CN108392982A - A kind of deodorant and preparation method thereof and application method - Google Patents
A kind of deodorant and preparation method thereof and application method Download PDFInfo
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- CN108392982A CN108392982A CN201810550673.2A CN201810550673A CN108392982A CN 108392982 A CN108392982 A CN 108392982A CN 201810550673 A CN201810550673 A CN 201810550673A CN 108392982 A CN108392982 A CN 108392982A
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- 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
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
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- 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
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- 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
- B01D53/52—Hydrogen sulfide
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- 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
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2255/802—Photocatalytic
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Abstract
The present invention relates to deodorant technical field, more particularly to a kind of deodorant and preparation method thereof and application method.The deodorant includes the deodorant liquid A stored respectively and deodorant liquid B, the deodorant liquid A include each component of following weight percent：Polyvinyl alcohol 20%, glutaraldehyde 7%, nano-titanium dioxide 1%, neopelex 4%, water 68%.The deodorant liquid B includes each component of following weight percent：Ferric trichloride 10%, dichloride copper 4%, hydrochloric acid 2%, water 84%.When in use, the deodorant liquid B that deodorant liquid A is diluted to addition same volume after 5 15 times is mixed, and is directly sprayed after mixing or is sprayed after standing 0.5 2h.The deodorant of the present invention using simple, hold time length by deodorization, and deodorizing effect is notable.The deodorant of the present invention is sprayed on the surface of smelly body, can form a kind of very thin cover film, foul smell is effectively prevent to distribute.Nano-titanium dioxide, iron ion and copper ion in deodorant have catalysis, combination to hydrogen sulfide, can effectively carry out deodorization.
Description
Technical field
The present invention relates to deodorant technical field, more particularly to a kind of objects for the class that stinks to rubbish, excrement etc.
Deodorant of matter deodorization and preparation method thereof and application method.
Background technology
In destructor plant, refuse transfer station and the breeding process of livestock and poultry, if sanitized is not in time, often
It gives an offensive smell, includes NH in these foul smell distributed3、H2S, the odorous air of long-term breathing zone can also produce the body and mind of people
Raw undesirable influence.The existing method for preventing foul smell from generating has physics deodorization method, biological deodorization method and chemical deodorization method.Physics
Deodorization method is mainly deodorized by the method washed and adsorbed, and wherein WATER-WASHING METHOD is for a long time using can cause the serious of water resource
Waste；Although physisorphtion method is simple, the deodorization duration is shorter, needs to use a large amount of adsorbent.Biology is de-
Although smelly method deodorising effect is relatively good, the deodorization period is longer, cannot be timely deodorized.Current chemical deodorization method master
There are combustion method and chemical deodorizing agent, wherein combustion method will also result in the pollution of environment during burning, palliative.
Existing chemical deodorizing agent action time is relatively short, is directly reacted with stink after sprinkling, can maintain 1-2 days effects.By
It is constantly generated in the stink of some rubbish, cultivation excrement etc., it is therefore desirable to which continuous sprinkling could maintain deodorizing effect.
Invention content
To solve the shortcomings of the prior art, a kind of deodorization of present invention offer is held time, and long, deodorizing effect is significant
Deodorant and preparation method thereof and application method.
The technical scheme is that：
A kind of deodorant, including the deodorant liquid A and deodorant liquid B that store respectively,
The deodorant liquid A includes each component of following weight percent：
Polyvinyl alcohol 5-30%, glutaraldehyde 1-15%, nano-titanium dioxide 0.5-2%, neopelex 1-
5%, surplus is water；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 1-10%, dichloride copper 0.5-4%, hydrochloric acid 1-5%, surplus is water.
Preferably, the deodorant liquid A includes each component of following weight percent：
Polyvinyl alcohol 15-30%, glutaraldehyde 5-15%, nano-titanium dioxide 1-2%, neopelex 4-5%,
Surplus is water；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 5-10%, dichloride copper 1-4%, hydrochloric acid 2-5%, surplus is water.
Preferably, the deodorant liquid A includes each component of following weight percent：
Polyvinyl alcohol 20-30%, glutaraldehyde 10-15%, nano-titanium dioxide 1-2%, neopelex 4-
5%, surplus is water；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 5-10%, dichloride copper 1-4%, hydrochloric acid 2-5%, surplus is water.
Preferably, the deodorant liquid A includes each component of following weight percent：
Polyvinyl alcohol 20%, glutaraldehyde 7%, nano-titanium dioxide 1%, neopelex 4%, water 68%；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 10%, dichloride copper 4%, hydrochloric acid 2%, water 84%.
Preferably, the grain size of the nano-titanium dioxide is：5-15nm.
Preferably, the hydrochloric acid is concentrated hydrochloric acid, and a concentration of 35-38% of the concentrated hydrochloric acid, the glutaraldehyde is acidity penta
Dialdehyde.
The preparation method of above-mentioned deodorant, the deodorant liquid A and deodorant liquid B are prepared respectively, and when use is mixed, including
Following steps：
The preparation of deodorant liquid A：70-90 DEG C is heated the water to, polyvinyl alcohol is poured into and is stirred, it is molten to be stirred to polyvinyl alcohol
Neopelex and nano-titanium dioxide is added in Xie Hou, and glutaraldehyde is added after being cooled to 30-50 DEG C, is formed sticky
Solution, be cooled to room temperature, stand and not stratified deodorant liquid A is made；
The preparation of deodorant liquid B：Hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, blue is made after dissolving
Deodorant liquid B.
Preferably, a kind of preparation method of deodorant, the deodorant liquid A and deodorant liquid B are prepared respectively, and when use is mixed
It closes, includes the following steps：
The preparation of deodorant liquid A：80 DEG C are heated the water to, polyvinyl alcohol is poured into and is stirred, is stirred to polyvinyl alcohol dissolving
Afterwards, neopelex and nano-titanium dioxide is added, glutaraldehyde is added after being cooled to 40 DEG C, is formed sticky molten
Liquid is cooled to room temperature, and standing is not stratified to be made deodorant liquid A；
The preparation of deodorant liquid B：Hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, blue is made after dissolving
Deodorant liquid B.
Deodorant liquid A is first diluted 0-15 times by the application method of above-mentioned kind of deodorant, is then added after being diluted with deodorant liquid A
The deodorant liquid B of same volume is mixed, and is directly sprayed with spraying apparatus after mixing or is used spray after mixed liquor is stood 0.5-2h
Mist equipment is sprayed at the surface of smelly body.
Preferably, deodorant liquid A is first diluted 5-10 times by a kind of application method of deodorant, is then added dilute with deodorant liquid A
The deodorant liquid B for releasing rear same volume is mixed, and is directly sprayed with spraying apparatus after mixing or is used spray after mixed liquor is stood 1h
Mist equipment is sprayed at the surface of smelly body.
What the present invention was reached has the beneficial effect that：
The deodorant of the present invention includes deodorant liquid A and deodorant liquid B, in proportion by deodorant liquid A and deodorant liquid B when use
Dilution mixes, and the surface of smelly body is sprayed at spraying apparatus, forms a kind of very thin cover film, prevents foul smell from dissipating
Hair, the effect duration of deodorization are long.Meanwhile iron ion in deodorant and copper ion have combination to hydrogen sulfide, can have
The substance progress deodorization of the class that stinks to rubbish, excrement etc. of effect.Deodorant set film covering, the chemical deodorizing of the present invention
And light-catalysed effect, using simple, deodorizing effect is notable.
The specific mechanism of action of the deodorant of the present invention is as follows：
Nano-titanium dioxide in deodorant of the present invention has light-catalysed effect, can for a long time be killed under the action of ultraviolet light
Bacterium makes Ti02 activate and generates the free radical with high catalytic activity, can generate under the action of daylight or light middle-ultraviolet lamp
Very strong photooxidation and reducing power can be catalyzed, photodissociation is attached to the organic matters such as the various formaldehyde of body surface and part is inorganic
Object.
Nano-TiO_2 photocatalysis mechanism of degradation is divided into 7 steps to complete light-catalysed process, and photocatalytic process generates
OH-, O2-, OOH-free radical there is strong oxidizing property, can be most of organic pollutant degradations for being adsorbed on the surfaces TiO2
CO2, H2O aoxidize inorganic pollution or are reduced to harmless object, and specific reaction mechanism is as follows：
1、TiO2+hv→eˉ+h+
2、h++H2O→OH+H+
3、eˉ+O2→OOˉ
4、OOˉ+H+→OOH
5、2OOH→O2+H2O2
6、OOˉ+eˉ+2H+→H2O2
7、H2O2+eˉ→OH+OHˉ
8、h++OHˉ→OH
After the deodorant spraying of the present invention in the cover film that is formed fixed iron ion and copper ion can with hydrogen sulfide into
Row reaction, specific reaction mechanism are as follows：
Fe2O3H2O+3H2S=Fe2S3H2O+3H2O
Fe2O33H2O+3H2S=2FeS+S+6H2O
Cu2++H2S=CuS+2H+
Specific implementation mode
For ease of it will be understood by those skilled in the art that the present invention, carries out further the present invention with reference to embodiment
It is bright.
Embodiment 1
A kind of deodorant, including the deodorant liquid A and deodorant liquid B, the deodorant liquid A that store respectively include following weight percent
The each component of ratio：
| Component | Weight percent (%) |
| Polyvinyl alcohol | 20 |
| Glutaraldehyde | 7 |
| Nano-titanium dioxide | 1 |
| Neopelex | 4 |
| Water | 68 |
The grain size of above-mentioned nano-titanium dioxide is：5-15nm, above-mentioned glutaraldehyde are senaside.
The preparation method of above-mentioned deodorant liquid A is：80 DEG C are heated the water to, polyvinyl alcohol is poured into and is stirred, is stirred to poly-
After vinyl alcohol dissolving, neopelex and nano-titanium dioxide is added, glutaraldehyde is added after being cooled to 40 DEG C, is formed
Sticky solution is cooled to room temperature, and standing is not stratified to be made deodorant liquid A.
The deodorant liquid B includes each component of following weight percent：
| Component | Weight percent (%) |
| Ferric trichloride | 10 |
| Dichloride copper | 4 |
| Concentrated hydrochloric acid | 2 |
| Water | 84 |
Above-mentioned hydrochloric acid is concentrated hydrochloric acid, a concentration of 35-38% of the concentrated hydrochloric acid.
The preparation method of above-mentioned deodorant liquid B is：Concentrated hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, it is molten
The deodorant liquid B of blue is made after solution.
During specific use：Deodorant liquid A is diluted with water 5-10 times, deodorant liquid A etc. after being then added and diluting
The deodorant liquid B of volume, is mixed, and is sprayed directly on the surface of cultivation excrement after mixing with spraying apparatus.After testing, originally
Deodorant in embodiment can reach 97% to the removal rate of hydrogen sulfide, and after continuously spraying three days, deodorizing effect can be kept
20 days.
Embodiment 2
On the basis of embodiment 1, as different from Example 1, the smelly liquid A includes each group of following weight percent
Point：
| Component | Weight percent (%) |
| Polyvinyl alcohol | 20 |
| Glutaraldehyde | 10 |
| Nano-titanium dioxide | 1 |
| Neopelex | 4 |
| Water | 65 |
After testing, the deodorant in the present embodiment can reach 97% to the removal rate of hydrogen sulfide, after continuously spraying three days,
Deodorizing effect can be kept 20 days.
Embodiment 3
A kind of deodorant, including the deodorant liquid A and deodorant liquid B, the deodorant liquid A that store respectively include following weight percent
The each component of ratio：
| Component | Weight percent (%) |
| Polyvinyl alcohol | 15 |
| Glutaraldehyde | 5 |
| Nano-titanium dioxide | 1 |
| Neopelex | 4 |
| Water | 75 |
The grain size of above-mentioned nano-titanium dioxide is：5-15nm, above-mentioned glutaraldehyde are senaside.
The preparation method of above-mentioned deodorant liquid A is：80 DEG C are heated the water to, polyvinyl alcohol is poured into and is stirred, is stirred to poly-
After vinyl alcohol dissolving, neopelex and nano-titanium dioxide is added, glutaraldehyde is added after being cooled to 30 DEG C, is formed
Sticky solution is cooled to room temperature, and standing is not stratified to be made deodorant liquid A.
The deodorant liquid B includes each component of following weight percent：
| Component | Weight percent (%) |
| Ferric trichloride | 5 |
| Dichloride copper | 1 |
| Concentrated hydrochloric acid | 1 |
| Water | 93 |
Above-mentioned hydrochloric acid is concentrated hydrochloric acid, a concentration of 35-38% of the concentrated hydrochloric acid.
The preparation method of above-mentioned deodorant liquid B is：Hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, dissolves
The deodorant liquid B of blue is made afterwards.
During specific use：Deodorant liquid A is diluted with water 5-10 times, after deodorant liquid B with deodorant liquid A according to diluting
Volume ratio is 1：1 is mixed, and the pH value of solution is that 3-4 is sprayed directly on rubbish heap after standing 1h with spraying apparatus after mixing
The surface of body, junk-heap body first carry out compacting or smooth before sprinkling.
Just there are apparent hydrogen sulfide, ammonia removal effect after spraying 3-5min on the day of, after continuous sprinkling 3-5 days, table
Face forms a kind of covering film, can continue 18-25 days effects.The hydrogen sulfide yield of junk-heap body is relatively small, removal rate
95% can be reached.
Embodiment 4
A kind of deodorant, including the deodorant liquid A and deodorant liquid B, the deodorant liquid A that store respectively include following weight percent
The each component of ratio：
| Component | Weight percent (%) |
| Polyvinyl alcohol | 30 |
| Glutaraldehyde | 15 |
| Nano-titanium dioxide | 1 |
| Neopelex | 4 |
| Water | 50 |
The grain size of above-mentioned nano-titanium dioxide is：5-15nm, above-mentioned glutaraldehyde are senaside.
The preparation method of above-mentioned deodorant liquid A is：90 DEG C are heated the water to, polyvinyl alcohol is poured into and is stirred, is stirred to poly-
After vinyl alcohol dissolving, neopelex and nano-titanium dioxide is added, glutaraldehyde is added after being cooled to 50 DEG C, is formed
Sticky solution is cooled to room temperature, and standing is not stratified to be made deodorant liquid A.
The deodorant liquid B includes each component of following weight percent：
| Component | Weight percent (%) |
| Ferric trichloride | 1 |
| Dichloride copper | 0.5 |
| Concentrated hydrochloric acid | 5 |
| Water | 93.5 |
Above-mentioned hydrochloric acid is concentrated hydrochloric acid, a concentration of 35-38% of the concentrated hydrochloric acid.
The preparation method of above-mentioned deodorant liquid B is：Hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, dissolves
The deodorant liquid B of blue is made afterwards.
During specific use：Deodorant liquid A is diluted with water 10-15 times, the bodies such as deodorant liquid A after adding and diluting
Long-pending deodorant liquid B, is mixed.
After mixing, the surface of dewatered excess sludge is sprayed directly on spraying apparatus, it can be by sludge table before sprinkling
Face progress is smooth, and effect is more preferable.Organic matter, rich in protein in sludge, the stink in placement process is apparent, needs
Increase the component of film forming.The same day can reach 90% to the removal rate of hydrogen sulfide after sprinkling, and the removal rate after three days reaches
95%, it can continue to play effect 10-15 days.
Embodiment 5
A kind of deodorant, including the deodorant liquid A and deodorant liquid B, the deodorant liquid A that store respectively include following weight percent
The each component of ratio：
| Component | Weight percent (%) |
| Polyvinyl alcohol | 5 |
| Glutaraldehyde | 1 |
| Nano-titanium dioxide | 1 |
| Neopelex | 1 |
| Water | 92 |
The grain size of above-mentioned nano-titanium dioxide is：5-15nm, above-mentioned glutaraldehyde are senaside.
The preparation method of above-mentioned deodorant liquid A is：90 DEG C are heated the water to, polyvinyl alcohol is poured into and is stirred, is stirred to poly-
After vinyl alcohol dissolving, neopelex and nano-titanium dioxide is added, glutaraldehyde is added after being cooled to 50 DEG C, is formed
Sticky solution is cooled to room temperature, and standing is not stratified to be made deodorant liquid A.
The deodorant liquid B includes each component of following weight percent：
| Component | Weight percent (%) |
| Ferric trichloride | 1 |
| Dichloride copper | 0.5 |
| Concentrated hydrochloric acid | 1 |
| Water | 97.5 |
Above-mentioned hydrochloric acid is concentrated hydrochloric acid, a concentration of 35-38% of the concentrated hydrochloric acid.
The preparation method of above-mentioned deodorant liquid B is：Hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, dissolves
The deodorant liquid B of blue is made afterwards.
Application method：The concentration of deodorant liquid A and B are all relatively low in above-mentioned solution, and use when need not dilute, directly
Isometric A and B are mixed, directly sprayed after sprinkling or standing 2h.
Film-forming components concentration is low in deodorant liquid, since without dilution, main deodorization factor concentration is relatively high, is suitble to
It is relatively high in odor unit, the smelly body deodorization of surfacing.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within made by modifications, equivalent substitutions and improvements etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (10)
1. a kind of deodorant, which is characterized in that including the deodorant liquid A stored respectively and deodorant liquid B,
The deodorant liquid A includes each component of following weight percent：
Polyvinyl alcohol 5-30%, glutaraldehyde 1-15%, nano-titanium dioxide 0.5-2%, neopelex 1-5% are remaining
Amount is water；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 1-10%, dichloride copper 0.5-4%, hydrochloric acid 1-5%, surplus is water.
2. a kind of deodorant according to claim 1, it is characterised in that：The deodorant liquid A includes following weight percent
Each component：
Polyvinyl alcohol 15-30%, glutaraldehyde 5-15%, nano-titanium dioxide 1-2%, neopelex 4-5%, surplus
For water；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 5-10%, dichloride copper 1-4%, hydrochloric acid 2-5%, surplus is water.
3. a kind of deodorant according to claim 1, it is characterised in that：The deodorant liquid A includes following weight percent
Each component：
Polyvinyl alcohol 20-30%, glutaraldehyde 10-15%, nano-titanium dioxide 1-2%, neopelex 4-5% are remaining
Amount is water；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 5-10%, dichloride copper 1-4%, hydrochloric acid 2-5%, surplus is water.
4. a kind of deodorant according to claim 1, it is characterised in that：The deodorant liquid A includes following weight percent
Each component：
Polyvinyl alcohol 20%, glutaraldehyde 7%, nano-titanium dioxide 1%, neopelex 4%, water 68%；
The deodorant liquid B includes each component of following weight percent：
Ferric trichloride 10%, dichloride copper 4%, hydrochloric acid 2%, water 84%.
5. a kind of deodorant according to any one of claims 1 to 4, it is characterised in that：The grain size of the nano-titanium dioxide
For：5-15nm.
6. a kind of deodorant according to any one of claims 1 to 4, it is characterised in that：The hydrochloric acid is concentrated hydrochloric acid, described dense
A concentration of 35-38% of hydrochloric acid, the glutaraldehyde are senaside.
7. a kind of preparation method of deodorant according to any one of claims 1 to 4, which is characterized in that the deodorant liquid A and
Deodorant liquid B is prepared respectively, and when use is mixed, and is included the following steps：
The preparation of deodorant liquid A：70-90 DEG C is heated the water to, polyvinyl alcohol is poured into and is stirred, is stirred to polyvinyl alcohol dissolving
Afterwards, neopelex and nano-titanium dioxide is added, adds glutaraldehyde after being cooled to 30-50 DEG C, is formed sticky
Solution is cooled to room temperature, and standing is not stratified to be made deodorant liquid A；
The preparation of deodorant liquid B：Hydrochloric acid is first added in water, adds ferric trichloride and copper chloride, removing for blue is made after dissolving
Smelly liquid B.
8. a kind of preparation method of deodorant according to claim 7, it is characterised in that：The preparation of the deodorant liquid A
80 DEG C are heated the water in journey, polyvinyl alcohol is poured into and is stirred, and after being stirred to polyvinyl alcohol dissolving, detergent alkylate sulphur is added
Sour sodium and nano-titanium dioxide add glutaraldehyde after being cooled to 40 DEG C, form sticky solution, are cooled to room temperature, stand
It is not stratified that deodorant liquid A is made.
9. a kind of application method of deodorant according to any one of claims 1 to 4, it is characterised in that：It is first that deodorant liquid A is dilute
0-15 times is released, is then added and is mixed with the deodorant liquid B of same volume after deodorant liquid A dilutions, it is straight with spraying apparatus after mixing
It connects sprinkling or the surface of smelly body will be sprayed at after mixed liquor standing 0.5-2h with spraying apparatus.
10. a kind of application method of deodorant according to claim 9, it is characterised in that：Deodorant liquid A is first diluted into 5-10
Times, it will first be sprayed at the surface of smelly body after mixed liquor standing 1h with spraying apparatus again.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810550673.2A CN108392982B (en) | 2018-05-31 | 2018-05-31 | Deodorant and preparation method and using method thereof |
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|---|---|---|---|
| CN201810550673.2A CN108392982B (en) | 2018-05-31 | 2018-05-31 | Deodorant and preparation method and using method thereof |
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| CN108392982B CN108392982B (en) | 2021-06-15 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109306217A (en) * | 2018-09-29 | 2019-02-05 | 西安市固体废弃物管理处 | A kind of preparation and the smelly method of control of house refuse bacteriostatic deodorizing functional membrane |
| CN111672300A (en) * | 2020-06-17 | 2020-09-18 | 南京先材环保科技有限公司 | Medicament for preventing and treating air pollutants and production process thereof |
| CN113003698A (en) * | 2021-03-05 | 2021-06-22 | 浙江理工大学 | Long-acting deodorant and preparation method thereof |
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| CN113003698A (en) * | 2021-03-05 | 2021-06-22 | 浙江理工大学 | Long-acting deodorant and preparation method thereof |
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