CN113277681A - Ecological treatment method of wastewater - Google Patents
Ecological treatment method of wastewater Download PDFInfo
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- CN113277681A CN113277681A CN202110652192.4A CN202110652192A CN113277681A CN 113277681 A CN113277681 A CN 113277681A CN 202110652192 A CN202110652192 A CN 202110652192A CN 113277681 A CN113277681 A CN 113277681A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 230000001699 photocatalysis Effects 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000011941 photocatalyst Substances 0.000 claims abstract description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007146 photocatalysis Methods 0.000 claims abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004146 energy storage Methods 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims abstract description 4
- 239000010453 quartz Substances 0.000 claims abstract description 4
- 239000012780 transparent material Substances 0.000 claims abstract description 3
- 238000004062 sedimentation Methods 0.000 claims description 41
- 230000003068 static effect Effects 0.000 claims description 22
- 238000005273 aeration Methods 0.000 claims description 16
- 238000000926 separation method Methods 0.000 claims description 16
- 239000010802 sludge Substances 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000009264 composting Methods 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000012806 monitoring device Methods 0.000 claims description 4
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 claims description 4
- 229910002370 SrTiO3 Inorganic materials 0.000 claims description 2
- 238000005276 aerator Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052681 coesite Inorganic materials 0.000 claims description 2
- 229910052906 cristobalite Inorganic materials 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 229910052682 stishovite Inorganic materials 0.000 claims description 2
- 229910052905 tridymite Inorganic materials 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 12
- 238000000746 purification Methods 0.000 description 9
- 239000010865 sewage Substances 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001546 nitrifying effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 2
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- 238000012851 eutrophication Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000008239 natural water Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000006228 supernatant Substances 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 230000035558 fertility Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
-
- 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
-
- 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
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Physical Water Treatments (AREA)
- Catalysts (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses an ecological treatment method of wastewater, wherein the wastewater after a pretreatment stage is subjected to a photocatalytic ecological floating platform treatment stage and a natural ecosystem treatment stage to achieve standard discharge; the photocatalytic ecological floating platform treatment stage is completed by connecting a plurality of photocatalytic floating beds with the same structure in parallel in a photocatalytic tank; the photocatalytic floating bed sequentially comprises a photocatalytic net, a biological floating bed and a water circulating system from top to bottom; a water outlet pipe in the photocatalytic tank is communicated with a natural ecological system; the photocatalysis net is a concave light-gathering structure made of nano photocatalyst material; the biological floating bed is a hollow structure with openings at two ends, and the surface depressions of the biological floating bed are matched with the convex surfaces of the photocatalytic net; the biological floating bed is made of transparent materials such as quartz, glass and the like; the outer surface of the biological floating bed is sprayed with photoinduced energy storage luminous powder; two open ends of the biological floating bed are both provided with an active carbon filter layer.
Description
Technical Field
The invention relates to the field of wastewater purification, in particular to an ecological treatment method for wastewater.
Background
In recent years, with the economic development of China and the improvement of the living standard of people, the content of nitrogen and phosphorus in urban domestic sewage is obviously increased, the treatment load of a sewage treatment plant is increased, and the sewage treatment cost is increased. After a large amount of organic matters, nitrogen, phosphorus and other nutrient substances in the urban sewage are discharged into a water body, water body pollution and eutrophication can be caused, and the water body is further black and smelly due to the aggravated eutrophication. Therefore, the primary A standard of the discharge standard of pollutants for municipal wastewater treatment plants (GB18918-2002) issued in 2002 in China puts forward more strict requirements on the discharge standard of nitrogen and phosphorus.
In the prior art, the wastewater treatment mainly depends on nitrifying bacteria to remove nitrogen and phosphorus after the wastewater is treated by digestion and denitrification, and the wastewater is discharged after reaching the standard. However, the wastewater treated by the nitrifying bacteria does not effectively remove bacteria such as escherichia coli and tubercle bacillus in the water although the water quality reaches the standard. Therefore, how to remove impurities such as bacteria in water while purifying water is a new development direction in the field of environmental protection.
Disclosure of Invention
The invention aims to overcome the technical defects, provides an ecological treatment method of wastewater, and solves the technical problem that bacteria cannot be effectively removed in the water quality purification in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention provides an ecological treatment method of wastewater, the wastewater after the pretreatment stage is subjected to a photocatalytic ecological floating platform treatment stage and a natural ecological system treatment stage and then is discharged after reaching the standard;
wherein the pretreatment stage comprises an oil separation tank, a primary sedimentation tank, a static sedimentation tank, an aeration tank and a sedimentation tank; a water inlet pipe introduces the wastewater into the oil separation tank; the oil separation tank is used as a starting point of the pretreatment stage and is communicated with the primary sedimentation tank; the primary sedimentation tank is communicated with the static sedimentation tank; the static sedimentation tank is communicated with the aeration tank, the sedimentation tank and the photocatalytic ecological floating platform in sequence; the treatment stage of the photocatalytic ecological floating platform is completed by connecting a plurality of photocatalytic floating beds with the same structure in parallel; the catalytic floating bed sequentially comprises a photocatalytic net, a biological floating bed and a water circulating system from top to bottom; circulating water in the water circulating system flows into a natural ecological system treatment stage after reaching the standard; the natural ecosystem treatment stage also comprises a water outlet pool in which a plurality of aquatic plants are planted.
Compared with the prior art, the invention has the beneficial effects that: settling and layering sludge to enable sewage to be layered and silted up, and allowing the sludge to flow into a sludge concentration tank through a sludge discharge pipe for external composting; the rest clear liquid is subjected to nitration decomposition in a static sedimentation tank and aeration reaction in an aeration tank to realize primary purification of water quality; then the water body of the water wastewater is secondarily purified through the decomposition reaction of the photocatalyst material and sunlight or ultraviolet rays on the water, so that the effect of disinfection and sterilization is realized; the wastewater water body after secondary purification reaches the standard, is discharged into a natural ecological system to purify the water quality through the ecological running water of the aquatic plants, and can be directly discharged into a natural water system after being recycled for multiple times to reach the standard.
Drawings
FIG. 1 is a process flow diagram of a process for the ecological treatment of wastewater according to the invention;
description of reference numerals: a-a pretreatment stage; b, a photocatalytic ecological floating platform treatment stage; c, natural ecosystem treatment phase; 1-an oil separation tank; 11-sludge concentration tank; 12-oil-water separation net; 2-a primary sedimentation tank; 21-a clean water pipe; 3-a static settling tank; 31-a water seal device; 311-an exhaust pipe; 32-a return pipe; 4-an aeration tank; 41-a blower; 5-a sedimentation tank; 6-photocatalytic floating bed; 61-a photocatalytic network; 62-biological floating bed; 63-a water circulation system; 71-a water outlet well; 72-pool of aquatic plants.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides an ecological treatment method of wastewater, wherein the wastewater after a pretreatment stage A is subjected to a photocatalytic ecological floating platform treatment stage B and a natural ecological system treatment stage C to achieve standard discharge;
the pretreatment stage A comprises an oil separation tank 1, a primary sedimentation tank 52, a static sedimentation tank, an aeration tank 4 and a sedimentation tank 5; a water inlet pipe introduces the wastewater into the oil separation tank 1; the oil separation tank 1 is used as the starting point of the pretreatment stage A and is communicated with the primary sedimentation tank 52; the water outlet pipe of the primary sedimentation tank 52 is communicated with the water inlet pipe of the static sedimentation tank; the static sedimentation tank is communicated with the aeration tank 4, the sedimentation tank 5 and the photocatalytic ecological floating platform treatment stage B in sequence; the static sedimentation tank is communicated with the aeration tank 4 through a return pipe 32.
The photocatalytic ecological floating platform treatment stage B is completed by connecting a plurality of photocatalytic floating beds 6 with the same structure in parallel in a photocatalytic tank; the photocatalytic floating bed 6 sequentially comprises a photocatalytic net 61, a biological floating bed 62 and a water circulating system 63 from top to bottom; a water outlet pipe in the photocatalytic tank is communicated with a natural ecological system; the photocatalytic net 61 is a concave light-gathering structure made of nano-scale photocatalyst materials; the biological floating bed 62 is a hollow structure with openings at two ends, and the surface depressions of the biological floating bed are matched with the convex surfaces of the photocatalytic net 61; the biological floating bed 62 is made of transparent materials such as quartz, glass and the like; the outer surface of the biological floating bed 62 is sprayed with light-induced energy storage luminous powder; two open ends of the biological floating bed 62 are provided with active carbon filter layers.
The natural ecosystem treatment phase C comprises a water outlet pool and an aquatic plant pool 72 in which a plurality of aquatic plants are planted; the water outlet pipe of the photocatalysis tank is communicated with the water inlet pipe of the aquatic plant pond 72; the water outlet pipe of the aquatic plant pond 72 is communicated with the water inlet pipe of the water outlet pool.
Preferably, the photocatalyst material includes, but is not limited to, TiO2、ZnO、CdS、WO3、Fe2O3、PbS、SnO2、ZnS、SrTiO3、SiO2。
Preferably, an A2O + AO integrated device is arranged in the static sedimentation tank. The static sedimentation tank is connected with a water seal device 31; a plurality of stirrers are arranged in the static sedimentation tank; the bottom of the aeration tank 4 is provided with a plurality of aerators which are communicated with oxygen. A2O + AO integrated equipment is arranged in the static nuclear sedimentation tank.
Specifically, sewage can enter the oil separation tank 1 through the water inlet pipe for oil-water separation, and sludge can enter the sludge concentration tank 11 through the sludge discharge pipe for composting so as to improve the fertility degree of farmland land; in addition, the wastewater flows back for a plurality of times through the cooperation of the water inlet pipe and the return pipe 32 by the static sedimentation tank and the aeration tank 4 so as to cooperate with nitrifying bacteria to carry out aerobic reaction, anaerobic reaction and anaerobic reaction in the wastewater, so that the wastewater achieves the effects of dephosphorization and denitrification, and phosphorus and nitrogen elements are discharged into the atmosphere in a gas form. The wastewater which is primarily purified to remove phosphorus and nitrogen is subjected to secondary precipitation in the sedimentation tank 5, and the supernatant after precipitation enters a photocatalytic ecological floating platform treatment stage B for further purification treatment.
Specifically, after the supernatant in the sedimentation tank 5 enters the photocatalytic ecological floating platform treatment stage B, the nano photocatalyst material is utilized to react with sunlight, and then secondary purification treatment is carried out on the primarily purified wastewater so as to achieve the purposes of disinfection and sterilization. The photocatalysis net 61 is specially of a concave structure, so that ultraviolet rays can be gathered to the maximum degree, at the moment, the photocatalysis net 61 can perform oxidation-reduction reaction with hydroxyl, halide, carboxylic acid and other substances in the water body to the maximum degree under the catalysis condition of sunlight and gradually degrade, and finally become harmless micromolecular substances, so that the aim of secondary evolution of the wastewater and the water body is fulfilled.
Specifically, the biological floating bed 62 is used as a bearing structure of the photocatalytic net 61 and is made of transparent and firm quartz, glass and other materials, so that the catalytic action of the photocatalytic net 61 and sunlight is not hindered, and the biological floating bed is firm and durable. Particularly, a water circulation system 63 is further arranged at the treatment stage B of the photocatalytic ecological floating platform, the water circulation system 63 enables the water body to flow, the circulation purification effect is accelerated, and the water body is discharged after being circulated for multiple times until the water body reaches the set standard of the detection monitoring device. Wherein the detection monitoring device is arranged in the photocatalysis pool.
Specifically, the biological floating bed 62 has a structure with a concave surface, a hollow interior and two ends sealed by activated carbon filter layers, and can further purify the wastewater with the aid of a water circulation system. In addition, the outer surface of the biological floating bed 62 is also sprayed with photo-induced energy storage luminous powder, and the focus of the photo-catalytic net 61 is also provided with an ultraviolet light source; the ultraviolet light source can emit ultraviolet rays under the condition of insufficient light, so that the photocatalytic ecological floating platform treatment stage B is kept running all the time.
Specifically, in the natural ecosystem treatment stage C, the wastewater water body after the secondary purification flows into the natural ecosystem, circulates through the system in the water outlet well 71 and the aquatic plant pond 72, and is discharged into the natural water body until the detection monitoring device at the water outlet pipe end of the water outlet well 71 reaches a predetermined standard.
The beneficial effects of the invention different from the prior art include: settling and layering sludge to enable sewage to be layered and silted up, and allowing the sludge to flow into a sludge concentration tank through a sludge discharge pipe for external composting; the remaining clear liquid is subjected to processes such as a static sedimentation tank, an aeration tank and the like to realize the primary purification of water quality; then the water quality is secondarily purified through the reaction of the photocatalyst material and the sunlight or ultraviolet rays, so that the effects of disinfection and sterilization are realized; finally, the disinfected water is discharged into a natural ecological system, the water quality is purified by the ecological running water of the aquatic plants, and the water can be directly discharged into the aquatic system after multiple cycles.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. An ecological treatment method of waste water is characterized in that the waste water after the pretreatment stage is discharged after reaching standards after passing through a photocatalysis ecological floating platform treatment stage and a natural ecological system treatment stage;
the photocatalytic ecological floating platform treatment stage is completed by connecting a plurality of photocatalytic floating beds with the same structure in parallel in a photocatalytic tank; the photocatalytic floating bed sequentially comprises a photocatalytic net, a biological floating bed and a water circulating system from top to bottom; a water outlet pipe in the photocatalytic tank is communicated with the natural ecological system;
the photocatalysis net is a concave light-gathering structure made of nano photocatalyst materials; the biological floating bed is a hollow structure with openings at two ends, and the surface depressions of the biological floating bed are matched with the convex surfaces of the photocatalytic net; the biological floating bed is made of transparent materials such as quartz, glass and the like; the outer surface of the biological floating bed is sprayed with photoinduced energy storage luminous powder; and two open ends of the biological floating bed are both provided with an activated carbon filter layer.
2. The ecological treatment method of wastewater according to claim 1, wherein the pretreatment stage comprises an oil separation tank, a primary sedimentation tank, a static sedimentation tank, an aeration tank and a sedimentation tank; a water inlet pipe introduces the wastewater into the oil separation tank; the oil separation tank is used as a starting point of the pretreatment stage and is communicated with the primary sedimentation tank; the water outlet pipe of the primary sedimentation tank is communicated with the water inlet pipe of the static sedimentation tank; the static sedimentation tank is communicated with the aeration tank, the sedimentation tank and the photocatalytic ecological floating platform in sequence; the static sedimentation tank and the aeration tank are also communicated with a return pipe.
3. The ecological treatment method of wastewater according to claim 1, wherein the natural ecosystem treatment stage comprises a effluent pond and an aquatic plant pond planted with a plurality of aquatic plants; a water outlet pipe of the photocatalytic tank is communicated with a water inlet pipe of the aquatic plant pond; and the water outlet pipe of the aquatic plant pond is communicated with the water inlet pipe of the water outlet pond.
4. The method of claim 1, wherein the photocatalyst material includes but is not limited to TiO2、ZnO、CdS、WO3、Fe2O3、PbS、SnO2、ZnS、SrTiO3、SiO2。
5. The ecological treatment method of wastewater according to claim 2, wherein an oil-water separation net is arranged in the oil separation tank; and the sludge settled after the oil separation tank is stood is discharged into a concentration tank through a sludge discharge pipe for external composting.
6. The ecological treatment method of wastewater according to claim 2, wherein the primary sedimentation tank is further filled with clear water through a clear water pipe; the static sedimentation tank is communicated with a water seal device which exhausts air at a high altitude; a plurality of stirrers are arranged in the static sedimentation tank; the bottom of the aeration tank is provided with a plurality of aerators which are communicated with oxygen.
7. The ecological treatment method of wastewater according to claim 1, wherein an ultraviolet lamp is disposed at the focus of the photocatalytic net.
8. The ecological wastewater treatment method according to claim 2, wherein an A2O + AO integrated device is arranged in the static nuclear sedimentation tank.
9. The ecological wastewater treatment method according to claim 2, wherein the water outlet pipe orifice of the photocatalytic tank and the water outlet pipe orifice of the water outlet tank are provided with detection monitoring devices.
10. The ecological treatment method of wastewater according to claim 2, wherein the aeration tank is externally connected with a blower.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272754U (en) * | 2011-09-22 | 2012-06-13 | 东华大学 | Photocatalytic floating bed device |
| CN205442947U (en) * | 2015-12-21 | 2016-08-10 | 江苏中金环保科技有限公司 | Coking wastewater treatment system |
| CN106746213A (en) * | 2016-12-20 | 2017-05-31 | 云南沃润特环境工程有限公司 | The municipal water treatment systems and method of composite photo catalyst |
| CN107827242A (en) * | 2017-11-24 | 2018-03-23 | 湖南新九方科技有限公司 | It is a kind of for the energy-conservation landscape combined ecological chinampa of black and odorous water Long term control and its method of construction |
| CN108911017A (en) * | 2018-06-07 | 2018-11-30 | 东南大学 | A kind of photocatalysis floating bed for water remediation |
| CN110550813A (en) * | 2018-09-28 | 2019-12-10 | 广东新会中集特种运输设备有限公司 | Sewage treatment device |
| CN111056701A (en) * | 2019-12-05 | 2020-04-24 | 深圳市朗坤环境集团股份有限公司 | Wastewater composite disinfection process for harmless treatment of livestock and poultry died of diseases |
| CN210944983U (en) * | 2019-09-05 | 2020-07-07 | 西安建筑科技大学 | Microcirculation type photocatalytic intelligent processing device |
-
2021
- 2021-06-11 CN CN202110652192.4A patent/CN113277681A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202272754U (en) * | 2011-09-22 | 2012-06-13 | 东华大学 | Photocatalytic floating bed device |
| CN205442947U (en) * | 2015-12-21 | 2016-08-10 | 江苏中金环保科技有限公司 | Coking wastewater treatment system |
| CN106746213A (en) * | 2016-12-20 | 2017-05-31 | 云南沃润特环境工程有限公司 | The municipal water treatment systems and method of composite photo catalyst |
| CN107827242A (en) * | 2017-11-24 | 2018-03-23 | 湖南新九方科技有限公司 | It is a kind of for the energy-conservation landscape combined ecological chinampa of black and odorous water Long term control and its method of construction |
| CN108911017A (en) * | 2018-06-07 | 2018-11-30 | 东南大学 | A kind of photocatalysis floating bed for water remediation |
| CN110550813A (en) * | 2018-09-28 | 2019-12-10 | 广东新会中集特种运输设备有限公司 | Sewage treatment device |
| CN210944983U (en) * | 2019-09-05 | 2020-07-07 | 西安建筑科技大学 | Microcirculation type photocatalytic intelligent processing device |
| CN111056701A (en) * | 2019-12-05 | 2020-04-24 | 深圳市朗坤环境集团股份有限公司 | Wastewater composite disinfection process for harmless treatment of livestock and poultry died of diseases |
Non-Patent Citations (3)
| Title |
|---|
| 张其仔: "《新兴产业和高新技术现状与前景研究丛书 环保产业现状与发展前景》", 31 May 2015 * |
| 杨逢乐等著, 同济大学出版社 * |
| 陈木青: "《材料物理实验教程》", 28 February 2018 * |
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