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How To Neutralize Hydrogen Sulfide
The method of removing hydrogen sulfide
Hydrogen sulfide is smelly and poisonous, and it often disturbs people in various situations. If you want to get rid of it, you should follow various methods.
First, you can use lye to neutralize. For alkalis, when encountering hydrogen sulfide, it will react. If the solution of sodium hydroxide, hydrogen sulfide enters it and converts into sodium hydrosulfide and water, it should be as follows: $H_ {2} S + NaOH\ longrightarrow NaHS + H_ {2} O $. If the amount of alkali is sufficient, sodium hydrosulfide will be combined with alkali, and raw sodium sulfide will be combined with water, that is, $NaHS + NaOH\ longrightarrow Na_ {2} S + H_ {2} O $. It is necessary to pay attention to the concentration and dosage of the alkali solution, depending on the amount of hydrogen sulfide.
Second, remove it by oxidation. If a strong oxidizing agent is used, such as hydrogen peroxide. Hydrogen sulfide encounters hydrogen oxide, sulfur is oxidized and precipitated, and water is a by-product. The reaction formula is: $H_ {2} S + H_ {2} O_ {2}\ longrightarrow S\ downarrow + 2H_ {2} O $. The method can be used in places with low hydrogen sulfide content, and the use of hydrogen peroxide should also check its concentration and stability to avoid accidents.
Third, the adsorption method can also be used. Activated carbon and the like, with strong adsorption, hydrogen sulfide can be attached to its surface. However, activated carbon adsorption has its limit, if it is full, it needs to be replaced or regenerated. In gas treatment, devices filled with activated carbon are often used to make gas containing hydrogen sulfide pass through it and achieve the effect of purification.
Or use the microbial method. Specific microorganisms can convert hydrogen sulfide into hydrogen sulfide in suitable environments. Such as sulfur oxidizing bacteria, which can use hydrogen sulfide as an energy source and sulfur source, and through metabolism, convert hydrogen sulfide into harmless things such as sulfate roots. This method requires good control of the conditions for microbial growth, such as temperature, pH, nutrients, etc.
All these methods have advantages and disadvantages. When removing hydrogen sulfide, consider the specific situation and choose the most appropriate method to achieve the purpose of efficiency, safety and economy.
Hydrogen sulfide is smelly and poisonous, and it often disturbs people in various situations. If you want to get rid of it, you should follow various methods.
First, you can use lye to neutralize. For alkalis, when encountering hydrogen sulfide, it will react. If the solution of sodium hydroxide, hydrogen sulfide enters it and converts into sodium hydrosulfide and water, it should be as follows: $H_ {2} S + NaOH\ longrightarrow NaHS + H_ {2} O $. If the amount of alkali is sufficient, sodium hydrosulfide will be combined with alkali, and raw sodium sulfide will be combined with water, that is, $NaHS + NaOH\ longrightarrow Na_ {2} S + H_ {2} O $. It is necessary to pay attention to the concentration and dosage of the alkali solution, depending on the amount of hydrogen sulfide.
Second, remove it by oxidation. If a strong oxidizing agent is used, such as hydrogen peroxide. Hydrogen sulfide encounters hydrogen oxide, sulfur is oxidized and precipitated, and water is a by-product. The reaction formula is: $H_ {2} S + H_ {2} O_ {2}\ longrightarrow S\ downarrow + 2H_ {2} O $. The method can be used in places with low hydrogen sulfide content, and the use of hydrogen peroxide should also check its concentration and stability to avoid accidents.
Third, the adsorption method can also be used. Activated carbon and the like, with strong adsorption, hydrogen sulfide can be attached to its surface. However, activated carbon adsorption has its limit, if it is full, it needs to be replaced or regenerated. In gas treatment, devices filled with activated carbon are often used to make gas containing hydrogen sulfide pass through it and achieve the effect of purification.
Or use the microbial method. Specific microorganisms can convert hydrogen sulfide into hydrogen sulfide in suitable environments. Such as sulfur oxidizing bacteria, which can use hydrogen sulfide as an energy source and sulfur source, and through metabolism, convert hydrogen sulfide into harmless things such as sulfate roots. This method requires good control of the conditions for microbial growth, such as temperature, pH, nutrients, etc.
All these methods have advantages and disadvantages. When removing hydrogen sulfide, consider the specific situation and choose the most appropriate method to achieve the purpose of efficiency, safety and economy.
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