CN115124182A - Sewage advanced treatment equipment combining microorganism propagation and cultivation - Google Patents
Sewage advanced treatment equipment combining microorganism propagation and cultivation Download PDFInfo
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- CN115124182A CN115124182A CN202210274283.3A CN202210274283A CN115124182A CN 115124182 A CN115124182 A CN 115124182A CN 202210274283 A CN202210274283 A CN 202210274283A CN 115124182 A CN115124182 A CN 115124182A
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- 244000005700 microbiome Species 0.000 title claims abstract description 75
- 239000010865 sewage Substances 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 105
- 238000005273 aeration Methods 0.000 claims abstract description 31
- 239000011550 stock solution Substances 0.000 claims abstract description 18
- 230000001954 sterilising effect Effects 0.000 claims abstract description 10
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 52
- 239000002245 particle Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 11
- 238000004065 wastewater treatment Methods 0.000 claims description 11
- 239000000945 filler Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 6
- 230000000813 microbial effect Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 239000003344 environmental pollutant Substances 0.000 description 11
- 231100000719 pollutant Toxicity 0.000 description 11
- 238000001914 filtration Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000002101 nanobubble Substances 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 230000000593 degrading effect Effects 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 241000894006 Bacteria Species 0.000 description 4
- 238000011001 backwashing Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000002068 microbial inoculum Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000192700 Cyanobacteria Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- VTEIFHQUZWABDE-UHFFFAOYSA-N 2-(2,5-dimethoxy-4-methylphenyl)-2-methoxyethanamine Chemical compound COC(CN)C1=CC(OC)=C(C)C=C1OC VTEIFHQUZWABDE-UHFFFAOYSA-N 0.000 description 1
- 241000194108 Bacillus licheniformis Species 0.000 description 1
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- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
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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
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- 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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
-
- 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)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention relates to a sewage advanced treatment device combining microorganism propagation. The main body of the device is divided into two parts: a microorganism propagation device and a sewage advanced treatment device. The microorganism expanding culture device mainly comprises a submersible pump (1), a fan (2), a raw water sterilization device (8), a dissolved air tank (3), a microorganism stock solution storage tank (6) and an expanding culture reactor (4). The sewage advanced treatment device mainly comprises a conveying pipeline (14), a micro-nano aeration pipe (15) and a sewage advanced treatment bed. Through the treatment of the equipment, the diversity of microorganisms in the polluted water body is improved, the water quality of the water body is recovered, and the self-purification capacity of the water body can be quickly improved.
Description
Technical Field
The invention relates to sewage treatment equipment, which is particularly suitable for multi-scene polluted water bodies with deficient microbial diversity and insufficient self-purification capacity of the water bodies, and belongs to the technical field of multiple sewage treatment.
Background
Each river is a small-sized water ecosystem and has certain self-cleaning capacity for foreign pollutants, the self-cleaning function mainly has certain degradation effect on the pollutants through indigenous microorganisms in the river, but the degradation capacity of the microorganisms is limited, when the influx of exogenous pollutants exceeds the degradation capacity of the microorganisms, a large amount of substances which are not degraded by the microorganisms remain in the river, and the water quality of the river is deteriorated even becomes a black and odorous river after the river grows. Under the condition of imperfect black and odorous watercourses or water ecosystem, the growth and the propagation of microorganisms are not suitable, the types and the number of the microorganisms are reduced, the activity is reduced, and the large amount of microbial communities disappear seriously, so that the self-recovery of rivers is more unfavorable.
The invention relates to water deepening treatment equipment combining microorganism propagation, aiming at the conditions of imperfect structure, microorganism shortage and activity reduction of a water ecosystem, and the water deepening treatment equipment can increase the content of microorganisms in water and stimulate the activity of indigenous microorganisms by releasing a microorganism solution after propagation to polluted water.
Disclosure of Invention
The invention provides a sewage advanced treatment device combining microorganism propagation, which is suitable for water with deficient microorganism diversity and insufficient water self-purification capacity.
The technical problems to be solved by the invention are as follows: the water ecological system is imperfect, the water body with deficient microorganism, especially the black and odorous river channel, is difficult to treat completely or maintain after treatment by the general water quality treatment mode.
The technical scheme adopted by the invention for solving the technical problem is as follows: the treatment mode of combining microorganism propagation and micro-nano aeration with functional filler advanced treatment is utilized to improve the content of dissolved oxygen and microorganisms in the water body, activate the activity of the microorganisms in the water body, deeply purify the water body and recover the self-purification capability of the water body.
Specifically, the invention provides a sewage advanced treatment device combining microorganism propagation, which comprises a microorganism propagation device and a sewage advanced treatment device which are communicated, and is characterized in that: wherein the microorganism propagation device comprises a submersible pump, a fan, a raw water sterilization device, a dissolved air tank, a microorganism stock solution storage tank and a propagation reactor; the sewage advanced treatment device mainly comprises a conveying pipeline, a micro-nano aeration pipe and a sewage advanced treatment bed; the micro-nano aeration pipe is positioned at the bottom of the sewage deep treatment bed; the microorganism expanding culture device is placed in an equipment box on the bank side of the polluted water body, and the sewage advanced treatment device is placed in the sewage body to be treated.
Furthermore, a water inlet of the raw water sterilization device is connected with a submersible pump through a water inlet pipeline, a water outlet of the raw water sterilization device is connected with a dissolved air tank through a pipeline, an inlet pipe of the dissolved air tank is also connected with a fan through a pipeline, air and raw water enter the dissolved air tank after being mixed in the inlet pipe, and an outlet of the dissolved air tank is connected with an inlet of the spread culture reactor through a pipeline; the microorganism stock solution storage tank is connected with the inlet of the culture expanding reactor through a pipeline; the outlet of the expanding culture reactor is connected with a conveying pipeline, and the tail end of the conveying pipeline is connected with a micro-nano aeration pipe.
Furthermore, a stirrer is arranged in the microbial stock solution storage tank, and a liquid level observer is arranged on the side surface of the microbial stock solution storage tank; the outlet is connected with a metering pump through a pipeline.
Furthermore, the inside double-deck stirring rake that is provided with of expand and cultivate reactor, the lateral wall is provided with the spoiler, feed inlet height is not less than the spoiler and goes up along the height.
Further, a micro-nano aeration disc is arranged at the bottom of the culture expanding reactor and is connected with an aeration fan through a pipeline.
Furthermore, check valves are arranged on an inlet pipe and an outlet pipe of the dissolved air tank, a pressure gauge is arranged on an air inlet pipeline, and an exhaust valve is arranged at the top of the dissolved air tank;
a check valve is arranged on a water inlet pipeline of the expanding culture reactor; the outer wall of the microorganism expanding culture device is provided with a heat preservation jacket, the top end of the microorganism expanding culture device is provided with an exhaust port, and the exhaust port is provided with a ball valve for controlling flow.
Furthermore, the outlet of the expanding culture reactor is connected with a conveying pipeline through a Venturi tube, the middle part of the Venturi tube is also provided with an air inlet, and the air inlet is connected with the outlet of an aeration fan through a pipeline.
Furthermore, the outlet of the expanding culture reactor is connected with a conveying pipe through a flange, the conveying pipe is fixed on the dyke by adopting a fixing bolt, the sewage deep treatment bed is fixed with fixing piles through a plurality of groups of hauling ropes, and the fixing piles are arranged on the dyke.
Furthermore, the sewage advanced treatment bed is of a hollow box body structure made of stainless steel, and three functional filter materials are arranged in the sewage advanced treatment bed and respectively comprise a gravel filter material with the particle size of 40-50 mm, a volcanic filter material with the particle size of 20-30 mm and a biological ceramsite filter material with the particle size of 10-20 mm; the three fillers are arranged in sequence from top to bottom or along the water flow direction: a gravel filter material, a volcanic rock filter material and a biological ceramsite filter material.
Furthermore, the equipment box is also provided with a controller for controlling the fan, the aeration fan, the submersible pump, the metering pump and the exhaust valve, the sewage advanced treatment device is provided with a water quality detector, the water quality detector is associated with the controller, and the controller controls the running state of each part of the equipment according to the data fed back by the water quality detector.
Further, the microorganism stock solution is various commercially available common microorganism stock solutions, and preferably comprises a microbial inoculum for degrading COD in a water body, a microbial inoculum for degrading ammonia nitrogen in a water body, a microbial inoculum for degrading blue-green algae and the like.
Furthermore, the heat preservation jacket on the outer wall of the microorganism expanding culture device is a circulating water bath jacket or an electric heating wire heat preservation jacket.
When the device is used, microorganism expanding culture liquid obtained by expanding culture of the microorganism expanding culture device is mixed with the micro-nano bubbles in the water outlet pipeline, the mixture is discharged into a river water body through the micro-nano bubble releaser, and the microorganisms are attached to the micro-nano bubbles and move from bottom to top to release the nano dissolved oxygen and the microorganisms into water.
Meanwhile, the filter function of the three-level multifunctional filter material is combined, the pollutants in the water body are adsorbed, and the microorganisms biologically decompose the pollutants in the filter material, so that the effect of advanced sewage treatment is achieved.
The first-stage functional filter material adopts the macadam filter material with the average particle size of 40-50 mm, the natural filter material has rough surface, large specific surface area and large specific gravity, and is beneficial to filtering suspended matters and colloids with large molecular weight in rivers.
The secondary functional filter material adopts natural volcanic filler, the average particle size of the filter material is 30-40 mm, the filter material has high aperture ratio, large specific surface area, good inertia and easy maintenance of more microbial biomass, and the volcanic biological filler is non-sharp particles, so that the filter material has small resistance to water flow during use and saves energy consumption. The film formation starting time of the volcanic rock filler is only about 27 hours, so that pollutants are effectively removed, and the removal rate of the pollutants such as organic matters, COD, BOD, ammonia, nitrogen and the like is over 80 percent.
Furthermore, the three-stage functional filter material is a high-efficiency biological ceramsite filter material, and the average particle size of the filter material is 10-20 mm. The biological ceramsite filter material has the advantages of uniform particle size, high porosity, criss-cross internal nets, difficult plate formation, strong adsorption effect on substances with small molecular weight, and suitability for deep filtration of water bodies. Compared with natural filter materials such as volcanic rocks and the like, the filter material has the advantages of smooth surface, easiness in backwashing, low backwashing energy consumption, low water consumption, easiness in falling off of an aging membrane, difficulty in blocking, no material leakage during backwashing and capability of overcoming the defect that backwashing is difficult to control and material leakage. The sewage interception capability of the biological ceramsite filter material is 1.5-2 times that of a quartz sand filter material, and the biological ceramsite filter material has a good filtering and adsorbing effect.
The product of the invention has the beneficial effects that:
1. the microbial propagation device with degradation pertinence provided by the invention is simple to operate and high in propagation efficiency, and the microbial medicament obtained by propagation has a certain improvement effect on a water ecosystem, recovers the self-purification capacity of a water body and continuously purifies the water body.
2. The device combines microorganism culture expansion and micro-nano aeration, the microorganism culture expansion increases the species and the content of microorganisms in the water body, has a certain improvement effect on a water ecological system, recovers the self-purification capacity of the water body, and continuously purifies the water body; the micro-nano aeration replaces the traditional aeration, so that the bubbles are more uniform and dense, the oxygenation effect is superior to that of the traditional aeration, sufficient oxygen is provided for the growth and the propagation of microorganisms, the transparency of a water body is improved, and the water quality is further improved.
3. The microorganism propagation and sewage advanced treatment equipment with degradation pertinence provided by the invention combines an advanced filtration and membrane process, different functional filter materials are used as the advanced treatment process, a plurality of filter materials are combined to comprehensively and efficiently adsorb pollutants in degraded water, and different filter materials are sequentially placed from large to small according to the water flow direction; compared with other traditional filter materials, the filter material adopted by the device has a large specific surface area, a biological film is easier to form on the surface, sewage flows through the filler, most suspended matters are intercepted, and pollutants are adsorbed and degraded by the filler and the biological film attached to the surface of the filler, so that pollutants such as COD (chemical oxygen demand), ammonia nitrogen, total phosphorus and the like in water are degraded, and the water body is purified.
Description of the drawings:
FIG. 1 is a schematic view of the microorganism culture expanding apparatus of the present invention.
FIG. 2 is a schematic view of an advanced wastewater treatment apparatus according to the present invention
Detailed Description
In order to better understand the invention, the contents of the invention are further clarified below with reference to examples to embody the functions of the invention. However, the present invention is not limited to the following examples.
The embodiment is suitable for treating black and odorous water. The sewage advanced treatment equipment combining microorganism expanding culture comprises a microorganism expanding culture device and a sewage advanced treatment device which are communicated, and is characterized in that: wherein the microorganism propagation device comprises a submersible pump 1, a fan 2, a raw water sterilization device 8, a dissolved air tank 3, a microorganism stock solution storage tank 6 and a propagation reactor 4; the sewage advanced treatment device mainly comprises a conveying pipeline 14, a micro-nano aeration pipe 15 and a sewage advanced treatment bed; the micro-nano aeration pipe 15 is positioned at the bottom of the sewage deep treatment bed; the microorganism expanding culture device is arranged in an equipment box 11 at the bank of the polluted water body, and the sewage advanced treatment device is arranged in the sewage water body to be treated.
In the embodiment, the sewage advanced treatment bed is a hollow box body structure made of stainless steel, three functional filter materials are arranged in the sewage advanced treatment bed with the size of 4m multiplied by 2m, and the three functional filter materials respectively comprise a gravel filter material with the particle size of 50mm, a volcanic filter material with the particle size of 30mm and a biological ceramsite filter material with the particle size of 20 mm; the three fillers are arranged in sequence along the water flow direction: a gravel filter material, a volcanic rock filter material and a biological ceramsite filter material.
The water inlet of the raw water sterilizing device 8 is connected with the submersible pump 1 through a water inlet pipeline to preliminarily sterilize raw water sent by the submersible pump, so that the influence of partial bacteria in the raw water on microbial preparations is avoided; the water outlet of the raw water sterilization device 8 is connected with the inlet pipe of the dissolved air tank 3 through a pipeline, the inlet pipe of the dissolved air tank 3 is also connected with the fan 2 through a pipeline, air and raw water are mixed in the inlet pipe of the dissolved air tank 3 for preliminary air dissolving, the mixed air enters the dissolved air tank 3, and the outlet of the dissolved air tank 3 is connected with the inlet of the expanded culture reactor 4 through a pipeline; the outlet of the culture expanding reactor 4 is connected with a conveying pipeline 14, and the tail end of the conveying pipeline 14 is connected with a micro-nano aeration pipe 15; all be provided with the check valve on the import pipe of dissolving gas pitcher 3 and the outlet pipe, set up the manometer on the pipeline that admits air, dissolve 3 tops of gas pitchers and set up discharge valve.
In the embodiment, a microorganism stock solution storage tank 6 is connected with an expanded culture reactor 4 through a pipeline, a stirrer is arranged in the microorganism stock solution storage tank 6, and a liquid level observer is arranged on the side surface of the microorganism stock solution storage tank; the original liquid level is paid attention to in real time through the liquid level observer, and when the liquid level is lower than the set low liquid level, the alarm device is triggered, and the liquid level observer gives an alarm. A metering pump 5 is arranged on a communicating pipeline of the microorganism stock solution storage tank 6 and the culture expanding reactor 4 and is used for controlling the feeding of the microorganism stock solution.
The expanding culture reactor 4 of the present example is a tank reactor with a diameter of 1m and a height of 2 m; the double-layer stirring paddle is arranged inside the stirring device, the side wall of the stirring device is provided with a spoiler, and the height of the feeding hole is flush with the height of the upper edge of the spoiler; the rotating speed of the stirring paddle of the embodiment is 60 r/min. The bottom of the expanding culture reactor 4 is provided with an aeration disc which is connected with a micro-nano aeration device 7 through a pipeline. Check valves are arranged on water inlet and outlet pipelines of the expanding culture reactor 4, an electric heating wire heat-insulating jacket is arranged on the outer wall of the expanding culture reactor, an exhaust port is arranged at the top end of the expanding culture reactor, and a ball valve is arranged at the exhaust port and used for controlling exhaust flow.
The outlet of the expanding culture reactor 4 of the embodiment is connected with a conveying pipeline 14 through a Venturi tube, the middle part of the Venturi tube is also provided with an air inlet, and the air inlet is connected with the outlet of an aeration fan 7 through a pipeline. Thus, the microorganism culture expanding liquid and the gas are fully mixed through the Venturi tube and then dispersed into the filter material of the sewage advanced treatment bed through the micro-nano aeration tube. The conveying pipe 14 is fixed on the dam by adopting a fixing bolt 13, the sewage advanced treatment bed is fixed by a plurality of groups of hauling ropes 19 and fixing piles 20, and the fixing piles 20 are arranged on the dam.
In this embodiment, the equipment box 11 is further provided with a controller for controlling the blower 2, the aeration blower 7, the submersible pump 1, the metering pump 5 and the exhaust valve, the advanced wastewater treatment device is provided with a water quality detector, the water quality detector is associated with the controller, and the controller controls the operation state of each part of the equipment according to data fed back by the water quality detector. The equipment box 11 is provided with a display module of a liquid crystal display screen, and an operator can observe the change of water quality data in real time and determine the microbial species for propagation according to the actual condition of water quality.
The microbial stock solution of the embodiment comprises a microbial agent for degrading COD (chemical oxygen demand) of the water body, a microbial agent for degrading ammonia nitrogen of the water body, a microbial agent for degrading blue-green algae and the like, wherein the strains comprise various beneficial strains such as nitrobacteria, denitrifying bacteria, phosphorus accumulating bacteria, bacillus subtilis, bacillus licheniformis, photosynthetic bacteria and the like, so that the microbial diversity of the water body is improved, the aquatic ecological environment is recovered, the transparency of the water body is improved, and the water quality of the water body is improved.
When the device is used, microorganism expanding culture liquid obtained by expanding culture of the microorganism expanding culture device is mixed with the micro-nano bubbles in the water outlet pipeline, the mixture is discharged into a river water body through the micro-nano bubble releaser, and the microorganisms are attached to the micro-nano bubbles and move from bottom to top to release the nano dissolved oxygen and the microorganisms into water. Compared with the traditional aeration, the micro-nano aeration generates more uniform and fine bubbles, the bubbles are combined with the water body to the maximum extent, the dissolved oxygen efficiency is high, the oxidative decomposition speed of organic pollution of the water body is accelerated, and the aerobic biochemical efficiency of microorganisms is exerted to the optimal state. The micro-nano bubble release pipeline is arranged in the depth filtering layer, and bubbles carrying microorganisms are released from bottom to top. Deep layer passing throughThe filtering material has rough appearance and large specific surface area during filtering, and microorganisms are easy to attach to the functional filtering material to form a biological membrane. The polluted water body is deeply filtered by three layers of functional filter materials, most suspended substances are respectively retained in the filter bed, and the biological membrane attached to the filter materials adsorbs and degrades the pollutants, so that the COD, BOD and NH of the effluent are effectively reduced while the SS of the effluent is reduced 3 N and TP to purify water.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and are not limited thereto; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a combine sewage advanced treatment unit that microorganism expands and cultivates, includes microorganism that is linked together expands cultivates device and sewage advanced treatment unit, its characterized in that: wherein the microorganism culture expanding device comprises a submersible pump (1), a fan (2), a raw water sterilization device (8), a dissolved air tank (3), a microorganism stock solution storage tank (6) and a culture expanding reactor (4); the sewage advanced treatment device mainly comprises a conveying pipeline (14), a micro-nano aeration pipe (15) and a sewage advanced treatment bed; the micro-nano aeration pipe (15) is positioned at the bottom of the sewage deep treatment bed; the microorganism expanding culture device is arranged in an equipment box (11) on the bank side of the polluted water body, and the sewage advanced treatment device is arranged in the sewage body to be treated.
2. The advanced wastewater treatment plant according to claim 1, characterized in that: the water inlet of the raw water sterilization device (8) is connected with the submersible pump (1) through a water inlet pipeline, the water outlet of the raw water sterilization device (8) is connected with the dissolved air tank (3) through a pipeline, an inlet pipe of the dissolved air tank (3) is also connected with the fan (2) through a pipeline, air and raw water are mixed in the inlet pipe and then enter the dissolved air tank (3), and the outlet of the dissolved air tank (3) is connected with the inlet of the propagation reactor (4) through a pipeline; the microorganism stock solution storage tank (6) is connected with the inlet of the culture expanding reactor (4) through a pipeline; the outlet of the expanding culture reactor (4) is connected with a conveying pipeline (14), and the tail end of the conveying pipeline (14) is connected with a micro-nano aeration pipe (15).
3. The advanced wastewater treatment plant according to claim 1, characterized in that: a stirrer is arranged in the microorganism stock solution storage tank (6), and a liquid level observer is arranged on the side surface of the microorganism stock solution storage tank; the outlet is connected with a metering pump (5) through a pipeline.
4. The advanced wastewater treatment plant according to claim 3, characterized in that: the inside of the expanding culture reactor (4) is provided with a double-layer stirring paddle, the side wall of the expanding culture reactor is provided with a spoiler, and the height of the feeding hole is not lower than the height of the upper edge of the spoiler.
5. The advanced wastewater treatment plant according to claim 1, characterized in that: the bottom of the culture expanding reactor (4) is provided with a micro-nano aeration disc (9), and the micro-nano aeration disc (9) is connected with an aeration fan (7) through a pipeline.
6. The advanced wastewater treatment plant according to claim 1, characterized in that: check valves are arranged on an inlet pipe and an outlet pipe of the dissolved air tank (3), a pressure gauge is arranged on an air inlet pipeline, and an exhaust valve is arranged at the top of the dissolved air tank (3);
a check valve is arranged on a water inlet pipeline of the expanding culture reactor (4); the outer wall of the microorganism expanding culture device (4) is provided with a heat preservation jacket, the top end of the microorganism expanding culture device is provided with an exhaust port, and the exhaust port is provided with a ball valve for controlling flow.
7. The advanced wastewater treatment equipment according to claim 1, characterized in that: the outlet of the expanding culture reactor (4) is connected with a conveying pipeline (14) through a Venturi tube, the middle part of the Venturi tube is also provided with an air inlet, and the air inlet is connected with the outlet of an aeration fan (7) through a pipeline.
8. The advanced wastewater treatment plant according to claim 1, characterized in that: the outlet of the expanding culture reactor (4) is connected with a conveying pipe (14) through a flange (12), the conveying pipe (14) is fixed on a dam through a fixing bolt (13), the sewage deep treatment bed is fixed with a fixing pile (20) through a plurality of groups of hauling ropes (19), and the fixing pile (20) is arranged on the dam.
9. The advanced wastewater treatment equipment according to claim 1, characterized in that: the sewage advanced treatment bed is of a hollow box body structure made of stainless steel, and three functional filter materials are arranged in the sewage advanced treatment bed and respectively comprise a gravel filter material with the particle size of 40-50 mm, a volcanic filter material with the particle size of 20-30 mm and a biological ceramsite filter material with the particle size of 10-20 mm; the three fillers are arranged in sequence from top to bottom or along the water flow direction: a gravel filter material, a volcanic rock filter material and a biological ceramsite filter material.
10. The advanced wastewater treatment plant according to claim 1, characterized in that: the equipment box (11) is also internally provided with a controller for controlling the fan (2), the aeration fan (7), the submersible pump (1), the metering pump (5) and the exhaust valve, the sewage advanced treatment device is provided with a water quality detector, the water quality detector is associated with the controller, and the controller controls the running state of each part of the equipment according to the data fed back by the water quality detector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210274283.3A CN115124182A (en) | 2022-03-21 | 2022-03-21 | Sewage advanced treatment equipment combining microorganism propagation and cultivation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210274283.3A CN115124182A (en) | 2022-03-21 | 2022-03-21 | Sewage advanced treatment equipment combining microorganism propagation and cultivation |
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| CN115124182A true CN115124182A (en) | 2022-09-30 |
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| CN202210274283.3A Pending CN115124182A (en) | 2022-03-21 | 2022-03-21 | Sewage advanced treatment equipment combining microorganism propagation and cultivation |
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