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http://dx.doi.org/10.7316/KHNES.2013.24.6.518

Desulfurization of Biogas Using Micro Bubble in a Biogas Plant  

Tak, Bong-Yul (DHM Co. Ltd.)
Tak, Bong-Sik (DHM Co. Ltd.)
Kim, Chan-Gyu (DHM Co. Ltd.)
Min, Gil-Ho (DHM Co. Ltd.)
Jang, Choon-Man (Environmental Engineering Research Div., Korea Institute of Construction Technology)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.24, no.6, 2013 , pp. 518-523 More about this Journal
Abstract
This paper describes the reduction of a hydrogen sulfide ($H_2S$) generated from a biogas plant. Micro bubble system is adopted to supply air into the water in the reaction chamber, which can increase the contact area of the supplied air to the reserving water. Two stage reaction chambers having two reaction rooms are designed and manufactured to enhance the reduction rate of a hydrogen sulfide. Sodium hydroxide (NaOH) is also considered to get rid of a hydrogen sulfide. Air volume rate to the water in a reaction chamber is maintained between 0.5 and $1.0m^3/min$. Throughout experimental measurement of the concentration of a hydrogen sulfide by changing the volume of supplied air into the water, reduction rate of a hydrogen sulfide increases as air volume increases. Adding sodium hydroxide to the water with the air supply can reduce effectively a hydrogen sulfide up to 99.5% from biogas. It is noted that a hydrogen sulfide generated by a biogas plant can reduce by supplying micro bubble air and sodium hydroxide effectively.
Keywords
Disulfurization; Micro bubble; Biogas plant; $H_2S$; NaOH;
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