CN215669973U - Harmful gas processing apparatus - Google Patents
Harmful gas processing apparatus Download PDFInfo
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- CN215669973U CN215669973U CN202121145910.0U CN202121145910U CN215669973U CN 215669973 U CN215669973 U CN 215669973U CN 202121145910 U CN202121145910 U CN 202121145910U CN 215669973 U CN215669973 U CN 215669973U
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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
Abstract
The utility model relates to the technical field of environmental protection, in particular to a harmful gas treatment device. The harmful gas treatment device provided by the utility model comprises an air inlet pipeline, a gas processor and an exhaust pipeline which are sequentially communicated, wherein the gas processor comprises a reaction tank and a liquid tank, the reaction tank is filled with a filler, the surface of the filler is coated with a biological film, liquid in the liquid tank can be sprayed into the reaction tank from the top end of the reaction tank, the air inlet pipeline is communicated with the bottom of the reaction tank, and the exhaust pipeline is communicated with the top of the reaction tank. The arrangement mode enables harmful gas to be decomposed and absorbed by microorganisms on the biological membrane after gas-liquid transfer and liquid-membrane transfer, so that the transfer efficiency of the harmful gas is higher. In addition, this mode of setting makes harmful gas get into the filler from the bottom of gas treater, because the principle that gas rises easily, discharges from the exhaust duct at gas treater's top again after harmful gas is fully purified by the microorganism for harmful gas is handled fully more high-efficiently.
Description
Technical Field
The utility model relates to the technical field of environmental protection, in particular to a harmful gas treatment device.
Background
The urban drainage system is an important infrastructure construction of cities, and drainage pipelines are responsible for the transportation and treatment of urban sewage and rainwater. In the running process of the drainage pipeline and the septic tank, because the closed environment easily provides a good growth environment for anaerobic microorganisms, organic matters and inorganic matters in the pipeline are decomposed by the microorganisms under the anoxic condition, and hydrogen sulfide (H) can be generated2S), methane (CH)4) And carbon monoxide (CO), which can lead to malodors, poisoning, and environmental pollution events. When the concentration of the gas accumulation exceeds a certain amount, the dangerous events such as explosion and the like can occur, and news reports that firecrackers are thrown into a sewer to cause explosion events are reported every year.
Hydrogen sulfide (H)2S) has the odor of rotten eggs, and hydrogen sulfide (H) is oxidized by Sulfur Oxidizing Bacteria (SOB) growing in an aerobic area at the top of the pipeline2S) to sulfuric acid (H)2SO4) And the corrosion inhibitor can react with calcium sulfate in the concrete pipeline to corrode the pipeline. Carbon monoxide (CO) in urban drainage pipelines and septic tanks is inhaled by respiratory tracts and then causes poisoning accidents. Methane (CH) in urban drainage pipelines and septic tanks4) As a greenhouse gas, the release of the greenhouse gas into the atmosphere causes 21 to 23 times of the greenhouse effect caused by corresponding carbon dioxide, and meanwhile, methane is flammable and easy to burnExplosive gases, which explode when the methane concentration exceeds the lower explosion limit (5% by volume).
At present, operating personnel generally get rid of the harmful gas in the pipeline regularly, purify after taking gas out through adopting the aspiration pump, but the harmful gas after taking out can't in time react in letting in the treater in the back just is discharged for handle thoroughly, the polluted environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a harmful gas treatment device which can fully and efficiently treat harmful gas, purify the harmful gas and protect the environment.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a harmful gas processing apparatus, is including being linked together admission line, gas treater and exhaust duct in proper order, gas treater is including reaction tank and liquid pond, it has the filler to fill in the reaction tank, the surface coating who packs has the biomembrane, liquid in the liquid pond can be followed the top of reaction tank is spouted into, the admission line with the bottom of reaction tank is linked together, exhaust duct with the top of reaction tank is linked together.
Preferably, the reaction tank comprises a reaction cylinder and a material bed arranged inside the reaction cylinder, the material bed is filled with the filler, and the gas inlet pipeline and the gas outlet pipeline are respectively communicated with the bottom and the top of the reaction cylinder;
the liquid pool comprises a return pipe, a liquid pool body, a spray pipe and a spray head which are sequentially communicated, the return pipe is communicated with the bottom of the reaction cylinder, and the spray head extends into the reaction cylinder.
Preferably, the liquid pool further comprises:
and the circulating pump is arranged on the spray pipe.
Preferably, the filler is an inorganic filler.
Preferably, the biological membrane is a hydrophilic substance.
As the preferred scheme, the free end of inlet duct is connected with the inlet scoop, the inlet scoop stretches into in the harmful gas, harmful gas processing apparatus still includes the subassembly of breathing in, the subassembly of breathing in sets up on the inlet duct.
Preferably, the harmful gas treatment apparatus further includes:
a gas detection module configured to detect a concentration of the harmful gas;
the control module is connected with the gas detection module, the gas detection module can transmit detected signals to the control module through a data transmission layer, the control module processes the signals, and when the concentration of the harmful gas exceeds a preset value of the control module, the control module controls the air suction assembly to suck the harmful gas through the air suction opening.
Preferably, the harmful gas treatment apparatus further includes:
and the alarm module is connected with the control module, and when the concentration of the harmful gas exceeds the preset value of the control module, the control module controls the alarm module to alarm.
Preferably, the harmful gas treatment apparatus further includes:
a photovoltaic power generation panel configured to provide electrical energy to the getter assembly, the gas detection module, the control module, and the alarm module.
Preferably, the gas detection module includes a hydrogen sulfide concentration sensor, a methane concentration sensor and a carbon monoxide concentration sensor, which are separately arranged, the hydrogen sulfide concentration sensor is used for detecting the concentration of hydrogen sulfide in the harmful gas, the methane concentration sensor is used for detecting the concentration of methane in the harmful gas, and the carbon monoxide concentration sensor is used for detecting the concentration of carbon monoxide in the harmful gas.
The utility model has the beneficial effects that:
the utility model provides a harmful gas treatment device, which is characterized in that after harmful gas enters a filler in a gas processor through an air inlet pipeline, the harmful gas is contacted with a biological membrane wetted by liquid in a liquid pool, so that the harmful gas is decomposed and absorbed by microorganisms on the biological membrane after gas-liquid transfer and liquid-membrane transfer, and the transfer efficiency of the harmful gas is higher. In addition, because the bottom of admission line and reaction tank is linked together, exhaust duct is linked together with the top of reaction tank, make harmful gas get into the filler from gas processor's bottom, because the principle that gas rises easily, discharge from the exhaust duct at gas processor's top again after harmful gas is fully purified by the microorganism, make harmful gas be handled fully more high-efficient, avoid appearing harmful gas and not handled thoroughly just the phenomenon of discharging from exhaust duct, purify harmful gas better, the environmental protection.
Drawings
FIG. 1 is a schematic structural view of a harmful gas treatment apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a harmful gas treatment apparatus in an embodiment of the present invention.
In the figure:
10. an inspection well; 20. treating the well;
1. an air intake duct; 11. an air suction opening;
2. a gas processor; 21. a reaction tank; 211. a reaction cylinder; 212. a material bed; 22. a liquid pool; 221. a return pipe; 222. a liquid pool body; 223. a shower pipe; 224. a shower head; 225. a circulation pump;
3. an exhaust duct;
4. a getter assembly; 41. a suction body; 42. a suction support;
5. a photovoltaic power generation panel; 51. a storage battery; 6. a well cover; 7. a support;
8. a gas detection module; 81. a hydrogen sulfide concentration sensor; 82. a methane concentration sensor; 83. a carbon monoxide concentration sensor;
91. a control module; 92. an alarm module; 93. a mobile terminal; 94. a display screen.
Detailed Description
In order to make the technical problems solved, the technical solutions adopted and the technical effects achieved by the present invention clearer, the technical solutions of the present invention are further described below by way of specific embodiments with reference to the accompanying drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in fig. 1, the present embodiment provides a harmful gas treatment device, which is mainly used for treating and purifying harmful gas in a drainage pipeline, and preventing the harmful gas in the drainage pipeline from polluting the environment and even causing dangerous events such as explosion due to too high concentration. The harmful gas treatment device is provided with an inspection well 10 and a treatment well 20, wherein the treatment well 20 is arranged on one side of the inspection well 10, the inspection well 10 is communicated with a drainage pipeline, the inspection well 10 is used for detecting the concentration of harmful gas in the drainage pipeline, and the treatment well 20 is used for purifying the harmful gas, so that the harmful gas is decomposed and purified.
Specifically, as shown in fig. 1, the harmful gas treatment device provided by the present embodiment further includes an air inlet pipeline 1, a gas processor 2, and an exhaust pipeline 3, which are sequentially communicated with each other, the air inlet pipeline 1 penetrates through the inspection well 10 and the treatment well 20, the air inlet pipeline 1 is used for inputting the harmful gas in the inspection well 10 into the treatment well 20, the gas processor 2 and the exhaust pipeline 3 are both disposed in the treatment well 20, the gas processor 2 is used for performing purification treatment on the harmful gas, and the exhaust pipeline 3 is used for exhausting the purified gas.
Preferably, as shown in fig. 1, the harmful gas treatment apparatus further includes a manhole cover 6, and the top ends of the inspection well 10 and the treatment well 20 are covered with the manhole cover 6, so that a person is prevented from inadvertently falling into the inspection well 10 or the treatment well 20, and safety is improved. Particularly, the well lid 6 on the inspection shaft 10 is the well lid of leakproofness, under the circumstances that prevents that personnel from dropping, can also avoid harmful gas to run out, and the well lid 6 on the treatment well 20 is ventilative well lid 6, can guarantee in time to discharge in the well lid 6 on the treatment well 20 after harmful gas is purified in gas treater 2.
In order to prevent the intake pipe 1 from shaking in the inspection well 10 and affecting the extraction work of harmful gas in the inspection well 10, as shown in fig. 1, the harmful gas processing device further comprises a support 7, the support 7 is arranged on the inner wall of the inspection well 10, and the support 7 is used for clamping and fixing the intake pipe 1, so that the intake pipe 1 is ensured to be stably fixed.
At present, operators need to remove harmful gas in the pipeline regularly, and the gas is purified after being pumped by an air pump, but the pumped harmful gas cannot react in time after being pumped into a processor and is discharged, so that the treatment is not thorough and the environment is polluted.
In order to solve the above problem, as shown in fig. 1, the gas processor 2 provided in this embodiment includes a reaction tank 21 and a liquid tank 22, the reaction tank 21 is filled with a filler, a biofilm is coated on the surface of the filler, liquid in the liquid tank 22 can be sprayed from the top of the reaction tank 21, the liquid can wet the biofilm so as to provide nutrients for microorganisms on the biofilm, an air inlet pipe 1 is communicated with the bottom of the reaction tank 21, and an air outlet pipe 3 is communicated with the top of the reaction tank 21.
By applying the mode, the harmful gas treatment device enables the harmful gas to be decomposed and absorbed by microorganisms on the biological membrane after the harmful gas is subjected to gas-liquid transmission and liquid-membrane transmission, so that the transmission efficiency of the harmful gas is higher. In addition, because the bottom of admission line 1 and reaction tank 21 is linked together, exhaust duct 3 is linked together with the top of reaction tank 21, make harmful gas get into the filler from the bottom of gas treater 2, because the principle that gas rises easily, discharge in the exhaust duct 3 at gas treater 2's top again after harmful gas is fully purified by the microorganism, make harmful gas be handled fully more high-efficiently, avoid appearing harmful gas and not handled the phenomenon of just discharging from exhaust duct 3 thoroughly, purify harmful gas better, the environmental protection.
Preferably, the filler is an inorganic filler, so that the filler is not easily compacted, the pressure is not high when the gas in the exhaust pipeline 3 passes through, a channel cannot be formed, and the transfer of the malodorous substance cannot be influenced.
Furthermore, the biological membrane adopts hydrophilic substances, so that an attached water layer always exists on the surface of the biological membrane, and the quality transmission of nutrient substances and metabolic products is continuously carried out between the attached water layer and the flowing water layer, so that the malodorous substances in the harmful gas are adsorbed by microorganisms and then degraded, and finally converted into harmless and odorless metabolic products.
Specifically, as shown in fig. 1, the reaction tank 21 includes a reaction cylinder 211 and a material bed 212 disposed inside the reaction cylinder 211, the material bed 212 is filled with a filler, the gas inlet pipe 1 and the gas outlet pipe 3 are respectively communicated with the bottom and the top of the reaction cylinder 211, and the material bed 212 inside the reaction cylinder 211 is protected by the reaction cylinder 211. The liquid pool 22 comprises a return pipe 221, a liquid pool body 222, a spray pipe 223 and a spray head 224 which are communicated in sequence, the return pipe 221 is communicated with the bottom of the reaction cylinder 211, the spray head 224 extends into the reaction cylinder 211, and the spray head 224 can enable liquid in the liquid pool body 222 to enter the material bed 212 in a spraying mode, so that the liquid received by the material bed 212 is more sufficient and uniform. In addition, the return pipe 221 is arranged to recycle the liquid which is not utilized in the reaction cylinder 211 to the liquid pool body 222, so that the liquid in the liquid pool body 222 can be continuously and circularly sprayed on the material bed 212 from top to bottom, and the material bed 212 is always in a wet state.
Preferably, as shown in fig. 1, the liquid tank 22 further comprises a circulation pump 225, and the circulation pump 225 is disposed on the shower pipe 223, so as to ensure that the liquid in the liquid tank body 222 can be circularly sprayed out of the shower head 224.
In order to guarantee that the harmful gas in the inspection shaft 10 can in time be carried and handle in the gas treater 2 in the treatment shaft 20, the free end of admission line 1 is connected with inlet scoop 11, inlet scoop 11 stretches into in the harmful gas in the inspection shaft 10, harmful gas processing apparatus still includes subassembly 4 of breathing in, subassembly 4 of breathing in sets up on admission line 1, subassembly 4 of breathing in can pass through inlet scoop 11 with the harmful gas in the inspection shaft 10 and extract admission line 1, thereby guarantee that harmful gas can in time enter into and handle in the gas treater 2.
Specifically, the suction assembly 4 includes a suction body 41 and a suction support 42, the suction support 42 is disposed in the treatment well 20, the suction support 42 is used for supporting and fixing the suction body 41, the suction body 41 is used for pumping the harmful gas in the inspection well 10 into the air inlet pipeline 1 through the air suction opening 11, the suction body 41 can be a fan, the air suction function of the fan is good, and the installation operation is convenient. It should be noted that, in the present embodiment, the suction module 4 is disposed in the treatment well 20, so that when the suction module 4 fails, an operator can enter the treatment well 20 to repair or replace the suction module 4.
When the harmful gas in the inspection well 10 is extracted by adopting the air suction component 4, the existing harmful gas treatment device has certain potential safety hazard if the harmful gas in the inspection well 10 is not extracted in time due to poor automation degree.
In order to solve the above problem, as shown in fig. 2, the harmful gas processing apparatus provided in this embodiment further includes a gas detection module 8, a control module 91, and a display screen 94, where the gas detection module 8 is used to detect the concentration of the harmful gas in the inspection well 10, the control module 91 is connected to the gas detection module 8 and the display screen 94, the gas detection module 8 can transmit the detected signal to the control module 91 through a data transmission layer, the control module 91 processes the signal, when the concentration of the harmful gas exceeds the preset value of the control module 91, the control module 91 controls the air suction body 41 to suck the harmful gas into the inspection well 10 through the air suction opening 11, the automation degree of the harmful gas treatment device is high, the harmful gas treatment device can be automatically treated according to the concentration of the harmful gas, the situation that the harmful gas is not extracted timely is avoided, and the timely work of the harmful gas treatment device is guaranteed. In addition, control module 91 can also control display screen 94 to show the parameter of the harmful gas concentration that gas detection module 8 detected, and the operating personnel of being convenient for in time know relevant concentration information.
Specifically, in order to ensure that the harmful gas treatment device can perform purification treatment on a plurality of harmful gases in the harmful gas, as shown in fig. 2, the gas detection module 8 includes a hydrogen sulfide concentration sensor 81, a methane concentration sensor 82, and a carbon monoxide concentration sensor 83, which are separately provided, the hydrogen sulfide concentration sensor 81 is used to detect the concentration of hydrogen sulfide in the harmful gas, the methane concentration sensor 82 is used to detect the concentration of methane in the harmful gas, the carbon monoxide concentration sensor 83 is used to detect the concentration of carbon monoxide in the harmful gas, when the concentration of the corresponding gas detected by any one of the concentration sensors exceeds a preset value in the control module 91, the control module 91 can control the air suction body 41 to suck harmful gas into the inspection well 10 through the air suction opening 11, so that the harmful gas treatment device can treat various harmful gases in the harmful gas in time.
Preferably, as shown in fig. 2, the harmful gas treatment device further includes an alarm module 92, the alarm module 92 is connected with the control module 91, when the concentration of the harmful gas exceeds the preset value of the control module 91, the control module 91 can control the alarm module 92 to alarm, and simultaneously, the information can be transmitted to the mobile terminal 93 through the mobile network signal, so that the automation degree of the harmful gas treatment device is further improved, the warning operator can conveniently and timely treat the harmful gas, the condition of the harmful gas in the pipeline can be conveniently known through the mobile terminal 93, and the harmful gas in the drainage pipeline is ensured not to exceed the standard.
Preferably, the harmful gas treatment device further comprises a photovoltaic power generation panel 5, the photovoltaic power generation panel 5 transmits power to the storage battery 51 after generating power, and then the storage battery 51 is used for supplying power to the control module 91, the air suction assembly 4, the gas detection module 8, the display screen 94 and the alarm module 92, so as to ensure the normal operation of the air suction assembly 4, the gas detection module 8, the control module 91, the display screen 94 and the alarm module 92. The display screen 94 is also capable of displaying the amount of power in the battery 51. In addition, the photovoltaic power generation panel 5 is used for generating electricity to provide electric energy, so that the energy-saving and environment-friendly effects are achieved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a harmful gas processing apparatus, its characterized in that is including being linked together inlet line (1), gas treater (2) and exhaust duct (3) in proper order, gas treater (2) are including reaction tank (21) and liquid pond (22), it has filler to fill in reaction tank (21), the surface coating of filler has the biomembrane, liquid in liquid pond (22) can be followed the top of reaction tank (21) is spout into, inlet line (1) with the bottom of reaction tank (21) is linked together, exhaust duct (3) with the top of reaction tank (21) is linked together.
2. The harmful gas treatment apparatus according to claim 1, wherein the reaction tank (21) includes a reaction cylinder (211) and a material bed (212) provided inside the reaction cylinder (211), the material bed (212) is filled with the packing, and the gas inlet duct (1) and the gas outlet duct (3) communicate with a bottom and a top of the reaction cylinder (211), respectively;
the liquid pool (22) comprises a return pipe (221), a liquid pool body (222), a spray pipe (223) and a spray head (224), which are sequentially communicated, the return pipe (221) is communicated with the bottom of the reaction cylinder (211), and the spray head (224) extends into the reaction cylinder (211).
3. The harmful gas treatment apparatus according to claim 2, wherein the liquid pool (22) further includes:
a circulation pump (225) disposed on the shower pipe (223).
4. The harmful gas treatment apparatus according to claim 1, wherein the filler is an inorganic filler.
5. The harmful gas treatment apparatus according to claim 1, wherein the biofilm is made of a hydrophilic substance.
6. A harmful gas treatment apparatus according to any one of claims 1 to 5, characterized in that a suction opening (11) is connected to a free end of the inlet duct (1), the suction opening (11) extends into the harmful gas, the harmful gas treatment apparatus further comprises a suction assembly (4), and the suction assembly (4) is disposed on the inlet duct (1).
7. The harmful gas treatment apparatus according to claim 6, further comprising:
a gas detection module (8) configured to detect a concentration of the harmful gas;
the control module (91) is connected with the gas detection module (8), the gas detection module (8) can transmit detected signals to the control module (91) through a data transmission layer, the control module (91) processes the signals, and when the concentration of the harmful gases exceeds the preset value of the control module (91), the control module (91) controls the air suction assembly (4) to extract the harmful gases through the air suction opening (11).
8. The harmful gas treatment apparatus according to claim 7, further comprising:
and the alarm module (92) is connected with the control module (91), and when the concentration of the harmful gas exceeds the preset value of the control module (91), the control module (91) controls the alarm module (92) to alarm.
9. The harmful gas treatment apparatus according to claim 8, further comprising:
a photovoltaic panel (5) configured to provide electrical energy to the getter assembly (4), the gas detection module (8), the control module (91) and the alarm module (92).
10. The harmful gas treatment apparatus according to claim 7, wherein the gas detection module (8) includes a hydrogen sulfide concentration sensor (81), a methane concentration sensor (82), and a carbon monoxide concentration sensor (83) that are separately provided, the hydrogen sulfide concentration sensor (81) being configured to detect a concentration of hydrogen sulfide in the harmful gas, the methane concentration sensor (82) being configured to detect a concentration of methane in the harmful gas, and the carbon monoxide concentration sensor (83) being configured to detect a concentration of carbon monoxide in the harmful gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121145910.0U CN215669973U (en) | 2021-05-26 | 2021-05-26 | Harmful gas processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121145910.0U CN215669973U (en) | 2021-05-26 | 2021-05-26 | Harmful gas processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215669973U true CN215669973U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121145910.0U Active CN215669973U (en) | 2021-05-26 | 2021-05-26 | Harmful gas processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215669973U (en) |
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2021
- 2021-05-26 CN CN202121145910.0U patent/CN215669973U/en active Active
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