CN115321673A - Sludge-membrane symbiotic sewage treatment process technology - Google Patents
Sludge-membrane symbiotic sewage treatment process technology Download PDFInfo
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- CN115321673A CN115321673A CN202211250358.0A CN202211250358A CN115321673A CN 115321673 A CN115321673 A CN 115321673A CN 202211250358 A CN202211250358 A CN 202211250358A CN 115321673 A CN115321673 A CN 115321673A
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- sewage treatment
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000010865 sewage Substances 0.000 title claims abstract description 32
- 239000012528 membrane Substances 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title claims abstract description 17
- 238000005273 aeration Methods 0.000 claims abstract description 18
- 238000004062 sedimentation Methods 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims description 31
- 239000010802 sludge Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 244000005700 microbiome Species 0.000 claims description 15
- 239000011941 photocatalyst Substances 0.000 claims description 7
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 6
- 239000011707 mineral Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002068 microbial inoculum Substances 0.000 claims description 3
- WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 claims description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052980 cadmium sulfide Inorganic materials 0.000 claims description 2
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 2
- 229910001887 tin oxide Inorganic materials 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 239000011787 zinc oxide Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 238000005842 biochemical reaction Methods 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 241000223782 Ciliophora Species 0.000 description 1
- 241000305492 Gastrodia Species 0.000 description 1
- 241000244206 Nematoda Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241000700141 Rotifera Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000000725 suspension Substances 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
-
- 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
- C02F3/02—Aerobic processes
- C02F3/10—Packings; Fillings; Grids
- C02F3/105—Characterized by the chemical composition
- C02F3/106—Carbonaceous materials
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a sludge-membrane symbiotic sewage treatment process technology, relates to the technical field of sewage treatment, and aims at the problem that the treatment effect of the existing biological membrane on difficultly-degradable pollutants is limited, the following scheme is provided, wherein the A2O process comprises an inlet tank, an anaerobic tank, an anoxic tank, an aeration tank, a sedimentation tank and an outlet tank, and the inlet tank, the anaerobic tank, the anoxic tank, the aeration tank, the sedimentation tank and the outlet tank are sequentially arranged.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sludge-membrane symbiotic sewage treatment process technology.
Background
The sludge-film symbiotic sewage treating technology is a new combined boxing process of active sludge process and biomembrane process.
The Chinese patent with publication number CN101973681B discloses a sewage treatment process by a sequencing batch sludge-membrane symbiosis method: anaerobic microorganism carriers are added into the closed anaerobic adjusting tank, the sewage is stirred by gas generated in the anaerobic treatment process in an anaerobic way, and the anaerobic adjusting tank operates intermittently for 24 hours. Pumping the sewage subjected to anaerobic treatment to the bottom of a primary aerobic sludge film pool by a pump for distribution, performing primary aerobic sludge film treatment, stirring, aerating, automatically flowing the supernatant subjected to precipitation into the bottom of a secondary aerobic sludge film pool in a top water outlet mode for distribution, performing secondary aerobic sludge film treatment, and intermittently operating for 24 hours, wherein the primary aerobic sludge film pool is in a high sludge concentration state; the secondary aerobic sludge film tank is in a low sludge concentration state.
Although the sludge and the membrane are simultaneously arranged in the sludge-membrane symbiotic sewage treatment process, the biological quantity and the population diversity are improved, so that the sewage treatment efficiency is greatly improved, the biological membrane is not matched with biological fillers, so that the specific surface area of the biological membrane is smaller, the treatment effect on difficultly-degradable pollutants is limited, the higher standard of sewage discharge cannot be met, the water body is easily polluted, and the sludge-membrane symbiotic sewage treatment process technology is required at present.
Disclosure of Invention
The invention provides a sludge-membrane symbiotic sewage treatment process technology, which solves the problem that the existing biological membrane has limited treatment effect on pollutants difficult to degrade.
In order to achieve the purpose, the invention adopts the following technical scheme:
a sludge-biofilm symbiotic sewage treatment process technology comprises an A2O process, wherein the A2O process comprises a water inlet tank, an anaerobic tank, an anoxic tank, an aeration tank, a sedimentation tank and a water outlet tank, and the water inlet tank, the anaerobic tank, the anoxic tank, the aeration tank, the sedimentation tank and the water outlet tank are sequentially arranged, and the sludge-biofilm symbiotic sewage treatment process technology is characterized in that a biological carrier is added into the aeration tank in the A2O process.
Preferably, the biological carrier comprises a biological filler, a biological film and microorganisms are arranged on the biological filler, and the thickness of the biological film is 50-200 μm.
Preferably, the biological filler comprises an enzyme preparation and a mineral substance, and is arranged into a honeycomb or net or plate structure to increase the specific surface area of the biological film and microorganisms.
The enzyme preparation is a photocatalyst, and the photocatalyst comprises titanium dioxide, zinc oxide, tin oxide, zirconium dioxide and cadmium sulfide.
Preferably, the biological filler is a suspended filler, and the suspended filler has a single diameter of 10-20mm and a specific surface area of 1000m 2 /m 3 The biological filler is uniformly arranged on the inner side of the aeration tank.
Preferably, biological reaction and hydrolysis reaction occur on the biological membrane, and the biological membrane and the activated sludge form a biochemical reaction system for microbial symbiosis.
The invention has the beneficial effects that:
1. by using the existing A2O process, the advantages of stable running and high volume load of a biofilm process are integrated, the advantages of good effluent quality, good denitrification and dephosphorization effects and the like of an activated sludge process are retained, and biological carriers (photocatalyst and mineral substances) are added into an aeration tank in the A2O process, so that more microbial strains can be cultured, sewage can be better purified, the main drainage water quality after being subjected to scaling can reach the index of class IV water bodies, the biological activity and the biological total amount can be enhanced through suspension type fillers and additional high-efficiency microbial agents, the biological population is increased, the biological chain is prolonged, reasonable nutrition ratio and process conditions are controlled at the same time, and the purposes of high-efficiency and low-consumption total nitrogen removal and sludge reduction are realized; by the scheme, the sludge concentration (MLVSS) in the reaction tank is improved; the sludge age contradiction between denitrification and dephosphorization is solved; the treatment effect on the pollutants difficult to degrade is improved; the sludge sedimentation coefficient SVI is reduced, the sludge bulking is inhibited or slowed down, and the sludge yield of a biochemical system is reduced.
Drawings
FIG. 1 is a schematic view of the interior of an aeration tank in the sludge-biofilm co-generation sewage treatment process technology provided by the invention;
FIG. 2 is a schematic view of a process flow of a sludge-biofilm co-generation sewage treatment process technology provided by the invention.
In the figure: 1. an aeration tank; 2. biological fillers; 3. a biofilm; 4. the liquid film is quiescent.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, a sludge-biofilm symbiotic sewage treatment process technology comprises an A2O process, wherein the A2O process comprises a water inlet tank, an anaerobic tank, an anoxic tank, an aeration tank 1, a sedimentation tank and a water outlet tank, and the water inlet tank, the anaerobic tank, the anoxic tank, the aeration tank, the sedimentation tank and the water outlet tank are sequentially arranged, and the sludge-biofilm symbiotic sewage treatment process technology is characterized in that a biological carrier is added into the aeration tank 1 in the A2O process. The biological carrier is added into the aeration tank 1, the microorganism with fixed growth is introduced into the biological carrier, the microorganism comprises protozoa and metazoan, the protozoa are flagellates, gastrodiaes and ciliates, the metazoan are rotifers and nematodes, on one hand, the microorganism can be conveniently cultured through the biological carrier, and on the other hand, nitrogen and phosphorus in the sewage can be effectively removed through the cultured microorganism.
The biological carrier comprises a biological filler 2, and a biological film 3 and microorganisms are arranged on the biological filler 2. The thickness of the biological film is 50-200 μm, and a biochemical reaction system with symbiosis of suspended state (activated sludge) and attached state (biological film) microorganisms is formed through the biological film 3 and the microorganisms on the biological filler, so that the effects of removing total nitrogen with high efficiency and low consumption and realizing sludge reduction are realized.
The biological filler 2 comprises a photocatalyst and mineral substances, the mineral substances are activated carbon, and the biological filler 2 is arranged into a honeycomb or net or plate structure to increase the specific surface area of a biological film and microorganisms. Through photocatalyst and mineral substance, can improve the purification treatment of sewage for the higher authority cultivates more microorganisms, satisfies sewage discharge standard, makes the sewage main index reach class IV water level.
The biological filler 2 is a suspended filler, and the suspended filler has a single root with the diameter of 10-20mm and the specific surface area of 1000m 2 /m 3 The biological filler is uniformly arranged on the inner side of the aeration tank. The biological filler can be flexibly selected according to different sewage treatment processes, the use is more convenient, the biological activity and the total biological quantity can be enhanced through the suspended filler and the added high-efficiency microbial inoculum, the biological population is increased, the biological chain is prolonged, the reasonable nutrition proportion and process conditions are controlled, and the purposes of removing total nitrogen with high efficiency and low consumption and realizing sludge reduction are realized.
The biological reaction and hydrolysis reaction occur on the biological membrane 3, and the biological membrane 3 and the activated sludge form a static liquid membrane 4 and are attached to one side of the biological membrane 3.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (4)
1. A sludge-biofilm symbiotic sewage treatment process technology comprises an A2O process, wherein the A2O process comprises a water inlet tank, an anaerobic tank, an anoxic tank, an aeration tank, a sedimentation tank and a water outlet tank, and the water inlet tank, the anaerobic tank, the anoxic tank, the aeration tank (1), the sedimentation tank and the water outlet tank are sequentially arranged, the sludge-biofilm symbiotic sewage treatment process is characterized in that a biological carrier is added into the aeration tank (1) in the A2O process, the biological carrier comprises a biological filler (2) and microorganisms, a biological film (3) is arranged on the biological filler (2), the thickness of the biological film (3) is 50-200 mu m, the microorganisms grow through holes in the biological filler and spread on the surface of the biological filler, the biological filler (2) comprises a high-efficiency microbial inoculum and mineral substances, and the biological filler (2) is arranged into a honeycomb-shaped or net-shaped or plate-shaped structure to increase the specific surface area of the biological film and the microorganisms.
2. The sludge-biofilm co-generation sewage treatment process technology as claimed in claim 1, wherein the high-efficiency microbial inoculum is a photocatalyst, and the photocatalyst comprises titanium dioxide, zinc oxide, tin oxide, zirconium dioxide and cadmium sulfide.
3. The sludge-biofilm symbiosis sewage treatment process technology as claimed in claim 1, wherein the biological filler (2) is a suspended filler, the biological filler (2) is uniformly arranged at the inner side of the aeration tank (1), and the suspended filler has a single diameter of 10-20mm and a specific surface area of 1000m 2 /m 3 。
4. The sludge membrane symbiosis sewage treatment process technology according to claim 2, wherein the biological reaction and the hydrolysis reaction are generated on the biological membrane (3), and one side of the biological membrane (3) and the activated sludge form a static liquid membrane (4) and are attached to one side of the biological membrane (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211250358.0A CN115321673A (en) | 2022-10-13 | 2022-10-13 | Sludge-membrane symbiotic sewage treatment process technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211250358.0A CN115321673A (en) | 2022-10-13 | 2022-10-13 | Sludge-membrane symbiotic sewage treatment process technology |
Publications (1)
| Publication Number | Publication Date |
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| CN115321673A true CN115321673A (en) | 2022-11-11 |
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| CN202211250358.0A Pending CN115321673A (en) | 2022-10-13 | 2022-10-13 | Sludge-membrane symbiotic sewage treatment process technology |
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| CN (1) | CN115321673A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117843127A (en) * | 2024-03-04 | 2024-04-09 | 中国科学院过程工程研究所 | Microorganism coupling ozone advanced oxidation integrated device for garbage leachate treatment and method thereof |
| CN117964100A (en) * | 2024-03-14 | 2024-05-03 | 河南省交通规划设计研究院股份有限公司 | Method for induced culture of aerobic granular sludge |
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| CN117843127A (en) * | 2024-03-04 | 2024-04-09 | 中国科学院过程工程研究所 | Microorganism coupling ozone advanced oxidation integrated device for garbage leachate treatment and method thereof |
| CN117964100A (en) * | 2024-03-14 | 2024-05-03 | 河南省交通规划设计研究院股份有限公司 | Method for induced culture of aerobic granular sludge |
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