CN105709577A - Refuse leachate malodorous gas purification complete device and refuse leachate malodorous gas purification method - Google Patents
Refuse leachate malodorous gas purification complete device and refuse leachate malodorous gas purification method Download PDFInfo
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- CN105709577A CN105709577A CN201610284386.2A CN201610284386A CN105709577A CN 105709577 A CN105709577 A CN 105709577A CN 201610284386 A CN201610284386 A CN 201610284386A CN 105709577 A CN105709577 A CN 105709577A
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000000746 purification Methods 0.000 title abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 89
- 238000006243 chemical reaction Methods 0.000 claims abstract description 79
- 239000002912 waste gas Substances 0.000 claims abstract description 79
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 34
- 230000003647 oxidation Effects 0.000 claims abstract description 20
- 230000001590 oxidative effect Effects 0.000 claims abstract description 13
- 238000005336 cracking Methods 0.000 claims abstract description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 33
- 229910052760 oxygen Inorganic materials 0.000 claims description 33
- 239000001301 oxygen Substances 0.000 claims description 33
- 230000001939 inductive effect Effects 0.000 claims description 31
- 239000007788 liquid Substances 0.000 claims description 30
- 239000010813 municipal solid waste Substances 0.000 claims description 17
- 239000007921 spray Substances 0.000 claims description 17
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 238000000197 pyrolysis Methods 0.000 claims description 14
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 9
- 150000005837 radical ions Chemical class 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 8
- 238000011026 diafiltration Methods 0.000 claims description 5
- 238000003672 processing method Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000036461 convulsion Effects 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 13
- 229910001868 water Inorganic materials 0.000 description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000001569 carbon dioxide Substances 0.000 description 4
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 235000019615 sensations Nutrition 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- -1 Nitrogen-containing compound Chemical class 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006303 photolysis reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 150000003568 thioethers Chemical class 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
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/007—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 irradiation
-
- 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
- B01D53/24—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 centrifugal force
-
- 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
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
-
- 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
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Treating Waste Gases (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a refuse leachate malodorous gas purification complete device. The refuse leachate malodorous gas purification complete device comprises a waste gas lead-in device, a waste gas processing device and a waste gas guide-out device, one end of the waste gas processing device is communicated with the waste gas lead-in device, and the other end of the waste gas processing device is communicated with the waste gas guide-out device; the waste gas lead-in device is communicated with a refuse leachate pond; the waste gas processing device comprises a pre-reaction chamber and a main reaction chamber, which are adjacently communicated, spraying oxidizing equipment and centrifuging demisting equipment are sequentially arranged in the pre-reaction chamber, and UV (ultraviolet) cracking oxidation equipment is arranged in the main reaction chamber. The invention also provides a refuse leachate malodorous gas purification method. The refuse leachate malodorous gas purification complete device has small occupied space, can continuously treat large volume of malodorous gas, has low investment and operating costs, has high purification efficiency of malodorous gas and does not cause secondary pollution.
Description
Technical field
The present invention relates to landfill leachate treatment field, be specifically related to a kind of percolate foul gas and be cleaned into covering device and method.
Background technology
In refuse-burning plant, refuse landfill, day-to-day operation process produces a large amount of percolate, percolate is pooled to diafiltration liquid pool after collecting, let slip in journey at pond internal memory and ferment, a large amount of foul gas will be produced in the process, atmospheric environment is caused serious destruction, to internal staff and neighbouring resident is healthy causes serious threat, affects people's living standard.Foul waste gas be mainly composed of sulfur-containing compound: hydrogen sulfide, mercaptan, thioether.Nitrogen-containing compound: ammonia, amine etc..Existing it is broadly divided into for percolate foul gas treatment technology:
1, plant essence spray process (Maskingmethods)
Encapsulation method refers to and is dissolved in spray column tank with some compound essence or natural essence, and percolate foul waste gas mixes with the plant essence of dilution through collecting to pass in spray column, hides the foul smell of rubbish with the fragrance of these essence.Owing to odorousness has additivity, when foul smell taste is big, taste is too dense, too muddy to use the method that people can be made to feel.And the method is that one is covered, can not thoroughly solving the harm of percolate foul waste gas, the harm of environment and people is still existed by waste gas.
2, diluent air method (Dilutionintheatmosphere)
Diluent air method is generally classified as the row of Physical.Its method of work is as follows: by using air exhauster to be extracted out by air in pond, and high altitude discharge, to reach to remove in pond the effect of foul smell.Due to the method simply diluent air simply, foul smell molecule can be diffused into surrounding, surrounding can be had pollution, if near have resident, will there is the problem that seriously disturbs residents.
3, active carbon adsorption (Absorbentmethods)
The shortcoming of the method is still fairly obvious.Activated carbon adsorption is inefficient, is typically in about 60%-70%, and after absorption, foul gas yet suffers from foul smell, and need often to change absorption saturated after activated carbon.Additionally, adsorb saturated after activated carbon belong to hazardous waste, there is secondary pollution problem.
4, effective microbe method (EffectiveMicroorganismsEM)
The method is that microorganism is sprayed directly on solid waste surface, is decomposed the odorant on solid waste surface by bacteria metabolism, thus blocking distributing of foul gas.The method is applicable to the long-time heap garbages such as refuse landfill, but does not act on for the foul waste gas in garbage filter liquid pool.
5, spray oxidative absorption method
The method adopts high-efficient oxidant, is dissolved in by strong oxidizer in spray column tank, is made with filler by spray column shower nozzle that foul waste gas is sufficiently effective with oxidative absorption liquid to be contacted, thus being absorbed in liquid by absorption oxidation Decomposition being dissolved in.But the method nitrogen purifies not thorough, can reach about 70% for the general purifying rate of percolate foul waste gas, and after purification, still stink is obvious, can as the foul waste gas pretreatment of high concentration.
6, UV photodissociation (UVRadiation)
The party's ratio juris is: adopts high energy ultraviolet that emission molecule cracking in foul gas is formed free radical, and produces ozone cooperative reaction simultaneously, is finally oxidized to the micromolecular compound of tasteless low evil, such as carbon dioxide, water etc..The method deodorization purification efficiency is high, but uses the plant running cost height of the method at present.
Therefore, the processing method of the foul gas of percolate and process equipment exists by prior art investment is high, operating cost is high, it is narrow-minded to process, job insecurity, take up room big, deodorization purification efficiency is not high, there is potential safety hazard and there is secondary pollution problems.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of percolate foul gas and be cleaned into covering device, this plant area space is little, it is big that continuous operation processes the effluvium scale of construction, and invest low, operating cost is little, foul gas purification efficiency is high, is absent from secondary pollution.
Realize the purpose of the present invention can pass through to adopt the following technical scheme that and reach:
A kind of percolate foul gas is cleaned into covering device, including waste gas gatherer, emission-control equipment and waste gas let-off gear(stand)；One end connection waste gas gatherer of described emission-control equipment, the other end connection waste gas let-off gear(stand) of emission-control equipment；Described waste gas gatherer connects with garbage filter liquid pool, for collecting the pending foul gas of garbage filter liquid pool release；Described emission-control equipment includes pre-reaction room and main reaction chamber, the connection adjacent with main reaction chamber of pre-reaction room；Described pre-reaction room is sequentially provided with spray oxidation furnaces and centrifugal defogging equipment, described main reaction chamber is provided with UV pyrolysis oxidization equipment；After foul gas in garbage filter liquid pool is imported by described waste gas gatherer, pass sequentially through pre-reaction room in emission-control equipment, main reaction chamber processes, and is derived by waste gas (foul gas after emission-control equipment processes) again through waste gas let-off gear(stand) after having processed.
Preferably, described waste gas gatherer is provided with for guiding the foul gas in diafiltration liquid pool to flow to the first air-inducing passage of emission-control equipment；Described first air-inducing passage connects with emission-control equipment.
Preferably, described first air-inducing passage is provided with the oxygen compensating port for increasing oxygen content in the first air-inducing passage, and described oxygen compensating port is provided with the adjustment valve for regulating oxygen flow.
Preferably, the UV pyrolysis oxidization equipment in described main reaction chamber includes least one set UV transmitting tube and least one set power module, and described UV transmitting tube is electrically connected with power module.
Preferably, described one group of UV transmitting tube includes fixed mount and Duo Gen UV transmitting tube；Described fixed mount is rectangular box；Many described UV transmitting tube settings arranged in parallel successively, UV transmitting tube one end is arranged on the side of fixed mount, and the other end is arranged on the opposite side of fixed mount.
Preferably, the described two ends of UV transmitting tube and the junction of fixed mount are provided with for avoiding foul gas to overflow the O-ring seal of corrosion UV transmitting tube.
Preferably, described waste gas let-off gear(stand) includes air exhauster, the second air inducing pipeline, discharge duct；One end of described second air inducing pipeline connects with emission-control equipment, and the other end of the second air inducing pipeline connects with discharge duct, and described air exhauster is arranged on the connectivity part of the second air inducing pipeline and discharge duct；Described air exhauster passes through the first air inducing pipeline by the waste gas suction discharge duct in emission-control equipment, then discharges the external world from the outlet of discharge duct.
Preferably, also including for controlling the control room that equipment runs in described emission-control equipment, described control room is arranged on the main reaction chamber side away from pre-reaction room；Described control room is provided with automatic controlling device, and described automatic controlling device includes electric cabinet, master controller and memorizer, and described master controller and memorizer are arranged in electric cabinet.
Preferably, the control room of described emission-control equipment is additionally provided with manual control equipment, and described manual control equipment is provided with the button for triggering opening of device, closedown and jerk.
The present invention also provides for the processing method that a kind of percolate foul gas is cleaned into the foul gas of covering device, comprises the steps:
1) opening the air exhauster in waste gas let-off gear(stand), under the effect of air exhauster, the oxygen of the foul gas in garbage filter liquid pool and oxygen compensating port quickly enters in waste gas gatherer and mixes, and enters in emission-control equipment again through the first air-inducing passage；
2) foul gas passes through pre-reaction room, and first, oxidative absorption liquid is uniformly sprayed by spray oxidation furnaces, and foul gas is absorbed oxidation, and then foul gas enters centrifugal defogging equipment steam by stages, and centrifugal rotational speed is 2900-5000r/min；
3) foul gas behind pre-reaction room enters main reaction chamber, UV transmitting tube in main reaction chamber sends ultraviolet rays and foul gas is carried out cracking reaction, the wavelength of ultraviolet rays is 160nm-185nm, and foul gas is cracked into atom and the radical ion of ionic condition；
4) after the oxygen entered from oxygen compensating port flows into main reaction chamber, under the irradiation of UV transmitting tube, oxygen is cracked into ozone, ozone and 3) in the atom of ionic condition that obtains and radical ion generation Strong oxdiative react, the foul gas cracked through UV transmitting tube is reassembled into the compound of harmless or low evil；
5) under the effect of air exhauster, 4) compound in the compound obtained discharges the external world from waste gas let-off gear(stand).
Compared to existing technology, the beneficial effects of the present invention is:
1, present invention employs two kinds of processing mode synergistic purifications of UV pyrolysis oxidization of the chemical absorbing oxidation of spray oxidation furnaces and UV pyrolysis oxidization equipment, can avoid the single chemical absorbing cannot to methyl sulfide, the foul gass such as methanthiol carry out efficient absorption, single UV pyrolysis oxidization processes the foul gass such as the hydrogen sulfide in waste gas needs substantial amounts of UV pyrolysis oxidization, the foul gas that the oxidation of multiple independent employing chemical absorbing or UV pyrolysis oxidization can cannot process (or needing big energy consumption) decomposes up hill and dale, it is substantially reduced the input of the cost of equipment, and its purified treatment efficiency is high, effective, and floor space is little, install simple, operability is high, integration is high, equipment investment is little, operating cost is low；
2, the complexes noise of the present invention is little, and therefore without equipment individually carries out noise isolation, and energy consumption is low, only need to provide the electric power of corresponding a small amount of chemosorbent and necessity and non-secondary pollution；
3, the complexes integration of the present invention is high, and pre-reaction room and main reaction chamber are arranged in same complete set of equipments casing, therefore take up room little, easy for installation, and only need the single maintenance to equipment that can complete, and safeguard very easy；
4, the present invention has only to provide corresponding discharge duct and power, then continuously foul gas produced in percolate cesspool can be extracted out and be purified, be discharged by purified gas subsequently, therefore can work continuously, process large-minded；
5, diafiltration liquid pool can volatilize a large amount of high concentration foul waste gas, and the waste gas gatherer of the present invention connects with garbage filter liquid pool, its high efficiency can be played through this complete set of equipments, pretreatment chamber and main reaction chamber compound mode, form low concentration foul waste gas then through main reaction chamber advanced treating for high concentration with after the process of pre-reaction room, can thoroughly purify such foul waste gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment being cleaned into covering device of the present invention；
Fig. 2 is the internal structure schematic diagram of the emission-control equipment of Fig. 1；
Fig. 3 is the structural representation of one group of UV transmitting tube of the emission-control equipment of Fig. 2；
Wherein, 1, waste gas gatherer；11, the first air-inducing passage；111, oxygen compensating port；112, valve is regulated；2, emission-control equipment；21, pre-reaction room；211, spray oxidation furnaces；212, centrifugal defogging equipment；22, main reaction chamber；221, UV pyrolysis oxidization equipment；2211, fixed mount；2212, UV transmitting tube；2213, O-ring seal；23, control room；231, button；3, waste gas let-off gear(stand)；31, air exhauster；32, the second air inducing pipeline；33, discharge duct；34, condensate draining.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, the present invention is described further:
Embodiment 1:
With reference to Fig. 1-3, a kind of percolate foul gas is cleaned into covering device, including waste gas gatherer 1, emission-control equipment 2 and waste gas let-off gear(stand) 3；One end connection waste gas gatherer 1 of emission-control equipment 2, the other end connection waste gas let-off gear(stand) 3 of emission-control equipment 2；After foul gas in garbage filter liquid pool is imported by waste gas gatherer 1, pass sequentially through pre-reaction room 21 in emission-control equipment 2, main reaction chamber 22 processes, and is derived by waste gas again through waste gas let-off gear(stand) 3 after having processed；The foul gas that percolate produces refers to the gases such as hydrogen sulfide, ammonia, methyl sulfide, methanthiol.
Waste gas gatherer 1 connects with garbage filter liquid pool, for collecting the pending foul gas of garbage filter liquid pool release；Waste gas gatherer 1 is provided with for guiding the foul gas in diafiltration liquid pool to flow to the first air-inducing passage 11 of emission-control equipment 2；First air-inducing passage 11 connects with emission-control equipment 2, first air-inducing passage 11 is provided with for increasing the oxygen compensating port 111 of oxygen content in the first air-inducing passage 11, to increase the oxygen content in waste gas, oxygen compensating port 111 is provided with the adjustment valve 112 for regulating oxygen flow.
Emission-control equipment 2 include pre-reaction room 21, main reaction chamber 22 and for control equipment run control room 23, pre-reaction room 21 connection adjacent with main reaction chamber 22, control room 23 is arranged on the main reaction chamber 22 side away from pre-reaction room 21, pre-reaction room 21 is sequentially provided with spray oxidation furnaces 211 and centrifugal defogging equipment 212, main reaction chamber 22 is provided with UV pyrolysis oxidization equipment 221；Control room 23 is provided with automatic controlling device, and automatic controlling device includes electric cabinet, master controller and memorizer, master controller and memorizer and is arranged in electric cabinet；Control room 23 is additionally provided with manual control equipment, and manual control equipment is provided with the button 231 for triggering opening of device, closedown and jerk；Emission-control equipment 2 is preferably made up of stainless steel material, when the pre-reaction room 21 of emission-control equipment 2 and main reaction chamber 22 are arranged in this kind of complete set of equipments cabinet, it is little that emission-control equipment 2 takes up an area position, suitable in characteristics of compact layout, narrow field, integration of equipments is high, equipment is installed simple, and plant maintenance is simple, can one man operation.
Pre-reaction room 21 can arrange least one set spray oxidation furnaces 211 and centrifugal defogging equipment 212；Arrange shower nozzle in spray oxidation furnaces 211 to be uniformly sprayed on filler by oxidative absorption liquid, when waste gas is by filler, increase the contact area of waste gas and oxidative absorption liquid, increase absorption efficiency.Oxidative absorption liquid adopts the liquor natrii hypochloritis that oxidisability is extremely strong, and its principle is as follows:
①NaClO+H2S→NaCl+NaSO4+H2O
②NaClO+NH3→NaCl+NaN03+N2+H20
Foul waste gas is after the sodium hypochlorite in spray oxidation furnaces 211 absorbs oxidation Decomposition, it is directly entered main reaction chamber 22 containing a small amount of oxidative absorption liquid and electric component in equipment can be caused certain corrosiveness, reduce service life of equipment, therefore increase the centrifugal defogging equipment 212 that my company's autonomous production a set of is set in pre-reaction room 21.What centrifugal defogging equipment 212 material adopted is 316 rustless steels, by the rotating shaft high speed rotating in centrifugal defogging equipment 212, rotating speed is at 2900-5000r/min, the specification of and the water fog particle size design spoke different according to the content of the moisture in waste gas from the spoke specification that the water smoke in waste gas comes in contact in rotating shaft, general spoke diameter design is 0.5mm-2mm, impact the water smoke in waste gas by the spoke of high speed rotating and produce powerful centrifugal force, steam is separated.The material of pre-reaction room 215 is fiberglass.
Molecular link in table 1 foul gas and the bond energy of correspondence
| In conjunction with | Bond energy (KJ/mol) | In conjunction with | Bond energy (KJ/mol) |
| H-N | 389 | C-H | 413.6 |
| H-C | 347.9 | H-S | 339 |
| C-C | 607.0 | C-N | 291.2 |
| C-O | 326.0 | C-N | 305.0 |
| O-O | 146.0 | S-S | 268.0 |
Also including main reaction chamber 22 in exhaust-gas treatment complexes, the UV pyrolysis oxidization equipment 221 in main reaction chamber 22 includes least one set UV transmitting tube 2212 and least one set power module, and UV transmitting tube 2212 is electrically connected with power module；One group of UV transmitting tube 2212 includes fixed mount 2211 and Duo Gen UV transmitting tube 2212；The present embodiment is six roots of sensation UV transmitting tube 2212; fixed mount 2211 is rectangular box; six roots of sensation UV transmitting tube 2212 is setting arranged in parallel successively; one end of UV transmitting tube is arranged on the side of fixed mount 2211; the other end is arranged on the opposite side of fixed mount 2211; thus can resist and cause that wind speed is too fast because of Wind Volume; and play the effect of protection UV transmitting tube 2212; prevent this UV transmitting tube 2212 from rupturing; the junction of the two ends of UV transmitting tube 2212 and fixed mount 2211 is provided with O-ring seal 2213, is used for avoiding foul gas to overflow corrosion UV transmitting tube 2212.UV transmitting tube 2212 is parallel with the base plate of exhaust-gas treatment complexes, and this UV transmitting tube 2212 can also be perpendicular to the base plate of complexes.UV transmitting tube 2212 is preferably by high-power high energy UV transmitting tube 2212, and the wavelengths of ultraviolet radiation sent is 160nm～185nm, corresponding photon energy respectively 800KJ/mol and 647KJ/mol.And such as the molecular link to crack organic exhaust gas molecule, the photon energy launched must can be higher than the combination of organic exhaust gas molecular link.In the present invention, pending organic exhaust gas mainly includes hydrogen sulfide, ammonia, methyl sulfide and methanthiol etc..Table 1 list corresponding to main molecules key and this molecule that in percolate foul waste gas, pollutant comprise in conjunction with energy.The molecule combination of major pollutants can be all low than the photon energy of 160nm and 185nm wavelength high energy ultraviolet ray as can be seen from Table 1, therefore, under high energy UV roentgenization, the molecular cleavage in percolate foul waste gas is converted into the atom in ionic condition and radical ion.Therefore, after organic exhaust gas enters and is provided with the main reaction chamber 22 organizing UV transmitting tube 2212 more, cracking reaction can be completed wherein.
On the other hand, under the effect of air exhauster 31, waste gas gatherer 1 can absorb foul waste gas continuously from garbage filter liquid pool and enter, and in oxygen compensating port 111 supplemental oxygen, increase the oxygen content in waste gas, provide abundant oxygen for main reaction chamber 22, after entering into main reaction chamber 22, under the direct irradiations organizing UV transmitting tube 2212, the oxygen molecule cracking in fresh air generates ozone, and its chemical process is as follows more:
UV(160nm-185nm)+O2→O-+O+(active oxygen)；O*+O2→O3(ozone)；
Foul waste gas with the atom being cracked in ionic condition and radical ion is carried out Strong oxdiative reaction by the ozone that the character generated is enlivened, these are irradiated, through UV, the organic gas cracked and is reassembled into the compound of harmless or low evil, such as water, carbon dioxide etc., this oxidizing process produces without garbage and sewage, produces secondary pollution thus without to environment.The cracking of material molecule key, oxidizing process in several organic exhaust gas:
UV(160nm-185nm)+H2S→[H]*+[S]*,O2+UV→[O3]*,[H]*+[S]*+[O3]*→SO2+H20；
UV(160nm-185nm)+C2H6S→[C]*+[H]*+[S]*,O2+UV→ [O3]*,[C]*+[H]*+[S]*+[O3]*→SO2+CO2+H2O；
UV(160nm-185nm)+CH4S→[C]*+[H]*+[S]*,O2+UV→[O3]*,[C]*+[H]*+[S]*+[O3]*→SO2+CO2+H2O；
From the above reaction, it is seen that the reaction in main reaction chamber 22 includes two aspects: be that organic exhaust gas cracks under the direct irradiation of UV ray on the one hand, form the atom in ionic condition and radical ion；Being on the other hand that the fresh air that the high energy UV roentgenization external world enters generates the ozone that character is active, the organic exhaust gas after ozone and cracking carries out Strong oxdiative and reacts that generation is harmless or the compound of low evil.Therefore, by the oxidation of above-mentioned chemical absorbing and two kinds of processing mode synergism of UV pyrolysis oxidization, can multiple independent employing chemical absorbing be aoxidized, foul gas that UV pyrolysis oxidization or additive method cannot process decomposes up hill and dale, its purified treatment is effective, and efficiency high-energy and high-efficiency removes the foul gas of percolate.
Waste gas let-off gear(stand) 3 includes air exhauster the 31, second air inducing pipeline 32, discharge duct 33；One end of second air inducing pipeline 32 connects with emission-control equipment 2, the other end connects with discharge duct 33, air exhauster 31 is arranged on the connectivity part of the second air inducing pipeline 32 and discharge duct 33, this air exhauster 31 can also be arranged at the inside of these complexes, to reduce the space outerpace shared by exhaust treatment system further；Air exhauster 31 passes through the first air inducing pipeline by the gas such as carbon dioxide purified in emission-control equipment 2, nitrogen suction discharge duct 33, then discharges the external world from the outlet of discharge duct 33.
The waste gas let-off gear(stand) 3 of the present invention also includes condensate draining 34, and described condensate draining 34 is arranged on bottom main reaction chamber 22, and arranges corresponding condensate drain outlet, and described condensate draining 34 material is 304 rustless steels；The water produced in emission-control equipment 2 can pass through condensate draining 34 and discharge.
The present invention also provides for the processing method that a kind of percolate foul gas is cleaned into the foul gas of covering device, comprises the steps:
1) air exhauster 31 in waste gas let-off gear(stand) 3 is opened, under the effect of air exhauster 31, the air of the foul gas in garbage filter liquid pool and oxygen compensating port 111 quickly enters in waste gas gatherer 1 and mixes, and enters in emission-control equipment 2 again through the first air-inducing passage 11；
2) foul gas passes through pre-reaction room 21, and first, oxidative absorption liquid is uniformly sprayed by spray oxidation furnaces 211, H2S、NH3Foul gas is absorbed oxidation, and then foul gas enters centrifugal defogging equipment 212 steam by stages, and centrifugal rotational speed is 2900-5000r/min；
3) foul gas behind pre-reaction room 21 enters main reaction chamber 22, UV transmitting tube 2212 in main reaction chamber 22 sends ultraviolet rays and foul gas is carried out cracking reaction, foul gas is cracked into atom and the radical ion of ionic condition, and the wavelength of ultraviolet rays is 160nm-185nm；
4) after the oxygen entered from oxygen compensating port 111 flows into main reaction chamber 22, under the irradiation of UV transmitting tube 2212, oxygen is cracked into ozone, ozone and 3) in be cracked into the atom of ionic condition and radical ion generation Strong oxdiative reacts, the foul gas cracked through UV transmitting tube 2212 is reassembled into the compound of harmless or low evil, such as carbon dioxide, nitrogen gas and water etc.；
5) under the effect of air exhauster 31,4) the gaseous compound such as nitrogen in the compound obtained discharges the external world from the discharge duct 33 of waste gas let-off gear(stand) 3, and from condensation tube seat, liquid compound such as water is discharged the external world.
For a person skilled in the art, can technical scheme as described above and design, make other various corresponding changes and deformation, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (10)
1. a percolate foul gas is cleaned into covering device, it is characterised in that include waste gas gatherer, emission-control equipment and waste gas let-off gear(stand)；One end connection waste gas gatherer of described emission-control equipment, the other end connection waste gas let-off gear(stand) of emission-control equipment；Described waste gas gatherer connects with garbage filter liquid pool, for collecting the pending foul gas of garbage filter liquid pool release；Described emission-control equipment includes pre-reaction room and main reaction chamber, the connection adjacent with main reaction chamber of pre-reaction room；Described pre-reaction room is sequentially provided with spray oxidation furnaces and centrifugal defogging equipment, described main reaction chamber is provided with UV pyrolysis oxidization equipment；After foul gas in garbage filter liquid pool is imported by described waste gas gatherer, pass sequentially through pre-reaction room in emission-control equipment, main reaction chamber processes, and is derived by waste gas again through waste gas let-off gear(stand) after having processed.
2. percolate foul gas according to claim 1 is cleaned into covering device, it is characterised in that: described waste gas gatherer is provided with for guiding the foul gas in diafiltration liquid pool to flow to the first air-inducing passage of emission-control equipment；Described first air-inducing passage connects with emission-control equipment.
3. percolate foul gas according to claim 2 is cleaned into covering device, it is characterized in that: described first air-inducing passage is provided with the oxygen compensating port for increasing oxygen content in the first air-inducing passage, described oxygen compensating port is provided with the adjustment valve for regulating oxygen flow.
4. percolate foul gas according to claim 1 is cleaned into covering device, it is characterized in that: the UV pyrolysis oxidization equipment in described main reaction chamber includes least one set UV transmitting tube and least one set power module, and described UV transmitting tube is electrically connected with power module.
5. described percolate foul gas according to claim 4 is cleaned into covering device, it is characterised in that: described one group of UV transmitting tube includes fixed mount and Duo Gen UV transmitting tube；Described fixed mount is rectangular box；Many described UV transmitting tube settings arranged in parallel successively, UV transmitting tube one end is arranged on the side of fixed mount, and the other end is arranged on the opposite side of fixed mount.
6. described percolate foul gas according to claim 5 is cleaned into covering device, it is characterised in that: the described two ends of UV transmitting tube and the junction of fixed mount are provided with for avoiding foul gas to overflow the O-ring seal of corrosion UV transmitting tube.
7. described percolate foul gas according to claim 3 is cleaned into covering device, it is characterised in that: described waste gas let-off gear(stand) includes air exhauster, the second air inducing pipeline, discharge duct；One end of described second air inducing pipeline connects with emission-control equipment, and the other end of the second air inducing pipeline connects with discharge duct, and described air exhauster is arranged on the connectivity part of the second air inducing pipeline and discharge duct；Described air exhauster passes through the first air inducing pipeline by the waste gas suction discharge duct in emission-control equipment, then discharges the external world from the outlet of discharge duct.
8. described percolate foul gas according to claim 1 is cleaned into covering device, it is characterised in that: described emission-control equipment also includes for controlling the control room that equipment runs, and described control room is arranged on the main reaction chamber side away from pre-reaction room；Described control room is provided with automatic controlling device, and described automatic controlling device includes electric cabinet, master controller and memorizer, and described master controller and memorizer are arranged in electric cabinet.
9. described percolate foul gas according to claim 8 is cleaned into covering device, it is characterized in that: the control room of described emission-control equipment is additionally provided with manual control equipment, described manual control equipment is provided with the button for triggering opening of device, closedown and jerk.
10. a percolate foul gas according to claim 7 is cleaned into the processing method of the foul gas of covering device, it is characterised in that comprise the steps:
1) opening the air exhauster in waste gas let-off gear(stand), under the effect of air exhauster, foul gas and the oxygen of oxygen compensating port in garbage filter liquid pool quickly enter mixing in waste gas gatherer, enter in emission-control equipment again through the first air-inducing passage；
2) foul gas passes through pre-reaction room, and first, oxidative absorption liquid is uniformly sprayed by spray oxidation furnaces, and foul gas is absorbed oxidation, and then foul gas enters centrifugal defogging equipment steam by stages, and centrifugal rotational speed is 2900-5000r/min；
3) foul gas behind pre-reaction room enters main reaction chamber, UV transmitting tube in main reaction chamber sends ultraviolet rays and foul gas is carried out cracking reaction, the wavelength of ultraviolet rays is 160nm-185nm, and foul gas is cracked into atom and the radical ion of ionic condition；
4) after the oxygen entered from oxygen compensating port flows into main reaction chamber, under the irradiation of UV transmitting tube, oxygen is cracked into ozone, ozone and 3) in the atom of ionic condition that obtains and radical ion generation Strong oxdiative react, the foul gas cracked through UV transmitting tube is reassembled into the process product of harmless or low evil；
5) under the effect of air exhauster, 4) the process product obtained discharges the external world from waste gas let-off gear(stand).
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| CN108479337A (en) * | 2018-05-11 | 2018-09-04 | 深圳市百欧森软件技术有限公司 | Waste gas processing method based on Gas-Liquid Absorption oxidation reaction |
| CN112957894A (en) * | 2021-02-04 | 2021-06-15 | 深圳市科德环保科技有限公司 | High-efficient integration landfill leachate sewage station exhaust treatment device |
| CN113562880A (en) * | 2021-08-16 | 2021-10-29 | 南通市金宏电化设备有限公司 | Garbage penetrating fluid wastewater treatment equipment and treatment process |
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