title: Hydrogen sulfide removal from livestock biogas by a farm-scale bio-filter desulfurization system.
abstract: A farm-scale biogas desulfurization system was designed and tested for H2S removal efficiency from livestock biogas. This work assesses the H2S removal efficiency of a novel farm-scale biogas bio-desulfurization system (BBS) operated for 350 days on a 1,000-head pig farm. Experimental data demonstrated that suitable humidity and temperature can help sulfur-oxidizing bacteria to form active bio-films on the bio-carriers. The daily average removal rate increased to 879.16 from 337.75 g-H2S/d with an average inlet H2S concentration of 4,691 ± 1,532 mg/m(3) in biogas. Thus, the overall (0-350 days) average H2S removal efficiency exceeded 93%. The proposed BBS overcomes limitations of H2S in biogas when utilizing pig farm biogas for power generation and other applications.
authors.affiliation: Department of Animal Science and Technology, National Taiwan University, Taipei, Chinese Taiwan. jjsu@ntu.edu.tw
authors.forename: J-J
authors.initials: JJ
authors.lastname: Su
authors.forename: Y-C
authors.initials: YC
authors.lastname: Chang
authors.forename: Y-J
authors.initials: YJ
authors.lastname: Chen
authors.forename: K-C
authors.initials: KC
authors.lastname: Chang
authors.forename: S-Y
authors.initials: SY
authors.lastname: Lee
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D018441:Biofilms; D056804:Biofuels; D019149:Bioreactors; D006813:Humidity; D006862:Hydrogen Sulfide / Q000302:isolation & purification*; D008372:Manure; D010084:Oxidation-Reduction; D013455:Sulfur / Q000378:metabolism*; D013552:Swine; D013696:Temperature; D018505:Waste Management
chemical_list: D056804:Biofuels; D008372:Manure; D013455:Sulfur; D006862:Hydrogen Sulfide