CN113813765B - Phenol-cyanogen wastewater deodorization system and deodorization method thereof - Google Patents
Phenol-cyanogen wastewater deodorization system and deodorization method thereof Download PDFInfo
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- CN113813765B CN113813765B CN202111217778.4A CN202111217778A CN113813765B CN 113813765 B CN113813765 B CN 113813765B CN 202111217778 A CN202111217778 A CN 202111217778A CN 113813765 B CN113813765 B CN 113813765B
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- 238000004332 deodorization Methods 0.000 title claims abstract description 62
- 239000002351 wastewater Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005507 spraying Methods 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 33
- 239000003513 alkali Substances 0.000 claims abstract description 28
- 238000012856 packing Methods 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims description 15
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 9
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000011282 treatment Methods 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 5
- 101000697634 Anemonia viridis Kappa-actitoxin-Avd4a Proteins 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 3
- 238000007791 dehumidification Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 238000011221 initial treatment Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000010802 sludge Substances 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 235000019645 odor Nutrition 0.000 description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 150000002484 inorganic compounds Chemical class 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of environmental protection, in particular to a phenol-cyanogen wastewater deodorization system and a deodorization method thereof. The invention integrates the alkali liquor spraying layer, the first packing layer, the demister, the plasma deodorizing device, the active carbon packing layer, the water spraying layer and the second packing layer into one deodorizing tower, has high integration level, convenient installation, small occupied space, high removal rate, no secondary pollution, low running cost, convenient management and the like.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a phenol-cyanogen wastewater deodorization system and a deodorization method thereof.
Background
The phenol-cyanogen wastewater treatment station is mainly used in coking engineering, and is used for recovering odor when treating phenol-cyanogen wastewater, and substances generating odor in the sewage treatment process mainly comprise carbon, nitrogen and sulfur elements. Most odorants are organic and only a few are inorganic compounds. According to the description of the related materials, the concentration of ammonia is the highest from the component, followed by hydrogen sulfide; methyl mercaptan is the largest in terms of the intensity of odor, and then hydrogen sulfide, which is one of the main substances that produce malodorous odors, is the second most strong odor.
In the prior art, a biological deodorization or ion deodorization method is mainly adopted, the biological deodorization effect is good, the operation cost is low, the primary investment is low, but the land is large, the nutrient is required to be continuously added and the supplementary filler is required to be replaced, the air inlet quantity of the system and the temperature and humidity in the device are required to be strictly controlled, the requirement on the later operation and maintenance is high, and the operation cost is also high; the plasma deodorization device needs multiple devices to operate in series, has low integration level, occupies small space and is inconvenient to install.
Disclosure of Invention
The invention solves the problems that: aiming at the problems of large occupied space and low integration level of the phenol-cyanogen wastewater deodorization system in the prior art, the phenol-cyanogen wastewater deodorization system with high integration level is provided.
The invention is realized by the following technical proposal that the phenol-cyanogen wastewater deodorization system and the deodorization method thereof comprise a gas collecting hood, an air pipe, a deodorization tower, an induced draft fan and an exhaust pipe, wherein the gas collecting hood is connected with an air inlet of the deodorization tower through the air pipe, an air outlet of the deodorization tower is sequentially connected with the induced draft fan and the exhaust pipe through the air pipe,
the utility model discloses a deodorization tower, including deodorization tower, gas inlet, gas vent, clean water pump, plasma deodorizing device, clear water pump, the deodorization tower is equipped with the top of upper lye spraying layer, the deodorization tower is cylindrical tower body, is equipped with the baffle in the centre and divide into two with inside, and gas inlet and gas vent are located the both sides of deodorization tower lower position respectively, and the gas inlet below is the lye pond, and the top of gas inlet is equipped with the multilayer lye spraying layer, and the deodorization tower is equipped with the lye pump outside, and the inlet and the export of lye pump link to each other with lye pond and lye spraying layer respectively, and every lye spraying layer below all is equipped with first filler layer, and the top of the upper lye spraying layer is equipped with the defroster, plasma deodorizing device is installed at the top of deodorization tower, plasma deodorizing device's inlet and export are equipped with the multilayer water spraying layer respectively with between the gas vent of deodorization tower, the gas vent below of deodorization tower still is equipped with the clean water pump, the clean water pump outside is equipped with the clean water pump, the inlet and the export is connected with clean water tank and water layer respectively.
Further, the gas-collecting hood is arranged above an oil separation regulating tank, an AS reinforced aeration tank, an anoxic denitrification tank, an aerobic nitrification tank, a BDS-1 tank, a BDS-2/3 tank and a sludge concentration tank of the phenol-cyanogen wastewater treatment system.
Further, the first packing layer is a tray, the structure of the tray is a square air distribution plate with a flange, and small holes are uniformly and densely distributed on the bottom plate of the tray.
Further, the baffle of defroster department outwards bends, increases the flow cross section of defroster department.
Further, a second filler layer is arranged below each water spraying layer.
Further, an active carbon filler layer is arranged between the outlet of the plasma deodorizing device and the uppermost water spraying layer.
Further, the demister is a baffle demister or a wire mesh demister.
Further, the alkali liquor spraying layer and the spraying layer are both made of FRP pipes, and the nozzle is a hollow cone nozzle.
In another aspect of the invention, a gas collecting hood is covered on each treatment tank of the phenol-cyanogen wastewater treatment system, a draught fan generates negative pressure, odor in the gas collecting hood is introduced into a deodorizing tower for treatment, the deodorizing tower is divided into two cavities by a partition plate, the first cavity is fully contacted with alkaline liquor through an alkaline liquor pump, an alkaline liquor spraying layer and a first packing layer for primary treatment, then the demister is used for dehumidification, the demisted odor reaches a plasma deodorizing device at the top of the tower, large-particle pollutants are converted into simple small-molecular substances, decomposed odor is deflected downwards and adsorbed through an active carbon packing layer, finally the decomposed odor is treated in a second cavity of the deodorizing tower through a clean water pump, a water spraying layer and a second packing layer, and finally the decomposed odor is discharged from an exhaust drum to the high air after being sucked out by the draught fan.
The beneficial effects of the invention are as follows:
1. the invention adopts the combined process of alkali liquor washing, plasma and active carbon adsorption, etc., and has the advantages of high removal rate, no secondary pollution, low running cost, convenient management, etc.
2. The invention integrates the alkali liquor spraying layer, the first filler layer, the demister, the plasma deodorizing device, the active carbon filler layer, the water spraying layer and the second filler layer into one deodorizing tower, and has high integration level, convenient installation and small occupied space.
Drawings
FIG. 1 is a schematic diagram of a deodorizing system for phenol-cyanogen wastewater and a deodorizing method thereof according to the present invention.
In the figure: 1, a gas collecting hood; 2, an air pipe; 3, deodorizing tower; 4, induced draft fan; 5, exhausting the air cylinder; 6, a partition board; 7, an air inlet; 8, an exhaust port; 9 an alkali liquid pool; 10 alkali liquor spraying layers; 11, an alkali liquid pump; 12 a first filler layer; 13 a demister; 14 a plasma deodorizing device; 15 water spraying layers; 16 clean water tanks; 17 a clean water pump; 18 an activated carbon filler layer; and 19 a second filler layer.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in figure 1, the phenol-cyanogen wastewater deodorization system and the deodorization method thereof comprise a gas collecting hood 1, an air pipe 2, a deodorization tower 3, an induced draft fan 4 and an exhaust funnel 5, wherein the gas collecting hood 1 is connected with an air inlet 7 of the deodorization tower 3 through the air pipe 2, an air outlet 8 of the deodorization tower 3 is sequentially connected with the induced draft fan 4 and the exhaust funnel 5 through the air pipe 2,
the deodorization tower 3 is a cylindrical tower body, the middle of the deodorization tower 3 is provided with a partition plate 6 for dividing the inside into two, an air inlet 7 and an air outlet 8 are respectively positioned at two sides of the middle lower position of the deodorization tower 3, an alkali liquor pool 9 is arranged below the air inlet 7, a plurality of layers of alkali liquor spraying layers 10 are arranged above the air inlet 7, an alkali liquor pump 11 is arranged outside the deodorization tower 3, an inlet and an outlet of the alkali liquor pump 11 are respectively connected with the alkali liquor pool 9 and the alkali liquor spraying layers 10, a first packing layer 12 is arranged below each layer of alkali liquor spraying layers 10, a demister 13 is arranged above the uppermost alkali liquor spraying layer 10, a plasma deodorization device 14 is arranged at the top of the deodorization tower 3, the inlet and the outlet of the plasma deodorization device 14 are respectively communicated with two cavities of the deodorization tower 3, a plurality of layers of water layers 15 are further arranged between the outlet of the plasma deodorization device 14 and the air outlet 8 of the deodorization tower 3, a clean water tank 16 is further arranged below the air outlet 8 of the deodorization tower 3, and a clean water pump 17 is arranged outside the deodorization tower 3, and the clean water pump 17 is respectively connected with the clean water tank 16 and the clean water layer 15.
In practical application, the gas-collecting hood 1 is arranged above an oil separation regulating tank, an AS enhanced aeration tank, an anoxic denitrification tank, an aerobic nitrification tank, a BDS-1 tank, a BDS-2/3 tank and a sludge concentration tank of the phenol-cyanogen wastewater treatment system.
In practical application, the first packing layer 12 is a tray, the structure of the tray is a square air distribution plate with a flange, and small holes are uniformly and densely distributed on the bottom plate of the tray.
In practical application, the partition plate 6 at the demister 13 is bent outwards, so that the flow cross section at the demister 13 is increased.
In practical application, a second filler layer 19 is arranged below each water spraying layer 15.
In practical application, an activated carbon filler layer 18 is further disposed between the outlet of the plasma deodorizing device 14 and the uppermost water spraying layer 15.
In practical application, the demister 13 is a baffle demister 13 or a wire mesh demister 13.
In practical application, the alkali liquor spraying layer 10 and the water spraying layer 15 are made of FRP pipes, and the nozzle is a hollow cone nozzle.
In another aspect of the invention, a method for deodorizing phenolic cyanide wastewater is provided, a gas collecting hood 1 is covered on each treatment tank of a phenolic cyanide wastewater treatment system, a draught fan 4 generates negative pressure, odor in the gas collecting hood 1 is introduced into a deodorizing tower 3 for treatment, the deodorizing tower 3 is divided into two cavities by a partition plate 6, the first cavity is fully contacted with odor and alkali liquor for primary treatment through an alkali liquor pump 11, an alkali liquor spraying layer 10 and a first packing layer 12, then the defogger 13 is used for dehumidification, the defogged odor reaches a plasma deodorizing device 14 at the top of the tower, large-particle pollutants are converted into simple small-molecular substances, the decomposed odor is deflected downwards, is adsorbed through an active carbon packing layer 18, finally the decomposed odor is secondarily treated through a clean water pump 17, a water spraying layer 15 and a second packing layer in a second cavity of the deodorizing tower 3, and finally the decomposed odor is discharged from an exhaust drum 5 to the high altitude after being sucked out by the draught fan 4.
In conclusion, the phenol-cyanogen wastewater deodorization system has the advantages of high removal rate, no secondary pollution, low operation cost, high integration level, convenience in installation and small occupied space.
The foregoing has outlined and described the basic principles, features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention can be implemented by those skilled in the art without limiting the scope of the invention, therefore, all equivalent changes or modifications that are made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. A phenol-cyanogen wastewater deodorization system is characterized in that: comprises a gas collecting hood (1), an air pipe (2), a deodorizing tower (3), an induced draft fan (4) and an exhaust drum (5), wherein the gas collecting hood (1) is connected with an air inlet (7) of the deodorizing tower (3) through the air pipe (2), an air outlet (8) of the deodorizing tower (3) is sequentially connected with the induced draft fan (4) and the exhaust drum (5) through the air pipe (2),
the utility model discloses a deodorization tower, which is characterized in that the deodorization tower (3) is a cylindrical tower body, a partition plate (6) is arranged in the middle to divide the inside into two parts, an air inlet (7) and an air outlet (8) are respectively positioned at two sides of the lower part of the deodorization tower (3), an alkali liquor tank (9) is arranged below the air inlet (7), a multi-layer alkali liquor spraying layer (10) is arranged above the air inlet (7), an alkali liquor pump (11) is arranged outside the deodorization tower (3), an inlet and an outlet of the alkali liquor pump (11) are respectively connected with the alkali liquor tank (9) and the alkali liquor spraying layer (10), a first packing layer (12) is arranged below each alkali liquor spraying layer (10), a demister (13) is arranged above the uppermost alkali liquor spraying layer (10), a plasma deodorizing device (14) is arranged at the top of the deodorization tower (3), an inlet and an outlet of the plasma deodorizing device (14) are respectively communicated with two cavities of the deodorization tower (3), a water spraying layer (15) is further arranged between the outlet of the plasma deodorizing device (14) and the air outlet (8) of the deodorization tower (3), a water tank (17) is further arranged outside the water tank (17), the inlet and the outlet of the clean water pump (17) are respectively connected with the clean water tank (16) and the water spraying layer (15).
2. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: the gas-collecting hood (1) is arranged above an oil separation regulating tank, an AS reinforced aeration tank, an anoxic denitrification tank, an aerobic nitrification tank, a BDS-1 tank, a BDS-2/3 tank and a sludge concentration tank of the phenol-cyanogen wastewater treatment system.
3. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: the first packing layer (12) is a tray, the structure of the tray is a square air distribution plate with a flange, and small holes are uniformly and densely distributed on the bottom plate of the tray.
4. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: the separator (6) at the demister (13) is bent outwards, so that the flow cross section at the demister (13) is increased.
5. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: a second filler layer (19) is arranged below each water spraying layer (15).
6. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: an active carbon filler layer (18) is arranged between the outlet of the plasma deodorizing device (14) and the uppermost water spraying layer (15).
7. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: the demister (13) is a baffle demister (13) or a wire mesh demister (13).
8. A phenolic cyanide wastewater deodorization system according to claim 1 wherein: the alkali liquor spraying layer (10) and the water spraying layer (15) are both made of FRP pipes, and the nozzle is a hollow cone nozzle.
9. A phenol-cyanogen wastewater deodorization method is characterized in that: the gas collecting hood (1) is covered on each treatment pool of the phenol-cyanogen wastewater treatment system, the induced draft fan (4) generates negative pressure, odor in the gas collecting hood (1) is introduced into the deodorizing tower (3) for treatment, the deodorizing tower (3) is divided into two cavities by the partition board (6), the first cavity is internally provided with the alkaline liquid pump (11), the alkaline liquid spraying layer (10) and the first filler layer (12) to enable the odor and the alkaline liquid to fully contact for primary treatment, and then the demister (13) is used for dehumidification, the defogging odor reaches a plasma deodorizing device (14) at the top of the tower, large-particle pollutants are converted into simple small-molecular substances, decomposed odor is deflected downwards and is adsorbed by an active carbon packing layer (18), finally the decomposed odor is subjected to secondary treatment in a second cavity of the deodorizing tower (3) through a clean water pump (17), a water spraying layer (15) and a second packing layer (19), and finally the decomposed odor is sucked out by a draught fan (4) and is discharged from an exhaust funnel (5) to the high altitude.
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| CN202111217778.4A CN113813765B (en) | 2021-10-19 | 2021-10-19 | Phenol-cyanogen wastewater deodorization system and deodorization method thereof |
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| CN202111217778.4A CN113813765B (en) | 2021-10-19 | 2021-10-19 | Phenol-cyanogen wastewater deodorization system and deodorization method thereof |
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| CN113813765B true CN113813765B (en) | 2024-03-12 |
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