CN211635954U - Effluent water sump adds lid tail gas purification deodorizing device - Google Patents
Effluent water sump adds lid tail gas purification deodorizing device Download PDFInfo
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- CN211635954U CN211635954U CN201921243170.7U CN201921243170U CN211635954U CN 211635954 U CN211635954 U CN 211635954U CN 201921243170 U CN201921243170 U CN 201921243170U CN 211635954 U CN211635954 U CN 211635954U
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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
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a sewage pond adds lid tail gas purification deodorizing device. The odor involved by the cover of the sewage pool has the characteristics of complex components, low concentration, wide waste gas source, strong odor source of each processing unit, similar components and the like, so that the difficulty of the subsequent deodorization process is increased. The utility model comprises an integrated electric-biological filter module. The integrated electro-biological filter module comprises a filter tower body, a bioelectrochemical reaction unit, a biological filler circulation unit and a demister. Electrolyte solution is arranged in the filtering tower body. The bioelectrochemical reactor comprises an anode plate, a cathode plate, two drainage plates and two partition plate groups. The biological filler circulating unit comprises a biological medium filler, a spray pipe and a circulating pump. The integrated electro-biological filter tower can be used for screening dominant strains in solution through the additional electrode.
Description
Technical Field
The utility model belongs to the technical field of the effluent water sump adds lid tail gas clean-up deodorization, concretely relates to effluent water sump adds lid tail gas clean-up deodorization device.
Background
The capped tail gas of the sewage tank is mainly derived from treatment units (mainly comprising treatment units such as an adjusting tank, a lifting well, an air flotation tank, a primary sedimentation tank, a water collecting tank, a sludge storage tank, a sludge concentration tank, a sludge dewatering room and the like) of an enterprise sewage treatment station, and in the running treatment process of the waste water, malodorous gas (mainly comprising hydrogen sulfide, ammonia and other complex components which can generate malodorous smell) is generated by the units more or less respectively, and particularly, the malodorous of parts (the water collecting well) of the water inlet part, the sludge treatment part and the like (the concentration tank) is serious. The sewage is decayed in the conveying process, and a large amount of generated malodorous gases such as hydrogen sulfide and the like are released among the grids; in addition, the organic content in the grid slag is as high as 85%, and after little grid slag is decayed, strong stink can be generated in a large space. The sludge treatment part is also a unit with serious odor, and because the hydraulic retention time of the sludge treatment is long, a large amount of odor-causing substances are generated by anaerobic fermentation of the sludge.
The waste water produced in the production process is rich in organic nutrient substances, and under the environmental conditions of proper temperature, humidity, oxygen content and the like, the large amount of organic nutrient substances mainly produce amines (methylamine, trimethylamine and the like) with fishy smell, ammonia with ammonia smell, diamines (NH2(CH2)4NH2) with rotten meat smell, hydrogen sulfide with rotten egg smell, organic sulfides ((CH3)2S) with rotten cabbage smell, methylindole (C8H5NHCH3) with feces smell and other odor components with special taste under the aerobic and facultative, especially under the anaerobic and other conditions in the sewage and sludge treatment process. The malodorous substances produced in the above reactions can cause inappetence, nausea and vomiting, and can directly harm respiratory tract, endocrine system, circulatory system and nervous system. They have the dual properties of atmospheric pollution and harmful gas pollution.
The odor involved by the cover of the sewage pool has the characteristics of complex components (simultaneously containing organic, inorganic, water-soluble, water-insoluble and other substances), low concentration, wide waste gas source, strong odor source of each processing unit, similar components and the like, and the difficulty of the subsequent deodorization process is increased.
Biological deodorization is to utilize the life activity of microorganisms in solid-phase and solid-liquid phase reactors to degrade malodorous components carried in gas flow and convert the malodorous components into simple inorganic substances (such as carbon dioxide, water, inorganic salts and the like) and biomass with low or no odor concentration. The biological deodorization system is similar to a natural process, is usually carried out at normal temperature and normal pressure, only needs to consume power cost for contacting malodorous substances and microorganisms and a small amount of medicament cost for adjusting the nutrient environment during operation, belongs to a resource-saving and environment-friendly technology, and has the advantages of low overall energy consumption, low operation and maintenance cost, and less secondary pollution and cross-medium pollution transfer. In the existing biological deodorization technology, the screening speed of the microbial inoculum is slower, and the treatment efficiency is greatly influenced.
Disclosure of Invention
An object of the utility model is to provide a effluent water sump adds lid tail gas purification deodorizing device.
The utility model discloses an integrative electric biofilter module. The integrated electric biological filter module comprises a filter tower body, a bioelectrochemical reaction unit, a biological filler circulation unit and a demister. Both sides of the bottom of the filter tower body are provided with air inlets. An electrochemical area, a biological filler area and a demisting area which are sequentially arranged from bottom to top are arranged in the filtering tower body. An electrolyte solution is disposed within the electrochemical zone.
The bioelectrochemical reactor comprises an anode plate, a cathode plate, two drainage plates and two partition plate groups. The opposite sides of the two drainage plates are respectively fixed with the tops of two opposite side walls of the electrochemical area in the filter tower body. The two partition plate groups are respectively arranged below the symmetrical surfaces of the two drainage plates. The partition plate group consists of n partition plates. The n partition plates are all arranged in the electrochemical area to form an S-shaped flow passage. The cathode plate and the anode plate both extend into the electrochemical area and are provided with electrolyte solution.
The biological filler circulating unit comprises a biological medium filler, a spray pipe and a circulating pump. The biological medium filler is arranged in the biological filler area of the filter tower body. The biological medium filler is internally provided with a degradation microbial inoculum. The spray pipe is arranged above the biological medium filler. The spray pipe is provided with a plurality of spray ports. The liquid inlet of the spray pipe is connected with the output port of the circulating pump. The input port of circulating pump is connected with the electrochemistry district of straining the tower body. The demister is arranged in a demisting area of the filter tower body. The top of the filtering tower body is provided with a purification exhaust port.
As preferred, the utility model relates to a effluent water sump adds lid tail gas purification deodorizing device still including catching the tower. The capturing tower comprises a water storage layer, a gas inlet layer, a primary dehumidification layer, a primary spray layer, a secondary dehumidification layer, a secondary spray layer and a demisting layer which are sequentially arranged from bottom to top; the gas inlet layer is provided with a gas inlet; the filler of the first-stage dehumidification layer and the second-stage dehumidification layer is one of stainless steel, PP and polytetrafluoroethylene; and the top spraying systems of the first-stage spraying layer and the second-stage spraying layer are internally provided with aqueous solution of inorganic acid. An air outlet is arranged at the top of the demisting layer. The air outlet of the capturing tower is connected with the input ends of the two one-way valves. The output ends of the two one-way valves are respectively connected with one ends of the two first on-off valves. The other ends of the two first on-off valves are respectively connected with two air inlets of the filter tower body.
As preferred, the utility model relates to a effluent water sump adds lid tail gas purification deodorizing device still includes fan and aiutage. The input port of the fan is connected with the purification exhaust port of the filter tower body, and the output port of the fan is connected with the bottom inlet of the exhaust funnel.
Preferably, the cathode electrode plate is arranged in the electrochemical area and positioned at the air inlet of the filter tower body; the anode plate is arranged in the electrochemical area and is positioned in the center of the filter tower body. The anode plate and the cathode plate are respectively communicated with the anode and the cathode of a power supply. A switch is arranged between the anode plate and the power supply. The output voltage of the power supply is 200 mV-1800 mV.
Preferably, the biological medium filler is a mixture of carbon fibers and bamboo carbon fibers.
Preferably, the biomedia filler is volcanic rock biological filler.
Preferably, the degrading bacteria agent is polychlorinated hydrocarbon degrading bacteria or olefin degrading bacteria.
Preferably, the top surface of the drainage plate is obliquely arranged. Two air inlets of the filter tower body correspond to the two partition plate groups respectively. The air inlet of the filter tower body is positioned at the outer side of the corresponding partition plate group. The demister adopts a wire mesh demister.
The utility model has the advantages that:
1. the integrated electro-biological filter tower can be used for screening dominant strains in solution through the additional electrode. The method specifically comprises the following steps: an electrode is additionally arranged in the bioelectrochemical reaction unit, and an electric field generated by the electrode can destroy impurity floras in the solution; in addition, the electric field can dissolve oxygen in water, generate active groups such as hydroxyl free radicals and the like, and can also inhibit the growth of impurity flora. Meanwhile, the electrode accelerates the transfer of electrons in the solution, so that the degradation reaction speed of the waste gas is accelerated. This allows the dominant population that is able to rapidly accept electrons to be screened out. The screened dominant flora is sprayed into the biological trickling filter layer through a circulating spraying system, and the degradation capability of the biological filler layer is enhanced.
2. The utility model discloses a carbon fiber and bamboo carbon fiber's mixture packs as the biological medium, because carbon fiber and bamboo carbon fiber use multi-level multiaspect hollow sphere structure as leading, have great specific surface area, easily hang the membrane, be difficult for droing, and the hydrophilicity is good, and biological activity is high, advantages such as treatment effect is good. The BET test result shows that the adsorption efficiency can reach more than 90 percent aiming at various foul smells. Meanwhile, the carbon fiber and the bamboo carbon fiber cannot cause secondary pollution.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a medium integration electro-biological filtration tower of the present invention;
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a sewage pool capped tail gas purification and deodorization device comprises a capturing tower 1, an integrated electro-biological filter tower 2, a fan 3 and an exhaust funnel 4. The capturing tower 1 comprises a water storage layer, a gas inlet layer, a primary dehumidification layer, a primary spray layer, a secondary dehumidification layer, a secondary spray layer and a demisting layer which are sequentially arranged from bottom to top; the gas inlet layer is provided with a gas inlet; the filler of the first-stage dehumidification layer and the second-stage dehumidification layer is one of stainless steel, PP and polytetrafluoroethylene; and the top spraying systems of the first-stage spraying layer and the second-stage spraying layer are internally provided with aqueous solution of inorganic acid. The demisting layer is used for removing water vapor brought out after treatment; an air outlet is arranged at the top of the demisting layer.
As shown in fig. 1 and 2, the integrated electro-biological filter tower 2 comprises a filter tower body 2-1, a bioelectrochemical reaction unit, a biological filler circulation unit and a demister 2-8. Both sides of the bottom of the filter tower body 2-1 are provided with air inlets. An electrochemical area, a biological filler area and a demisting area are arranged in the filter tower body 2-1 from bottom to top in sequence. An electrolyte solution is disposed within the electrochemical zone.
The bioelectrochemical reactor comprises an anode plate, a cathode plate, two drainage plates 2-2 and two partition plate groups. The back sides of the two drainage plates 2-2 are respectively fixed with the tops of two opposite side walls of the electrochemical area in the filter tower body 2-1. The top surface of the drainage plate 2-2 is obliquely arranged. The two partition plate groups are arranged on two sides of the symmetrical surface of the two drainage plates 2-2 in a centering way. The opposite sides of the two drainage plates 2-2 are arranged at intervals to form an output port of the electrochemical area.
The partition plate group consists of n partition plates, wherein n is 2. The n partition plates 2-3 are all arranged in the electrochemical area to form an S-shaped flow channel with the flow direction changing up and down. The partition plate 2-3 close to the filter tower body 2-1 is contacted with the drainage plate 2-2. The partition 2-3 remote from the filter tower body 2-1 is in contact with the bottom surface of the electrochemical zone. The two air inlets of the filter tower body 2-1 correspond to the two partition plate groups respectively. The air inlet of the filter tower body 2-1 is positioned at the outer side of the corresponding partition plate group.
The cathode plate is arranged in the electrochemical area and is positioned at the air inlet of the filter tower body 2-1; the anode plate is arranged in the electrochemical area and is positioned at the central position of the filter tower body 2-1. The anode plate and the cathode plate are respectively communicated with the anode and the cathode of a power supply. A switch is arranged between the anode plate and the power supply. The output voltage of the power supply is 200 mV-1800 mV.
Two air inlets of the filter tower body 2-1 are respectively connected with one ends of the two first on-off valves 5. The other ends of the two first on-off valves 5 are respectively connected with the output ends of the two one-way valves 6. The input ends of the two check valves 6 are connected with the air outlet of the capturing tower 1.
The biological filler circulating unit comprises a biological medium filler 2-4, a spray pipe 2-5 and a circulating pump 2-6. The biological medium filler 2-4 is arranged in the biological filler area of the filter tower body 2-1. The biological medium filler 2-4 adopts a mixture of carbon fiber and bamboo carbon fiber. The carbon fiber and the bamboo carbon fiber mainly adopt a multi-layer multi-face hollow sphere structure, so the method has the advantages of large specific surface area, easiness in film formation, difficulty in falling, good hydrophilicity, high biological activity, good treatment effect and the like. The BET test result shows that the adsorption efficiency can reach more than 90 percent aiming at various foul smells. Meanwhile, the carbon fiber and the bamboo carbon fiber cannot cause secondary pollution. And a degradation microbial inoculum is arranged in the biological medium filler 2-4. The degrading bacteria agent is polychlorinated hydrocarbon degrading bacteria or olefin degrading bacteria, including methane oxidizing bacteria, methyl cyst bacteria, methyl bacillus, micro bacillus and copper greedy bacteria.
The spray pipes 2-5 are arranged above the biological medium fillers 2-4. The spray pipes 2-5 are provided with a plurality of spray ports. The liquid inlet of the spray pipe 2-5 is connected with the output port of the circulating pump 2-6 through a second on-off valve 2-7. The input port of the circulating pump 2-6 is connected with the electrochemical area of the filter tower body 2-1. The circulation pump 2-6 is capable of continuously spraying the electrolyte solution in the electrochemical zone onto the bio-media pack 2-4. The electrolyte solution sprayed on the biological medium filler 2-4 carries part of degradation microbial inoculum to flow into the electrochemical area again. Because the electrochemical area is internally provided with electrified positive and negative electrodes, the electric field of the electrodes can destroy the impurity flora in the solution; in addition, the electric field can increase the dissolved oxygen in water, generate active groups such as hydroxyl free radicals and the like, and further inhibit the growth of impurity flora (anaerobic bacteria or thalli which are not suitable for electrochemical environment). Meanwhile, due to the existence of the additional electrode, the transfer of electrons in the electrolyte solution is accelerated, the degradation reaction speed of the waste gas is accelerated, and the dominant flora capable of rapidly receiving electrons is screened out (the degradation speed of the flora with fast electron transfer is higher). The screened dominant flora enters the biological medium filler 2-4 through the circulating pump 2-6 and the spray pipe 2-5, so that the degradation capability of the degrading bacteria agent in the biological medium filler 2-4 is improved.
The demister 2-8 is arranged in the demisting area of the filter tower body 2-1. The demister 2-8 adopts a wire mesh demister 2-8. The top of the filter tower body 2-1 is provided with a purification exhaust port. The input port of the fan 3 is connected with the purification exhaust port of the filter tower body 2-1, and the output port is connected with the bottom inlet of the exhaust funnel 4.
The working principle of the utility model is as follows:
firstly, introducing the sewage pool capped tail gas into a gas inlet of a capturing tower 1 through a gas inlet system, carrying out wet-type capturing on the sewage pool capped tail gas by a capturing tower 11, and absorbing components dissolved in water in the sewage pool capped tail gas. Then, the two first on-off valves 5 are switched on, and the capped tail gas of the sewage pool output by the capturing tower 11 enters an electrochemical area of the filter tower body 2-1; the switch is switched on, the anode plate and the cathode plate are charged with 200 mV-1800 mV voltage to promote the electron movement in the electrolyte solution, remove pollutants in the capped tail gas of the sewage tank through electrolytic reaction, and continuously provide the required oxygen for the degrading microbial inoculum.
Meanwhile, the second on-off valve 2-7 is switched on, and the circulating pump 2-6 is started, so that the degrading microbial inoculum is circulated in the electrochemical area and the biological filler area in a reciprocating manner, and the degrading microbial inoculum carries out degradation reaction on the tail gas covered by the sewage tank; the electron transfer in the electrochemical region promotes the screening of the degradation microbial inoculum, thereby rapidly and continuously improving the biodegradation efficiency.
And finally, covering tail gas on the biodegradable sewage tank, enabling the tail gas to rise and pass through the demister 2-8, and pumping the tail gas into the exhaust funnel 4 under the action of the fan 3 for discharging.
Example 2
This example differs from example 1 in that: the biological medium filler 2-4 adopts volcanic biological filler. Volcanic rock belongs to inert materials, has stable chemical properties, is corrosion-resistant and has strong hydrophilicity. The volcanic rock has a rough surface, a large specific surface area and is suitable for the growth and biofilm formation of microorganisms. Ensuring the effective operation of the biological reaction device.
Claims (8)
1. The utility model provides a effluent water sump adds lid tail gas purification deodorizing device which characterized in that: comprises an integrated electric biological filter module; the integrated electric biological filter module comprises a filter tower body, a bioelectrochemical reaction unit, a biological filler circulation unit and a demister; both sides of the bottom of the filter tower body are provided with air inlets; an electrochemical area, a biological filler area and a demisting area which are sequentially arranged from bottom to top are arranged in the filtering tower body; the electrochemical area is used for arranging electrolyte solution;
the bioelectrochemical reactor comprises an anode plate, a cathode plate, two drainage plates and two partition plate groups; the opposite sides of the two drainage plates are respectively fixed with the tops of two opposite side walls of an electrochemical area in the filter tower body; the two partition plate groups are respectively arranged below the symmetrical surfaces of the two drainage plates; the partition plate group consists of n partition plates; the n partition plates are all arranged in the electrochemical area to form an S-shaped flow channel; the cathode plate and the anode plate both extend into the electrochemical area;
the biological filler circulating unit comprises a biological medium filler, a spraying pipe and a circulating pump; the biological medium filler is arranged in the biological filler area of the filter tower body; a degradation microbial inoculum is arranged in the biological medium filler; the spray pipe is arranged above the biological medium filler; a plurality of spray ports are arranged on the spray pipe; the liquid inlet of the spray pipe is connected with the output port of the circulating pump; the input port of the circulating pump is connected with the electrochemical area of the filter tower body; the demister is arranged in the demisting area of the filter tower body; the top of the filtering tower body is provided with a purification exhaust port.
2. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: also comprises a catching tower; the capturing tower comprises a water storage layer, a gas inlet layer, a primary dehumidification layer, a primary spray layer, a secondary dehumidification layer, a secondary spray layer and a demisting layer which are sequentially arranged from bottom to top; the gas inlet layer is provided with a gas inlet; the filler of the first-stage dehumidification layer and the second-stage dehumidification layer is one of stainless steel, PP and polytetrafluoroethylene; the top spraying systems of the first-stage spraying layer and the second-stage spraying layer are internally provided with aqueous solution of inorganic acid; an air outlet is formed in the top of the defogging layer; the air outlet of the capturing tower is connected with the input ends of the two one-way valves; the output ends of the two one-way valves are respectively connected with one ends of the two first on-off valves; the other ends of the two first on-off valves are respectively connected with two air inlets of the filter tower body.
3. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: the device also comprises a fan and an exhaust funnel; the input port of the fan is connected with the purification exhaust port of the filter tower body, and the output port of the fan is connected with the bottom inlet of the exhaust funnel.
4. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: the cathode electrode plate is arranged in the electrochemical area and is positioned at the air inlet of the filter tower body; the anode plate is arranged in the electrochemical area and is positioned at the center of the filter tower body; the anode plate and the cathode plate are respectively communicated with the anode and the cathode of a power supply; a switch is arranged between the anode plate and the power supply; the output voltage of the power supply is 200 mV-1800 mV.
5. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: the biological medium filler is a mixture of carbon fiber and bamboo carbon fiber.
6. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: the biological medium filler adopts volcanic rock biological filler.
7. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: the degrading microbial inoculum is polychlorinated hydrocarbon degrading bacteria or olefin degrading bacteria.
8. The covered tail gas purification and deodorization device for sewage pools of claim 1, wherein: the top surface of the drainage plate is obliquely arranged; the two air inlets of the filter tower body correspond to the two partition plate groups respectively; the air inlet of the filter tower body is positioned at the outer side of the corresponding partition plate group; the demister adopts a wire mesh demister.
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| CN110523247A (en) * | 2019-08-02 | 2019-12-03 | 杭州电子科技大学 | A kind of added cover for sewage pool tail gas clean-up deodorization device and its deodorizing methods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110523247A (en) * | 2019-08-02 | 2019-12-03 | 杭州电子科技大学 | A kind of added cover for sewage pool tail gas clean-up deodorization device and its deodorizing methods |
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