CN212068338U - Integrated bio-trickling filtration waste gas treatment equipment - Google Patents
Integrated bio-trickling filtration waste gas treatment equipment Download PDFInfo
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- CN212068338U CN212068338U CN202020657877.9U CN202020657877U CN212068338U CN 212068338 U CN212068338 U CN 212068338U CN 202020657877 U CN202020657877 U CN 202020657877U CN 212068338 U CN212068338 U CN 212068338U
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Abstract
The utility model relates to an integrated biological trickling filtration waste gas treatment device, which comprises a spray washing pretreatment section and a biological trickling filtration depth treatment section which are closely connected, wherein the spray washing pretreatment section and the biological trickling filtration depth treatment section are blocked by a clapboard; the bottoms of the spray washing pretreatment section and the biological trickling filtration advanced treatment section are water storage layers, a gas distribution layer is arranged above the water storage layers, grid plates are arranged above the gas distribution layer, a packing layer is arranged above the grid plates, and a spray device is arranged above the packing layer; an air inlet pipeline is arranged at the top of the front end of the spray washing pretreatment section, and the air distribution pipeline crosses the partition plate and is connected with the top of the front end of the biological trickling filtration advanced treatment section; the top of the back end of the biotrickling filter advanced treatment section is connected with an air outlet. The utility model discloses optimize equipment structure, it is too big effectively to solve area, problem that microbiological treatment efficiency is low.
Description
Technical Field
The utility model discloses an environmental protection equipment field, especially a waste gas treatment equipment.
Background
With the improvement of urbanization level and industrialization degree, the aggravation of air pollution becomes a global problem to be solved urgently, and industrial waste gas discharged by various production enterprises is an important source of air pollutants. If a large amount of industrial waste gas is discharged into the atmosphere after reaching the standard without treatment, the quality of the atmospheric environment is inevitably reduced, serious harm is brought to the human health, and huge loss is caused to national economy. After toxic, harmful and peculiar smell substances in the industrial waste gas can enter a human body through a respiratory tract and skin, the long-term low-concentration or short-term high-concentration contact can cause the temporary and permanent pathological changes of systems and organs such as the breath, the blood, the liver and the like of the human body. Meanwhile, for malodorous gases, the research on malodorous gas pollution treatment is started abroad as early as the end of the 20 th century and abundant theoretical knowledge and practical experience are accumulated. The research on the investigation, test and standard of malodorous gas pollution is carried out in the 80 th century in China, and the research on the deodorization technology is carried out from the 90 th century in 20 th century. In the field of waste gas treatment, a biological method is a waste gas treatment method developed based on the metabolic mechanism of microorganisms and considering the characteristics of waste gas, and has the advantages of no secondary pollution, high treatment capacity, low operation cost, good purification effect, low energy consumption and the like.
The industrial waste gas often contains toxic, harmful and peculiar smell pollutants, and if the pollutants are not effectively treated, the environment is seriously influenced. The existing biological trickling filter for treating waste gas mainly combines a washing and biological trickling filter treatment process, but the existing biological trickling filter has the defects of overlarge floor area, uneven gas distribution, low microbial treatment efficiency, additional addition of nutrient solution to microbes and the like, and is less in use.
SUMMERY OF THE UTILITY MODEL
The utility model provides a main technical problem promptly provides an integration bio-trickling filter exhaust-gas treatment equipment, and its optimization equipment structure effectively solves area too big, problem that microbiological treatment efficiency is low.
The technical means adopted by the utility model are as follows. The integrated biological trickling filtration waste gas treatment equipment comprises a spray washing pretreatment section and a biological trickling filtration deep treatment section which are closely connected, wherein the spray washing pretreatment section and the biological trickling filtration deep treatment section are blocked by a partition plate; the bottom of the spray washing pretreatment section is a first water storage layer, a first air distribution layer is arranged above the first water storage layer, the bottom of the biological trickling filtration advanced treatment section is a second water storage layer, and a second air distribution layer is arranged above the second water storage layer; a first grid plate is arranged above the first gas distribution layer, a first packing layer is arranged above the first grid plate, and a spraying device is arranged above the first packing layer; the top of the front end of the spraying and washing pretreatment section is provided with an air inlet pipeline, the air inlet pipeline passes through the first filler layer and is introduced into the first air distribution layer through the first grating plate, the top of the rear end of the spraying and washing pretreatment section is connected with an air distribution pipeline, and the air distribution pipeline crosses the partition plate and is connected with the top of the front end of the biological trickling filtration advanced treatment section; a second grid plate is arranged above the second gas distribution layer, a second packing layer is arranged above the second grid plate, and a spraying device is arranged above the second packing layer; the air distribution pipeline passes through the second filler layer and is introduced into the second air distribution layer through the second grating plate; the top of the back end of the biotrickling filter advanced treatment section is connected with an air outlet.
The first packing layer is made of PP multi-face hollow spheres, and the second packing layer is a composite packing layer made of volcanic rock, bamboo charcoal, bark and PP multi-face hollow spheres.
The aperture of the second grating plate is reduced from the front end to the rear end of the biological trickling filter deep treatment section in sequence.
The spraying device comprises a spraying pipe which is transversely arranged, a plurality of spray heads are arranged below the spraying pipe, the spraying pipe is connected with a circulating pump, and the spraying pipe of the biological trickling filtration advanced treatment section is also connected with a water filter.
This spray washing preliminary treatment section and biotrickling filter degree of depth processing section top set up a plurality of filler openings, spray washing preliminary treatment section side and lie in highly setting a plurality of discharge openings of first filler layer bottom, and biotrickling filter degree of depth processing section side lies in highly setting a plurality of discharge openings of second filler layer bottom.
The spraying and washing pretreatment section is provided with a pH control device and a liquid level control device, and the bio-trickling filtration advanced treatment section is provided with a pH control device, a liquid level control device and a temperature control device.
The top of the back end of the biotrickling filter advanced treatment section is connected with an air outlet through a demister.
The length of the second packing layer is more than 3 times of the length of the first packing layer.
The lower parts of the first grating plate and the second grating plate are fixed with the bottom by a plurality of support columns.
The beneficial effects of the utility model are as follows.
1. The structure of the device is optimized, and the problems of overlarge occupied area and low microorganism treatment efficiency are effectively solved.
2. Because the ideal removal rate can be achieved only by making the circulating spraying liquid and the waste gas in opposite contact, the outlet of the spraying and washing pretreatment section directly passes through the second packing layer through the gas distribution pipeline and is communicated to the second gas distribution layer of the biological trickling filtration advanced treatment section, the space occupied by the gas distribution channel can be directly saved, and the occupied area of the equipment is effectively reduced.
3. The second grid plate 12 with gradually changed aperture is used, a large-aperture grid plate is adopted near the air inlet, a small-aperture grid plate is adopted near the air outlet, most of waste gas is distributed in the second filler layer far away from the air outlet, the internal drainage area is eliminated, the waste gas can be effectively and uniformly distributed and pass through the whole second filler layer, and the biomembrane utilization rate and the waste gas treatment efficiency are improved.
Drawings
Fig. 1 is a schematic side view of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic side perspective structure view of the present invention.
Fig. 4 is a schematic top view of the second grid plate of the present invention.
Fig. 5 is a schematic view of the front structure of the intake duct side of the present invention.
Detailed Description
As shown in figures 1-5, the utility model relates to an integration bio-trickling filter exhaust-gas treatment equipment, including the washing preliminary treatment section 1 and the bio-trickling filter degree of depth processing section 2 that closely link to each other spray, should spray and block the connection through baffle 26 between washing preliminary treatment section 1 and the bio-trickling filter degree of depth processing section 2, form a whole set of complete technology treatment equipment.
The bottom of the spray washing pretreatment section 1 is provided with a first water storage layer 5, a first air distribution layer 4 is arranged above the first water storage layer 5, the bottom of the biological trickling filtration deep treatment section 2 is provided with a second water storage layer 10, and a second air distribution layer 11 is arranged above the second water storage layer 10; a first grid plate 7 is arranged above the first air distribution layer 4, a first packing layer 8 is arranged above the first grid plate 7, a spraying device is arranged above the first packing layer 8, and a spraying layer 27 is formed between the spraying device and the first packing layer; the top of the front end of the spray washing pretreatment section 1 is provided with an air inlet pipeline 3, the air inlet pipeline 3 passes through a first filler layer 8 and is introduced into a first air distribution layer 4 through a first grid plate 7, the top of the rear end of the spray washing pretreatment section 1 is connected with an air distribution pipeline 9, and the air distribution pipeline 9 crosses a partition plate 26 and is connected with the top of the front end of the biological trickling filtration depth treatment section 2; a second grid plate 12 is arranged above the second air distribution layer 11, a second filler layer 13 is arranged above the second grid plate 12, and a spraying device is arranged above the second filler layer 13; a spraying layer 27 is formed between the spraying device and the second filler layer. The gas distribution pipeline 9 passes through the second filler layer 13 and is introduced into the second gas distribution layer 11 through the second grid plate 12; the lower parts of the first grating plate 7 and the second grating plate 12 are fixed with the bottom by a plurality of supporting columns 6. The top of the back end of the biological trickling filtration advanced treatment section 2 is connected with an air outlet 15 through a demister 14.
The first packing layer 8 can be a PP multi-face hollow sphere as a physical packing layer, the second packing layer 13 can be a biological composite packing layer, and the packing material can be a mixture of volcanic rock, bamboo charcoal, bark and PP multi-face hollow spheres.
The aperture of the second grid plate 12 decreases from the front end to the rear end of the biotrickling filter advanced treatment section 2. The length of the second packing layer 13 can be more than 3 times of the length of the first packing layer 8, so that the deep biotrickling filter treatment section 2 has enough length, the distance between the gas distribution pipeline 9 and the gas outlet 15 is longer, and enough treatment space is provided.
The spraying device comprises a spraying pipe 17 which is transversely arranged, a plurality of spray heads 16 are arranged below the spraying pipe 17, the spraying pipe 17 is connected with a circulating pump 21, water can be supplied from the outside or can be circulating water, wherein the spraying pipe 17 of the biological trickling filtration advanced treatment section 2 is also connected with a water filter 25 because of high requirement on water quality, so that the water quality is filtered in advance.
Should spray washing pretreatment section 1 and the 2 tops of biotrickling filter degree of depth processing section and set up a plurality of filler openings 18, spray washing pretreatment section 1 side and lie in highly setting up a plurality of discharge openings 19 of first packing layer 8 bottom, the 2 sides of biotrickling filter degree of depth processing section lie in highly setting up a plurality of discharge openings 19 of second packing layer 13 bottom. Can conveniently carry out filling and unloading.
The spraying washing pretreatment section 1 is provided with a pH control device 22 and a liquid level control device 23 at proper positions, and the biological trickling filtration advanced treatment section 2 is provided with a pH control device 22, a liquid level control device 23 and a temperature control device 24 at proper positions. The pH control device can monitor the pH value of the liquid and can also add medicine to adjust the pH value. And, a manhole 20 may be further provided at a necessary position of the equipment. The relevant devices and apparatuses are all the existing mature technologies.
The utility model discloses but wide application in refuse treatment factory, sewage treatment plant, feed processing, livestock-raising, chemical industry, pharmacy etc. can produce the trade of peculiar smell or waste gas, handle the waste gas that its produced. The treatment process adopts a combined process idea of 'spray washing pretreatment + biological trickling filtration advanced treatment' to realize the treatment of the waste gas.
The waste gas treatment equipment comprises a spraying washing pretreatment section and a biological trickling filter advanced treatment section, wherein the two process sections are connected in front and back to form a set of complete process treatment equipment. Waste gas enters an air inlet pipeline 3 through a collecting pipeline, the air inlet pipeline 3 is communicated with a first air distribution layer 4 between a first water storage layer 5 and a first grid plate 7, the first grid plate 7 is supported and fixed by a support column 6, then the waste gas enters a first packing layer 8 of a spraying and washing pretreatment section 1 through the first air distribution layer, circulating spray liquid can be pumped into a spray pipe 17 and a spray head 16 through a circulating pump 21, and the circulating spray liquid is sprayed from the topThe waste gas passes through the first packing layer 8 from bottom to top and is fully contacted with the circulating spray liquid, so that the humidity is increased and the waste gas components which are easy to dissolve in water are transferred from a gas phase to a liquid phase. The first filler layer 8 is supported and fixed by the first grid plate 7 below. When the pH value of the circulating spraying liquid of the spraying and washing pretreatment section 1 reaches a certain value, the circulating spraying liquid can be automatically discharged through the water discharge valve, and meanwhile, the floating ball of the first water storage layer 5 descends, and at the moment, new circulating spraying liquid can be supplemented into the first water storage layer 5 of the spraying and washing pretreatment section 1 until the preset liquid level. The waste gas passing through the first filler layer 8 of the spraying and washing pretreatment section 1 is sent to the second air distribution layer 11 between the second water storage layer 10 of the biological trickling filtration deep treatment section 2 and the second grid plate 12 with gradually-changed aperture through the air distribution pipeline 9, the circulating spraying liquid of the section firstly passes through the water filter 25 to filter impurities in water and prevent the spray head 16 from being blocked, then the circulating pump 21 pumps the waste gas into the spray pipe 17 and the spray head 16 to spray from top to bottom, the waste gas firstly and uniformly passes through the second grid plate 12 with gradually-changed aperture between the second air distribution layer 11 and the second filler layer 13 from the second air distribution layer 11 from bottom to top, the aperture of the grid (as shown in figure 4) is larger when being close to the air inlet area of the biological trickling filtration deep treatment section 2 and is smaller when being close to the air outlet 15, the aperture of the grid is gradually reduced from the air inlet area to the outlet area, so that the waste gas does not generate, it is possible to pass through the entire second filler layer 13 uniformly. The gradual change aperture grid plate 12 is supported and fixed by the support column 6 below. The waste gas then passes through the second packing layer 13 uniformly, the second packing layer can be formed by mixing volcanic rock, bamboo charcoal, bark and PP multi-face hollow spheres uniformly, the bamboo charcoal and the bark can provide stable carbon source and nutrient substance for the microorganisms forming the biological membrane when the concentration of the waste gas is unstable or the equipment is stopped, the activity of the microorganisms is kept, the PP multi-face hollow spheres are mixed in the composite packing, the stacking density of the composite packing can be prevented from being too high, the porosity of the composite packing is increased, the circulation resistance is reduced, meanwhile, the surface area of the composite packing is increased, and therefore the biological membrane is in full contact with the waste gas and reacts. The humidified waste gas is easy to be captured by biological membrane, and the components of the waste gas are transferred to the surface of the biological membrane from liquid phase, absorbed by microorganism and converted into nontoxic and nontoxicHarmful H2O、CO2Salts, and the like. The effect of the circulating spray liquid at this section is to provide a living environment with suitable humidity for the microorganisms in the second filler layer 13, and simultaneously, the substances absorbed and converted by the microorganisms can be taken away from the biological membrane. In this section, a suitable living environment for the microorganisms is maintained by a pH control device 22 and a temperature control device 24. When the pH value of the circulating spray liquid of the biological trickling filtration depth treatment section 2 deviates from a preset range, the circulating spray liquid is automatically discharged through a drain valve, meanwhile, a water storage layer floating ball descends, and new circulating spray liquid is supplemented into a second water storage layer 10 of the biological trickling filtration depth treatment section 2 till the preset liquid level; when the temperature control device 24 of the biotrickling filter deep treatment section 2 monitors that the temperature is lower than a preset range, the circulating spray liquid can be heated by the heating rod; when the temperature is higher than the preset range, the current circulating spray liquid can be discharged through the drain valve, and then the new normal-temperature circulating spray liquid is supplemented. The gas treated by the biological film in the second filler layer 13 is discharged after moisture is removed through the defogging layer 14 at the front end of the air outlet 15.
Claims (9)
1. The integrated biotrickling waste gas treatment equipment is characterized by comprising a spraying and washing pretreatment section (1) and a biotrickling advanced treatment section (2) which are closely connected, wherein the spraying and washing pretreatment section (1) and the biotrickling advanced treatment section (2) are blocked by a partition plate (26);
the bottom of the spray washing pretreatment section (1) is provided with a first water storage layer (5), a first air distribution layer (4) is arranged above the first water storage layer (5), the bottom of the biological trickling filtration advanced treatment section (2) is provided with a second water storage layer (10), and a second air distribution layer (11) is arranged above the second water storage layer (10);
a first grid plate (7) is arranged above the first air distribution layer (4), a first packing layer (8) is arranged above the first grid plate (7), and a spraying device is arranged above the first packing layer (8); the top of the front end of the spraying and washing pretreatment section (1) is provided with an air inlet pipeline (3), the air inlet pipeline (3) passes through a first packing layer (8) and is introduced into a first air distribution layer (4) through a first grating plate (7), the top of the rear end of the spraying and washing pretreatment section (1) is connected with an air distribution pipeline (9), and the air distribution pipeline (9) crosses a partition plate (26) and is connected with the top of the front end of the biological trickling filtration depth treatment section (2);
a second grid plate (12) is arranged above the second air distribution layer (11), a second packing layer (13) is arranged above the second grid plate (12), and a spraying device is arranged above the second packing layer (13); the gas distribution pipeline (9) passes through the second packing layer (13) and is introduced into the second gas distribution layer (11) through the second grid plate (12);
the top of the back end of the biological trickling filtration advanced treatment section (2) is connected with an air outlet (15).
2. The integrated bio-trickling filtration waste gas treatment device according to claim 1, wherein the first packing layer (8) is a PP multi-face hollow sphere, the second packing layer (13) is a composite packing layer, and the packing material is volcanic rock, bamboo charcoal, bark, or PP multi-face hollow sphere.
3. The integrated biotrickling exhaust gas treatment device according to claim 1, characterized in that the second grid plate (12) has a decreasing pore size from the front end to the rear end of the biotrickling advanced treatment section (2).
4. The integrated biotrickling waste gas treatment equipment as recited in claim 1, characterized in that the spraying device comprises a horizontally arranged spraying pipe (17), a plurality of spray heads (16) are arranged below the spraying pipe (17), the spraying pipe (17) is connected with a circulating pump (21), wherein the spraying pipe (17) of the biotrickling advanced treatment section (2) is further connected with a water filter (25).
5. The integrated biotrickling waste gas treatment device according to claim 1, characterized in that the top of the spray washing pretreatment section (1) and the biotrickling advanced treatment section (2) is provided with a plurality of filling openings (18), the side of the spray washing pretreatment section (1) is provided with a plurality of discharge openings (19) at the height of the bottom of the first packing layer (8), and the side of the biotrickling advanced treatment section (2) is provided with a plurality of discharge openings (19) at the height of the bottom of the second packing layer (13).
6. The integrated biotrickling waste gas treatment device according to claim 1, characterized in that the spray washing pretreatment stage (1) is provided with a pH control device (22) and a liquid level control device (23), and the biotrickling advanced treatment stage (2) is provided with a pH control device (22) and a liquid level control device (23) and a temperature control device (24).
7. The integrated biotrickling waste gas treatment device according to claim 1, characterized in that the back end top of the biotrickling advanced treatment section (2) is connected with the gas outlet (15) through a demister (14).
8. Integrated biotrickling exhaust gas treatment device according to claim 1, characterized in that the length of the second packing layer (13) is more than 3 times the length of the first packing layer (8).
9. The integrated biotrickling exhaust gas treatment device according to claim 1, characterized in that the first grid plate (7) and the second grid plate (12) are fixed to the bottom by a plurality of support columns (6) below.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020657877.9U CN212068338U (en) | 2020-04-26 | 2020-04-26 | Integrated bio-trickling filtration waste gas treatment equipment |
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| CN202020657877.9U CN212068338U (en) | 2020-04-26 | 2020-04-26 | Integrated bio-trickling filtration waste gas treatment equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717637A (en) * | 2021-03-30 | 2021-04-30 | 霍邱县荣益喜洋洋有机肥有限公司 | Waste gas treatment system in fertilizer production process |
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2020
- 2020-04-26 CN CN202020657877.9U patent/CN212068338U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112717637A (en) * | 2021-03-30 | 2021-04-30 | 霍邱县荣益喜洋洋有机肥有限公司 | Waste gas treatment system in fertilizer production process |
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