CN105424630A - Method of detecting removal rate of deodorant on hydrogen sulfide - Google Patents
Method of detecting removal rate of deodorant on hydrogen sulfide Download PDFInfo
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Abstract
The invention relates to the field of application of deodorants and particularly provides a method of detecting removal rate of a deodorant on hydrogen sulfide. The method includes the steps of: preparing a reagent, carrying out a test, testing OD value and performing calculation. The invention aims to provide the method of detecting the removal rate of the deodorant on hydrogen sulfide, by means of the method, the removal rate of the deodorant on the hydrogen sulfide can be quickly and accurately detected in laboratories. The method improves a conventional method that the deodorant is sprayed onto stinky garbage and then the change of the contents of the hydrogen sulfide in air between before spraying and after spraying the deodorant onto the stinky garbage is determined to detect the hydrogen sulfide removal capability of the deodorant. The method greatly reduces detection time and detection process, is simple and convenient, is free of influence of environment and is more accurate in detection result when being compared with a conventional method. The method can be used as a quality inspection method of the deodorants during production process of the deodorants, thereby ensuring the quality of the deodorants.
Description
Technical field
The present invention relates to deodorant application, be specially and a kind ofly detect the method for deodorant to hydrogen sulfide removal rate.
Background technology
China's domestic waste year output is about 1.4 hundred million tons, and except small part burning, compost or recycling, more than 80% is transported to refuse landfill carries out landfill disposal.In refuse landfill, organic domestic waste is decomposed by the microorganisms and produces a large amount of NH
3, H
2the foul gas such as S, cause great pollution to the environment of refuse landfill and periphery, affect the healthy of sanitationman and nearby residents, and the odor pollution that rubbish produces has become great society public hazards.So the odor pollution that effective disposal of refuse landfill yard rubbish produces, reduce its broken ring to periphery ecologic environment, the protection people's is healthy, has become an important content of garbage management.
At present, garbage deodorant mainly contains chemical deodorizing agent, plant deodorant and microbial deodorant.Various deodorant emerges in an endless stream, deodorizing effect wherein need to investigate, thus, the deodorizing capability how detecting deodorant becomes the key of deodorant deodorizing effect, wherein two more crucial Testing index are ammonia removal rate and hydrogen sulfide removal rate, but at present for hydrogen sulfide removal rate not effective detection method, most detection method is all be sprayed on by deodorant in smelly rubbish, the vulcanisation Hydrogen Energy power that front and after spraying in air hydrogen sulfide content change detects deodorant is sprayed by measuring, such time cycle detected is long, the data detected are not very accurate, the impact being subject to extraneous factor is larger, can accurately not detect the clearance of deodorant to sulfuretted hydrogen, and detecting step is more loaded down with trivial details.
Summary of the invention
The object of this invention is to provide and a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, the clearance of deodorant to sulfuretted hydrogen can be detected fast and accurately in laboratory, change and traditional deodorant is sprayed in smelly rubbish, the mode that front and after spraying in air hydrogen sulfide content change detects the vulcanisation Hydrogen Energy power of deodorant is sprayed by measuring, substantially reduce detection time and trace routine, detection method is easy, and not by the impact of environment, testing result is more accurate relative to classic method.The means of deodorant quality inspection can be used as in the production run of deodorant, ensure the quality of the deodorant produced.
In order to realize above object, the technical solution used in the present invention is: a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, and it comprises the steps:
1., preparation of reagents, prepare sulfuretted hydrogen saturated solution, hydrogen sulfide absorption liquid, ammonium dibasic phosphate solution and mixing nitrite ion;
2., process of the test, first get two cover 2L beakers and 50mL beaker, and be labeled as experimental group and control group respectively, draw 18mL and dilute the deodorant of 30 times in the 2L beaker of experimental group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times again, good seal in 10S; Draw 18mL distilled water in the 2L beaker of control group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, good seal in 10S; The 2L beaker of experimental group and control group is all placed in 25-40 DEG C of incubator lucifuge cultivation 22-26h;
3., OD value is tested, by step 2. in experimental group and 50mL beaker in control group take out, then the solution in experimental group and control group beaker is poured in the color comparison tube of 25mL respectively, then in color comparison tube, 3mL mixing nitrite ion is added along tube wall, cover lid in 3S, shake up gently, 3 ammonium dibasic phosphate solutions are added place 30min at the temperature of 16-25 DEG C after, and make it mix, be then survey OD value in the light wave of 665nm in wavelength by the solution 10mm cuvette in test group and control group color comparison tube;
4., calculate, experimental group OD value step 3. measured and control group OD value substitute into following formula
in, and calculate deodorant to hydrogen sulfide removal rate.
Preferably, the preparation steps of sulfuretted hydrogen saturated solution is: take 0.355g sodium sulfide crystal, is dissolved in the water newly boiling rear cooling, is settled to 500mL, obtains the hydrogen sulfide solution of 100mg/L, is sulfuretted hydrogen saturated solution.
Preferably, the preparation steps of hydrogen sulfide absorption liquid is: weigh 2.15g cadmium sulfate (3CdSO
48H
2o) and 0.15g NaOH and 5g ammonium alcohol polyvinyl phosphate soluble in water respectively, then mixed mutually by three kinds of solution, strong jolting to dissolving completely, then is settled to 500mL with water, is positioned in refrigerator and preserves.
Preferably, hydrogen sulfide absorption liquid in use, measures after all needing strong jolting evenly again, and the hydrogen sulfide absorption liquid preserved after one week should be abandoned.
Preferably, the configuration step of mixing nitrite ion is, 1) and taken amount gets the 50mL concentrated sulphuric acid, and slowly add in 30mL water, after cooling, weigh 12gN, N-dimethyl-p-phenylenediamine hydrochloride (C
8h
12n
22HCl) in vitriolization solution, obtain methylene blue storing solution, and be kept in refrigerator, measure 2.5mL storing solution, be settled to 100mL with 1+1 sulfuric acid solution, obtain methylene blue and use liquid; 2) 50g ferric trichloride (FeCl is weighed
36H
2o) soluble in water, be settled to 50mL, then filter and obtain liquor ferri trichloridi; Use the ratio mixing of liquid proportioning 0.04mL liquor ferri trichloridi in 1mL methylene blue, obtain mixing nitrite ion.
Preferably, the holding time of described methylene blue storing solution is 1 year, and methylene blue use liquid should be now with the current; Described mixing nitrite ion should be now with the current, and can not occur that sediment generates.
Preferably, the preparation steps of ammonium dihydrogen phosphate is: weigh 20g diammonium hydrogen phosphate [(NH
4)
2hPO
4] soluble in water, be settled to 50mL, obtain ammonium dihydrogen phosphate.
Preferably, step is 2. in process of the test, and the sealing of experimental group and control group first adopts double-deck preservative film to seal, then overlaps a polybag, and tightens with bungee.
Preferably, step is 2. in process of the test, and the temperature of incubator is 30 DEG C, and the time of cultivation is 24h.
Preferably, 3. step tests in OD value, and color comparison tube used is all wrapped up with masking foil.
Preferably, 3. step tests in the step of OD value, after pouring the solution in beaker into color comparison tube, with 3mL water washing beaker, is then poured in the lump in color comparison tube.
Principle is explained: utilize the sulfuretted hydrogen in hydrogen sulfide absorption liquid absorption air, the solution obtained with mix nitrite ion and react and generate blue methylene blue solution, the absorbance of this blue solution is directly proportional to the content of sulfuretted hydrogen, be the wavelength place experiments of measuring group of 665nm and the OD value of control group at light wave, and then calculate hydrogen sulfide removal rate.
Beneficial effect of the present invention is:
1, method of the present invention can detect the clearance of deodorant to sulfuretted hydrogen fast and accurately in laboratory, change and traditional deodorant is sprayed in smelly rubbish, the mode that front and after spraying in air hydrogen sulfide content change detects the vulcanisation Hydrogen Energy power of deodorant is sprayed by measuring, substantially reduce detection time and trace routine, detection method is easy, and not by the impact of environment, testing result is more accurate relative to classic method.
2, method of the present invention can change the present situation to the quality inspection blank of deodorizing effect this part in existing deodorant production run, can apply in the quality inspection step in deodorant production run, and then the quality of the deodorant produced can be improved, ensure that deodorant all has good deodorizing effect.
3, the encapsulation process in process of the test, and the selection of cultivation temperature incubation time, can guarantee the removal effect that deodorant can reach best, can guarantee the accuracy of detection method of the present invention simultaneously.
4, the selection of 2L beaker, is convenient to deodorant and fully contacts with sulfuretted hydrogen, can absorb degraded sulfuretted hydrogen more completely; Being inserted in the small beaker that absorbing liquid is housed is that the small beaker of 50mL is not high because of cup simultaneously, is convenient to the sulfuretted hydrogen flown away in whole 2L beaker space all to absorb in order to absorb the sulfuretted hydrogen that can not be deodorant agent degraded, guarantees the accuracy detected further.
5, lucifuge is cultivated and the process of colorimetric pipe box masking foil, being all to prevent the cadmium sulfide of generation oxidized, ensureing the degree of accuracy detected.
6, when hydrogen sulfide absorption liquid uses, jolting process and preservation abandoning after a week, be all to ensure the absorption efficiency of hydrogen sulfide absorption liquid to sulfuretted hydrogen, prevents from affecting the degree of accuracy detected.
7, mix requirement during situ configuration and the preparation of nitrite ion, are all the degree of accuracy in order to ensure to mix nitrite ion chromogenic reaction, and then ensure the accuracy of detection.
8, after pouring the solution in 50mL beaker into chromoscope, pour chromoscope in the lump with after 3mL water washing beaker, can guarantee not containing residual cadmium sulfide in beaker like this, and then ensure the accuracy of detection.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, elaborate below to the specific embodiment of the present invention.Set forth a lot of detail in the following description so that fully understand the present invention.But the present invention can implement to be much different from other modes described here, those skilled in the art can when without prejudice to doing similar improvement when intension of the present invention, therefore the present invention is by the restriction of following public concrete enforcement.
It is below specific embodiment
Embodiment 1:
Detect the method for deodorant to hydrogen sulfide removal rate, it comprises the steps:
1., preparation of reagents, the preparation steps of sulfuretted hydrogen saturated solution is: take 0.355g sodium sulfide crystal, is dissolved in the water newly boiling rear cooling, is settled to 500mL, obtains the hydrogen sulfide solution of 100mg/L, is sulfuretted hydrogen saturated solution;
The preparation steps of hydrogen sulfide absorption liquid is: weigh 2.15g cadmium sulfate (3CdSO
48H
2o) and 0.15g NaOH and 5g ammonium alcohol polyvinyl phosphate soluble in water respectively, then mixed mutually by three kinds of solution, strong jolting to dissolving completely, then is settled to 500mL with water, is positioned in refrigerator and preserves;
The configuration step of mixing nitrite ion is: 1) taken amount gets the 50mL concentrated sulphuric acid, slowly adds in 30mL water, weighs 12gN after cooling, N-dimethyl-p-phenylenediamine hydrochloride (C
8h
12n
22HCl) in vitriolization solution, obtain methylene blue storing solution, and be kept in refrigerator, measure 2.5mL storing solution, be settled to 100mL with 1+1 sulfuric acid solution, obtain methylene blue and use liquid; 2) 50g ferric trichloride (FeCl is weighed
36H
2o) soluble in water, be settled to 50mL, then filter and obtain liquor ferri trichloridi; Use the ratio mixing of liquid proportioning 0.04mL liquor ferri trichloridi in 1mL methylene blue, obtain mixing nitrite ion;
The preparation steps of ammonium dihydrogen phosphate is: weigh 20g diammonium hydrogen phosphate [(NH
4)
2hPO
4] soluble in water, be settled to 50mL, obtain ammonium dihydrogen phosphate;
2., process of the test, first get two cover 2L beakers and 50mL beaker, and be labeled as experimental group and control group respectively, draw 18mL and dilute the deodorant of 30 times in the 2L beaker of experimental group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, seal with double-deck preservative film in 10S, overlap a polybag again, and tighten with bungee; Draw 18mL distilled water in the 2L beaker of control group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, seal with double-deck preservative film in 10S, overlap a polybag again, and tighten with bungee; The 2L beaker of experimental group and control group is all placed in 25 DEG C of incubator lucifuges cultivation 26h;
3., test OD value, by step 2. in experimental group and 50mL beaker in control group take out, then the solution in experimental group and control group beaker is poured into respectively in the color comparison tube with masking foil parcel of 25mL, and with 3mL water washing beaker, be poured in the lump afterwards in color comparison tube, then in color comparison tube, 3mL mixing nitrite ion is added along tube wall, cover lid in 3S, shake up gently, 3 ammonium dibasic phosphate solutions are added place 30min at the temperature of 16-25 DEG C after, and make it mix, then be survey OD value in the light wave of 665nm in wavelength by the solution 10mm cuvette in test group and control group color comparison tube,
4., calculate, experimental group OD value step 3. measured and control group OD value substitute into following formula
in, and calculate deodorant to hydrogen sulfide removal rate.
Embodiment 2:
Detect the method for deodorant to hydrogen sulfide removal rate, it comprises the steps:
1., preparation of reagents, the preparation steps of sulfuretted hydrogen saturated solution is: take 0.355g sodium sulfide crystal, is dissolved in the water newly boiling rear cooling, is settled to 500mL, obtains the hydrogen sulfide solution of 100mg/L, is sulfuretted hydrogen saturated solution;
The preparation steps of hydrogen sulfide absorption liquid is: weigh 2.15g cadmium sulfate (3CdSO
48H
2o) and 0.15g NaOH and 5g ammonium alcohol polyvinyl phosphate soluble in water respectively, then mixed mutually by three kinds of solution, strong jolting to dissolving completely, then is settled to 500mL with water, is positioned in refrigerator and preserves;
The configuration step of mixing nitrite ion is: 1) taken amount gets the 50mL concentrated sulphuric acid, slowly adds in 30mL water, weighs 12gN after cooling, N-dimethyl-p-phenylenediamine hydrochloride (C
8h
12n
22HCl) in vitriolization solution, obtain methylene blue storing solution, and be kept in refrigerator, measure 2.5mL storing solution, be settled to 100mL with 1+1 sulfuric acid solution, obtain methylene blue and use liquid; 2) 50g ferric trichloride (FeCl is weighed
36H
2o) soluble in water, be settled to 50mL, then filter and obtain liquor ferri trichloridi; Use the ratio mixing of liquid proportioning 0.04mL liquor ferri trichloridi in 1mL methylene blue, obtain mixing nitrite ion;
The preparation steps of ammonium dihydrogen phosphate is: weigh 20g diammonium hydrogen phosphate [(NH
4)
2hPO
4] soluble in water, be settled to 50mL, obtain ammonium dihydrogen phosphate;
2., process of the test, first get two cover 2L beakers and 50mL beaker, and be labeled as experimental group and control group respectively, draw 18mL and dilute the deodorant of 30 times in the 2L beaker of experimental group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, seal with double-deck preservative film in 10S, overlap a polybag again, and tighten with bungee; Draw 18mL distilled water in the 2L beaker of control group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, seal with double-deck preservative film in 10S, overlap a polybag again, and tighten with bungee; The 2L beaker of experimental group and control group is all placed in 40 DEG C of incubator lucifuges cultivation 22h;
3., test OD value, by step 2. in experimental group and 50mL beaker in control group take out, then the solution in experimental group and control group beaker is poured into respectively in the color comparison tube with masking foil parcel of 25mL, and with 3mL water washing beaker, be poured in the lump afterwards in color comparison tube, then in color comparison tube, 3mL mixing nitrite ion is added along tube wall, cover lid in 3S, shake up gently, 3 ammonium dibasic phosphate solutions are added place 30min at the temperature of 16-25 DEG C after, and make it mix, then be survey OD value in the light wave of 665nm in wavelength by the solution 10mm cuvette in test group and control group color comparison tube,
4., calculate, experimental group OD value step 3. measured and control group OD value substitute into following formula
in, and calculate deodorant to hydrogen sulfide removal rate.
Embodiment 3:
Detect the method for deodorant to hydrogen sulfide removal rate, it comprises the steps:
1., preparation of reagents, the preparation steps of sulfuretted hydrogen saturated solution is: take 0.355g sodium sulfide crystal, is dissolved in the water newly boiling rear cooling, is settled to 500mL, obtains the hydrogen sulfide solution of 100mg/L, is sulfuretted hydrogen saturated solution;
The preparation steps of hydrogen sulfide absorption liquid is: weigh 2.15g cadmium sulfate (3CdSO
48H
2o) and 0.15g NaOH and 5g ammonium alcohol polyvinyl phosphate soluble in water respectively, then mixed mutually by three kinds of solution, strong jolting to dissolving completely, then is settled to 500mL with water, is positioned in refrigerator and preserves;
The configuration step of mixing nitrite ion is: 1) taken amount gets the 50mL concentrated sulphuric acid, slowly adds in 30mL water, weighs 12gN after cooling, N-dimethyl-p-phenylenediamine hydrochloride (C
8h
12n
22HCl) in vitriolization solution, obtain methylene blue storing solution, and be kept in refrigerator, measure 2.5mL storing solution, be settled to 100mL with 1+1 sulfuric acid solution, obtain methylene blue and use liquid; 2) 50g ferric trichloride (FeCl is weighed
36H
2o) soluble in water, be settled to 50mL, then filter and obtain liquor ferri trichloridi; Use the ratio mixing of liquid proportioning 0.04mL liquor ferri trichloridi in 1mL methylene blue, obtain mixing nitrite ion;
The preparation steps of ammonium dihydrogen phosphate is: weigh 20g diammonium hydrogen phosphate [(NH
4)
2hPO
4] soluble in water, be settled to 50mL, obtain ammonium dihydrogen phosphate;
2., process of the test, first get two cover 2L beakers and 50mL beaker, and be labeled as experimental group and control group respectively, draw 18mL and dilute the deodorant of 30 times in the 2L beaker of experimental group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, seal with double-deck preservative film in 10S, overlap a polybag again, and tighten with bungee; Draw 18mL distilled water in the 2L beaker of control group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, seal with double-deck preservative film in 10S, overlap a polybag again, and tighten with bungee; The 2L beaker of experimental group and control group is all placed in 30 DEG C of incubator lucifuges cultivation 24h;
3., test OD value, by step 2. in experimental group and 50mL beaker in control group take out, then the solution in experimental group and control group beaker is poured into respectively in the color comparison tube with masking foil parcel of 25mL, and with 3mL water washing beaker, be poured in the lump afterwards in color comparison tube, then in color comparison tube, 3mL mixing nitrite ion is added along tube wall, cover lid in 3S, shake up gently, 3 ammonium dibasic phosphate solutions are added place 30min at the temperature of 16-25 DEG C after, and make it mix, then be survey OD value in the light wave of 665nm in wavelength by the solution 10mm cuvette in test group and control group color comparison tube,
4., calculate, experimental group OD value step 3. measured and control group OD value substitute into following formula
in, and calculate deodorant to hydrogen sulfide removal rate.
Checking, just microbial deodorant, compound deodorizer, plant deodorant detect by the detection method of embodiment 1, embodiment 2 and embodiment 3 respectively, the testing result drawn is: microbial deodorant is 86.5% to hydrogen sulfide removal rate 85.3%, compound deodorizer to hydrogen sulfide removal rate, and plant deodorant is 83.5% to hydrogen sulfide removal rate; The testing result of classic method is adopted to be: microbial deodorant is 85.7% to hydrogen sulfide removal rate 84.8%, compound deodorizer to hydrogen sulfide removal rate, and plant deodorant is 82.8% to hydrogen sulfide removal rate.Can be learnt by the above results, the result of detection method of the present invention and the testing result of classic method basically identical, and its detect result higher relative to traditional technique in measuring accuracy, therefore Detection results is more accurate, can promote practicality.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above example just understands method of the present invention and core concept thereof for helping.The above is only the preferred embodiment of the present invention, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the premise without departing from the principles of the invention, some improvement, retouching or change can also be made, also above-mentioned technical characteristic can be combined by rights; These improve retouching, change or combination, or the design of invention and technical scheme are directly applied to other occasion without improving, and all should be considered as protection scope of the present invention.
Claims (10)
1. detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, it comprises the steps:
1., preparation of reagents, prepare sulfuretted hydrogen saturated solution, hydrogen sulfide absorption liquid, ammonium dibasic phosphate solution and mixing nitrite ion;
2., process of the test, first get two cover 2L beakers and 50mL beaker, and be labeled as experimental group and control group respectively, draw 18mL and dilute the deodorant of 30 times in the 2L beaker of experimental group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times again, good seal in 10S; Draw 18mL distilled water in the 2L beaker of control group, and put into the 50mL small beaker that 20mL hydrogen sulfide absorption liquid is housed wherein, then add the sulfuretted hydrogen saturated solution that 2mL dilutes 4 times, good seal in 10S; The 2L beaker of experimental group and control group is all placed in 25-40 DEG C of incubator lucifuge cultivation 22-26h;
3., OD value is tested, by step 2. in experimental group and 50mL beaker in control group take out, then the solution in experimental group and control group beaker is poured in the color comparison tube of 25mL respectively, then in color comparison tube, 3mL mixing nitrite ion is added along tube wall, cover lid in 3S, shake up gently, 3 ammonium dibasic phosphate solutions are added place 30min at the temperature of 16-25 DEG C after, and make it mix, be then survey OD value in the light wave of 665nm in wavelength by the solution 10mm cuvette in test group and control group color comparison tube;
4., calculate, experimental group OD value step 3. measured and control group OD value substitute into following formula
in, and calculate deodorant to hydrogen sulfide removal rate.
2. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, the preparation steps of sulfuretted hydrogen saturated solution is: take 0.355g sodium sulfide crystal, be dissolved in the water newly boiling rear cooling, be settled to 500mL, obtain the hydrogen sulfide solution of 100mg/L, be sulfuretted hydrogen saturated solution.
3. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, the preparation steps of hydrogen sulfide absorption liquid is: weigh 2.15g cadmium sulfate (3CdSO
48H
2o) and 0.15g NaOH and 5g ammonium alcohol polyvinyl phosphate soluble in water respectively, then mixed mutually by three kinds of solution, strong jolting to dissolving completely, then is settled to 500mL with water, is positioned in refrigerator and preserves.
4. according to claim 3ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, hydrogen sulfide absorption liquid in use, measures after all needing strong jolting evenly again, and the hydrogen sulfide absorption liquid preserved after one week should be abandoned.
5. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, the configuration step of mixing nitrite ion is: 1) taken amount gets the 50mL concentrated sulphuric acid, slowly adds in 30mL water, 12gN is weighed, N-dimethyl-p-phenylenediamine hydrochloride (C after cooling
8h
12n
22HCl) in vitriolization solution, obtain methylene blue storing solution, and be kept in refrigerator, measure 2.5mL storing solution, be settled to 100mL with 1+1 sulfuric acid solution, obtain methylene blue and use liquid; 2) 50g ferric trichloride (FeCl is weighed
36H
2o) soluble in water, be settled to 50mL, then filter and obtain liquor ferri trichloridi; Use the ratio mixing of liquid proportioning 0.04mL liquor ferri trichloridi in 1mL methylene blue, obtain mixing nitrite ion.
6. according to claim 5ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, the holding time of described methylene blue storing solution is 1 year, and methylene blue uses liquid should be now with the current; Described mixing nitrite ion should be now with the current, and can not occur that sediment generates.
7. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, the preparation steps of ammonium dihydrogen phosphate is: weigh 20g diammonium hydrogen phosphate [(NH
4)
2hPO
4] soluble in water, be settled to 50mL, obtain ammonium dihydrogen phosphate.
8. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, step is 2. in process of the test, and the sealing of experimental group and control group first adopts double-deck preservative film to seal, then overlaps a polybag, and tightens with bungee.
9. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, step is 2. in process of the test, and the temperature of incubator is 30 DEG C, and the time of cultivation is 24h.
10. according to claim 1ly a kind ofly detect the method for deodorant to hydrogen sulfide removal rate, it is characterized in that, 3. step tests in OD value, and color comparison tube used is all wrapped up with masking foil.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109470817A (en) * | 2017-09-08 | 2019-03-15 | 金红叶纸业集团有限公司 | A kind of device and method for assessing deodorizing effect |
| CN111189966A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Method for evaluating performance of hydrogen sulfide scavenger in open space |
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| CN111189966A (en) * | 2018-11-14 | 2020-05-22 | 中国石油化工股份有限公司 | Method for evaluating performance of hydrogen sulfide scavenger in open space |
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| CN105424630B (en) | 2018-09-18 |
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