CN110845009B - Anoxic and aerobic biochemical integrated device - Google Patents
Anoxic and aerobic biochemical integrated device Download PDFInfo
- Publication number
- CN110845009B CN110845009B CN201911090718.3A CN201911090718A CN110845009B CN 110845009 B CN110845009 B CN 110845009B CN 201911090718 A CN201911090718 A CN 201911090718A CN 110845009 B CN110845009 B CN 110845009B
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- reaction zone
- biological reaction
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- mixing chamber
- water
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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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
- 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
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- 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 invention discloses an anoxic and aerobic biochemical integrated device which is characterized in that a water inlet at the bottom of the device is communicated with a first gas-water mixing chamber, the first gas-water mixing chamber is communicated with a front aerobic biological reaction zone, two sides of the upper part of the front aerobic biological reaction zone are shunted, separation nets which are obliquely arranged are arranged on two side flow channels, and a filler recovery zone is arranged between the front aerobic biological reaction zone and the separation nets on two sides; the outer side of the separation net is communicated with the anoxic biological reaction zone; an adjustable diversion assembly is arranged at the water outlet at the bottom of the anoxic biological reaction zone to control the water quantity entering the first gas-water mixing chamber and the second gas-water mixing chamber; an aerator is arranged in the second gas-water mixing chamber; the end of the flow passage of the second gas-water mixing chamber is communicated with the bottom of the rear aerobic biological reaction zone, the rear aerobic biological reaction zone is internally provided with aerobic biological filler, and the outer side of the upper part of the rear aerobic biological reaction zone is connected with a water outlet weir.
Description
Technical Field
The invention relates to an anoxic and aerobic biochemical integrated device, which is particularly applied to multistage biochemical combined water treatment and belongs to the technical field of sewage and wastewater biochemical treatment.
Background
Organic matters are one of the main pollutants which cause water pollution at present, such as artificially synthesized compounds, fat, nitrogen-containing compounds and the like, and if the organic matters cannot be effectively removed in the water, the organic matters can have great influence on the surrounding ecological environment.
The biochemical water treatment is widely applied to the treatment of organic polluted water bodies as a cheap and efficient water treatment means. However, the traditional distributed sewage treatment equipment has high power consumption in the operation process due to the need of a large amount of aeration and reflux, and has the problems of lower bioactivity, low reaction efficiency and the like of a reaction system due to low mixing degree of organic matters in a reaction zone.
Disclosure of Invention
The invention aims to solve the technical problem of reducing the running power consumption and improving the reaction efficiency.
In order to solve the technical problems, the technical scheme of the invention provides an anoxic and aerobic biochemical integrated device, which is characterized by comprising a water inlet arranged at the bottom of the device, wherein the water inlet is communicated with a first gas-water mixing chamber, and a water inlet guide plate and an aerator are arranged in the first gas-water mixing chamber; the upper part of the first gas-water mixing chamber is communicated with a front aerobic biological reaction zone, aerobic biological filler is arranged in the front aerobic biological reaction zone, two sides of the upper part of the front aerobic biological reaction zone are branched, the flow channels on two sides are respectively provided with a separation net which is obliquely arranged, and a filler recovery zone is arranged between the front aerobic biological reaction zone and the separation nets on two sides; the outer side of the separation net is communicated with an anoxic biological reaction zone, and anoxic biological fillers are arranged in the anoxic biological reaction zone; an adjustable diversion assembly is arranged at the water outlet at the bottom of the anoxic biological reaction zone, and is respectively communicated with the first gas-water mixing chamber and the second gas-water mixing chamber and controls the water quantity entering the first gas-water mixing chamber and the second gas-water mixing chamber; an aerator is arranged in the second gas-water mixing chamber; the end of the flow passage of the second gas-water mixing chamber is communicated with the bottom of the rear aerobic biological reaction zone, the rear aerobic biological reaction zone is internally provided with aerobic biological filler, and the outer side of the upper part of the rear aerobic biological reaction zone is connected with a water outlet weir.
Preferably, the inclination angle of the separation net ranges from 60 degrees to less than 90 degrees.
Preferably, the adjustable diversion assembly comprises a short flow hole and an electric adjustable deflector, the short flow hole is communicated with the outlet of the anoxic biological reaction zone and the post-aerobic biological reaction zone, and the electric adjustable deflector controls the water quantity entering the first gas-water mixing chamber and the second gas-water mixing chamber by adjusting the water flow direction of the anoxic biological reaction zone.
Preferably, a sludge hopper for collecting excess sludge generated in the device is provided below the device.
The invention has the beneficial effects that:
1. the inlet water and the outlet water of the anoxic biological reaction zone are mixed through the air-water mixing chamber, the water reflux is realized, the reaction efficiency is improved, and the use of a waste water reflux pump is avoided;
2. by setting the aeration quantity, the biological filler is in a complete fluidization state, the contact area of the filler and water is increased, and compared with the traditional aerobic biochemical system, the organic matter removal efficiency is improved by more than 20%;
3. the filler in the aerobic biological reaction zone is in a complete fluidization state, so that the mixing degree of materials is improved, and the reaction efficiency of the aerobic biological reaction zone is improved;
4. the separation net and the filler recovery area can intercept the filler to ensure that microbial colonies in the filler always keep living in an aerobic environment, so that the biological activity of the biological colonies is improved, and the rate of aerobic biochemical reaction is improved;
5. through adjustable reposition of redundant personnel subassembly, the ratio of the play water entering gas-water mixing chamber of oxygen deficiency biological reaction district and No. two gas-water mixing chamber improves the removal efficiency of ammonia nitrogen.
6. By designing the front aerobic biological reaction zone and the rear aerobic biological reaction zone, the organic matters in the wastewater can be subjected to multistage advanced treatment, and dominant strains are generated and enriched in different aerobic sections, so that the overall reaction efficiency of the reactor is improved.
7. Through the combined design of the aerator, the separation net and the adjustable flow dividing component, the internal reflux of the wastewater is realized, and the reflux ratio can be regulated and controlled simultaneously while a reflux pump is omitted.
Drawings
Fig. 1 is a schematic structural diagram of an anoxic and aerobic biochemical integrated device provided in this embodiment.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Examples
As shown in fig. 1, the invention comprises a first air-water mixing chamber 1, wherein inlet water enters from a water inlet at the bottom of the equipment, and an inlet water guide plate and an aerator 2 are arranged in the air-water mixing chamber. After being fully mixed with air, the inlet water enters the front aerobic biological reaction zone 4 in the form of a gas-water mixture, and the initial kinetic energy of the gas-water mixture can ensure that the gas-water mixture passes through the front aerobic biological reaction zone 4 and reaches the top of the device.
Front aerobic biological reaction zone 4: the gas-water mixture enters the front aerobic biological reaction zone 4 from the gas-water mixing chamber, the front aerobic biological reaction zone 4 is internally provided with aerobic biological filler, the aerobic biological filler can be in a fluidized state under the plug flow action of the gas-water mixture and fully mixed with the gas-water system, the high-speed fluidization state can obtain higher mass transfer rate and oxygen utilization rate, and the high-speed fluidization state also has the demoulding effect, so that bacterial colonies in the filler keep high biological activity, and the high-efficiency biochemical reaction is ensured.
The two sides of the upper part of the front aerobic biological reaction zone 4 are divided, the two side runners are respectively provided with a separation net 5 which is obliquely arranged, the separation nets 5 isolate the anoxic biological reaction zone and the front aerobic biological reaction zone 4, and the separation nets 5 are provided with an inclination angle of 60 degrees, so that the aerobic biological filler can be intercepted at the separation nets and automatically slide down to enter the inner side filler recovery zone 3 under the action of gravity.
The filler recovery zone 3 is positioned between the position of the front aerobic biological reaction zone 4 and the position of the separation net 5, biological filler trapped on the separation net 5 and sliding down enters the filler recovery zone 3, and the filler recovery zone 3 guides the aerobic biological filler to the first gas-water mixing chamber 1 so as to mix the biological filler with the gas-water mixture again.
Anoxic biological reaction zone 6: the sewage passing through the separation net 5 enters the anoxic biological reaction zone 6, and nitrate generated by the previous stage nitration reaction can be efficiently converted into nitrogen. The anoxic biochemical reaction zone is provided with high-density anoxic biological filler, and is an anoxic environment, so that the denitrification rate can be improved to the greatest extent.
Adjustable shunt assembly 7: the control of the reflux quantity of the front aerobic biological reaction zone 4 is realized by the anaerobic biological reaction zone 6 water outlet through the adjustable flow distribution component 7, the adjustable flow distribution component 7 comprises a short flow hole and an electric adjustable flow guide plate, part of the anaerobic biological reaction zone 6 water outlet enters the rear aerobic biological reaction zone through the short flow hole, and the rest water outlet adjusts the water flow direction through the adjustable flow guide plate, so that the water quantity entering the first air-water mixing chamber 1 and the second air-water mixing chamber 8 is adjusted.
A second gas-water mixing chamber 8: the water passing through the adjustable diversion component 7 enters a second gas-water mixing chamber 8, an aerator 2 is arranged at the second gas-water mixing chamber, and the water and the air are fully mixed at the second gas-water mixing chamber and then rise into a post-aerobic biological reaction zone 9.
Post-aerobic biological reaction zone 9: the mixture of the second gas-water mixing chamber 8 can rise into the post-aerobic biological reaction zone 9 due to the initial kinetic energy, high-density aerobic biological filler is arranged at the post-aerobic biological reaction zone, residual organic pollutants in water can be efficiently degraded, and meanwhile, a large number of high-biological activity bacterial colonies are contained in the biological filler, so that decarburization and nitrogen removal reactions can be efficiently carried out, and the quality of effluent water is ensured.
Sludge hopper 11: the sludge hopper 11 is disposed at a lower portion of the overall apparatus for collecting surplus sludge generated in the system and periodically discharging.
To verify the practical effect of the invention, COD is obtained after domestic sewage is collected and passed through a residential septic tank cr The average concentration is less than 350mg/L and the total nitrogen is less than 40mg/L.
COD of the effluent after being treated by the device of the invention cr Stabilizing below 100mg/L and total nitrogen stabilizing below 20 mg/L. Meanwhile, the device has good running stability, and can realize COD at temperature and incoming water cr When the change amplitude is large, the conditions such as sludge expansion or floating and the like do not occur, and various water outlet indexes are quite stable.
Claims (2)
1. The anoxic and aerobic biochemical integrated device is characterized by comprising a water inlet arranged at the bottom of the device, wherein the water inlet is communicated with a first gas-water mixing chamber, and a water inlet guide plate and an aerator are arranged in the first gas-water mixing chamber; the upper part of the first gas-water mixing chamber is communicated with a front aerobic biological reaction zone, aerobic biological filler is arranged in the front aerobic biological reaction zone, two sides of the upper part of the front aerobic biological reaction zone are branched, the flow channels on two sides are respectively provided with a separation net which is obliquely arranged, and a filler recovery zone is arranged between the front aerobic biological reaction zone and the separation nets on two sides; the outer side of the separation net is communicated with an anoxic biological reaction zone, the separation net isolates the anoxic biological reaction zone from the front aerobic biological reaction zone, and anoxic biological fillers are arranged in the anoxic biological reaction zone; an adjustable diversion assembly is arranged at the water outlet at the bottom of the anoxic biological reaction zone, and is respectively communicated with the first gas-water mixing chamber and the second gas-water mixing chamber and controls the water quantity entering the first gas-water mixing chamber and the second gas-water mixing chamber; an aerator is arranged in the second gas-water mixing chamber; the end of the flow channel of the second gas-water mixing chamber is communicated with the bottom of the rear aerobic biological reaction zone, an aerobic biological filler is arranged in the rear aerobic biological reaction zone, and the outer side of the upper part of the rear aerobic biological reaction zone is connected with a water outlet weir; the adjustable diversion assembly comprises a short flow hole and an electric adjustable deflector, the short flow hole is communicated with the outlet of the anoxic biological reaction zone and the rear aerobic biological reaction zone, and the electric adjustable deflector controls the water quantity entering the first gas-water mixing chamber and the second gas-water mixing chamber by adjusting the water flow direction of the water outlet of the anoxic biological reaction zone.
2. An anoxic and oxic biochemical integrated device according to claim 1, wherein a sludge hopper for collecting excess sludge generated in the device is arranged below the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090718.3A CN110845009B (en) | 2019-11-09 | 2019-11-09 | Anoxic and aerobic biochemical integrated device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911090718.3A CN110845009B (en) | 2019-11-09 | 2019-11-09 | Anoxic and aerobic biochemical integrated device |
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| Publication Number | Publication Date |
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| CN110845009A CN110845009A (en) | 2020-02-28 |
| CN110845009B true CN110845009B (en) | 2023-08-01 |
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| CN201911090718.3A Active CN110845009B (en) | 2019-11-09 | 2019-11-09 | Anoxic and aerobic biochemical integrated device |
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| CN110372097A (en) * | 2019-08-12 | 2019-10-25 | 桂润环境科技股份有限公司 | A kind of energy-saving tower inner circulation reactor |
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-
2019
- 2019-11-09 CN CN201911090718.3A patent/CN110845009B/en active Active
Patent Citations (16)
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| CN101844858A (en) * | 2010-06-17 | 2010-09-29 | 北京交通大学 | Aerobic-anoxic-anaerobic integrated module type sewage fast denitrogenation reactor and treatment method thereof |
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| CN110845009A (en) | 2020-02-28 |
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