CN114873873A - Carbon emission reduction integrated sewage treatment equipment and technology - Google Patents
Carbon emission reduction integrated sewage treatment equipment and technology Download PDFInfo
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- CN114873873A CN114873873A CN202210690234.8A CN202210690234A CN114873873A CN 114873873 A CN114873873 A CN 114873873A CN 202210690234 A CN202210690234 A CN 202210690234A CN 114873873 A CN114873873 A CN 114873873A
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Classifications
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- C—CHEMISTRY; METALLURGY
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/62—Carbon oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/84—Biological processes
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- C—CHEMISTRY; METALLURGY
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- 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
- C02F3/302—Nitrification and denitrification treatment
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- C—CHEMISTRY; METALLURGY
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- 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
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- 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
- C02F1/325—Irradiation devices or lamp constructions
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Abstract
The invention relates to the technical field of sewage treatment, and discloses a carbon emission reduction integrated sewage treatment device and technology, which comprises a first area, a second area, a third area and a fourth area, wherein the first area comprises an anaerobic pre-denitrification pool, an anoxic denitrification pool, an aerobic multi-medium biomembrane pool and a baffling sedimentation pool, the second area comprises a PLC (programmable logic controller) automatic control equipment room, the third area comprises an ecological carbon reduction pool, the fourth area comprises a solar power equipment room, the anoxic denitrification pool comprises a second electromagnetic flow dividing valve and a first stripping stirring device, the aerobic multi-medium biomembrane pool comprises spherical suspended fillers, honeycomb suspended fillers, baffles, water inlet and distribution pipelines, composite fillers and an aeration device, the combination and optimization of the multi-medium biomembrane technology and the ecological pond can be realized through the matching of the structures, and through unique design and structural layout, an integrated sewage treatment device and technology which can achieve self-sufficiency in energy consumption and reduce carbon emission are obtained.
Description
Technical Field
The invention belongs to the technical field of sewage treatment, and particularly relates to carbon emission reduction integrated sewage treatment equipment and technology.
Background
At present, the carbon emission reduction sewage treatment technology is in a research development stage, and the application of large-scale practical projects is less. Zhang Yaley and the like research a carbon emission reduction airlift loop microalgae autotrophic-heterotrophic coupling photobioreactor for sewage treatment, and the characteristics that microalgae utilize different carbon sources are exerted through the coupling of microalgae photoautotrophy and heterotrophic, the culture cost is reduced by utilizing natural sunlight, and the efficiency of the photobioreactor is improved. The method has the advantages of high carbon sequestration efficiency, high microalgae culture concentration, stable system operation, low operation and maintenance cost and the like, and is suitable for carbon emission reduction in sewage treatment and large-scale low-cost efficient culture of microalgae. (Zhang Yalei et al, carbon emission reduction in wastewater treatment air-lift circulation microalgae autotrophic-heterotrophic coupling photobioreactor [ P ]. China: CN 101838606B, 2013.01.02).
Zhao Qinghua and the like, the invention relates to a process system for flue gas purification and carbon emission reduction, which comprises a treatment box with water inside and a retreatment box with alkali liquor inside, wherein dust solid particles in flue gas are firstly dissolved in water, then acidic gas in the flue gas is neutralized by the alkali liquor and carbon dioxide gas is absorbed, a water circulation box is arranged, the water inside is recycled, and a large amount of water is saved (Zhao Qinghua and the like, a process system for flue gas purification and carbon emission reduction [ P ] China: CN 2158461U, 2022.02.18).
The invention relates to a carbon emission reduction wastewater treatment system, which comprises a treatment tank, a wastewater tank and a chlorine ion removal mediation tank, and reduces carbon emission while realizing sewage purification through an internal operation mode. (Wangxiangjun et al, a carbon emission reduction wastewater treatment system [ P ]. China: CN 215855297U, 2022.02.18).
The Xuxin and the like invent a carbon emission reduction sewage treatment system, and the carbon emission is reduced while sewage is treated by large-area utilization of photosynthesis of plants by enabling pretreated sewage to flow into a water pipe or a water tank or a planting frame full of plants. (xuxin et al, a carbon abatement wastewater treatment system [ P ]. China: CN 215440084U, 2022.01.07).
The existing integrated sewage treatment technology and equipment have the following defects:
(1) the existing integrated sewage treatment equipment has generally high energy consumption, so that the later-stage operation cost is high, and the integrated sewage treatment equipment is not suitable for being used in economic laggard areas.
(2) The existing integrated sewage treatment equipment basically has no deodorization measure, and the greenhouse gas CO mainly generated in the anaerobic-anoxic-aerobic section 2 And odor, which causes a certain pollution to the air around the equipment.
(3) The existing integrated sewage treatment equipment mostly adopts conventional processes such as a biochemical method and the like, the treatment effect in winter is poor, and the quality fluctuation of effluent is large.
(4) The existing integrated sewage treatment equipment has weak deamination capability and high effluent nitrogen concentration, and is easy to cause eutrophication of surrounding water bodies.
In order to solve the problems, a carbon emission reduction integrated sewage treatment device and technology are provided.
Disclosure of Invention
The invention aims to: in order to solve the problems, an integrated sewage treatment device and technology which have strong denitrification capability and reduce carbon emission are provided.
The technical scheme adopted by the invention is as follows:
the utility model provides a carbon emission reduction integration sewage treatment device and technique, includes regional one, regional two, regional three and regional four, regional one includes anaerobism denitration pond, oxygen deficiency denitrogenation pond, good oxygen many medium biomembrane pond and baffling sedimentation tank in advance, regional two includes between the PLC autonomous plant, regional three includes ecological carbon reduction pond, regional four includes between the solar power plant, anaerobism denitration pond includes inlet tube, electromagnetism flow divider one and microbubble strip agitating unit in advance, the one end of inlet tube extends into the inside of anaerobism denitration pond, and the other end extends to the outside of anaerobism denitration pond in advance, oxygen deficiency denitrogenation pond includes electromagnetism flow divider two and strip agitating unit one, good oxygen many medium biomembrane pond includes spherical suspended filler, honeycomb suspended filler, baffle, water inlet and cloth water pipeline, compound filler and aeration equipment, the aeration device is arranged at the bottom end of the aerobic multi-medium biomembrane pond, the composite filler is laid above the aeration device, the baffle is fixedly connected to the upper end of the inner wall of the aerobic multi-medium biomembrane pond, the anoxic denitrification pond and the aerobic multi-medium biomembrane pond are communicated through the water inlet and distribution pipeline, one end of the nitrifying liquid return pipe extends into the anaerobic pre-denitrification pond, the other end of the nitrifying liquid return pipe passes through the anoxic denitrification pond and then extends into the aerobic multi-medium biomembrane pond, the first electromagnetic diverter valve is arranged at the position where the nitrifying liquid return pipe is close to the outer surface of one end of the anaerobic pre-denitrification pond, and the second electromagnetic diverter valve is arranged at the position where the nitrifying liquid return pipe is close to the outer surface of one end of the anoxic denitrification pond.
In a preferred mode of the invention, the baffling sedimentation tank comprises a baffling baffle plate, a sludge discharge pipe and a chemical feeding pipe, the baffling baffle plate is fixedly connected to the inner wall of the baffling sedimentation tank, and the sludge discharge pipe and the chemical feeding pipe are arranged on the outer surface of the baffling sedimentation tank.
In a preferred invention mode, the PLC automatic control equipment room includes a first storage battery pack, an aeration fan, a nitrification liquid reflux pump, a lift pump, a dosing barrel and a PLC intelligent control cabinet, a second stripping and stirring device is disposed inside the dosing barrel, an electromagnetic flow pump is disposed on the outer surface of the upper end of the dosing barrel, and the output end of the first storage battery pack is electrically connected with the first storage battery pack, the aeration fan, the nitrification liquid reflux pump, the lift pump, the dosing barrel, the PLC intelligent control cabinet and the electromagnetic flow pump.
In a preferred mode of the invention, the ecological carbon reduction pond comprises a gas distribution pipe, aquatic plants, fillers and benthos.
In a preferred invention mode, the baffle plate divides the inner cavity of the aerobic multi-medium biomembrane pool into two parts, the spherical suspended filler is arranged in the inner cavity at the left end of the aerobic multi-medium biomembrane pool, and the honeycomb suspended filler is arranged in the inner cavity at the right end of the aerobic multi-medium biomembrane pool.
In a preferred invention mode, the solar power equipment room comprises a gas collecting hood, a suction fan, a blower, a gas collecting bottle, a storage battery pack II, a photovoltaic solar system and a pipeline type ultraviolet sterilizer, the gas collecting hood is arranged in the first region, the gas collecting hood is communicated with the gas collecting bottle through a pipeline, and an inner cavity of the gas collecting bottle is communicated with the gas distribution pipe through a pipeline.
In a preferred mode of the invention, the suction fan is arranged on the outer surface of the pipeline between the gas collecting hood and the gas collecting bottle, and the blower is arranged on the outer surface of the pipeline between the gas collecting bottle and the gas distribution pipe.
In a preferred invention, the output end of the photovoltaic solar system is electrically connected to the second storage battery pack and the first storage battery pack, and the output end of the second storage battery pack is electrically connected to the suction fan, the blower and the input end.
In a preferred invention mode, the output end of the PLC intelligent control cabinet is electrically connected to the first electromagnetic flow divider, the second electromagnetic flow divider, the aeration fan, the nitrifying liquid reflux pump, the lift pump, the electromagnetic flow pump, the suction fan, the blower and the pipeline type ultraviolet sterilizer.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. in the invention, the multi-medium biomembrane technology and the ecological pond are combined and optimized, and the integrated sewage treatment equipment and technology which can self-supply energy consumption and reduce carbon emission are obtained through unique design and structural layout.
2. According to the invention, by means of the anaerobic pre-denitrification-anoxic denitrification-aerobic multi-medium biomembrane-gravity precipitation-ecological carbon reduction tank, the return flow of the nitrifying liquid is accurately controlled, the anaerobic-anoxic state is not destroyed, the maximum denitrification is realized, the sludge yield is low, a sludge return system is not needed, the energy consumption equipment is few, the sludge yield is reduced while the energy consumption is saved, the post-sludge treatment cost is reduced, and the operation and maintenance cost is low.
3. In the invention, the integrated sewage treatment equipment using clean energy is adopted, and solar energy is recycled, so that the energy self-sufficiency of the integrated sewage treatment equipment is realized.
4. In the invention, the self-sufficient energy source integrated sewage equipment does not need external energy sources, is suitable for being used in regions such as rural areas where economy is not achieved, has low operation and maintenance cost, and is green and sustainable.
5. According to the invention, the concentration of biomass in the multi-medium biomembrane pond is high, the structural design of the double-layer multi-reaction zone of the multi-medium biomembrane pond and the air-closed design of the biochemical reaction zone can play a certain heat preservation role, and the stable and standard-reaching of the effluent quality can be realized in winter.
Drawings
FIG. 1 is a schematic view of a process section of the present invention;
FIG. 2 is a detailed process diagram of the present invention;
FIG. 3 is a structural area diagram of the present invention;
FIG. 4 is a diagram showing the effect of domestic sewage treatment in the middle test of the present invention.
The labels in the figure are: 1-anaerobic pre-denitrification tank, 2-anoxic denitrification tank, 3-aerobic multi-medium biomembrane tank, 4-baffling sedimentation tank, 5-PLC automatic control equipment room, 6-solar power equipment room, 7-ecological carbon reduction tank, 11-water inlet pipe, 12-electromagnetic diverter valve I, 13-micro-bubble stripping stirring device, 21-electromagnetic diverter valve II, 22-stripping stirring device I, 23-nitrifying liquid reflux pipe, 31-spherical suspension filler, 32-honeycomb suspension filler, 33-baffle, 34-water inlet and distribution pipeline, 35-composite filler, 36-aeration device, 41-baffling baffle, 42-sludge discharge pipe, 43-medicine feeding pipe, 51-storage battery pack I, 52-aeration fan, 53-nitrifying liquid reflux pump, 54-a lifting pump, 55-a medicine adding barrel, 56-a PLC intelligent control cabinet, 57-an electromagnetic flow pump, 58-a steam stripping stirring device II, 61-a gas collecting hood, 62-a suction fan, 63-a blower, 64-a gas collecting bottle, 65-a storage battery group II, 66-a photovoltaic solar system, 67-a pipeline type ultraviolet sterilizer, 71-a gas distribution pipe, 72-aquatic plants, 73-a filler and 74-benthos.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A detailed description will be given below of a carbon emission reduction integrated sewage treatment apparatus and technology according to an embodiment of the present invention with reference to fig. 1 to 4.
With reference to figures 1-4 of the drawings,
example (b):
a carbon emission reduction integrated sewage treatment device and technology is disclosed, and reference is made to fig. 1-3, and the device and technology comprises a first area, a second area, a third area and a fourth area, wherein the device and technology is divided into an upper layer and a lower layer, the upper layer and the lower layer are respectively divided into two areas, the first area is a gas-closed biochemical reaction area, the second area is a PLC intelligent control area, the third area is an open ecological carbon reduction pool area, and the fourth area is a photovoltaic solar area; the first region comprises an anaerobic pre-denitrification tank 1 and a defectThe oxygen denitrification tank 2, the aerobic multi-medium biomembrane tank 3 and the baffling sedimentation tank 4, the anaerobic pre-denitrification tank 1, the anoxic denitrification tank 2, the aerobic multi-medium biomembrane tank 3 and the baffling sedimentation tank 4 form an integral closed space, and the anaerobic-anoxic tank generates a greenhouse gas CH 4 And CO 2 The aerobic multi-medium biomembrane pool mainly generates greenhouse gas CO 2 (ii) a Regional two includes between PLC autonomous device 5, regional three includes ecological carbon reduction pond 7, regional four includes between solar power plant 6, anaerobism is denitration pond 1 in advance including inlet tube 11, electromagnetism flow divider 12 and microbubble strip agitating unit 13, the one end of inlet tube 11 extends into the inside of anaerobism denitration pond 1 in advance, the other end extends to the outside of anaerobism denitration pond 1 in advance, sewage gets into 1 pond by submergence formula inlet tube 11, adopt submergence formula inlet tube mainly to prevent gaseous by the inlet tube loss, electromagnetism flow divider 12 accurate control reflux 10% ~ 50% concrete reflux proportion reachs by the field test, adopt microbubble strip agitating unit 13 and electromagnetism flow divider 12 accurate control nitration liquid reflux, so that realize denitration in advance under the anaerobic condition that does not destroy the anaerobism pond, strengthen the denitrogenation ability of equipment.
Referring to fig. 1-3, the anoxic denitrification tank 2 comprises a second electromagnetic diverter valve 21 and a first stripping stirring device 22, sewage automatically flows into the anoxic denitrification tank 2 from the anaerobic pre-denitrification tank 1, and the sewage is uniformly mixed under the action of the first stripping stirring device 22; the aerobic multi-medium biomembrane pond 3 comprises spherical suspended fillers 31, honeycomb suspended fillers 32, a baffle 33, a water inlet and distribution pipeline 34, a composite filler 35 and an aeration device 36, the anoxic denitrification pond 2 is communicated with the aerobic multi-medium biomembrane pond 3 through the water inlet and distribution pipeline 34, sewage in the anoxic denitrification pond 2 automatically flows into the aerobic multi-medium biomembrane pond 3 through the water inlet pipe 34, and the aeration device 36 can strengthen the nitrification process and the stirring function of the aerobic multi-medium biomembrane pond 3; the aeration device 36 is arranged at the bottom end of the aerobic multi-medium biomembrane pond 3, the composite filler 35 is laid above the aeration device 36, the composite filler 35 consists of 80% of limestone with the particle size of 15mm and 20% of sludge-based biochar with the particle size of 2.5mm, and can play a role similar to an aeration biological filter tank, the aerobic biomembrane filter layer and a small part of anaerobic biomembrane filter layer are arranged, the limestone and sludge-based biochar filler play a role in preliminarily purifying and intercepting part of suspended matters and some fine particles, and the mixed filler can slowly release a small amount of carbon source to strengthen the denitrification process.
Referring to fig. 1 and 4, a baffle 33 is fixedly connected to the upper end of the inner wall of the aerobic multi-medium biomembrane pool 3, the baffle 33 divides the inner cavity of the aerobic multi-medium biomembrane pool 3 into two parts, a spherical suspended filler 31 is arranged in the inner cavity of the left end of the aerobic multi-medium biomembrane pool 3, a honeycomb suspended filler 32 is arranged in the inner cavity of the right end of the aerobic multi-medium biomembrane pool 3, sewage automatically flows up to 2 MBBR movable biomembrane reactor reaction regions which are horizontally separated by a composite filler layer 35, namely a spherical suspended filler region and a honeycomb suspended filler region, and microorganisms attached to the suspended fillers 31 and 32 in the 2 MBBR reaction regions which are completely separated by the baffle 33 on the upper layer further purify the sewage, so that ammonia nitrogen in the sewage is removed to the maximum extent; one end of a nitrifying liquid return pipe 23 extends into the anaerobic pre-denitrification tank 1, the other end of the nitrifying liquid return pipe 23 extends into the aerobic multi-media biomembrane tank 3 after penetrating through the anoxic denitrification tank 2, a first electromagnetic diverter valve 12 is arranged on the outer surface of one end of the nitrifying liquid return pipe 23 close to the anaerobic pre-denitrification tank 1, a second electromagnetic diverter valve 21 is arranged on the outer surface of one end of the nitrifying liquid return pipe 23 close to the anoxic denitrification tank 2, the nitrifying liquid is accurately controlled by the electromagnetic diverter valve 21 to have a specific reflux ratio of 50-150 percent, which is obtained by field tests, the nitrifying liquid returned from the anoxic denitrification tank 2 can strengthen the integral nitrogen and phosphorus removal capability of the system, and the multi-media biomembrane technology is combined and optimized with the ecological pond, and through unique design and structural layout, an integrated sewage treatment device and technology which can achieve self-sufficiency in energy consumption and reduce carbon emission are obtained.
Referring to fig. 1 and 4, the baffling sedimentation tank 4 comprises a baffling baffle 41, a sludge discharge pipe 42 and a chemical feeding pipe 43, the baffling baffle 41 is fixedly connected on the inner wall of the baffling sedimentation tank 4, the sludge discharge pipe 42 and the chemical feeding pipe 43 are arranged on the outer surface of the baffling sedimentation tank 4, the PLC automatic control equipment room 5 comprises a first storage battery pack 51 and an aeration fan 52, the sewage in the aerobic multi-medium biomembrane pond 3 automatically flows into the baffling sedimentation pond 4, the PAC solution in the dosing bucket 55 is uniformly stirred by a second stripping stirring device 58, gas is provided by an aeration fan 52, the PAC solution is extracted by an electromagnetic flow pump 57 and then is dripped by a dosing pipe 43, the PAC solution and the incoming water of the aerobic pond enter the sedimentation pond 4, the PAC solution and the incoming water of the aerobic pond are flocculated and precipitated to the bottom of the pond to play roles of removing phosphorus and reducing SS, and the precipitated sludge is periodically discharged by a sludge discharge pipe 42; through the anaerobic pre-denitrification-anoxic denitrification-aerobic multi-medium biomembrane-gravity precipitation-ecological carbon reduction tank, the return flow of the nitrifying liquid is accurately controlled, the anaerobic-anoxic state is not damaged, the maximum denitrification is realized, the sludge yield is low, a sludge return system is not needed, energy consumption equipment is less, the sludge yield is reduced while the energy consumption is saved, the later-stage sludge treatment cost is reduced, and the operation and maintenance cost is low.
Referring to fig. 1-3, a second stripping and stirring device 58 is arranged inside the dosing barrel 55, an electromagnetic flow pump 57 is arranged on the outer surface of the upper end of the dosing barrel 55, the output end of the first storage battery 51 is electrically connected with the first storage battery 51, the aeration fan 52, the nitrified liquid reflux pump 53, the lifting pump 54, the dosing barrel 55, the PLC intelligent control cabinet 56 and the electromagnetic flow pump 57, and the ecological carbon-reducing CO is obtained 2 The pool 7 comprises an air distribution pipe 71, aquatic plants 72, fillers 73 and benthos 74, and the sewage in the baffled sedimentation tank 4 is lifted to ecological carbon reduction CO by a lifting pump 54 2 In the pool 7, the sewage is further purified by the combined action of the aquatic plants 72, namely the golden fish algae and the dwarf cold-resistant tape grass, the filler layer 73, the limestone with the particle size of 15mm and the benthos 74, namely the shells and the snails.
Referring to fig. 1-3, the solar power plant room 6 includes a gas collecting hood 61, a suction fan 62, a blower 63, a gas collecting bottle 64, a second battery pack 65, a photovoltaic solar system 66 and a duct type ultraviolet sterilizer 67, and the ecological carbon reduction CO 2 Sewage in the tank 7 automatically flows into the pipeline type ultraviolet sterilizer 67 and is discharged after being sterilized; the gas collecting hood 61 is arranged in the first region, the gas collecting hood 61 is communicated with the gas collecting bottle 64 through a pipeline, the inner cavity of the gas collecting bottle 64 is communicated with the gas distribution pipe 71 through a pipeline, the suction fan 62 is arranged on the outer surface of the pipeline between the gas collecting hood 61 and the gas collecting bottle 64, the blower 63 is arranged on the outer surface of the pipeline between the gas collecting bottle 64 and the gas distribution pipe 71, and the design can enable the anaerobic pre-denitrification tank 1, the anoxic denitrification tank 2,Greenhouse gas CH generated by the aerobic multi-medium biomembrane tank 3 and the baffling sedimentation tank 4 4 And CO 2 And the air is uniformly sucked into the air collecting bottle 64 for storage through the air collecting hood 61 by the suction fan 62, and then slowly sent into the ecological carbon-reducing CO through the air distribution pipe 71 by the blower 63 2 The bottom of the pool 7 plays the roles of aeration and oxygenation to further improve the dissolved oxygen of the water body, but the main purpose is to send the greenhouse gas generated by the integrated equipment into ecological carbon reduction CO 2 A pool 7 for generating oxygen (CO) by using greenhouse gas consumed by photosynthesis of aquatic plants 2 +H 2 0→O 2 +C 6 H 12 O 6 ) Not only has the function of reducing carbon emission, but also prepares oxygen and fructose, consumes greenhouse gases and equipment odor, and simultaneously produces fructose (C) 6 H 12 O 6 ) And a carbon source can be provided for the subsequent denitrification of the discharged sewage, so that the nitrogen concentration of the water discharged from the integrated equipment can be continuously reduced.
Referring to fig. 1 to 3, the output end of the photovoltaic solar system 66 is electrically connected to the second storage battery pack 65 and the first storage battery pack 51, and the electric energy generated by the photovoltaic solar system 66 is stored in the second storage battery pack 51 and the first storage battery pack 65; the output end of the second storage battery pack 65 is electrically connected with the input ends of the suction fan 62 and the air blowers 63 and 67, the output end of the PLC intelligent control cabinet 56 is electrically connected with the first electromagnetic shunt valve 12, the second electromagnetic shunt valve 21, the aeration fan 52, the nitrifying liquid reflux pump 53, the lifting pump 54, the electromagnetic flow pump 57, the suction fan 62, the air blower 63 and the pipeline type ultraviolet sterilizer 67, and the electromagnetic shunt valve 12, the electromagnetic shunt valve 21, the aeration fan 52, the nitrifying liquid reflux pump 53, the lifting pump 54, the PLC intelligent control cabinet 56, the electromagnetic flow pump 57, the suction fan 62, the air blower 63 and the pipeline type ultraviolet sterilizer 67 are all powered by the battery pack 51 and the storage battery pack 65 without additional electric energy supply; the integrated sewage treatment equipment adopting clean energy resources realizes self-supply of the energy resources of the integrated sewage treatment equipment by separately utilizing solar energy, is suitable for being used in regions such as rural areas where economy is not achieved, and is low in operation and maintenance cost and green and sustainable.
The application of the carbon emission reduction integrated sewage treatment equipment and the technical embodiment comprises the following implementation principles:
sewage enters the anaerobic pre-denitration tank 1 from the immersed water inlet pipe 11, the immersed water inlet pipe is adopted to mainly prevent gas from escaping from the water inlet pipe, the sewage is uniformly mixed under the action of the micro-bubble stripping stirring device 13, nitrified liquid is pumped into the nitrified liquid return pipe 23 from the return pump 53, then the return flow is accurately controlled by the electromagnetic diverter valve 12 by 10-50% (the specific return flow proportion is obtained by field tests), the micro-bubble stripping stirring device 13 and the electromagnetic diverter valve 12 are adopted to accurately control the return flow of the nitrified liquid, and the main purpose is to realize pre-denitration without destroying the anaerobic state of the anaerobic tank and strengthen the denitrification capability of equipment; sewage automatically flows into an anoxic denitrification tank 2 from an anaerobic pre-denitrification tank 1, the sewage is uniformly mixed under the action of a stripping stirring device I22, the reflux quantity of nitrified liquid is accurately controlled by 50-150 percent through an electromagnetic diverter valve 21 (the specific reflux proportion is obtained through field tests), and the reflux nitrified liquid in the tank 2 mainly enhances the integral denitrification and dephosphorization capability of the system; the sewage in the anoxic denitrification tank 2 automatically flows into the aerobic multi-medium biomembrane tank 3 through a water inlet pipe 34, the aeration device 36 is arranged at the bottom layer of the aerobic multi-medium biomembrane tank 3 to reinforce the nitrification process and the stirring function of the aerobic multi-medium biomembrane tank 3, the composite filler 35 (80% of limestone, 15mm of particle size, 20% of sludge-based biochar, 2.5mm of particle size) is arranged at the bottom layer, the composite filler layer 35 at the bottom layer plays a role similar to an aeration biofilter, the aerobic multi-part anaerobic biomembrane filter layer is arranged, and the limestone and sludge-based biochar filler play a role in primarily purifying and intercepting part of suspended matters and some fine particles and providing a part of carbon source for reinforcing the denitrification process.
The sewage automatically flows to 2 MBBR (movable biofilm reactors) reaction areas which are horizontally separated from each other, namely a spherical suspended filler area and a honeycomb suspended filler area from a composite filler layer 35, and microorganisms attached to suspended fillers 31 and 32 in the 2 MBBR reaction areas which are completely separated from each other by a baffle 33 on the upper layer further purify the sewage, so that ammonia nitrogen in the sewage is removed to the maximum extent; sewage in the aerobic multi-medium biomembrane pool 3 automatically flows into the baffling sedimentation pool 4, PAC solution in the medicine adding barrel 55 is uniformly stirred by a second stripping stirring device 58, gas is provided by an aeration fan 52, the PAC solution is extracted by an electromagnetic flow pump 57 and then is dripped by a medicine adding pipe 43, the PAC solution and the water coming from the aerobic pool enter the sedimentation pool 4, the mixed solution is flocculated and precipitated to the bottom of the pool to play the roles of removing phosphorus and reducing SS, and precipitated sludge is periodically discharged by a sludge discharge pipe 42.
The sewage in the baffling sedimentation tank 4 is lifted to an ecological carbon reduction tank 7 by a lifting pump 54, and the sewage is further purified under the combined action of aquatic plants 72 (golden fish algae, dwarf cold-resistant tape grass), a packing layer 73 (limestone with the particle size of 15 mm) and benthos 74 (shells and snails); the sewage in the ecological carbon reduction tank 7 automatically flows into the pipeline type ultraviolet sterilizer 67 and is discharged after being sterilized. No matter the temperature is low in winter or high in summer, the discharged water quality is far superior to the first-class A discharge standard of pollutant discharge standard of urban sewage treatment plant (GB 18918-. The water quality monitoring of the inlet water and the outlet water of the pilot test device is from 7 months in 2021 to 4 months in 2022, the water undergoes the impact of high temperature in summer and low temperature in winter, and TN and NH of the inlet water and the outlet water 3 -N, TP and CODC r The concentration variation is shown in detail in FIG. 4.
The anaerobic pre-denitrification tank 1, the anoxic denitrification tank 2, the aerobic multi-medium biomembrane tank 3 and the baffling sedimentation tank 4 form an integral closed space, and the anaerobic-anoxic tank generates a greenhouse gas CH 4 And CO 2 The aerobic multi-medium biomembrane pool mainly generates greenhouse gas CO 2 The design can lead the greenhouse gas CH generated by the anaerobic pre-denitrification tank 1, the anoxic denitrification tank 2, the aerobic multi-medium biomembrane tank 3 and the baffling sedimentation tank 4 to be 4 And CO 2 And the like, the air is uniformly sucked into a gas collecting bottle 64 by a suction fan 62 through a gas collecting hood 61 for storage, and then is slowly sent to the bottom of the ecological carbon reduction pool 7 through an air distribution pipe 71 by a blower 63 to achieve the purposes of aeration and oxygenation and further improve the dissolved oxygen of the water body, but the main purpose is to send the greenhouse gas generated by the integrated equipment into the ecological carbon reduction pool 7, so that the greenhouse gas is consumed by the photosynthesis of the aquatic plants to generate oxygen, the carbon emission reduction effect is achieved, the oxygen is also prepared, and the equipment deodorization effect is achieved while the greenhouse gas is consumed.
TYBM ② -Carbon (CO) 2 ) The device and the technology for the emission reduction integrated sewage treatment are characterized in that a photovoltaic solar system 66 generates electric energy and stores the electric energy to a storage battery pack 51 and a storage battery pack 65, an electromagnetic shunt valve 12, an electromagnetic shunt valve 21, an aeration fan 52, a nitrifying liquid reflux pump 53, a lifting pump 54, a PLC intelligent control cabinet 56 and electricityThe magnetic flow pump 57, the suction fan 62, the blower 63 and the tubular ultraviolet sterilizer 67 are all powered by the battery pack 51 and the battery pack 65 without additional power supply. The microbubble stripping and stirring device 13, the first stripping and stirring device 22, the aeration device 36 and the second stripping and stirring device 58 are all supplied with air by the aeration fan 52. The composite filler 35 (80% limestone, particle size 15 mm; 20% sludge-based biochar, particle size 2.5mm) is formed by carbonizing residual sludge of a sewage plant for 2 hours at 550 ℃ in the absence of oxygen after being dehydrated and dried, wherein the filling height of the composite filler is 1/3% of the height of the aerobic multi-medium biofilm tank 3, the sludge-based biochar filler with particle size 2.5mm is ground and sieved, the filling space of the spherical suspension filler 31 (particle size 50mm) accounts for 10% of the whole space of the aerobic multi-medium biofilm tank 3, and the filling space of the honeycomb suspension filler 32 (phi 20mm, thickness 8mm) accounts for 10% of the whole space of the aerobic multi-medium biofilm tank 3. Adding PAC (AL203 content 28%) in a sedimentation tank: the PAC amount was about 1.68kg per 100 tons of water consumed. The filling material in the ecological carbon reduction pool 7 is limestone with the grain diameter of 15mm, the filling height is 20 percent of the running water depth of the ecological carbon reduction pool, the aquatic plants adopt golden fish algae and cold-resistant tape grass, the benthonic animals select shells and snails, and the ecological chain and the abundance of aquatic species in the pool 7 are improved. All water pumps, fans, electromagnetic valves, ultraviolet disinfectors and other electrical equipment are controlled by a PLC intelligent control cabinet 56.
TYBM ② -Carbon (CO) 2 ) The emission reduction integrated sewage treatment pilot test device has the advantages that during the test, the sewage treatment effect is good, the effluent stably reaches the standard, the quality of the annual discharged water reaches the first-class A emission standard of pollutant emission standard of urban sewage treatment plant (GB 18918 + 2002), the water quality detection result during the pilot test (7 months early in 2021-4 months late in 2022) is shown in Table 1, and the change of the pollutant concentration is shown in FIG. 4. The device does not need a specially-attended person, is simple to operate, does not consume extra electric energy due to solar power supply, does not have odor, does not release oxygen while reducing emission of carbon, and is green and environment-friendly.
TABLE 1 Pilot test contamination concentration Change Table Unit mg. L -1
| Item | TN | NH 3 -N | TP | COD Cr |
| Inflow water | 30.13 | 24.44 | 3.02 | 105.90 |
| Effluent of the sedimentation tank | 16.38 | 6.92 | 0.41 | 20.41 |
| Effluent of ecological carbon reduction pool | 14.76 | 4.71 | 0.33 | 15.79 |
| Total removal rate | 51.45 | 83.42 | 87.95 | 83.39 |
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will 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 (9)
1. The utility model provides a carbon emission reduction integration sewage treatment device and technique, includes regional one, regional two, regional three and regional four, its characterized in that: regional one includes anaerobism denitration pond (1), oxygen deficiency denitrogenation pond (2), good oxygen many medium biomembrane pond (3) and baffling sedimentation tank (4) in advance, regional two include PLC autonomous system room (5), regional three is including ecological carbon reduction pond (7), regional four is including solar power plant room (6), anaerobism denitration pond (1) in advance includes inlet tube (11), electromagnetism flow divider (12) and microbubble strip agitating unit (13), the one end of inlet tube (11) extends into the inside of anaerobism denitration pond (1), the other end extends to the outside of anaerobism denitration pond (1) in advance, oxygen deficiency denitrogenation pond (2) are including electromagnetism flow divider two (21) and strip agitating unit (22), good oxygen many medium biomembrane pond (3) are including spherical suspension filler (31), honeycomb suspension filler (32), Baffle (33), the bottom of good oxygen many medium biomembrane pond (3) of intaking and water distribution line (34), composite filler (35) and aeration equipment (36), aeration equipment (36) set up the bottom of good oxygen many medium biomembrane pond (3), laid the top of aeration equipment (36) compound filler (35), the inner wall upper end fixedly connected with of good oxygen many medium biomembrane pond (3) baffle (33), oxygen deficiency denitrogenation pond (2) with good oxygen many medium biomembrane pond (3) pass through intake and water distribution line (34) communicate, the one end of nitration liquid back flow (23) extends into the inside of anaerobism denitration pond (1) in advance, the other end of nitration liquid back flow (23) passes extend into behind oxygen deficiency denitrogenation pond (2) the inside of good oxygen many medium biomembrane pond (3), electromagnetism flow divider valve (12) set up nitration liquid back flow (23) is close to anaerobism liquid back flow (23) in advance the outside of denitration pond (1) in advance And the second electromagnetic flow dividing valve (21) is arranged on the outer surface of one end of the nitrifying liquid return pipe (23) close to the anoxic denitrification tank (2).
2. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 1, wherein: baffling sedimentation tank (4) are including baffling baffle (41), mud pipe (42) and dosing pipe (43), baffling baffle (41) fixed connection be in on the inner wall of baffling sedimentation tank (4), mud pipe (42) with dosing pipe (43) set up on the surface of baffling sedimentation tank (4).
3. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 2, wherein: PLC autonomous device room (5) are including storage battery (51), aeration fan (52), nitrify liquid backwash pump (53), elevator pump (54), add medicine bucket (55) and PLC intelligent control cabinet (56), the inside of adding medicine bucket (55) is provided with strip agitating unit two (58), the upper end surface of adding medicine bucket (55) is provided with electromagnetic flow pump (57), just the output of storage battery (51) with storage battery (51) aeration fan (52) nitrify liquid backwash pump (53) elevator pump (54) add medicine bucket (55) PLC intelligent control cabinet (56) with electromagnetic flow pump (57) electric connection.
4. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 3, wherein: the ecological Carbon (CO) reduction 2 ) The pool (7) comprises an air distribution pipe (71), aquatic plants (72), filling materials (73) and benthos (74).
5. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 4, wherein: the baffle (33) divides the inner cavity of the aerobic multi-medium biomembrane pool (3) into two parts, the spherical suspended filler (31) is arranged in the inner cavity at the left end of the aerobic multi-medium biomembrane pool (3), and the honeycomb suspended filler (32) is arranged in the inner cavity at the right end of the aerobic multi-medium biomembrane pool (3).
6. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 5, wherein: solar power equipment room (6) are including gas collecting channel (61), suction fan (62), forced draught blower (63), gas collecting bottle (64), storage battery two (65), photovoltaic solar energy system (66) and pipeline formula ultraviolet disinfector (67), gas collecting channel (61) set up regional one inside, gas collecting channel (61) through the pipeline with gas collecting bottle (64) are linked together, the inside appearance chamber of gas collecting bottle (64) through the pipeline with gas distribution pipe (71) are linked together.
7. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 6, wherein: the suction fan (62) is arranged on the outer surface of the pipeline between the gas collecting hood (61) and the gas collecting bottle (64), and the blower (63) is arranged on the outer surface of the pipeline between the gas collecting bottle (64) and the gas distribution pipe (71).
8. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 7, wherein: the output of photovoltaic solar energy system (66) with storage battery two (65) and storage battery one (51) electric connection, just the output of storage battery two (65) with suction fan (62) forced draught blower (63) with the input electric connection of (67).
9. The carbon emission reduction integrated sewage treatment equipment and technology as claimed in claim 7, wherein: the output of PLC intelligent control cabinet (56) with electromagnetism flow divider valve (12) two (21) electromagnetism flow divider valve aeration fan (52) nitrify liquid reflux pump (53) elevator pump (54) electromagnetism flow pump (57) suction fan (62) forced draught blower (63) with pipeline formula ultraviolet disinfector (67) electric connection.
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| CN113912248A (en) * | 2021-10-12 | 2022-01-11 | 安徽省通源环境节能股份有限公司 | Composite process treatment system suitable for rural domestic sewage |
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| CN113912248A (en) * | 2021-10-12 | 2022-01-11 | 安徽省通源环境节能股份有限公司 | Composite process treatment system suitable for rural domestic sewage |
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| CN116177746A (en) * | 2023-04-18 | 2023-05-30 | 中国市政工程华北设计研究总院有限公司 | Low-carbon-emission septic tank and sewage treatment process thereof |
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Address after: No. 3966, Qimen Road, Baohe District, Hefei City, Anhui Province, 230000 Applicant after: ANHUI TONGYUAN ENVIRONMENT ENERGY SAVING Co.,Ltd. Address before: 230000, no.856, Jinzhai South Road, Baohe District, Hefei City, Anhui Province Applicant before: ANHUI TONGYUAN ENVIRONMENT ENERGY SAVING Co.,Ltd. |