CN221432588U - Device for treating malodorous gas and VOCs (volatile organic compounds) by biological activated sludge coupling chemical method - Google Patents
Device for treating malodorous gas and VOCs (volatile organic compounds) by biological activated sludge coupling chemical method Download PDFInfo
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- CN221432588U CN221432588U CN202322892987.XU CN202322892987U CN221432588U CN 221432588 U CN221432588 U CN 221432588U CN 202322892987 U CN202322892987 U CN 202322892987U CN 221432588 U CN221432588 U CN 221432588U
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- washing tower
- activated sludge
- vocs
- biological activated
- water
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- 239000010802 sludge Substances 0.000 title claims abstract description 43
- 239000000126 substance Substances 0.000 title claims abstract description 21
- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000008878 coupling Effects 0.000 title claims abstract description 8
- 238000010168 coupling process Methods 0.000 title claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000012528 membrane Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims description 35
- 239000002912 waste gas Substances 0.000 claims description 11
- 238000012544 monitoring process Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000001311 chemical methods and process Methods 0.000 claims 8
- 239000006260 foam Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 239000010865 sewage Substances 0.000 abstract description 9
- 238000011112 process operation Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 description 6
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a device for treating malodorous gas and VOCs (volatile organic compounds) by a biological activated sludge coupling chemical method, which comprises a gas-liquid double-membrane washing tower unit and a chemical washing tower unit; the gas-liquid double-film washing tower unit comprises a first washing tower and a water removing device, and the water removing device is arranged in the middle of the first washing tower; the first washing tower is provided with an air outlet, a water inlet, a feed inlet and a discharge outlet, and the air outlet, the water inlet, the feed inlet and the discharge outlet are sequentially arranged from top to bottom; the chemical washing tower unit comprises a second washing tower and a filler module, and the filler module is arranged in the second washing tower; the second washing tower is provided with a spray circulating pipe, a first end of the spray circulating pipe is connected to the bottom of the second washing tower, and a second end of the spray circulating pipe is connected to the top of the second washing tower and is positioned above the filler module so as to circulate spray water positioned at the bottom of the second washing tower. The utility model has the advantages of effectively reducing sewage treatment load, low operation cost, stable process operation, wide application industry and the like.
Description
Technical Field
The utility model relates to the field of environmental protection, in particular to a device for treating malodorous gas and VOCs by a biological activated sludge coupling chemical method.
Background
Production enterprises (e.g., food factories, pharmaceutical factories, chemical factories, etc.) often need to be provided with sewage treatment stations to purify contaminants generated in the production process. In the process of storing and treating sewage, certain sulfur-containing compounds and nitrogen-containing compounds can be converted into volatile malodorous components such as hydrogen sulfide, ammonia nitrogen and the like under the action of microorganisms; other volatile components or intermediates are released into the atmosphere, resulting in the exhaust gas containing volatile organics such as methyl mercaptan, dimethyl sulfide, etc. Thus, such waste sewage plant gases typically contain a variety of components including acid gases, alkaline gases, and VOCs, and the waste gases have a relatively high moisture content.
Chemical absorption towers or multi-stage scrubbing towers are commonly used in the prior art to treat the waste gases produced by a sewage station. However, the sewage station has the defects of increased treatment load, high cost, high treatment standard difficulty and the like due to the characteristics of large starting amount, low concentration, multiple pollutants, high energy consumption and high water consumption.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model mainly aims to provide a device for treating malodorous gas and VOCs by using a biological activated sludge coupling chemical method, which can effectively reduce sewage treatment load.
In order to achieve the main purpose, the utility model provides a device for treating malodorous gas and VOCs by a biological activated sludge coupling chemical method, which comprises a gas-liquid double-membrane washing tower unit and a chemical washing tower unit;
The gas-liquid double-film washing tower unit comprises a first washing tower and a water removing device, and the water removing device is arranged in the middle of the first washing tower; the first washing tower is provided with an air outlet, a water inlet, a feed inlet and a discharge outlet, and the air outlet, the water inlet, the feed inlet and the discharge outlet are sequentially arranged from top to bottom;
The feeding port is connected with an exhaust gas inlet pipeline for supplying exhaust gas into the first washing tower, and is connected with an aerobic activated sludge pipeline for applying aerobic activated sludge into the first washing tower; the water inlet is arranged above the water removing device to supply cleaning water into the first washing tower; the discharging port is used for discharging the mixed material at the bottom of the first washing tower outwards;
The chemical washing tower unit comprises a second washing tower and a filler module, and the filler module is arranged in the second washing tower; a spray circulation pipe is arranged on the second washing tower, a first end of the spray circulation pipe is connected to the bottom of the second washing tower, and a second end of the spray circulation pipe is connected to the top of the second washing tower and is positioned above the filler module so as to circulate spray water at the bottom of the second washing tower;
The second washing tower is provided with an air inlet end and an air outlet end, the air inlet end is positioned below the filler module and connected with the air outlet of the first washing tower, and the air outlet end is positioned at the top of the second washing tower to discharge treated gas.
According to one embodiment of the utility model, the aerobic activated sludge pipe extends into the exhaust gas inlet pipe to supply the aerobic activated sludge into the first scrubber; the end part of the aerobic activated sludge pipeline extending into the waste gas inlet pipeline is provided with a liquid film nozzle, and the waste gas supplied in the waste gas inlet pipeline is in countercurrent contact adsorption with a liquid film surface generated by the liquid film nozzle.
According to one embodiment of the utility model, a sludge pump is arranged on the aerobic activated sludge pipeline.
According to one specific embodiment of the utility model, the discharge port is circulated into the aerobic tank through a sludge circulation pipe for reuse.
According to one embodiment of the utility model, a spray circulation pump is arranged on the spray circulation pipe.
According to one specific embodiment of the utility model, a bypass branch pipe is arranged on the spray circulation pipe and connected with the second washing tower; wherein, be equipped with monitoring module on the bypass branch pipe.
According to one embodiment of the utility model, the monitoring module includes a conductivity meter and a PH meter.
According to one embodiment of the utility model, the second end of the spray circulation pipe is provided with a nozzle.
According to a specific embodiment of the utility model, the top of the second scrubber is also provided with a demister.
The utility model has the following beneficial effects:
The device is specially designed for malodorous gas and VOCs generated by sewage treatment, utilizes the adsorption performance of activated sludge and a large amount of activated sludge in a sewage station to degrade easily degradable organic matters in waste gas, and simultaneously performs synergistic treatment by a coupling chemical method.
The objects, technical solutions and advantages of the present utility model will be more clearly described below, and the present utility model will be further described in detail with reference to the accompanying drawings and the detailed description.
Drawings
FIG. 1 is a schematic diagram of the connection of an embodiment of the device of the present utility model;
FIG. 2 is a schematic diagram of a gas-liquid double membrane scrubber unit according to the present utility model.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.
As shown in fig. 1-2, the apparatus for treating malodorous gas and VOCs by the bio-activated sludge coupled chemical method of the embodiment includes a gas-liquid double-membrane scrubber unit 10 and a chemical scrubber unit 20; wherein, the waste gas is treated by the gas-liquid double-film washing tower unit 10 and then is treated by the chemical washing tower unit 20 for the second time.
With continued reference to fig. 2, the gas-liquid double-membrane scrubber unit 10 includes a first scrubber 11 and a water removing device 12, where the water removing device 12 is disposed in the middle of the first scrubber 11; the first washing tower 11 is provided with an air outlet 111, a water inlet 112, a feed inlet 113 and a discharge outlet 114, and the air outlet 111, the water inlet 112, the feed inlet 113 and the discharge outlet 114 are sequentially arranged from top to bottom;
An exhaust gas inlet pipeline 13 is connected to the feed inlet 113 to supply exhaust gas into the first scrubber 11, and an aerobic activated sludge pipeline 14 is connected to the feed inlet 113 to supply aerobic activated sludge into the first scrubber 11; the aerobic activated sludge line 14 is provided with a sludge pump which is turned on to supply the aerobic (bio) activated sludge into the first scrubber 11.
Further, an aerobic activated sludge pipe 14 extends into the exhaust gas inlet pipe 13 to supply aerobic activated sludge into the first scrubber 11; the end of the aerobic activated sludge pipeline 14 extending into the exhaust gas inlet pipeline 13 is provided with a liquid film nozzle 15, and the supplied exhaust gas in the exhaust gas inlet pipeline 13 is in countercurrent contact adsorption with a liquid film surface S generated by the liquid film nozzle 15 so as to remove easily water-soluble components in the gas.
The water inlet 112 is arranged above the water removing device 12 to supply cleaning water into the first washing tower 11, and the water inlet 112 is preferably connected with the water storage device through a pipeline; the discharging hole 114 is used for discharging the mixed material at the bottom of the first washing tower 11 outwards; wherein the discharge port 114 is preferably recycled to the aerobic tank for reuse through a sludge circulation pipe.
The chemical scrubber unit 20 includes a second scrubber 21 and a packing module 22, and the packing module 22 is disposed in the second scrubber 21 for performing adsorption treatment on the gas; wherein the packing in the packing module 22 can be adapted as desired, and is not deployed here; the second washing tower 21 is provided with a spray circulation pipe 23, and the spray circulation pipe 23 is provided with a spray circulation pump 24; wherein, the first end of the spray circulation pipe 23 is connected to the bottom of the second washing tower 21, and the second end of the spray circulation pipe 23 is connected to the top of the second washing tower 21 and above the packing module 22 to circulate the spray water at the bottom of the second washing tower 21; specifically, the second end of the spray circulation pipe 23 is provided with a nozzle 25 to achieve uniform spraying of spray water.
The second scrubber 21 has an inlet end 211, an outlet end 212, and other connection ends (e.g., a water outlet end, a dosing end, etc.), the inlet end 211 is located below the packing module 22 and connected to the outlet 111 of the first scrubber 11, and the outlet end 212 is located at the top of the second scrubber 21 for discharging the treated gas. Preferably, the top of the second scrubber 21 is also provided with a demister 26, the demister 26 preferably being a wire mesh demister.
With continued reference to fig. 1, the spray circulation pipe 23 of the embodiment is provided with a bypass branch pipe 27, and the bypass branch pipe 27 is connected with the second scrubber 21; the bypass branch pipe 27 is provided with a monitoring module 28, and the monitoring module 28 is used for monitoring the water quality condition in the chemical absorption tower in real time. Specifically, the monitoring module 28 includes, for example, a conductivity meter and a PH meter.
Although the utility model has been described above by way of examples, it should be understood that the above examples are illustrative only of the possible embodiments of the utility model and should not be construed as limiting the scope of the utility model, i.e. that substitutions or variations according to the utility model will be covered by the scope of the claims of the utility model.
Claims (9)
1. The device for treating malodorous gas and VOCs by using the biological activated sludge coupling chemical method is characterized by comprising a gas-liquid double-membrane washing tower unit and a chemical washing tower unit;
The gas-liquid double-film washing tower unit comprises a first washing tower and a water removing device, and the water removing device is arranged in the middle of the first washing tower; the first washing tower is provided with an air outlet, a water inlet, a feed inlet and a discharge outlet, and the air outlet, the water inlet, the feed inlet and the discharge outlet are sequentially arranged from top to bottom;
The feeding port is connected with an exhaust gas inlet pipeline for supplying exhaust gas into the first washing tower, and is connected with an aerobic activated sludge pipeline for applying aerobic activated sludge into the first washing tower; the water inlet is arranged above the water removing device so as to supply cleaning water into the first washing tower; the discharge port is used for discharging the mixed material at the bottom of the first washing tower outwards;
The chemical washing tower unit comprises a second washing tower and a filler module, and the filler module is arranged in the second washing tower; the second washing tower is provided with a spray circulating pipe, a first end of the spray circulating pipe is connected to the bottom of the second washing tower, and a second end of the spray circulating pipe is connected to the top of the second washing tower and is positioned above the filler module so as to circulate spray water at the bottom of the second washing tower;
The second washing tower is provided with an air inlet end and an air outlet end, the air inlet end is positioned below the filler module and connected with the air outlet of the first washing tower, and the air outlet end is positioned at the top of the second washing tower to discharge treated gas.
2. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: the aerobic activated sludge pipeline extends into the waste gas inlet pipeline so as to enable the aerobic activated sludge to enter the first washing tower; the end part of the aerobic activated sludge pipeline extending into the waste gas inlet pipeline is provided with a liquid film nozzle, and the waste gas supplied in the waste gas inlet pipeline and the liquid film surface generated by the liquid film nozzle are subjected to countercurrent contact adsorption.
3. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: and a sludge pump is arranged on the aerobic activated sludge pipeline.
4. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: the discharge port is circulated into the aerobic tank through a sludge circulation pipe for recycling.
5. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: and a spray circulating pump is arranged on the spray circulating pipe.
6. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: a bypass branch pipe is arranged on the spray circulating pipe and connected with the second washing tower; and the bypass branch pipe is provided with a monitoring module.
7. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 6 wherein: the monitoring module comprises a conductivity meter and a PH meter.
8. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: and a nozzle is arranged at the second end of the spray circulating pipe.
9. The apparatus for treating malodorous gases and VOCs by a biological activated sludge coupled chemical process of claim 1 wherein: and a foam remover is further arranged at the top of the second washing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322892987.XU CN221432588U (en) | 2023-10-27 | 2023-10-27 | Device for treating malodorous gas and VOCs (volatile organic compounds) by biological activated sludge coupling chemical method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322892987.XU CN221432588U (en) | 2023-10-27 | 2023-10-27 | Device for treating malodorous gas and VOCs (volatile organic compounds) by biological activated sludge coupling chemical method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221432588U true CN221432588U (en) | 2024-07-30 |
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ID=92069647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322892987.XU Active CN221432588U (en) | 2023-10-27 | 2023-10-27 | Device for treating malodorous gas and VOCs (volatile organic compounds) by biological activated sludge coupling chemical method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221432588U (en) |
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2023
- 2023-10-27 CN CN202322892987.XU patent/CN221432588U/en active Active
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