Method of detecting removal rate of deodorant on hydrogen sulfide

A hydrogen sulfide and deodorant technology, which is applied in the measurement of color/spectral characteristics, etc., can solve the problem that the deodorant cannot accurately detect the hydrogen sulfide removal rate and the hydrogen sulfide removal rate. There is no effective detection method and detection method. It can shorten the testing time and testing procedures, achieve good deodorization effect, and improve quality.

Active Publication Date: 2016-03-23
HUNAN PUTAIER ENVIRONMENTAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Various deodorants emerge in endlessly, and the deodorizing effect of them has yet to be studied. Therefore, how to detect the deodorizing ability of the deodorant becomes the key to the deodorizing effect of the deodorant. Two of the more critical detection indicators are the ammonia gas removal rate. and hydrogen sulfide removal rate, but there is no effective detection method for hydrogen sulfide removal rate at present. Most of the detection methods are to spray the deodorant in the smelly garbage, and measure the sulfide concentration in the air before and after spraying. The change of hydrogen content is used to detect the hydrogen sulfide removal ability of the deodorant. The detection period is long, and the detected data is not very accurate. It is greatly affected by external factors, and the removal of hydrogen sulfide by the deodorant cannot be accurately detected. rate, and the detection steps are relatively cumbersome

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for detecting deodorant to hydrogen sulfide removal rate, it comprises the steps:

[0034] ①. Reagent preparation, the preparation steps of hydrogen sulfide saturated solution are: weigh 0.355g of sodium sulfide crystals, dissolve in freshly boiled and cooled water, and set the volume to 500mL to obtain 100mg / L hydrogen sulfide solution, which is hydrogen sulfide saturated solution. solution;

[0035] The preparation steps of hydrogen sulfide absorption liquid are: weigh 2.15g cadmium sulfate (3CdSO 4 ·8H 2 (2) and 0.15g sodium hydroxide and 5g polyvinyl ammonium phosphate were dissolved in water respectively, then the three solutions were mixed, shaken vigorously until completely dissolved, then fixed to 500mL with water, and stored in a refrigerator;

[0036] The configuration steps of the mixed chromogenic solution are: 1) Take 50mL of concentrated sulfuric acid, slowly add it to 30mL of water, and weigh 12g of N,N-dimethyl-p-phenylenediamine hydrochloride...

Embodiment 2

[0042] A method for detecting deodorant to hydrogen sulfide removal rate, it comprises the steps:

[0043] ①. Reagent preparation, the preparation steps of hydrogen sulfide saturated solution are: weigh 0.355g of sodium sulfide crystals, dissolve in freshly boiled and cooled water, and set the volume to 500mL to obtain 100mg / L hydrogen sulfide solution, which is hydrogen sulfide saturated solution. solution;

[0044] The preparation steps of hydrogen sulfide absorption liquid are: weigh 2.15g cadmium sulfate (3CdSO 4 ·8H 2 (2) and 0.15g sodium hydroxide and 5g polyvinyl ammonium phosphate were dissolved in water respectively, then the three solutions were mixed, shaken vigorously until completely dissolved, then fixed to 500mL with water, and stored in a refrigerator;

[0045] The configuration steps of the mixed chromogenic solution are: 1) Take 50mL of concentrated sulfuric acid, slowly add it to 30mL of water, and weigh 12g of N,N-dimethyl-p-phenylenediamine hydrochloride...

Embodiment 3

[0051] A method for detecting deodorant to hydrogen sulfide removal rate, it comprises the steps:

[0052] ①. Reagent preparation, the preparation steps of hydrogen sulfide saturated solution are: weigh 0.355g of sodium sulfide crystals, dissolve in freshly boiled and cooled water, and set the volume to 500mL to obtain 100mg / L hydrogen sulfide solution, which is hydrogen sulfide saturated solution. solution;

[0053] The preparation steps of hydrogen sulfide absorption liquid are: weigh 2.15g cadmium sulfate (3CdSO 4 ·8H 2 (2) and 0.15g sodium hydroxide and 5g polyvinyl ammonium phosphate were dissolved in water respectively, then the three solutions were mixed, shaken vigorously until completely dissolved, then fixed to 500mL with water, and stored in a refrigerator;

[0054] The configuration steps of the mixed chromogenic solution are: 1) Take 50mL of concentrated sulfuric acid, slowly add it to 30mL of water, and weigh 12g of N,N-dimethyl-p-phenylenediamine hydrochloride...

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PUM

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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 [0001] The invention relates to the application field of deodorants, in particular to a method for detecting the removal rate of hydrogen sulfide by deodorants. Background technique [0002] The annual production of municipal solid waste in my country is about 140 million tons, except for a small part of incineration, composting or recycling, more than 80% are transported to landfills for landfill treatment. In landfills, organic domestic waste is decomposed by microorganisms to produce a large amount of NH 3 、H 2 S and other malodorous gases have caused great pollution to the landfill and the surrounding environment, affecting the health of sanitation workers and surrounding residents. The odor pollution generated by garbage has become a major social nuisance. Therefore, it has become an important part of the comprehensive management of waste to effectively deal with the odor pollution generated by landfill waste, reduce its damage to the surrounding ecolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
CPCG01N21/31
Inventor 胡峻吴小国刘美玲
Owner HUNAN PUTAIER ENVIRONMENTAL CO LTD
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