CN216191762U - Strengthen removing phosphorus type integration sewage treatment device - Google Patents
Strengthen removing phosphorus type integration sewage treatment device Download PDFInfo
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- CN216191762U CN216191762U CN202122524853.3U CN202122524853U CN216191762U CN 216191762 U CN216191762 U CN 216191762U CN 202122524853 U CN202122524853 U CN 202122524853U CN 216191762 U CN216191762 U CN 216191762U
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Abstract
The utility model discloses enhanced phosphorus removal type integrated domestic sewage treatment equipment which comprises an anaerobic tank, an aerobic tank, a biological selection tank, an MBR membrane tank, a phosphorus removal device and a clean water tank, wherein the anaerobic tank is connected with the aerobic tank through a pipeline; the sewage inlet pipe is installed to the anaerobism pond, the perforation water distributor, anaerobism biofilm carrier, the dive mixer, good oxygen aeration equipment is installed to good oxygen pond, good oxygen biofilm carrier, the fat isolator has been installed to the pond in the biological selection pond, install the MBR membrane system in the pond in MBR membrane cisterna, phosphorus removal device includes the pipe-line mixer, ultrafiltration filter, MBR membrane system assembles the self priming pump, the self priming pump drive loops through the pipe-line mixer by MBR membrane system exhaust clear water, ultrafiltration filter. Through the structural design, the device has the advantages of novel structural design and good purification treatment effect, can be effectively suitable for treating domestic sewage mixed with high-phosphorus-content wastewater, and has good removal efficiency and effect on total phosphorus.
Description
Technical Field
The utility model relates to the technical field of sewage purification treatment equipment, in particular to enhanced phosphorus removal type integrated domestic sewage treatment equipment.
Background
The total phosphorus is a main index for reflecting water eutrophication, and the municipal sewage plant is used as an important link for treating urban life and industrial sewage and plays a vital role in improving the water environment of the whole city, the village and the town and the rural area in the removal effect of the total phosphorus.
In recent years, because China pays high attention to the treatment work of domestic sewage in villages and towns and rural areas, the integrated domestic sewage treatment equipment is widely applied due to the characteristics of short manufacturing time, convenient transportation, simple and flexible installation, short construction period and the like, and is particularly popular in the field of treatment of domestic sewage in small towns and rural areas. However, rural domestic sewage in many places is mixed with non-domestic sewage with high phosphorus content, so that the concentration of total phosphorus in inlet water is increased, and the phenomenon that the total phosphorus does not reach the standard can occur when the total phosphorus in inlet water is higher.
The basic principle of biological dephosphorization in sewage treatment, dephosphorization process generally includes that the aerobic section absorbs phosphorus, a circulation process of anaerobism section release phosphorus, and phosphorus is got rid of through the mode that the aerobic section absorbed phosphorus microorganism, and is specific:
1. an aerobic section: the total phosphorus in the sewage is absorbed by aerobic microorganisms in the biological treatment process and is synthesized into the body of the sewage;
2. an anaerobic section: the process of microbial release and microbial absorption of the excess phosphorus from the aerobic section to the anaerobic section;
wherein, the basic principle of chemical phosphorus removal is as follows:
1. aluminum salt phosphorus removal chemical reaction equation: al (Al)3++HnPO（3-n）4=AlPO4↓+nH+；
2. Chemical reaction method for removing phosphorus from iron saltA program: main reaction of Fe3++PO3 -4=FePO4↓ Fe2++PO3 -4=Fe3（PO4）2↓; side reaction of Fe3++3HCO-3=Fe（OH）3↓+3CO。
Most of integrated domestic sewage treatment equipment can basically meet the requirements in treating low-concentration phosphorus-containing domestic sewage at the present stage, but when high-phosphorus-containing non-domestic sewage is mixed into inlet water, the requirement cannot be met, and the total phosphorus in outlet water cannot reach the standard.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an enhanced phosphorus removal type integrated domestic sewage treatment device aiming at the defects of the prior art, which has novel structural design and good purification treatment effect, can be effectively suitable for treating domestic sewage mixed with high-phosphorus-content wastewater, and has good removal efficiency and effect on total phosphorus.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
An enhanced phosphorus removal type integrated domestic sewage treatment device comprises an anaerobic tank, an aerobic tank, a biological selection tank, an MBR membrane tank, a phosphorus removal device and a clean water tank which are sequentially arranged;
the anaerobic tank is provided with a sewage inlet pipe and a perforated water distribution pipe positioned at the bottom of the anaerobic tank, the sewage inlet pipe is connected with the perforated water distribution pipe, and the anaerobic biological filler and a submersible mixer are arranged in the anaerobic tank;
the aerobic tank is provided with an aerobic aeration device for carrying out aeration treatment on sewage in the tank, the aerobic biological filler is arranged in the aerobic tank, and a water outlet of the anaerobic tank is communicated with a water inlet of the aerobic tank;
a grease isolator is arranged in the biological selection tank, and the water inlet of the grease isolator is communicated with the water outlet of the aerobic tank;
an MBR membrane system is arranged in the MBR membrane tank, and a water inlet of the MBR membrane tank is communicated with a water outlet of the biological selection tank;
the dephosphorization device comprises a pipeline mixer and an ultrafiltration filter, wherein a self-priming pump is assembled on the MBR membrane system, the water inlet of the self-priming pump is communicated with the water outlet of the MBR membrane system, the water outlet of the self-priming pump is communicated with the water inlet of the pipeline mixer, the water outlet of the pipeline mixer is communicated with the water inlet of the ultrafiltration filter, and the water outlet of the ultrafiltration filter is communicated with the water inlet of a clean water tank.
The MBR membrane pool is provided with a gas stirring device, the gas stirring device comprises a gas stirring driving fan and a gas stirring pipe positioned in the MBR membrane pool, and an air outlet of the gas stirring driving fan is connected with the gas stirring pipe through an air conveying pipeline.
The ultra-filtration filter is provided with a dephosphorization back-flushing pump, the water inlet of the dephosphorization back-flushing pump is communicated with the clean water tank, the water outlet of the dephosphorization back-flushing pump is connected with the back-flushing interface of the ultra-filtration filter through a water pipeline, and the water pipeline between the water outlet of the dephosphorization back-flushing pump and the back-flushing interface of the ultra-filtration filter is communicated with the air outlet of the air stirring driving fan through an air pipeline.
Wherein, the aerobic aeration device comprises a blower and an aeration pipe positioned at the bottom of the aerobic tank, and an air outlet of the blower is connected with the aeration pipe through an air conveying pipeline.
Wherein a sludge return pipe is connected between the anaerobic tank and the biological selection tank, and the sludge return pipe is provided with a sludge return pump.
The tank of the MBR membrane tank is also internally provided with an MBR membrane backwashing pipe, the MBR membrane backwashing pipe is connected with the clean water tank through an MBR membrane backwashing pipeline, and the MBR membrane backwashing pipeline is provided with an MBR membrane backwashing pump.
Wherein, the water outlet of the clean water tank is connected with a clean water discharge pipe which is provided with a disinfectant adding device.
The disinfectant adding device comprises a disinfectant adding pump, a disinfectant container for containing disinfectant, and a disinfectant adding pipeline for communicating an inner cavity of the disinfectant container with the clear water discharge pipe, wherein the disinfectant adding pump is arranged on the disinfectant adding pipeline.
The utility model has the beneficial effects that: the utility model relates to enhanced phosphorus removal type integrated domestic sewage treatment equipment which comprises an anaerobic tank, an aerobic tank, a biological selection tank, an MBR membrane tank, a phosphorus removal device and a clean water tank, wherein the anaerobic tank is connected with the aerobic tank through a pipeline; the anaerobic tank is provided with a sewage inlet pipe, a perforated water distribution pipe, anaerobic biological fillers and a submersible stirrer; the aerobic tank is provided with an aerobic aeration device and an aerobic biological filler, and the water outlet of the anaerobic tank is communicated with the water inlet of the aerobic tank; a grease isolator is arranged in the biological selection tank, and the water inlet of the grease isolator is communicated with the water outlet of the aerobic tank; an MBR membrane system is arranged in the MBR membrane tank, and a water inlet of the MBR membrane tank is communicated with a water outlet of the biological selection tank; the phosphorus removal device comprises a pipeline mixer and an ultrafiltration filter, wherein a self-priming pump is assembled on the MBR membrane system, the water inlet of the self-priming pump is communicated with the water outlet of the MBR membrane system, the water outlet of the self-priming pump is communicated with the water inlet of the pipeline mixer, the water outlet of the pipeline mixer is communicated with the water inlet of the ultrafiltration filter, and the water outlet of the ultrafiltration filter is communicated with the water inlet of a clean water tank. Through the structural design, the device has the advantages of novel structural design and good purification treatment effect, can be effectively suitable for treating domestic sewage mixed with high-phosphorus-content wastewater, and has good removal efficiency and effect on total phosphorus.
Drawings
The utility model will be further described with reference to the drawings to which, however, the embodiments shown in the drawings do not constitute any limitation.
FIG. 1 is a flow chart of the present invention.
In fig. 1, included are:
1-anaerobic tank 11-sewage inlet pipe
12-perforated water distributor 13-anaerobic biological filler
14-submersible mixer 2-aerobic tank
21-aerobic biological stuffing 22-blower
23-aeration pipe 3-biological selection tank
31-grease isolator 4-MBR membrane tank
41-MBR membrane system 42-self-priming pump
43-air stirring driving fan 44-MBR membrane backwashing pump
5-dephosphorization apparatus 51-pipeline mixer
52-ultrafiltration filter 53-dephosphorization backwash pump
6-clean water tank 61-clean water discharge pipe
62-disinfectant adding device
71-sludge return pipe 72-sludge return pump.
Detailed Description
The present invention will be described below with reference to specific embodiments.
As shown in figure 1, the enhanced phosphorus removal type integrated domestic sewage treatment equipment comprises an anaerobic tank 1, an aerobic tank 2, a biological selection tank 3, an MBR membrane tank 4, a phosphorus removal device 5 and a clean water tank 6 which are sequentially arranged.
Wherein, the anaerobic tank 1 is provided with a sewage inlet pipe 11 and a perforated water distribution pipe 12 positioned at the bottom of the anaerobic tank 1, the sewage inlet pipe 11 is connected with the perforated water distribution pipe 12, and the tank of the anaerobic tank 1 is internally provided with an anaerobic biological filler 13 and a submersible mixer 14.
Furthermore, the aerobic tank 2 is provided with an aerobic aeration device for carrying out aeration treatment on the sewage in the tank, the aerobic biological filler 21 is arranged in the aerobic tank 2, and the water outlet of the anaerobic tank 1 is communicated with the water inlet of the aerobic tank 2.
Furthermore, a grease isolator 31 is arranged in the biological selection tank 3, and the water inlet of the grease isolator 31 is communicated with the water outlet of the aerobic tank 2.
In addition, an MBR membrane system 41 is arranged in the MBR membrane tank 4, and the water inlet of the MBR membrane tank 4 is communicated with the water outlet of the biological selection tank 3.
And the phosphorus removal device 5 comprises a pipeline mixer 51 and an ultrafiltration filter 52, wherein the MBR membrane system 41 is provided with a self-priming pump 42, the water inlet of the self-priming pump 42 is communicated with the water outlet of the MBR membrane system 41, the water outlet of the self-priming pump 42 is communicated with the water inlet of the pipeline mixer 51, the water outlet of the pipeline mixer 51 is communicated with the water inlet of the ultrafiltration filter 52, and the water outlet of the ultrafiltration filter 52 is communicated with the water inlet of the clean water tank 6.
The aerobic aeration device can be specifically designed by adopting the following structure: the aerobic aeration device comprises an air blower 22 and an aeration pipe 23 positioned at the bottom of the aerobic tank 2, and an air outlet of the air blower 22 is connected with the aeration pipe 23 through an air conveying pipeline. Of course, the above structure is not limited to the present invention, i.e., the aerobic aeration apparatus of the present invention can also adopt other structural designs.
In the working process of the utility model, domestic sewage firstly flows into the anaerobic tank 1 through the sewage inlet pipe 11 and the perforated water distribution pipe 12, the perforated water distribution pipe 12 arranged at the bottom of the anaerobic tank 1 distributes water uniformly, in the process, the submersible mixer 14 stirs and mixes sewage, sludge and microorganisms growing on biological fillers in the anaerobic tank 1, so that the sewage generates biological anaerobic reaction in the anaerobic tank 1, the designed retention time of the anaerobic tank 1 is 3-4 hours, and the dissolved oxygen in the anaerobic tank 1 is maintained below 0.1 mg/L.
In the process of carrying out biological aerobic reaction on sewage through the aerobic tank 2, the sewage subjected to the biological anaerobic reaction flows into the aerobic tank 2 through a water outlet of the anaerobic tank 1 and a water inlet of the aerobic tank 2, in the process, under the action of an aerobic aeration device, an air blower 22 sends air into an aeration pipe 23 through an air conveying pipeline, the aeration pipe 23 carries out aeration treatment on the sewage in the aerobic tank 2, so that the sewage, sludge and microorganisms growing on biological fillers are stirred and mixed, the sewage in the aerobic tank 2 is subjected to biological aerobic reaction, and the microorganisms absorb phosphorus in the sewage; wherein, the designed retention time of the aerobic tank 2 is 4-5 hours, and the dissolved oxygen is maintained in the range of 2-4 mg/L.
After the sewage stays in the aerobic tank 2 and biological aerobic reaction is completed, the sewage flows out from a water outlet of the aerobic tank 2 and enters the grease isolator 31, the grease isolator 31 can isolate animal and vegetable oil carried by the sewage, the sewage after isolating the animal and vegetable oil enters the biological selection tank 3 and is settled in the biological selection tank 3, the staying time of the biological selection tank 3 is 0.5-1 hour, in the process, the sewage is subjected to simple solid-liquid separation in the biological selection tank 3, and the sludge is settled at the bottom of the biological selection tank 3.
In the process of microfiltration of sewage by the MBR membrane tank 4, supernatant liquor flowing out of a water outlet of the biological selection tank 3 flows into the MBR membrane tank 4 through a water inlet of the MBR membrane tank 4, the MBR membrane tank 4 is subjected to microfiltration by the MBR membrane system 41, and the sewage subjected to microfiltration by the MBR membrane system 41 is changed into clear water; wherein, the designed retention time of the MBR membrane tank 4 is 1-2 hours, and the dissolved oxygen is maintained in the range of 4-6 mg/L.
Under the driving action of the self-priming pump 42, clean water flowing out of the MBR membrane system 41 sequentially passes through the pipeline mixer 51 and the ultrafiltration filter 52 and flows into the clean water tank 6, in the process, alkali, aluminum salt and iron salt added into the pipeline mixer 51 are subjected to coagulation reaction, then the mixed water enters the ultrafiltration filter 52 for solid-liquid separation, solids are retained in the ultrafiltration filter 52, and the filtered clean water flows into the clean water tank 6. Wherein, the ultrafiltration filter 52 of the present invention adopts micron-sized filter cloth, and the filtering system adopts two-part alternate operation mode.
According to the above situation, the utility model has the advantages of novel structural design and good purification treatment effect through the structural design, can be effectively suitable for treating domestic sewage mixed with high-phosphorus-content wastewater, and has good removal efficiency and effect on total phosphorus.
In a preferred embodiment, as shown in fig. 1, the MBR membrane tank 4 is equipped with a gas stirring device, the gas stirring device comprises a gas stirring driving fan 43 and a gas stirring pipe located in the tank of the MBR membrane tank 4, and an air outlet of the gas stirring driving fan 43 is connected with the gas stirring pipe through an air conveying pipeline.
Further, the ultrafiltration filter 52 is provided with a dephosphorization backwash pump 53, the water inlet of the dephosphorization backwash pump 53 is communicated with the clean water tank 6, the water outlet of the dephosphorization backwash pump 53 is connected with the backwash interface of the ultrafiltration filter 52 through a water pipe, and the water pipe between the water outlet of the dephosphorization backwash pump 53 and the backwash interface of the ultrafiltration filter 52 is communicated with the air outlet of the air stirring driving fan 43 through an air pipe.
In the process of microfiltration of sewage by an MBR (membrane bioreactor) membrane system 41 in the MBR membrane tank 4, starting a gas stirring driving fan 43 in a gas stirring device, introducing air into a gas stirring pipe through an air conveying pipeline by the gas stirring fan, and scouring the surface of an MBR membrane by the gas stirring pipe to prevent the surface of the membrane from scaling; meanwhile, the large aeration quantity can prevent the sludge from accumulating too much and polluting the membrane.
During the backwashing operation of the ultrafiltration filter 52, the air agitation driving fan 43 and the dephosphorization backwashing pump 53 are started, the dephosphorization backwashing pump 53 pumps water from the clean water tank 6 and mixes the air conveyed by the air agitation driving fan 43 to periodically perform air-water backwashing on the filter cloth of the ultrafiltration filter 52, and the backwashing effluent enters the sludge tank.
In a preferred embodiment, as shown in FIG. 1, a sludge return pipe 71 is connected between the anaerobic tank 1 and the biological selection tank 3, and a sludge return pump 72 is provided to the sludge return pipe 71. During the working process of the utility model, the sludge settled at the bottom of the biological selection tank 3 can flow back to the anaerobic tank 1 through the sludge return pipe 71.
As a preferred embodiment, as shown in fig. 1, an MBR membrane backwash pipe is further installed in the tank of the MBR membrane tank 4, the MBR membrane backwash pipe is connected to the clean water tank 6 through an MBR membrane backwash pipe, and the MBR membrane backwash pipe is provided with an MBR membrane backwash pump 44.
When the MBR membrane needs to be backwashed, the MBR membrane backwashing pump 44 is started, and under the driving action of the MBR membrane backwashing pump 44, the clear water in the clear water tank 6 is backwashed for the MBR membrane through the MBR membrane backwashing pipe.
As a preferred embodiment, as shown in fig. 1, a clear water discharge pipe 61 is connected to the water outlet of the clear water tank 6, and the clear water discharge pipe 61 is provided with a disinfectant adding device 62; the disinfectant adding device 62 comprises a disinfectant adding pump, a disinfectant container for containing disinfectant, and a disinfectant adding pipeline for communicating an inner cavity of the disinfectant container with the clear water discharge pipe 61, wherein the disinfectant adding pump is arranged on the disinfectant adding pipeline.
The clear water entering the clear water tank 6 can be directly discharged through the clear water discharge pipe 61, and in the process, the disinfectant adding device 62 adds the disinfectant into the clear water discharge pipe 61 to disinfect the discharged clear water, so that the discharged clear water meets the discharge standard.
In the process of adding the disinfectant into the clean water discharge pipe 61 by the disinfectant adding device 62, the disinfectant adding pump is started, and the disinfectant in the disinfectant container is supplied into the clean water discharge pipe 61 by the disinfectant adding pump through the disinfectant adding pipeline.
The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.
Claims (8)
1. The utility model provides a strengthen phosphorus removal type integration sewage treatment device which characterized in that: comprises an anaerobic tank (1), an aerobic tank (2), a biological selection tank (3), an MBR membrane tank (4), a phosphorus removal device (5) and a clean water tank (6) which are arranged in sequence;
the anaerobic tank (1) is provided with a sewage inlet pipe (11) and a perforated water distribution pipe (12) positioned at the bottom of the anaerobic tank (1), the sewage inlet pipe (11) is connected with the perforated water distribution pipe (12), and an anaerobic biological filler (13) and a submersible stirrer (14) are arranged in the anaerobic tank (1);
the aerobic tank (2) is provided with an aerobic aeration device for carrying out aeration treatment on sewage in the tank, the aerobic biological filler (21) is arranged in the aerobic tank (2), and the water outlet of the anaerobic tank (1) is communicated with the water inlet of the aerobic tank (2);
a grease isolator (31) is arranged in the biological selection tank (3), and the water inlet of the grease isolator (31) is communicated with the water outlet of the aerobic tank (2);
an MBR membrane system (41) is arranged in the MBR membrane tank (4), and the water inlet of the MBR membrane tank (4) is communicated with the water outlet of the biological selection tank (3);
dephosphorization device (5) is including pipeline mixer (51), ultrafiltration filter (52), MBR membrane system (41) is furnished with self priming pump (42), the water inlet of self priming pump (42) and the delivery port intercommunication of MBR membrane system (41), the delivery port of self priming pump (42) and the water inlet intercommunication of pipeline mixer (51), the delivery port of pipeline mixer (51) and the water inlet intercommunication of ultrafiltration filter (52), the delivery port of ultrafiltration filter (52) and the water inlet intercommunication of clean water basin (6).
2. The reinforced phosphorus removal type integrated domestic sewage treatment equipment according to claim 1, wherein: the MBR membrane tank (4) is provided with a gas stirring device, the gas stirring device comprises a gas stirring driving fan (43) and a gas stirring pipe positioned in the tank of the MBR membrane tank (4), and the air outlet of the gas stirring driving fan (43) is connected with the gas stirring pipe through an air conveying pipeline.
3. The reinforced phosphorus removal type integrated domestic sewage treatment equipment as claimed in claim 2, wherein: the ultra-filtration filter (52) is provided with a dephosphorization backwashing pump (53), the water inlet of the dephosphorization backwashing pump (53) is communicated with the clean water tank (6), the water outlet of the dephosphorization backwashing pump (53) is connected with the backwashing interface of the ultra-filtration filter (52) through a water pipeline, and the water pipeline between the water outlet of the dephosphorization backwashing pump (53) and the backwashing interface of the ultra-filtration filter (52) is communicated with the air outlet of the air stirring driving fan (43) through an air pipeline.
4. The reinforced phosphorus removal type integrated domestic sewage treatment equipment according to claim 1, wherein: the aerobic aeration device comprises an air blower (22) and an aeration pipe (23) positioned at the bottom of the aerobic tank (2), and an air outlet of the air blower (22) is connected with the aeration pipe (23) through an air conveying pipeline.
5. The reinforced phosphorus removal type integrated domestic sewage treatment equipment according to claim 1, wherein: a sludge return pipe (71) is connected between the anaerobic tank (1) and the biological selection tank (3), and a sludge return pump (72) is arranged on the sludge return pipe (71).
6. The reinforced phosphorus removal type integrated domestic sewage treatment equipment according to claim 1, wherein: an MBR membrane backwashing pipe is further arranged in the MBR membrane tank (4), the MBR membrane backwashing pipe is connected with the clean water tank (6) through an MBR membrane backwashing pipeline, and an MBR membrane backwashing pump (44) is arranged on the MBR membrane backwashing pipeline.
7. The reinforced phosphorus removal type integrated domestic sewage treatment equipment according to claim 1, wherein: the water outlet of the clean water tank (6) is connected with a clean water discharge pipe (61), and the clean water discharge pipe (61) is provided with a disinfectant adding device (62).
8. The reinforced phosphorus removal type integrated domestic sewage treatment equipment according to claim 7, wherein: the disinfectant adding device (62) comprises a disinfectant adding pump, a disinfectant container for containing disinfectant, and a disinfectant adding pipeline for communicating the inner cavity of the disinfectant container with the clear water discharge pipe (61), wherein the disinfectant adding pump is arranged on the disinfectant adding pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122524853.3U CN216191762U (en) | 2021-10-20 | 2021-10-20 | Strengthen removing phosphorus type integration sewage treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122524853.3U CN216191762U (en) | 2021-10-20 | 2021-10-20 | Strengthen removing phosphorus type integration sewage treatment device |
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| Publication Number | Publication Date |
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| CN216191762U true CN216191762U (en) | 2022-04-05 |
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| CN202122524853.3U Active CN216191762U (en) | 2021-10-20 | 2021-10-20 | Strengthen removing phosphorus type integration sewage treatment device |
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2021
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