CN203370458U - Waste gas washing tower - Google Patents

Waste gas washing tower Download PDF

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Publication number
CN203370458U
CN203370458U CN201320353367.2U CN201320353367U CN203370458U CN 203370458 U CN203370458 U CN 203370458U CN 201320353367 U CN201320353367 U CN 201320353367U CN 203370458 U CN203370458 U CN 203370458U
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China
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waste gas
washing tower
spray equipment
exhaust gas
gas washing
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CN201320353367.2U
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Chinese (zh)
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王亦勤
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Shen Qin Water Treatment Technology (shanghai) Co Ltd
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Shen Qin Water Treatment Technology (shanghai) Co Ltd
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    • 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

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Abstract

The utility model provides a waste gas washing tower. The waste gas washing tower comprises a waste gas input opening, a storage groove and a gas outlet, wherein a first-grade packing layer, a first-grade spraying device, a gas redistribution device, a second-grade packing layer, a second-grade spraying device and a demister at the top are arranged inside the waste gas washing tower in sequence from bottom to top; the first-grade spraying device and the second-grade spraying device are provided with active sludge input openings; active sludge is sprayed out from the first-grade spraying device and the second-grade spraying device at the same time to be contacted with waste gas of the waste gas input opening and be washed; the washed gas is discharged out from the gas outlet after passing through the demister; the washed active sludge enters the storage groove; finally, a reflowing aerobic tank is used for oxidizing and degrading adsorbed organic pollutants. According to the waste gas washing tower provided by the utility model, the aerobic active sludge with the activity is adopted so that the adsorption capability to the organic pollution is strong. Organic compounds which generate odors are subjected to active sludge adsorption and biological degradation so that the operation cost is very low when being compared with expensive chemical adsorption and reactions.

Description

Exhaust gas washing tower
Technical field
The utility model relates to exhaust gas washing tower, particularly uses the exhaust gas washing tower of activated sludge.
Background technology
Along with the development of environmental protection cause, people are more and more higher to the requirement of environment, and not only water quality will purify, and the waste gas accompanied also needs to obtain appropriate processing.Especially the rise of processing along with solid wastes such as changing food wastes, solid waste is processed because the stink generation is large-minded, and processing area is large, and the stink substance complexity be take anaerobic technique as main, aerobic aeration pond small scale, the difficulty that foul smell is processed is larger.
The stink substance contained in waste gas is mainly the material of reproducibility, and for example the nitrogen in ammonia nitrogen is-3 valencys, H 2s in S is-divalent that volatile acid, will consume rapidly the dissolved oxygen in blood in these reducing substanceses absorption blood in addition, thereby human body is caused and stimulates even life harm of sense organ.The method of removing these stink substances is a lot, wherein most economical when the number biological oxidations, traditional biofilter time has been grown the microorganism clogging of easily being grown by self, and utilize the aerobic aeration pond of sewage treatment plant directly waste gas to be passed into, if too shallow absorption is insufficient, if power consumption is too large too deeply again, and air blast is produced to corrosion, most critical be that the aerobic aeration pond does not need so large tolerance.
The CN201010251528.8 China utility model of application number discloses a kind of multifunctional bacterial filter waste gas treatment device, comprise a plurality of biofilters deodorizing tower, each described deodorizing tower is connected to respectively exhaust steam passage, the below of a plurality of described deodorizing towers is provided with the circulating fluid case that circulation fluid is equipped with in inside, and a plurality of described deodorizing towers have tandem working state and parallel operation state.
Biological deodorizing is a kind of very economical effective deodorizing mode, and traditional design is a bio-trickling filter, and gas passes through, and in filter tank, the microorganism of enrichment is by micro-stink substance oxidation Decomposition.Permanent operation is put into practice and is shown, owing to there is no good discharge and substance transfer system, bio-trickling filter easily stops up and causes ultimate failure.
The method of another kind of biological deodorizing is that waste gas is directly squeezed into to the own aerobic aeration pond of sewage treatment plant, is also to utilize the microorganism in aeration tank to carry out oxidation Decomposition.If too shallow absorption is insufficient, if power consumption is too large too deeply again, and air blast is produced to corrosion, most critical be that the aerobic aeration pond does not need so large tolerance.
Summary of the invention
For overcoming the deficiencies in the prior art, the utility model provides a kind of economy, stable, energy-efficient exhaust gas washing tower.
For achieving the above object, the exhaust gas washing tower that the utility model provides, comprise the waste gas input port, holding tank and gas outlet, described exhaust gas washing tower inside is disposed with the one-level packing layer from bottom to top, the one-level spray equipment, distribution device again, secondary packing layer and secondary spray equipment, described one-level spray equipment and described secondary spray equipment all are provided with the activated sludge input port, activated sludge is from described one-level spray equipment and the ejection of described secondary spray equipment, contact washing with the waste gas from the input of described waste gas input port, gas after washing is discharged from gas outlet, activated sludge after washing enters holding tank.Like this, containing the waste gas that produces the peculiar smell organic pollution, from the waste gas input port of biological wash tower bottoms, enter, through one-level packing layer and one-level spray equipment, stand the one-level spray, then upwards flow through distribution device again, then pass through secondary packing layer and secondary spray equipment, stand the secondary spray, overwhelming majority organic pollution all is washed in water body, be adsorbed on activated sludge, now, scrubbing tower closes up, gas from bottom to top enters the gas outlet on top, carries out high altitude discharge.
Preferably, described distribution device again is the watertight Ventilated floor.Like this, after waste gas stands the one-level spray, through the watertight Ventilated floor, make waste gas continue upwards to flow, stand the secondary spray.
Advantageously, described exhaust gas washing tower comprises demister.Like this, utilize a small amount of clear water spray demist, avoid the organic pollution remained with peculiar smell to fly away and again enter atmosphere with mist.
Preferably, described packing layer adopts anticlogging cast polypropylene material.Like this, can increase the contact-making surface of liquid and gas, make washing more abundant.
Advantageously, described holding tank is provided with delivery outlet, and described delivery outlet is connected with the aerobic aeration pond.Like this, not degradable organic pollution, can spray the activated sludge got off with this and flow back to aeration tank and proceed biodegradation, finally becomes innoxious CO 2and H 2o.
Preferably, described spray equipment is shower nozzle.Like this, can prevent from stopping up, again uniform spraying effectively.
Compared with prior art, the exhaust gas washing tower that the utility model provides adopts great-hearted aerobic activated sludge, to the organic contamination high adsorption capacity.Organic compound for producing stink, utilize activated sludge absorption and biodegradation, compares expensive chemisorbed and reaction, operating cost and cheap.
The accompanying drawing explanation
With reference to accompanying drawing, the description of feature of the present utility model, advantage and the characteristic specific embodiment by hereinafter is able to better understanding, in accompanying drawing:
Fig. 1 is the structural representation of exhaust gas washing tower of the present utility model;
In the accompanying drawings, same or similar element use same numbers mark, different elements is used different figure notations, wherein:
1, waste gas input port; 2, one-level packing layer; 3, one-level spray equipment; 4, distribution device again; 5, secondary packing layer; 6, secondary spray equipment; 7, gas outlet; 8, demister; 9, activated sludge input port; 10, holding tank; 11, delivery outlet.
The specific embodiment
As shown in Figure 1, the exhaust gas washing tower that the utility model that the utility model provides provides, comprise waste gas input port 1, holding tank 10 and gas outlet 7, described exhaust gas washing tower inside is disposed with one-level packing layer 2 from bottom to top, one-level spray equipment 3, distribution device 4 again, secondary packing layer 5 and secondary spray equipment 6, described one-level spray equipment 3 and described secondary spray equipment 6 all are provided with activated sludge input port 9, activated sludge is from described one- level spray equipment 3 and 6 ejections of described secondary spray equipment, contact washing with the waste gas of 1 input from the waste gas input port, gas after washing is 7 discharges from gas outlet, activated sludge after washing enters holding tank 10.Like this, containing the waste gas that produces the peculiar smell organic pollution, from the waste gas input port 1 of biological wash tower bottoms, enter, through one-level packing layer 2 and one-level spray equipment 3, stand the one-level spray, then through distribution device 4 is upwards mobile again, pass through again secondary packing layer 5 and secondary spray equipment 6, stand the secondary spray, overwhelming majority organic pollution all is washed in water body, is adsorbed on activated sludge, now, scrubbing tower closes up, gas from bottom to top enters the gas outlet 7 on top, carries out high altitude discharge, and the activated sludge after washing enters holding tank 10.
Activated sludge (active sludge) is the organic substance that depends on of micropopulation and they and the general name of inorganic substances.Micropopulation mainly comprises bacterium, protozoan and algae etc.Microorganism and the organic pollution in waste gas (especially acid organic matter) complicated in activated sludge have formed complicated food chain.What take at first the purification task is heterotrophic bacteria and saprophytic property fungi, and bacterium particularly spherical bacteria plays a part most critical, and the activated sludge of good running is to take the zoogloea that der Pilz is comprised of spherical bacterium as skeleton.Settleability is good, and along with the normal operation of activated sludge, the bacterium amount reproduction, start the protozoan that grows, and is predator of bacterium.Protozoan amphitrichous worm, meat caterpillar, infusorian and worms on a sucker that activated sludge is common.When activated sludge is ripe, the infusorian of sessile form, kind worm are preponderated; Metazoa is the secondary predator of bacterium, as wheel animalcule, nematode etc. can only just occur when dissolved oxygen is sufficient.Its performance indications comprise: mixed liquor suspended solid, MLSS (MLSS), sludge settling ratio (SV), sludge volume index (SVI), sludge density index (SDI) (SDI).
Preferably, described distribution device again 4 is watertight Ventilated floors, like this, containing the waste gas that produces the peculiar smell organic pollution, from the waste gas input port 1 of biological wash tower bottoms, enter, through one-level packing layer 2 and one-level spray equipment 3, stand the one-level spray, then the distribution device again 4 formed through the watertight Ventilated floor upwards flows, pass through again secondary packing layer 5 and secondary spray equipment 6, stand the secondary spray, overwhelming majority organic pollution all is washed in water body, be adsorbed on activated sludge, now, scrubbing tower closes up, gas from bottom to top enters the gas outlet 7 on top, carry out high altitude discharge, activated sludge after washing enters holding tank 10.
Advantageously, the organic pollution for fear of residue with peculiar smell flies away and again enters atmosphere with mist, in the exit of exhaust gas washing tower, is provided with demister 8.Demister 8 is mainly to consist of plate, supporting arrangement.Plate is made by macromolecular material (as polypropylene PP, FRP etc.) or the large class material of stainless steel (as 316L, 317L etc.) 2 usually.Generally be divided into streamlined and broken line type.When the gas that contains mist is flowed through demister with certain speed, inertial impaction effect due to gas, mist and corrugated sheet collide and the drop that gathered arrive greatly climbing power that the gravity himself produced surpasses gas and surface tension of liquid with joint efforts the time, drop is just separated from the corrugated sheet surface to get off.The structure that is folded to of demister corrugated sheet has increased the chance that mist is captured more, the mist be not removed at next turning through identical effect and be captured, repeated action like this, thus greatly improved demist efficiency.
Preferably, in the process contacted with gas at liquid, in order to increase contact area, the packing layer of described exhaust gas washing tower adopts anticlogging cast polypropylene material.Be conducive to the extraordinary microorganism of denitrogenation-type and rely on bio-film colonization (Bio-film) to extend the bacterial classification time of staying, obtain containing NH 4the malodorous compounds of-N is carried out nitrated decomposition.
Preferably, for preventing stopping up, uniform spraying effectively again, spray equipment adopts professional shower nozzle, takes full advantage of washing away of spray waterpower, prevents that fouling from stopping up, good by type.
Advantageously, described holding tank 10 is provided with delivery outlet 11, and described delivery outlet 11 is connected with the aerobic aeration pond.Like this, containing the waste gas that produces the peculiar smell organic pollution, from the waste gas input port 1 of biological wash tower bottoms, enter, through one-level packing layer 2 and one-level spray equipment 3, stand the one-level spray, then the distribution device again 4 formed through the watertight Ventilated floor upwards flows, pass through again secondary packing layer 5 and secondary spray equipment 6, stand the secondary spray, overwhelming majority organic pollution all is washed in water body, be adsorbed on activated sludge, now, scrubbing tower closes up, gas from bottom to top enters demister 8, after utilizing a small amount of clear water spray demist, gas is by gas outlet 7, carry out high altitude discharge, activated sludge after washing enters holding tank 10, not degradable organic pollution, can spray the activated sludge got off with this flows back to aeration tank by delivery outlet 11 and proceeds biodegradation, finally become innoxious CO 2and H 2o.
According to preferred embodiment of the present utility model, operation principle of the present utility model is described as follows:
Enter the waste gas tower containing the waste gas that produces the peculiar smell organic pollution from the waste gas input port 1 of biological wash tower bottoms, through one-level packing layer 2 and one-level shower nozzle 3, stand the one-level spray, then the distribution device again 4 formed through the watertight Ventilated floor upwards flows, pass through again secondary packing layer 5 and secondary shower nozzle 6, stand the secondary spray, overwhelming majority organic pollution all is washed in water body, be adsorbed on activated sludge, now, scrubbing tower closes up, gas from bottom to top enters demister 8, after utilizing a small amount of clear water spray demist, gas is by gas outlet 7, carry out high altitude discharge, activated sludge after washing enters holding tank 10, not degradable organic pollution, can spray the activated sludge got off with this flows back to aeration tank by delivery outlet 11 and proceeds biodegradation, finally become innoxious CO 2and H 2o.
Advantage of the present utility model is as follows:
One, take up an area and economize: 10000m 3/ h foul smell amount only needs the scrubbing tower of diameter 2.2m diameter.
Two, operating cost is low: the organic compound for producing stink, utilize activated sludge absorption and biodegradation, and compare expensive chemisorbed and reaction, operating cost and cheap.
Three, broad-spectrum high efficacy: to producing three large organic compounds of stink, rely on respectively:
1,, for the acids stink substance, adopt the activated sludge absorption degraded;
2,, for the Ammonia stink substance, adopt the extraordinary nitrifier of special-purpose Bio-Net100 biologic packing material biofilm growth to degrade specially;
3,, for sulphur class stink substance, rely on the biological treatment water outlet of high alkalinity to carry out good absorption.
The complicated stink substance of all difficult degradations can also return to large aerobic aeration pond with activated sludge after spray and carry out effective aerobic biodegradation.
Four, reliable and stable: traditional biofilter is a biological fixed bed, and mass transfer effect is poor, biological regulation and control difficulty, and metabolic material is very difficult from the transfer of bacteria bed, must shut down maintenance.And the biological scrubbing tower of dependence aerobic activated sludge, mass transfer effect is good, and mass transport and renewal rapidly, as long as large aerobic aeration pond normal operation has and enriches sufficient healthy activated sludge generation, just can guarantee the stable operation of biological scrubbing tower fully.And the regulation and control of aerobic aeration pond are convenient, its normal operation is the daily basic guarantee up to standard of whole sewage treatment plant simultaneously.
Five, guarantee up to standard: in biology washing and degraded, the structure of high tower and special transportation section, top can form the high altitude discharge of finally giving vent to anger, and by diffusion dilution usefulness, guarantee factory's circle air quality (more than secondary) up to standard.
More than describe preferred specific embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design concept of the present utility model without creative work.Therefore; all technical staff in the art comply with design concept of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within scope of the present utility model and/or by the determined protection domain of claims.

Claims (6)

1. exhaust gas washing tower, comprise waste gas input port (1), holding tank (10) and gas outlet (7), it is characterized in that: described exhaust gas washing tower inside is disposed with one-level packing layer (2) from bottom to top, one-level spray equipment (3), distribution device (4) again, secondary packing layer (5) and secondary spray equipment (6), described one-level spray equipment (3) and described secondary spray equipment (6) all are provided with activated sludge input port (9), activated sludge is from described one-level spray equipment (3) and described secondary spray equipment (6) ejection, contact washing with the waste gas from described waste gas input port (1) input, gas after washing is (7) discharge from gas outlet, activated sludge after washing enters holding tank (10).
2. exhaust gas washing tower according to claim 1, it is characterized in that: described distribution device again (4) is the watertight Ventilated floor.
3. exhaust gas washing tower according to claim 2, it is characterized in that: described exhaust gas washing tower comprises demister (8).
4. exhaust gas washing tower according to claim 3, it is characterized in that: described packing layer adopts anticlogging cast polypropylene material.
5. exhaust gas washing tower according to claim 1, it is characterized in that: described holding tank (10) is provided with delivery outlet (11), and described delivery outlet (11) is connected with the aerobic aeration pond.
6. exhaust gas washing tower according to claim 1, it is characterized in that: described spray equipment (3) is shower nozzle.
CN201320353367.2U 2013-06-19 2013-06-19 Waste gas washing tower Ceased CN203370458U (en)

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CN201320353367.2U CN203370458U (en) 2013-06-19 2013-06-19 Waste gas washing tower

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104248909A (en) * 2013-06-28 2014-12-31 帕克环保技术(上海)有限公司 Odor removal and washing tower for aerobic biological activated sludge
CN104310577A (en) * 2014-10-28 2015-01-28 青岛金海晟环保设备有限公司 Treatment device and method for stench in sewage treatment aeration tank
CN108786435A (en) * 2018-06-29 2018-11-13 广西博世科环保科技股份有限公司 A kind of biochemical coupling deodorization process and its device with anti-blocking dredging function
CN112263909A (en) * 2020-10-16 2021-01-26 山东索源环境科技有限公司 Biological filtration washing tower
CN114699890A (en) * 2022-03-09 2022-07-05 中煤能源研究院有限责任公司 System and method for adsorbing and solidifying carbon dioxide by industrial sludge
CN116460126A (en) * 2023-05-12 2023-07-21 江苏暨之阳环保科技有限公司 Method for restoring polycyclic aromatic hydrocarbon polluted soil by utilizing activated sludge

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104248909A (en) * 2013-06-28 2014-12-31 帕克环保技术(上海)有限公司 Odor removal and washing tower for aerobic biological activated sludge
CN104310577A (en) * 2014-10-28 2015-01-28 青岛金海晟环保设备有限公司 Treatment device and method for stench in sewage treatment aeration tank
CN108786435A (en) * 2018-06-29 2018-11-13 广西博世科环保科技股份有限公司 A kind of biochemical coupling deodorization process and its device with anti-blocking dredging function
CN112263909A (en) * 2020-10-16 2021-01-26 山东索源环境科技有限公司 Biological filtration washing tower
CN114699890A (en) * 2022-03-09 2022-07-05 中煤能源研究院有限责任公司 System and method for adsorbing and solidifying carbon dioxide by industrial sludge
CN114699890B (en) * 2022-03-09 2024-01-23 中煤能源研究院有限责任公司 System and method for adsorbing and solidifying carbon dioxide by industrial sludge
CN116460126A (en) * 2023-05-12 2023-07-21 江苏暨之阳环保科技有限公司 Method for restoring polycyclic aromatic hydrocarbon polluted soil by utilizing activated sludge
CN116460126B (en) * 2023-05-12 2023-10-13 江苏暨之阳环保科技有限公司 Method for restoring polycyclic aromatic hydrocarbon polluted soil by utilizing activated sludge

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Decision date of declaring invalidation: 20150715

Decision number of declaring invalidation: 26498

Granted publication date: 20140101