CN212334754U - Multistage anaerobic anoxic and aerobic treatment device based on MABR - Google Patents
Multistage anaerobic anoxic and aerobic treatment device based on MABR Download PDFInfo
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- CN212334754U CN212334754U CN202022118774.8U CN202022118774U CN212334754U CN 212334754 U CN212334754 U CN 212334754U CN 202022118774 U CN202022118774 U CN 202022118774U CN 212334754 U CN212334754 U CN 212334754U
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Abstract
The utility model relates to a multistage anaerobism oxygen deficiency aerobic treatment device based on MABR relates to water treatment technical field, the utility model discloses a processing apparatus includes total inlet tube, multistage AAMO biological reaction pond and outlet pipe, wherein multistage AAMO biological reaction pond is including a ~ tertiary anaerobic zone that communicates in proper order, a ~ tertiary AMb anoxic zone and a ~ tertiary aerobic zone, sewage gets into the inlet channel from total inlet tube, get into anaerobic zone, anoxic zone and aerobic zone in proper order through regulator allotment water yield, through the function of adjusting MABR disposal area, improve multistage anaerobism good technology more efficiently, combine together MABR technique and multistage anaerobism oxygen deficiency oxygen (MAAO) activated sludge process technology effectively. The utility model discloses degradation load efficiency is high, the flexibility is strong, easy operation, running cost are low, the maintenance of being convenient for, can realize sewage treatment's high-efficient nitrogen and phosphorus removal of reinforceing of low energy consumption low mud volume.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, a multistage anaerobism oxygen deficiency aerobic treatment device based on MABR is related to. MABR, also known as enhanced coupled Biofilm Reactor (EHBR), is known by the English name of Membrane affected Biofilm Reactor.
Background
At present, an activated sludge process in municipal sewage treatment is improved by utilizing a short-cut nitrification and denitrification process or a multistage anaerobic anoxic and aerobic process, for example, a patent CN102583746B 'multistage anaerobic anoxic and aerobic biological reaction tank' and a patent CN102491604B 'multistage anaerobic anoxic and aerobic activated sludge process' improve the original AAO process, and organic matters in sewage are subjected to high-efficiency decarbonization and dephosphorization in a 'one-carbon dual-purpose' manner, but the relative stages are relatively more, and the occupied area is relatively large; in patent CN109650541B, "a sewage treatment method based on multistage a/O and MABR", an MABR zone is provided, and an MABR membrane is wound on the surface of the water pipeline, which provides a certain fixing and supporting function for the MABR membrane, but in a certain sense, the contact between the MABR membrane and the pollutants in the water body is reduced, and the use effect of the MABR membrane is limited.
Based on this, how to effectively combine the multi-stage AAO process and the MABR process to form a multi-stage AAO and MABR processing apparatus and method is an urgent problem to be solved in the art.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a overcome not enough among the prior art, provide a multistage anaerobism oxygen deficiency aerobic treatment device and method based on MABR, combine together MABR technique and multistage anaerobism oxygen deficiency good oxygen (MAAO) activated sludge process technology effectively, realize the device that the anaerobism oxygen deficiency is good oxygen and exists simultaneously in same reaction unit to regulate and control according to actual water yield quality of water condition, realize sewage treatment's the high-efficient nitrogen and phosphorus removal of strengthening of low energy consumption low mud volume.
The specific technical scheme is as follows:
the utility model provides a multistage anaerobism oxygen deficiency aerobic treatment device based on MABR, including total inlet tube, multistage AAMO biological reaction pond and outlet pipe, wherein multistage AAMO biological reaction pond is including the one-level anaerobic zone that communicates in proper order, one-level AMb anoxic zone, one-level aerobic zone, second grade anaerobic zone, second grade AMb anoxic zone, second grade aerobic zone, tertiary anaerobic zone, tertiary AMb anoxic zone and tertiary aerobic zone, sewage gets into the inlet channel from total inlet tube, allot the water yield through the regulator and get into anaerobic zone in proper order, anoxic zone and aerobic zone, from the outer sedimentation treatment of outlet pipe discharge system after purification treatment.
The primary AMb anoxic zone is a tank body, the front end is provided with an anoxic zone, the rear end is provided with an MABR treatment zone, an MABR membrane component is implanted in the MABR treatment zone, and a secondary AMb anoxic zone and a tertiary AMb anoxic zone are sequentially designed.
Part of the effluent of the first-stage AMb anoxic zone flows back to the water inlet end of the second-stage anaerobic zone through the regulator, and part of the effluent enters the second-stage aerobic zone, and the second-stage AMb anoxic zone and the third-stage AMb anoxic zone are designed in sequence to discharge water.
The effluent of the first-stage aerobic zone flows to the water inlet end of the second-stage AMb anoxic zone, the effluent of the second-stage aerobic zone is sequentially designed, part of the effluent of the third-stage aerobic zone flows back to the first-stage AMb anoxic zone, and most of water is discharged out of the system through the water outlet pipe.
The number of the MABR membrane assemblies is one group or more, and the MABR membrane assemblies are connected through gas pipeline pipe fittings.
A method of a multistage anaerobic anoxic and aerobic treatment device based on MABR comprises the following specific process steps:
(1) each stage of sewage treatment process comprises: water inlet → anaerobic zone → anoxic zone + MABR treatment zone → aerobic zone, wherein the effluent of the three-stage aerobic zone enters a sedimentation tank outside the system from a water outlet pipe;
(2) the returned sludge enters the water inlet end of the primary anaerobic zone and is fully mixed and reacted in the primary anaerobic zone;
(3) the MABR treatment area is divided into two or more areas along the water flow direction, the DO content of each area is regulated through an MABR membrane component, and the MABR treatment area can be set to be in any one or a combination of an anaerobic state, an anoxic state or an aerobic state;
(4) the function of the MABR treatment area is adjusted, and the multistage anaerobic treatment function is perfected and improved.
The utility model discloses a multistage anaerobism oxygen deficiency aerobic treatment device and method based on MABR, implant the MABR treatment space in original anoxic space inside in multistage AAO technology, the setting is rear portion in traditional anoxic space, utilize the adjustability of MABR treatment space and the good oxygen/oxygen deficiency/anaerobism structure of MABR membrane silk surface microbial film, combine together MABR technique and multistage anaerobism oxygen deficiency good oxygen (MAAO) activated sludge process technology, realize the device and the processing method that the anaerobism oxygen deficiency is good oxygen to exist simultaneously in same reaction unit. The utility model discloses degradation load efficiency is high, the flexibility is strong, easy operation, running cost are low, the maintenance of being convenient for, can realize sewage treatment's high-efficient nitrogen and phosphorus removal of reinforceing of low energy consumption low mud volume.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
Fig. 2 is a schematic plane structure diagram of the present invention.
In the figure: 1. total inlet tube, 2, the regulator, 3, one-level anaerobic zone, 4, the inlet channel, 5, one-level anoxic mixed liquor reflux groove, 6, second grade anoxic mixed liquor reflux groove, 7, tertiary anaerobic zone, 8, tertiary aerobic zone, 9, the backward flow mud entry, 10, one-level AMb anoxic zone, 11, one-level aerobic zone, 12, second grade anaerobic zone, 13, tertiary aerobic mixed liquor reflux groove, 14, second grade AMb anoxic zone, 15, second grade aerobic zone, 16, tertiary AMb anoxic zone, 17, the outlet pipe.
Detailed Description
The multi-stage anaerobic/anoxic/aerobic treatment device based on MABR of the present invention is further described with reference to FIGS. 1 to 2:
the utility model provides a multistage anaerobism oxygen deficiency aerobic treatment device based on MABR, including total inlet tube 1, multistage AAMO biological reaction pond and outlet pipe 17, wherein multistage AAMO biological reaction pond is including the one-level anaerobic zone 3 that communicates in proper order, one-level AMb anoxic zone 10, one-level aerobic zone 11, second grade anaerobic zone 12, second grade AMb anoxic zone 14, second grade aerobic zone 15, tertiary anaerobic zone 7, tertiary AMb anoxic zone 16 and tertiary aerobic zone 8, sewage gets into inlet channel 4 from total inlet tube 1, allocate the water yield through regulator 2 and get into anaerobic zone in proper order, anoxic zone and aerobic zone, through the precipitation treatment outside outlet pipe 17 discharge system after purification treatment.
The flow q of a main water inlet pipe 1 is divided by a water inlet channel 4, the water inlet flow q1 of a primary anaerobic zone 3, the water inlet flow q2 of a secondary anaerobic zone 12 and the water inlet flow q3 of a tertiary anaerobic zone 7 are in a relation q = q1+ q2+ q3, and q1 is not less than q2 and not less than q 3.
The first-stage AMb anoxic zone 10 is a tank body, the front end is provided with an anoxic zone, the rear end is provided with an MABR treatment zone, an MABR membrane component is implanted in the MABR treatment zone, and a second-stage AMb anoxic zone 14 and a third-stage AMb anoxic zone 16 are sequentially designed.
Part of the effluent from the first-stage AMb anoxic zone 10 flows back to the water inlet end of the second-stage anaerobic zone 12 through the regulator 2, and part of the effluent enters the second-stage aerobic zone 15, and the effluent from the second-stage AMb anoxic zone 14 and the third-stage AMb anoxic zone 16 are designed in sequence.
The water flowing out of the first-level aerobic zone 11 flows to the water inlet end of the second-level AMb anoxic zone 14, the water flowing out of the second-level aerobic zone 15 is sequentially designed, part of the water flowing out of the third-level aerobic zone 8 flows back to the first-level AMb anoxic zone 10, and most of the water is discharged out of the system through the water outlet pipe 17.
The number of the MABR membrane assemblies is one group or more, and the MABR membrane assemblies are connected through gas pipeline pipe fittings and are fixed by membrane brackets.
A method of a multistage anaerobic anoxic and aerobic treatment device based on MABR can form different process flows according to different functions of MABR treatment areas. The following is explained by two embodiments, but the function of the MABR processing zone is not limited to these two embodiments.
Example 1: the MABR treatment area is set to be aerobic and anoxic, and the method of the multistage anaerobic anoxic aerobic treatment device based on the MABR comprises the following specific processes:
(1) each stage of sewage treatment process comprises: water inlet → anaerobic zone → anoxic zone + MABR treatment zone → aerobic zone, water outlet of the third-stage aerobic zone 8 enters the sedimentation tank from a water outlet pipe 17;
(2) the returned sludge enters the water inlet end of the primary anaerobic zone 3 and is fully mixed and reacted in the primary anaerobic zone 3;
(3) the MABR treatment zone in the first stage AMb anoxic zone 10 is divided into two sections, in the direction of water flow: the aerobic treatment zone and the anoxic treatment zone of the MABR are respectively provided with DO content difference by adjusting DO content through the MABR membrane component, the microbial membrane structure on the surface of the membrane wire of the MABR membrane component is aerobic/anoxic/anaerobic or aerobic/anoxic from inside to outside, the synchronous nitrification and denitrification process is realized in the MABR treatment zone, and the MABR treatment zones of the second-level AMb anoxic zone 14 and the third-level AMb anoxic zone 16 are sequentially designed;
(4) adjusting an air inlet pipe to enable the whole MABR treatment area to be an anoxic area, and enabling the whole process to form a multi-stage anaerobic and anoxic process;
(5) part of the effluent of the MABR treatment zone in the first-stage AMb anoxic zone 10 flows back to the water inlet end of the second-stage anaerobic zone 12 from the first-stage anoxic mixed liquor reflux tank 5, and part of the effluent enters the second-stage aerobic zone 15, and the effluent of the second-stage AMb anoxic zone 14 and the effluent of the third-stage AMb anoxic zone 16 are sequentially designed;
(6) part of nitrified liquid discharged from the third aerobic mixed liquid reflux tank 13 flows back to the water inlet end of the anoxic zone 10 of the first-level AMb, and the rest part of nitrified liquid is discharged out of the system and enters a sedimentation tank.
Example 2: the difference from the embodiment 1 is the function of the MABR processing area, which is specifically as follows:
the MABR treatment zone is set as a low aerobic zone and is divided into three zones along the water flow direction: an MABR low aerobic treatment zone, an MABR anoxic treatment zone and an MABR low aerobic treatment zone;
by adjusting the function of the MABR treatment area, a more efficient and complete multistage anaerobic process is formed.
In the above examples, the MABR treatment zone and the aerobic zone were subjected to low oxygen aeration, and DO level was controlled to be generally 0.1-1.0 mg/L.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. The utility model provides a multistage anaerobism oxygen deficiency aerobic treatment device based on MABR, includes total inlet tube (1), multistage AAMO biological reaction pond and outlet pipe (17), its characterized in that: multistage AAMO biological reaction pond is including one-level anaerobic zone (3) that communicate in proper order, one-level AMb anoxic zone (10), one-level aerobic zone (11), second grade anaerobic zone (12), second grade AMb anoxic zone (14), second grade aerobic zone (15), tertiary anaerobic zone (7), tertiary AMb anoxic zone (16) and tertiary aerobic zone (8), sewage gets into inlet channel (4) from total inlet tube (1), allot the water yield through regulator (2) and get into anaerobic zone in proper order, anoxic zone and aerobic zone, from outlet pipe (17) discharge system outward precipitation behind the purification treatment.
2. The MABR-based multi-stage anaerobic anoxic aerobic treatment apparatus according to claim 1, wherein: the primary AMb anoxic zone (10) is a tank body, the front end is provided with an anoxic zone, the rear end is provided with an MABR treatment zone, an MABR membrane component is implanted in the MABR treatment zone, part of effluent of the primary AMb anoxic zone (10) flows back to the water inlet end of the secondary anaerobic zone (12) through a regulator (2), and part of effluent enters the secondary aerobic zone (15), and the secondary AMb anoxic zone (14) and the tertiary AMb anoxic zone (16) are sequentially designed.
3. The MABR-based multi-stage anaerobic anoxic aerobic treatment apparatus according to claim 1, wherein: the water outlet of the first-level aerobic zone (11) flows to the water inlet end of the second-level AMb anoxic zone (14), the water outlet of the second-level aerobic zone (15) is sequentially designed, part of the water outlet of the third-level aerobic zone (8) flows back to the first-level AMb anoxic zone (10), and most of water is discharged out of the system through the water outlet pipe (17).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249426A (en) * | 2021-12-29 | 2022-03-29 | 哈尔滨工业大学 | Sewage treatment system and method based on two-stage MABR and activated sludge process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114249426A (en) * | 2021-12-29 | 2022-03-29 | 哈尔滨工业大学 | Sewage treatment system and method based on two-stage MABR and activated sludge process |
| CN114249426B (en) * | 2021-12-29 | 2024-02-09 | 哈尔滨工业大学 | Sewage treatment system and method based on two-stage MABR and activated sludge process |
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