CN113060892A - Sewage treatment equipment combining suspended biological membrane with deep filtration - Google Patents
Sewage treatment equipment combining suspended biological membrane with deep filtration Download PDFInfo
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- CN113060892A CN113060892A CN202010001148.2A CN202010001148A CN113060892A CN 113060892 A CN113060892 A CN 113060892A CN 202010001148 A CN202010001148 A CN 202010001148A CN 113060892 A CN113060892 A CN 113060892A
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- sewage treatment
- anoxic
- biological membrane
- suspended
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- 239000010865 sewage Substances 0.000 title claims abstract description 36
- 238000001914 filtration Methods 0.000 title claims abstract description 25
- 239000012528 membrane Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000010802 sludge Substances 0.000 claims abstract description 38
- 238000005273 aeration Methods 0.000 claims abstract description 25
- 238000004062 sedimentation Methods 0.000 claims abstract description 23
- 239000004744 fabric Substances 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 16
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 12
- 238000010992 reflux Methods 0.000 claims description 24
- 239000007788 liquid Substances 0.000 claims description 16
- 238000011118 depth filtration Methods 0.000 claims description 12
- 230000001546 nitrifying effect Effects 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 2
- 238000005374 membrane filtration Methods 0.000 claims 5
- 230000003197 catalytic effect Effects 0.000 claims 3
- 239000000725 suspension Substances 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
- 230000002503 metabolic effect Effects 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
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000009287 sand filtration Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/04—Flow arrangements
- C02F2301/046—Recirculation with an external loop
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physical Water Treatments (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a sewage treatment device combining a suspended biological membrane with deep filtration, which comprises an inclined tube sedimentation zone, a pre-anoxic zone, an anaerobic zone, an anoxic zone, a contact oxidation zone, a vertical flow type sedimentation zone, a filter cloth filtration zone, a clear water zone, an ultraviolet disinfection zone and a device room, wherein water enters from a main water inlet and passes through the inclined tube sedimentation zone, the anoxic zone, the contact oxidation zone, the vertical flow type sedimentation zone, the filter cloth filtration zone, the clear water zone and the ultraviolet disinfection zone to be discharged, and the contact oxidation zone comprises suspended fillers, a microporous aeration system and a dark aeration main pipe connected with the microporous aeration system. The sewage treatment equipment combining the suspended biological membrane with the deep filtration reduces the generation amount of sludge in the contact oxidation area and reduces the load of the biological membrane; the micropore aeration system increases dissolved oxygen, and simultaneously takes away carbon dioxide and other harmful gases in water, prevents that gas from jacking up the biomembrane because of buoyancy, and then makes the biomembrane be difficult to drop.
Description
Technical Field
The invention relates to the technical field of domestic sewage treatment, in particular to sewage treatment equipment combining a suspended biological membrane with deep filtration.
Background
In view of the dispersed living in rural areas, although centralized regulation exists, the cost of the pipe network is high, and the laying of the pipe network is determined by actual conditions and cannot reach 100 percent of all-directional coverage; at present, septic tanks (sewage tanks) are built in the rural sewage treatment part, but only the septic tanks (sewage tanks) are used for treatment, and the quality of effluent cannot reach the standard and is discharged.
Current sewage treatment facility all is equipped with the contact oxidation pond, forms the biomembrane through microorganism growth media, realizes the oxidation of sewage, but current contact oxidation pond, can produce a lot of mud in it, leads to the biomembrane easily to drop.
Disclosure of Invention
The invention aims to provide sewage treatment equipment combining a suspended biological membrane with deep filtration, and aims to solve the problem that the biological membrane of the existing sewage treatment equipment is easy to fall off.
The invention provides a sewage treatment device combining a suspended biological membrane with deep filtration, which comprises an inclined tube sedimentation zone, a pre-anoxic zone, an anaerobic zone, an anoxic zone, a contact oxidation zone, a vertical flow type sedimentation zone, a filter cloth filtration zone, a clear water zone, an ultraviolet disinfection zone and a device room, wherein water enters from a main water inlet and passes through the inclined tube sedimentation zone, the anoxic zone, the contact oxidation zone, the vertical flow type sedimentation zone, the filter cloth filtration zone, the clear water zone and the ultraviolet disinfection zone to be discharged, and the contact oxidation zone comprises suspended fillers, a microporous aeration system and a dark aeration main pipe connected with the microporous aeration system.
According to the sewage treatment equipment combining the suspended biological membrane with the deep filtration, microorganisms in a contact oxidation zone are attached to the suspended filler, the effluent of an anoxic zone flows through the suspended filler at a certain flow rate and contacts with the biological membrane, COD (chemical oxygen demand) in the sewage is removed under an aerobic condition, ammonia nitrogen is converted into nitrate nitrogen and nitrite nitrogen, the generation amount of sludge can be reduced, and the load of the biological membrane is reduced; the concealed aeration main pipe is arranged on one side of the top grid cover plate and is connected with the bottom micropore aeration system; the micropore aeration system increases dissolved oxygen, and simultaneously takes away carbon dioxide and other harmful gases in water, prevents that gas from jacking up the biomembrane because of buoyancy, and then makes the biomembrane be difficult to drop.
Furthermore, the inclined tube settling zone comprises a water inlet distribution system, an inclined tube filler arranged on one side of the water inlet distribution system, a sludge discharge system arranged on the lower side of the inclined tube filler, a water outlet system arranged on the upper side of the inclined tube settling zone and a first emptying pipe.
Further, the anoxic zone comprises a first nitrifying liquid reflux system, a first sludge reflux system and a second emptying pipe arranged on the upper side of the anoxic zone.
Furthermore, the vertical flow type settling zone comprises a water inlet system connected with the contact oxidation zone, a sludge storage hopper arranged on the lower side of the vertical flow type settling zone, a central water inlet pipe arranged in the middle of the vertical flow type settling zone, a vent pipe arranged on the upper side of the vertical flow type settling zone, a second nitrification liquid reflux system, a second sludge reflux system and a water outlet system.
Further, the filter cloth filtering area comprises filter cloth and a back washing system.
Further, the sterilization zone includes an ultraviolet sterilizer.
Further, the concealed aeration main pipe is connected with the micropore aeration system through an electric valve.
Furthermore, the pre-anoxic zone is simultaneously connected with the first nitrifying liquid reflux system and the first sludge reflux system, and a pre-anoxic blow-down pipe is arranged at the upper end of the pre-anoxic zone.
Further, the anaerobic zone comprises a suspended spherical filler and an anaerobic emptying pipe, and the anaerobic zone is connected with the first sludge backflow system.
Drawings
FIG. 1 is a schematic structural diagram of a sewage treatment apparatus combining a suspended biological membrane with a depth filtration in a first embodiment of the present invention from the top view;
FIG. 2 is a schematic front view of a clear water zone in the sewage treatment apparatus combining the suspended biological membrane with the depth filtration in FIG. 1.
Description of the main element symbols:
the following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, the sewage treatment equipment combining a suspended biological membrane and a depth filtration provided by the embodiment of the invention comprises an inclined tube sedimentation zone 1, a pre-anoxic zone 21, an anaerobic zone 22, an anoxic zone 2, a contact oxidation zone 3, a vertical flow type sedimentation zone 4, a filter cloth filtration zone 5, a clear water zone 6, an ultraviolet disinfection zone 7 and an equipment room 8, wherein water enters from a total water inlet 903 and then flows out after passing through the inclined tube sedimentation zone 1, the anoxic zone 2, the contact oxidation zone 3, the vertical flow type sedimentation zone 4, the filter cloth filtration zone 5, the clear water zone 6 and the ultraviolet disinfection zone 7, and the contact oxidation zone 3 comprises a suspended filler 301, a micro-pore aeration system 303 and a dark aeration main pipe (not shown) connected with the micro-pore aeration system 303.
Specifically, in this embodiment, the concealed aeration main pipe is connected to the micro-pore aeration system 303 through an electric valve 302, and is used for controlling the micro-pore aeration system 303 to automatically operate, so as to reduce the personnel operation and improve the automation degree.
According to the sewage treatment equipment combining the suspended biofilm with the deep filtration, microorganisms in the contact oxidation zone 3 are attached to the suspended filler 301 to form the biofilm, the effluent of the anoxic zone 2 flows through the suspended filler 301 at a certain flow rate and contacts with the biofilm, COD (chemical oxygen demand) in the sewage is removed under an aerobic condition, ammonia nitrogen is converted into nitrate nitrogen and nitrite nitrogen, the generation amount of sludge can be reduced, and the load of the biofilm is reduced; the concealed aeration main pipe is arranged on one side of the top grid cover plate and is connected with the bottom micropore aeration system 303; the microporous aeration system 303 increases dissolved oxygen and takes away carbon dioxide and other harmful gases in water, so as to prevent gas from jacking up the biomembrane due to buoyancy, and further prevent the biomembrane from falling off easily.
Specifically, in this embodiment, the inclined tube settling zone 1 includes a water inlet distribution system (not shown), an inclined tube filler 101 disposed on one side of the water inlet distribution system, a sludge discharge system (not shown) disposed on a lower side of the inclined tube filler, a water outlet system disposed on an upper side of the inclined tube settling zone, and a first emptying pipe 9021. The sedimentation zone adopts the inclined tube filler 101, and under the condition that the effective volume of the sedimentation tank is certain, the hydraulic radius is reduced, the sedimentation area is increased, and the removal rate of suspended matters can be improved.
Specifically, in this embodiment, the anoxic zone 2 includes a first nitrifying liquid reflux system (i.e., a terminal pipeline of the nitrifying liquid reflux pump 402), a first sludge reflux system (i.e., a terminal pipeline of the sludge reflux pump 401), and a second emptying pipe 9022 disposed on the upper side of the anoxic zone 2. Wherein, nitrifying liquid, return sludge and the abundant mixture of intaking keep the mud concentration in the anaerobism pond, have sufficient carbon source in the intake simultaneously and can fully carry out the denitrification, get rid of ammonia nitrogen, reduce total nitrogen, in the implementation, can be according to going out water ammonia nitrogen and total nitrogen requirement, adjust nitrifying liquid reflux ratio and mud reflux ratio.
Specifically, in this embodiment, the vertical sedimentation zone 4 includes a water inlet system (not shown in the figure) connected to the contact oxidation zone, a sludge storage hopper (not shown in the figure) disposed at the lower side of the vertical sedimentation zone, a central water inlet pipe 403 disposed at the middle of the vertical sedimentation zone, a vent pipe disposed at the upper side of the vertical sedimentation zone, a second nitrification liquid reflux system (i.e., a front end pipeline of the nitrification liquid reflux pump 402), a second sludge reflux system (i.e., a front end pipeline of the sludge reflux pump 401), and a water outlet system (not shown in the figure). The sewage treated by the contact oxidation zone 3 enters the vertical flow type settling zone 4 through the central water inlet pipe 403, part of non-implanted organic matters, metabolic intermediate products, fallen biological membranes and non-implanted microorganisms are deposited in the sludge hopper under the action of gravity, clear water flows out from an upper overflow weir, part of sludge deposited in the sludge hopper flows back to the anoxic tank 2 through a sludge return pipe on a top grid cover plate by the sludge return pump 401, nitrified liquid flows back to the anoxic tank 2 through a sludge return pipe on the top grid cover plate by the nitrified liquid return pump 402, and residual sludge in the sludge hopper is periodically discharged by an emptying pipe to further separate sludge and water and concentrate the sludge.
Specifically, in this embodiment, the pre-anoxic zone 21 is connected to the first nitrifying liquid reflux system and the first sludge reflux system at the same time, and a pre-anoxic vent pipe (not shown) is disposed at an upper end of the pre-anoxic zone 21 for discharging air. Wherein, nitrifying liquid, return sludge and inflow water in the pre-anoxic zone 21 are fully mixed, the sludge concentration in the pre-anoxic zone 21 is kept, and meanwhile, the inflow water has sufficient carbon source energy, so that denitrification is fully performed under an anoxic condition, ammonia nitrogen is removed, and total nitrogen is reduced.
Specifically, in this embodiment, the anaerobic zone 22 includes suspended spherical packing 221 and an anaerobic vent (not shown) for discharging air, and the anaerobic zone 22 is connected to the first sludge recirculation system to increase the sludge concentration in the anaerobic zone 22, improve the phosphorus treatment effect of the anaerobic zone 22, and reduce the phosphorus discharge.
Specifically, in this embodiment, the filter cloth filtering zone 5 comprises a filter cloth 501 and a backwashing system (not shown). The effluent of the vertical flow type settling zone 4 passes through the filter cloth filtering zone 5, suspended matters are adsorbed outside the filter cloth 501 through the filter cloth 501, the concentration of the suspended matters can be effectively reduced, the filtering period is long, the cleaning interval is long, the cleaning duration is short, the cleaning of the filter cloth 201 can be carried out in batches, the cleaning efficiency is high, and the hydraulic power and sludge load of the filter cloth filtering zone 5 are far greater than that of conventional sand filtration.
Specifically, in this embodiment, the clean water area 6 temporarily stores the water amount for backwashing the filter cloth 501 of the filter cloth filtering area 5, and the effluent of the filter cloth filtering area 5 automatically flows into the clean water area
In particular, in this embodiment, the sterilization zone 7 comprises an ultraviolet sterilizer 701. The effluent in the clear water area 6 automatically flows into the ultraviolet sterilizer 701 for sterilization treatment, and reaches the requirements of the effluent on feces and large intestine and bacteria, and then is discharged through the total water outlet of the equipment after reaching the standard.
Specifically, in this embodiment, the device peripheral 9 is further included to surround the outside of the entire device, and plays a role in fixing and isolating.
The invention can lead rural domestic sewage treatment, urban and rural integrated domestic sewage treatment, urban and rural domestic sewage treatment and medical wastewater treatment to have wide application range, and the sewage treated by the equipment can reach the first-class A standard of pollutant discharge Standard of urban sewage treatment plant (GB 18918-; the equipment is convenient to install and can be used for underground type, overground type or semi-underground type; the movable door of the equipment room is flexible, can be placed on the side wall and also can be placed on the top plate, and is convenient to install; low energy consumption and low operation cost, and can enlarge the application range.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The utility model provides a sewage treatment device that suspension biomembrane and depth filtration ally oneself with usefulness, its characterized in that includes pipe chute sedimentation zone, pre-anoxic zone, anaerobic zone, anoxic zone, catalytic oxidation district, vertical flow formula sedimentation zone, filter cloth filtering area, clear water district, ultraviolet disinfection district and equipment room, and water gets into from total water inlet and goes out water behind pipe chute sedimentation zone, anoxic zone, catalytic oxidation district, vertical flow formula sedimentation zone, filter cloth filtering area, clear water district and ultraviolet disinfection district, the catalytic oxidation district include floated filler, micropore aeration system and with the dark aeration that micropore is responsible for the piping system connection.
2. The suspended biological membrane and depth filtration combined sewage treatment equipment according to claim 1, wherein the inclined tube settling zone comprises a water inlet distribution system, an inclined tube filler arranged on one side of the water inlet distribution system, a sludge discharge system arranged on the lower side of the inclined tube filler, a water outlet system arranged on the upper side of the inclined tube settling zone and a first emptying pipe.
3. The suspended biological membrane and depth filtration combined sewage treatment equipment according to claim 1, wherein the anoxic zone comprises a first nitrifying liquid reflux system, a first sludge reflux system and a second emptying pipe arranged on the upper side of the anoxic zone.
4. The suspended biological membrane and depth filtration combined sewage treatment equipment as claimed in claim 1, wherein the vertical flow type settling zone comprises a water inlet system connected with the contact oxidation zone, a sludge storage hopper arranged at the lower side of the vertical flow type settling zone, a central water inlet pipe arranged at the middle part of the vertical flow type settling zone, a vent pipe arranged at the upper side of the vertical flow type settling zone, a second nitrification liquid reflux system, a second sludge reflux system and a water outlet system.
5. The suspended biofilm and depth filtration combined sewage treatment plant of claim 1, wherein said filter cloth filtration zone comprises a filter cloth and a backwash system.
6. The suspended biofilm and depth filtration combined sewage treatment plant of claim 1, wherein said disinfection zone comprises an ultraviolet disinfector.
7. The sewage treatment plant with suspended biological membrane and depth filtration combined as claimed in claim 1, wherein the concealed aeration main pipe is connected with the micro-porous aeration system through an electric valve.
8. The suspended biological membrane and depth filtration combined sewage treatment equipment according to claim 3, wherein the pre-anoxic zone is simultaneously connected with the first nitrification liquid reflux system and the first sludge reflux system, and a pre-anoxic blow-down pipe is arranged at the upper end of the pre-anoxic zone.
9. The suspended biofilm and depth filtration combined sewage treatment plant of claim 4, wherein said anaerobic zone comprises suspended spherical packing and an anaerobic vent, said anaerobic zone being connected to said first sludge recirculation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001148.2A CN113060892A (en) | 2020-01-02 | 2020-01-02 | Sewage treatment equipment combining suspended biological membrane with deep filtration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010001148.2A CN113060892A (en) | 2020-01-02 | 2020-01-02 | Sewage treatment equipment combining suspended biological membrane with deep filtration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113060892A true CN113060892A (en) | 2021-07-02 |
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ID=76558136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010001148.2A Pending CN113060892A (en) | 2020-01-02 | 2020-01-02 | Sewage treatment equipment combining suspended biological membrane with deep filtration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113060892A (en) |
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2020
- 2020-01-02 CN CN202010001148.2A patent/CN113060892A/en active Pending
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Application publication date: 20210702 |