CN218459126U - Ethylene oxide sterilization gas hydration microbial treatment system - Google Patents
Ethylene oxide sterilization gas hydration microbial treatment system Download PDFInfo
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- CN218459126U CN218459126U CN202221756942.9U CN202221756942U CN218459126U CN 218459126 U CN218459126 U CN 218459126U CN 202221756942 U CN202221756942 U CN 202221756942U CN 218459126 U CN218459126 U CN 218459126U
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Abstract
The utility model discloses an ethylene oxide sterilization gas hydration microorganism treatment system, which comprises a hydration unit, a buffer tank, an anaerobic biodegradation unit, a facultative biodegradation unit, an aerobic biodegradation unit, a clarification tank, an activated sludge return pipe, a reservoir and other technical components; wherein the hydration unit, the buffer tank, the anaerobic biodegradation unit, the facultative biodegradation system, the aerobic biodegradation unit, the clarification tank and the reservoir are connected through a gas-water pipeline; the utility model discloses an adopt hydration unit and multiple degradation microorganism fungus strain to carry out high-efficient handling to the ethylene oxide in the ethylene oxide sterilization waste gas, relative treatment effeciency reaches more than 90%, and the processing procedure is safe, and is pollution-free to the environment.
Description
Technical Field
The utility model relates to the technical field of environmental protection, concretely relates to hydration microbial treatment system of ethylene oxide sterilization waste gas.
Background
Currently, ethylene oxide gas sterilization is a widely applied method in the field of low-temperature sterilization, and after ethylene oxide gas sterilization is used, ethylene oxide sterilization waste gas in a sterilizer is generally treated by three methods: 1. high-altitude discharge can pollute the environment; 2. the catalytic combustion method is used for catalytically combusting the sterilized waste gas, and has potential safety hazards due to the flammability and explosiveness of ethylene oxide; 3. absorption processes, which produce ethylene glycol by acid catalysis, can cause secondary pollution by acid absorption. The existing methods for recycling the small molecular ethylene oxide waste gas are rarely reported, and data show that the ethylene oxide is condensed and recycled at the temperature of between 20 ℃ below zero and 30 ℃ below zero, so that the method has high energy consumption, the ethylene oxide and water are extremely difficult to separate, and the treatment cost required by equipment is high.
Therefore, it is an urgent technical problem in the art to provide an effective treatment system for ethylene oxide waste gas, which can efficiently and safely treat small molecular ethylene oxide in ethylene oxide sterilization waste gas and is environmentally friendly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an aqueous solution hydration conversion and microbiological treatment system of ethylene oxide sterilizing gas.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an ethylene oxide sterilizing gas hydration microbial treatment system comprising: the device comprises a hydration unit, an anaerobic biodegradation unit, a facultative biodegradation unit, an aerobic biodegradation unit and a reservoir;
wherein the hydration unit, the anaerobic biodegradation unit, the facultative biodegradation unit, the aerobic biodegradation unit, the reservoir and the hydration unit are communicated in sequence through pipelines;
one side of the hydration unit is connected with an ethylene oxide sterilization waste gas pipeline;
the hydration unit and the aerobic biodegradation unit are communicated through a pipeline.
Preferably, a buffer pool is arranged between the hydration unit and the anaerobic biodegradation unit; a clarification tank is arranged between the aerobic biodegradation unit and the reservoir; an activated sludge return pipe of the clarification tank is communicated with a feed pipeline of the anaerobic biodegradation unit; the hydration unit comprises a tower body, a water storage device and a water pump;
the tower body is arranged at the top end of the water storage device, and the tower body is connected with the water storage device through a water pump; the water storage device is connected with the ethylene oxide sterilization waste gas pipeline; the top of the tower body is connected with the water storage tank.
Preferably, a gas disperser is arranged in the water storage device, one end of the gas disperser is connected with the ethylene oxide sterilization waste gas pipeline, and the other end of the gas disperser is connected with the water pump; the top of the tower body is provided with an upper cover, and the bottom of the upper cover is sequentially provided with a gas guide plate, a water baffle, a sealing gasket and a water sprayer;
one end of the water sprayer is connected with the reservoir, and the other end of the water sprayer is connected with the water pump; the tower body is also provided with at least one viewing hole layer, generally the first layer can be positioned at the bottom of the water sprayer, and the viewing hole at the lowest layer can be positioned at the bottom of the tower body.
All be equipped with the valve on the pipeline, for example: the sprinkler with the cistern is connected, the tower body top is connected with the blast pipe, the sprinkler with the water pump is connected, the gas dispersion ware with ethylene oxide sterilization exhaust pipe connects, the water receiver with the buffer pool is connected, all is provided with the valve on the pipeline, just the utility model discloses the valve that sets up can all realize the automatic control of business turn over gas, business turn over water.
Preferably, anaerobic biological bacteria are arranged in the anaerobic biodegradation unit; the anaerobic organism is at least one of clostridium acidocaldarium, bacillus and photosynthetic bacteria.
The utility model discloses the anaerobic microorganism degradation system that sets up can build anaerobic environment, through the preliminary ethylene oxide that degrades in the waste water of anaerobic microorganism.
Preferably, facultative biological bacteria are arranged in the facultative biological degradation unit; the facultative organism is at least one of coccus and bacillus.
The utility model discloses the facultative anaerobe degradation unit that sets up can build the low oxygen environment, cultivates facultative anaerobe through the remaining ethylene oxide in the waste water of facultative anaerobe secondary degradation after above-mentioned anaerobe degradation.
Preferably, the aerobic biodegradation unit is provided with aerobic bacteria; the aerobic biological bacteria is at least one of bacillus, circovirus and pseudomonas.
The utility model discloses set up aerobic microorganism degradation system, can build aerobic environment, degrade remaining ethylene oxide in the waste water through above-mentioned facultative aerobe degradation through aerobic microorganism cubic.
The utility model discloses a set up three kinds of different microbial degradation units, adopt different nutrition type microorganism respectively, combine different microorganism to the degradation ability of ethylene oxide, gradually degrade the ethylene oxide in the waste water in proper order, reach better ethylene oxide degradation effect.
Preferably, the anaerobic organism bacteria, the facultative organism bacteria and the aerobic organism bacteria are all microorganism strains capable of efficiently degrading the ethylene oxide, which are obtained by microorganism degradation screening and induction.
The utility model discloses utilize ethylene oxide degradation bacterial strain degradation sterilization waste gas in ethylene oxide, can reach efficiency such as safe, high-efficient, green carbon that falls.
Compared with the prior art, the utility model discloses following beneficial effect has:
the ethylene oxide sterilization waste gas in the utility model is treated by hydration and a high-efficiency microbial degradation system, and the total relative treatment efficiency is more than 90 percent; the utility model discloses an adopt hydration unit and multiple nutrition type microbial strain to handle, can realize the high-efficient innocent treatment of ethylene oxide in the ethylene oxide sterilization waste gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for the description of the embodiments or the prior art will be briefly described below, and the drawings in the description are only the embodiments of the present invention.
FIG. 1 is a structural diagram of a water adsorption microorganism treatment system for ethylene oxide sterilization gas provided by the present invention; wherein: 1-ethylene oxide sterilization waste gas pipeline, 2-water pipeline, 3-hydration unit, 4-buffer tank, 5-anaerobic biodegradation unit, 6-facultative biodegradation unit, 7-aerobic biodegradation unit, 8-exhaust port, 9-clarification tank, 10-activated sludge reflux pipeline, 11-reservoir and 12-exhaust pipeline;
FIG. 2 is a diagram of the hydration unit of the present invention;
wherein: 301-a valve; 302-water baffle; 303-gas guiding plate; 304-upper cover; 305-a gasket; 306-a water sprayer; 307 a gas distributor; 308-a tower body; 309-a viewing aperture layer; 310-a gas disperser; 311-a water reservoir; 312-Water Pump.
Detailed Description
Embodiments of the invention are described below, examples of which are illustrated in the accompanying drawings, and the embodiments described with reference to the drawings are exemplary and intended to be used for explaining the invention, and are not to be construed as limiting the invention.
As shown in fig. 1, the utility model provides an ethylene oxide sterilization gas water adsorption microorganism treatment system, which comprises a hydration unit 3, an anaerobic biodegradation unit 5, a facultative biodegradation unit 6, an aerobic biodegradation unit 7 and a reservoir 11, wherein the hydration unit 3, the anaerobic biodegradation unit 5, the facultative biodegradation unit 6, the aerobic biodegradation unit 7, the reservoir 11 and the hydration unit are communicated in sequence through pipelines; one side of the hydration unit 3 is connected with an ethylene oxide sterilization waste gas pipeline 1, and the hydration unit is communicated with the aerobic biodegradation unit through a pipeline 2;
preferably, a buffer tank 4 is arranged between the hydration unit 3 and the anaerobic biodegradation unit 4; a clarification tank 9 is arranged between the aerobic biodegradation unit 7 and the reservoir 11; an activated sludge return pipe 10 of the clarification tank 9 is communicated with a feeding pipeline of the anaerobic biodegradation unit 7;
wherein, the ethylene oxide sterilization waste gas pipeline 1 is connected with a hydration unit 3; the hydration unit 3 is connected with the aerobic biodegradation unit 6 through an exhaust pipe 12; the activated sludge return pipe 10 is arranged between the buffer tank 4 and the anaerobic biodegradation unit 5 and is connected with the clarification tank 9;
the hydration unit 3 is provided with a tower 308, a water reservoir 311 and a water pump 312; the tower body 308 is arranged at the top end of the water storage tank 311, and the water pump 312 is connected with the tower body 308 through a pipeline; a gas disperser 310 is arranged in the water storage 311, one end of the gas disperser 310 is connected with the ethylene oxide sterilization waste gas pipeline 1, and the other end is detachably connected with the water pump 312;
an upper cover 304 is arranged at the top of the tower body 308, and a gas guide plate 303, a water baffle 302, a sealing gasket 305 and a water sprayer 306 are sequentially arranged at the bottom of the upper cover 304; the upper cover 304, the gas guide plate 303, the water baffle plate 302 and the water sprayer 306 are connected with the tower body 308; one end of the water sprayer 306 is connected with the water reservoir 1, and the other end is connected with the water pump 312;
further, the tower 308 further comprises a gas distributor 307 and at least one viewing aperture layer, the viewing aperture 309 may be provided with a plurality of layers, the first layer of viewing aperture is located at the bottom of the water sprayer 306, and the lowest layer of viewing aperture is generally located at the bottom of the tower; the gas distributor 307 and the observation hole 309 are detachably connected with the tower body;
the hydration unit is provided with a plurality of valves 30A, 301; can be respectively arranged on a pipeline 30A for connecting the water sprayer 306 with the water storage tank 11, a connecting part 301 between the top of the tower body 308 and the exhaust pipe 12, and a pipeline 301 for connecting the water sprayer 306 with the water pump 312; a joint 301 between the gas disperser 310 and the ethylene oxide sterilization waste gas pipe 1;
anaerobic biological bacteria are arranged in the anaerobic biodegradation unit 5, and the anaerobic biological bacteria are any one or mixture of more of clostridium acidocaldarium, bacillus and coccus;
the facultative biodegradation unit 6 is provided with facultative biological bacteria, and the facultative biological bacteria are any one or a mixture of more of lactobacillus, alcaligenes, coccus and saccharomycetes;
aerobic biological bacteria are arranged in the aerobic biological degradation unit 7, and the aerobic biological bacteria are any one or mixture of more of cyclosporins, bacilli and pseudomonas; the anaerobic organism bacteria, the facultative organism bacteria and the aerobic organism bacteria are ethylene oxide dominant degradation strains obtained by screening and induced domestication of ethylene oxide;
the utility model discloses ethylene oxide sterilization gaseous water adsorbs microbiological treatment system's theory of operation does:
when the system is started to work, ethylene oxide sterilization waste gas is introduced into the hydration unit 3 through the ethylene oxide sterilization waste gas pipeline 1, the hydration unit 3 absorbs the introduced low-concentration ethylene oxide sterilization waste gas by utilizing water conveyed in the reservoir 11 through the pipeline 2 to generate ethylene oxide waste water, the treated gas enters the aerobic biodegradation unit 7 through the exhaust pipe 12 to generate bubbles to increase aeration, oxygen is provided for microorganisms, and the treated gas is discharged through the exhaust port 8 after being treated again;
the ethylene oxide wastewater enters a buffer tank 4 through a pipeline and is temporarily stored in the buffer tank 4; the wastewater in the buffer tank 4 enters an anaerobic biodegradation unit 5, and under the anaerobic condition, the epoxy ethane in the wastewater is degraded by microorganisms serving as a carbon source;
the wastewater after anaerobic treatment by the microorganisms in the anaerobic organism ethylene oxide degradation unit 5 enters the facultative biodegradation unit 6, and the residual ethylene oxide in the wastewater is degraded by the microorganisms again under the condition of micro-oxygen; the wastewater treated by the facultative biodegradation unit 6 enters an aerobic biodegradation unit 7, and under the condition of high oxygen content, the residual ethylene oxide in the wastewater is degraded by microorganisms serving as a carbon source;
the wastewater treated by the aerobic biodegradation unit 8 enters a clarification tank 9 through a pipeline, clear water is recycled to a reservoir 11 after clarification, water circulation is realized, and activated sludge in the clarification tank 9 flows back to the anaerobic biodegradation ethylene oxide degradation unit 5 through an activated sludge backflow device 10 to be reused.
The utility model discloses still carried out following experiment:
example 1
(1) After the ethylene oxide sterilization waste gas is treated by a hydration unit, the waste water contains 100mg/L ethylene oxide;
(2) The ethylene oxide wastewater with the concentration of 100mg/L is treated by an anaerobic biodegradation unit, and the concentration of the treated ethylene oxide is 36.1mg/L.
(3) After the anaerobic biological treatment by the microorganism in the anaerobic biological degradation system, the residual ethylene oxide wastewater with the concentration of 36.1mg/L is introduced into the facultative biological degradation unit, and the concentration of the treated ethylene oxide is 13.5mg/L after the treatment by the microorganism in the facultative biological degradation unit.
(4) After being treated by the microorganisms in the facultative biodegradation unit, the residual ethylene oxide wastewater with the concentration of 13.5mg/L is introduced into the aerobic biodegradation unit, and after being treated by the microorganisms in the aerobic biodegradation unit, the concentration of the ethylene oxide is 3.2mg/L.
The test results show that: after the ethylene oxide wastewater with the concentration of 100mg/L is treated by a system for treating ethylene oxide sterilization waste gas by microorganisms, the discharge concentration is 3.2mg/L, and the treatment efficiency is 96%.
Example 2
(1) After the ethylene oxide sterilization waste gas is treated by a hydration unit, ethylene oxide waste water with the concentration of 200mg/L is obtained;
(2) The ethylene oxide wastewater with the concentration of 200mg/L is treated by an anaerobic biodegradation unit, and the concentration of the treated ethylene oxide is 70.1mg/L.
(3) After the anaerobic treatment by the microorganism in the anaerobic biodegradation system, the residual epoxy ethane wastewater with the concentration of 70.1mg/L is introduced into the facultative biodegradation unit, and the concentration of the processed epoxy ethane is 28.3mg/L after the treatment by the microorganism in the facultative biodegradation unit.
(4) The ethylene oxide wastewater with the residual concentration of 28.3mg/L after being treated by the microorganisms in the facultative biodegradation unit is introduced into the aerobic biodegradation unit, and the concentration of the treated ethylene oxide is 5.9mg/L after being treated by the microorganisms in the aerobic biodegradation unit.
The test results show that: after the ethylene oxide wastewater with the concentration of 200mg/L is treated by a system for treating ethylene oxide sterilization waste gas by microorganisms, the discharge concentration is 5.9mg/L, and the treatment efficiency is 97 percent.
The embodiments of the present invention have been shown and described above, which are exemplary, and those skilled in the art can change the above embodiments within the technical scope of the present invention.
Claims (9)
1. An ethylene oxide sterilizing gas hydration microbial treatment system comprising: the device comprises a hydration unit, an anaerobic biodegradation unit, a facultative biodegradation unit, an aerobic biodegradation unit and a reservoir;
wherein the hydration unit, the anaerobic biodegradation unit, the facultative biodegradation unit, the aerobic biodegradation unit, the reservoir and the hydration unit are communicated in sequence through pipelines;
one side of the hydration unit is connected with an ethylene oxide sterilization waste gas pipeline; the hydration unit and the aerobic biodegradation unit are communicated through a pipeline.
2. The system of claim 1, wherein a buffer tank is disposed between the hydration unit and the anaerobic biodegradation unit.
3. The system of claim 1, wherein a clarifier is disposed between the aerobic biodegradation unit and the water reservoir.
4. The system of claim 3, wherein the activated sludge return line of the clarifier is in communication with the feed line of the anaerobic biodegradation unit.
5. The ethylene oxide sterilizing gas hydrating microbial treatment system of claim 1, wherein the hydrating unit comprises a tower, a water reservoir and a water pump;
the tower body is arranged at the top end of the water storage device, and the tower body is connected with the water storage device through a water pump;
the water storage device is connected with the ethylene oxide sterilization waste gas pipeline;
the top of the tower body is connected with the water storage tank.
6. The system for sterilizing gas hydration microorganisms and treating them with ethylene oxide as claimed in claim 5, wherein a gas disperser is provided inside said water reservoir, one end of said gas disperser is connected to said ethylene oxide sterilizing waste gas conduit, and the other end is connected to said water pump.
7. The system for sterilizing gas hydration microbe treatment of epoxy ethane as recited in claim 5, wherein the top of the tower body is provided with an upper cover, the bottom of the upper cover is provided with a gas guide plate, a water baffle, a sealing gasket, and a water sprayer in sequence;
one end of the water sprayer is connected with the reservoir, and the other end of the water sprayer is connected with the water pump.
8. The system of claim 5, wherein the tower further comprises at least one perforated layer.
9. The system of claim 1, wherein the conduits are each provided with a valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221756942.9U CN218459126U (en) | 2022-07-07 | 2022-07-07 | Ethylene oxide sterilization gas hydration microbial treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221756942.9U CN218459126U (en) | 2022-07-07 | 2022-07-07 | Ethylene oxide sterilization gas hydration microbial treatment system |
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| CN218459126U true CN218459126U (en) | 2023-02-10 |
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| CN202221756942.9U Active CN218459126U (en) | 2022-07-07 | 2022-07-07 | Ethylene oxide sterilization gas hydration microbial treatment system |
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