CN201410131Y - Deodorizing system by nano-photocatalytic plasma biological method - Google Patents
Deodorizing system by nano-photocatalytic plasma biological method Download PDFInfo
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- CN201410131Y CN201410131Y CN2009200098343U CN200920009834U CN201410131Y CN 201410131 Y CN201410131 Y CN 201410131Y CN 2009200098343 U CN2009200098343 U CN 2009200098343U CN 200920009834 U CN200920009834 U CN 200920009834U CN 201410131 Y CN201410131 Y CN 201410131Y
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Abstract
The utility model relates to a deodorizing system by the nano-photocatalytic plasma biological method, which comprises a first-stage purifying chamber and a second-stage purifying chamber, wherein theoutlet of the first-stage purifying chamber is connected with the inlet of the second-stage purifying chamber, and a coarse filter device, an electrostatic dust collection device, a photocatalyst, aplasma purifying system and a negative-ion generator are sequentially in the first-stage purifying chamber along a direction from the inlet to the outlet, and a spray atomizer is arranged in the second-stage purifying chamber; and the plant extract in a storage system is atomized to form liquid drops with the diameter of less than 1 mum by the spray atomizer, and the outlet of the second-stage purifying chamber is connected with an exhaust system. The utility model has the characteristic of good deodorizing effect.
Description
Technical field
This utility model relates to removes abnormal flavour technical field, a kind of specifically nanometer photocatalytic plasma biological deodorization method and full automatic peculiar smell control deodorization system.
Background technology
One, sanitary sewage foul smell, refuse odor analysis
1, the main component of domestic waste has:
Domestic waste mainly is that the kitchen is surplus, peel accounts for 2/3rds of rubbish total amount, the kitchen is surplus, the peel type organic generally exists with protein, fat and polysaccharide (starch, cellulose etc.) Organic substance form, these Organic substances can produce multiple foul gas pollutant gradually in the effect bottom fermentation of aerobic, anaerobic bacteria, the process of rotting, decomposing.
The reduced representation of course of reaction formula:
The main foul smell composition of domestic waste and sewage has outside the foul gass such as NH3, CH3SH, H2S, also have other multiple odorant to exist, as odorants such as thioether class and aldehydes, but physical characteristic analysis according to these odorants, house refuse is piled up the foul gas material that produces in the processing procedure and is mainly NH3, CH3SH, H2S, and other odorant is liquid form and exists.
The Osaka, Japan Institute of Environmental Science once carried out experimentation to the odorant pollutant intensity of 2000t house refuse discharging, and the source strength that obtains odorant is: H2S9.2kg/d, NH368kg/d, CH3SH0.97kg/d.Simultaneously according to experimentation, rubbish in shipment, discharge process, the odorant that produced in discharging process of sewage accounts for 60% of total generation.
The initial stage that rubbish is placed, the aerobic biochemical reaction takes place under the aerobic bacteria effect, larger molecular organics is decomposed, nitrogen in the Organic substance and sulfur are changed into nitrate (NO3-), sulfate (SO42-), and have CO2 to emit.Then, because garbage truck in the put procedure, hole reduces, oxygen content reduces, under the NO3-and the effect of SO42-in anaerobe that generates in the phase I, the anaerobic biochemical reaction of second stage taking place, finally generates NH3, CH3SH, H2S and (CH3) foul gas such as 2S, be dispersed in the surrounding, make people feel stink.
Municipal sewage plant's foul smell: the roughly fish that produces in running is stench, ammonia is smelly, slough is smelly, smelly, the rotten Caulis et Folium Brassicae capitatae of rotten egg is smelly, excrement is smelly and the off-odor of some factory effluent.
Two, present domestic common traditional processing method
The characteristics of odor pollution self make it existingly be same as atmospheric pollution, are propagation medium with the air, by respiratory system human body are exerted an influence, and have with the stink threshold concentration lowlyer again, require odorant concentration lower even be zero individual character after the processing.This just makes odor pollution administer to have that being difficult to general air-polluting administers.
Tradition has direct burning method, catalyst oxidation method, soda acid ablution, ozone method, chemical reaction method, active carbon physisorphtion, biological deodorization method, soil deodorization method etc. to the processing method of stink.Simply introduce several deodorization process below to make comparisons:
1, soil deodorization principle and characteristics
Soil deodorize mechanism mainly can be divided into physical absorption and biological decomposition two classes, water solublity foul gas (as amine, hydrogen sulfide, lower fatty acid etc.) is removed by the moisture absorption in the soil, but not the dissolubility foul smell then by the soil surface physical absorption then by microbial decomposition in the soil.
Soil deodorization process characteristics are: one, maintenance management expense is low, and deodorizing effect and active carbon are suitable; Two, occupation of land is many, handles to take up an area of to be 2.5-3.3m2/m3 gas; Three, be unsuitable for many heavy rains snowy district, for high temperature, high humidity with contain gases such as water dust and must carry out pretreatment.
2, chemical reaction method deodorization
Chlorine and hydrogen peroxide method.
The actual efficiency of this reaction is restricted by many factors, wherein the most important thing is the time that effective reaction time and reflection continue.
3. biology/activated carbon adsorption deodorize
3.1 operation principle and filler are selected
Biological deodorization is to utilize action of microorganisms deodorize on the carrier filler specific surface area under optimum conditions, and odorous substance is absorbed by filler earlier, and the microbiological oxidation of being adhered on the filler is then decomposed, thereby finishes deodorisation process.In order to be that microorganism keeps high activity, must create a good living environment for it, such as: suitable humidity, pH value, oxygen content, temperature and nutritional labeling etc.Actual production designing requirement carrier filler relative humidity remains on 80%-95%, so often need former water of spray or preliminary sedimentation tank water outlet so that the nutrition of moisture to be provided.
Filler is selected
The main part of biological deodorization tower is a filler.A kind of good carrier filler must satisfy: the microbe species of allowing growth is abundant, perch growth for microorganism bigger specific surface area is provided, nutritional labeling is (N, P, K and trace element) rationally, and good water absorption is arranged, self free from extraneous odour, excellent adsorption, even structure, voidage is big, and material is easy to get and low price, ageing-resistant, operation, maintenance is simple.Filler commonly used has: plastics, medium-soft plastics, dried bark, Radix Glycyrrhizae, fibroid peat or its mixture.
The desired time of staying and surface loading are highly depended in the stacking of deodorize tower packing.Packed height is generally 1.0-1.2m on the engineering.If the filler of selecting is suitable, can accomplishes on the technology that gas distribution is even, get rid of air-flow short circuit, the minimum 0.5m. that can be
3.2 activated carbon adsorption deodorize
Active carbon utilizes porous physical characteristic to come macromole gas and particle in the absorbed air, is mostly to reach by forced-air circulation the purpose of filter net air, needs the periodic replacement filter element, and actual service efficiency is not high, and unable to get up is eradicated the purpose of harmful gas.In addition, active carbon can only temporarily adsorb certain foul smell abnormal flavour, when temperature, wind speed are elevated to a certain degree, adsorbed foul smell, abnormal flavour just might dissociate out, enter in the breathing space once more, absorption reaches capacity when no longer having absorbability, and as not changing filtering material, its adsorbed foul smell, abnormal flavour, antibacterial etc. will be released at any time and become stealthy bomb.
The washing absorption process is relatively poor to effects such as hydrogen sulfide, mercaptan; There is secondary pollution in medicinal liquid washing absorption process, need carry out wastewater treatment, and is also improper; Although directly the firing method deodorising effect is good, need combustion apparatus and burning cost height; The catalyst combustion method needs noble metal to make catalyst and easily aging, the cost height, and effect is also not satisfactory; Activated carbon adsorption is relative with the disposable engineering measure of ozone oxidation method simple and deodorising effect is also more satisfactory, but the management of activated carbon adsorption is wasted time and energy and activated carbon regeneration expense is big; Taking the ozone oxidation rule to still need except the expense height steps up security.
Summary of the invention
The purpose of this utility model is for providing a kind of treatment effect good nanometer photocatalytic plasma biological deodorization system.
The technical scheme that realizes above-mentioned purpose is as follows:
A kind of nanometer photocatalytic plasma biological deodorization system, comprise first class purification chamber and two-level purifying chamber, the outlet of described first class purification chamber is connected with the import of two-level purifying chamber, described first class purification is indoor to be disposed with thick effect filter plant, electrostatic precipitation equipment, photocatalyst, plasma cleaning system and anion generator by import to Way out, the indoor spray atomizer that is provided with of described secondary purification, described spray atomizer is atomized into drop below the diameter 1 μ m with the plant extraction liquid in the storage system, and the outlet of described two-level purifying chamber connects exhaust system.
This utility model reaches more than 90% the deodorization rate of rubbish, the purifying rate height, and it is simply effective that method and apparatus of the present utility model carries out deodorization.
Description of drawings
Fig. 1 is the structural representation of this utility model deodoration system
Fig. 2 is the sketch map of plasma cleaning system of the present utility model
Fig. 3 is the flow chart of biological treatment of the present utility model
Fig. 4 is the time plot of this utility model to vulcanizing treatment
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of nanometer photocatalytic plasma biological deodorization system, comprise first class purification chamber and two-level purifying chamber, the outlet of described first class purification chamber is connected with the import of two-level purifying chamber, described first class purification is indoor to be disposed with low efficient filter screen 1 by import to Way out, electrostatic precipitation equipment 2, photocatalyst 3, plasma cleaning system 4 and anion generator 5, the indoor porch of described secondary purification is provided with wind speed homogenizing plate 6 and the thick filter course 7 of imitating successively, secondary purification is indoor to be provided with one, two, three grades of fillers 8,9,10, the filler top is provided with spray atomizer 11, described spray atomizer passes through high-pressure pump 12 with plant extract liquid pump such as spray atomizer 11 in the storage system 13, spray atomizer 11 is atomized into drop below the diameter 1 μ m with plant extraction liquid, the outlet of described two-level purifying chamber connects exhaust system 14, first class purification chamber inlet connecting pipe 15, be connected to air-suction cover 16 on the pipeline, described air-suction cover is arranged on around the rubbish.
This utility model reaches the deodorization purpose as follows:
A. pre-charged control of dust;
B. plasma purifies;
C. plant extraction liquid purifies, and the drop that plant extraction liquid is atomized into below the diameter 1 μ m purifies;
D. nanometer photocatalytic purification.
This utility model is to integrate electrostatic precipitation+nano-photo catalytic+plasma, can remove airborne dust, suspended particulate substance, pellet effectively, can effectively remove harmful gas with foreign flavor materials such as sulfide, ammonia, aldehyde, ketone again, reach the purpose that sterilization, sterilization, removal dust, removing abnormal flavour etc. purify air.The operation principle of its core apparatus plasma air purification system is:
Pre-charged control of dust is to utilize severe non-uniform electric field, forms corona discharge, produces plasma, a large amount of electronics that wherein comprise and negative ions are under the effect of electric-force gradient, with airborne microgranule generation inelastic collision, thereby, make it to become charged particle attached to top.Under the effect of extra electric field power, charged particle moves to dust collecting electrode, finally is deposited on the dust collecting electrode.Its processing procedure is divided into three phases:
A.e
-+ M (gas molecule) → M
-
B.M
-+ PM (microgranule) → (PMM)
-
C. (PMM)
-→ PMM (being deposited on the dust collecting electrode).
Electrostatic precipitation is a physical process, in this process, to being suspended in diameter in the air can suck granule (PM10) less than total suspended particles (TSP) and the diameter of 100 μ m less than 10 μ m the certain removing effect of generation.
Step 22, plasma cleaning system
Can produce the cluster ion of high-energy, high concentration during the work of plasma reaction section, wherein cation can penetrate bacteria cell wall, gos deep into cell wall inside, destroys the electrolytical balance of cell, damages cell membrane, causes the rapid death of antibacterial.
This system can produce a large amount of plasmas, and high-frequency discharge produces the moment high-energy, can open some molecular links chemical bond of harmful gas with foreign flavor molecule very closely, makes it resolve into simple substance atom or harmless molecule; The hydroxyl free radical that comprises a large amount of high energy electrons, ion, excited state particle in the plasma and have strong oxidizing property, the average energy of these active particles is higher than the bond energy of gas molecule, frequent collision takes place in they and harmful gas molecule, open the chemical bond of gas molecule, also can produce free radical and the extremely strong O3 of oxidisability such as a large amount of OH, HO2, O simultaneously, they and harmful gas molecule generation chemical reaction generate harmless product.In chemical reaction process, add suitable catalyst, can make the loosening or weakening of molecular chemistry key, thereby the activation energy that reduces gas molecule quickens chemical reaction.
Chemical reaction in the plasma mainly is to excite by the high energy electron that the gas electrion produces to finish.These high energy electrons, particle, ion, hydroxyl free radical and gas with foreign flavor molecular collision make gas molecule be energized into higher energy level.Be excited to the molecule of high level, because its internal energy increase, chemical reaction also can take place with other special types in the fracture that key both can take place.Typical response type is as shown in table 1.
Table 1
Can see that from table 1 nonequilibrium plasma is the effective ways that make molecule activation, it can make nearly all molecular excitation, ionization and free radicalization, produce a large amount of active group e.These active species make the reaction that is difficult to realize under usual conditions to finish in plasma system at an easy rate.Especially removing, can make in a short period of time it even decompose fully air pollutants.
Plasma decomposes air pollutants can be crossed following two kinds of approach and be carried out:
A. the high level electronics directly acts on contaminant molecule
The various fragment molecules of e-
B. high level electronics indirect action is in contaminant molecule
E-+O2 (N2, H2O) → 2O (N, N. .OH)+the contaminant molecule neutral molecule
Table 2: the oxidizing potential of various oxidants
| Oxidant | Oxidizing potential (volt) | Relative oxidizing potential (logarithm value) |
| The hydroxyl free radical | 2.80 | 2.05 |
| Oxygen atom | 2.42 | 1.78 |
| Ozone | 2.07 | 1.52 |
| Hydrogen peroxide | 1.77 | 1.30 |
| The dioxygen free radical | 1.70 | 1.25 |
| Hypochlorous acid | 1.49 | 1.10 |
| Chlorine | 1.36 | 1.00 |
More than explanation, the energy of plasma generation is far longer than traditional ozone and hydrogen peroxide, strong the striking off of molecular link of the refuse odor of the remnants that can can't purify above material, saboteur's structure, thus reach the removing gas with foreign flavor.
Can see that from table 1 nonequilibrium plasma is the effective ways that make molecule activation, it can make nearly all molecular excitation, ionization and free radicalization, produce a large amount of active group e.These active species make the reaction that is difficult to realize under usual conditions to finish in plasma system at an easy rate.Especially removing, can make in a short period of time it even decompose fully air pollutants.
Plasma decomposes air pollutants may be crossed following two kinds of approach and be carried out:
A. the high level electronics directly acts on contaminant molecule
Various fragment molecules
B. high level electronics indirect action is in contaminant molecule
E-+O2 (N2, H2O) 2O (N, N. .OH)+the contaminant molecule neutral molecule
Anion takes place, and increases the air vitamin.
When producing plasma, also produce a large amount of anion, if it is these anion are discharged into the interior space, steady by regulating air ion on the one hand; On the other hand, can also remove airborne pollutant effectively.The anion of high concentration collides with airborne toxic chemical substance and pathogenic bacteria suspended particulate substance and makes it electronegative.These electronegative particulate matters can attract the particulate matter (comprising airborne antibacterial, virus, spore etc.) of its paripheral zone positive electricity, thereby gather increase.The quality that the process of gathering lasts till particulate matter always is enough to make it to drop to till the ground.
Step 33, bioanalysis.
This utility model eliminating smell agent contains reactivity very high functional group chemical compound and terpenoid, and being atomized into diameter through this utility model nebulizer is gas molecule below the 1um.Drop has very big specific surface area, has very big surface energy.Average every mole is about tens kilocalories.The energy of this order of magnitude has been the 1/3-1/2 of bond energy in many elements.The surface of solution is the aerial abnormal flavour molecule of absorption effectively, simultaneously the spatial configuration of the abnormal flavour molecule that is adsorbed is changed, weakened the chemical combination key in the abnormal flavour molecule, made the unstability of foul smell molecule increase, easy and other molecules carry out chemical reaction.Because diameter is little, specific surface area increases, and increases than the table effect, has very strong activity.Be distributed in the aerial of Polluted area, as spraying above rubbish heap, these materials can bump with the refuse odor molecule, and produce chemical shift in collision.This compounds instability is easy to further resolve into harmless material.
Functional group and terpenoid with reactivity can be used for redox reaction: when such material and sulfide molecules were collided, the sulfur of oxidable negative bivalence produced terpene base sulfide.This compounds instability is easy to further be decomposed into sulfate ion.For example:, eliminate its abnormal flavour with this utility model natural botanical extraction liquid and just belong to this class reaction in the various garbage disposals place that generates hydrogen sulfide.
This utility model eliminating smell agent can with amine CH3NH2, (CH3) 3N, ammonia smelly (ammonia NH3), rotten egg smelly (hydrogen sulfide h2s), rotten Caulis et Folium Brassicae capitatae are smelly, Organic substances reactions such as organic sulfur compound CH3 (2S), excrement class C8H5NHCH3.Material in this utility model eliminating smell agent contains hydroxyl.Because the electronegativity of oxygen is greater than carbon, oxygen is to show negative charge in key, and carbon is positive charge.Positively charged carbon is the electrophilic nucleophilic attack that is subjected to easily.Here it is contain carbonyl chemical compound can with the reason of nucleophilic chemical compound reaction.As: amine CH3NH2, (CH3) 3N, ammonia smelly (ammonia NH3), rotten egg smelly (hydrogen sulfide h2s), rotten Caulis et Folium Brassicae capitatae smelly, organic sulfur compound CH3 (2S), excrement class C8H5NHCH3.These chemical compounds are the main composition of refuse odor just.Hydroxyl also is the very big group of polarity, thus alcohol can react with aldehydes, generate undemanding, be called the hemiacetal molecule.Alcohol also can with organic acid reaction, some organic acid also are one of compositions of foul smell.
3.2 this utility model taste removal natural botanical extraction liquid cleaning principle
Plant extraction liquid of the present utility model is for to extract from terpene substances.Can obtain by extraction in the special-purpose refining equipment.
The refuse odor composition mostly is amine CH3NH2, (CH3) 3N, ammonia smelly (ammonia NH3), rotten egg smelly (hydrogen sulfide h2s), rotten Caulis et Folium Brassicae capitatae smelly, organic sulfur compound CH3 (2S), excrement class C8H5NHCH3, after these materials that have an active group are absorbed by liquid phase, especially easily by biological oxidation, after active group was oxidized, foul odour had just disappeared.Foul smell is after this utility model taste removal natural botanical extraction liquid decomposes, and product is different.As nitrogenous foul smell, after the Ammonification of eliminating smell agent, be decomposed into NH3, NH3 by the effect of nitrite bacteria, nitrobacteria, further is oxidized to stable tasteless chemical compound again; And the foul smell of sulfur-bearing produces H2S after eliminating smell agent decomposes, and H2S can be by the further oxidation Decomposition of quilt.
Contained effective molecule is the extracting solution that comes from plant in this utility model natural botanical extraction liquid, and they contain a plurality of conjugated double bond systems mostly, has the stronger ability that electron pair is provided, and has increased the reactivity of abnormal flavour molecule so again.
The foul smell molecule that is adsorbed on the surface of this utility model extracted form natural plant solution contacts with airborne oxygen, the foul smell molecule of this moment makes its reactivity increase because of above-mentioned two kinds of reasons, changed the mechanism with oxygen reaction, thereby can react with oxygen at normal temperatures.
Comprehensive above elaboration the, the foul smell molecule in the rubbish are dispersed in spatial natural botanical extraction liquid drop absorption, depress the generation catalytic oxidation at room temperature and generate tasteless nontoxic molecule, as nitrogen, water, sulfate ion etc.The reaction of this utility model natural botanical extraction liquid and foul smell molecule can be from several respects.
(1) acid-base reaction
As containing alkaloid in this utility model taste removal plant extraction liquid, it can with amine CH3NH2, (CH3) 3N, ammonia smelly (ammonia NH3), rotten egg smelly (hydrogen sulfide h2s), smelly, the multiple foul smell gas molecule reaction such as organic sulfur compound CH3 (2S), excrement class C8H5NHCH3 of rotten Caulis et Folium Brassicae capitatae.Different with general acid-base reaction is that general alkali is deleterious, and is unedible, can not biodegradation.And this utility model natural botanical extraction liquid is can be biodegradable.
(2) catalytic oxidation
As amine, ammonia smelly (ammonia NH3), rotten egg smelly (hydrogen sulfide h2s), rotten Caulis et Folium Brassicae capitatae smelly, organic sulfur compound CH3 (2S), excrement class C8H5NHCH3 in the ordinary course of things, can not carry out oxidation reaction with airborne oxygen.But in this utility model taste removal natural botanical extraction liquid, under the catalytic action of effective ingredient, can react with airborne oxygen.With the reaction under alkali condition behind the oils and fats adding natural botanical extraction liquid is example, and the deodorization principle of natural botanical extraction liquid is:
R-OH
R '-OH+3NaOH generates (unconditionally) RNa+R ' Na+R " Na+3 water
R”-OH
The hydrogen sulfide reaction:
R+H2S H2O→RH++HS-
HS-+O2+H2O→SO42-+OH-
OH-+RH+H2O→R+H2O
In the formula: R is the vegetation water component, and H2S is the hydrogen sulfide composition, and OH-is hydroxide ion (alkaline medium)
The reactional equation of ammonia is:
R-NH2+NH3→R-NH2++N2+H2O
R-COOH+NH3→RCOOH4
R-NH2 is vegetation water component (carrier of an amido) in the formula, and NH3 is a gaseous ammonia, and OH-is hydroxide ion (alkaline medium)
(3) analyze from thermodynamic (al) angle
Through this utility model taste removal drop of this utility model atomizer atomizing, wherein diameter is below 1um, and in this case, the surface energy of drop is to reach 1/5th and 1/3rd of some organic compound bond energys.In this case, be enough to destroy the key in the foul smell molecule, make their instabilities, easily decompose.
(4) absorption and dissolving
Adsorbable and the abnormal flavour molecule of dissolving in the foul smell of some glucides in the vegetation water.
(5) esterification reaction
Tannin in the vegetation water can be with abnormal flavour molecule generation fatization or transesterification reaction, thereby removes the material that abnormal flavour or generation have fragrance.Because the component of foul smell is ever-changing, very complicated, so the deodorization mechanism of our vegetation water also is the main constituent in the foul smell, handle targetedly.Because of its advanced technology and scientific methods, truly accomplished green, environmental protection, neither can influence health, can not cause secondary pollution to environment yet.
(6) redox reaction
Aldehyde material has oxidisability, and the effective molecule that has in this utility model natural botanical extraction liquid has reproducibility.They can directly react.
With aldehydes and Ammonia reaction: H
R-NH2+HCHO R-NH2+H-C＝O CO2+H2O
R-NH2+NH3 R-NH2+N2+H2O
3.3 the composition of this utility model natural botanical extraction liquid:
In this utility model technology, to be that a series of plant extraction liquids are composite form employed natural botanical extraction liquid, and these plant extraction liquids contain the Organic substance of scent of, and they extract from plants such as tree, grass and flower.These have the Organic substance chemical compound of flavor to contain the chemical compound of a large amount of complexity, and they all are most plant maiies body of oil,
3.4 this utility model bioanalysis--the mechanism of natural botanical extraction liquid decompose odor molecule
Utilizing this utility model natural botanical extraction liquid to carry out deodorization is a kind of widely used safe and effective procedure, and in this utility model technology, the mechanism that natural plants decomposes the refuse odor molecule can be expressed as follows:
The reaction of table 3 this utility model rubbish smell removal liquid and part foul smell molecule
| Sequence number | The foul smell molecule | React with this utility model rubbish |
|
| 1 | | Decomposition reaction | |
| 2 | Amyl | Decomposition reaction | |
| 3 | Ammonia | Soda acid, |
|
| 4 | | Decomposition reaction | |
| 5 | Butylamine | Soda acid, |
|
| 6 | Cadaverine (1, the 5-pentanediamine) | Soda acid, |
|
| 7 | | Redox reaction | |
| 8 | | Decomposition reaction | |
| 9 | Butylene | Decomposition reaction | |
| 10 | Butanediamine | Soda acid, |
|
| 11 | Diisopropylamine | Soda acid, |
|
| 12 | Dimethylamine | Soda acid, |
|
| 13 | Dimethyl | Decomposition reaction | |
| 14 | Diphenyl | Decomposition reaction | |
| 15 | Ethamine | Soda acid, |
|
| 16 | Ethyl mercaptan | Decomposition reaction | |
| 17 | Hydrogen sulfide | Decomposition, acid-base reaction | |
| 18 | Indole | Soda acid, polyreaction | |
| 19 | Methylamine | Soda acid, polyreaction |
| 20 | Methanthiol | Decomposition reaction |
| 21 | Isobutyl mercaptan | Decomposition reaction |
| 22 | Putrescine (1, the 4-butylamine) | Soda acid, polyreaction |
| 23 | Pyridine | Soda acid, polyreaction |
| 24 | Scatol (3-methylindole) | Soda acid, polyreaction |
| 25 | Sulfur dioxide | Redox reaction |
| 26 | Three butyl mercaptan | Decomposition reaction |
| 27 | Triethylamine | Soda acid, polyreaction |
| 28 | Thiocresol | Decomposition reaction |
| 29 | Phenylmercaptan. | |
| 30 | Styrene monomer | Absorption |
Several deodorizing method contrasts of table 4
| Method | Excellent, shortcoming |
| Active carbon adsorption | To ethanol class, fats mercaptan effectively be suitable for the little regeneration expense of large-wind-volume low-concentration foul smell payload influence of change big, take time that it is unfavorable that high concentration is handled, foul smell is big by resistance |
| Ion-exchange-resin process | The frequent regeneration of wanting applied widely |
| Unfavorable to the high concentration foul smell | |
| Direct firing method | Deodorising effect is good, reaches 90% simple structure, safeguards when easy oxygen is not enough, will cause the imperfect combustion burning fee that the danger that produces NOx is arranged in burning with height |
| Oxidizing process | Few to all very effective ozone consumptions such as hydrogen sulfide, methyl mercaptan, dimethyl sulphide, amine, aldehydes, running management must and be used with washing, activated carbon easily to the ammonia weak effect |
Step 44, photocatalysis technology.
This utility model photo catalysis air purifying system, under the effect and control of wide POP photon wave producer and proprietary particulate metal catalysis media, produce hydroxyl ion, super oxonium ion, hydrogen peroxide and pure state negative oxygen ion, can effectively kill the antibacterial, virus and the mycete that surpass in the air more than 99% rapidly, and dissolve airborne VOC chemical gas, pellet and abnormal flavour, purification is finished after-purification gas and is reduced to oxygen and hydrogen rapidly, there is not any chemical residual material, do not produce secondary pollution, to human body and environmentally friendly.
Five, example
This sewage treatment plant's disposal ability is about 164*104m3/d.Studies show that the sulfide in the pretreatment structures has two big main source: NORs and NCOs gathering system (H2S that each system flows into account for treatment plant's total load 45%).Intrasystem liquid phase sulfide concentration is about 3-5mg/L when having a moderate climate, and the sulfide concentration that enters pretreatment structures scrubber is about that the 150-200mg/L. chemical agent adds a little and the time of staying is seen Fig. 3.
Result of study shows: the H2S concentration that enters the preliminary sedimentation tank scrubber reduces 50%-90%, and this depends primarily on the dispensing ratio.The environment stench reduces in a large number after adding vegetation water, and the oxygen transfer rate in the two stage treatment facility also obviously increases.
As can see from Figure 4, when the hydrogen sulfide of high concentration passed through this utility model CHO-91 nanometer photocatalytic plasma biological abnormal flavour control system, the clarification time was long more, and concentration is just low more.Can continue refuse odor is progressively purified totally.
Claims (1)
1. nanometer photocatalytic plasma biological deodorization system, it is characterized in that: comprise first class purification chamber and two-level purifying chamber, the outlet of described first class purification chamber is connected with the import of two-level purifying chamber, described first class purification is indoor to be disposed with thick effect filter plant by import to Way out, electrostatic precipitation equipment, photocatalyst, plasma cleaning system and anion generator, the indoor spray atomizer that is provided with of described secondary purification, described spray atomizer is atomized into drop below the diameter 1 μ m with the plant extraction liquid in the storage system, and the outlet of described two-level purifying chamber connects exhaust system.
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| CN104534573A (en) * | 2015-01-12 | 2015-04-22 | 苏州金瀑雨环保科技有限公司 | Fresh air purification system |
| CN104815512A (en) * | 2015-05-27 | 2015-08-05 | 成都虹华环保科技股份有限公司 | Circulating water-washing type waste gas treatment device |
| CN104841234A (en) * | 2015-05-27 | 2015-08-19 | 成都虹华环保科技股份有限公司 | Washing type waste gas treatment device |
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2009
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| CN104841234A (en) * | 2015-05-27 | 2015-08-19 | 成都虹华环保科技股份有限公司 | Washing type waste gas treatment device |
| CN104841233A (en) * | 2015-05-27 | 2015-08-19 | 成都虹华环保科技股份有限公司 | Circulatory rinsing type waste gas treatment system |
| CN104857800A (en) * | 2015-05-27 | 2015-08-26 | 成都虹华环保科技股份有限公司 | Safe and reliable circulating water washing type waste gas treatment system |
| CN104815512B (en) * | 2015-05-27 | 2016-05-04 | 成都虹华环保科技股份有限公司 | A kind of emission-control equipment of circulating water wash type |
| WO2016188209A1 (en) * | 2015-05-27 | 2016-12-01 | 成都虹华环保科技股份有限公司 | Cyclic washing type waste gas treatment system |
| WO2016188208A1 (en) * | 2015-05-27 | 2016-12-01 | 成都虹华环保科技股份有限公司 | Safe and reliable cyclic washing type waste gas treatment system |
| CN106196223A (en) * | 2016-08-31 | 2016-12-07 | 惠州市富的旺旺实业发展有限公司 | A kind of biological electrostatic oil and smoke cleaner and purification method thereof |
| CN106178945A (en) * | 2016-09-21 | 2016-12-07 | 东莞市金森工业机械有限公司 | A kind of plasma light catalytic control equipment |
| CN110279882A (en) * | 2019-07-03 | 2019-09-27 | 合肥卓畅农业科技有限公司 | A kind of sterilizing and purifying device on pig farm |
| CN112432175A (en) * | 2020-11-21 | 2021-03-02 | 新疆乾坤环能科技有限公司 | Solid waste incineration advanced oxidation synergistic system |
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Assignee: Shanghai Anjule Environmental Protection Technology Co., Ltd. Assignor: Zheng Chengyu Contract record no.: 2012310000006 Denomination of utility model: Deodorizing system by nano-photocatalytic plasma biological method Granted publication date: 20100224 License type: Exclusive License Record date: 20120109 |
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