following cycle stage,
Complete water inlet in the first main reaction pond 2.When starting to carry out straining water, water level changes, and starts the water inlet of next stage.
At the end of the precipitating of the first stage in the second main reaction pond 3 and when after the precipitating in following cycle stage,
Complete water inlet in the second main reaction pond 3.When starting to carry out straining water, water level changes, and starts the water inlet of next stage.
In the present embodiment, the first pre-reaction pond 4 and the second pre-reaction pond 5 have the function of denitrogenation and release phosphorus, can will be high
Molecular organic is processed into low molecule organic matter, enables sewage can be faster when entering the first main reaction pond 2 and the second main reaction pond 3
Processing.
On the basis of the above embodiments, further, liquid is pre- from selection pond 1 the first pre-reaction pond of inflow 4 and second
It is used down when reaction tank 5 into mode；Liquid separately flows into the first main reaction pond 2 from the first pre-reaction pond 4 and the second pre-reaction pond 5
It uses down when with the second main reaction pond 3 into mode.
Further, when carrying out straining water, the falling head of water decanter is 10cm.
Wherein, the water outlet in pond 1, the water inlet in the first pre-reaction pond 4 and the second pre-reaction pond 5, the first pre-reaction are selected
The water inlet of the water outlet in pond 4 and the second pre-reaction pond 5, the first main reaction pond 2 and the second main reaction pond 3 is respectively positioned under pond body
End.
It is provided with the first water decanter 6 in first main reaction pond 2, the second water decanter 7 is provided in the second main reaction pond 3.
In the present embodiment, under can guarantee into mode when liquid flows, it is smaller to the intracorporal water currents in pond, prevent pair
Water process is strained to impact.
As shown in Fig. 2, on the basis of the above embodiments, further, the first main reaction pond 2 and the second main reaction pond 3
For cuboid, the length-width-ratio of cuboid is more than or equal to 4.
Further, setting is aerated there are two the first surface aerating machine 8 in the first main reaction pond 2；Two the first surface aerating machines 8
On the diagonal line in the first main reaction pond 2.
Further, setting is aerated there are two the second surface aerating machine 9 in the second main reaction pond 3；Two the second surface aerating machines 9
On the diagonal line in the second main reaction pond 3.
Further, the first surface aerating machine 8 is pulling flow type surface aerating machine.
Further, the second surface aerating machine 9 is pulling flow type surface aerating machine.
Sewage can recycle 200-300 times along pond body in one aeration period.
It is good that first surface aerating machine 8 and the second surface aerating machine 9 are formed in the first main reaction pond 2 and the second main reaction pond 3 respectively
Oxygen area, dissolved oxygen concentration reach 4-5mg/l.
What the first surface aerating machine 8 and the second surface aerating machine 9 were formed in the first main reaction pond 2 and the second main reaction pond 3 respectively lacks
Oxygen area, dissolved oxygen concentration reach 0.5mg/l.
In the present embodiment, two the first surface aerating machines 8 in the first main reaction pond 2 are from the diagonal sewage pushed in pond, sewage
Contrary tangential velocity is generated along pond body two sides and forms eddy flow, and sewage is made to form the rotary motion of circulation in pond body,
First surface aerating machine, 8 leading portion is oxygenated section downstream and forms aerobic zone, and the process of carbonization and nitrification is completed in this stage, and exposes in the first table
Four angles of 8 back segment of machine and rectangle pond body form anoxic zone and complete denitrification process, it is therefore not necessary in the first main reaction pond 2
Mixing plant is set, without completing denitrogenation dephosphorizing by stirring, by the feature of pond body and the setting feature of the first surface aerating machine 8
Nitrification and denitrification process is completed, to enhance denitrification process.Similarly, two the second surface aerating machines 9 in the second main reaction pond 3
Also it can play the role of strengthened denitrification process.Pulling flow type surface aerating machine helps to create circulating current water.
On the basis of the above embodiments, further, it is respectively set in the first main reaction pond 2 and the second main reaction pond 3
There are the first sludge reflux pump and the second sludge reflux pump.
Wherein, the first sludge pump and the second spoil disposal are also respectively provided in the first main reaction pond 2 and the second main reaction pond 3
Pump.
The dissolved oxygen in pond 1 is selected to control in 0.2mg/l or less.
The implementation of phosphorus removal functional includes anaerobic phosphorus release and aerobic phosphorus absorption mistake of the main reaction pond sludge reflux to selection pond 1
Journey, and when the first main reaction pond 2 or the second main reaction pond 3 are when straining water, sewage slowly enter selection pond 1, corresponding simultaneously
The first pre-reaction pond 4 or the second pre-reaction pond 5, it is simultaneous at this time in the state of no dissolved oxygen and absolutely not nitre state oxygen
Dissolubility BOD (biochemical oxygen demand (BOD) or bod) is converted low molecule tunning VFAs (volatile fat by property bacterium
Acid), these function bacterium obtain the release process that VFAs completes phosphorus, since water body does not disturb at this time, compare in the release for completing phosphorus
Suction phosphorus process when being the subsequent oxygenation into aeration phase after thoroughly has prepared condition.
In the present embodiment, the first main reaction pond 2 and the second main reaction pond 3 pass through the first sludge reflux pump in aeration respectively
It is back in selection pond 1 with the second sludge reflux pump, during reflux, completes the process of anaerobic phosphorus release and aerobic phosphorus absorption,
To enhance phosphorus removal functional.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of sewage treatment process characterized by comprising
Enable liquid from selection pond enter the first main reaction pond, first main reaction pond intake, be aerated and precipitated first
The step of stage；
Enable liquid from selection pond enter the second main reaction pond, second main reaction pond intake, be aerated and precipitated first
The step of stage；
After the precipitating of first main reaction pond first stage, first main reaction pond is carried out to strain water, while institute
The step of stating the cycle stage that the first main reaction pond is intake, is aerated and precipitated；
After the precipitating of second main reaction pond first stage, second main reaction pond is carried out to strain water, while institute
The step of stating the cycle stage that the second main reaction pond is intake, is aerated and precipitated；
First main reaction pond and second main reaction pond are set side by side；Water intake velocity is less than or equal to strain water speed.
2. sewage treatment process according to claim 1, which is characterized in that liquid is enabled to enter the first main reaction from selection pond
The step of pond includes: that liquid is enabled to enter the first pre-reaction pond from the selection pond, and liquid flows into first via the first pre-reaction pond
Step in main reaction pond；
The step of enabling liquid enter the second main reaction pond from selection pond includes: that liquid is enabled to enter the second pre-reaction from the selection pond
Pond, liquid flow into the step in the second main reaction pond via the second pre-reaction pond.
3. sewage treatment process according to claim 2, which is characterized in that liquid flows into described first from the selection pond
It uses down when pre-reaction pond and the second pre-reaction pond into mode；Liquid is from first pre-reaction pond and described second pre- anti-
Ying Chi is used down when separately flowing into first main reaction pond and the second main reaction pond into mode.
4. sewage treatment process according to claim 1, which is characterized in that when carrying out straining water, the decline of water decanter is high
Degree is 10cm.
5. sewage treatment process according to claim 1, which is characterized in that first main reaction pond and second master
Reaction tank is cuboid, and the length-width-ratio of cuboid is more than or equal to 4.
6. sewage treatment process according to claim 5, which is characterized in that in first main reaction pond there are two settings
First surface aerating machine is aerated；
Two first surface aerating machines are located on the diagonal line in first main reaction pond.
7. sewage treatment process according to claim 6, which is characterized in that first surface aerating machine is the exposure of pulling flow type table
Machine.
8. sewage treatment process according to claim 5, which is characterized in that in second main reaction pond there are two settings
Second surface aerating machine is aerated；
Two second surface aerating machines are located on the diagonal line in second main reaction pond.
9. sewage treatment process according to claim 8, which is characterized in that second surface aerating machine is the exposure of pulling flow type table
Machine.
10. sewage treatment process according to claim 1, which is characterized in that first main reaction pond and described second
The first sludge reflux pump and the second sludge reflux pump are respectively arranged in main reaction pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067746.9A CN109019849A (en) | 2018-09-13 | 2018-09-13 | A kind of sewage treatment process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811067746.9A CN109019849A (en) | 2018-09-13 | 2018-09-13 | A kind of sewage treatment process |
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| CN109019849A true CN109019849A (en) | 2018-12-18 |
Family
ID=64621989
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201012908Y (en) * | 2007-01-26 | 2008-01-30 | 银河水务股份有限公司 | Combined type surface aeration device of integral biological treatment tank |
| CN102674548A (en) * | 2012-05-09 | 2012-09-19 | 广州市市政工程设计研究院 | Sequencing batch A2O sewage treatment method and device |
| CN104291530A (en) * | 2014-10-17 | 2015-01-21 | 中山环保产业股份有限公司 | Sequencing batch biochemical sewage treatment device and sedimentation-drainage method thereof |
| CN205616644U (en) * | 2015-11-16 | 2016-10-05 | 济南龙派节能环保工程有限公司 | Bury formula sewage treatment plant SBR |
| CN106745699A (en) * | 2016-11-28 | 2017-05-31 | 广西大学 | A kind of composite S BR waste water treatment process |
-
2018
- 2018-09-13 CN CN201811067746.9A patent/CN109019849A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201012908Y (en) * | 2007-01-26 | 2008-01-30 | 银河水务股份有限公司 | Combined type surface aeration device of integral biological treatment tank |
| CN102674548A (en) * | 2012-05-09 | 2012-09-19 | 广州市市政工程设计研究院 | Sequencing batch A2O sewage treatment method and device |
| CN104291530A (en) * | 2014-10-17 | 2015-01-21 | 中山环保产业股份有限公司 | Sequencing batch biochemical sewage treatment device and sedimentation-drainage method thereof |
| CN205616644U (en) * | 2015-11-16 | 2016-10-05 | 济南龙派节能环保工程有限公司 | Bury formula sewage treatment plant SBR |
| CN106745699A (en) * | 2016-11-28 | 2017-05-31 | 广西大学 | A kind of composite S BR waste water treatment process |
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Application publication date: 20181218 |