CN115557607B - Integrated biological reaction tank system and method - Google Patents
Integrated biological reaction tank system and method Download PDFInfo
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- CN115557607B CN115557607B CN202211062023.6A CN202211062023A CN115557607B CN 115557607 B CN115557607 B CN 115557607B CN 202211062023 A CN202211062023 A CN 202211062023A CN 115557607 B CN115557607 B CN 115557607B
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 104
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 104
- 239000010865 sewage Substances 0.000 claims description 45
- 238000011282 treatment Methods 0.000 claims description 37
- 206010021143 Hypoxia Diseases 0.000 claims description 24
- 230000015556 catabolic process Effects 0.000 claims description 24
- 238000006731 degradation reaction Methods 0.000 claims description 24
- 238000004062 sedimentation Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000005273 aeration Methods 0.000 claims description 16
- 230000001146 hypoxic effect Effects 0.000 claims description 16
- 230000007954 hypoxia Effects 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 6
- 239000006247 magnetic powder Substances 0.000 claims description 6
- 230000001376 precipitating effect Effects 0.000 claims description 6
- 239000008213 purified water Substances 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 49
- 239000010802 sludge Substances 0.000 description 17
- 238000010992 reflux Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005352 clarification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- KVUYSIIZYQUVMT-UHFFFAOYSA-N 1,2-diisothiocyanatoethane Chemical compound S=C=NCCN=C=S KVUYSIIZYQUVMT-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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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
- C02F3/30—Aerobic and anaerobic processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
-
- 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
- C02F3/28—Anaerobic digestion processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/38—Organic compounds containing nitrogen
-
- 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)
- Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Analytical Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
According to the integrated biological reaction tank system and the method, the first low-oxygen area and the second low-oxygen area are configured, and the air in the second low-oxygen area is pushed to the first low-oxygen area through the air impeller, wherein the flow rate of the air pushing is increased along with the time to be gradually increased with a set gradient, and the flow rate is initialized to be the initial flow rate after a set period, so that the air concentration of the first low-oxygen area is continuously increased in a period, the reaction efficiency of the first low-oxygen area can be controlled to be lower than that of the second low-oxygen area, the air quantity of the first low-oxygen area and the air quantity of the second low-oxygen area can be differentiated under the condition of the same air quantity, and the overall reaction efficiency is improved.
Description
Technical Field
The application relates to the technical field of sewage treatment, in particular to an integrated biological reaction tank system and method.
Background
In the prior art, the biological reaction treatment efficiency in the biological reaction tank is lower, and even advanced technology is adopted, the higher treatment efficiency is not obtained, so that a plurality of defects exist.
Disclosure of Invention
The application provides an integrated biological reaction tank system and method, which aim to solve the problem that the current driving circuit needs to provide more data lines, so that the cost of an Integrated Circuit (IC) is increased.
Embodiments of the first aspect of the present application provide an integrated biological reaction tank system, comprising:
an anaerobic zone for performing an anaerobic reaction on the sewage;
the first low-oxygen area is used for carrying out first degradation treatment on the sewage after anaerobic reaction;
the second low-oxygen area is used for carrying out second degradation treatment on the sewage treated by the first low-oxygen area;
the sedimentation zone is used for precipitating the sewage treated by the second hypoxia zone to obtain purified water and sediment; and
an air impeller for pushing air in the second hypoxic region to the first hypoxic region, wherein the flow rate of the air pushing increases with time to set a gradient increment, and the flow rate is initialized to an initial flow rate after a set period.
In a preferred embodiment, further comprising:
the enhanced aeration zone is arranged between the second hypoxia zone and the precipitation zone.
In a preferred embodiment, the settling zone is further in communication with the anaerobic zone to form a return line.
In a preferred embodiment, a biologic filler is disposed within the first hypoxic region.
In a preferred embodiment, a magnetic mixing sedimentation tank is arranged in the sedimentation zone, and magnetic powder is contained in the magnetic mixing sedimentation tank.
Embodiments of a second aspect of the present application provide an integrated biological reaction tank method comprising:
anaerobic reaction treatment is carried out on sewage to be treated to obtain sewage intermediate;
performing first degradation treatment and second degradation treatment on the sewage intermediate;
precipitating the sewage intermediate after the two degradation treatments to obtain purified water; wherein,
the integrated biological reaction tank method further comprises the following steps:
pushing air in the second hypoxic region to the first hypoxic region, wherein the flow rate of the air pushing increases over time to set a gradient increment, and the flow rate is initialized to an initial flow rate after a set period.
In a preferred embodiment, further comprising:
and (3) performing gas explosion treatment on the sewage intermediate after the two degradation treatments.
In a preferred embodiment, the settling zone is further in communication with the anaerobic zone to form a return line.
In a preferred embodiment, a biologic filler is disposed within the first hypoxic region.
In a preferred embodiment, a magnetic mixing sedimentation tank is arranged in the sedimentation zone, and magnetic powder is contained in the magnetic mixing sedimentation tank.
According to the integrated biological reaction tank system and the method, the first low-oxygen area and the second low-oxygen area are configured, and the air in the second low-oxygen area is pushed to the first low-oxygen area through the air impeller, wherein the flow rate of air pushing is increased along with time to set gradient increment, and the flow rate is initialized to be initial flow rate after a set period, so that the air concentration of the first low-oxygen area can be ensured to be continuously increased in a period, the reaction efficiency of the first low-oxygen area can be controlled to be lower than that of the second low-oxygen area, and the air quantity of the first low-oxygen area and the air quantity of the second low-oxygen area can be differentiated under the condition of the same air quantity, so that the overall reaction efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an integrated biological reaction tank system according to an embodiment of the present application.
FIG. 2 is a schematic flow chart of an integrated biological reaction process in an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. It should be noted that the integrated biological reaction tank system and the method disclosed in the application can be used in the technical field of sewage treatment, and can also be used in any field except the technical field of sewage treatment, and the application field of the integrated biological reaction tank system and the method disclosed in the application is not limited.
The embodiment of the application provides an integrated biological reaction tank system, which comprises: an anaerobic zone for performing an anaerobic reaction on the sewage; the first low-oxygen area is used for carrying out first degradation treatment on the sewage after anaerobic reaction; the second low-oxygen area is used for carrying out second degradation treatment on the sewage treated by the first low-oxygen area; the sedimentation zone is used for precipitating the sewage treated by the second hypoxia zone to obtain purified water and sediment; and an air impeller for pushing air in the second hypoxic region to the first hypoxic region, wherein a flow rate of the air pushing increases with time to set a gradient increment, and the flow rate is initialized to an initial flow rate after one set period.
According to the integrated biological reaction tank system, the first low-oxygen area and the second low-oxygen area are configured, air in the second low-oxygen area is pushed to the first low-oxygen area through the air impeller, the flow rate of air pushing is increased along with time to set gradient increment, the flow rate is initialized to be initial flow rate after a set period, and therefore the air concentration of the first low-oxygen area can be guaranteed to be continuously increased in a period, the reaction efficiency of the first low-oxygen area can be controlled to be lower than that of the second low-oxygen area, and the air quantity of the first low-oxygen area and the air quantity of the second low-oxygen area can be differentiated under the condition of the same air quantity, so that the overall reaction efficiency is improved.
In a preferred embodiment, further comprising: the enhanced aeration zone is arranged between the second hypoxia zone and the precipitation zone.
In a preferred embodiment, the settling zone is further in communication with the anaerobic zone to form a return line.
In a preferred embodiment, a biologic filler is disposed within the first hypoxic region.
In a preferred embodiment, a magnetic mixing sedimentation tank is arranged in the sedimentation zone, and magnetic powder is contained in the magnetic mixing sedimentation tank.
In this application, the total air amount of the two low oxygen areas is a constant value, in the prior art, the air amounts of the two low oxygen areas are not communicated with each other, so when the first low oxygen area reacts in a large amount, partial oxygen is generated, the reaction efficiency of the first low oxygen area is gradually reduced continuously, and the second low oxygen area is also the same, in order to ensure a certain efficiency and a certain oxygen content in the prior art, an air pusher is required to be configured, and the air of the first low oxygen area and the air of the second low oxygen area are continuously discharged by matching with manpower, and the discharging efficiency is also required to be controlled during discharging, so that the 'low oxygen environment', rather than the 'no oxygen environment', is ensured, and thus the requirements on equipment and personnel are higher, and in the beginning of the reaction in this application, the air in the second low oxygen area is continuously pushed to the first low oxygen area, the second low oxygen area and the first low oxygen area form a two-stage low oxygen reaction system, so that the former low oxygen area plays a role in pre-reaction, the latter low oxygen area plays a role in more substantial degradation, and therefore, the air in the second low oxygen area is discharged to the first low oxygen area, so that the influence of high oxygen content is exerted in a pre-reaction stage with less influence, and meanwhile, the flow rate of air pushing keeps higher and higher along with the progress of the reaction, so that the second low oxygen area can continuously keep high-efficiency reaction, and the first low oxygen area can treat shallow sewage even if the pre-treatment does not need to degrade deep sewage, so that the shallow sewage layer is formed: the first low-oxygen area carries out shallow sewage treatment, and the second low-oxygen area carries out a gradient scheme of deep sewage treatment, so that the reaction efficiency is maximized.
Specifically, as shown in fig. 1, the wastewater firstly enters an anaerobic zone, a stirrer is arranged in the anaerobic zone and is rapidly mixed with the returned sludge, the anaerobic zone has the function of a biological selection zone, and the returned sludge is mixed with the inlet water, so that the rapid adsorption effect of the activated sludge is fully utilized, the removal of soluble substrates is accelerated, and the degradation of refractory organic matters is well hydrolyzed; meanwhile, phosphorus in the sludge can be effectively released under the anaerobic condition. Meanwhile, the region can effectively inhibit mass propagation of filamentous bacteria, overcome sludge bulking and improve the stability of a system. In the bioselective zone, small amounts of nitrate nitrogen present in the sludge reflux can also be denitrified.
B. The mud-water mixed liquid in the anaerobic zone flows into the front end of the air plug flow zone automatically, the air plug flow zone is provided with an efficient air plug flow device, the inflow water and the mixed liquid (treated wastewater, air provided by a blower is provided by a reflux power source) which flows back in a large ratio are mixed uniformly rapidly, the independent air plug flow zone is arranged in the anaerobic zone, the air plug flow devices are arranged independently, no interference between the air plug flow devices is ensured, the required reflux mixed liquid amount is achieved truly, and the inflow water is diluted rapidly while the impact resistance of the system is improved.
C. And then circularly enters the low-oxygen aeration zone for treatment, the dissolved oxygen in the aeration tank is controlled to be low and stable in real time through an accurate and intelligent dissolved oxygen control system, and the sewage treated by the low-oxygen aeration zone enters the enhanced aeration zone, so that pollutants in the sewage are further removed, and the pollutants are ensured to be degraded to be lower. Meanwhile, the high sludge concentration is controlled to have strong impact resistance, the high volume load is achieved, the occupied area is reduced, the microorganisms are utilized to complete efficient degradation of pollutants such as COD, ammonia nitrogen, total nitrogen and the like, the lifting microporous aeration hose in the low-oxygen aeration area is provided with an original German inlet, meanwhile, the lifting microporous aeration hose has a self-cleaning function, online replacement can be realized, problems of the aeration hose can be judged by opening and closing a branch pipe valve, and a quick-mounting joint is opened after the valve is closed, so that a problem pipeline can be separated from a main pipe, and the problem hose can be directly replaced when an aeration tank is not required to be emptied.
D. The mud-water mixture enters the high-efficiency sedimentation area from the enhanced aeration area, mud-water separation is carried out through the high-efficiency sedimentation device, and clear water is collected by the water collecting tank at the upper part.
E. The sludge deposited at the bottom of the clarification area is pumped into a sludge reflux channel by a sludge reflux pump arranged on a truss-type suction sludge scraper in the clarification area, most of the sludge is refluxed to a water inlet of the anaerobic area to be mixed with inflow water, and the residual sludge is pumped into a sludge concentration tank for sludge dewatering treatment by a residual sludge pump arranged in the sludge reflux channel.
In some embodiments, the aeration hose and the matched system are applicable to the EBIS integrated biological reaction tank, so that the pressurized air from the blower room can be effectively and uniformly and efficiently diffused in the water body, the dissolved oxygen concentration in the sewage is relatively balanced, and the oxygenation effect can be kept for a long time and stably; meanwhile, under the condition of low ventilation, relatively uniform aeration can be realized.
Embodiments of a second aspect of the present application provide an integrated biological reaction tank method comprising:
s1, carrying out anaerobic reaction treatment on sewage to be treated to obtain a sewage intermediate;
s2, performing first degradation treatment and second degradation treatment on the sewage intermediate;
s3, precipitating the sewage intermediate after the two degradation treatments to obtain purified water; wherein,
the integrated biological reaction tank method further comprises the following steps:
and S4, pushing air in the second hypoxia zone to the first hypoxia zone, wherein the flow rate of the air pushing is increased along with time to set gradient increment, and the flow rate is initialized to an initial flow rate after one set period.
According to the integrated biological reaction tank system, the first low-oxygen area and the second low-oxygen area are configured, air in the second low-oxygen area is pushed to the first low-oxygen area through the air impeller, the flow rate of air pushing is increased along with time to set gradient increment, the flow rate is initialized to be initial flow rate after a set period, and therefore the air concentration of the first low-oxygen area can be guaranteed to be continuously increased in a period, the reaction efficiency of the first low-oxygen area can be controlled to be lower than that of the second low-oxygen area, and the air quantity of the first low-oxygen area and the air quantity of the second low-oxygen area can be differentiated under the condition of the same air quantity, so that the overall reaction efficiency is improved.
It can be understood that in this application, the total air amount of the two low oxygen areas is a constant value, in the prior art, the air amounts of the two low oxygen areas are not communicated with each other, so that when the first low oxygen area reacts in a large amount, partial oxygen is generated, the reaction efficiency of the first low oxygen area gradually decreases continuously, and the second low oxygen area is also the same, in order to ensure a certain efficiency and a certain oxygen content in the prior art, an air pusher needs to be configured, and in cooperation with manual work, the air of the first low oxygen area and the air of the second low oxygen area are continuously discharged, and the discharging efficiency needs to be controlled, so that the "low oxygen environment" is ensured, rather than the "no oxygen environment", thus the requirements on equipment and personnel are high, and in the beginning of the reaction in this application, the air in the second low oxygen area is continuously pushed to the first low oxygen area, the second low oxygen area and the first low oxygen area form a two-stage low oxygen reaction system, so that the former low oxygen area plays a role in pre-reaction, the latter low oxygen area plays a role in more substantial degradation, and therefore, the air in the second low oxygen area is discharged to the first low oxygen area, so that the influence of high oxygen content is exerted in a pre-reaction stage with less influence, and meanwhile, the flow rate of air pushing keeps higher and higher along with the progress of the reaction, so that the second low oxygen area can continuously keep high-efficiency reaction, and the first low oxygen area can treat shallow sewage even if the pre-treatment does not need to degrade deep sewage, so that the shallow sewage layer is formed: the first low-oxygen area carries out shallow sewage treatment, and the second low-oxygen area carries out a gradient scheme of deep sewage treatment, so that the reaction efficiency is maximized.
In a preferred embodiment, further comprising: and (3) performing gas explosion treatment on the sewage intermediate after the two degradation treatments.
In a preferred embodiment, the settling zone is further in communication with the anaerobic zone to form a return line.
In a preferred embodiment, a biologic filler is disposed within the first hypoxic region.
In a preferred embodiment, a magnetic mixing sedimentation tank is arranged in the sedimentation zone, and magnetic powder is contained in the magnetic mixing sedimentation tank.
It should be noted that, the display device embodiment, the testing method embodiment and the integrated biological reaction tank system embodiment provided in the embodiments of the present invention may all be referred to each other, which is not limited in this application. The steps of the embodiment of the method for testing the display panel provided in the embodiment of the present application can be increased or decreased accordingly according to the situation, and any method that is easily conceivable to be changed by a person skilled in the art within the technical scope of the present application should be covered within the protection scope of the present application, so that no further description is given.
The foregoing description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, since it is intended that all modifications, equivalents, improvements, etc. that fall within the spirit and scope of the invention.
Claims (10)
1. An integrated biological reaction tank system, comprising:
an anaerobic zone for performing an anaerobic reaction on the sewage;
the first low-oxygen area is used for carrying out first degradation treatment on the sewage after anaerobic reaction;
the second low-oxygen area is used for carrying out second degradation treatment on the sewage treated by the first low-oxygen area;
the sedimentation zone is used for precipitating the sewage treated by the second hypoxia zone to obtain purified water and sediment; and
an air impeller for pushing air in the second hypoxic region to the first hypoxic region, wherein the flow rate of the air pushing increases with time to set a gradient increment, and the flow rate is initialized to an initial flow rate after a set period.
2. The integrated biological reaction tank system of claim 1 further comprising:
the enhanced aeration zone is arranged between the second hypoxia zone and the precipitation zone.
3. The integrated biological reaction tank system of claim 1 wherein the settling zone is further in communication with the anaerobic zone to form a return line.
4. The integrated biological reaction tank system of claim 1 wherein a biological filler is disposed within the first hypoxic region.
5. The integrated biological reaction tank system according to claim 1, wherein a magnetic mixing sedimentation tank is arranged in the sedimentation zone, and magnetic powder is included in the magnetic mixing sedimentation tank.
6. A method of using an integrated biological reaction tank system, comprising:
anaerobic reaction treatment is carried out on sewage to be treated to obtain sewage intermediate;
performing first degradation treatment and second degradation treatment on the sewage intermediate; the first low-oxygen area is used for carrying out first degradation treatment on the sewage after anaerobic reaction; the second low-oxygen area is used for carrying out second degradation treatment on the sewage treated by the first low-oxygen area;
precipitating the sewage intermediate after the two degradation treatments to obtain purified water; wherein,
the using method further comprises the following steps:
pushing air in the second hypoxic region to the first hypoxic region, wherein the flow rate of the air pushing increases over time to set a gradient increment, and the flow rate is initialized to an initial flow rate after a set period.
7. The method of use of claim 6, further comprising:
and (3) carrying out aeration treatment on the sewage intermediate after the two degradation treatments.
8. The method of claim 7, wherein the settling zone is further in communication with the anaerobic zone to form a return line.
9. The method of use according to claim 6, wherein a biologic filler is disposed within the first hypoxic region.
10. The method of claim 6, wherein a magnetic mixing sedimentation tank is provided in the sedimentation zone, and the magnetic mixing sedimentation tank comprises magnetic powder.
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