CN113413755B - Working system and working method for processing VOC by biological method - Google Patents
Working system and working method for processing VOC by biological method Download PDFInfo
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- CN113413755B CN113413755B CN202110830141.6A CN202110830141A CN113413755B CN 113413755 B CN113413755 B CN 113413755B CN 202110830141 A CN202110830141 A CN 202110830141A CN 113413755 B CN113413755 B CN 113413755B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000010170 biological method Methods 0.000 title abstract description 5
- 238000005507 spraying Methods 0.000 claims abstract description 48
- 238000011282 treatment Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 123
- 238000004062 sedimentation Methods 0.000 claims description 88
- 239000012855 volatile organic compound Substances 0.000 claims description 79
- 238000000746 purification Methods 0.000 claims description 61
- 238000007789 sealing Methods 0.000 claims description 39
- 239000007921 spray Substances 0.000 claims description 20
- 238000009423 ventilation Methods 0.000 claims description 16
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 8
- 230000001376 precipitating effect Effects 0.000 claims description 6
- 239000010802 sludge Substances 0.000 claims description 6
- 244000005700 microbiome Species 0.000 claims description 5
- 235000015097 nutrients Nutrition 0.000 claims description 5
- 239000002274 desiccant Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 241000736262 Microbiota Species 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 37
- 238000005457 optimization Methods 0.000 description 16
- 238000009434 installation Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 241001148470 aerobic bacillus Species 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- 239000003440 toxic substance Substances 0.000 description 1
- 241001148471 unidentified anaerobic bacterium Species 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
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- 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
- B01D53/84—Biological 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
- B01D53/14—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 absorption
- B01D53/1487—Removing organic compounds
-
- 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
- B01D53/14—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 absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- 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 invention discloses a working system and a working method for processing VOC by a biological method, comprising the following steps: the device comprises a bearing bottom plate, wherein a first component is fixedly installed at one end of the upper surface of the bearing bottom plate, a second component is connected to the front face of the first component, a third component is connected to the front face of the second component, a fourth component is connected to the front face of the third component, a purifying exhaust pipe is fixedly installed at the top of the front face of the fourth component, a fifth component is arranged on the front face of the fourth component, and the first component comprises a purifying connector. The beneficial effects of the invention are as follows: according to the invention, the purifying component, the first spraying component and the second spraying component are utilized to carry out three-time purifying treatment on the VOC gas, the microbiota is utilized to absorb the VOC, the overall treatment effect is better, the purifying degree of the VOC is higher, and meanwhile, the purified gas is treated again through the purifying exhaust pipe and then is directly discharged, so that the possibility of gas pollution is reduced.
Description
Technical Field
The invention relates to a VOC treatment working system, in particular to a biological VOC treatment working system and a biological VOC treatment working method, and belongs to the technical field of VOC treatment.
Background
VOCs are the English abbreviations for volatile organic compounds (volatile organic compounds). VOC in the common sense refers to volatile organic compounds; but the definition in the environment-friendly sense refers to active volatile organic compounds, namely volatile organic compounds which can generate harm.
The volatile organic compounds refer to organic matters with saturated vapor pressure exceeding 70.91Pa or boiling point less than 260 ℃ at room temperature, such as aromatic hydrocarbon, aliphatic hydrocarbon, halogenated hydrocarbon, oxygenated hydrocarbon and the like, and are the most common pollutants discharged in petrochemical industry, pharmaceutical industry, printing industry, building material industry, spraying industry and the like. The volatile nature of VOC gases is intermediate and VOC gases are typically treated in a sealed environment. Existing VOC gas treatments employ end control techniques. The existing VOC gas treatment mode is generally divided into a physical method for recycling VOC and a biochemical reaction for oxidizing and decomposing VOC into nontoxic or low-toxic substances. In the existing VOC gas treatment process, the treatment efficiency is low, and the discharge is inconvenient.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a working system and a working method for treating VOCs by a biological method.
The invention achieves the above object by the following technical scheme, a working system for processing VOCs by biological method, comprising:
the device comprises a bearing bottom plate, wherein a first component is fixedly installed at one end of the upper surface of the bearing bottom plate, a second component is connected to the front face of the first component, a third component is connected to the front face of the second component, a fourth component is connected to the front face of the third component, a purifying exhaust pipe is fixedly installed at the top of the front face of the fourth component, and a fifth component is arranged on the front face of the fourth component;
the first assembly comprises a purifying connector, wherein the back surface of the purifying connector is fixedly connected with an air inlet pipeline, one side of the purifying connector is fixedly provided with a purifying assembly, and the bottom of the purifying connector is fixedly connected with a purifying support body;
the second assembly comprises a first spraying assembly, a first connecting assembly is fixedly arranged at the bottom end of the first spraying assembly, and a first sedimentation assembly is fixedly arranged at the bottom end of the first connecting assembly;
the third component comprises a second spraying component, a second connecting component is fixedly arranged at the bottom end of the second spraying component, and a second sedimentation component is fixedly arranged at the bottom end of the second connecting component;
and the fourth component comprises a third connecting component, and a third sedimentation component is fixedly arranged at the bottom end of the third connecting component.
Preferably, the purification assembly comprises a positioning body, one side fixedly connected with of positioning body is spacing, one side fixed mounting that the spacing body is close to the positioning body has the VOC purification plate, the VOC purification plate includes two first purification plates, two the equidistance is provided with a plurality of second purification plates between the first purification plate.
Preferably, the first connecting assembly comprises a first connecting body, the back of the first connecting body is fixedly connected with a first plug body, a first spraying clamping groove is formed in the top end of the first connecting body, a first ventilation groove and a first sealing groove are formed in the front face of the first connecting body, and a first water guide groove is formed in the bottom groove wall of the first ventilation groove.
Preferably, the first sedimentation component comprises a first sedimentation tank, a first connection clamping groove is formed in the top end of the first sedimentation tank, a first biological filter plate is fixedly arranged in the middle of an inner cavity of the first sedimentation tank, a first sealing plate is fixedly connected to one side of the first biological filter plate, a first sedimentation collecting tank is arranged at the bottom of the inner cavity of the first sedimentation tank, a second sealing plate is fixedly connected to one side of the first sedimentation collecting tank, a first overflow groove is formed in the bottom of one side of the first sedimentation tank, and a first purifying body is fixedly arranged in the first overflow groove.
Preferably, the second connecting component is identical to the first connecting component in structure, and the second precipitating component is identical to the first precipitating component in structure.
Preferably, the third connecting assembly comprises a third connecting body, a third air vent is formed in the back face of the third connecting body, the bottom end of the third connecting body is fixedly connected with a water inlet body, an exhaust body is integrally formed in the front face of the water inlet body, an air vent is formed in the bottom end of the exhaust body, and an exhaust connecting pipe is fixedly connected to the front face of the third connecting body.
Preferably, the third sedimentation component comprises a third sedimentation tank, a third connection clamping groove is formed in the top end of the third sedimentation tank, a water injection nozzle is fixedly connected to the top of one side of the third sedimentation tank, a third overflow groove is formed in the middle of one side of the third sedimentation tank, a third purifying body is fixedly arranged in the third overflow groove, and a sealing installation block is fixedly arranged at the bottom of one side of the third sedimentation tank.
Preferably, the purification exhaust pipe is fixedly connected with the exhaust connecting pipe, and a fourth purification body and a fifth purification body are fixedly arranged in the purification exhaust pipe.
Preferably, the fifth component comprises a water storage tank, a water pump and a water inlet pipe are fixedly arranged on one side of the top end of the water storage tank, and the water pump is connected with the first spraying component and the second spraying component through connecting water pipes. A method of operating a biological process VOC treatment process system comprising the steps of:
step one, implementation;
the VOC gas enters the air inlet pipeline, then enters between the VOC purifying plates, is primarily purified by the activated sludge in the first purifying plate and the second purifying plate, and then enters the second component through the ventilation groove;
step two, implementation;
the initially purified VOC gas enters the first ventilation groove, and the first spraying assembly sprays water flow through the spraying holes to absorb substances in the VOC gas;
the water flow absorbing the VOC gas falls into the first settling tank, firstly falls onto the first biological filter plate, the VOC in the water flow is absorbed through the biological film, the old film on the surface of the biological film falls into the first settling collection tank under the impact of the water flow, when the settled water flow is accumulated to a certain height, the settled water flow is discharged through the first overflow groove, and the discharged water flow is purified through the first purifying body and is discharged out of the first settling tank;
implementing the third step;
the second spraying component sprays water flow through the spraying holes to absorb substances in the VOC gas;
the water flow absorbing the VOC gas falls into the second sedimentation tank, firstly falls onto the second biological filter plate, the VOC in the water flow is absorbed through the biological film, the old film on the surface of the biological film falls into the second sedimentation collecting tank under the impact of the water flow, when the sedimented water flow is accumulated to a certain height, the sedimented water flow is discharged through the second overflow groove, and the discharged water flow is purified through the second purifying body and is discharged out of the second sedimentation tank;
step four, implementation;
the third purified VOC gas enters a third air vent groove, then flows into a third settling tank through an air guide groove and an inlet water body, and the flow in the third settling tank carries out fourth purification on the VOC gas;
the water flow of the third settling tank needs to be replaced frequently, a certain water injection quantity is kept, water flow is always injected, and redundant water flow is discharged out of the third settling tank through a third overflow groove;
step five, implementing;
the gas after four times of purification is led into an exhaust connecting pipe through an exhaust groove of the exhaust gas, then enters a purification exhaust pipe, and is purified by a fourth purification body and a fifth purification body and is discharged into the air.
The beneficial effects of the invention are as follows:
firstly, the purification assembly, the first spraying assembly and the second spraying assembly are utilized to carry out three-time purification treatment on the VOC gas, the microbiota is utilized to absorb the VOC, the overall treatment effect is better, the purification degree of the VOC is higher, and meanwhile, the purified gas is treated again through the purification exhaust pipe and then is directly discharged, so that the possibility of gas pollution is reduced.
Secondly, the invention utilizes the first biological filter plate and the second biological filter plate to biologically purify VOC in water flow, and changes the first sedimentation component and the second sedimentation component into a small biological purifying tank, so that the integral purifying degree is higher.
Thirdly, the invention utilizes the third precipitation component to carry out fourth purification on the gas, utilizes nutrient substances in water flow to culture microorganisms, carries out absorption and conversion on residual VOC in the gas, further improves the purification effect, and simultaneously absorbs moisture and possible peculiar smell in the gas through the purification exhaust pipe, thereby further reducing the emission influence.
Drawings
FIG. 1 is a schematic view of the overall assembly structure of the present invention;
FIG. 2 is a schematic view of a first component structure according to the present invention;
FIG. 3 is a schematic view of a first purifying component according to the present invention;
FIG. 4 is a schematic diagram of a purification plate structure of the present invention;
FIG. 5 is a schematic view of a second component structure of the present invention;
FIG. 6 is a schematic view of a first connecting assembly according to the present invention;
FIG. 7 is a schematic cross-sectional view of a first precipitation assembly according to the present invention;
FIG. 8 is a schematic view of a third component structure according to the present invention;
FIG. 9 is a schematic diagram of a fourth component structure according to the present invention;
FIG. 10 is a schematic cross-sectional view of a third coupling assembly of the present invention;
FIG. 11 is a schematic cross-sectional view of a third precipitation assembly according to the present invention.
In the figure: 1. a first component; 11. an air intake duct; 12. purifying the connector; 13. a purification assembly; 131. a positioning body; 132. a limiting body; 133. a VOC purification plate; 1331. a first purification plate; 1332. a second purification plate; 14. purifying the support body; 2. a second component; 21. a first spray assembly; 22. a first connection assembly; 221. a first connecting body; 222. a first plug body; 223. the first spraying clamping groove; 224. a first water guide groove; 225. a first vent groove; 226. a first seal groove; 23. a first precipitation assembly; 231. a first settling tank; 232. a first sealing plate; 233. a first overflow trough; 234. a first purifying body; 235. a second sealing plate; 236. a first connection slot; 237. a first biological filter plate; 238. a first sedimentation collection tank; 3. a third component; 31. a second spray assembly; 32. a second connection assembly; 33. a second precipitation assembly; 4. a fourth component; 41. a third connection assembly; 411. a third connector; 412. a third vent groove; 413. entering a water body; 414. exhausting gas; 415. an exhaust groove; 416. an exhaust connection pipe; 42. a third precipitation assembly; 421. a third settling tank; 422. a third connecting clamping groove; 423. a water injection nozzle; 424. a third overflow trough; 425. a third purification body; 426. sealing the mounting block; 5. purifying the exhaust pipe; 6. a fifth component; 7. the load-bearing bottom plate.
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.
Referring to fig. 1-11, a work system for biologically treating VOCs, comprising:
the utility model discloses a bottom plate 7, the one end fixed mounting who bears bottom plate 7 upper surface has first subassembly 1, the front of first subassembly 1 is connected with second subassembly 2, the front of second subassembly 2 is connected with third subassembly 3, the front of third subassembly 3 is connected with fourth subassembly 4, the positive top fixed mounting of fourth subassembly 4 has purification blast pipe 5, the front of fourth subassembly 4 is provided with fifth subassembly 6, second subassembly 2, third subassembly 3, fourth subassembly 4 and fifth subassembly 6 all with bottom plate 7 fixed connection.
As a technical optimization scheme of the invention, the first component 1 comprises a purifying connector 12, the back of the purifying connector 12 is fixedly connected with an air inlet pipeline 11, the outer wall of the air inlet pipeline 11 is arranged in a ladder shape and is convenient to connect and seal with an exhaust pipeline of VOC, a purifying component 13 is fixedly arranged on one side of the purifying connector 12, the purifying connector 12 is fixedly connected with the purifying component 13 through a bolt, a purifying support 14 is fixedly connected with the bottom of the purifying connector 12, the purifying connector 12 is fixedly connected with the purifying support 14 through a bolt, the purifying support 14 is fixedly connected with a bearing bottom plate 7, the front surface of the purifying connector 12 is provided with an air channel, the air channel is communicated with the air inlet pipeline 11, one side of the purifying connector 12 is provided with a component mounting groove, the purifying component 13 is arranged inside the component mounting groove, and the component mounting groove is mutually communicated with the air channel.
As a technical optimization scheme of the invention, the purifying component 13 comprises a positioning body 131, one side of the positioning body 131 is fixedly connected with a limiting body 132, the limiting body 132 is in a C shape, one side of the limiting body 132, which is close to the positioning body 131, is fixedly provided with a VOC purifying plate 133, the VOC purifying plate 133 is arranged in a groove of the limiting body 132 and is fixedly connected with the limiting body 132 through bolts, the VOC purifying plate 133 comprises two first purifying plates 1331, one surface of the first purifying plates 1331 is in a wave shape, three purifying bodies are arranged in convex parts of the wave-shaped surface, a plurality of second purifying plates 1332 are equidistantly arranged between the two first purifying plates 1331, the two surfaces of the second purifying plates 1332 are in a wave shape, the convex parts of the two surfaces of the second purifying plates 1332 are all provided with three purifying bodies, the purifying bodies adopt activated sludge, and various microorganism groups contained in the activated sludge are utilized to primarily purify VOC gas.
As a technical optimization scheme of the invention, the second component 2 comprises a first spraying component 21, a first connecting component 22 is fixedly arranged at the bottom end of the first spraying component 21, a first sedimentation component 23 is fixedly arranged at the bottom end of the first connecting component 22, and the first connecting component 22 is in through connection with the purifying connector 12.
As a technical optimization scheme of the invention, the first spray assembly 21 comprises a first spray shell, five first spray pipelines are fixedly arranged in the spray shell at equal intervals, and a plurality of spray holes are fixedly connected to the bottom of each first spray pipeline and are used for spraying purified water flow.
As a technical optimization scheme of the invention, the first connecting component 22 comprises a first connecting body 221, the back of the first connecting body 221 is fixedly connected with a first inserting body 222, the first inserting body 222 is inserted into a vent groove formed in the front of the purifying connecting body 12, the joint is sealed, a first spraying clamping groove 223 is formed in the top end of the first connecting body 221, the first spraying component 21 is installed in the first spraying clamping groove 223 in a sealing mode, a first vent groove 225 and a first sealing groove 226 are formed in the front of the first connecting body 221, the first vent groove 225 is arranged in the first sealing groove 226, a first water guide groove 224 is formed in the groove wall at the bottom end of the first vent groove 225, the first vent groove 225 penetrates through the first inserting body 222, a first inserting block is integrally cast at the bottom end of the first connecting body 221, and the first water guide groove 224 penetrates through the first inserting block.
As a technical optimization scheme of the invention, the first sedimentation component 23 comprises a first sedimentation tank 231, a first connecting clamping groove 236 is formed at the top end of the first sedimentation tank 231, a first connecting body 221 is arranged in the first connecting clamping groove 236 in a sealing way through a first plug-in block, a first biological filter plate 237 is fixedly arranged in the middle of the inner cavity of the first sedimentation tank 231, the first biological filter plate 237 is manufactured by adopting a biological membrane method, an ecological system consisting of aerobic bacteria, anaerobic bacteria, facultative bacteria, fungi, protozoa, algae and the like with high concentration of biological membranes is utilized and is attached to a carrier to form a filter plate, one side of the first biological filter plate 237 is fixedly connected with a first sealing plate 232, the first sealing plate 232 is in sealing connection with the first sedimentation tank 231, a first sedimentation collecting tank 238 is arranged at the bottom of the inner cavity of the first sedimentation tank 231, the first sedimentation collecting tank 238 is used for collecting sedimentation substances (aged biological membranes) in wastewater, one side of the first sedimentation collecting tank 238 is fixedly connected with a second sealing plate 235, the second sealing plate 235 is in sealing connection with the first sedimentation tank 231, a first overflow groove 233 is formed in the bottom of one side of the first sedimentation tank 231, the cross section shape (shown in fig. 7) of the first overflow groove 233 is in an inverted U shape, a first purifying body 234 is fixedly arranged in the first overflow groove 233, the first purifying body 234 is made of activated carbon materials, and microorganisms in overflowing water flow are filtered and adsorbed.
As a technical optimization scheme of the invention, the third component 3 comprises a second spraying component 31, a second connecting component 32 is fixedly arranged at the bottom end of the second spraying component 31, a second precipitation component 33 is fixedly arranged at the bottom end of the second connecting component 32, and the second connecting component 32 is in through connection with the first connecting component 22.
As a technical optimization scheme of the present invention, the second spray assembly 31 includes a first spray housing, three second spray pipes are fixedly installed in the spray housing at equal intervals, and a plurality of spray holes are fixedly connected to the bottom of each second spray pipe for spraying purified water flow.
As a technical optimization scheme of the present invention, the second connecting component 32 has the same structure as the first connecting component 22, and the second precipitating component 33 has the same structure as the first precipitating component 23.
As a technical optimization scheme of the invention, the second connecting component 32 comprises a second connecting body, the back of the second connecting body is fixedly connected with a second plug-in body, the second plug-in body is plugged in the first sealing groove 226 on the front of the first connecting body 221, a second spraying clamping groove is formed in the top end of the second connecting body, the second spraying component 31 is installed in the second spraying clamping groove in a sealing mode, a second ventilation groove and a second sealing groove are formed in the front of the second connecting body, the second ventilation groove penetrates through the second plug-in body, a second water guide groove is formed in the groove wall at the bottom end of the second ventilation groove, a second plug-in block is integrally cast at the bottom end of the second connecting body, and the second water guide groove penetrates through the second plug-in block.
As a technical optimization scheme of the invention, the second sedimentation component 33 comprises a second sedimentation tank, a second connecting clamping groove is formed in the top end of the second sedimentation tank, a second connector is installed inside the second connecting groove in a sealing mode through a second plug-in block, a second biological filter plate is fixedly installed in the middle of an inner cavity of the second sedimentation tank, the second biological filter plate is identical to the first biological filter plate 237 in structure, a third sealing plate is fixedly connected to one side of the second biological filter plate, the third sealing plate is in sealing connection with the second sedimentation tank, a second sedimentation collecting tank is installed at the bottom of the inner cavity of the second sedimentation tank, a fourth sealing plate is fixedly connected to one side of the second sedimentation collecting tank, the fourth sealing plate is in sealing connection with the second sedimentation tank, a second overflow groove is formed in the bottom of one side of the second sedimentation tank, the second overflow groove is identical to the first overflow groove 233 in structure, a second purification body is fixedly installed inside the second overflow groove, and the second purification body is made of activated carbon.
As a technical optimization scheme of the invention, the fourth component 4 comprises a third connecting component 41, a third sedimentation component 42 is fixedly arranged at the bottom end of the third connecting component 41, and the third connecting component 41 is in through connection with the second connecting component 32.
As a technical optimization scheme of the present invention, the third connection assembly 41 includes a third connection body 411, one end of the back surface of the third connection body 411 is installed inside the second sealing groove in a sealing manner, a third ventilation groove 412 is formed in the back surface of the third connection body 411, the bottom end of the third connection body 411 is fixedly connected with a water inlet body 413, an air guide groove is formed in the bottom groove wall of the third ventilation groove 412, which is close to one end of the water inlet body 413, the air guide groove penetrates through the water inlet body 413, an air exhaust body 414 is integrally formed in the front surface of the water inlet body 413, an air exhaust groove 415 is formed in the bottom end of the air exhaust body 414, the air exhaust groove 415 penetrates through the air exhaust 414, an air exhaust connecting pipe 416 is fixedly connected to the front surface of the third connection body 411, the air exhaust groove 415 is mutually communicated with an inner cavity of the air exhaust connecting pipe 416, a third sealing groove is formed in the front surface of the third connection body 411, and the third sealing groove is arranged outside the air exhaust connecting pipe 416.
As a technical optimization scheme of the invention, the third sedimentation component 42 comprises a third sedimentation tank 421, a third connection clamping groove 422 is formed in the top end of the third sedimentation tank 421, a third connecting body 411 is clamped inside the third connection clamping groove 422, a water inlet 413 and a gas exhaust 414 are both arranged inside the third sedimentation tank 421, a water injection nozzle 423 is fixedly connected to the top of one side of the third sedimentation tank 421, the water injection nozzle 423 is used for injecting water into the third sedimentation tank 421, the water injection nozzle 423 is in a sealing state when water injection is not needed, a third overflow groove 424 is formed in the middle of one side of the third sedimentation tank 421, the third overflow groove 424 is in an inverted U shape, a third purifying body 425 is fixedly arranged inside the third overflow groove 424, the third purifying body 425 is made of active carbon materials, a sealing installation block 426 is fixedly arranged at the bottom of one side of the third sedimentation tank 421, a water drainage groove is formed at the bottom of the third sedimentation tank 421, and the sealing installation block 426 is installed inside the water drainage groove.
As a technical optimization scheme of the invention, the purification exhaust pipe 5 is fixedly connected with the exhaust connecting pipe 416, one end of the purification exhaust pipe 5 is hermetically arranged in the third sealing groove, a fourth purification body and a fifth purification body are fixedly arranged in the purification exhaust pipe 5, the fourth purification body is an activated carbon filter core, the fifth purification body is arranged on a physical drying agent, and activated alumina is adopted for absorbing moisture in exhaust gas.
As a technical optimization scheme of the invention, the fifth component 6 comprises a water storage tank, a water suction pump and a water inlet pipe are fixedly arranged on one side of the top end of the water storage tank, the water suction pump is connected with the first spraying component 21 and the second spraying component 31 through connecting water pipes, the water suction pump supplies water to the first spraying component 21 and the second spraying component 31 through the connecting water pipes, water flow in the water storage tank is set to be nutrient water beneficial to microorganism growth and propagation, and nitrogen, phosphorus and other nutrient substances are added.
When in use, the invention is used;
please refer to fig. 1 to 11;
the device is assembled as shown in fig. 1, then nutrient water is injected into the water storage tank through a water inlet pipe, and meanwhile, a first overflow groove 233 of a first sedimentation tank 231, a second overflow groove of a second sedimentation tank and a third overflow groove 424 of a third sedimentation tank 421 are connected with an external pipeline, and overflowed water flows are respectively collected;
then connecting the air inlet pipe 11 with the discharge pipe of the VOC gas;
performing operation one;
the VOC gas enters the air intake duct 11, then enters between the VOC purification plates 133, is primarily purified by the activated sludge inside the first and second purification plates 1331 and 1332, and then enters the second module 2 through the aeration tank;
carrying out second operation;
the primarily purified VOC gas enters the first ventilation groove 225, and the first spraying component 21 sprays water flow through the spraying holes to absorb substances in the VOC gas;
the water flow absorbing the VOC gas falls into the first settling tank 231 and firstly falls onto the first biological filter plate 237, VOC in the water flow is absorbed through a biological film, an old film on the surface of the biological film falls into the first settling collection tank 238 under the impact of the water flow, when the settled water flow is accumulated to a certain height, the settled water flow is discharged through the first overflow groove 233, the discharged water flow is purified through the first purifying body 234, and the discharged water flow is discharged out of the first settling tank 231;
carrying out an operation III;
the secondarily purified VOC gas enters the second ventilation groove, and the second spraying component 31 sprays water flow through the spraying holes to absorb substances in the VOC gas;
the water flow absorbing the VOC gas falls into the second sedimentation tank, firstly falls onto the second biological filter plate, the VOC in the water flow is absorbed through the biological film, the old film on the surface of the biological film falls into the second sedimentation collecting tank under the impact of the water flow, when the sedimented water flow is accumulated to a certain height, the sedimented water flow is discharged through the second overflow groove, and the discharged water flow is purified through the second purifying body and is discharged out of the second sedimentation tank;
carrying out operation IV;
the VOC gas purified for the third time enters a third air vent groove 412, then enters the water flow of a third sedimentation tank 421 through an air guide groove and a water inlet 413, and the water flow in the third sedimentation tank 421 carries out the fourth purification on the VOC gas;
the water flow of the third settling tank 421 needs to be replaced frequently, a certain water injection amount is maintained, water flow is always injected, and redundant water flow is discharged out of the third settling tank 421 through the third overflow groove 424;
carrying out operation five;
the four purified gas is introduced into the exhaust connection pipe 416 through the exhaust groove 415 of the exhaust gas 414, then enters the purification exhaust pipe 5, and is purified by the fourth purification body and the fifth purification body and discharged into the air.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
1. A work system for biologically treating VOCs, comprising:
the device comprises a bearing bottom plate (7), wherein a first component (1) is fixedly installed at one end of the upper surface of the bearing bottom plate (7), a second component (2) is connected to the front surface of the first component (1), a third component (3) is connected to the front surface of the second component (2), a fourth component (4) is connected to the front surface of the third component (3), a purifying exhaust pipe (5) is fixedly installed at the top of the front surface of the fourth component (4), and a fifth component (6) is arranged on the front surface of the fourth component (4);
the device comprises a first component (1), wherein the first component (1) comprises a purification connecting body (12), an air inlet pipeline (11) is fixedly connected to the back surface of the purification connecting body (12), a purification component (13) is fixedly arranged on one side of the purification connecting body (12), and a purification supporting body (14) is fixedly connected to the bottom of the purification connecting body (12);
the second assembly (2), the second assembly (2) includes the first spraying assembly (21), the bottom of the first spraying assembly (21) is fixedly equipped with the first connecting assembly (22), the bottom of the first connecting assembly (22) is fixedly equipped with the first precipitation assembly (23);
the third assembly (3), the third assembly (3) comprises a second spraying assembly (31), a second connecting assembly (32) is fixedly arranged at the bottom end of the second spraying assembly (31), and a second sedimentation assembly (33) is fixedly arranged at the bottom end of the second connecting assembly (32);
the fourth component (4), the fourth component (4) comprises a third connecting component (41), and a third sedimentation component (42) is fixedly arranged at the bottom end of the third connecting component (41);
the purifying assembly (13) comprises a positioning body (131), one side of the positioning body (131) is fixedly connected with a limiting body (132), one side, close to the positioning body (131), of the limiting body (132) is fixedly provided with a VOC purifying plate (133), the VOC purifying plate (133) comprises two first purifying plates (1331), one surface of each first purifying plate (1331) is provided with a wave shape, three purifying bodies are arranged in protruding parts of the wave-shaped surfaces, a plurality of second purifying plates (1332) are arranged between the two first purifying plates (1331) at equal intervals, two surfaces of each second purifying plate (1332) are provided with waves, the protruding parts of the two surfaces of each second purifying plate (1332) are provided with three purifying bodies, and the purifying bodies adopt activated sludge;
the first connecting assembly (22) comprises a first connecting body (221), a first plug-in connector (222) is fixedly connected to the back of the first connecting body (221), a first spraying clamping groove (223) is formed in the top end of the first connecting body (221), a first ventilation groove (225) and a first sealing groove (226) are formed in the front of the first connecting body (221), and a first water guide groove (224) is formed in the groove wall of the bottom end of the first ventilation groove (225);
the first sedimentation component (23) comprises a first sedimentation tank (231), a first connection clamping groove (236) is formed in the top end of the first sedimentation tank (231), a first biological filter plate (237) is fixedly arranged in the middle of the inner cavity of the first sedimentation tank (231), a first sealing plate (232) is fixedly connected to one side of the first biological filter plate (237), a first sedimentation collecting tank (238) is arranged at the bottom of the inner cavity of the first sedimentation tank (231), a second sealing plate (235) is fixedly connected to one side of the first sedimentation collecting tank (238), a first overflow groove (233) is formed in the bottom of one side of the first sedimentation tank (231), and a first purifying body (234) is fixedly arranged in the first overflow groove (233);
the second connecting component (32) has the same structure as the first connecting component (22), and the second precipitating component (33) has the same structure as the first precipitating component (23); the third connecting assembly (41) comprises a third connecting body (411), a third air vent groove (412) is formed in the back face of the third connecting body (411), the bottom end of the third connecting body (411) is fixedly connected with a water inlet body (413), an exhaust body (414) is integrally formed in the front face of the water inlet body (413), an exhaust groove (415) is formed in the bottom end of the exhaust body (414), and an exhaust connecting pipe (416) is fixedly connected to the front face of the third connecting body (411);
the third sedimentation component (42) comprises a third sedimentation tank (421), a third connection clamping groove (422) is formed in the top end of the third sedimentation tank (421), a water injection nozzle (423) is fixedly connected to the top of one side of the third sedimentation tank (421), a third overflow groove (424) is formed in the middle of one side of the third sedimentation tank (421), a third purifying body (425) is fixedly arranged in the third overflow groove (424), a sealing mounting block (426) is fixedly arranged at the bottom of one side of the third sedimentation tank (421), gas is purified for the fourth time by the third sedimentation component, and residual VOC in the gas is absorbed and converted by nutrient substance culture microorganisms in water flow; the purification exhaust pipe (5) is fixedly connected with the exhaust connecting pipe (416), a fourth purification body and a fifth purification body are fixedly installed inside the purification exhaust pipe (5), the fourth purification body is an activated carbon filter core, and the fifth purification body is a physical drying agent.
2. The biological treatment of VOCs according to claim 1, wherein: the fifth component (6) comprises a water storage tank, wherein a water pump and a water inlet pipe are fixedly arranged on one side of the top end of the water storage tank, and the water pump is connected with the first spraying component (21) and the second spraying component (31) through connecting water pipes.
3. A method of operating a biological VOC treatment system according to claim 1 comprising the steps of:
step one, implementation;
the VOC gas enters the air inlet pipeline (11), then enters between the VOC purifying plates (133), is primarily purified by the activated sludge in the first purifying plate (1331) and the second purifying plate (1332), and then enters the second component (2) through the ventilation groove;
step two, implementation;
the primarily purified VOC gas enters the first ventilation groove (225), and the first spraying component (21) sprays water flow through the spraying holes to absorb substances in the VOC gas;
the water flow absorbing the VOC gas falls into the first settling tank (231), firstly falls onto the first biological filter plate (237), the VOC in the water flow is absorbed through the biological film, the old film on the surface of the biological film falls into the first settling collection tank (238) under the impact of the water flow, when the settled water flow is accumulated to a certain height, the settled water flow is discharged through the first overflow groove (233), and the discharged water flow is purified through the first purifying body (234) and is discharged out of the first settling tank (231);
implementing the third step;
the VOC gas purified for the second time enters the second ventilation groove, and the second spraying component (31) sprays water flow through the spraying holes to absorb substances in the VOC gas;
the water flow absorbing the VOC gas falls into the second sedimentation tank, firstly falls onto the second biological filter plate, the VOC in the water flow is absorbed through the biological film, the old film on the surface of the biological film falls into the second sedimentation collecting tank under the impact of the water flow, when the sedimented water flow is accumulated to a certain height, the sedimented water flow is discharged through the second overflow groove, and the discharged water flow is purified through the second purifying body and is discharged out of the second sedimentation tank;
step four, implementation;
the VOC gas purified for the third time enters a third air vent groove (412), then enters a water flow of a third sedimentation tank (421) through an air guide groove and an inflow water body (413), and the water flow in the third sedimentation tank (421) carries out fourth purification on the VOC gas;
the water flow of the third sedimentation tank (421) needs to be frequently replaced, a certain water injection amount is kept, water flow is always injected, and redundant water flow is discharged out of the third sedimentation tank (421) through a third overflow groove (424);
step five, implementing;
the gas after four times of purification is led into an exhaust connecting pipe (416) through an exhaust groove (415) of the exhaust gas (414), then enters a purification exhaust pipe (5), and is purified by a fourth purification body and a fifth purification body and discharged into the air.
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