CN109603477B - Gaseous deodorizing device of sewage treatment system - Google Patents
Gaseous deodorizing device of sewage treatment system Download PDFInfo
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- CN109603477B CN109603477B CN201811622732.9A CN201811622732A CN109603477B CN 109603477 B CN109603477 B CN 109603477B CN 201811622732 A CN201811622732 A CN 201811622732A CN 109603477 B CN109603477 B CN 109603477B
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- 239000010865 sewage Substances 0.000 title claims abstract description 26
- 230000001877 deodorizing effect Effects 0.000 title claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 74
- 238000001179 sorption measurement Methods 0.000 claims abstract description 41
- 239000002274 desiccant Substances 0.000 claims abstract description 35
- 239000003513 alkali Substances 0.000 claims abstract description 29
- 239000002253 acid Substances 0.000 claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000002585 base Substances 0.000 claims abstract description 5
- 238000005554 pickling Methods 0.000 claims description 23
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 239000000292 calcium oxide Substances 0.000 claims description 4
- 235000012255 calcium oxide Nutrition 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 44
- 230000002378 acidificating effect Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 150000007524 organic acids Chemical class 0.000 description 4
- 235000005985 organic acids Nutrition 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002505 effect on nervous system Effects 0.000 description 1
- 210000000750 endocrine system Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 235000019260 propionic acid Nutrition 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 230000008786 sensory perception of smell Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- 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
- B01D53/40—Acidic components
-
- 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
- B01D53/42—Basic components
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/58—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/306—Organic sulfur compounds, e.g. mercaptans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a sewage treatment system gas deodorizing device which comprises a gas collecting tank, a base, an adsorption filter bottle, an acid washing bottle and an alkali washing bottle, wherein the adsorption filter bottle, the acid washing bottle and the alkali washing bottle are arranged on the base and are communicated through a gas inlet pipe, a first gas guide pipe and a second gas guide pipe in sequence, and the top of the alkali washing bottle is provided with a gas exhaust pipe; the adsorption filter bottle is internally filled with adsorption filler, the acid washing bottle is internally filled with acid washing liquid, the alkali washing bottle is internally filled with alkali washing liquid, upper cavities in the acid washing bottle and the alkali washing bottle are respectively sealed by a first drying agent and a second drying agent, the bottoms of the acid washing bottle and the alkali washing bottle are respectively spaced from the liquid surfaces of the acid washing liquid and the alkali washing liquid, and the inlet end of the second air duct and the inlet end of the exhaust pipe are respectively spaced from the top surfaces of the first drying agent and the second drying agent. The invention has small occupied space, less investment, low power consumption, simple operation and obvious removal effect.
Description
Technical Field
The invention belongs to the technical field of waste gas treatment, and particularly relates to a gas deodorizing device of a sewage treatment system.
Background
Malodorous substances are substances which stimulate the sense of smell to cause people to be unpleasant and damage living environment, and can generate malodorous substances, so that the malodorous substances have various effects on people, not only can multiply a large number of bacteria for transmitting diseases, but also can directly generate strong stimulation effect on nervous system, respiratory system, circulatory system and endocrine system through the olfactory system.
As cities are expanding, urban sewage treatment plants are relatively transferred from the original suburban areas to urban areas, malodorous gas of the sewage treatment plants seriously affects working environments of workers of the sewage treatment plants and living environments of surrounding residents, malodor is gradually a serious environmental problem along with the development of society and the improvement of environmental consciousness of people, and the sewage treatment plants are required to be gradually transferred from the standard reaching of the prior sewage treatment to the standard reaching of water, solid and gas so as to improve the living quality of people. For a sewage treatment plant, the anaerobic condition can cause complaints of malodorous gas generation which is harmful to human health. In sewage treatment systems, the main sources of odor pollution are treatment units such as anaerobic tanks and sludge tanks. In the sewage treatment process, when the dissolved oxygen in the sewage is very low or zero, the microorganisms take sulfate or nitrate as an electron acceptor, the sulfate is reduced into sulfite and sulfide, hydrogen sulfide gas is further generated, and solid particles in the sewage are subjected to anaerobic digestion to generate a large amount of ammonia along with a small amount of mercaptan and sulfur-containing gaseous compounds. Meanwhile, a series of low molecular weight organic substances such as volatile organic acids (VFAS) including butyric acid, acetic acid and propionic acid are generated during fermentation of sewage treatment. In summary, in sewage treatment system engineering, particularly in both anaerobic and sludge ponds, a large amount of H is generated 2 S、NH 3 And a small amount of CH 3 SH and volatile organic acids (VFAS).
Disclosure of Invention
The invention aims to solve the problems by providing a gas deodorizing device of a sewage treatment system, which can remove the odor components generated by the sewage treatment system, mainly a large amount of H 2 S、NH 3 And a small amount of CH 3 SH and volatile organic acids (VFAS).
The technical scheme adopted by the invention for solving the technical problems is as follows: the gas deodorizing device of the sewage treatment system is characterized by comprising a gas collecting tank, a base, an adsorption filter bottle, an acid washing bottle and an alkaline washing bottle, wherein the adsorption filter bottle, the acid washing bottle and the alkaline washing bottle are arranged on the base, the gas collecting tank is communicated with the adsorption filter bottle through a gas inlet pipe, the acid washing bottle is communicated with the adsorption filter bottle through a first gas guide pipe, the alkaline washing bottle is communicated with the adsorption filter bottle through a second gas guide pipe, and the top of the alkaline washing bottle is provided with a gas exhaust pipe; the adsorption filter bottle is filled with adsorption filler, and the outlet end of the air inlet pipe extends into the bottom of the adsorption filler; the pickling bottle is internally filled with pickling liquid, the inlet end of the first air duct is positioned in the top cavity of the adsorption filter bottle, and the outlet end of the first air duct is positioned at the bottom of the pickling bottle; the alkali washing bottle is internally filled with alkali washing liquid, the inlet end of the second air duct is positioned in the top cavity of the acid washing bottle, and the outlet end of the second air duct is positioned at the bottom of the alkali washing bottle; the inlet end of the exhaust pipe is positioned in the top cavity of the alkali washing bottle; the upper cavities in the acid washing bottle and the alkali washing bottle are respectively sealed by a first desiccant and a second desiccant, the bottoms of the first desiccant and the second desiccant are respectively spaced from the liquid level of the acid washing liquid and the liquid level of the alkali washing liquid, and the inlet end of the second air duct and the inlet end of the exhaust pipe are respectively spaced from the top surfaces of the first desiccant and the second desiccant.
According to the scheme, the air pump and the air inlet valve are sequentially arranged on the air inlet pipe along the air flow direction.
According to the scheme, the exhaust pipe is provided with an exhaust valve.
According to the scheme, the outlet end of the air inlet pipe, the outlet end of the first air guide pipe and the outlet end of the second air guide pipe are respectively provided with a first air diffuser, a second air diffuser and a third air diffuser.
According to the scheme, the inlet end of the first air guide pipe, the inlet end of the second air guide pipe and the inlet end of the exhaust pipe are respectively provided with the first gas collecting hood, the second gas collecting hood and the third gas collecting hood.
According to the scheme, the pickling solution is dilute hydrochloric acid, and the filling volume is 1/2 of the volume of the pickling bottle.
According to the scheme, the alkaline washing liquid is calcium hydroxide solution, and the filling volume is 1/2 of the volume of the alkaline washing bottle.
According to the scheme, the first drying agent and the second drying agent are both quicklime.
According to the scheme, the adsorption filler is activated carbon.
According to the scheme, the first air diffuser, the second air diffuser and the third air diffuser are all of cone structures, the bottoms of the first air diffuser, the second air diffuser and the third air diffuser are sealed, micropores are uniformly distributed on the periphery of the cone, and the aperture of each micropore is 2mm.
The beneficial effects of the invention are as follows: the utility model provides a sewage treatment system gas deodorizing device, the mode that has adopted "gas collecting device + adsorption filtration + pickling + alkaline wash" to the foul smell that sewage treatment system produced carries out the systematic treatment, can absorb the acidic odor-causing component and the alkaline odor-causing component in the foul smell that sewage treatment system produced simultaneously to make the foul smell realize the treatment effect of no foul smell, it is little to have occupation space, the investment is few, the power energy consumption is low, easy operation, the advantage that the removal effect is showing.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present invention.
Wherein: 1-gas collection tank, 2-gas inlet pipe, 3-air pump, 4-gas inlet valve, 5-adsorption filtration bottle, 6-adsorption filler, 7-first air diffuser, 8-first gas collection hood, 9-first gas guide pipe, 10-acid washing bottle, 11-second air diffuser, 12-acid washing liquid, 13-first desiccant, 14-second gas collection hood, 15-alkali washing bottle, 16-second gas guide pipe, 17-third air diffuser, 18-alkali washing liquid, 19-second desiccant, 20-third gas collection hood, 21-gas outlet valve, 22-gas outlet pipe and 23-base.
Detailed Description
For a better understanding of the present invention, reference is made to the following description of the invention taken in conjunction with the accompanying drawings and examples.
As shown in fig. 1, a gas deodorizing device of a sewage treatment system comprises a gas collecting tank 1, a base 23, an adsorption filter bottle 5, a pickling bottle 10 and an alkaline washing bottle 15, wherein the adsorption filter bottle 5, the pickling bottle 10 and the alkaline washing bottle 15 are arranged on the base, the gas collecting tank is communicated with the adsorption filter bottle through a gas inlet pipe 2, the pickling bottle is communicated with the adsorption filter bottle through a first gas guide pipe 9, the alkaline washing bottle is communicated with the adsorption filter bottle through a second gas guide pipe 16, and the top of the alkaline washing bottle is provided with a gas exhaust pipe 22; the adsorption filter bottle is filled with an adsorption filler 6, and the outlet end of the air inlet pipe extends into the bottom of the adsorption filler; the pickling solution 12 is filled in the pickling bottle, the inlet end of the first air duct is positioned in the top cavity of the adsorption filter bottle, and the outlet end of the first air duct is positioned at the bottom of the pickling bottle; the alkali washing bottle is internally filled with alkali washing liquid 18, the inlet end of the second air duct is positioned in the top cavity of the acid washing bottle, and the outlet end of the second air duct is positioned at the bottom of the alkali washing bottle; the inlet end of the exhaust pipe is positioned in the top cavity of the alkali washing bottle; the upper cavities in the acid washing bottle and the alkali washing bottle are respectively sealed by a first drying agent 13 and a second drying agent 19, the bottoms of the first drying agent and the second drying agent are respectively spaced from the liquid level of the acid washing liquid and the liquid level of the alkali washing liquid, and the inlet end of the second air duct and the inlet end of the exhaust pipe are respectively spaced from the top surfaces of the first drying agent and the second drying agent.
The air collection tank is connected with an engineering unit for generating odor of the sewage treatment system, collects the odor, and conveys the odor to the deodorizing device through an air inlet pipe and an air pump 3 and an air inlet valve 4 which are sequentially arranged on the air inlet pipe along the air flow direction.
The exhaust pipe is provided with an exhaust valve 21 for exhausting the purified gas.
The outlet end of the air inlet pipe, the outlet end of the first air guide pipe and the outlet end of the second air guide pipe are respectively provided with a first air diffuser 7, a second air diffuser 11 and a third air diffuser 17, the first air diffuser, the second air diffuser and the third air diffuser are of cone structures, the bottoms of the air inlet pipes are sealed, micropores are uniformly distributed on the periphery of the cone, the pore diameter of the micropores is 2mm, and the effect of ensuring that odor is fully removed in adsorption filter bottles, acid wash bottles and alkali wash bottles in an evenly distributed manner is achieved.
The inlet end of the first air duct, the inlet end of the second air duct and the inlet end of the exhaust pipe are respectively provided with a first gas collecting hood 8, a second gas collecting hood 14 and a third gas collecting hood 20, so that odor can smoothly and fully enter the next-stage treatment device.
The pickling solution is dilute hydrochloric acid, and the filling volume is 1/2 of the volume of the pickling bottle; the alkaline washing liquid is calcium hydroxide solution, and the filling volume is 1/2 of the volume of the alkaline washing bottle.
The first drying agent and the second drying agent are quicklime, the quicklime is low in cost and easy to obtain, the drying agent arranged in the pickling bottle mainly plays two roles, the first is HCl which absorbs odor and overflows along with the odor after passing through dilute hydrochloric acid, and the second is gas drying, and the second is to primarily absorb and remove part of acidic components in the odor; the drying agent arranged in the alkali washing bottle mainly plays roles of drying gas and further absorbing acidic components in odor, so that overflowed gas is cleaner.
The adsorption filler is activated carbon, so that part of odor components can be adsorbed and removed in the adsorption filter bottle, and the effect of balancing the odor can be achieved.
The odor enters the adsorption filter bottle through the air inlet pipe under the action of the air pump, then enters the acid washing bottle, finally enters the alkali washing bottle for treatment, and then enters the air inlet and outlet pipe for discharging the odor treatment system. In the adsorption filter flask, H 2 S、NH 3 、CH 3 SH, volatile organic acids (VFAS) and other odor-causing substances are partially adsorbed and removed, so that the odor is primarily reduced, and the odor and the gas quantity are balanced; in the pickling bottle, the odor is uniformly distributed in the dilute hydrochloric acid under the action of an air diffuser, and at the moment, the alkaline odor-causing component (comprising NH 3 Etc.) are fully absorbed and removed, HCl and H overflowed with the gas 2 O is absorbed by the drying agent, and meanwhile, the drying agent can absorb and remove part of acidic components in the odor; in the alkaline washing bottle, the odor is uniformly distributed in the calcium hydroxide solution under the action of the air diffuser, the odor-causing component of the odor treated by the acid washing bottle is mainly an acidic odor-causing component, the calcium hydroxide solution and the acidic odor-causing component are fully reacted and absorbed, and then the odor is discharged after reaching standards through an air outlet pipe after being absorbed and dried by a drying agent in the alkaline washing bottle.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the present invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (6)
1. The gas deodorizing device of the sewage treatment system is characterized by comprising a gas collecting tank, a base, an adsorption filter bottle, an acid washing bottle and an alkaline washing bottle, wherein the adsorption filter bottle, the acid washing bottle and the alkaline washing bottle are arranged on the base, the gas collecting tank is communicated with the adsorption filter bottle through a gas inlet pipe, the acid washing bottle is communicated with the adsorption filter bottle through a first gas guide pipe, the alkaline washing bottle is communicated with the adsorption filter bottle through a second gas guide pipe, and the top of the alkaline washing bottle is provided with a gas exhaust pipe; the adsorption filter bottle is filled with adsorption filler, and the outlet end of the air inlet pipe extends into the bottom of the adsorption filler; the pickling bottle is internally filled with pickling liquid, the inlet end of the first air duct is positioned in the top cavity of the adsorption filter bottle, and the outlet end of the first air duct is positioned at the bottom of the pickling bottle; the alkali washing bottle is internally filled with alkali washing liquid, the inlet end of the second air duct is positioned in the top cavity of the acid washing bottle, and the outlet end of the second air duct is positioned at the bottom of the alkali washing bottle; the inlet end of the exhaust pipe is positioned in the top cavity of the alkali washing bottle; the upper cavities in the pickling bottle and the alkaline washing bottle are respectively sealed by a first drying agent and a second drying agent, the bottoms of the first drying agent and the second drying agent are respectively spaced from the liquid level of pickling solution and alkaline washing solution, and the inlet end of the second air duct and the inlet end of the exhaust pipe are respectively spaced from the top surfaces of the first drying agent and the second drying agent; the pickling solution is dilute hydrochloric acid, and the filling volume is 1/2 of the volume of the pickling bottle; the alkaline washing liquid is calcium hydroxide solution, and the filling volume is 1/2 of the volume of the alkaline washing bottle; the first drying agent and the second drying agent are quicklime; the adsorption filler is activated carbon.
2. The apparatus of claim 1, wherein the air inlet pipe is provided with an air pump and an air inlet valve in order along the air flow direction.
3. A sewage treatment system gas deodorizing device as set forth in claim 1, wherein said exhaust pipe is provided with an exhaust valve.
4. The apparatus of claim 1, wherein the outlet end of the air inlet pipe, the outlet end of the first air duct and the outlet end of the second air duct are respectively provided with a first air diffuser, a second air diffuser and a third air diffuser.
5. The apparatus of claim 4, wherein the inlet end of the first air duct, the inlet end of the second air duct, and the inlet end of the exhaust duct are provided with a first air-collecting hood, a second air-collecting hood, and a third air-collecting hood, respectively.
6. The apparatus of claim 4, wherein the first air diffuser, the second air diffuser and the third air diffuser are all cone structures, the bottoms are sealed, micropores are uniformly distributed on the peripheral surfaces of the cones, and the pore diameters of the micropores are 2mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811622732.9A CN109603477B (en) | 2018-12-28 | 2018-12-28 | Gaseous deodorizing device of sewage treatment system |
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| CN201811622732.9A CN109603477B (en) | 2018-12-28 | 2018-12-28 | Gaseous deodorizing device of sewage treatment system |
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| CN109603477A CN109603477A (en) | 2019-04-12 |
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| CN112717666B (en) * | 2020-12-09 | 2022-02-08 | 南京大学 | Granular quicklime fixed bed dehydration and deodorization system and operation method thereof |
| CN115532002A (en) * | 2022-09-06 | 2022-12-30 | 湖南仁和环境股份有限公司 | Kitchen odor grading and enriching method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2889463Y (en) * | 2006-04-05 | 2007-04-18 | 华中科技大学 | Solid and liquid two-phase purifier for odor gas |
| CN200951379Y (en) * | 2006-09-05 | 2007-09-26 | 靳登超 | Tail gas purification equipment for medical refuse treatment system |
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