Biochemical sewage waste gas deodorization processing apparatus
Technical Field
The utility model relates to the field of waste gas treatment devices, in particular to a biochemical sewage waste gas deodorization treatment device.
Background
In the anaerobic treatment process of the sewage, sulfate radicals are reduced into hydrogen sulfide by sulfate radical reducing bacteria, wherein part of the hydrogen sulfide is released in the form of waste gas to become malodorous pollutants. Besides hydrogen sulfide, odorous substances generated in the sewage treatment process can also contain various organic odorous gases such as ammonia gas, mercaptan and the like, and are difficult to treat. Especially, the biochemical sewage and waste gas components are complex, and a single process cannot treat all the complex waste gas components or has low treatment efficiency, so that the biochemical sewage and waste gas deodorization treatment device is necessary to realize high-efficiency treatment of the biochemical sewage and waste gas and has good treatment effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a biochemical sewage waste gas deodorization treatment device which can realize high-efficiency treatment of biochemical sewage waste gas and has a good treatment effect.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a biochemical sewage waste gas deodorization processing apparatus, includes first caustic wash tower, biotrickling filter, second caustic wash tower, exhaust apparatus, the biotrickling filter sets up on first caustic wash tower right side, biotrickling filter right side is provided with second caustic wash tower, exhaust apparatus sets up on second caustic wash tower right side.
Further, first alkaline washing tower includes first air outlet, a plurality of first people's pore-vision mirror, first defogging layer, first spray set, first packing layer, first air intake, first circulation water tank, first air outlet sets up in first alkaline washing tower upper end, and a plurality of first people's pore-vision mirror set up in first alkaline washing tower left side, first alkaline washing tower outside upper end is provided with first except that the defogging layer, be provided with first packing layer in the middle of the first alkaline washing tower outside, be provided with first spray set on the first alkaline washing tower, first alkaline washing tower front end is provided with first air intake, first alkaline washing tower lower extreme left side is provided with first circulation water tank.
Further, the second alkaline washing tower includes second air outlet, a plurality of second manhole sight glasses, second defogging layer, second spray set, second packing layer, second air intake, second circulation tank, the second air outlet sets up in second alkaline washing tower upper end, and a plurality of second manhole sight glasses set up in second alkaline washing tower left side, second alkaline washing tower outside upper end is provided with the second defogging layer, be provided with the second packing layer in the middle of the second alkaline washing tower outside, be provided with second spray set on the second alkaline washing tower, second alkaline washing tower front end is provided with the second air intake, second alkaline washing tower lower extreme left side is provided with second circulation tank.
Further, biological trickling filter includes third air inlet, prewashing device filler, biological treatment device filler, biological treatment device includes gas distribution pipeline, third air outlet, overhauls manhole, support, backup pad, third spray set, prewashing device sets up in biological trickling filter left side, prewashing device filler sets up in the prewashing device, the third air inlet sets up in the prewashing device upper end, biological treatment device sets up on biological trickling filter right side, the third spray set sets up in biological treatment device upper end, it sets up in biological treatment device upper end to overhaul the manhole, biological treatment device filler sets up in biological treatment device, the biological treatment device lower extreme is provided with the support, be provided with the backup pad in the support.
Further, exhaust apparatus includes fan, aiutage, the aiutage sets up in the fan upper end.
Compared with the prior art, the utility model has the beneficial effects that:
1. the collected waste gas firstly enters a first alkaline washing tower, and the absorption liquid is circularly absorbed in the tower through an alkaline washing circulating device, so that H2S and acidic odor can be effectively removed. After the absorption of first alkaline washing tower, the foul smell gets into the biotrickling filter case and handles, the waste gas after the processing gets into the second alkaline washing tower and handles, can effectually detach the acid waste gas that produces after the biological filter handles, waste gas is through above processing back, reach purifying effect, the waste gas after handling is sent to the aiutage through the fan and is up to standard and discharge, first alkaline washing tower, second alkaline washing tower can carry out the circulation operation through the circulating pump, guarantee the cyclic utilization of medicament and water, resources are saved, guarantee that equipment gas outlet is up to standard and discharges.
Drawings
FIG. 1 is a front view of a biochemical sewage and exhaust gas deodorization treatment apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a first alkaline washing tower of the biochemical sewage waste gas deodorization treatment device according to the present invention;
FIG. 3 is a schematic structural view of a second alkaline washing tower of the biochemical sewage and waste gas deodorization treatment device according to the present invention;
FIG. 4 is a schematic structural diagram of a bio-trickling filter of the apparatus for deodorizing waste gas from biochemical sewage according to the present invention;
in the figure: 1-a first alkaline washing tower, 2-a biological trickling filter box, 3-a second alkaline washing tower, 4-an exhaust device, 5-a first air outlet, 6-a first human hole sight glass, 7-a first demisting layer, 8-a first spray device, 9-a first packing layer, 10-a first air inlet, 11-a first circulating water tank, 12-a second air outlet, 13-a second human hole sight glass, 14-a second demisting layer, 15-a second spray device, 16-a second packing layer, 17-a second air inlet, 18-a second circulating water tank, 19-a third air inlet, 20-a prewashing device, 21-prewashing device packing, 22-a biological treatment device, 23-biological treatment device packing, 24-an air distribution pipeline and 25-a third air outlet, 26-an inspection manhole, 27-a support, 28-a support plate, 29-a third spraying device, 30-a fan and 31-an exhaust funnel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a biochemical sewage waste gas deodorization processing apparatus, includes first alkaline washing tower 1, biotrickling filter 2, second alkaline washing tower 3, exhaust apparatus 4, biotrickling filter 2 sets up on first alkaline washing tower 1 right side, 2 right sides of biotrickling filter are provided with second alkaline washing tower 3, exhaust apparatus 4 sets up on second alkaline washing tower 3 right sides.
Referring to fig. 2, the first alkaline washing tower 1 includes a first air outlet 5, a plurality of first personal sight glasses 6, a first defogging layer 7, a first spraying device 8, a first packing layer 9, a first air inlet 10, and a first circulating water tank 11, the first air outlet 5 is disposed at the upper end of the first alkaline washing tower 1, the plurality of first personal sight glasses 6 are disposed at the left side of the first alkaline washing tower 1, the first defogging layer 7 is disposed at the upper end of the outside of the first alkaline washing tower 1, the first packing layer 9 is disposed in the middle of the outside of the first alkaline washing tower 1, the first spraying device 8 is disposed on the first alkaline washing tower 1, the first air inlet 10 is disposed at the front end of the first alkaline washing tower 1, and the first circulating water tank 11 is disposed at the left side of the lower end of the first alkaline washing tower 1.
Referring to fig. 3, the second alkaline washing tower 3 includes a second air outlet 12, a plurality of second manhole sight glasses 13, a second defogging layer 14, a second spraying device 15, a second packing layer 16, a second air inlet 17, and a second circulation water tank 18, the second air outlet 12 is disposed at the upper end of the second alkaline washing tower 3, the plurality of second manhole sight glasses 13 is disposed at the left side of the second alkaline washing tower 3, the second defogging layer 14 is disposed at the upper end of the outside of the second alkaline washing tower 3, the second packing layer 16 is disposed in the middle of the outside of the second alkaline washing tower 3, the second spraying device 15 is disposed on the second alkaline washing tower 3, the second air inlet 17 is disposed at the front end of the second alkaline washing tower 3, and the second circulation water tank 18 is disposed at the left side of the lower end of the second alkaline washing tower 3.
Referring to fig. 4, the bio-trickling filter 2 includes a third air inlet 19, a prewashing device 20, a prewashing device filler 21, a biological treatment device 22, and a biological treatment device filler 23, the biological treatment device 22 includes an air distribution pipe 24, a third air outlet 25, an inspection manhole 26, a bracket 27, a support plate 28, and a third spraying device 29, the prewashing device 20 is disposed at the left side of the bio-trickling filter 2, the prewashing device filler 21 is disposed in the prewashing device 20, the third air inlet 19 is disposed at the upper end of the prewashing device 20, the biological treatment device 22 is disposed at the right side of the bio-trickling filter 2, the third spraying device 29 is disposed at the upper end of the biological treatment device 22, the inspection manhole 26 is disposed at the upper end of the biological treatment device 22, the biological treatment device filler 23 is disposed in the biological treatment device 22, the lower end of the biological treatment device 22 is disposed with the bracket 27, a support plate 28 is provided within the bracket 27.
The exhaust device 4 comprises a fan 30 and an exhaust funnel 31, and the exhaust funnel 31 is arranged at the upper end of the fan 30.
The working principle of the utility model is as follows: the collected waste gas firstly enters the first alkaline washing tower 1, and the absorption liquid is circularly absorbed in the tower through an alkaline washing circulating device, so that H2S and acidic odor can be effectively removed. After being absorbed by the first alkaline washing tower 1, odor enters the biological trickling filter box 2 for treatment, the treated waste gas enters the second alkaline washing tower 3 for treatment, the acidic waste gas generated after the treatment of the biological trickling filter box 2 can be effectively removed, the waste gas achieves a purification effect after the treatment, and the treated waste gas is sent to the exhaust funnel 31 through the fan 30 to reach the standard for emission. First alkaline washing tower 1, second alkaline washing tower 3 can carry out the circulation operation through the circulating pump, guarantee the cyclic utilization of medicament and water, and resources are saved guarantees that equipment gas outlet is up to standard discharges.
When the first alkaline washing tower 1 works, gas is sent from the first air inlet 10, liquid is sprayed onto the filler from the first spraying device 8 and flows down along the surface of the filler in the first filler layer 9, the gas and the liquid continuously pass through the gap of the first filler layer 9 in a countercurrent mode, gas-liquid two phases are in close contact with each other on the surface of the filler for mass transfer, and the gas subjected to absorption operation is sent out through the first air outlet 5. When liquid flows downwards along the first filler layer 9, the liquid tends to be gradually concentrated towards the tower wall, so that the liquid flow near the tower wall is gradually increased, and the liquid flowing down from the upper-layer filler is collected and then sent to the first circulating water tank 11, and then sent to the first spraying device 8 through the first circulating water tank 11 to be sprayed to the first filler layer 9. The first hole sight glass 6 can be used for monitoring the working condition in the tower in real time, and the work can be smoothly carried out.
When the biological trickling filter 2 works, gas is fed from the third air inlet 19 and enters the prewashing device 20, liquid is sprayed onto the prewashing device filler 21 from the third spraying device 29 and flows down along the surface of the prewashing device filler 21, and the gas and the liquid continuously pass through gaps of the prewashing device filler 21 in a downstream manner; on the surface of the packing, gas-liquid two phases are in close contact for mass transfer, the gas after absorption enters the biological treatment device 22 through the gas distribution pipeline 24, the liquid is sprayed onto the packing 23 of the biological treatment device by the third spraying device 29 and flows down along the surface of the packing, the gas and the liquid continuously pass through the gap of the packing 23 of the biological treatment device in a countercurrent manner, and the surface of the packing 23 of the biological treatment device is provided with a fixed biological film of deodorizer flora. The odor-containing gas passes through the filler space from bottom to top, the odor components are intercepted and decomposed, and the gas after the biological decomposition operation is sent out of the biological trickling filter box 2 through the third air outlet 25.
The principle of the second caustic scrubber 3 is identical to that of the first caustic scrubber 1.
For ease of description, the orientations referred to above are now specified as follows: the up, down, left, right, and front-back directions described above coincide with the up, down, left, right, and front-back directions of the projection relation of fig. 1 itself.
While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.